CN110572895B - Primary and secondary lighting device, control method of primary and secondary lighting device and intelligent lighting system - Google Patents

Abstract

The invention relates to a mother-to-child lighting device, a control method for the mother-to-son lighting device, and an intelligent lighting system. The parent-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit of the master unit, wherein the master unit is also provided with a detection unit, an MCU control circuit, and a linkage power supply control circuit for controlling the slave units. The detection unit detects peripheral information of the master unit, and The detected detection information is sent to the MCU control circuit, the MCU control circuit receives and recognizes the detection information sent by the detection part, sends the main machine control signal corresponding to the detection information to the main machine power control circuit, and sends the corresponding detection information to the linkage power control circuit. The corresponding sub-machine control signal, the main machine power control circuit and the linked power supply control circuit respectively adjust the main machine and the sub-machine according to the control signal. The invention can control the dimming of the sub-units in linkage to realize energy saving and environmental protection.

Description

Mother-to-child lighting device, control method for mother-to-child lighting device, and intelligent lighting system

technical field

The present invention relates to a lighting device, in particular to a parent-child lighting device, a control method for the parent-child lighting device, and an intelligent lighting system using the parent-child lighting device.

Background technique

The mother-child lighting device usually has two light groups, one is the sub-unit (child lighting fixture), and the other is the master unit (mother lighting fixture), so that people can choose to turn on the sub-unit or the master unit according to the needs of use, and can be used according to different occasions. It provides more than two light sources with different brightness according to the needs of different lighting systems, which not only has more functions than ordinary lighting systems, but also does not need to take up more space. In addition, users can set up the master machine at the door or in the yard, and set up the slave machine in the living room or other places at home. The main machine and the sub-unit are linked and controlled. If the main unit is turned on, the sub-unit will also light up.

Existing parent-child lighting devices generally only have an ON/OFF function, and there is a stepless dimming function, which cannot flexibly adjust the brightness of the sub-unit according to the environment or user needs and save energy.

Contents of the invention

The object of the present invention is to provide a parent-child lighting device, a control method and an intelligent lighting system to solve the above-mentioned defects in the prior art.

The present invention provides a mother-to-child lighting device, which includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. It is characterized in that a detection unit, an MCU control circuit, and a linked power supply control circuit for controlling the slave units are also arranged in the master unit. The detection unit detects the surrounding information of the main machine, and sends the detected detection information to the MCU control circuit, and the MCU control circuit receives and recognizes the detection information sent by the detection unit, and sends the detection information to the main machine power control circuit. The corresponding master machine control signal sends a slave machine control signal corresponding to the detection information to the linked power supply control circuit, and the master machine power control circuit and the linked power supply control circuit control the master machine and the slave machine respectively according to the control signals. machine to adjust.

In the preferred technical solution of the mother-to-child lighting device of the present invention, the control signal of the sub-unit is a PWM signal, the linkage power supply control circuit is a TRIAC dimming circuit, and the TRIAC circuit adjusts the sub-unit by changing the voltage applied to the sub-unit; the detection part Including human body sensor, and/or illuminance sensor, human body sensor senses human body activity information, illuminance sensor senses ambient light intensity to detect illuminance, MCU control circuit generates sub-machine control based on received human body activity information, and/or ambient light intensity information The signal adjusts the sub-machine; the detection part includes a control mode selection switch, the mode selection switch selects one of the various control modes preset in the parent-child lighting device, and the MCU control circuit is based on the control mode selected by the control mode selection switch. The selected control mode generates a sub-machine control signal to regulate the sub-machine.

In another preferred technical solution of the parent-child lighting device of the present invention, the action of adjusting the sub-unit or the main unit according to the sub-unit control signal or the main unit control signal includes lighting up the sub-unit or the main unit, extinguishing the sub-unit or the main unit, adjusting the sub-unit or the main unit, and adjusting the sub-unit or the main unit. The brightness of the main machine or the main machine, and at least one operation of controlling the lighting time of the sub-machine or the main machine, and the control signal of the main machine is a PWM signal, and the duty cycle of the control signal of the main machine and the control signal of the sub-machine is the same or different.

In another preferred technical solution of the mother-to-child lighting device of the present invention, the slave unit is a lamp in phase dimming mode, the mode selection switch is a rotary switch, and the human body sensor is an infrared sensor.

In another preferred technical solution of the mother-to-child lighting device of the present invention, at least one of the control modes is: detecting information on the intensity of ambient light and whether there is human activity information, and the MCU control circuit compares the information on the intensity of ambient light with the preset light threshold In comparison, if human body activity information is detected, and the detected ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a signal corresponding to the detection information to the linked power supply control circuit. The machine control signal controls the sub-machine to light up with the corresponding preset brightness and preset duration.

In another preferred technical solution of the parent-child lighting device of the present invention, at least one of the control modes is: to detect the ambient light intensity information, and the MCU control circuit compares the detected ambient light intensity information with the preset light threshold, if If the detected ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a sub-machine control signal corresponding to the detection information to the linkage power supply control circuit, and controls the sub-machine to light up accordingly. preset brightness and preset duration.

In another preferred technical solution of the mother-to-child lighting device of the present invention, at least one of the control modes is: detecting whether there is human body activity information, as long as the human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, to the linkage The power control circuit sends a sub-machine control signal corresponding to the detected human body activity information, and controls the sub-machine to light up with a corresponding preset brightness and preset duration.

The present invention also provides a control method for a mother-and-child lighting device. The mother-and-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The master unit is also provided with a detection unit, an MCU control circuit, and a linkage power supply for controlling the slave units. A control circuit, the control method includes the steps of:

S1: The detection part detects the surrounding information of the base machine, and sends the detected detection information to the MCU control circuit;

S2: The MCU control circuit receives and recognizes the detection information sent by the detection unit, sends a master control signal corresponding to the detection information to the master power control circuit, and sends a slave control signal corresponding to the detection information to the linkage power control circuit;

S3: The master machine power control circuit and the linked power supply control circuit respectively adjust the master machine and the slave machine according to the control signals received respectively.

In the control method of the parent-child lighting device of the present invention, as a preferred technical solution, the control signal of the sub-machine is a PWM signal, and the linkage power supply control circuit is a TRIAC dimming circuit. and the detection unit includes a human body sensor and/or an illumination sensor, the human body sensor senses human activity information, the illumination sensor senses the intensity of ambient light for illumination detection, and the MCU control circuit is based on the received human body activity information, and/or Ambient light intensity information generates a sub-unit control signal to adjust the sub-unit; and, the detection part includes a control mode selection switch, and the mode selection switch selects one of the multiple control modes preset in the parent-child lighting device, and the MCU The control circuit generates a sub-machine control signal to regulate the sub-machine based on the control mode selected by the control mode selection switch.

The present invention also provides a control method for a mother-to-child lighting device. The mother-to-child lighting device using the control method includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The linkage power supply control circuit of the machine, the human body sensor and the illuminance sensor are arranged in the detection part, and the control method includes the following steps:

S1: The human body sensor and the illuminance sensor detect information about the intensity of ambient light and whether there is human activity information, and send the detected detection information to the MCU control circuit;

S2: The MCU control circuit receives the detection information sent by the detection unit, and compares the detected ambient light intensity information with the preset light threshold;

S3: If human body activity information is detected and the detected ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a message corresponding to the detected detection information to the linked power supply control circuit. The corresponding sub-machine control signal, the linkage power supply control circuit adjusts the sub-machine according to the sub-machine control signal, and controls the sub-machine to light up with the corresponding preset brightness and preset duration;

S4: If the ambient light intensity information is greater than the set light threshold, the handset is not turned on.

The present invention also provides a control method for a mother-to-child lighting device. The mother-to-child lighting device using the control method includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The linkage power supply control circuit of the machine, the detection part is provided with a light sensor, the control method includes the following steps:

S1: The illuminance sensor detects the ambient light intensity information, and sends the detected detection information to the MCU control circuit;

S2: The MCU control circuit receives the detection information sent by the detection unit, and compares the detected ambient light intensity information with the preset light threshold;

S3: If the detected ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a slave control signal corresponding to the detected information to the linkage power supply control circuit, and the linkage The power control circuit adjusts the sub-machine according to the control signal of the sub-machine, and controls the sub-machine to light up with the corresponding preset brightness and preset duration;

S4: If the detected ambient light intensity information is greater than the set light threshold, the handset is not turned on.

The present invention also provides a control method for a mother-to-child lighting device. The mother-to-child lighting device using the control method includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The linkage power supply control circuit of the machine, the human body sensor is arranged in the detection part, and the control method includes the following steps:

S1: The human body sensor detects whether there is human body activity information, and sends the detected human body activity information to the MCU control circuit;

S2: If human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, and sends a sub-machine control signal corresponding to the detected human body activity information to the linked power supply control circuit, and the linked power supply control circuit according to the sub-machine control signal Adjust the sub-machine to control the corresponding preset brightness and preset duration of the sub-machine.

The present invention also provides an intelligent lighting system, which includes any parent-child lighting device provided by the present invention.

According to the technical solution of the present invention, based on the LED dimming technology, the purpose of flexibly adjusting the brightness of the lighting device is realized by using the built-in MCU control circuit (microcontroller) and TRIAC circuit of the lighting device itself.

Furthermore, according to the technical solution of the present invention, according to the human body activity information sensed by the human body sensor installed on the main machine and the ambient light illuminance information sensed by the ambient light sensor, the lighting of the sub-unit can be turned on/off and the sub-unit can be controlled in a linked manner. The brightness adjustment of the main machine can fully realize energy saving according to information such as natural light/occupancy, thereby reducing energy consumption and prolonging the corresponding service life of lighting fixtures.

Description of drawings

Fig. 1 is a schematic diagram of a circuit structure of a parent-child lighting device according to the present invention.

FIG. 2 is a schematic structural diagram of the detection unit in FIG. 1 .

Fig. 3(a) is the voltage waveform applied to the child unit in the parent-child lighting device in the prior art.

Fig. 3(b) is a voltage waveform applied to the child unit based on PWM control in the parent-child lighting device according to the present invention.

Figure 4(a) and Figure 4(b) are schematic diagrams of the multi-stage dimming of the sub-machine.

detailed description

The present invention uses a microcontroller (MCU control circuit) to generate PWM signals with different duty ratios, so as to realize the adjustment of the output light of LED master-child lighting equipment. When receiving the detection information result corresponding to the set control mode, the MCU control circuit generates a PWM signal according to the corresponding dimming demand, and sends the PWM signal to the TRIAC circuit, and uses the TRIAC circuit to control the lighting device Dimming of sub-units in . The input voltage value obtained by the sub-machine from the AC power supply is determined by the conduction time of the TRIAC circuit. If the conduction time is long, the effective input voltage will increase. On the contrary, if the conduction time is short, the effective input voltage will decrease. Changes in voltage to achieve the purpose of adjusting the brightness of lamps.

Fig. 1 is a schematic diagram of a circuit structure of a parent-child lighting device according to the present invention.

As shown in Figure 1, the mother-to-child lighting device includes an AC power supply 1, a master unit 2, a slave unit 3, a TRIAC (triac triac) circuit 4 (linked power supply control circuit 4), an MCU control circuit 5, and a detection unit 6 (not shown), main machine load 7. Ports N and L in the figure are the interface pins of the mains, LOD0, N0 and LOD3, N3 are the connection pins of the master unit and slave unit. The sub-machine may be multiple sub-machines. The parent-child lighting device also includes a master power control circuit (not shown). As shown in Figure 1, the AC power supply 1 is connected to the N5 and L5 terminals of the main machine 2 through the connection terminals N2 and L2 of the circuit breaker 12, and connected to the rectifier circuit U2 through the fuse unit FUSE1, so as to supply DC power to the main machine load 7 . The sub-machine 3 (the sub-machine circuit may include one or more, such as 1-4 sub-machines) is connected to the N0 and LOD0 terminals of the main machine 2 through the N3 and LOD3 terminals, and the N0 terminal is connected to the N5 of the main machine 2 through the fuse unit FUSE2 The terminals are connected.

The interlocking power supply control circuit 4 (ie, the aforementioned TRIAC circuit 4 ) receives the PWM signal sent by the MCU control circuit 5 , and adjusts the slave machine 3 according to the PWM signal. The linked power supply control circuit 4 is composed of an optocoupler U1, resistors R1, R2, capacitor C1 and a triac Q1, the terminal 13 of the thyristor Q1 is connected to one end of the fuse unit FUSE1 connected to the rectifier circuit U2, and connected to the resistor R1, C capacitor 1, the resistor R1, C capacitor 1 form an anti-interference circuit to connect the trigger terminal G of the thyristor Q1 and terminal 13 to ensure the stable operation of the bidirectional thyristor Q1, and the primary side of the optocoupler U1 is connected to the circuit The PWM signal terminal output by the MCU control circuit 5 outside the board 12 and the light-emitting side of the optocoupler U1 are respectively connected to the trigger terminal G of the thyristor and connected to the terminal 14 and LOD0 of the thyristor through a resistor R2.

The power supply path from AC power source 1 to slave unit 3 is:

母机的L5端子

FUSE1

TRIAC电路

LOD0

子机的L端子

子机的N端子

FUSE2

AC电源的N端子。L terminal of AC power supply

L5 terminal of the parent machine

FUSE1

TRIAC circuit

LOD0

L terminal of the handset

N terminal of the slave

FUSE2

N terminal of AC power supply.

The slave machine is set in the living room or the master bedroom, and the master machine is set in a position different from that of the slave machine, such as at the door of the house or in the yard.

FIG. 2 is a schematic structural diagram of the detection unit 6 in FIG. 1 .

As shown in FIG. 2 , the detection unit 6 includes a human body sensor 9 , an illumination sensor 10 , and a rotary switch 11 , and the detection unit 6 can be used to detect human body activity and light illumination information around the main machine.

The human body sensor 9 is used to detect and sense human body activity information, and the illuminance sensor 10 senses the intensity of ambient light to perform illuminance detection to determine the intensity of the surrounding ambient light. The above-mentioned detected human body activity information and ambient light intensity information will be used as The basis for sub-machine dimming.

The user selects the control mode through the setting position of the preset rotary switch 11, combined with the human body sensor 9 and/or light intensity sensor 10 in the detection part 6, the MCU control circuit 5 detects the human body activity information and/or the environment according to the detection part 6 Light intensity information, send preset PWM signals with different duty ratios to the TRIAC circuit 4, control the sub-lamps to operate according to the preset corresponding control modes, and perform lighting, extinguishing, and/or dimming operations, and can be set Fixed continuous lighting time to achieve richer segmental dimming. The continuous lighting time is preset by the preset software. The rotary switch 11 can also be replaced by a touch panel or selection buttons.

In a preferred embodiment, the human body sensor 9 is an infrared sensor, which uses thermal infrared radiation generated by humans to generate electrical signals.

As shown in Figures 1 and 2, the detection unit 6 will detect the human body activity information detected by the human body sensor 9, and/or the ambient light intensity information detected by the light sensor 10, and the setting mode (setting position) of the rotary switch 11. ) is sent to the MCU control circuit 5. The MCU control circuit 5 sends a PWM (pulse width modulation) signal to the TRIAC circuit 4 according to the human body activity information and/or the ambient light intensity information sent by the detection unit 6, in combination with the setting mode of the rotary switch 11, so that the TRIAC circuit 4. Perform ON/OFF action, so as to realize the dimming control of the slave machine 3. Therefore, according to, for example, the detected external lumen value and human body activity information, the sub-machine can be appropriately dimmed to reduce the output of the sub-machine.

The MCU control circuit 5 also sends a master machine control signal corresponding to the detection information to the master machine power control circuit (not shown), and adjusts the master machine according to the master machine control signal.

The dimming of the sub-unit includes at least one operation of turning on the sub-unit, turning off the sub-unit, adjusting the brightness of the sub-unit, and controlling the lighting time of the sub-unit.

The dimming of the main machine includes at least one operation of turning on the main machine, turning off the main machine, adjusting the brightness of the main machine, and controlling the lighting time of the main machine.

In a preferred embodiment, the slave unit is a lamp in phase dimming mode. When the TRIAC circuit 4 performs the ON/OFF action, the sub-machine dims and lights, that is, reduces the brightness, such as 25%, and when the TRIAC circuit 4 maintains the ON action, the sub-machine 100% FULL lights up, and when the TRIAC circuit 4 maintains In the OFF state, the handset is in the off state. Of course, you can also choose a simple ON/OFF type of lamp as a slave lamp.

Fig. 3(a) is the voltage waveform applied to the child unit in the parent-child lighting device in the prior art.

As shown in Figure 3(a), the MCU control circuit outputs the ON/OFF signal to the TRIAC circuit. Under the OFF signal control state, the AC power supplies a complete AC power to the sub-machine through the TRIAC circuit, and the brightness of the sub-machine is 100%. In the ON signal control state, the TRIAC circuit is OFF, so that the AC power supply will not apply voltage to the sub-machine, so the sub-machine is in a light-off state, and the brightness is 0%.

Fig. 3(b) is a voltage waveform applied to the child unit based on PWM control in the parent-child lighting device according to the present invention.

Firstly, in the first stage, the MCU control circuit 5 does not output the PWM control signal pulse, and this stage is the same as that shown in FIG. 3( a ), so it will not be repeated here.

In the second stage, the MCU control circuit 5 outputs a series of PWM control signal pulses, and uses these pulse signals to control the TRIAC circuit 4 . The PWM control signal pulses with different period ratios can make the conduction time of the TRIAC circuit 4 different, so that the effective value of the voltage applied to the sub-unit by the AC power supply 1 is different, thereby realizing the dimming of the sub-unit. In other words, by modulating the width of the control signal pulse, the TRIAC circuit 4 adjusts the conduction angle (ON period) and changes the effective voltage value applied to the sub-unit, thereby changing the brightness of the sub-unit to achieve richer segmentation Dimming.

According to a preferred embodiment of the parent-child lighting device of the present invention, the slave units in the parent-child lighting device are mainly used to realize segmental dimming, for example, only light up 25% or 30%. On the premise of ensuring the action of the TRIAC circuit 4 , more segmental dimming can also be set.

When the human body sensor 9 in the detection part 6 detects that there is a person, the MCU control circuit 5 can give a low-level signal to light up all the lights of the sub-machine, and when no person is detected, and a certain preset is satisfied. condition, the MCU control circuit 5 gives a PWM signal to perform segmental dimming, for example, only 25% of the light is turned on. When the MCU control circuit 5 gave a high level signal, the slave machine went out.

The MCU control circuit 5 can realize segmental dimming according to the ambient light intensity information detected by the light intensity sensor 10 in the detection unit 6 . For example, when it is detected that the ambient light is very dark (for example, the ambient brightness is less than 5 lx), the PWM signal sent by the MCU control circuit 5 to the TRIAC circuit 4 is 40% duty cycle. When it is detected that the ambient light is dark (for example, when the ambient brightness is greater than 25lx), the PWM signal sent by the MCU control circuit 5 to the TRIAC circuit 4 is 25% duty cycle.

Combined with the human body sensor 9 and the light intensity sensor 10 in the detection unit 6 , the MCU control circuit 5 can realize segmental dimming according to the human body activity information and the ambient light intensity information detected by the detection unit 6 . For example, when a person is detected and the ambient brightness is 50 lx, the PWM signal sent by the MCU control circuit 5 to the TRIAC circuit 4 has a duty cycle of 40%. When it is detected that the ambient brightness is 100 lx, the PWM signal sent by the MCU control circuit 5 to the TRIAC circuit 4 is 25% duty cycle.

Fig. 4(a) and Fig. 4(b) are schematic diagrams of examples of two dimming levels of the multi-stage dimming of the slave unit. As shown in Figures 4(a) and 4(b), according to the difference in the PWM control signal sent from the MCU control circuit 5 to the TRIAC circuit 4, the voltage waveforms of the sub-machines are different, and different dimming levels can be generated.

Preferably, the MCU control circuit 5 also sends a PWM master control signal corresponding to the detection information to the master power control circuit (not shown), and adjusts the master according to the master control signal.

In the present invention, for the slave machine, the MCU control circuit 5 sends PWM signals with different cycle ratios to the TRIAC circuit 4, so that the conduction time of the TRIAC circuit 4 is different, thereby realizing phase dimming, while the master machine is By sending a PWM signal to the power control circuit of the main machine, the dimming of the main machine is realized. At this time, the duty cycle of the PWM signal sent to the slave unit and the master unit may be different, and can be set according to the FULL lighting current and the segment dimming current.

Specifically, for example, the control port of the master machine is 17pin, and the control port of the slave machine is 22pin. The MCU control circuit 5 sends PWM signals to the control port of the 17pin and the control port of the 22pin respectively, and sends them to the control port of the 17pin respectively. The PWM signal of the port is different from the PWM signal sent to the 22pin control port. For example, the duty cycle of the two is different, because for example, in the full light mode, the current of the main unit is 200mA, and the current of the sub unit is 160mA. In order to meet their respective dimming characteristics, the PWM signals of the main unit and the sub unit need to be different.

Regarding the "control mode" involved in the present invention, it will be explained as follows in conjunction with Table 1.

In Table 1, there are a total of 9 control modes of modes 0-8. When the user selects a certain mode by adjusting the position of the rotary switch 11, then according to the corresponding conditions in the mode listed in Table 1 , select whether it belongs to the "Welcome Home Mode", if it belongs to the "Welcome Home Mode", it corresponds to the preset duration of the Welcome Home Mode. Then, based on the selected control mode, combined with the human body activity information and/or ambient light intensity information detected by the human body sensor 9 and/or the illuminance sensor 10, the parent-child lighting device will send a signal with different duty ratios to the TRIAC circuit 4. PWM signal to control the sub-lamps to perform lighting, extinguishing, and/or dimming actions.

Among them, when the duration of the "welcome home mode" is 4 hours, as shown in control mode 1, it means that after the user selects this control mode, the time to go home from the system preset (for example, 8 o'clock in the evening) Four hours after the start, that is, until 12 o'clock in the evening, the mother-child lighting devices will work under the "welcome home mode".

In addition, in Table 1, the "leaving home mode" in control mode 8 refers to when the user leaves home, he knows that he will not return home that night or within a certain number of days, and he does not want the handset to be affected by other control modes during the time away from home. When the settings are set to light up automatically according to the detection results, the "away from home mode" is selected so that the MCU control circuit 5 ignores the detected illuminance information and human body activity information, and the master lamp and the child lamp will always remain in the extinguished state, and will not be caused by detection. Lights up for the detection result of the part.

In addition, although it is not listed in Table 1, in a preferred embodiment, another "leaving home mode" can also be included. At this time, the system will preset the time to leave home, such as 8 o'clock in the morning on weekdays, In the case where the "Away from Home Mode" is set to 9 hours, then until 5 o'clock in the evening, the child and mother lighting devices will all work in the "Away from Home Mode". In the "away from home mode", it is set to ignore the detected illuminance information and human activity information, so even when the light is temporarily dimmed due to cloudy days or other situations that may easily cause false detection of human activity information, the sub-light And the mother lamp will not light up because of these detection results. Instead, it will switch to normal "welcome home mode" or other modes after the stipulated 9 hours.

At least one control mode in the present invention may be: detecting information on the intensity of ambient light and whether there is human activity information, the MCU control circuit compares the information on the intensity of ambient light with a preset light threshold, and if a human body is detected activity information, and the ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a slave control signal corresponding to the detection information to the TRIAC circuit , controlling the sub-phone to light up with a corresponding preset brightness and preset duration, and if the ambient light intensity information is greater than the set light threshold, the sub-phone is not turned on.

In addition, at least one control mode of the present invention may be as follows: detecting ambient light intensity information, and the MCU control circuit compares the ambient light intensity information with a preset light threshold, no matter whether human body activity information is detected, if If the value of the ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a slave control signal corresponding to the detection information to the TRIAC circuit, and controls the slave The handset is turned on for a corresponding preset brightness and duration, and if the ambient light intensity value is greater than the set light threshold, the handset is not turned on.

In addition, the at least one control mode may be: detecting whether there is human body activity information, as long as the human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, and sends the detected information to the TRIAC circuit. The sub-machine control signal corresponding to the information controls the sub-machine to light up with the corresponding preset brightness and preset duration.

Table 1 is a specific embodiment of a sub-light intelligent control setting mode with a welcome home mode and a home away mode.

As shown in Table 1, according to the preset position of the 9-stage setting position of the rotary switch 11, combined with the brightness and darkness of the ambient light intensity information, and whether the human body sensor 9 detects the human body activity information, the parent-child lighting device of the present invention has the following types: Control mode:

Control mode 0: "Welcome home mode" is not included in this control mode. When the position of the rotary switch 11 is "0", if the human body sensor 9 detects human body activity information, and the ambient light intensity information is less than 5lx, the MCU control circuit 5 gives a low-level signal, and the main machine and the linkage All sub-units are 100% lit, and after maintaining the lighting (ON) for 1 minute, if no human activity information can be detected, the main unit and the linked sub-units are all extinguished (OFF). Because the human body sensor 9 continuously detects whether there is human body activity information, so after the main machine and the linked slave machine maintain 100% lighting for 1 minute, if the human body activity information can still be detected, then continue to maintain 100% lighting for 1 minute. This cycle continues until no human body activity information can be detected after the 100% lighting is maintained for 1 minute, and the main unit and the linked sub-units are all extinguished (OFF). The child-mother lighting device after extinguishing will also be 100% lit again when the human body sensor 9 detects the human body activity information again.

If the human body sensor 9 detects human body activity information, but the ambient light intensity information is greater than 5lx, then the main machine and the linked sub-machines all remain in the extinguished state;

Control Mode 1: This mode includes “Welcome Home Mode”. The welcome home mode is set for 4 hours. The operation of this control mode requires the sensing information of the light sensor 10 and the sensing information of the human body sensor 9 . When the selected position of the rotary switch 11 is "1", if the ambient light intensity information is less than 5 lx, the MCU control circuit 5 sends a PWM signal with a duty cycle of 25% to the TRIAC circuit 4, and the master machine and the linked slave machines are all 30% light (ON) and continue to maintain, if at any time within 4 hours of the "welcome home mode" set time, human body sensor 9 detects human body activity information, then MCU control circuit 5 gives low power Level signal, the main unit and the linked sub-unit are turned on from 30% to 100%, and after maintaining 100% for 1 minute, if human activity information can still be detected, continue to maintain 100% for 1 minute, if continuous If no human activity information is detected after lighting up for 1 minute, then the MCU control circuit 5 sends a PWM signal with a duty cycle of 25% to the TRIAC circuit 4, dimming the main unit and the linked sub-units to 30% and lighting up until "" Welcome Home Mode" until the end of the 4-hour period.

When the 4 hours specified in the "Welcome Home Mode" end, the child-mother lighting device exits the "Welcome Home Mode", regardless of the detection results of the illuminance sensor 10 and the human body sensor 9, the master unit and the linked slave units remain off state (OFF).

Control Mode 2: This control mode includes “Welcome Home Mode”. The welcome home mode is set for 8 hours. The operation of this control mode is based on the sensing information of the light sensor 10 and the sensing information of the human body sensor 9 . When the selected position of the rotary switch 11 is "2", if the ambient light intensity information is less than 5 lx, the PWM signal sent by the MCU control circuit 5 to the TRIAC circuit 4 is a 25% duty cycle, then the master machine and the linked slave machines are all 30% lighting (ON) and continuous maintenance, if at any time within the 8 hours set by the "welcome home mode", the human body sensor 9 detects human body activity information, then the MCU control circuit 5 gives a low power Level signal, the main unit and the linked sub-units are turned on from 30% to 100%, and after maintaining 100% lighting for 1 minute, if human activity information can still be detected, continue to maintain 100% lighting for 1 minute. If no human activity information is detected after the lighting is turned on, the MCU control circuit 5 sends a PWM signal with a duty cycle of 25% to the TRIAC circuit 4, dimming the main unit and the linked sub-units to 30% and lighting them up until "Welcome" Go home mode" until the end of the 8 hours.

When the 8 hours specified in the "Welcome Home Mode" end, the child-mother lighting device exits the "Welcome Home Mode", and regardless of the detection results of the illuminance sensor 10 and the human body sensor 9, the master unit and the linked slave units remain off state (OFF).

Control mode 3: "Welcome home mode" is not included in this control mode. When the rotary switch 11 selects the position as "3", if the human body sensor 9 detects human body activity information, and the ambient light intensity information is less than 25lx, the MCU control circuit 5 gives a low-level signal, and the main machine and the linkage All sub-units are 100% lit, and after maintaining the lighting (ON) for 1 minute, if no human activity information can be detected, the main unit and the linked sub-units are all extinguished (OFF). Because the human body sensor 9 continuously detects whether there is human body activity information, so after the main machine and the linked slave machine maintain 100% lighting for 1 minute, if the human body activity information can still be detected, then continue to maintain 100% lighting for 1 minute. This cycle continues until no human body activity information can be detected after the 100% lighting is maintained for 1 minute, and the main unit and the linked sub-units are all extinguished (OFF). The child-mother lighting device after extinguishing will also be 100% lit again when the human body sensor 9 detects the human body activity information again.

If the human body sensor 9 detects the human body activity information, but the ambient light intensity information is greater than 25 lx, then the master machine and the linked slave machines all remain in the extinguished state.

Control Mode 4: This control mode includes “Welcome Home Mode”. The welcome home mode is set for 4 hours. The operation of this control mode is based on the sensing information of the light sensor 10 and the sensing information of the human body sensor 9 . When the rotary switch 11 selects the position as "4", if the ambient light intensity information is less than 25 lx, the MCU control circuit 5 sends a PWM signal with a duty ratio of 15% to the TRIAC circuit 4, and the master machine and the linked slave machines are all 20% light (ON) and continue to maintain, if at any time within 4 hours of the "welcome home mode" set time, the human body sensor 9 detects human body activity information, then the MCU control circuit 5 gives a low power Level signal, the main unit and the linked sub-units are turned on from 20% to 100%, and after maintaining 100% lighting for 1 minute, if human activity information can still be detected, continue to maintain 100% lighting for 1 minute. If no human activity information is detected after lighting up for 1 minute, then the MCU control circuit 5 sends a PWM signal with a duty cycle of 15% to the TRIAC circuit 4, dimming the master unit and the linked sub-units to 20% and lighting up until "" Welcome Home Mode" until the end of the 4-hour period.

When the 4 hours specified in the "Welcome Home Mode" end, the child-mother lighting device exits the "Welcome Home Mode", regardless of the detection results of the illuminance sensor 10 and the human body sensor 9, the master unit and the linked slave units remain off state (OFF).

Control Mode 5: This control mode includes “Welcome Home Mode”. The welcome home mode is set for 8 hours. The operation of this control mode is based on the sensing information of the light sensor 10 and the sensing information of the human body sensor 9 . When the rotary switch 11 selects the position as "5", if the detected ambient light intensity information is less than 25 lx, the MCU control circuit 5 sends a PWM signal with a duty cycle of 15% to the TRIAC circuit 4, and the master machine and the linked slave The average 20% of the machine lights (ON) and continues to maintain. If at any time within the 8 hours set by the "welcome home mode", the human body sensor 9 detects human body activity information, and the MCU control circuit 5 gives Low-level signal, the main unit and the linked sub-unit are turned on from 20% to 100% and after maintaining 100% for 1 minute, if human activity information can still be detected, continue to maintain 100% for 1 minute. If no human body activity information is detected after lighting the lamp for 1 minute, the MCU control circuit 5 sends a PWM signal with a duty cycle of 15% to the TRIAC circuit 4, dimming the master unit and the linked sub-units to 20% and keeping the lights on. Until the end of the 8 hours specified in the "Welcome Home Mode".

When the 8 hours specified in the "Welcome Home Mode" end, the child-mother lighting device exits the "Welcome Home Mode", and regardless of the detection results of the illuminance sensor 10 and the human body sensor 9, the master unit and the linked slave units remain off state (OFF).

Control Mode 6-7: This control mode does not include "Welcome Home Mode". When the rotary switch 11 selects any one of "6" and "7", no matter the environment is bright or dark, as long as human body activity information is detected, the MCU control circuit 5 sends a low-level signal to the TRIAC circuit 4, so that the master machine and the linked The sub-machines are all 100% lit (ON). After maintaining 100% lighting for 5 seconds, if the human body activity information cannot be detected, the MCU control circuit 5 will give a high-level signal, and the main machine and the linked sub-machines are all extinguished (OFF). .

Because the human body sensor 9 continuously detects whether there is human body activity information, so after the main machine and the linked slave machine maintain 100% lighting for 5 seconds, if the human body activity information can still be detected, then continue to maintain 100% lighting for 5 seconds . This cycle continues until no human body activity information can be detected after the 100% lighting is maintained for 5 seconds, and the main unit and the linked sub-units are all extinguished (OFF). After the child-mother lighting device is extinguished, it will also be 100% lighted again when the human body sensor 9 detects the human body activity information again, and so on.

Control mode 8: This control mode has been described before, and will not be repeated here.

Table 1

In combination with Table 1 above, each control mode of the embodiment of the present invention has been described, but it should be noted that each numerical value in the embodiment of the present invention is only an example. Parameters such as signal duty cycle and maintenance lighting time do not constitute limitations to the present invention, but can be appropriately adjusted and changed according to the circuit optimization design of the parent-child lighting device and the needs of product users.

According to the technical solution of the present invention, based on the LED dimming technology, the purpose of continuously and stably adjusting the brightness of the lighting device can be realized by using the built-in MCU control circuit (microcontroller) 5 and TRIAC circuit 4 of the lighting device itself.

Furthermore, according to the technical solution of the present invention, it is possible to control the turning on/off of the lighting of the sub-machine according to the human body activity information sensed by the human body sensor installed on the main machine and the ambient light illuminance information sensed by the ambient light sensor installed on the main machine. , and the brightness adjustment of the sub-machine can fully realize energy saving according to information such as natural light/people, thereby reducing energy consumption and prolonging the corresponding service life of lighting fixtures.

Those of ordinary skill in the art can understand that in the foregoing implementation manners, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the above-mentioned embodiments, the technical solution claimed in each claim of the present application can be basically realized. Therefore, in practice, various changes may be made to the above-described embodiments in form and detail without departing from the spirit and scope of the present invention.

Claims (22)

1. A mother-to-child lighting device, comprising a master unit, at least one slave unit, and a master unit power control circuit, characterized in that, the master unit is also provided with a detection unit, an MCU control circuit, and a linked power supply control circuit for controlling the slave units. The detection unit detects the peripheral information of the main machine, and sends the detected detection information to the MCU control circuit, and the MCU control circuit receives and recognizes the detection information sent by the detection unit, and sends the detection information corresponding to the detection information to the main machine power control circuit. The corresponding master machine control signal sends a slave machine control signal corresponding to the detection information to the linkage power supply control circuit, the duty ratio of the master machine control signal and the slave machine control signal is different, and the master machine power control signal The circuit and the linked power supply control circuit adjust the master machine and the slave machine respectively according to the control signal of the master machine and the control signal of the slave machine; The detection part includes a control mode selection switch, the mode selection switch selects one of the multiple control modes preset in the parent-child lighting device, and the MCU control circuit is based on the control mode selected by the control mode selection switch. The selected control mode generates a sub-machine control signal to adjust the sub-machine, and controls the sub-machine to light up with a corresponding preset brightness and preset duration. 2. The parent-child lighting device according to claim 1, characterized in that, The sub-machine control signal is a PWM signal, the linked power supply control circuit is a TRI AC dimming circuit, and the TRIAC dimming circuit adjusts the sub-machine by changing the voltage applied to the sub-machine; The detection unit includes a human body sensor and/or an illumination sensor, the human body sensor senses information on human body activity, the illumination sensor senses the intensity of ambient light to perform illumination detection, and the MCU control circuit is based on the received human body activity information, and /or the ambient light intensity information generates a sub-machine control signal to adjust the sub-machine. 3. The parent-child lighting device according to claim 2, characterized in that, Adjusting the sub-machine according to the sub-machine control signal includes at least one operation of turning on the sub-machine, turning off the sub-machine, adjusting the brightness of the sub-machine, and controlling the lighting time of the sub-machine. 4. The parent-child lighting device according to any one of claims 1-3, characterized in that, The slave unit is a phase dimming mode lamp. 5. The parent-child lighting device according to claim 1, characterized in that, Adjusting the base machine according to the control signal of the base machine includes at least one operation of turning on the base machine, extinguishing the base machine, adjusting the brightness of the base machine, and controlling the lighting time of the base machine; The master machine control signal is a PWM signal. 6. The parent-child lighting device according to claim 2, characterized in that, The mode selection switch is a rotary switch, and the human body sensor is an infrared sensor. 7. The parent-child lighting device according to claim 2, characterized in that, At least one of the control modes is: detecting ambient light intensity information and whether there is human activity information, the MCU control circuit compares the ambient light intensity information with a preset light threshold, and if human activity information is detected, and the ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a slave control signal corresponding to the detection information to the linked power supply control circuit, Control the sub-machine to light up with the corresponding preset brightness and preset duration. 8. The parent-child lighting device according to claim 2, characterized in that, At least one of the control modes is: detecting ambient light intensity information, the MCU control circuit compares the ambient light intensity information with a preset light threshold, and if the ambient light intensity information is within the set light threshold , the MCU control circuit adjusts the PWM value according to the preset information, sends a sub-machine control signal corresponding to the detection information to the linked power supply control circuit, and controls the sub-machine to light up the corresponding preset brightness and preset brightness. duration. 9. The parent-child lighting device according to claim 2, characterized in that, At least one of the control modes is: detecting whether there is human body activity information, as long as the human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, and sends the detection information to the linked power supply control circuit The corresponding sub-machine control signal controls the sub-machine to light up with a corresponding preset brightness and preset duration. 10. A control method for a mother-to-child lighting device, the mother-to-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit for the master unit, and the master unit is also provided with a detection unit, an MCU control circuit, and a linkage to control the slave units Power supply control circuit, the detection part includes a control mode selection switch, the mode selection switch selects one of the multiple control modes preset in the parent-child lighting device, the MCU control circuit is based on the control The control mode selected by the mode selection switch generates a sub-machine control signal to adjust the sub-machine, and it is characterized in that the method includes the following steps: S1: the detection unit detects peripheral information of the base machine, and sends the detected detection information to the MCU control circuit; S2: The MCU control circuit receives and recognizes the detection information sent by the detection unit, sends a master control signal corresponding to the detection information to the master power control circuit, and sends the detection information to the linkage power control circuit The corresponding slave machine control signal, the duty ratio of the master machine control signal and the slave machine control signal is different; S3: The main machine power control circuit and the linked power supply control circuit respectively adjust the main machine and the child machine according to the control signal of the main machine and the control signal of the child machine. 11. The control method of the parent-child lighting device according to claim 10, characterized in that: The sub-machine control signal is a PWM signal, the linked power supply control circuit is a TRIAC dimming circuit, and the TRIAC dimming circuit adjusts the sub-machine by changing the voltage applied to the sub-machine; The detection unit includes a human body sensor and/or an illumination sensor, the human body sensor senses information on human body activity, the illumination sensor senses the intensity of ambient light to perform illumination detection, and the MCU control circuit is based on the received human body activity information, and /or the ambient light intensity information generates a sub-machine control signal to adjust the sub-machine. 12. The control method of the parent-child lighting device according to claim 10, characterized in that: Adjusting the sub-machine according to the sub-machine control signal includes at least one operation of turning on the sub-machine, turning off the sub-machine, adjusting the brightness of the sub-machine, and controlling the lighting time of the sub-machine. 13. The control method of the parent-child lighting device according to any one of claims 10-12, characterized in that, the slave unit is a phase-dimming mode lamp. 14. The control method of the parent-child lighting device according to claim 10, characterized in that: Adjusting the base machine according to the control signal of the base machine includes at least one operation of turning on the base machine, extinguishing the base machine, adjusting the brightness of the base machine, and controlling the lighting time of the base machine; The master machine control signal is a PWM signal. 15. The control method of the parent-child lighting device according to claim 11, characterized in that: The mode selection switch is a rotary switch, and the human body sensor is an infrared sensor. 16. The control method of the parent-child lighting device according to claim 10, characterized in that: In at least one of the control modes: detecting ambient light intensity information and whether there is human activity information, the MCU control circuit compares the ambient light intensity information with a preset light threshold, and if detected Human body activity information, and the ambient light intensity information is within the set light threshold value, the MCU control circuit adjusts the PWM value according to the preset information, and sends a signal corresponding to the detection information to the linked power supply control circuit The machine control signal controls the sub-machine to light up with the corresponding preset brightness and preset duration. 17. The control method of the parent-child lighting device according to claim 10, characterized in that: In at least one of the control modes: detecting ambient light intensity information, the MCU control circuit compares the ambient light intensity information with a preset light threshold, if the ambient light intensity information is set Within the predetermined light threshold, the MCU control circuit adjusts the PWM value according to the preset information, sends a sub-machine control signal corresponding to the detection information to the linked power supply control circuit, and controls the sub-machine to light up the corresponding preset Brightness and preset duration. 18. The control method of the parent-child lighting device according to claim 10, characterized in that: In at least one control mode of the control modes: detecting whether there is human body activity information, as long as the human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, and sends a message to the linked power supply control circuit related to the The sub-machine control signal corresponding to the detection information is used to control the sub-machine to light up with a corresponding preset brightness and preset duration. 19. A method for controlling a mother-to-child lighting device. The mother-to-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The master unit is also provided with a detection unit, an MCU control circuit, and a linkage of the slave units A power supply control circuit, the detection unit is provided with a human body sensor and an illuminance sensor, the detection unit includes a control mode selection switch, and the mode selection switch selects one of the various control modes preset in the parent-child lighting device One, the MCU control circuit generates a sub-machine control signal to adjust the sub-machine based on the control mode selected by the control mode selection switch, and it is characterized in that the method includes the following steps: S1: The human body sensor and the illuminance sensor detect information about the intensity of ambient light and whether there is human activity information, and send the detected detection information to the MCU control circuit; S2: The MCU control circuit receives the detection information sent by the detection unit, and compares the ambient light intensity information with a preset light threshold; S3: If human body activity information is detected, and the ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends a message related to the detection to the linked power supply control circuit. The sub-machine control signal corresponding to the information, the linked power supply control circuit adjusts the sub-machine according to the sub-machine control signal, and controls the sub-machine to light up with a corresponding preset brightness and preset duration; S4: If the ambient light intensity information is greater than the set light threshold, the handset is not turned on; According to the received detection information, the MCU control circuit also sends a master control signal corresponding to the detection information to the master power control circuit, and adjusts the master according to the master control signal, and the master control signal and The duty ratios of the slave control signals are different. 20. A method for controlling a mother-to-child lighting device. The mother-to-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit for the master unit. The master unit is also provided with a detection unit, an MCU control circuit, and a linkage to control the slave units. A power supply control circuit, the detection part is provided with an illumination sensor, the detection part includes a control mode selection switch, and the mode selection switch selects one of the multiple control modes preset in the parent-child lighting device. The MCU control circuit generates a sub-machine control signal based on the control mode selected by the control mode selection switch to adjust the sub-machine, and it is characterized in that the method includes the following steps: S1: The illuminance sensor detects the ambient light intensity information, and sends the detected detection information to the MCU control circuit; S2: the MCU control circuit receives the detection information sent by the detection unit, and compares the ambient light intensity information with a preset light threshold; S3: If the ambient light intensity information is within the set light threshold, the MCU control circuit adjusts the PWM value according to the preset information, and sends the sub-machine control corresponding to the detection information to the linked power supply control circuit signal, the linked power supply control circuit adjusts the sub-machine according to the sub-machine control signal, and controls the sub-machine to light up with a corresponding preset brightness and preset duration; S4: If the ambient light intensity information is greater than the set light threshold, the handset is not turned on; According to the received detection information, the MCU control circuit also sends a master control signal corresponding to the detection information to the master power control circuit, and adjusts the master according to the master control signal, and the master control signal and The duty ratios of the slave control signals are different. 21. A method for controlling a mother-to-child lighting device, the mother-to-child lighting device includes a master unit, at least one slave unit, and a power supply control circuit for the master unit, and the master unit is also provided with a detection unit, an MCU control circuit, and a linkage to control the slave units A power supply control circuit, the detection part is provided with a human body sensor, the detection part includes a control mode selection switch, and the mode selection switch selects one of the multiple control modes preset in the parent-child lighting device, so The MCU control circuit generates a sub-machine control signal based on the control mode selected by the control mode selection switch to adjust the sub-machine, and it is characterized in that the method includes the following steps: S1: The human body sensor detects whether there is human body activity information, and sends the detected human body activity information to the MCU control circuit; S2: If human body activity information is detected, the MCU control circuit adjusts the PWM value according to the preset information, and sends a slave control signal corresponding to the detected human body activity information to the linkage power supply control circuit, and the linkage The power control circuit adjusts the sub-machine according to the sub-machine control signal, and controls the sub-machine to light up with a corresponding preset brightness and preset duration; According to the received detection information, the MCU control circuit also sends a master control signal corresponding to the detection information to the master power control circuit, and adjusts the master according to the master control signal, and the master control signal and The duty ratios of the slave control signals are different. 22. An intelligent lighting system, characterized by comprising: The parent-child lighting device according to any one of claims 1-9.

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