CN116174964B - System for utilize infrared temperature measurement monitoring edge banding adjustment laser power - Google Patents
System for utilize infrared temperature measurement monitoring edge banding adjustment laser power Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000002844 melting Methods 0.000 claims abstract description 43
- 230000008018 melting Effects 0.000 claims abstract description 43
- 238000012216 screening Methods 0.000 claims description 39
- 238000001228 spectrum Methods 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 238000013507 mapping Methods 0.000 claims description 10
- 239000013598 vector Substances 0.000 claims description 10
- 238000007781 pre-processing Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000007688 edging Methods 0.000 claims 6
- 238000004861 thermometry Methods 0.000 claims 6
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a system for adjusting laser power by utilizing an infrared temperature measurement monitoring edge banding, which comprises an edge banding machine, a feedback control laser, an edge banding machine conveyor belt and an infrared temperature measurement device, wherein the system comprises: the detection module is used for determining the real-time temperature of the edge banding through an infrared temperature measuring device which is pre-configured at the joint of the edge banding; the infrared temperature measuring device can acquire real-time infrared detection temperatures under different infrared frequencies through different infrared emission powers; and a feedback detection module: the method comprises the steps of obtaining the intensity value of reflected light at the joint of the edge sealing strip, comparing the intensity value with the threshold value of the intensity of the light emitted by the melting rod, and judging the infrared light intensity difference; and a comparison module: the laser power adjusting device is used for comparing whether the infrared light intensity differences are the same under different infrared frequencies and adjusting the laser power when the infrared light intensity differences are the same; and when the infrared light intensity differences are different, infrared monitoring and alarming are carried out.
Description
Technical Field
The invention relates to the technical field of laser edge sealing, in particular to a system for adjusting laser power by utilizing an infrared temperature measurement monitoring edge sealing strip.
Background
At present, in the process of edge sealing, a laser edge sealing technology can be adopted, and the existing laser edge sealing equipment can judge the temperature generated during edge sealing through the operation parameters of a sensor or a laser heating device, so that edge sealing is realized.
However, the laser edge sealing device is limited by temperature detection and temperature judgment, and often has poor edge sealing effect due to different heating temperatures emitted by the laser device and the temperature actually required to be heated, so that if temperature equalization control is performed and accurate temperature detection is performed, further exploration is required.
Disclosure of Invention
The invention provides a system for adjusting laser power by utilizing an infrared temperature measurement monitoring edge sealing strip, which is used for the situation that laser edge sealing equipment is limited by temperature detection and temperature judgment and has poor edge sealing effect due to the fact that the heating temperature sent by a laser device is different from the temperature actually required to be heated.
The invention provides a system for adjusting laser power by utilizing an infrared temperature measurement monitoring edge banding, which comprises an edge banding machine, a feedback control laser, an edge banding machine conveyor belt and an infrared temperature measurement device, wherein the system comprises:
the detection module is used for determining the real-time temperature of the edge banding through an infrared temperature measuring device which is pre-configured at the joint of the edge banding; wherein,
The infrared temperature measuring device can acquire real-time infrared detection temperatures under different infrared frequencies through different infrared emission powers;
and a feedback detection module: the method comprises the steps of obtaining the intensity value of reflected light at the joint of the edge sealing strip, comparing the intensity value with the threshold value of the intensity of the light emitted by the melting rod, and judging the infrared light intensity difference;
And a comparison module: the laser power adjusting device is used for comparing whether the infrared light intensity differences are the same under different infrared frequencies, and adjusting the laser power when the infrared light intensity differences are different.
Further, the system further comprises:
an initial temperature acquisition module: the temperature value curve is generated by collecting temperature values of the edge banding joints at different moments;
a first screening module: the temperature value curve is used for presetting a first screening condition, and abnormal temperature detection is carried out on the temperature value curve based on the first screening condition, so that a monitoring temperature set at different moments is obtained;
and a second screening module: the method comprises the steps of presetting a second screening condition, and carrying out second screening on a monitoring temperature set based on the second screening condition to obtain a second screening set; wherein,
The second screening condition is obtained based on the average value of the first screening set;
A temperature limit setting module: and the method is used for acquiring an upper limit temperature value and a lower limit temperature value of the joint of the edge sealing strip based on the second screening set.
Further, the system further comprises:
the expected contrast module: the method comprises the steps of comparing the indoor environment temperature with a preset temperature to generate a temperature difference value;
And an adjusting module: the temperature difference value is compared with a preset threshold value, and an operation power adjusting instruction of the feedback control laser is generated;
The multi-frequency detection module: the control method is used for changing the feedback control laser operating power based on the PID control model through the operating frequency adjustment command.
Further, the system further comprises:
and a three-dimensional scanning module: the method comprises the steps of erecting a plurality of three-dimensional scanning devices on the periphery of the edge bonding machine, and obtaining point cloud coordinate data of an edge bonding scene through multiple scanning;
space building module: the method comprises the steps of constructing a global three-dimensional space of an edge sealing scene according to point cloud coordinate data;
And a position mapping module: the positioning device is used for positioning each edge sealing component according to the global three-dimensional space and determining the position mapping relation of different edge sealing devices;
and a target retrieval module: the method comprises the steps of clustering all edge sealing devices according to a position mapping relation, and constructing a target image retrieval tree of each edge sealing device;
dynamic supervision module: and the method is used for dynamically supervising different edge sealing equipment according to the target image retrieval tree and determining edge sealing steps.
Further, the feedback detection module: comprising the following steps:
Reflected light unit: the laser is used for acquiring infrared reflected light through feedback control to obtain first light intensity; wherein,
The infrared reflected light is the infrared edge sealing reflected light of the feedback control laser;
light emitting unit: the laser is used for acquiring the light emitted by the melting rod through feedback control to obtain second light intensity;
A light difference determination unit: and the light intensity deviation of the reflected light and the emitted light is judged according to the second light intensity and the first light intensity.
Further, the system further comprises:
The state acquisition module is used for: acquiring a system state of a feedback control laser;
wherein the system state includes a current emitted light intensity and an expected emitted light intensity;
The system characteristic amount calculating module: the method comprises the steps of inputting a system state into a pre-trained time sequence model, and obtaining a current system feature vector matched with the system state;
the time sequence model is used for outputting distinguishable system characteristic vectors corresponding to different light intensity feedback control;
The light intensity control output module: the system is used for obtaining and outputting corresponding light intensity control quantity according to the system state and the current system feature vector;
And a feedback module: the control device is used for executing an adjusting instruction of the light intensity control quantity and feeding the light intensity control quantity back to the time sequence model;
The expected judgment module: for returning to perform the operation of acquiring the system state of the feedback controlled laser until the current value of the light intensity of the feedback controlled laser reaches the desired light intensity.
Further, the system further comprises:
and a segmentation module: the method comprises the steps of acquiring a near infrared hyperspectral image of a sealing strip, selecting the near infrared hyperspectral images of the sealing strip under different frequencies, performing image processing, and dividing the target sealing strip according to the images;
and a gray level conversion module: the method comprises the steps of performing image processing and analysis on a gray level image of an edge banding, determining an image subarea representing the melting characteristic of the edge banding, and generating a gray level sub-image capable of representing the melting degree of the edge banding;
Spectral curve conversion module: the method comprises the steps of determining coordinates of each pixel point in a hyperspectral data cube aiming at a gray level sub-image capable of representing the melting degree of the edge banding, and taking the spectrum average spectrum of the points as a spectrum curve of the edge banding;
And a pretreatment module: the method comprises the steps of preprocessing a spectrum curve, determining a target wave band, and eliminating spectrum difference based on the target wave band;
And the melting degree detection module is used for: and the method is used for comparing and predicting the melting degree of the edge banding through the effective spectrum curve of the melting of the edge banding.
Further, the comparison module includes:
a data preprocessing unit: acquiring a plurality of infrared light data with different frequencies, and preprocessing the infrared light data to obtain an infrared light data set;
Curve conversion unit: the method comprises the steps of performing curve transformation on a plurality of first infrared light data according to the infrared light data to obtain a plurality of infrared curve data;
And a cycle comparison unit: the method is used for carrying out two-by-two cycle comparison on the infrared curve data of a plurality of different frequencies, and calculating the similarity between every two infrared curve data;
An adjusting unit: and obtaining the adjustment laser power according to the similarity between every two infrared curve data.
Further, the system further comprises:
and a temperature classification module: the temperature data acquisition module is used for acquiring temperature data under different infrared frequencies, dividing a plurality of temperature sections according to the different infrared frequencies, determining first infrared light difference data corresponding to the plurality of temperature sections, and generating a first difference sequence;
and a temperature processing module: the corresponding table is used for generating a first difference sequence under different infrared frequencies, acquiring corresponding second infrared light difference data under the same condition of different infrared frequencies, and generating a second difference sequence of the difference sequence;
And the monitoring and alarming module is used for: and the temperature alarm device is used for judging whether the temperature abnormality exists or not according to the first difference value sequence and the second difference value sequence, and carrying out temperature alarm.
Further, the system further comprises:
And the equipment data acquisition module is used for: the system is used for collecting comprehensive operation data of the edge bonding machine, the feedback control laser, the edge bonding machine conveyor belt and the infrared temperature measuring device;
and a marking module: the device is used for starting and marking different edge sealing equipment according to the comprehensive operation data;
and a dynamic adjustment module: and the power automatic adjustment mode is started when the feedback control laser is started according to the starting mark.
The invention has the beneficial effects that:
The invention can realize the dynamic monitoring of the temperature of the edge banding and determine the temperature information of the edge banding in real time. Through the real-time detection of banding temperature, based on the light difference of borrowing, confirm the real-time temperature of banding, carry out temperature regulation, guarantee the stability of banding temperature. The power of the feedback control laser is dynamically adjusted.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a system diagram of a system for adjusting laser power by using an infrared temperature measurement monitoring edge banding in an embodiment of the invention;
FIG. 2 is a diagram illustrating a feedback detection module according to an embodiment of the present invention;
FIG. 3 is a diagram showing the composition of the comparison module according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The invention provides a system for adjusting laser power by utilizing an infrared temperature measurement monitoring edge banding, which comprises an edge banding machine, a feedback control laser, an edge banding machine conveyor belt and an infrared temperature measurement device, wherein the system comprises:
the detection module is used for determining the real-time temperature of the edge banding through an infrared temperature measuring device which is pre-configured at the joint of the edge banding; wherein,
The infrared temperature measuring device can acquire real-time infrared detection temperatures under different infrared frequencies through different infrared emission powers;
The invention is innovative in that the real-time temperature of infrared detection under different infrared frequencies is obtained through different infrared emission powers, in the prior art, a sensor of infrared emission power with one frequency is usually used for temperature detection, in this case, the detected temperature cannot have great difference even if error of temperature detection exists, unless the error has influence on actual encapsulation effect, the encapsulation effect of the edge sealing strip on the conveyor belt is not good due to insufficient temperature, and the reason of the error of temperature judgment is because of inaccurate measurement. If a plurality of temperature sensing devices are arranged, the accuracy of temperature detection can be enhanced, but the space of a packaging point for product packaging on a conveyor belt is limited, and a plurality of temperature sensing devices cannot be arranged, and secondly, even if the plurality of temperature sensing devices are arranged, the temperature detection is inaccurate under the condition of power supply of different sensors due to different specifications and qualities; in order to solve the two technical problems, the invention provides a plurality of detection results of the same product under different infrared emission powers; in this case, very few variables occur.
And a feedback detection module: the method comprises the steps of obtaining the intensity value of reflected light at the joint of the edge sealing strip, comparing the intensity value with the threshold value of the intensity of the light emitted by the melting rod, and judging the infrared light intensity difference;
the feedback detection module is used for judging the infrared light intensity by comparing and calculating the reflected light of the contact point when the edge banding is packaged, and also represents the temperature of the packaging point after the edge banding is heated by laser, so that the feedback detection module has a more accurate temperature detection value, and therefore, whether the edge banding meets the specific temperature requirement of packaging can be judged through the infrared light intensity difference.
And a comparison module: the laser power adjusting device is used for comparing whether the infrared light intensity differences are the same under different infrared frequencies, and adjusting the laser power when the infrared light intensity differences are the same.
If the infrared light intensity differences of different infrared frequencies are the same, if the temperatures of the packaging points are the same at different frequencies, the infrared light intensity differences are the same, if the infrared light intensity differences are different, the detected temperatures at different frequencies are different, which means that laser power adjustment is needed, and therefore adjustment of the thermal melting temperature of the packaging strip is achieved.
The working principle of the technical scheme is as follows:
As shown in figure 1, the invention detects the temperature at the joint of the edge sealing strip by utilizing the infrared temperature, uses feedback to control the laser to work and detects the intensity value of reflected light at the joint of the edge sealing strip, compares the intensity value with the threshold value of the intensity of the light emitted by the melting rod, adjusts the laser power, can select the corresponding emissivity constant to carry out infrared temperature detection in different states, realizes the variable control of the emissivity of the infrared temperature sensor, adopts different emissivity to carry out infrared temperature detection, controls the working state of the laser, can realize the integration of a system, is beneficial to the space layout of the system, occupies smaller equipment, realizes the precise control of the state when the edge sealing strip, and further can realize the constant temperature control in the laser welding process.
The beneficial effects of the technical scheme are as follows:
The invention can realize the dynamic monitoring of the temperature of the edge banding and determine the temperature information of the edge banding in real time. Through the real-time detection of banding temperature, based on the light difference of borrowing, confirm the real-time temperature of banding, carry out temperature regulation, guarantee the stability of banding temperature. The power of the feedback control laser is dynamically adjusted.
As an embodiment of the present invention: the system further comprises:
an initial temperature acquisition module: the temperature value curve is generated by collecting temperature values of the edge banding joints at different moments;
a first screening module: the temperature value curve is used for presetting a first screening condition, and abnormal temperature detection is carried out on the temperature value curve based on the first screening condition, so that a monitoring temperature set at different moments is obtained;
and a second screening module: the method comprises the steps of presetting a second screening condition, and carrying out second screening on a monitoring temperature set based on the second screening condition to obtain a second screening set; wherein,
The second screening condition is obtained based on the average value of the first screening set;
A temperature limit setting module: and the method is used for acquiring an upper limit temperature value and a lower limit temperature value of the joint of the edge sealing strip based on the second screening set.
The working principle of the technical scheme is as follows:
The temperature of the edge sealing strip joint at each moment is kept the same as much as possible according to the hot melting effect, and the necessary temperature of the package is reached, so that the sealing performance of the package can be ensured. However, because the automated equipment may have unstable temperature control, for example, a temperature higher than the required hot melt temperature or a temperature lower than the required hot melt temperature, in this case, the present invention sets a screening condition through a temperature value curve, and screens an abnormal temperature through the screening condition: the abnormal temperature detection is carried out on the first screening condition, namely temperature value detection which does not accord with the hot melting temperature is carried out, the second screening condition is carried out on abnormal temperature which accords with the hot melting requirement but is far beyond or far below the hot melting temperature interval, and therefore the upper limit temperature and the lower limit temperature of a hot melting marked male are confirmed.
That is, when temperature detection is performed, a temperature value curve is generated, temperature screening is realized through abnormal temperature detection of the temperature, namely, a temperature set of free and natural normal temperatures is greatly achieved, and in the rest temperatures, a temperature screening set is obtained, and an upper limit temperature value and a lower limit temperature value of the temperature are determined.
The beneficial effects of the technical scheme are as follows: the invention can determine the upper limit value and the lower limit value of the temperature of the edge sealing strip in the melting process, and accurately judge the abnormality of the temperature and the interval setting of the temperature.
As an embodiment of the present invention: the system further comprises:
and a comparison module: the method comprises the steps of comparing the indoor environment temperature with a preset temperature to generate a temperature difference value;
And an adjusting module: the temperature difference value is compared with a preset threshold value, and an operation power adjusting instruction of the feedback control laser is generated;
The multi-frequency detection module: the control method is used for changing the feedback control laser operating power based on the PID control model through the operating frequency adjustment command.
The working principle of the technical scheme is as follows:
in the scheme, the indoor environment temperature is compared with the preset temperature, the preset temperature is a preset reference value of the indoor environment temperature, the temperature difference value represents the influence of the environment temperature on the heat dissipation efficiency of the edge banding strip during heating, the preset threshold value is an allowed environment temperature difference value, the frequency of the infrared temperature measuring device is adjusted to represent, and the feedback control laser operates under different power in the face of different environment temperatures, so that the same temperature of the edge banding strip joint point is ensured. The PID control model is used for adjusting the automatic power adjustment of the feedback control laser under different environment temperatures.
That is, temperature comparison can be performed, temperature difference is judged, power adjustment is performed on the feedback control laser according to the temperature difference, and the generated temperature is controlled. And realizes automatic hot melting temperature adjustment based on PID control.
The beneficial effects of the technical scheme are as follows: according to the invention, the temperature can be adjusted, so that the automatic adjustment of the temperature is realized, and the real-time melting temperature of the edge sealing strip is stabilized.
The invention also comprises the following steps in the PID control process:
Step 1: acquiring real-time operation data of a feedback control laser, and constructing an equipment operation state model:
Wherein k i represents a parameter value (any one of voltage, current and power) of the i-th type of operation data; y represents a device state parameter; w i represents the minimum reference value of the i-th class of operation data; i is e n; i is a positive integer; n represents the total amount of real-time operational data of the feedback controlled laser; when Y > 0, the running state of the equipment is shown as running;
step 2: when the equipment is running, acquiring a power value to be regulated according to a running power regulating instruction:
Wherein L i (t) represents the variation amplitude of the ith operating data at the moment t and the moment above the moment t; a i represents an i-th class of operational data adjustable parameter; mu 0 represents the deviation value of the power adjustment; q represents a desired adjustment desired power value; p represents the coefficient of the difference in power adjustment.
In the technical scheme, the equipment state operation model is firstly constructed, and the model is used for judging whether the feedback laser is in a starting state or not, if so, the power adjustment can be realized, and if not, the power adjustment can not be carried out, and any parameter of the feedback laser is a judging parameter for judging whether the feedback laser can be adjusted or not; the talking mode of step 2 is to calculate the power value to be regulated by the difference between the actual operating state and the expected operating state, P is the coefficient of the difference of the power regulation, and the power value can be converted into the difference by the coefficient.
As an embodiment of the present invention: the system further comprises:
and a three-dimensional scanning module: the method comprises the steps of erecting a plurality of three-dimensional scanning devices on the periphery of the edge bonding machine, and obtaining point cloud coordinate data of an edge bonding scene through multiple scanning;
space building module: the method comprises the steps of constructing a global three-dimensional space of an edge sealing scene according to point cloud coordinate data;
And a position mapping module: the positioning device is used for positioning each edge sealing component according to the global three-dimensional space and determining the position mapping relation of different edge sealing devices;
and a target retrieval module: the method comprises the steps of clustering all edge sealing devices according to a position mapping relation, and constructing a target image retrieval tree of each edge sealing device;
dynamic supervision module: and the method is used for dynamically supervising different edge sealing equipment according to the target image retrieval tree and determining edge sealing steps.
The working principle of the technical scheme is as follows:
The invention also constructs a three-dimensional space of the edge-sealed power supply when the edge is sealed by the edge-sealed strip, positions the edge-sealed components when the edge is sealed by the point cloud three-dimensional space, and has the functions of ensuring that each edge-sealed device accurately seals the edge when the edge is sealed by clustering and target image retrieval trees, ensuring that the edge-sealed step is accurate, realizing dynamic supervision and judging whether the edge-sealed step is wrong.
The three-dimensional scanning equipment can be used for acquiring point cloud coordinate data of the edge sealing according to the edge sealing scene when the edge sealing machine works, and then converting the point cloud coordinate data into a global three-dimensional space of the edge sealing scene. And then according to the position mapping relation of the edge sealing equipment, the edge sealing strip is searched, and further three-dimensional dynamic supervision of the edge sealing strip is realized.
The beneficial effects of the technical scheme are as follows: the invention can realize three-dimensional dynamic supervision and real-time monitoring of the whole temperature of the edge banding strip when the edge banding equipment performs edge banding.
As an embodiment of the present invention: the feedback detection module: comprising the following steps:
Reflected light unit: the laser is used for acquiring infrared reflected light through feedback control to obtain first light intensity; wherein,
The infrared reflected light is the infrared edge sealing reflected light of the feedback control laser, the light intensity is detected by the infrared temperature detection device, and the light intensity is fed back to the feedback control laser;
light emitting unit: the laser is used for acquiring the light emitted by the melting rod through the feedback control laser to obtain second light intensity, wherein the second light intensity is the light intensity of laser which is used for controlling the laser to apply the hot melting temperature to the edge sealing strip in real time through the feedback control laser.
The light difference determining module: the light intensity deviation is used for judging the light intensity deviation of the reflected light and the emitted light according to the second light intensity and the first light intensity, and the light intensity deviation is used for judging the deviation of the temperature which is actually needed to be reached and the actual temperature.
The working principle of the technical scheme is as follows: as shown in figure 2, when the invention performs feedback monitoring, the light intensity of infrared reflected light of the laser can be controlled by feedback to calculate the light intensity difference, and the temperature value of the edge sealing strip can be determined in real time through the light intensity difference.
The beneficial effects of the technical scheme are as follows: the invention can realize real-time temperature monitoring of the edge sealing strip by infrared light and judge the real-time melting temperature of the edge sealing strip.
As an embodiment of the present invention: the system further comprises:
The state acquisition module is used for: acquiring a system state of a feedback control laser;
wherein the system state includes a current emitted light intensity and an expected emitted light intensity;
The system characteristic amount calculating module: the method comprises the steps of inputting a system state into a pre-trained time sequence model, and obtaining a current system feature vector matched with the system state;
the time sequence model is used for outputting distinguishable system characteristic vectors corresponding to different light intensity feedback control;
The light intensity control output module: the system is used for obtaining and outputting corresponding light intensity control quantity according to the system state and the current system feature vector;
And a feedback module: the control device is used for executing an adjusting instruction of the light intensity control quantity and feeding the light intensity control quantity back to the time sequence model;
The expected judgment module: for returning to perform the operation of acquiring the system state of the feedback controlled laser until the current value of the light intensity of the feedback controlled laser reaches the desired light intensity.
The working principle of the technical scheme is as follows:
the time sequence model is used for matching the system state and the system characteristic vector of each time period, so as to adjust the laser intensity, thereby ensuring the stability of the light intensity.
That is, when the state control of the feedback control laser is performed, the system state conversion of the light intensity is performed according to the current emitted light intensity and the expected emitted light intensity, the light intensity control amount output in real time is determined through the conversion of the system state, the light intensity control amount is converted into a time sequence model at each moment, and the expected light intensity is determined through the time sequence model.
As an embodiment of the present invention: the system further comprises:
And a segmentation module: the method comprises the steps of acquiring a near infrared hyperspectral image of the edge banding, selecting images of the edge banding under different frequencies, performing image processing, and dividing the target edge banding according to the images;
and a gray level conversion module: the method comprises the steps of performing image processing and analysis on a gray level image of an edge banding, determining an image subarea representing the melting characteristic of the edge banding, and generating a gray level sub-image capable of representing the melting degree of the edge banding;
Spectral curve conversion module: the method comprises the steps of determining coordinates of each pixel point in a hyperspectral data cube aiming at a gray level sub-image capable of representing the melting degree of the edge banding, and taking the spectrum average spectrum of the points as a spectrum curve of the edge banding;
And a pretreatment module: the system is used for preprocessing a spectrum curve, determining a target wave band and eliminating spectrum difference melting based on the target wave band and comprises a detection module: and the method is used for comparing and predicting the melting degree of the edge banding through the effective spectrum curve of the melting of the edge banding.
The working principle of the technical scheme is as follows:
According to the invention, the infrared hyperspectral images of the edge banding can be obtained, the infrared hyperspectral images of the edge banding under different frequencies can be displayed, and the display images of a plurality of edge banding possibly exist in one infrared hyperspectral image, so that the technical segmentation of the target edge banding can be performed in an image segmentation mode. When the gray scale is converted, an image, which corresponds to each edge sealing strip and meets the requirement of target hot melting, namely an image subarea representing the melting characteristic of the edge sealing strip can be determined through the gray scale value, then a corresponding spectrum curve is generated through the gray scale subarea when the image is converted into the gray scale subarea, and the spectrum difference is eliminated through a stable wave band (target wave band) in the spectrum curve, namely an nonstandard spectrum curve is eliminated through the target wave band, or the actual spectrum curve is not met, so that the hot melting degree (melting degree) of each edge sealing strip is predicted.
The method comprises the steps of acquiring near infrared hyperspectral images in the edge sealing process, determining dynamic state display of real-time temperature of the edge sealing strip at different frequencies through image processing of the images at different frequencies, further calculating a spectrum curve of the edge sealing strip through gray five items of the edge sealing strip, calculating melting degree expectation of the edge sealing strip, and realizing dynamic melting of the edge sealing strip.
The beneficial effects of the technical scheme are as follows: the invention can realize the dynamic supervision of the melting degree of the edge banding, and judge the dynamic supervision of the real-time melting temperature of the edge banding.
As an embodiment of the present invention: the comparison module comprises:
a data preprocessing unit: acquiring a plurality of infrared light data with different frequencies, and preprocessing the infrared light data to obtain an infrared light data set;
Curve conversion unit: the method comprises the steps of performing curve transformation on a plurality of first infrared light data according to the infrared light data to obtain a plurality of infrared curve data;
And a cycle comparison unit: the method is used for carrying out two-by-two cycle comparison on the infrared curve data of a plurality of different frequencies, and calculating the similarity between every two infrared curve data;
An adjusting unit: and obtaining the adjustment laser power according to the similarity between every two infrared curve data.
The principle of the technical scheme is as follows: as shown in fig. 3, the comparison module is configured to compare infrared light, so as to determine whether adjustment of laser power is needed, in this process, because the present invention has a plurality of infrared light data with different frequencies, the present invention can also be converted into a plurality of infrared curves with different frequencies, and based on the infrared curves in time sequence, the two-to-two cycle comparison is performed through the infrared curves, and in case that the two are very similar, the two have a certain similarity, the similarity determines the stability of temperature, and also determines the stability of reflected infrared light. It is also determined that the detected temperatures are not the same at different frequencies, and if the similarities are different, the detected temperatures are different, that is, adjustment of the laser power is required, when the similarities are larger, the adjustment of the laser power is smaller, and when the similarities are smaller, the adjustment amplitude of the laser power is larger.
As an embodiment of the present invention: the system further comprises:
and a temperature classification module: the temperature data acquisition module is used for acquiring temperature data under different infrared frequencies, dividing a plurality of temperature sections according to the different infrared frequencies, determining first infrared light difference data corresponding to the plurality of temperature sections, and generating a first difference sequence;
If the acquired temperature data are different, namely, the received infrared light of the infrared temperature detection device is different, the temperature is different, a plurality of temperature sections can be obtained, the intensity difference of the infrared light exists between the different temperature sections of the temperature sections, and then a first difference value sequence can be generated.
And a temperature processing module: the corresponding table is used for generating a first difference sequence under different infrared frequencies, acquiring second infrared difference data corresponding to the temperature expectations of the different infrared frequencies, and generating a second difference sequence of the difference sequence;
The processing mode of the different infrared frequencies is that the second infrared light difference data represent infrared intensity data at the different frequencies. The intensity differences should be different at different temperatures as normal, if the intensity differences are different, but at this time if the intensity differences at different infrared frequencies
First difference sequence example table: which indicates that there is a difference in light intensity at different temperatures;
| Hot melt temperature | 170℃ | 180℃ | 190℃ | 200℃ |
| Light intensity difference | 0 | 10 | 100 | 1000 |
Second difference sequence example table: the light intensity difference changes when the temperature is 170 ℃ or 180 ℃, the light intensity is unchanged at 170 ℃ under different frequencies, but the light intensity difference changes when the temperature is detected at 180 ℃ under the infrared light frequency, which means that the temperature detection is inaccurate, and further the temperature alarm is needed.
And the monitoring and alarming module is used for: and the temperature alarm device is used for judging whether the temperature abnormality exists or not according to the first difference value sequence and the second difference value sequence, and carrying out temperature alarm.
The working principle of the technical scheme is as follows: the invention can carry out infrared monitoring of a plurality of temperature sections under different infrared frequencies, and can carry out fitting comparison on the temperature sequences through the sequences generated by the temperatures, thereby carrying out temperature supervision in a fitting comparison mode and alarming the temperature exceeding the limit value.
As an embodiment of the present invention: the system further comprises:
And the equipment data acquisition module is used for: the system is used for collecting comprehensive operation data of the edge bonding machine, the feedback control laser, the edge bonding machine conveyor belt and the infrared temperature measuring device; the comprehensive operation data comprise the power, the working state, the data collected in real time and the like of the equipment;
and a marking module: the device is used for starting and marking different edge sealing equipment according to the comprehensive operation data; the starting mark is a work starting mark when executing work, and further, when the devices are started, the feedback control laser can be automatically converted into a mode of automatically adjusting power.
And a dynamic adjustment module: and the power automatic adjustment mode is started when the feedback control laser is started according to the starting mark.
The working principle of the technical scheme is as follows: according to the invention, the comprehensive number nine in the edge sealing process can be obtained, the edge sealing equipment is subjected to real-time starting marking through the comprehensive data of the edge sealing, and further the power of the feedback control laser is automatically adjusted through the starting marking.
The beneficial effects of the technical scheme are as follows: the invention can automatically adjust the feedback control laser, realize the automatic control of the feedback control laser, and monitor the running states of different edge sealing devices according to the marks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The utility model provides an utilize infrared temperature measurement monitoring banding strip adjustment laser power's system, includes bag sealer, feedback control laser instrument, bag sealer conveyer belt, infrared temperature measuring device, its characterized in that, the system includes:
the detection module is used for determining the real-time temperature of the edge banding through an infrared temperature measuring device which is pre-configured at the joint of the edge banding; wherein,
The infrared temperature measuring device acquires real-time infrared detection temperatures under different infrared frequencies through different infrared emission powers;
and a feedback detection module: the method comprises the steps of obtaining the intensity value of reflected light at the joint of the edge sealing strip, comparing the intensity value with the threshold value of the intensity of the light emitted by the melting rod, and judging the infrared light intensity difference;
and a comparison module: the laser power adjusting device is used for comparing whether the infrared light intensity differences are the same under different infrared frequencies and adjusting the laser power when the infrared light intensity differences are different;
The feedback detection module: comprising the following steps:
Reflected light unit: the laser is used for acquiring infrared reflected light through feedback control to obtain first light intensity; wherein,
The infrared reflected light is the infrared edge sealing reflected light of the feedback control laser;
light emitting unit: the laser is used for acquiring the light emitted by the melting rod through feedback control to obtain second light intensity;
A light difference determination unit: the light intensity deviation of the reflected light and the emitted light is judged according to the second light intensity and the first light intensity;
The system further comprises:
and a segmentation module: the method comprises the steps of acquiring a near infrared hyperspectral image of a sealing strip, selecting the near infrared hyperspectral images of the sealing strip under different frequencies, performing image processing, and dividing the target sealing strip according to the images;
and a gray level conversion module: the method comprises the steps of performing image processing and analysis on a gray level image of an edge banding, determining an image subarea representing the melting characteristic of the edge banding, and generating a gray level sub-image capable of representing the melting degree of the edge banding;
Spectral curve conversion module: the method comprises the steps of determining coordinates of each pixel point in a hyperspectral data cube aiming at a gray level sub-image capable of representing the melting degree of the edge banding, and taking the spectrum average spectrum of the points as a spectrum curve of the edge banding;
And a pretreatment module: the method comprises the steps of preprocessing a spectrum curve, determining a target wave band, and eliminating spectrum difference based on the target wave band;
And the melting degree detection module is used for: the method comprises the steps of comparing and predicting the melting degree of the edge banding through an effective spectrum curve melted by the edge banding;
The comparison module comprises:
a data preprocessing unit: acquiring a plurality of infrared light data with different frequencies, and preprocessing the infrared light data to obtain an infrared light data set;
Curve conversion unit: the method comprises the steps of performing curve transformation on a plurality of first infrared light data according to the infrared light data to obtain a plurality of infrared curve data;
And a cycle comparison unit: the method is used for carrying out two-by-two cycle comparison on the infrared curve data of a plurality of different frequencies, and calculating the similarity between every two infrared curve data;
an adjusting unit: and obtaining the adjustment laser power according to the similarity between every two infrared curve data.
2. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
an initial temperature acquisition module: the temperature value curve is generated by collecting temperature values of the edge banding joints at different moments;
a first screening module: the temperature value curve is used for presetting a first screening condition, and abnormal temperature detection is carried out on the temperature value curve based on the first screening condition, so that a monitoring temperature set at different moments is obtained;
and a second screening module: the method comprises the steps of presetting a second screening condition, and carrying out second screening on a monitoring temperature set based on the second screening condition to obtain a second screening set; wherein,
The second screening condition is obtained based on the average value of the first screening set;
A temperature limit setting module: and the method is used for acquiring an upper limit temperature value and a lower limit temperature value of the joint of the edge sealing strip based on the second screening set.
3. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
the expected contrast module: the method comprises the steps of comparing the indoor environment temperature with a preset temperature to generate a temperature difference value;
And an adjusting module: the temperature difference value is compared with a preset threshold value, and an operation power adjusting instruction of the feedback control laser is generated;
The multi-frequency detection module: the control method is used for changing the feedback control laser operating power based on the PID control model through the operating frequency adjustment command.
4. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
and a three-dimensional scanning module: the method comprises the steps of erecting a plurality of three-dimensional scanning devices on the periphery of the edge bonding machine, and obtaining point cloud coordinate data of an edge bonding scene through multiple scanning;
space building module: the method comprises the steps of constructing a global three-dimensional space of an edge sealing scene according to point cloud coordinate data;
And a position mapping module: the positioning device is used for positioning each edge sealing component according to the global three-dimensional space and determining the position mapping relation of different edge sealing devices;
and a target retrieval module: the method comprises the steps of clustering all edge sealing devices according to a position mapping relation, and constructing a target image retrieval tree of each edge sealing device;
dynamic supervision module: and the method is used for dynamically supervising different edge sealing equipment according to the target image retrieval tree and determining edge sealing steps.
5. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
The state acquisition module is used for: acquiring a system state of a feedback control laser;
wherein the system state includes a current emitted light intensity and an expected emitted light intensity;
The system characteristic amount calculating module: the method comprises the steps of inputting a system state into a pre-trained time sequence model, and obtaining a current system feature vector matched with the system state;
the time sequence model is used for outputting distinguishable system characteristic vectors corresponding to different light intensity feedback control;
The light intensity control output module: the system is used for obtaining and outputting corresponding light intensity control quantity according to the system state and the current system feature vector;
And a feedback module: the control device is used for executing an adjusting instruction of the light intensity control quantity and feeding the light intensity control quantity back to the time sequence model;
The expected judgment module: for returning to perform the operation of acquiring the system state of the feedback controlled laser until the current value of the light intensity of the feedback controlled laser reaches the desired light intensity.
6. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
and a temperature classification module: the temperature data acquisition module is used for acquiring temperature data under different infrared frequencies, dividing a plurality of temperature sections according to the different infrared frequencies, determining first infrared light difference data corresponding to the plurality of temperature sections, and generating a first difference sequence;
and a temperature processing module: the corresponding table is used for generating a first difference sequence under different infrared frequencies, acquiring corresponding second infrared light difference data under the same condition of different infrared frequencies, and generating a second difference sequence of the difference sequence;
And the monitoring and alarming module is used for: and the temperature alarm device is used for judging whether the temperature abnormality exists or not according to the first difference value sequence and the second difference value sequence, and carrying out temperature alarm.
7. A system for adjusting laser power using an infrared thermometry monitoring edging strip as defined in claim 1, further comprising:
And the equipment data acquisition module is used for: the system is used for collecting comprehensive operation data of the edge bonding machine, the feedback control laser, the edge bonding machine conveyor belt and the infrared temperature measuring device;
and a marking module: the device is used for starting and marking different edge sealing equipment according to the comprehensive operation data;
and a dynamic adjustment module: and the power automatic adjustment mode is started when the feedback control laser is started according to the starting mark.
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