CN115031869A - Capture type temperature sensor based on continuous laser and dynamic calibration method thereof - Google Patents
Capture type temperature sensor based on continuous laser and dynamic calibration method thereof Download PDFInfo
- Publication number
- CN115031869A CN115031869A CN202210628861.9A CN202210628861A CN115031869A CN 115031869 A CN115031869 A CN 115031869A CN 202210628861 A CN202210628861 A CN 202210628861A CN 115031869 A CN115031869 A CN 115031869A
- Authority
- CN
- China
- Prior art keywords
- probe
- laser
- temperature
- determining
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 126
- 230000003287 optical effect Effects 0.000 claims abstract description 68
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 15
- 230000001678 irradiating effect Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 69
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003068 static effect Effects 0.000 claims description 14
- 238000012937 correction Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 7
- 238000012795 verification Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 238000004861 thermometry Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 7
- 230000000391 smoking effect Effects 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 7
- 238000010408 sweeping Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Length Measuring Devices By Optical Means (AREA)
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
Technical Field
The invention relates to the technical field of laser edge sealing, in particular to a capture type temperature sensor based on continuous laser and a dynamic calibration method thereof.
Background
The edge sealing is an indispensable procedure in the production of panel furniture, and is characterized in that hot melt adhesive is used for adhering an edge sealing belt to a cutting surface of a panel, excess materials at the head and the tail are cut off through an aligning mechanism, a rough trimming mechanism trims redundant edge sealing belts protruding out of the upper surface and the lower surface of a workpiece, a finishing mechanism trims the upper horizontal edge and the lower horizontal edge of the trimmed edge sealing belt into fillets, a tracking chamfering mechanism trims the front vertical edge and the rear vertical edge and the four corners of the edge sealing belt into fillets, an edge scraping mechanism trims knife lines generated during the operation of the finishing mechanism, and a polishing mechanism carries out final polishing operation on the corners processed by the procedures.
Traditional laser banding utilizes the glue film of laser irradiation banding strip, after pressing the wheel, makes the banding strip laminating at the face, reaches the banding effect, but traditional laser banding, at the banding in-process, can be because mechanical card is pause, the motion factor of banding strip leads to the banding strip serious problem such as the fire of smoking.
Disclosure of Invention
The invention relates to a capture type temperature sensor based on continuous laser and a dynamic calibration method thereof, which solve the problem of smoking and firing in the edge sealing process and ensure that the edge sealing is more stable and has better quality.
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.
Preferably, the laser scanning module includes:
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.
Preferably, the probe thermometry module includes:
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 the emission light path of the probe;
and the temperature measuring submodule is used for detecting the temperature of the fixed position point of the probe, so that the real-time temperature value of the laser edge sealing is obtained.
Preferably, the probe submodule includes:
the law analysis unit is used for analyzing the law of the light 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.
Preferably, the temperature measuring submodule includes:
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 fixed position point 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.
Preferably, the establishing sub-module includes:
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 that any one of the dynamic setting changes in the emission dynamic parameter range of the probe and the angle adjusting range of the two reflectors is a corresponding first single change rule, a second single change rule and a third single change rule 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 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 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.
Preferably, the method further comprises the following steps: 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 overall pixel value detection on the gray level image, determining a first area of a pixel value in 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 light 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.
Preferably, the adjusting module includes:
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.
Preferably, the adjusting 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.
A method for dynamic calibration of a continuous laser based captive temperature sensor, comprising:
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 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.
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 will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a continuous laser based captive temperature sensor in an embodiment of the present invention;
FIG. 2 is a diagram illustrating a structure of a probe temperature measurement module according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for dynamic calibration of a continuous laser based trapping temperature sensor according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
A continuous laser based captive temperature sensor, as shown in fig. 1, 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.
In this embodiment, the optical assembly includes several mirrors, beam splitters, etc. to assist in determining the laser emission direction and ensure the accuracy of the laser emission to the target location.
In this embodiment, the target position is a line, and the laser scanning module dynamically emits laser to the line in sequence.
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 smaller 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 above-mentioned design is: according to the invention, laser is swept on the edge sealing strip through the optical component, the temperature measuring probe module is arranged, the light path of the temperature measuring probe is overlapped with the laser light path through the two reflectors and falls on the same point of the edge sealing strip, the temperature measuring probe measures the laser falling point at high speed after the laser sweeping module emits light, the measured temperature is higher than the set temperature, the laser sweeping module is controlled to reduce the power, the power is increased when the temperature is lower than the set temperature, and the temperature is always in a proper range, so that the problem of smoke and fire generation in the edge sealing process is solved, and the edge sealing is more stable and better in quality.
Example 2
Based on embodiment 1, an embodiment of the present invention provides a continuous laser based trapping temperature sensor, where the laser scanning module includes:
the positioning unit is used for presetting and specifying 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.
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 a laser emission angle, a laser emission moving distance, and the like, and it is ensured that the set working parameters meet the scanning position requirement.
The beneficial effect of above-mentioned design is: pass through optical assembly through laser and scan on the banding strip, guarantee the quality of banding, simultaneously, for providing the basis to the temperature measurement on the banding strip.
Example 3
Based on embodiment 1, an embodiment of the present invention provides a continuous laser based trapping temperature sensor, as shown in fig. 2, the probe temperature measurement module includes:
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 the 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.
In this embodiment, the optical path regularity is used to reflect the path regularity of the optical path emitted by the probe in different orientations after passing through the two mirrors.
In this embodiment, the location point at which the probe is located is at the target location.
The beneficial effect of above-mentioned design is: through establishing the probe and being in the light path route law under two speculums, the light path of having guaranteed the probe transmission is accurate to correspond with the position of laser, lets temperature measurement and laser cooperation better, lets the position of falling point and temperature measurement position be in the same point of banding area, through implementing the temperature that detects the position of falling point, and then solves prior art, the unable accurate temperature that detects the laser focus point, has the technical problem of potential safety hazard.
Example 4
Based on embodiment 3, the captured continuous laser-based temperature sensor is characterized in that the probe submodule includes:
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.
In this embodiment, the optical path of the light emitted by the probe is sequentially emitted from the probe, passes through the first reflector, the second reflector, and finally falls to the target position.
In this embodiment, the light which the probe should theoretically emit is determined from the target position via the second mirror and the first mirror in reverse by the optical path law.
In this embodiment, the emission parameters include the emission angle of the probe, the intensity of the emitted light, and the like.
The beneficial effect of above-mentioned design is: according to the law of the path of the light path, when the light path emitted by the probe is reversely pushed out to be accurately emitted to the target position through the first reflector and the second reflector, the emission parameters of the probe are ensured to be accurately emitted to the target position through reverse derivation, and a foundation is provided for temperature measurement of the target position.
Example 5
Based on embodiment 3, the invention provides a continuous laser based capture type temperature sensor, and the temperature measurement sub-module includes:
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 fixed position point 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.
In this embodiment, the requirement for correcting the first temperature value is to make the corrected temperature value satisfy the temperature trend and the temperature range.
The beneficial effect of above-mentioned design is: the temperature value detected by the probe is corrected by combining the temperature values before and after the fixed position point, so that the measured temperature value is ensured to meet the change rule of the temperature in the laser edge sealing process, and the determined real-time temperature value is ensured to better reflect the temperature of the laser edge sealing.
Example 6
Based on embodiment 3, an embodiment of the present invention provides a continuous laser based captive temperature sensor, where the building sub-module includes:
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 that any one of the dynamic setting changes in the emission dynamic parameter range of the probe and the angle adjusting ranges of the two reflectors is a corresponding first single change rule, a corresponding second single change rule and a corresponding third single change rule 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 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 obtained when all the dynamic settings are changed;
and the total rule determining unit is used for determining the influence relationship among all the 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 the rule points based on the influence relationship, and obtaining the dynamically-changeable light path rule based on the triple change rule by using the dynamic rule setting.
In this embodiment, the optical path emission environment static model is used to simulate the position relationship between the probe and the two reflectors, and the position relationship between the probe and the two reflectors can be accurately represented and visually displayed through the model.
In this embodiment, the emission dynamic parameter range of the probe and the angle adjustment range of the two reflectors are determined according to the type of the probe and the installation positions of the two reflectors.
In this embodiment, the optical path emission environment dynamic model may adjust the emission dynamic parameter ranges and the angle adjustment ranges of the probe and the two mirrors on the basis of the optical path emission environment static model to obtain the optical path emission environment dynamic model, thereby achieving the optical path change acquisition 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 the change rule of the optical path when only the emission dynamic parameter range of the probe, the angle adjustment range of the first reflecting mirror, and the angle adjustment range of the second reflecting mirror are changed, respectively.
In this embodiment, the dual change rule set corresponds to a change rule of a path of the optical path when any two parameters of an emission dynamic parameter range of the probe, an angle adjustment range of the first reflecting mirror and an angle adjustment range of the second reflecting mirror are changed.
In this embodiment, the triple change rule is to adjust the emission dynamic parameter range of the probe, the angle adjustment range of the first reflecting mirror, and the angle adjustment range of the second reflecting mirror, so as to obtain the change rule of the path of the optical path during the full adjustment.
In this embodiment, when the range of the emission dynamic parameter of the probe is changed, the optical paths of the two reflectors are affected, and when the range of the angle adjustment of the first reflector is changed, the optical path of the second reflector is affected, which is expressed 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 law, the dynamic law setting is specifically to determine the influence laws among the probe, the first reflecting mirror and the second reflecting mirror according to the influence relationship, and perform dynamic law setting, so that the dynamically changeable optical path law can be updated in time when the probe, the first reflecting mirror and the second reflecting mirror are changed at will, and the obtained optical path law can meet the change of the path law caused by the change of the actual parameters.
The beneficial effect of above-mentioned design is: the optical path law that the probe can be dynamically changed under the two reflectors is established based on the position relation between the probe and the two reflectors, and the optical path law is timely updated when the probe, the first reflector and the second reflector are randomly changed, so that the obtained optical path law meets the path law change brought by actual parameter change, and the probe transmitting optical path is guaranteed to be accurate and serve as the national theoretical basis.
Example 7
Based on embodiment 1, an embodiment of the present invention provides a continuous laser based trapping temperature sensor, further including: the verification and correction module is used for determining the contact ratio between the laser and the light path irradiated on the target position after the light path emitted by the probe is irradiated on the target position and is superposed with the laser, and correcting the light path emitted by the probe according to the contact ratio 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 determining 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 light 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.
In this embodiment, the first region where the pixel value is within the preset range is the region where the edge sealing operation is performed.
In this embodiment, the second area is an area for detecting the edge sealing, and the third area is an area for standardizing and standardizing the detection area on the basis of the second area, so that the contact ratio can be conveniently judged.
In this embodiment, the pixel values of the pixels in each row are equal to each other, which indicates that the positions irradiated by the laser and the light path at the corresponding position of the row are overlapped, the maximum difference of the pixel values of the pixels in each row is the difference between the maximum pixel value and the minimum pixel value of the pixel, which indicates that the positions irradiated by the laser and the light path at the corresponding position of the row are partially overlapped, and the other rows indicate that the positions irradiated by the laser and the light path are not overlapped at all.
In this embodiment, if the image accuracy of the third area is higher, the correspondingly set first weight is smaller, and the second weight is larger; on the contrary, the correspondingly set first weight is larger, and the second weight is smaller, so that the error of the judgment of the overlapping degree caused by the difference of the image precision of the third area can be avoided.
The beneficial effect of above-mentioned design is: before the temperature measurement probe measures the temperature of the laser drop point, the coincidence degree between the laser and the light path irradiation on the target position is determined through the verification correction module, the light path emitted by the probe is corrected according to the coincidence degree detection result, the accuracy of the temperature measured by the probe on the position is ensured, the measured temperature is ensured to reflect the actual temperature in the laser drop point edge sealing process, and an accurate data basis is provided for the power control of the follow-up control laser scanning module.
Example 8
Based on embodiment 1, an embodiment of the present invention provides a continuous laser based trapping temperature sensor, where the adjusting module includes:
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.
The beneficial effect of above-mentioned design is: through right the temperature that comes from probe temperature measurement module carries out the comparison, and the temperature is higher than the temperature that sets up, then controls laser and sweeps the module and reduce power, than setting up the temperature lowly, then rising power makes the temperature be in suitable scope all the time to solve the problem that the banding in-process smokes and catches fire, let the banding more stable quality better.
Example 9
Based on embodiment 8, an embodiment of the present invention provides a continuous laser based trapping temperature sensor, where the adjusting module further includes:
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;
calculating the theoretical power value Δ P according to the following formula r ；
Wherein, tau t Representing a difference amplitude determined by a difference between a real-time temperature value and a set temperature value in the real-time temperature value set, the difference amplitude having a value of (-1.0, 1.0), P d Representing said current power value, T d Represents an edge seal temperature value at the current power value,
representing the power, T, of the laser scanning module required to achieve an average real-time temperature value in said set of real-time temperature values c An average real-time temperature value representing the set of real-time temperature values, n representing the number of real-time temperature values in the set of real-time temperature values, θ t The lifting amplitude value of the real-time temperature value set is represented as (-1.0, 1.0), delta P i Representing the power of a laser scanning module required for realizing the ith real-time temperature value in the real-time temperature value set;
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;
calculating the actual adjustment power value Δ P according to the following formula s ；
Wherein, P b Represents the power range, P, of the laser scanning module bmax Represents the maximum value of the power range of the laser scanning module, 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 and the set temperature value in the real-time temperature value set is, the larger the corresponding determined difference amplitude is.
In this embodiment, the ratio of the current power value and the corresponding edge sealing temperature value to the average real-time temperature value in the real-time temperature value set and the power of the laser scanning module required by the average real-time temperature value is used as an influence factor for determining the theoretical power value, and the influence of the power of the laser scanning module on the specific value of the temperature is neutralized and considered, so that the obtained theoretical power value more accurately meets the requirement on the edge sealing temperature.
In this embodiment, when the theoretical power value is not within the power range of the laser scanning module, the theoretical power value is usually greater than the power range, and at this time, the theoretical power value needs to be adjusted according to a relationship between a current power value and the power range, so that the obtained actual power value is within the power range.
In this embodiment, in general
In this embodiment, for the formula
For example, P may be d ＝7KW，τ t ＝0.9，θ t ＝0.9，
Then Δ P r ＝10.4KW。
In the case of the embodiment shown in the figure,
for example, P may be bmax ＝9KW，P bmin ＝1KW，ΔP s ＝7KW。
The beneficial effect of above-mentioned design is: through the real-time temperature value set and the current power value, the theoretical power value of the laser scanning module is determined, the reasonable actual power value is determined by combining the specific power requirement of the laser emitting module, the temperature is guaranteed to be always in a proper range, and meanwhile, the laser scanning module is protected, so that the problem that smoke and fire are generated in the edge sealing process is solved, and the edge sealing is more stable and better in quality.
Example 10
A method for dynamic calibration of a continuous laser based captive temperature sensor, as shown in fig. 3, comprises:
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 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.
The beneficial effect of above-mentioned design is: according to the invention, laser is swept on the edge sealing strip through the optical assembly, the temperature measuring probe module is arranged, the light path of the temperature measuring probe is overlapped with the light path of the laser through the two reflectors and falls on the same point of the edge sealing strip, the temperature measuring probe measures the laser falling point at high speed after the laser sweeping module emits light, the measured temperature is higher than the set temperature, the laser sweeping module is controlled to reduce the power, the power is increased if the temperature is lower than the set temperature, and the temperature is always in a proper range, so that the problem of smoke and fire in the edge sealing process is solved, and the edge sealing is more stable and has better quality.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such 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 such 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628861.9A CN115031869A (en) | 2022-06-06 | 2022-06-06 | Capture type temperature sensor based on continuous laser and dynamic calibration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628861.9A CN115031869A (en) | 2022-06-06 | 2022-06-06 | Capture type temperature sensor based on continuous laser and dynamic calibration method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115031869A true CN115031869A (en) | 2022-09-09 |
Family
ID=83123146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210628861.9A Pending CN115031869A (en) | 2022-06-06 | 2022-06-06 | Capture type temperature sensor based on continuous laser and dynamic calibration method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115031869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534049A (en) * | 2022-09-21 | 2022-12-30 | 江苏华工激光科技有限公司 | Method applied to change of edge sealing power of wood board |
| CN116174964A (en) * | 2023-03-06 | 2023-05-30 | 广东豪德数控装备股份有限公司 | System for utilize infrared temperature measurement monitoring edge banding adjustment laser power |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106342174B (en) * | 2007-06-07 | 2011-09-28 | 西安工业大学 | Laser gyro loss of resonator measurement mechanism and method |
| CN204747782U (en) * | 2015-06-17 | 2015-11-11 | 科洛德激光设备(深圳)有限公司 | Temperature monitoring's laser beam machining device can carry out |
| CN206047346U (en) * | 2016-08-31 | 2017-03-29 | 深圳市艾尔摩迪精密科技有限公司 | Based on laser welding weld point temperature real time monitoring apparatus |
| CN110340516A (en) * | 2019-06-21 | 2019-10-18 | 苏州市长峰激光技术有限公司 | A kind of laser process equipment and processing method based on temperature detection |
| CN111337901A (en) * | 2020-04-03 | 2020-06-26 | 深圳煜炜光学科技有限公司 | Laser radar for remote detection and detection method thereof |
| CN112697698A (en) * | 2020-11-27 | 2021-04-23 | 中国人民解放军空军工程大学 | Double-beam synergistic laser shock wave binding force detection device and method |
| CN113934234A (en) * | 2021-10-25 | 2022-01-14 | 航天科工微电子系统研究院有限公司 | Optical method of light beam tracking control equipment |
-
2022
- 2022-06-06 CN CN202210628861.9A patent/CN115031869A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106342174B (en) * | 2007-06-07 | 2011-09-28 | 西安工业大学 | Laser gyro loss of resonator measurement mechanism and method |
| CN204747782U (en) * | 2015-06-17 | 2015-11-11 | 科洛德激光设备(深圳)有限公司 | Temperature monitoring's laser beam machining device can carry out |
| CN206047346U (en) * | 2016-08-31 | 2017-03-29 | 深圳市艾尔摩迪精密科技有限公司 | Based on laser welding weld point temperature real time monitoring apparatus |
| CN110340516A (en) * | 2019-06-21 | 2019-10-18 | 苏州市长峰激光技术有限公司 | A kind of laser process equipment and processing method based on temperature detection |
| CN111337901A (en) * | 2020-04-03 | 2020-06-26 | 深圳煜炜光学科技有限公司 | Laser radar for remote detection and detection method thereof |
| WO2021197403A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳煜炜光学科技有限公司 | Lidar for long-distance detection and detection method therefor |
| CN112697698A (en) * | 2020-11-27 | 2021-04-23 | 中国人民解放军空军工程大学 | Double-beam synergistic laser shock wave binding force detection device and method |
| CN113934234A (en) * | 2021-10-25 | 2022-01-14 | 航天科工微电子系统研究院有限公司 | Optical method of light beam tracking control equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534049A (en) * | 2022-09-21 | 2022-12-30 | 江苏华工激光科技有限公司 | Method applied to change of edge sealing power of wood board |
| CN116174964A (en) * | 2023-03-06 | 2023-05-30 | 广东豪德数控装备股份有限公司 | System for utilize infrared temperature measurement monitoring edge banding adjustment laser power |
| CN116174964B (en) * | 2023-03-06 | 2024-06-18 | 广东豪德数控装备股份有限公司 | System for utilize infrared temperature measurement monitoring edge banding adjustment laser power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115031869A (en) | Capture type temperature sensor based on continuous laser and dynamic calibration method thereof | |
| US5463202A (en) | Laser machining apparatus and method | |
| AU663397B2 (en) | Measurement of transparent container wall thickness | |
| JP3613708B2 (en) | Cross-sectional shape measuring device | |
| CN107957237A (en) | Laser-projector with flash of light alignment | |
| US20020036779A1 (en) | Apparatus for measuring three-dimensional shape | |
| US9134117B2 (en) | Distance measuring system and distance measuring method | |
| CN110497075B (en) | Galvanometer correction system and galvanometer correction method | |
| CN102455171B (en) | Method for detecting geometric shape of back of tailor-welding weld and implementing device thereof | |
| CN111174702B (en) | Adaptive structured light projection module and measurement method | |
| US5889582A (en) | Image-directed active range finding system | |
| CN111009013B (en) | Vibrating mirror calibration method for dicing saw | |
| US20190160599A1 (en) | Laser machining device warning of anomaly in external optical system before laser machining | |
| US6509964B2 (en) | Multi-beam apparatus for measuring surface quality | |
| EP2834034A1 (en) | A method and a system for color marking of metals | |
| CN210451366U (en) | Galvanometer correction system | |
| CN113483682A (en) | Gap measuring method and system based on machine vision | |
| CN110726382B (en) | Device and method for detecting the surface of an object by means of an electromagnetic beam | |
| CN113483892B (en) | Multispectral image measurement system and multispectral image measurement method | |
| CN113195148A (en) | Method for detecting working area of production device and production device for producing component from powder material | |
| CN113305418A (en) | Coaxial focus searching device for laser processing and laser processing method | |
| US9074874B2 (en) | Coating detection on transparent sheet material | |
| CN108406124B (en) | Laser marking method and system | |
| CN115308216B (en) | Device and method for online detection of aluminum profile surface defects | |
| CN110567920A (en) | detection system for haze of transparent or semitransparent glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 528000, one of the 10-3 plots in Fu'an Industrial Zone (Phase I), Xin'an Village, Leliu Street, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Haode CNC Equipment Co.,Ltd. Address before: 528000 one of plot b07-02, intensive industrial zone, Xiyong village committee, Lunjiao, Shunde District, Foshan City, Guangdong Province Applicant before: Foshan Haode CNC Machinery Co.,Ltd. Country or region before: China |