JP2020197119A - Opening/closing device and opening/closing control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control each operation of opening / closing / stopping of an opening / closing body by using a non-contact switch. A non-contact switch 25 is composed of three area sensors 25a to 25c arranged adjacent to each other in the vicinity of a push button 24 provided on a peripheral edge of an opening. Since the non-contact switch 25 detects the state in which the fingers 40 are approaching in a non-contact manner, each operation of opening / closing / stopping the screen curtain 15 is controlled according to the detection states of the three area sensors 25a to 25c. There are eight types of detection states for the three area sensors 25a to 25c, one is when all three are in the detection state, and the other is when any one is in the detection state, and when all three are not in the detection state. Based on this detection state, it is detected in which direction the finger 40 is moving or stationary, and when it is detected that the finger 40 is moving in the forward direction, it is opened, and when it is detected that it is moving in the opposite direction, it is closed. When it is detected that the operation is stationary, it is stopped. [Selection diagram] Fig. 5

Description

The present invention relates to a switchgear and an opening / closing control method configured to partition an opening of a structure including a building such as a building, a factory, or a warehouse by using an opening / closing body such as a shutter, and is particularly a non-contact type. The present invention relates to a switchgear and an open / close control method capable of controlling each operation of an open / close stop using an operator.

An opening / closing device such as a shutter curtain is installed at an opening or window of a structure including a building such as a house, a building, a factory, a warehouse, or a garage, or an opening such as an internal passage or space. The opening is opened and closed by moving the. This opening / closing device includes a slat curtain made of a large number of strip-shaped slat materials, a pipe grill curtain made of a large number of pipe materials connected by a link material, a panel curtain made of a single piece or a large number of connected panel materials, and a net. An opening / closing body such as a net curtain made of a material, a sheet curtain made of a sheet material made of synthetic resin or cloth fiber, or a composite curtain made of a composite member thereof is extended and lowered from the upper part of the opening to close the entire opening. It is configured to do. In such a switchgear, the switchgear is often opened and closed electrically. Examples of the electric switchgear include an electric shutter device, an electric door device, and an electric awning device.

The mainstream of these electric switchgear is a motor drive (inverter), an input / output terminal block, a parameter setting unit, etc. required for opening / closing control of the switchgear housed in one control panel. FIG. 1 is a front view showing a schematic configuration of a conventional roll screen device. The roll screen device 10 includes a storage box 11, guide rails 12, 13, a take-up shaft 14, a screen curtain 15, a weight bar 16, and the like.

The take-up shaft 14 is rotatably attached between a bearing portion (not shown) and a roll end portion (not shown) provided on the inner wall surfaces of the left and right side surfaces in the storage box 11. One end of the screen curtain 15 is attached to the take-up shaft 14, and the weight bar 16 is attached to the other end, and the screen curtain 15 is guided by a slit-shaped doorway provided at the lower end of the storage box 11. It has become like. Therefore, the screen curtain 15 is wound around the winding shaft 14 in accordance with the rotation of the winding shaft 14 and is fed out from the slit-shaped entrance / exit.

The take-up shaft 14 has a hollow pipe shape, and its rotation is controlled by the driving force of the electric motor 17 inserted in the hollow portion. Although not shown, the outside of the main body of the electric motor 17 and the inside of the take-up shaft 14 are fixed, and the output shaft of the electric motor 17 is fixed with bolts or the like so as not to rotate to the bearing portion. Therefore, when the electric motor 17 rotates in the forward direction, the screen curtain 15 operates so as to be unwound, and when the electric motor 17 rotates in the opposite direction, the screen curtain 15 operates so as to be wound up. That is, the opening / closing operation of the screen curtain 15 which is an opening / closing body is controlled by rotating the motor in the forward and reverse directions.

It is the control panel 20 attached and arranged on the right side wall surface of the guide rail 13 that controls the opening / closing operation of the screen curtain 15. The control panel 20 has a microcomputer configuration, and an AC voltage of 200 [V] or 100 [V] is supplied from the outside via a power supply line. The control panel 20 is usually composed of an input / output terminal block, a parameter setting unit, and the like, and a motor drive board. A three-point push button 33 or the like is connected to the input / output terminal block, and a microcomputer that controls the overall operation of the roll screen device 10 is built in. The parameter setting unit displays and changes the parameters of various processing modes, and displays the change history. The motor drive board controls the rotation of the electric motor 17.

Conventionally, the push button 33 connected to the input / output terminal block as described above is operated to control each operation of opening / closing / stopping the screen curtain 15. On the other hand, Patent Document 1 discloses a non-contact switch for an automatic door that outputs a control signal for opening and closing the automatic door simply by holding a finger near the door.

Japanese Unexamined Patent Publication No. 2008-159293

The non-contact switch for an automatic door described in Patent Document 1 is suitable for food factories and hospitals where consideration for hygiene is required. However, the non-contact switch for an automatic door described in Patent Document 1 automatically opens the door and then automatically closes the door by holding a finger over the switch portion, and is close to the automatic door. Instead of detecting a person by a near-infrared reflection method, it simply opens and closes the door automatically in response to the action of holding a finger.

Therefore, even if the non-contact switch for an automatic door described in Patent Document 1 is used, it is difficult to perform the same opening / closing operation as the three-point push button provided in the shutter device, and each operation of opening / closing / stopping is performed. It was not possible to perform the operation of arbitrarily controlling.

The present invention has been made in view of the above points, and an object of the present invention is to provide an opening / closing device and an opening / closing control method capable of controlling each operation of opening / closing / stopping of an opening / closing body by using a non-contact switch.

The first feature of the opening / closing device according to the present invention is an opening / closing means for opening / closing the opening by moving an opening / closing member from the peripheral edge of the opening, and a push button means for instructing the operation of the opening / closing means. The non-contact switch means, which is arranged in the vicinity of the push button means and detects the approaching state of the fingers in a non-contact manner, and the non-contact switch means according to the operating state of the push button means and the detection state of the non-contact switch means. It is provided with an opening / closing control means for controlling the operation of the opening / closing means.
In this method, the non-contact switch means for non-contact detecting the approaching state of the fingers is arranged in the vicinity of the push button means, and the opening / closing means operates according to the operating state of the push button means and the detection state of the non-contact switch means. Is designed to be controlled. Since the opening / closing means controls the operation of the opening / closing stop based on the operating state of the push button means and the detection state of the non-contact switch means, there is a slight delay when controlling the opening / closing stop based on the operating state of the non-contact switch means. In such a case, it is possible to control the opening / closing stop in real time according to the operating state of the push button means. That is, there are cases where it is more appropriate to use the non-contact switch means and cases where it is more appropriate to use the push button means depending on the situation at that time. Therefore, the opening / closing stop control should be executed by appropriately selecting. Can be done.

The second feature of the switchgear according to the present invention is that in the switchgear described in the first feature, at least two non-contact switch means are arranged adjacent to the peripheral edge of the opening. It is composed of sensors and is intended to detect a state in which a finger approaches the area sensor in a non-contact manner.
In this method, at least two non-contact type area sensors are arranged adjacent to each other, and by holding a finger over one or both of the area sensors, the area sensors are put into a plurality of detection states. By making each of these multiple detection states correspond to the opening / closing stop, each operation of the opening / closing stop of the opening / closing means is controlled.
There are four types of detection states when there are two area sensors: when both are in the detection state, when one of them is in the detection state, and when none of them is in the detection state. Therefore, the open / close operation is controlled by corresponding to the stop operation when both are in the detection state and the open operation and the close operation when one of them is in the detection state, respectively.
In addition, as the detection state when there are three area sensors, all three are in the detection state, any two are in the detection state, any one is in the detection state, and all three are in the detection state. There are eight types when is not in the detection state. Therefore, the opening / closing operation is controlled by corresponding each of these eight types of detection states to the opening / closing operation.
For example, when any one of the three area sensors is in the detection state, each of them corresponds to the opening / closing operation, and when any one of the area sensors is in the detection state, the detection state is set. Correspondingly, each operation of opening and closing is controlled, and nothing else is done. In this case, if one area sensor erroneously reacts to some object to enter the detection state, a malfunction may occur. Therefore, by determining the detection state output from the area sensor based on the change between the predetermined time before and the present time, that is, with the passage of time of the detection state, the possibility of a false detection state can be reduced.

A third feature of the switchgear according to the present invention is that in the switchgear described in the second feature, the push button means is a three-point push for instructing each operation of opening / closing of the opening / closing means. At least two area sensors composed of buttons and constituting the non-contact switch means are in the vicinity of the push buttons along the arrangement direction of the push buttons, and two adjacent area sensors are one. The fingers are separated from each other at positions where they can be detected at the same time, and the open / close control means determines which direction the fingers have moved in the forward or reverse direction along the arrangement direction based on the detection state of the area sensor. It detects whether it is stationary, and when it detects that it has moved in the forward direction, it executes the opening operation of the opening / closing means, and when it detects that it has moved in the opposite direction, it executes the closing operation of the opening / closing means and stands still. When it is detected, the opening / closing means is stopped.
Normally, the opening / closing operation is performed using a non-contact switch means, but if you want to perform the opening / closing operation reliably, such as during maintenance, a contact-type three-point push button is provided. , It is desirable to perform the opening / closing operation by contact operation. Therefore, in the present invention, the switchgear is provided with both a conventional contact-type three-point push button and a non-contact switch means so that they can be shared. In addition, an area sensor is provided near the push button. At this time, the distance between the adjacent area sensors is set so that the two adjacent area sensors can detect one finger at the same time. As a result, as the detection state when there are two or three area sensors as described above, it is possible to set two adjacent two by one finger in the detection state, and the operability can be improved. Further, based on the detection state of the area sensor arranged in this way, it is possible to detect whether the fingers are moving in the forward or reverse direction along the arrangement direction or are stationary. Then, when it is detected that it has moved in the forward direction, the opening / closing means is opened, when it is detected that it has moved in the opposite direction, the opening / closing means is closed, and when it is detected that it is stationary, the opening / closing means is opened. It is possible to control the opening / closing operation of stopping the operation. In the present specification, the term "fingers" is a general term including not only human fingers but also elongated objects similar to human fingers such as artificial fingers, pencils, and pens.

The fourth feature of the switchgear according to the present invention is that in the switchgear described in the third feature, when the non-contact switch means is composed of the first and second area sensors, the first The area sensor is provided between the open button and the stop button of the push button, and the second area sensor is provided between the stop button and the close button of the push button.
This is related to the specific arrangement position of the area sensor when the switchgear is configured to be shared by providing both a conventional contact-type three-point push button and two non-contact switch means. The area sensor is provided at an approximately intermediate position between the open button and the stop button, and the second area sensor is provided at an approximately intermediate position between the stop button and the close button.

The fifth feature of the switchgear according to the present invention is the case where the non-contact switch means is composed of the first, second and third area sensors in the switchgear described in the second feature. The first area sensor is near the side of the push button open button, the second area sensor is near the side of the push button stop button, and the third area sensor is near the push button. It is to be provided near the side of the close button of.
This is related to the specific arrangement position of the area sensor in the case where the switchgear is configured to be shared by providing both a conventional contact-type three-point push button and three non-contact switch means. The sensor is provided near the side of the open button, the stop button, and the close button, respectively.

The sixth feature of the switchgear according to the present invention is that in the switchgear according to the second, third or fourth feature, the switchgear control means is either forward or reverse with the fingers along the arrangement direction. The purpose is to detect whether the sensor is moving in a direction or is stationary based on a change in the detection state of the area sensor before a predetermined time and at the present time.
This is because, as described above, when the detection state output from the area sensor is viewed as a change between the predetermined time before and the present time, that is, the detection state with the passage of time, when there are two area sensors, there are four types before the predetermined time. At present, it is possible to construct a conversion table having a total of 16 conversion patterns of 4 types. Further, when there are three area sensors, it is possible to configure a conversion table having a total of 64 conversion patterns, 8 types before the predetermined time and 8 types at the present time. By assigning each operation of opening / closing / stopping to the conversion table having 16 or 64 conversion patterns, it is detected whether the operator's finger is moving or stationary in the forward / reverse direction along the arrangement direction. I tried to do it. Since the change in the elapsed time of the detection state is obtained only when the operator intentionally moves the finger in front of the area sensor by performing a predetermined operation, the above-mentioned false detection state may occur. Decreases. In addition, the change in the elapsed time of the detection state is recognized as a series of change patterns, and based on the change pattern, it is detected whether the finger is moving in the forward or reverse direction along the arrangement direction or is stationary. You may. In this case as well, since the series of change patterns and the movements of the fingers correspond to each other, the possibility of the above-mentioned false detection state can be reduced.

The first feature of the opening / closing control method according to the present invention is that the opening / closing member is moved from the peripheral edge of the opening according to the operating state of the push button means for instructing the operation of the opening / closing means. In the opening / closing control method for controlling each operation of opening / closing / stopping of the opening / closing means for opening / closing, when the non-contact switch means arranged in the vicinity of the push button means detects the approaching state of the fingers in a non-contact manner, the push button The purpose is to control the operation of the opening / closing means according to the operating state of the means and the detection state of the non-contact switch means.
This is an invention of a switchgear control method corresponding to the switchgear described in the first feature.

The second feature of the opening / closing control method according to the present invention is that at least two area sensors are arranged adjacent to the peripheral edge of the opening, and the fingers approach each other by using the non-contact switch means composed of the area sensors. The present invention is to detect by non-contact and control each operation of the opening / closing stop according to a signal indicating a detection state output from the non-contact switch means.
This is an invention of a switchgear control method corresponding to the switchgear described in the second feature.

The third feature of the opening / closing control method according to the present invention is that in the opening / closing control method described in the second feature, the push button means is a three-point type for instructing each operation of opening / closing / stopping of the opening / closing means. The at least two area sensors composed of the push buttons and constituting the non-contact switch means are in the vicinity of the push buttons along the arrangement direction of the push buttons, and the two adjacent area sensors are arranged. The fingers are separated from each other at positions where one finger can be detected at the same time, and the fingers move in either the forward or reverse direction along the arrangement direction or are stationary based on the detection state of the area sensor. When it is detected that it has moved in the forward direction, the opening / closing operation of the opening / closing means is executed, and when it is detected that it has moved in the opposite direction, the closing operation of the opening / closing means is executed, and it is detected that it is stationary. The purpose is to stop the opening / closing means.
This is an invention of a switchgear control method corresponding to the switchgear described in the third feature.

The fourth feature of the open / close control method according to the present invention is that in the open / close control method described in the third feature, when the non-contact switch means is composed of the first and second area sensors, the first The area sensor 1 is provided between the open button and the stop button of the push button, and the second area sensor is provided between the stop button and the close button of the push button.
This is an invention of a switchgear control method corresponding to the switchgear described in the fourth feature.

The fifth feature of the open / close control method according to the present invention is that in the open / close control method described in the third feature, when the non-contact switch means is composed of the first, second and third area sensors. The first area sensor is located near the side of the push button open button, the second area sensor is located near the side of the push button stop button, and the second area sensor is located near the side of the push button stop button. It is provided near the side of the close button of the push button.
This is an invention of a switchgear control method corresponding to the switchgear described in the fifth feature.

The sixth feature of the open / close control method according to the present invention is which of the forward and reverse directions the fingers have moved along the arrangement direction in the open / close control method according to the third, fourth or fifth feature. Alternatively, it is to detect whether it is stationary or not based on the change in the detection state of the area sensor before and at the present time.
This is an invention of an opening / closing control method corresponding to the opening / closing device according to the sixth feature.

According to the opening / closing device and the opening / closing control method of the present invention, there is an effect that each operation of opening / closing / stopping of the opening / closing body can be controlled by using the non-contact switch.

It is a front view which shows the schematic structure of the conventional roll screen apparatus. It is a front view which shows the schematic structure of the roll screen device which is an example of the switchgear which concerns on this invention. It is a side view which looked at the roll screen apparatus of FIG. 2 from the left side. 2 is a diagram showing an outline of a connection relationship between an input / output terminal block, a motor drive board, and a parameter setting unit for constructing a control system for controlling the drive of the motor of the roll screen device of FIGS. 2 and 3. It is a figure which shows an example of the input / output terminal block which built in the parameter setting unit of FIG. It is a flowchart which shows an example of the process executed by the input / output terminal block of the switchgear which concerns on this embodiment. It is a flowchart which shows an example of the process executed by the motor drive board of the switchgear which concerns on this embodiment. It is a flowchart which shows an example of the process executed by the parameter setting unit of the switchgear which concerns on this embodiment. FIG. 6 is a diagram showing an example of detection signal processing executed by the input / output terminal block based on the detection signal from the non-contact switch in step S212 of FIG. It is a figure which shows an example of the conversion table which has 64 conversion patterns for selecting the signal to be output corresponding to the state of each area flag of three area sensors. It is a figure which shows an example of the conversion table which has 16 conversion patterns for selecting the signal to be output corresponding to the state of each area flag of two area sensors.

Hereinafter, preferred embodiments of the switchgear according to the present invention will be described with reference to the accompanying drawings. FIG. 2 is a front view showing a schematic configuration of a roll screen device which is an example of a switchgear according to the present invention. FIG. 3 is a side view of the roll screen device of FIG. 2 as viewed from the left side. In this embodiment, a roll screen device that is vertically opened / closed (elevated) controlled as an opening / closing device will be described as an example.

The roll screen device 10 is provided directly on the ceiling above the opening of the structure frame or indirectly via other members, or directly or indirectly on the upper beam with respect to other members. Or The roll screen device 10 is composed of a storage box 11, guide rails 12 and 13, a take-up shaft 14, a screen curtain 15 made of synthetic fiber fabric, and a weight bar 16, respectively.

The roll screen device 10 has a storage box 11 on an upper ceiling or the like, with an upper portion in an open direction and a lower portion in a closed direction. The roll screen device 10 winds and rewinds the screen curtain 15 made of a curtain cloth made of a synthetic fiber cloth (polyester or the like) on the take-up shaft 14, so that the tip end side opens and closes the doorway. It is a thing. Fasteners are provided on both sides of the screen curtain 15 over its entire length. This fastener portion is sandwiched between the inner rails provided in the guide rails 12 and 13, and slides freely in the vertical direction. This fastener portion utilizes an element that is a meshing portion of a normal slide fastener (sliding fastener). In this fastener part, metal fasteners whose elements are made of metal such as copper, aluminum, and white, resin fasteners whose elements are made of coiled polyester resin, and resin elements such as polyacetal are ejected onto the tape. It is composed of molded Bislon fasteners.

Inner rails are provided in the guide rails 12 and 13, but their illustrations are omitted. In FIG. 1, it is shown that the guide rails 12 and 13 are provided on both sides of the screen curtain 15 over the entire length thereof, but in reality, the inner rails are provided in the guide rails 12 and 13 and the curtain cloth is provided. Both sides of the rail are sandwiched between the guide rails 12 and 13, and are configured to slide freely in the vertical direction.

The take-up shaft 14 is rotatably attached between a bearing portion (not shown) and a roll end portion (not shown) provided on the inner wall surfaces of the left and right side surfaces of the storage box 11. One end of the screen curtain 15 is attached to the take-up shaft 14, and the weight bar 16 is attached to the other end, and the screen curtain 15 is guided by a slit-shaped doorway provided at the lower end of the storage box 11. It has become like. Therefore, the screen curtain 15 is wound around the take-up shaft 14 or unwound from the slit-shaped doorway according to the rotation of the take-up shaft 14. An abnormality detection sensor (not shown) for detecting an abnormal state when the screen curtain 15 is loosened in the storage box 11 during winding is attached to the inner wall surface of the storage box 11. An obstacle detection device may be provided at the tip of the screen curtain 15 on the closed side.

The take-up shaft 14 has a hollow pipe shape, and its rotation is controlled by an electric motor 17 inserted in the hollow portion. The outside of the main body of the electric motor 17 and the inside of the take-up shaft 14 are fixed, and the output shaft of the electric motor 17 is fixed with bolts or the like so as not to rotate on the bearing portion. Therefore, when the electric motor 17 rotates in the forward direction, the screen curtain 15 closes (lowers) so as to be extended, and when it rotates in the opposite direction, the screen curtain 15 opens (rises) so as to be wound up. To do. That is, the opening / closing operation of the screen curtain 15 which is an opening / closing body is controlled by rotating the electric motor 17 in the forward and reverse directions.

In this embodiment, the switchgear that controls the drive of the electric motor 17 of the roll screen device 10 is composed of an input / output terminal block 21, a motor drive board 22, and a parameter setting unit 23. The input / output terminal block 21 has a microcomputer configuration, and an AC voltage of 200 [V] or 100 [V] is supplied from the outside via a power supply line (not shown), and the AC voltage is 24 [. It is converted into a DC voltage of [V] and supplied to the motor drive board 22 via a power cable.

The input / output terminal block 21 includes a three-point push button, buzzer, pull switch, start-up sensor, signal light, revolving light, buzzer, various sensors (photoelectric sensor for obstacle detection, etc.), remote control control circuit, etc. Each component is connected. The input / output terminal block 21 has a built-in microcomputer that controls the overall operation of the roll screen device 10, and is predetermined based on a control signal corresponding to the operation state of the push button, a signal from the motor drive board 22, and the like. The process is executed according to the process mode, and the rotation of the electric motor 17 is controlled.

The input / output terminal block 21 has a built-in program for executing the processing mode, a memory for storing various parameters required for processing execution, and the like. The input / output terminal block 21 has a built-in parameter setting unit 23, and can execute parameter setting changes of various processing modes based on the parameter setting signal or the change signal. The value set as the parameter is a numerical value or a value other than a numerical value (for example, a character string or a symbol that specifies the processing mode content) depending on the purpose of the parameter.

The input / output terminal block 21 containing the parameter setting unit 23 is arranged on a flat portion on the front side of the guide rail 13. In the present specification, the front side of the paper surface in the direction along the opening of FIG. 2 and the left side of FIG. 3 are the front side of the guide rail 12, and the opposite side is the back side. The parameter setting unit 23 manages each parameter assigned to each component connected to the input / output terminal block 21 as a memory address, and when any parameter is changed in setting, the address of the changed parameter. Update the setting value by leaving the changed parameter at another address in the memory. As a result, the default value of the parameter becomes immutable, and the parameter in the memory whose setting has been changed can be accessed and the parameter change history can be managed as appropriate based on the changed address.

The motor drive board 22 is arranged below the take-up shaft 14 and the electric motor 17 in a space on the floor surface in the storage box 11. The electric motor 17 is provided with a limit switch (not shown) composed of a pulse generation type rotary encoder or the like for detecting the rotation position, that is, the open / closed position and the open / closed state of the screen curtain 15. The motor drive board 22 inputs a pulse signal corresponding to the rotation of the electric motor 17 output from the limit switch, and determines the rotation position of the electric motor 17 and the position at the opening of the closed end of the screen curtain 15. Obtained by calculation based on the generation status of this pulse, and transmitted to the input / output terminal block 21.

FIG. 4 is a diagram showing an outline of a connection relationship between an input / output terminal block, a motor drive board, and a parameter setting unit for constructing a control system for controlling the drive of the motor of the roll screen device of FIGS. 2 and 3. The input / output terminal block 21 and the motor drive board 22 and the input / output terminal block 21 and the parameter setting unit 23 are connected by communication cables 30 and 31 of RS-485, respectively. RS-485 is a physical layer standard for a bus-type connection network system defined by the Electronic Industries Alliance (EIA), and is a communication method capable of multipoint connection. Therefore, since a plurality of devices can be connected on the same bus, in this embodiment, one input / output terminal block 21 manages both the motor drive board 22 and the parameter setting unit 23. In addition, it is possible to increase or decrease or change the arrangement of other devices as appropriate.

In FIG. 4, DC voltage (electric power) is supplied between the input / output terminal block 21 and the motor drive board 22 and between the input / output terminal block 21 and the parameter setting unit 23 via the power cables 32 and 33. Will be done. Further, in FIG. 4, the motor drive substrate 22 receives a signal indicating shutter position information from the limit switch 18 provided on the electric motor 17, and controls the electric motor 17 based on the signal indicating the shutter position information.

A three-point push button 24 having a built-in non-contact sensor is connected to the input / output terminal block 21. In addition to this, the input / output terminal block 21 includes various components such as a buzzer, a pull switch, a start-up sensor, a signal light, a rotating light, a buzzer, various sensors (photoelectric sensor for detecting obstacles, etc.), and a control circuit for a remote controller. The control signals indicating the state changes output from are input respectively. When the input / output terminal block 21 inputs a control signal indicating a state change output from these various components, the motor drive board 22 and / or the motor drive board 22 via the communication cables 30 and 31 execute the corresponding processing. Alternatively, a control signal is transmitted to the parameter setting unit 23.

The motor drive board 22 controls the rotation of the electric motor 17 based on the control signal from the input / output terminal block 21 input via the communication cable 30. At this time, the DC voltage supplied from the power cable 32 is converted into an AC voltage to control the electric motor 17. Further, the motor drive board 22 receives a signal indicating the shutter position information from the limit switch 18 provided on the electric motor 17, controls the electric motor 17 based on the signal, and transmits a signal indicating the shutter position information to the communication cable 30. It is transmitted to the input / output terminal block 21 via.

FIG. 5 is a diagram showing an example of an input / output terminal block having a built-in parameter setting unit of FIG. In addition to the parameter setting unit 23, the input / output terminal block 21 has a built-in three-point push button 24 for opening / closing and a non-contact switch 25. The input / output terminal block 21 is provided on the front side of the guide rail 13 at a position that is easy for the operator to operate when entering the opening. The three-point push button 24 has an ascending (open) button 241, a stop (stop) button 242, and a descending (closed) button 243 as control switches corresponding to each operation of opening / closing and stopping, and each push button 24 A control signal (up (open) signal, stop (stop) signal, down (close) signal) according to the operation state of is output to the microcomputer of the input / output terminal block 21 via the communication cable. Instead of the three-point push button 24, a wireless remote controller switch may be used for operation.

The non-contact switch 25 is composed of an area sensor 25a to 25c provided adjacent to the left side of an ascending (open) button 241 of a three-point push button 24, a stop (stop) button 242, and a descending (closing) button 243. Will be done. The three area sensors 25a to 25c are arranged near the left side of each button along the arrangement direction (vertical direction or opening / closing direction in FIG. 5) of the three-point push buttons 24. The non-contact switch 25 is composed of near-infrared distance limited reflection type area sensors 25a to 25c, detects a state in which a reflective object such as a finger 40 indicated by a dotted line approaches the area sensors 25a to 25c, and outputs the detection signal. Output to the microcomputer of the input / output terminal block 21 via the communication cable. The detection range of the area sensors 25a to 25c is on the left side of the ascending (open) button 241 and the stop (stop) button 242 and the descending (closed) button 243, and is an area of about 5 to 15 [cm] in front of the sensor. Area) A, B, C. The area sensors 25a to 25c may be provided adjacent to the right side of the up (open) button 241 of the three-point push button 24, the stop (stop) button 242, and the down (close) button 243. The finger 40 includes not only a human finger but also an elongated object similar to a human finger such as a finger of an artificial hand, a pencil, or a pen.

The area sensors 25a to 25c detect the presence of the finger 40 when the object finger 40 is located in the areas (areas) A, B, and C indicated by the dotted line. The input / output terminal block 21 that has input the detection signal from the non-contact switch 25 composed of the area sensors 25a to 25c executes the detection signal processing based on the detection signal. In this detection signal processing, an ascending (open) button 241 and a stop (stop) button of the three-point push button 24 are performed based on the detection signal output from the non-contact switch 25 according to the movement of the finger 40 which is an object. 242, It is a process of detecting the same state as when the down (close) button 243 is operated. In FIG. 5, the areas (areas) A, B, and C shown by the dotted lines are not overlapped, but areas that overlap may be set. Further, the separation distance of each area (area) A, B, C can be simultaneously held over two areas A, B, or areas B, C when the finger 40 is the size of a standard adult. However, it is preferable that the size is such that one finger 40 cannot be held over the three areas A to C at the same time. That is, it is preferable that the two adjacent area sensors 25a and 25b, 25b and 25c are arranged apart from each other at positions where one finger 40 can be detected at the same time. When the fingers are simultaneously held over the three areas A to C or the separated areas A and C at the upper and lower ends, it can be handled by holding both fingers. The details of the processing corresponding to the detection signal from the non-contact switch 25 will be described later.

The parameter setting unit 23 includes a parameter display unit 231, an enter switch 232, a mode selection switch 233, and scroll switches 234 and 235. The parameter display unit 231 displays characters and images for changing parameter settings, reads parameters of various processing modes stored in the parameter memory of the input / output terminal block 21, and displays them on the screen. In addition to displaying, various processing screens, etc. when changing parameter settings are displayed. The enter switch 232 functions as a start switch for setting the parameter setting processing mode of the parameter setting unit 23, a switch for determining the parameter whose setting is changed, a switch for determining the parameter value whose setting has been changed, and the like. The mode selection switch 233 functions as a switch for selecting the display mode of the display screen of the parameter display unit 231. The scroll switches 234 and 235 function as switches for scrolling the contents displayed on the display screen of the parameter display unit 231 in the vertical direction.

For example, when the scroll switches 234 and 235 are operated, the parameters displayed on the display screen of the parameter display unit 231 move in the vertical direction. Therefore, the parameters for which the setting change is desired are displayed, and the characters of the parameters are highlighted. By operating the enter switch 232 in this state, the setting of the corresponding parameter can be changed, and all the setting values that can be set for the parameter to be changed are displayed. In this state, the scroll switches 234 and 235 are further operated to move the displayed settable setting value in the vertical direction to select a desired setting value, and the enter switch 232 is operated to change the setting. The set value of the parameter to be set is selected and set as a new parameter.

FIG. 6 is a flowchart showing an example of processing executed by the input / output terminal block of the switchgear according to this embodiment. FIG. 7 is a flowchart showing an example of processing executed by the motor drive substrate of the switchgear according to this embodiment. FIG. 8 is a flowchart showing an example of processing executed by the parameter setting unit of the switchgear according to this embodiment. Hereinafter, an example of the processing executed by the switchgear will be described with reference to these flowcharts.

An example of the processing executed by the input / output terminal block 21 will be described with reference to FIG.
In step S211 it is determined whether or not signals indicating a state change have been input from various connected components, and if the state has changed (yes), the process proceeds to the next step S212, and if not (no). If so, jump to step S213. Here, the signals indicating the state change are, for example, a pressing operation signal from the three-point push button 24, a detection signal from the non-contact switch 25, an operation signal from the pull switch, an activation signal from the activation sensor, and an obstacle. Sensing signals from photoelectric sensors for sensing correspond to each.

In step S212, a control signal corresponding to a signal indicating a state change input from various connected components is transmitted to the motor drive board 22 via the communication cable 30. For example, when a pressing operation signal from the three-point push button 24 is input, the opening / closing stop control signal corresponding to each opening / closing stop push button 241 to 243 is transmitted to the motor drive board 22. Further, the detection signal processing is executed based on the detection signal from the non-contact switch 25, and the control signal for opening / closing is transmitted to the motor drive board 22. Further, when the detection signal is input from the photoelectric sensor for detecting obstacles, the closing operation stop signal is transmitted to the motor drive board 22.

In step S213, it is determined whether or not the signal has been received via the communication cable 30, and if it is received (yes), the process proceeds to the next step S214, and if not (no), the signal returns.
In step S214, processing corresponding to the received signal is executed. For example, when the received signal is a processing end signal from the motor drive board 22 or a signal indicating the shutter position information of the limit switch 18 from the motor drive board 22, the screen curtain 15 is based on the processing end signal and the shutter position information. Recognizes the completion of the opening / closing stop processing and the position of the screen curtain 15 at the end, and uses it for the subsequent processing. If the received signal is a signal related to parameter setting from the parameter setting unit 23, the parameters of various processing modes of the input / output terminal block 21 are changed based on the signal related to the parameter setting, and a signal indicating the end of the setting change is signaled. Is transmitted to the parameter setting unit 23 via the communication cable 31.

An example of the process executed by the motor drive board 22 will be described with reference to FIG. 7.
In step S221, it is determined whether or not the signal has been received via the communication cable 30, and if it is received (yes), the process proceeds to the next step S222, and if not (no), the signal returns.
In step S222, processing corresponding to the received signal is executed. For example, when the received signal is a pressing operation signal of the three-point push button 24 from the input / output terminal block 21, or when the opening / closing stop control signal is based on the detection signal from the non-contact switch 25, it is for obstacle detection. In the case of a closing operation stop signal based on the sensing signal from the photoelectric sensor of the above, the opening / closing / stopping process of the screen curtain 15 is executed according to each signal.

In step S223, a signal indicating which operation of opening / closing / stopping the screen curtain 15 is being executed, a signal indicating the shutter position information of the limit switch 18, and the like are transmitted to the input / output terminal block 21 via the communication cable 30. To do.

In step S224, it is determined whether or not the received signal correspondence process of step S222 is completed, that is, whether or not each operation of opening / closing is completed, and if it is completed (yes), the process proceeds to the next step S225. If not (no), the process returns to step S222 until the operation is completed.
In step S225, since each operation of opening / closing / stopping is completed, the end signal is transmitted to the input / output terminal block 21 via the communication cable 30.

An example of the process executed by the parameter setting unit 23 will be described with reference to FIG.
In step S231, it is determined whether or not each switch as shown in FIG. 5 has been operated. If it is operated (yes), the process proceeds to the next step S232, and if not (no), the process jumps to step S233. To do.

In step S232, the control signal corresponding to the operated switch is transmitted to the input / output terminal block 21 via the communication cable 31. For example, when the enter switch 232, the mode selection switch 233, and the scroll switches 234 and 235 of the parameter setting unit 23 are operated, the control signal corresponding to each switch is transmitted to the input / output terminal block 21 via the communication cable 31.

In step S233, it is determined whether or not the signal has been received via the communication cable 31, and if it is received (yes), the process proceeds to the next step S234, and if not (no), the signal returns.
In step S234, processing corresponding to the received signal is executed. For example, when the received signal is a signal indicating the end of the parameter setting change from the input / output terminal block 21, the parameter display unit 231 displays that the parameter setting change is completed based on the signal.

FIG. 9 is a diagram showing an example of detection signal processing executed by the input / output terminal block based on the detection signal from the non-contact switch in step S212 of FIG. In this embodiment, the process is executed by using the count registers Ra to Rc and the area flags Fa to Fc corresponding to the area sensors 25a to 25c constituting the non-contact switch 25, respectively. The count registers Ra to Rc store the values from the lower limit value "0" to the upper limit value "10", and do not count the values below "0" and above "10". It has become.

In step S251, it is detected whether or not the finger 40, which is an object, exists in the detectable areas A to C of the area sensors 25a to 25c, and if yes, the process proceeds to the next step S252 and the detection occurs. If not (no), the process jumps to step S253.
In step S252, the count registers Ra to Rc corresponding to the areas A to C where the presence of the finger 40, which is an object, is detected are counted up.
In step S253, the count registers Ra to Rc corresponding to the areas A to C in which the presence of the finger 40, which is an object, is not detected are counted down.

In step S254, it is determined whether or not there is a count value of "10" in the count registers Ra to Rc, and if the count value is "10" (yes), the process proceeds to the next step S255, and other than that. For those of "0" to "9" (no), the process jumps to step S256.
In step S255, "1" is set (set) in the area flags Fa to Fc corresponding to the count registers Ra to Rc having a count value of "10".

In step S256, it is determined whether or not there is a count value "0" in the count registers Ra to Rc, and if the count value is "0" (yes), the process proceeds to the next step S255, and other than that. For those of "1" to "10" (no), jump to step S258.
In step S257, the area flags Fa to Fc corresponding to the count registers Ra to Rc whose count value is "0" are erased, that is, reset to "0".
In step S258, the determination is performed from the determination in step S251 until 1 [msec] elapses. That is, according to this determination, sampling processing for whether or not the finger 40, which is an object, exists in areas A to C is executed every 1 [msec]. The time of this sampling process is an example, and may be longer or shorter.

In step S259, signal output processing corresponding to the states of the area flags Fa to Fc rewritten by the processing of steps S255 and S257 is executed. FIG. 10 is a diagram showing an example of a conversion table having 64 conversion patterns for selecting a signal to be output corresponding to the state of each area flag of the three area sensors. The conversion table of FIG. 10 is any of an ascending signal, a stop signal, and a descending signal based on the data of the state before the area flags Fa to Fc (the state before a predetermined time from the present time) and the current state (the current state). Determines whether to output. The ascending signal, stop signal, and descending signal are output as a one-shot signal of about 100 [msec].

In the conversion table of FIG. 10, the data sequences "000" to "111" are those in which the states are arranged in the order of the area flags Fa, Fb, and Fc, and are represented by a three-digit binary number. "0" in the data sequence "000" to "111" indicates that the finger 40 does not exist before the corresponding area sensor 25a to 25c, and "1" indicates that the finger 40 does not exist before the corresponding area sensor 25a to 25c. It shows that 40 is present. Therefore, the data sequence "000" indicates that the finger 40 does not exist in front of the area sensors 25a to 25c. The data sequence "001" is in front of the area sensor 25c, the data sequence "010" is in front of the area sensor 25b, the data sequence "011" is in front of the area sensors 25b and 25c, and the data sequence "100" is in front of the area sensor 25a. The data sequence "101" is in front of the area sensors 25a and 25c, the data sequence "110" is in front of the area sensors 25a and 25b, and the data sequence "111" is in front of the area sensors 25a to 25c. Shown. In the case of FIG. 6, since the finger 40 is present in front of the area sensor 25a, the data sequence is “100”.

According to the conversion table of FIG. 10, when the data sequence in the previous state and the data sequence in the current state are the same, that is, when they are not detected as movements by the fingers 40 and are stationary, no signal output is performed. .. Further, the same applies when the data sequence of the current state is "000" regardless of the data of the previous state, that is, when the finger 40 no longer exists in the areas A to C which are the detection ranges of the area sensors 25a to 25c. No signal is output to. When the data sequence in the previous state is "010" and the data sequence in the current state is "111" or "101", that is, the fingers 40 existing in one place of the area sensor 25b are applied to all the area sensors 25a to 25c. The signal output is also performed when it is detected as a movement that exists, or when the finger 40 existing in the area sensor 25b is detected as a movement that exists in two places of the area sensors 25a and 25c above and below it. Absent.

When the data sequence in the previous state is "111" and the data sequence in the current state is "010" or "101", that is, the fingers 40 existing in all the area sensors 25b are located in one place of the central area sensor 25b. The signal is also output when it is detected as a movement that exists, or when the fingers 40 existing in all the area sensors 25b are detected as movements that exist in two places of the area sensors 25a and 25c above and below it. Do not do. When the data sequence in the previous state is "101" and the data sequence in the current state is "010" or "111", that is, the finger 40s existing at the upper and lower area sensors 25a and 25c are the central area sensors. When it is detected as a movement that exists in one place of 25b, or if the fingers 40 that exist in two places of the upper and lower area sensors 25a and 25c are detected as a movement that exists in all the area sensors 25a to 25c. Even in this case, no signal output is performed.

The data sequence in the previous state is "000", and the data sequence in the current state is other than "000" ("001", "011", "010", "110", "100", "111", "101". ”), That is, when the fingers 40 that did not exist in front of the area sensors 25a to 25c are detected as movements that exist in front of at least one of the area sensors 25a to 25c, a stop signal is sent. Output.

The data sequence in the previous state is "001", and the data sequence in the current state is other than "000" and "001" ("011", "010", "110", "100", "111", "101". In the case of "), that is, the finger 40 existing in one place of the area sensor 25c moves so as to exist in two places of the area sensors 25b and 25c of the data arrangement" 011 ", and the area sensor 25b of the data arrangement" 010 " Movement that exists in one place, movement that exists in two places of the area sensors 25a and 25b of the data sequence "110", movement that exists in one place of the area sensor 25a of the data sequence "100", data When it is detected as a movement that exists in all the area sensors 25a to 25c of the arrangement "111" and a movement that exists in two places of the area sensors 25a and 25c above and below the data arrangement "101", respectively. It is determined that the finger 40 has moved upward (positive direction) along the arrangement direction (vertical direction) of the three-point push buttons 24, and an ascending signal is output.

When the data sequence in the previous state is "011" and the data sequence in the current state is "001", that is, the fingers 40 existing at two locations of the area sensors 25b and 25c are the area sensors 25c in the data sequence "001". If it is detected as a movement that exists in one place, it is determined that the finger 40 has moved downward (reverse direction) along the arrangement direction (vertical direction) of the three-point push buttons 24. , Outputs a descending signal. On the other hand, when the data sequence in the previous state is "011" and the data sequence in the current state is "011", "010", "110", "100", "111", "101", that is, the area sensor. The fingers 40 existing at two locations of 25b and 25c move so as to exist at two locations of the area sensor 25b and 25c of the data sequence "011", so that they exist at one location of the area sensor 25b of the data sequence "010". Movement, movement that exists in two places of the area sensor 25a and 25b of the data line "110", movement that exists in one place of the area sensor 25a of the data line "100", all of the data line "111" When it is detected as a movement that exists in the area sensors 25a to 25c of the above and a movement that exists in two places of the area sensors 25a and 25c above and below the data sequence "101", an ascending signal is output.

When the data sequence in the previous state is "010" and the data sequence in the current state is "001" or "011", that is, the finger 40 existing in one place of the area sensor 25b is the area of the data sequence "001". If it is detected as a movement that exists in one place of the sensor 25c or a movement that exists in two places of the area sensors 25b and 25c of the data sequence "011", a descending signal is output. On the other hand, when the data sequence in the previous state is "010" and the data sequence in the current state is "110" or "100", that is, the finger 40 existing in one place of the area sensor 25b is the data sequence "110". If it is detected as a movement that exists in two places of the area sensors 25a and 25b of the above, or a movement that exists in one place of the area sensor 25a of the data sequence "100", it is judged in the same manner as above and rises. Output a signal.

When the data sequence in the previous state is "110" and the data sequence in the current state is "001", "011", "010", "111", "101", that is, two locations of the area sensors 25a and 25c. The movement and data arrangement such that the fingers 40 existing in the data arrangement "001" exist in one place of the area sensor 25c, or the movement and the data arrangement exist in two places of the area sensors 25b and 25c of the data arrangement "011". When it is detected as a movement that exists in all the area sensors 25a to 25c of "111" and a movement that exists in two places of the area sensors 25a and 25c above and below the data sequence "101", the above-mentioned Judgment is made in the same manner, and a descending signal is output. On the other hand, when the data sequence in the previous state is "110" and the data sequence in the current state is "100", that is, the fingers 40 existing at two locations of the area sensors 25a and 25c are in the area of the data sequence "100". When it is detected as a movement existing in one place of the sensor 25a, it is determined in the same manner as described above, and an ascending signal is output.

The data sequence in the previous state is "100", and the data sequence in the current state is other than "000" and "100" ("001", "011", "010", "110", "111", "101". In the case of "), that is, the finger 40 existing in one place of the area sensor 25a moves so as to exist in one place of the area sensor 25c of the data sequence" 001 ", and the area sensors 25b and 25c of the data sequence" 011 " Movement that exists in two places, movement that exists in one place of the area sensor 25b of the data sequence "010", movement that exists in two places of the area sensors 25a and 25b of the data sequence "110", data When it is detected as a movement that exists in all the area sensors 25a to 25c of the arrangement "111" and a movement that exists in two places of the area sensors 25a and 25c above and below the data arrangement "101", respectively. Judgment is made in the same manner as described above, and a descending signal is output.

When the data sequence in the previous state is "111" or "101" and the data sequence in the current state is "001" or "011", that is, all of the area sensors 25a to 25c or the upper and lower area sensors 25a and 25c The fingers 40 existing in two places are detected as movements such as existing in one place of the area sensor 25c of the data arrangement "001" and movements existing in two places of the area sensors 25b and 25c of the data arrangement "011". If so, the determination is made in the same manner as described above, and a descending signal is output. On the other hand, when the data sequence in the previous state is "111" or "101" and the data sequence in the current state is "110" or "100", that is, all of the area sensors 25a to 25c or the upper and lower area sensors 25a, Movements such that the fingers 40 existing at two locations of 25c exist at two locations of the area sensors 25a and 25b of the data sequence "110", and movements such that they exist at one location of the area sensors 25a of the data sequence "100". When it is detected as, it is judged in the same manner as described above, and an ascending signal is output.

As described above, in this embodiment, a descending signal is output by moving the finger 40 from top to bottom in the detection areas A to C of the area sensors 25a to 25c constituting the non-contact switch 25, and vice versa. Since the rising signal is output by moving from the bottom to the top, each operation of opening / closing / stopping the screen curtain 15 can be controlled in a non-contact manner. At the time of maintenance, considering that any of the area sensors 25a to 25c and the communication cable may break down, a three-point contact type is used to enable more reliable opening / closing operation. It is desirable to execute the operation of opening / closing / stopping in response to the push button 24 of.

In the embodiment of FIG. 10, a case where each operation of opening / closing / stopping is determined based on the data arrangement of the previous state and the data of the current state, but the opening / closing stop is based on a series of change patterns of the data arrangement. Each action may be determined. For example, the data sequence is "100"-> "110"-> "001", "100"-> "110"-> "011", "100"-> "010"-> "001", "100"-> "010"-> " 011 ”,“ 100 ”→“ 011 ”→“ 001 ”,“ 110 ”→“ 010 ”→“ 001 ”,“ 110 ”→“ 010 ”→“ 011 ”,“ 110 ”→“ 010 ”→“ 001 ” , "110"-> "010"-> "011", if a series of change patterns such that "1" is set in the order of the area flags Fa, Fb, Fc for each timing is shown, it is detected. It is determined that the fingers 40 have moved from top to bottom in areas A to C, and a descending signal is output.

Conversely, the data sequence is "001"-> "011"-> "100", "001"-> "011"-> "110", "001"-> "010"-> "100", "001"-> "010"-> "110", "001" → "110" → "100", "011" → "010" → "100", "011" → "010" → "110", "011" → "010" → "100" , "011"-> "010"-> "110", "011"-> "110"-> "100", and "1" is set in the order of area flags Fc, Fb, Fa for each timing. When such a change pattern is shown, it is determined that the finger 40 has moved from the bottom to the top in the detection areas A to C, and an ascending signal is output. If the same data sequence is detected consecutively, a stop signal is output. Nothing is done with the other series of change patterns.

In the above-described embodiment, the case where the three area sensors 25a to 25c are provided has been described, but the two area sensors may be provided. In this case, the two area sensors 25a and 25b are placed between the ascending (open) button 241 and the stop (stop) button 242 shown in FIG. 5, and the stop (stop) button 242 and the descending (close) button 243. It is preferable to provide the space between the two areas so that one finger 40 can be held over the two areas at the same time. FIG. 11 is a diagram showing an example of a conversion table having 16 conversion patterns for selecting signals to be output corresponding to the states of the area flags of the two area sensors 25a and 25b. The conversion table of FIG. 11 determines whether to output an ascending signal, a stop signal, or a descending signal based on the data of the previous state and the current state of the area flags Fa and Fb.

According to the conversion table of FIG. 11, if the data sequence in the previous state and the data sequence in the current state are the same, that is, if it is not detected as a movement by the finger 40, no signal output is performed. Further, the same applies when the data sequence in the current state is "00" regardless of the data in the previous state, that is, when the fingers 40 no longer exist in the areas A and B which are the detection ranges of the area sensors 25a and 25b. No signal is output to. When the data sequence in the previous state is "00" and the data sequence in the current state is "01", "10", "11", that is, the finger 40 that did not exist before the area sensors 25a and 25b is the area. When it is detected as a movement that exists in front of at least one of the sensors 25a and 25b, a stop signal is output.

When the data sequence in the previous state is "01" and the data sequence in the current state is "10" or "11", that is, the finger 40 existing in one place of the area sensor 25b is the area of the data sequence "10". If it is detected as a movement that exists in one place of the sensor 25a or a movement that exists in two places of the area sensors 25a and 25b of the data sequence "11", it is judged in the same manner as above and the rising signal is detected. Is output.

When the data sequence in the previous state is "10" and the data sequence in the current state is "01" or "11", that is, the finger 40 existing in one place of the area sensor 25a is the area of the data sequence "01". If it is detected as a movement that exists in one place of the sensor 25b or a movement that exists in two places of the area sensors 25a and 25b of the data sequence "11", it is judged in the same manner as above and the descending signal is transmitted. Output.

When the data sequence in the previous state is "11" and the data sequence in the current state is "01", that is, the fingers 40 existing at two locations of the area sensors 25a and 25b are the area sensors 25b in the data sequence "01". If it is detected as a movement that exists in one place, it is judged in the same manner as described above, and a descending signal is output. On the other hand, when the data sequence in the previous state is "11" and the data sequence in the current state is "10", that is, the fingers 40 existing at two locations of the area sensors 25a and 25b are in the area of the data sequence "10". When it is detected as a movement existing in one place of the sensor 25a, it is determined in the same manner as described above, and an ascending signal is output.

In the embodiment of FIG. 11, the case where each operation of opening / closing / stopping is determined based on the data arrangement of the previous state and the data of the current state, but the opening / closing stop is based on a series of change patterns of the data arrangement. Each action may be determined. For example, when the data sequence shows a change pattern such as "10"-> "11"-> "01", it is determined that the finger 40 has moved from top to bottom in the detection areas A and B, and a descending signal is output. To do. On the contrary, when the data arrangement shows a change pattern such as "01"-> "11"-> "10", it is determined that the finger 40 has moved from the bottom to the top in the detection areas A and B, and an ascending signal is sent. Output. When the same data sequence is continuously detected, it is determined in the same manner as described above, and a stop signal is output. Nothing is done with the other series of change patterns.

In the embodiment of FIGS. 10 and 11, the LED that operates so as to light up when "1" is set in the area flags Fa to Fc is the ascending (open) button 241 and the stop (stop) button of FIG. 242, it may be provided in the vicinity of the down (close) button 243. By visually recognizing the lighting state of the LED, the detection state of the finger 40 by the area sensors 25a to 25c, that is, a series of change patterns of the data arrangement can be easily recognized, and the movement of the finger 40 is matched with the LED lighting display. The operability can be improved by operating the LED.

In the above embodiment, when both the push button 24 including the up (open) button 241 and the stop (stop) button 242 and the down (close) button 243 and the non-contact switch 25 including the area sensors 25a to 25c are provided. However, the push button 24 may be omitted and only the non-contact switch 25 may be provided.

In the above-described embodiment, the case where the opening / closing / stopping is controlled in the manual mode by using the ascending (open) button 241 and the stop (stop) button 242, the descending (closed) button 243 or the area sensors 25a to 25c has been described. However, it may be possible to switch to an auto mode that can detect the movement of a person and automatically control the opening / closing stop. In this case, as in the data sequence "101" or "111" in FIG. 10, a special case that cannot be realized without holding both fingers over the separated areas A and C at the upper and lower ends or the three areas A to C. The case may be used as an output of a switching signal between the manual mode and the auto mode.

In the above-described embodiment, the case where the input / output terminal block 21 having the parameter setting unit 23 built in is provided on the front surface of the guide rail 12 has been described, but the input / output terminal block 21 may be provided on the guide rail 12 and / or 13. Good. In this case, the communication cable 30 is preferably arranged at a position outside the inner rail and inside the guide rails 12 and / or 13 so as not to interfere with the curtain 15. It is preferable that the rails 12 and / or 13 are directly wired into the storage box 11 from above. With this configuration, it is possible to prevent the communication cable 30 from being exposed to the outside. At this time, the position of the input / output terminal block 21 is preferably a position that is easy for an adult to operate, and depends on the height of the guide rails 12 and / or 13, but considering a normal building or the like, the guide rails 12 and / or Alternatively, the vicinity of the central position in the height direction avoiding the upper part and the lower part of 13 is preferable.

In the above-described embodiment, the input / output terminal block 21 having a built-in parameter setting unit 23 has been described as an example, but the parameter setting unit 23 and the input / output terminal block 21 are separated into guide rails 12 and / or 13 respectively. It may be provided. In the above-described embodiment, the screen curtain that is extended by the vertical elevating method has been described as an example, but the same applies even if the opening / closing member is extended by the horizontal pulling method or the horizontal method. be able to.
When the opening / closing member is of the vertical elevating method and is configured to be closed by ascending and open by descending, the arrangement direction of the open button 241 and the close button 243 is such that the upper side is the close button 243 and the lower side is the lower side. It is said to be an open button 241. Further, when the opening / closing member is fed by the horizontal pulling method or the horizontal method, the closing button 243 is provided so as to be located on the closing direction side of the open button 241 corresponding to the feeding direction, that is, the closing direction. There is. In these cases, the arrangement relationship between the close button 243 and the open button 241 and the area sensors 25a to 25c is the same as in the vertical elevating method in which the upper side is the opening direction.

Although the case where the obstacle detection device is not provided has been described in the above-described embodiment, the obstacle detection device may be provided in the vicinity of the weight bar and / or in the vicinity of the opening. In this case, as an obstacle detection device, a device that detects an obstacle by contacting the obstacle, such as a seat plate switch or a tape switch, or a device that can detect an obstacle without contact is used. You may. For example, in order to detect obstacles without contact, infrared light emitting elements and light receiving elements may be provided on both sides of the opening / closing member, or infrared light emitting elements and light receiving elements may be provided across an opening. Then, there is a device that detects an obstacle when infrared light is blocked. When an obstacle or a person is detected in the vicinity of the opening, it is preferable to stop the descending operation.

10 ... Roll screen device 11 ... Storage boxes 12, 13 ... Guide rail 14 ... Winding shaft 15 ... Screen curtain 16 ... Weight bar 17 ... Electric motor 18 ... Limit switch 20 ... Control panel 21, 21a ... Input / output terminal block 22 ... Motor drive board 23 ... Parameter setting unit 231 ... Parameter display unit 232 ... Enter switch 233 ... Mode selection switch 234 ... Scroll switch 24 ... Push button 241 ... Up (open) button 242 ... Stop (stop) button 243 ... Down (close) Button 25 ... Non-contact switches 25a to 25c ... Area sensors 30, 31 ... Communication cable 32 ... Power cable 33 ... Push button 40 ... Finger Fa to Fc ... Area flag

Claims (12)

An opening / closing means for opening / closing the opening by moving an opening / closing member from the peripheral edge of the opening.
A push button means for instructing the operation of the opening / closing means and
A non-contact switch means arranged in the vicinity of the push button means and non-contactly detecting a state in which fingers are approaching,
An opening / closing device including an opening / closing control means for controlling the operation of the opening / closing means according to an operating state of the push button means and a detection state of the non-contact switch means. In the switchgear according to claim 1,
The non-contact switch means is composed of at least two area sensors arranged adjacent to the peripheral edge of the opening, and is characterized in that it detects a state in which a finger approaches the area sensor in a non-contact manner. Switchgear. In the switchgear according to claim 2,
The push button means is composed of a three-point push button for instructing each operation of opening / closing / stopping of the opening / closing means.
At least two area sensors constituting the non-contact switch means are in the vicinity of the push buttons along the arrangement direction of the push buttons, and two adjacent area sensors simultaneously detect one finger. Separated from each other so that they can
When the open / close control means detects whether the finger is moving in the forward or reverse direction along the arrangement direction or is stationary based on the detection state of the area sensor, and detects that the finger has moved in the forward direction. Is characterized in that it executes the opening operation of the opening / closing means, executes the closing operation of the opening / closing means when it is detected that it has moved in the opposite direction, and stops the opening / closing means when it is detected that it is stationary. Switchgear. In the switchgear according to claim 3,
When the non-contact switch means is composed of the first and second area sensors, the first area sensor is placed between the open button and the stop button of the push button, and the second area sensor is placed between the open button and the stop button. An opening / closing device provided between a stop button and a close button of the push button. In the switchgear according to claim 3,
When the non-contact switch means is composed of the first, second and third area sensors, the first area sensor is located in the vicinity of the side of the open button of the push button. Is an opening / closing device, wherein the third area sensor is provided near the side of the stop button of the push button, and the third area sensor is provided near the side of the close button of the push button. In the opening / closing body means according to claim 3, 4 or 5,
The open / close control means detects whether the fingers are moving or stationary along the arrangement direction based on changes in the detection state of the area sensor before a predetermined time and at the present time. An opening and closing device characterized by this. Opening and closing that controls each operation of the opening and closing stop of the opening and closing means that opens and closes the opening by moving the opening and closing member from the peripheral edge of the opening according to the operation state of the push button means for instructing the operation of the opening and closing means. In the control method
When the non-contact switch means arranged in the vicinity of the push button means detects the approaching state of the fingers in a non-contact manner, the opening / closing according to the operation state of the push button means and the detection state of the non-contact switch means. An opening / closing control method characterized by controlling the operation of the means. In the opening / closing control method according to claim 7,
At least two area sensors are arranged adjacent to each other on the peripheral edge of the opening, and a non-contact switch means including the area sensors is used to detect a state in which fingers are approaching in a non-contact manner.
An opening / closing control method characterized in that each operation of the opening / closing stop is controlled according to a signal indicating a detection state output from the non-contact switch means. In the opening / closing control method according to claim 8,
The push button means is composed of a three-point push button for instructing each operation of opening / closing / stopping of the opening / closing means.
At least two area sensors constituting the non-contact switch means are in the vicinity of the push buttons along the arrangement direction of the push buttons, and two adjacent area sensors simultaneously detect one finger. Separated from each other so that they can
Based on the detection state of the area sensor, it is detected in which direction the fingers are moving or stationary along the arrangement direction, and when it is detected that the fingers are moving in the forward direction, the opening / closing means is opened. An opening / closing control method comprising executing an operation, executing the closing operation of the opening / closing means when it is detected that it has moved in the opposite direction, and stopping the opening / closing means when it is detected that it is stationary. In the opening / closing control method according to claim 9,
When the non-contact switch means is composed of the first and second area sensors, the first area sensor is placed between the open button and the stop button of the push button, and the second area sensor is placed between the open button and the stop button. , An opening / closing control method provided between a stop button and a close button of the push button. In the opening / closing control method according to claim 9,
When the non-contact switch means is composed of the first, second and third area sensors, the first area sensor is located in the vicinity of the side of the open button of the push button. Is an opening / closing control method, wherein the third area sensor is provided near the side of the stop button of the push button, and the third area sensor is provided near the side of the close button of the push button. In the opening / closing control method according to claim 9, 10 or 11.
Opening and closing, which detects whether the fingers are moving or stationary along the arrangement direction based on changes in the detection state of the area sensor before a predetermined time and at the present time. Control method.

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