CN115031869A - A capture temperature sensor based on continuous laser and its dynamic calibration method - Google Patents

Abstract

The invention provides a capture type temperature sensor based on continuous laser and a dynamic calibration method thereof, wherein the capture type temperature sensor comprises the following steps: the laser scanning module is used for emitting laser to a target position on the edge banding based on the optical component; the probe temperature measurement module is used for irradiating a light path emitted by the probe on the target position by using the two reflectors, is superposed with the laser, and measures the temperature of a laser drop point at the target position to obtain a real-time temperature value of the laser edge sealing; and the adjusting module is used for adjusting the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value, so that the problem of smoking and firing in the edge sealing process is solved. The edge sealing is more stable and the quality is better.

Description

A capture temperature sensor based on continuous laser and its dynamic calibration method

technical field

The invention relates to the technical field of laser edge sealing, in particular to a continuous laser-based capturing temperature sensor and a dynamic calibration method thereof.

Background technique

Edge banding is an indispensable process in the production of panel furniture. It refers to the use of hot melt adhesive to paste the edge band on the cutting surface of the plate, and then through the head-to-head mechanism to cut off the remaining material at the head and tail, and the rough repair mechanism to highlight the surface. The excess edge banding on the upper and lower surfaces of the workpiece is leveled, and the finishing mechanism rounds the upper and lower horizontal edges of the trimmed edge band, and the tracking chamfering mechanism rounds the front and rear vertical edges and four corners of the edge band. The edge mechanism scrapes the knife pattern generated during the operation of the finishing mechanism, and the polishing mechanism performs the final polishing operation on the edges and corners processed by the above processes.

The traditional laser edge sealing uses laser to irradiate the adhesive layer of the edge sealing strip. After the pressing wheel, the edge sealing strip is attached to the board surface to achieve the edge sealing effect. However, in the traditional laser edge sealing, during the edge sealing process, There will be serious problems such as smoke and fire due to mechanical jamming and the movement of the edge strip.

SUMMARY OF THE INVENTION

The invention provides a continuous laser-based capturing temperature sensor and a dynamic calibration method thereof, which solves the problem of smoke and fire during the edge sealing process, and makes the edge sealing more stable and of better quality.

A continuous laser based capture temperature sensor comprising:

Laser scanning module for emitting laser light to the target position on the edge strip based on optical components;

The probe temperature measurement module is used to use two reflecting mirrors to make the light path emitted by the probe irradiate on the target position and coincide with the laser, and measure the temperature of the laser landing point at the target position to obtain the laser Real-time temperature value of edge sealing;

An adjustment module, configured to adjust the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

Preferably, the laser scanning module includes:

a positioning unit, configured to preset a target position on the edge band, and determine the laser emission direction of the laser scanning unit based on the positional relationship between the optical component and the laser scanning unit;

The laser scanning unit is configured to determine the working parameters of the laser scanning based on the laser emission direction.

Preferably, the probe temperature measurement module includes:

Establishing a sub-module for establishing the optical path rule of the probe under the two reflecting mirrors based on the positional relationship between the probe and the two reflecting mirrors;

a probe sub-module, configured to analyze the target position based on the optical path rule, and determine the emission optical path of the probe;

The temperature measurement sub-module is used to perform temperature detection on the position where the probe falls, so as to obtain the real-time temperature value of the laser edge sealing.

Preferably, the probe sub-module includes:

a law analysis unit, which analyzes the law of the optical path, and reversely determines a first reverse law from the second mirror to the first mirror, and a second reverse law from the first mirror to the probe;

a path determination unit, configured to take the target position as a starting point, set a first optical path from the target position to the second reflector, and determine the path from the second reflector to the first reflector based on the first inverse law , realizing the second optical path of the first optical path;

The path determining unit is further configured to determine a third optical path from the first mirror to the probe based on the second inverse law;

An emission determination unit, configured to set light emission parameters of the probe based on the third optical path and emit light.

Preferably, the temperature measurement sub-module includes:

a temperature measuring unit, configured to perform temperature detection on the position where the probe is dropped, obtain a first temperature value, and measure a second set of temperature values at positions before and after the position where the probe is dropped;

A temperature determination unit, based on the second temperature value set, to set the temperature trend and temperature range of the settled position point, and determine whether the first temperature value satisfies the temperature trend and temperature range;

If so, use the first temperature value as the real-time temperature value;

Otherwise, based on the temperature trend and the temperature range, the first temperature value is corrected, and the corrected temperature value is used as the real-time temperature value.

Preferably, the establishment sub-module includes:

a static model establishment unit, configured to establish a static model of the light path emission environment based on the positional relationship between the probe and the two mirrors, and to mark the position of the probe and the two reflectors in the static model of the light path emission environment, get the location tag;

A dynamic model establishment unit, used for adding the emission dynamic parameter range of the probe and the angle adjustment range of the two mirrors to the corresponding position label, and dynamically setting the optical path emission environment static model to obtain the optical path emission environment dynamic model;

The optical path analysis unit is used to respectively change any dynamic setting of the emission dynamic parameter range and the angle adjustment range of the two mirrors in the optical path emission environment dynamic model, and determine the single change of the optical path under the dynamic setting change state;

A single rule determination unit, configured to determine, based on a single change state of the optical path, whether any dynamic setting change in the emission dynamic parameter range of the probe and the angle adjustment range of the two mirrors is, the corresponding first single change rule , the second single change law, the third single change law;

A multiple rule determination unit, configured to determine, based on the first single change rule, the second single change rule, and the third single change rule, a double change obtained when any one of the dynamic settings is unchanged and the other two dynamic settings are changed A set of laws, and based on the set of double change laws, a triple change law obtained when all the dynamic settings are changed;

A general rule determination unit, based on the first single change rule, the second single change rule, the third single change rule and the set of double change rules, to determine the influence relationship between all the rule points in the triple change rule, based on the Influence relationship, dynamic rule setting is performed on all the regular points, and based on the triple change rule, the dynamic rule setting is used to obtain a dynamically changeable optical path rule.

Preferably, the method further includes: a verification and correction module, configured to determine the degree of coincidence between the laser and the optical path irradiated on the target position after the optical path emitted by the probe is irradiated on the target position and coincides with the laser, And according to the coincidence detection results, the optical path emitted by the probe is corrected;

The verification and correction module includes:

an image acquisition unit, configured to perform image acquisition on a target position on the edge banding strip to obtain an edge band image, and grayscale the edge band image to obtain a grayscale image;

an image processing unit, configured to perform global pixel value detection on the grayscale image, determine a first area with a pixel value within a preset range, perform line detection on the first area, and determine a second area where the lines are located;

an area analysis unit, configured to perform edge interception on the second area based on the line feature to obtain a third area with a fixed length and width, set the detection accuracy according to the width, and measure the pixel value of the pixel point of each column of the third area For detection, the pixel values of the pixels in each column are equal as the width of the first column, the maximum difference of the pixel values of the pixels in each column is within the preset difference range as the width of the second column, and the other columns are used as the third column. width;

A coincidence degree determination unit, configured to set a first weight for the width of the first column, set a second weight for the width of the second column based on the image precision of the third area, and use the first weight, the second weight weight, determining the weighted total width of the width of the first column and the width of the second column, and based on the ratio of the weighted total width to the width of the third region as the difference between the laser and the light path irradiating on the target position the degree of coincidence;

a coincidence degree judging unit, configured to judge whether the coincidence degree meets the preset coincidence degree requirement, and if so, do not correct the optical path emitted by the probe;

Otherwise, correct the optical path emitted by the probe based on the difference between the coincidence degree and the preset coincidence degree;

a calibration unit, configured to determine the adjustment direction of the probe based on the position of the width of the second column and the width of the third column when the optical path emitted by the probe needs to be calibrated, and based on the coincidence degree and the preset The difference value of the coincidence degree determines the adjustment range of the probe, and the optical path emitted by the probe is corrected based on the adjustment direction and the adjustment range.

Preferably, the adjustment module includes:

a receiving unit, configured to receive a temperature signal fed back from the probe temperature measurement module, and based on the temperature signal, determine a set of real-time temperature values within a preset time;

a temperature judging unit for judging the difference between the real-time temperature value and the set temperature value in the set of real-time temperature values;

If the difference is smaller than the preset difference range, increasing the power of the laser scanning module;

If the difference is within the preset difference range, keeping the power of the laser scanning module unchanged;

If the difference is greater than a preset difference range, the power of the laser scanning module is reduced.

Preferably, the adjustment module further includes:

an adjustment value determination unit, configured to determine the theoretical power value of the laser scanning module based on the real-time temperature value set and the current power value after determining that the power of the laser scanning module is adjusted;

The power comparison unit is configured to compare the current power value and the theoretical power value with the power range of the laser scanning module, and determine the actual power value according to the comparison result.

A dynamic calibration method for a capture temperature sensor based on a continuous laser, comprising:

Step 1: Based on the optical components, the laser is emitted to the target position on the edge band;

Step 2: Using two mirrors, the light path emitted by the probe is irradiated on the target position and coincides with the laser, and the temperature of the laser landing point at the target position is measured to obtain the real-time laser edge sealing. temperature value;

Step 3: Adjust the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent 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, claims, and drawings.

The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

FIG. 1 is a structural diagram of a continuous laser-based capturing temperature sensor in an embodiment of the present invention;

2 is a structural diagram of a probe temperature measurement module in an embodiment of the present invention;

FIG. 3 is a flowchart of a method for dynamic calibration of a continuous laser-based capture temperature sensor according to an embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

Example 1

A capture temperature sensor based on continuous laser, as shown in Figure 1, includes:

Laser scanning module for emitting laser light to the target position on the edge strip based on optical components;

The probe temperature measurement module is used to use two reflecting mirrors to make the light path emitted by the probe irradiate on the target position and coincide with the laser, and measure the temperature of the laser landing point at the target position to obtain the laser Real-time temperature value of edge sealing;

An adjustment module, configured to adjust the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

In this embodiment, the optical assembly includes several mirrors, beam splitters, etc., which are used to assist in determining the laser emission direction and ensure the accuracy of the laser emission to the target position.

In this embodiment, the target position is a line, and the laser scanning module sequentially and dynamically emits laser light to the line.

In this embodiment, the two mirrors are used to assist in determining the optical path of the probe.

In this embodiment, if the real-time temperature value is less than the set temperature value, the power of the laser scanning module is increased, otherwise, the power of the laser scanning module is decreased.

The beneficial effect of the above-mentioned design scheme is: this invention scans the edge strip through the optical component through the laser, and sets the temperature measuring probe module at the same time. At the same point on the edge, after the laser scanning module emits light, the temperature measuring probe will measure the temperature of the laser landing point at a high speed. Increase the power so that the temperature is always in the appropriate range, so as to solve the problem of smoke and fire during the edge sealing process, and make the edge sealing more stable and quality.

Example 2

Based on Embodiment 1, an embodiment of the present invention provides a continuous laser-based capturing temperature sensor, and the laser scanning module includes:

a positioning unit, configured to preset a target position on the edge band, and determine the laser emission direction of the laser scanning unit based on the positional relationship between the optical component and the laser scanning unit;

The laser scanning unit is configured to determine the working parameters of the laser scanning based on the laser emission direction.

In this embodiment, the laser scanning unit may be, for example, a laser transmitter.

In this embodiment, the working parameters of the laser scanning unit include the laser emission angle, the moving distance of the laser emission, etc., to ensure that the set working parameters meet the scanning position requirements.

The beneficial effect of the above-mentioned design scheme is: the laser beam is swept on the edge band through the optical component to ensure the quality of the edge band, and at the same time, it provides a basis for the temperature measurement on the edge band.

Example 3

On the basis of Embodiment 1, an embodiment of the present invention provides a continuous laser-based capturing temperature sensor. As shown in FIG. 2 , the probe temperature measurement module includes:

Establishing a sub-module for establishing the optical path rule of the probe under the two reflecting mirrors based on the positional relationship between the probe and the two reflecting mirrors;

a probe sub-module, configured to analyze the target position based on the optical path rule, and determine the emission optical path of the probe;

The temperature measurement sub-module is used to perform temperature detection on the position where the probe falls, so as to obtain the real-time temperature value of the laser edge sealing.

In this embodiment, the path rule of the optical path is used to reflect the path rule of the light path emitted by the probe in different directions after passing through the two mirrors.

In this embodiment, the position where the probe lands is on the target position.

The beneficial effect of the above design scheme is: by establishing the optical path rule of the probe under the two mirrors, it is ensured that the optical path emitted by the probe accurately corresponds to the position of the laser, so that the temperature measurement and laser coordination are better, and the location of the landing point is better. The temperature measurement position is located at the same point of the edge band, and the temperature of the drop point position is detected by implementing the technology to solve the technical problem that the temperature of the laser focus point cannot be accurately detected in the prior art, and there is a potential safety hazard.

Example 4

On the basis of Embodiment 3, a capture-type temperature sensor based on continuous laser is characterized in that, the probe sub-module includes:

a law analysis unit, which analyzes the law of the optical path, and reversely determines a first reverse law from the second mirror to the first mirror, and a second reverse law from the first mirror to the probe;

a path determination unit, configured to take the target position as a starting point, set a first optical path from the target position to the second reflector, and determine the path from the second reflector to the first reflector based on the first inverse law , realizing the second optical path of the first optical path;

The path determining unit is further configured to determine a third optical path from the first mirror to the probe based on the second inverse law;

An emission determination unit, configured to set light emission parameters of the probe based on the third optical path and emit light.

In this embodiment, the optical path of the light emitted by the probe is sequentially emitted from the probe, passes through the first reflecting mirror, the second reflecting mirror, and finally falls to the target position.

In this embodiment, the light that should be emitted by the probe in theory is determined inversely from the target position through the second reflecting mirror and the first reflecting mirror according to the law of the optical path.

In this embodiment, the emission parameters include the emission angle of the probe, the intensity of emitted light, and the like.

The beneficial effect of the above-mentioned design scheme is: according to the law of the optical path, when the optical path emitted by the probe is accurately transmitted to the target position through the first reflection mirror and the second reflection mirror, the emission parameters of the probe are reversely derived. It is ensured that the light path emitted by the probe is accurately transmitted to the target position, which provides a basis for temperature measurement at the target position.

Example 5

On the basis of Embodiment 3, the present invention provides a continuous laser-based capturing temperature sensor, and the temperature measurement sub-module includes:

a temperature measuring unit, configured to perform temperature detection on the position where the probe is dropped, obtain a first temperature value, and measure a second set of temperature values at positions before and after the position where the probe is dropped;

A temperature determination unit, based on the second temperature value set, to set the temperature trend and temperature range of the settled position point, and determine whether the first temperature value satisfies the temperature trend and temperature range;

If so, use the first temperature value as the real-time temperature value;

Otherwise, based on the temperature trend and the temperature range, the first temperature value is corrected, and the corrected temperature value is used as the real-time temperature value.

In this embodiment, the requirement for correcting the first temperature value is to make the corrected temperature value satisfy the temperature trend and temperature range.

The beneficial effect of the above design scheme is: by correcting the temperature value detected by the probe and combining the temperature value before and after the settled position point, it is ensured that the measured temperature value satisfies the temperature change law during the laser edge sealing process. The determined real-time temperature value better reflects the temperature of laser edge sealing.

Example 6

On the basis of Embodiment 3, an embodiment of the present invention provides a continuous laser-based capturing temperature sensor, and the establishment sub-module includes:

a static model establishment unit, configured to establish a static model of the light path emission environment based on the positional relationship between the probe and the two mirrors, and to mark the position of the probe and the two reflectors in the static model of the light path emission environment, get the location tag;

A dynamic model establishment unit, used for adding the emission dynamic parameter range of the probe and the angle adjustment range of the two mirrors to the corresponding position label, and dynamically setting the optical path emission environment static model to obtain the optical path emission environment dynamic model;

The optical path analysis unit is used to respectively change any dynamic setting of the emission dynamic parameter range and the angle adjustment range of the two mirrors in the optical path emission environment dynamic model, and determine the single change of the optical path under the dynamic setting change state;

A single rule determination unit, configured to determine, based on a single change state of the optical path, whether any dynamic setting change in the emission dynamic parameter range of the probe and the angle adjustment range of the two mirrors is, the corresponding first single change rule , the second single change law, the third single change law;

A multiple rule determination unit, configured to determine, based on the first single change rule, the second single change rule, and the third single change rule, a double change obtained when any one of the dynamic settings is unchanged and the other two dynamic settings are changed A set of laws, and based on the set of double change laws, a triple change law obtained when all the dynamic settings are changed;

A general rule determination unit, based on the first single change rule, the second single change rule, the third single change rule and the set of double change rules, to determine the influence relationship between all the rule points in the triple change rule, based on the Influence relationship, dynamic rule setting is performed on all the regular points, and based on the triple change rule, the dynamic rule setting is used to obtain a dynamically changeable optical path rule.

In this embodiment, the static model of the light path emission environment is used to simulate the positional relationship between the probe and the two mirrors, and the positional relationship between the probe and the two mirrors can be accurately performed through this model. Representation and visualization.

In this embodiment, the transmission dynamic parameter range of the probe and the angle adjustment range of the two mirrors are determined according to the model of the probe and the installation positions of the two mirrors.

In this embodiment, on the basis of the static model of the optical path emission environment, the dynamic model of the optical path emission environment can adjust the emission dynamic parameter range and angle adjustment range of the probe and the two mirrors to obtain the optical path emission The environment dynamic model realizes the acquisition of optical path changes under various parameter changes.

In this embodiment, the first single change rule, the second single change rule, and the third single change rule correspond to changing only the emission dynamic parameter range of the probe, the angle adjustment range of the first reflector, and the angle adjustment range of the second reflector, respectively. The angle adjustment range is the change law of the light path and the path.

In this embodiment, the double change rule set corresponds to changing any two parameters of the probe's emission dynamic parameter range, the angle adjustment range of the first reflector, and the angle adjustment range of the second reflector. Changes in the path of the optical path law.

In this embodiment, the three-fold change rule is to adjust the transmission dynamic parameter range of the probe, the angle adjustment range of the first reflector, and the angle adjustment range of the second reflector, so as to obtain the total adjustment of the path of the optical path. changing laws.

In this embodiment, when the emission dynamic parameter range of the probe changes, it will affect the optical paths of the two mirrors. When the angle adjustment range of the first mirror changes, it will affect the optical path of the second mirror. The influence is represented by the influence relationship, and the regular point corresponds to the probe, the first reflector, and the second reflector.

In this embodiment, based on the triple change rule, using the dynamic rule setting is specifically to determine the influence rule among the probe, the first reflector, and the second reflector according to the influence relationship, and perform dynamic rule setting, so that The optical path law can be dynamically changed, which can satisfy the arbitrary changes of the probe, the first reflector and the second reflector, and the optical path law can be updated in time, so that the obtained optical path law can meet the path brought by the actual parameter change. Rules change.

The beneficial effect of the above-mentioned design scheme is: based on the positional relationship between the probe and the two mirrors, a dynamic changeable optical path rule of the probe under the two mirrors is established to satisfy the probe, the first reflection When the mirror and the second reflector are arbitrarily changed, the light path law is updated in time, so that the obtained light path law meets the path law change caused by the actual parameter change, in order to ensure the accuracy of the probe emission light path. .

Example 7

On the basis of Embodiment 1, the embodiment of the present invention provides a continuous laser-based capturing temperature sensor, further comprising: a verification and correction module for irradiating the target position with the light path emitted by the probe, and being compatible with the target position. After the laser coincides, determine the coincidence degree between the laser and the optical path irradiated on the target position, and correct the optical path emitted by the probe according to the detection result of the coincidence degree;

The verification and correction module includes:

an image acquisition unit, configured to perform image acquisition on a target position on the edge banding strip to obtain an edge band image, and grayscale the edge band image to obtain a grayscale image;

an image processing unit, configured to perform global pixel value detection on the grayscale image, determine a first area with a pixel value within a preset range, perform line detection on the first area, and determine a second area where the lines are located;

an area analysis unit, configured to perform edge interception on the second area based on the line feature to obtain a third area with a fixed length and width, set the detection accuracy according to the width, and measure the pixel value of the pixel point of each column of the third area For detection, the pixel values of the pixels in each column are equal as the width of the first column, the maximum difference of the pixel values of the pixels in each column is within the preset difference range as the width of the second column, and the other columns are used as the third column. width;

A coincidence degree determination unit, configured to set a first weight for the width of the first column, set a second weight for the width of the second column based on the image precision of the third area, and use the first weight, the second weight weight, determining the weighted total width of the width of the first column and the width of the second column, and based on the ratio of the weighted total width to the width of the third region as the difference between the laser and the light path irradiating on the target position the degree of coincidence;

a coincidence degree judging unit, configured to judge whether the coincidence degree meets the preset coincidence degree requirement, and if so, do not correct the optical path emitted by the probe;

Otherwise, correct the optical path emitted by the probe based on the difference between the coincidence degree and the preset coincidence degree;

a calibration unit, configured to determine the adjustment direction of the probe based on the position of the width of the second column and the width of the third column when the optical path emitted by the probe needs to be calibrated, and based on the coincidence degree and the preset The difference value of the coincidence degree determines the adjustment range of the probe, and the optical path emitted by the probe is corrected based on the adjustment direction and the adjustment range.

In this embodiment, the first area where the pixel value is within the preset range is the area where the edge sealing operation is performed.

In this embodiment, the second area is an area for detecting edge sealing, and the third area is a standardized and standardized area based on the second area, which is convenient for judging the coincidence degree.

In this embodiment, the pixel values of the pixels in each column are the same, indicating that the position of the laser and the light path irradiated at the position corresponding to this column overlaps, and the maximum difference between the pixel values of the pixels in each column is the maximum pixel value of the pixel and the light path. The difference between the minimum pixel values indicates that the position corresponding to this column partially overlaps the position irradiated by the laser and the light path, and other columns indicate that they do not overlap at all.

In this embodiment, if the image accuracy of the third area is larger, the correspondingly set first weight is smaller and the second weight is larger; otherwise, the correspondingly set first weight is larger and the second weight is smaller, so The difference in the image precision of the third area is avoided, resulting in an error in judging the degree of overlap.

The beneficial effect of the above design scheme is: by verifying the correction module before measuring the temperature of the laser drop point with the temperature measuring probe, the degree of coincidence between the laser and the light path irradiated on the target position is determined, and detection is performed according to the degree of coincidence. As a result, the optical path emitted by the probe is corrected to ensure the accuracy of the temperature measured by the probe in position, to ensure that the measured temperature reflects the actual temperature during the laser landing edge sealing process, and to provide accurate power control for the subsequent control of the laser scanning module. data base.

Example 8

Based on Embodiment 1, an embodiment of the present invention provides a continuous laser-based capturing temperature sensor, and the adjustment module includes:

a receiving unit, configured to receive a temperature signal fed back from the probe temperature measurement module, and based on the temperature signal, determine a set of real-time temperature values within a preset time;

a temperature judging unit for judging the difference between the real-time temperature value and the set temperature value in the set of real-time temperature values;

If the difference is smaller than the preset difference range, increasing the power of the laser scanning module;

If the difference is within the preset difference range, keeping the power of the laser scanning module unchanged;

If the difference is greater than a preset difference range, the power of the laser scanning module is reduced.

The beneficial effect of the above design scheme is: by comparing the temperature from the probe temperature measurement module, if the temperature is higher than the set temperature, the laser scanning module is controlled to reduce the power, and if the temperature is lower than the set temperature, the power is increased, so that the temperature is always In an appropriate range, the problem of smoke and fire during the edge sealing process can be solved, and the edge sealing can be more stable and of better quality.

Example 9

Based on Embodiment 8, an embodiment of the present invention provides a continuous laser-based capturing temperature sensor, and the adjustment module further includes:

an adjustment value determination unit, configured to determine the theoretical power value of the laser scanning module based on the real-time temperature value set and the current power value after determining that the power of the laser scanning module is adjusted;

Calculate the theoretical power value ΔP _r according to the following formula;

表示实现所述实时温度值集合中平均实时温度值所需激光扫射模块的功率，T_c表示所述实时温度值集合的平均实时温度值，n表示所述实时温度值集合中实时温度值个数，θ_t表示所述实时温度值集合的升降幅值，取值为(-1.0，1.0)，ΔP_i表示实现所述实时温度值集合中第i个实时温度值所需的激光扫射模块的功率；Wherein, τ _t represents the difference amplitude determined by the difference between the real-time temperature value in the real-time temperature value set and the set temperature value, and is (-1.0, 1.0), P _d represents the current power value, T _d represents the edge sealing temperature value under the current power value,

represents the power of the laser scanning module required to realize the average real-time temperature value in the real-time temperature value set, T _c represents the average real-time temperature value of the real-time temperature value set, n represents the real-time temperature value number in the real-time temperature value set , θ _t represents the amplitude of rise and fall of the real-time temperature value set, which is (-1.0, 1.0), ΔP _i represents the power of the laser scanning module required to realize the i-th real-time temperature value in the real-time temperature value set ;

a power comparison unit, configured to compare the current power value and the theoretical power value with the power range of the laser scanning module, and determine the actual power value according to the comparison result;

Calculate the actual adjusted power value ΔP _s according to the following formula;

Wherein, P _b represents the power range of the laser scanning module, P _bmax represents the maximum value of the power range of the laser scanning module, and P _bmin represents the minimum value of the power range of the laser scanning module.

In this embodiment, the larger the difference between the real-time temperature value in the real-time temperature value set and the set temperature value, the larger the correspondingly determined difference amplitude.

In this embodiment, the ratio of the current power value and its corresponding edge sealing temperature value to the average real-time temperature value in the set of real-time temperature values and the power of the required laser scanning module is used as the influence factor for determining the theoretical power value, Neutralization takes into account the specific numerical influence of the power of the laser scanning module on the temperature, so that the obtained theoretical power value more accurately meets the requirements for the edge sealing temperature.

In this embodiment, when the theoretical power value is not within the power range of the laser scanning module, usually the theoretical power value is greater than the power range. value is adjusted so that the resulting actual power value is within the stated power range.

In this example, usually

例如可以是，P_d＝7KW，τ_t＝0.9，θ_t＝0.9，

则ΔP_r＝10.4KW。In this example, for the formula

For example, P _d =7KW, τ _t =0.9, θ _t =0.9,

Then ΔP _r =10.4KW.

例如可以是，P_bmax＝9KW，P_bmin＝1KW，ΔP_s＝7KW。In this example,

For example, P _bmax =9KW, P _bmin =1KW, ΔP _s =7KW.

The beneficial effects of the above design scheme are: through the real-time temperature value set and the current power value, the theoretical power value of the laser scanning module is determined, combined with the specific power requirements of the laser emission module, a reasonable actual power value is determined, and the temperature is always guaranteed. In the right range, the laser scanning module is protected, so as to solve the problem of smoke and fire during the edge sealing process, and make the edge sealing more stable and quality.

Example 10

A dynamic calibration method of a continuous laser-based capture temperature sensor, as shown in Figure 3, includes:

Step 1: Based on the optical components, the laser is emitted to the target position on the edge band;

Step 2: Using two mirrors, the light path emitted by the probe is irradiated on the target position and coincides with the laser, and the temperature of the laser landing point at the target position is measured to obtain the real-time laser edge sealing. temperature value;

Step 3: Adjust the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

The beneficial effect of the above-mentioned design scheme is: this invention scans the edge strip through the optical component through the laser, and sets the temperature measuring probe module at the same time. At the same point on the edge, after the laser scanning module emits light, the temperature measuring probe will measure the temperature of the laser landing point at a high speed. Increase the power so that the temperature is always in the appropriate range, so as to solve the problem of smoke and fire during the edge sealing process, and make the edge sealing more stable and quality.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. A continuous laser based captive temperature sensor, comprising:

the laser scanning module is used for emitting laser to a target position on the edge banding based on the optical component;

the probe temperature measurement module is used for irradiating a light path emitted by the probe on the target position by using the two reflectors, is superposed with the laser, and measures the temperature of a laser drop point at the target position to obtain a real-time temperature value of the laser edge sealing;

and the adjusting module is used for adjusting the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

2. The continuous laser based catch temperature sensor according to claim 1, wherein the laser sweep module comprises:

the positioning unit is used for presetting and stipulating a target position on the edge sealing strip and determining the laser emission direction of the laser scanning unit based on the position relation between the optical assembly and the laser scanning unit;

and the laser scanning unit is used for determining the working parameters of laser scanning based on the laser emission direction.

3. The continuous laser based trapped temperature sensor of claim 1, wherein the probe thermometry module comprises:

the establishing submodule is used for establishing a light path rule of the probe under the two reflectors based on the position relation between the probe and the two reflectors;

the probe submodule is used for analyzing the target position based on the light path rule and determining an emission light path of the probe;

and the temperature measurement sub-module is used for carrying out temperature detection on the fixed position point of the probe so as to obtain a real-time temperature value of the laser edge sealing.

4. The continuous laser based catch temperature sensor according to claim 3, wherein the probe sub-module comprises:

the law analysis unit is used for analyzing the law of the optical path and reversely determining a first reverse law from the second reflector to the first reflector and a second reverse law from the first reflector to the probe;

the path determining unit is used for setting a first optical path from the target position to the second reflector by taking the target position as a starting point, determining a second optical path from the second reflector to the first reflector based on the first reverse rule, and realizing the first optical path;

the path determining unit is further used for determining a third optical path from the first reflecting mirror to the probe based on the second inverse rule;

and the emission determining unit is used for setting the light emission parameters of the probe and emitting the light based on the third optical path.

5. The continuous laser based catch temperature sensor according to claim 3, wherein the thermometry submodule comprises:

the temperature measuring unit is used for detecting the temperature of the position point where the probe is located to obtain a first temperature value and measuring a second temperature value set of the position points before and after the position point where the probe is located;

the temperature judging unit is used for setting the temperature trend and the temperature range of the position point where the probe is located based on the second temperature value set and judging whether the first temperature value meets the temperature trend and the temperature range;

if so, taking the first temperature value as a real-time temperature value;

otherwise, based on the temperature trend and the temperature range, the first temperature value is corrected, and the corrected temperature value is used as a real-time temperature value.

6. The continuous laser based catch temperature sensor according to claim 3, wherein the build submodule comprises:

the static model establishing unit is used for establishing a light path emission environment static model based on the position relation between the probe and the two reflectors, and carrying out position marking on the probe and the two reflectors in the light path emission environment static model to obtain position labels;

the dynamic model establishing unit is used for adding the emission dynamic parameter range of the probe and the angle adjusting ranges of the two reflectors to the corresponding position tags, and dynamically setting the optical path emission environment static model to obtain an optical path emission environment dynamic model;

the light path analysis unit is used for respectively changing any dynamic setting of an emission dynamic parameter range and an angle adjustment range of the two reflectors in the light path emission environment dynamic model and determining a single change state of a light path under the change of the dynamic setting;

the single rule determining unit is used for determining a first single change rule, a second single change rule and a third single change rule corresponding to a dynamic parameter range of emission of the probe and an angle adjusting range of the two reflectors when any dynamic setting is changed based on the single change state of the optical path;

a multiple rule determining unit, configured to determine, based on the first single change rule, the second single change rule, and the third single change rule, a dual change rule set that is obtained when any one of the dynamic settings is unchanged and the other two dynamic settings are changed, and obtain, based on the dual change rule set, a triple change rule that is obtained when all the dynamic settings are changed;

and the total rule determining unit is used for determining the influence relation among all rule points in the triple change rule based on the first single change rule, the second single change rule, the third single change rule and the double change rule set, dynamically setting all rule points based on the influence relation, and obtaining the dynamically-changeable light path rule based on the triple change rule and by utilizing the dynamic rule setting.

7. The continuous laser based trapping temperature sensor of claim 1, further comprising: the verification and correction module is used for determining the coincidence degree of the laser and the light path irradiated on the target position after the light path irradiated by the probe is irradiated on the target position and is coincided with the laser, and correcting the light path irradiated by the probe according to the coincidence degree detection result;

the verification correction module includes:

the image acquisition unit is used for acquiring an image of a target position on the edge sealing strip to obtain an edge sealing image and graying the edge sealing image to obtain a grayscale image;

the image processing unit is used for carrying out global pixel value detection on the gray level image, determining a first area with a pixel value within a preset range, carrying out line detection on the first area and determining a second area where a line is located;

the area analysis unit is used for performing edge interception on the second area based on line characteristics to obtain a third area with fixed length and width, setting detection precision according to the width, detecting the pixel values of the pixel points of each column in the third area, taking the pixel values of the pixel points of each column as the width of the first column, taking the maximum difference of the pixel values of the pixel points of each column in a preset difference range as the width of the second column, and taking other columns as the width of the third column;

a coincidence degree determination unit configured to set a first weight to the first column width and a second weight to the second column width based on the image accuracy of the third region, determine a total weighted width of the first column width and the second column width using the first weight and the second weight, and determine a coincidence degree between the laser light and the light path irradiated on the target position based on a ratio of the total weighted width to the width of the third region;

the contact ratio judging unit is used for judging whether the contact ratio meets the preset contact ratio requirement or not, and if so, the optical path sent by the probe is not corrected;

otherwise, correcting the light path emitted by the probe based on the difference value between the contact ratio and the preset contact ratio;

and the correction unit is used for determining the adjustment direction of the probe based on the positions of the second row width and the third row width when the optical path sent by the probe needs to be corrected, determining the adjustment amplitude of the probe based on the difference value of the contact ratio and the preset contact ratio, and correcting the optical path sent by the probe based on the adjustment direction and the adjustment amplitude.

8. The continuous laser based catch temperature sensor according to claim 1, wherein the adjustment module comprises:

the receiving unit is used for receiving the temperature signal fed back by the probe temperature measuring module and determining a real-time temperature value set in a preset time based on the temperature signal;

the temperature judging unit is used for judging the difference value between the real-time temperature value and the set temperature value in the real-time temperature value set;

if the difference value is smaller than a preset difference value range, increasing the power of the laser scanning module;

if the difference value is within the preset difference value range, keeping the power of the laser scanning module unchanged;

and if the difference is larger than a preset difference range, reducing the power of the laser scanning module.

9. The continuous laser based catch temperature sensor according to claim 8, wherein the adjustment module further comprises:

the adjustment value determining unit is used for determining a theoretical power value of the laser scanning module based on the real-time temperature value set and the current power value after determining that the power of the laser scanning module is adjusted;

and the power comparison unit is used for comparing the current power value and the theoretical power value with the power range of the laser scanning module and determining an actual power value according to a comparison result.

10. A dynamic calibration method of a continuous laser-based captive temperature sensor is characterized by comprising the following steps:

step 1: based on the optical assembly, emitting laser to a target position on the edge banding;

step 2: irradiating a light path emitted by a probe on the target position by using two reflectors, superposing the light path on the laser, and measuring the temperature of a laser drop point at the target position to obtain a real-time temperature value of the laser edge sealing;

and 3, step 3: and adjusting the power of the laser scanning module according to the difference between the real-time temperature value and the set temperature value.

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