Height measuring laser device of safety belt and measuring method therefor

Abstract

The present invention relates to a height measuring laser device of a safety belt and a measuring method therefor. The height measuring laser device comprises a laser main unit, a main laser device, and at least one auxiliary laser device. The main laser device comprises a plurality of first laser detection elements; the auxiliary laser device comprises a plurality of second laser detection elements; the main laser device and the auxiliary laser device are separately provided with a plurality of placement planes and placement slots; each placement slot is located in a placement plane, and the orientations of the placement planes are different. The present invention is provided with the main laser device and the auxiliary laser device to jointly measure the front operating height and the back operating height of an operator, which can improve the accuracy of measurement data. The present application filters the acquired operating height data and performs calculation to finally obtain the actual operating height of the operator, and transmits the operating height data to a server by means of the laser main unit for monitoring, thereby improving the level of intelligence significantly, and making the accuracy of the measured data high.

Description

A laser device for detecting the height of a seat belt and its detection method Technical Field

[0001] This invention relates to the field of high-altitude operations technology, and more specifically, to a laser device for detecting the height of a safety belt and its detection method. Background Technology

[0002] Safety belts are protective equipment mainly used to prevent people from falling. Anyone working at a fall height of 2m or more (including 2m) above the reference plane must wear a safety belt.

[0003] Currently, the level of intelligence in safety belts on the market is low, making it impossible to measure and monitor the operator's working height, which can easily lead to safety hazards. Alternatively, the method of using measuring tools to measure the safety rope to obtain the operator's working height results in inaccurate measurements. Technical issues

[0004] The technical problem to be solved by the present invention is that the existing safety belts have a low level of intelligence, cannot obtain the operator's working height or the measurement results are inaccurate. In view of the above-mentioned defects of the existing technology, a laser device for detecting the height of the safety belt and its detection method are provided. Technical solutions

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A laser device for detecting the height of a safety belt is constructed, comprising a laser host, a main laser device, and at least one auxiliary laser device. The laser host is electrically connected to both the main laser device and the auxiliary laser device. The main laser device includes a plurality of first laser detectors for detecting the working height from the rear. The auxiliary laser device includes a plurality of second laser detectors for detecting the working height from the front. The main laser device and the auxiliary laser device are each provided with a plurality of placement planes and placement slots, each placement slot being located within a placement plane, and the placement planes having different orientations. The first laser detectors and the second laser detectors are each located within a placement slot.

[0007] Furthermore, the main laser device includes an upper housing, a lower housing, and a pad, with the upper housing and the pad respectively disposed on both sides of the lower housing;

[0008] The upper housing is provided with at least one positioning post, and the lower housing and the pad are respectively provided with positioning holes corresponding to the positioning post, with the positioning post passing through the positioning hole.

[0009] Furthermore, the upper housing is provided with a plurality of first engaging portions, and the lower housing is provided with a plurality of second engaging portions corresponding to the first engaging portions;

[0010] The first laser detector is engaged between the first engaging portion and the second engaging portion.

[0011] Furthermore, each of the first engaging portions includes multiple pieces, which are arranged within the upper housing; each piece is provided with a slot, and the multiple slots form a first engaging position.

[0012] Furthermore, each of the second engaging portions includes a block, which is fixedly connected to the lower housing; the block is provided with an inclined groove, which is arc-shaped and corresponds to the first laser detector; the inclined groove includes a first inclined surface and a second inclined surface, the first inclined surface is in contact with the first surface of the first laser detector, and the second inclined surface is in contact with the second surface of the first laser detector; the first inclined surface and the second inclined surface form a second locking position; the first laser detector is respectively engaged between the first locking position and the second locking position.

[0013] Furthermore, each of the placement slots is provided with an opening; the detection ports of the first laser detector and the second laser detector are respectively facing the opening.

[0014] Furthermore, the auxiliary laser device includes a first housing, a second housing, and a fixing plate, with the first housing and the fixing plate respectively disposed on both sides of the second housing; the first housing is provided with a plurality of first fixing parts, and the second housing is provided with a plurality of second fixing parts; each first fixing part includes a third locking position; each second fixing part includes a fourth locking position; the second laser detector is respectively engaged between the third locking position and the fourth locking position.

[0015] Furthermore, each of the inclined grooves is provided with rounded corners, and the rounded corners are in contact with the first surface.

[0016] Furthermore, the main laser device includes an angle measuring component for measuring the bending angle of the human body, a communication component for receiving data, a temperature measuring component, a humidity measuring component, and a region positioning component. The angle measuring component is movably disposed between the upper housing and the lower housing. The communication component, the temperature measuring component, the humidity measuring component, and the region positioning component are respectively disposed within the upper housing.

[0017] This invention proposes a detection method for a seatbelt height detection laser device, comprising:

[0018] The operator's height is obtained through the main laser device and the auxiliary laser device;

[0019] Multiple height values ​​are obtained by the main laser device and the auxiliary laser device, and the height value with the largest value is taken as the maximum laser height.

[0020] The maximum laser height is filtered once and then filtered twice to obtain the effective laser height.

[0021] The working height is calculated based on the effective laser height.

[0022] Furthermore, the step of performing primary and secondary filtering on the maximum laser height to obtain the effective laser height includes:

[0023] First-stage filtering: Determine whether the human body curvature value is within a preset range using a preset angle measuring device; wherein, the preset range is 40°-140°;

[0024] If so, it is determined to be a valid laser height;

[0025] If not, retrieve the previously mentioned effective laser height;

[0026] Secondary filtering: Within a preset time period, the effective laser height is compared with the first maximum laser height, the second maximum laser height, and the third maximum laser height; wherein, the first maximum laser height, the second maximum laser height, and the third maximum laser height are the effective laser heights of the first three times;

[0027] If the height values ​​of the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all ≥2m, then it is determined to be high altitude, and the effective laser height is selected.

[0028] If the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all less than 2m, then it is determined to be low altitude and is not selected.

[0029] Furthermore, the calculation process for the working height is as follows:

[0030] Working height = Effective laser height - Operator's height. Beneficial effects

[0031] The beneficial effects of this invention are as follows: The use of a main laser device and an auxiliary laser device to jointly measure the operator's frontal and rear working heights improves the accuracy of the measurement data. Furthermore, the invention incorporates multiple first and second laser detectors with different orientations to adapt to changes in the operator's body angle during operation. The acquired working height data is filtered and calculated to obtain the operator's actual working height, which is then transmitted to a server via the laser host for operator monitoring. This significantly enhances the level of intelligence and ensures high accuracy of the measured data. Attached Figure Description

[0032] Figure 1 is an overall structural diagram of a seat belt height detection laser device according to an embodiment of the present invention;

[0033] Figure 2 is an exploded schematic diagram of the main laser device in one embodiment of the present invention;

[0034] Figure 3 is a three-dimensional schematic diagram of the upper shell in one embodiment of the present invention;

[0035] Figure 4 is a perspective view of the lower housing in one embodiment of the present invention;

[0036] Figure 5 is a three-dimensional schematic diagram of the first laser detector installed in the lower housing according to an embodiment of the present invention;

[0037] Figure 6 is a perspective view of the first laser detector being mounted on the lower housing at another angle in one embodiment of the present invention;

[0038] Figure 7 is an exploded schematic diagram of the auxiliary laser device in one embodiment of the present invention;

[0039] Figure 8 is a perspective view of the first housing in an embodiment of the present invention;

[0040] Figure 9 is an exploded view of the auxiliary laser device from another angle in one embodiment of the present invention;

[0041] Figure 10 illustrates a detection method using a seatbelt height detection laser device according to an embodiment of the present invention.

[0042] Labeling Explanation: Laser host 1, main laser device 2, auxiliary laser device 3, first laser detector 201, second laser detector 301, placement plane 4, placement groove 5, upper housing 202, lower housing 203, pad 204, positioning post 205, first engaging part 207, second engaging part 208, plate 209, slot 210, first locking position 211, block 212, inclined groove 213, first inclined surface 214, second inclined surface 215, first surface 216, second surface 217, second locking position 218, opening 501, detection port 219, rounded corner 220, first housing 302, second housing 303, fixing plate 304, first fixing part 305, second fixing part 306, third locking position 307, fourth locking position 308. Embodiments of the present invention

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] Please refer to Figure 1. This invention proposes a laser device for detecting the height of a seat belt, including a laser host 1, a main laser device 2, and at least one auxiliary laser device 3. The laser host 1 is electrically connected to the main laser device 2 and the auxiliary laser device 3. The main laser device 2 includes several first laser detectors 201 for detecting the working height from the rear. The auxiliary laser device 3 includes several second laser detectors 301 for detecting the working height from the front. The main laser device 2 and the auxiliary laser device 3 are respectively provided with multiple placement planes 4 and placement slots 5. Each placement slot 5 is located in each placement plane 4, and the placement planes 4 have different orientations. The first laser detectors 201 and the second laser detectors 301 are located in the placement slots 5.

[0045] In this embodiment, the main laser device 2 and the auxiliary laser device 3 are wired to the laser host 1. The auxiliary laser device 3 transmits data to the main laser device 2, which then aggregates the data and transmits it back to the laser host 1 via a data cable. The main laser device 2 can be fixed to the back of the safety belt or detachably installed on the back of the safety belt to measure the working height from the back of the operator. The auxiliary laser device 3 is located on the front of the safety belt and can measure the working height from the front of the operator. Installing the main laser device 2 and the auxiliary laser device 3 on the safety belt enables data transmission and working height measurement, making it more intelligent and enabling automatic detection.

[0046] Specifically, as shown in Figures 2 and 7, the main laser device 2 is equipped with multiple first laser detectors 201, and the auxiliary laser device 3 is equipped with multiple second laser detectors 301. The first laser detectors 201 and the second laser detectors 301 are laser rangefinders or laser range sensors. Preferably, there are five first laser detectors 201 and three second laser detectors 301, which can detect the working height of the operator from different angles.

[0047] As shown in Figure 2, the main laser device 2 and the auxiliary laser device 3 are each provided with multiple placement planes 4 and placement slots 5. The placement planes 4 are arranged in different directions, and each placement slot 5 is located within a placement plane 4. In the main laser device 2, the first laser detector 201 is located within each placement slot 5. Because the placement planes 4 are arranged in different directions, the first laser detector 201 can measure the working height at different angles. In the auxiliary laser device 3, the second laser detector 301 is located within each placement slot 5. Because the placement planes 4 are arranged in different directions, the second laser detector 301 can measure the working height at different angles.

[0048] More specifically, by adding an auxiliary laser device 3 to the main laser device 2, the operator can avoid the situation where there is an obstruction behind them when working at height, resulting in the inability to measure data or inaccurate measurement results. The addition of the auxiliary laser device 3 can further measure the working height and improve the accuracy of the data.

[0049] In one embodiment, the main laser device 2 includes an upper housing 202, a lower housing 203 and a pad 204, with the upper housing 202 and the pad 204 respectively disposed on both sides of the lower housing 203; the upper housing 202 is provided with at least one positioning post 205, and the lower housing 203 and the pad 204 are respectively provided with positioning holes corresponding to the positioning post 205, with the positioning post 205 penetrating through the positioning hole.

[0050] Specifically, as shown in Figures 2 and 3, the main laser device 2 is provided with an upper housing 202, a lower housing 203 and a pad 204. During installation, the lower housing 203 is installed on top of the pad 204. Then, the first laser detector 201 is installed and the upper housing 202 is closed. Finally, the pad 204, the lower housing 203 and the upper housing 202 are tightened and fixed by screws or bolts.

[0051] More specifically, the upper housing 202 is also provided with a positioning post 205. When installing the upper housing 202, the positioning post 205 is aligned with the corresponding positioning hole of the lower housing 203 before being inserted, which can position the upper housing 202 and avoid incorrect installation. As shown in Figure 3, the positioning post 205 can be a cylinder, in which case the positioning hole is a round hole. The positioning post 205 can also be a square post. When the positioning post 205 is a square post, the positioning hole is a square hole to cooperate with the positioning post 205 for installation.

[0052] Please refer to Figures 3 and 4. The upper housing 202 is provided with a plurality of first engaging portions 207, and the lower housing 203 is provided with a plurality of second engaging portions 208 corresponding to the first engaging portions 207. The first laser detector 201 is engaged between the first engaging portions 207 and the second engaging portions 208 respectively.

[0053] In practical implementation: the first laser detector 201 is respectively engaged between the first engaging part 207 and the second engaging part 208, which can prevent the first laser detector 201 from becoming loose during high-altitude operations and avoid inaccurate measurement results.

[0054] Please refer to Figure 3. Each first engaging part 207 includes multiple pieces 209, which are arranged in the upper housing 202. Each piece 209 is provided with a slot 210, and the multiple slots 210 form a first engaging position 211.

[0055] In specific implementation: the first engaging portion 207 includes multiple pieces 209, which are perpendicularly arranged to the inner top surface of the upper housing 202, and the multiple pieces 209 are evenly distributed on the inner top surface of the upper housing 202. Each of the multiple pieces 209 is provided with a slot 210, and the multiple slots 210 form a first engaging position 211, which can engage part of the first laser detector 201 inside the upper housing 202.

[0056] Please refer to Figures 4-6. Each second engaging portion 208 includes a block 212, which is fixedly connected to the lower housing 203. The block 212 is provided with an inclined groove 213, which is arc-shaped and corresponds to the first laser detector 201. The inclined groove 213 includes a first inclined surface 214 and a second inclined surface 215. The first inclined surface 214 is in contact with the first surface 216 of the first laser detector 201, and the second inclined surface 215 is in contact with the second surface 217 of the first laser detector 201. The first inclined surface 214 and the second inclined surface 215 form a second engaging position 218. The first laser detector 201 is engaged between the first engaging position 211 and the second engaging position 218.

[0057] In specific implementation: the second engaging portion 208 is correspondingly provided with the first engaging portion 207, with one second engaging portion 208 corresponding to one first engaging portion 207, thus fixing the first laser detector 201. Each body 212 is provided with an inclined groove 213, which is arc-shaped and its angle corresponds to the shape of the first laser detector 201 to better fit the first laser detector 201. In addition, the inclined groove 213 includes a first inclined surface 214 and a second inclined surface 215. After the first laser detector 201 is placed in the inclined groove 213, the first inclined surface 214 can fit with the first surface 216 of the first laser detector 201, and the second inclined surface 215 can fit with the second surface 217 of the first laser detector 201. Among them, the first surface 216 is the bottom surface of the first laser detector 201, and the second surface 217 is the back surface of the first laser detector 201. The first inclined surface 214 is connected to the second inclined surface 215 and forms the second locking position 218. The first locking position 211 and the second locking position 218 together restrict the first laser detector 201, which can prevent the first laser detector 201 from being displaced and affecting the measurement results.

[0058] Please refer to Figures 4 and 5. The inclined groove 213 is provided with a rounded corner 220, which contacts the first surface 216.

[0059] In practical implementation: the inclined groove 213 is provided with a rounded corner 220, which can have a buffering effect compared with the contact of the bend, making it less prone to wear and improving its service life.

[0060] Please refer to Figure 2. The placement slot 5 is provided with an opening 501. The detection ports 219 of the first laser detector 201 and the second laser detector 301 are respectively facing the opening 501.

[0061] In specific implementation: the detection ports 219 of the first laser detector 201 and the second laser detector 301 are respectively installed facing the direction of the opening 501 to project lasers to detect the height.

[0062] Please refer to Figure 7. The auxiliary laser device 3 includes a first housing 302, a second housing 303, and a fixing plate 304. The first housing 302 and the fixing plate 304 are respectively disposed on both sides of the second housing 303.

[0063] In practical implementation: the auxiliary laser device 3 includes a first housing 302, a second housing 303, and a fixing plate 304. The first housing 302 and the second housing 303 are each provided with multiple mounting holes. After aligning the mounting holes on the first housing 302 with the mounting holes on the second housing 303, they are fixed using screws or pins. The fixing plate 304 also has mounting holes and can be installed on a seatbelt, thereby securing the auxiliary laser device 3.

[0064] Please refer to Figures 8 and 9. The first housing 302 is provided with a plurality of first fixing parts 305, and the second housing 303 is provided with a plurality of second fixing parts 306. Each first fixing part 305 includes a third locking position 307. Each second fixing part 306 includes a fourth locking position 308. The second laser detector 301 is respectively engaged between the third locking position 307 and the fourth locking position 308.

[0065] In specific implementation: the first fixing part 305 is located on the inner surface of the first housing 302, and the second fixing part 306 is located on the upper surface of the second housing 303. After the second laser detector 301 is installed in the fourth locking position 308 provided in the second housing 303, the first housing 302 is closed. At this time, the third locking position 307 provided in the first housing 302 can just contact the second laser detector 301 and fix the second laser detector 301 together with the fourth locking position 308.

[0066] Please refer to Figure 2. The main laser device 2 includes an angle measuring component for measuring the bending angle of the human body, a communication component for receiving data, a temperature measuring component, a humidity measuring component, and an area positioning component. The angle measuring component is movably disposed between the upper housing 202 and the lower housing 203. The communication component, temperature measuring component, humidity measuring component, and area positioning component are respectively disposed inside the upper housing 202.

[0067] In practical implementation: The angle measuring device is a gyroscope, capable of measuring the bending angle of the operator during operation. The communication device is a data receiving module, capable of receiving data from other components on the safety belt, such as hooks and buckles. The temperature measuring device is a thermometer, capable of measuring the temperature of the operator's working environment. The humidity measuring device is a hygrometer, capable of measuring the humidity of the working environment. After measuring temperature and humidity, the operator's environment can be monitored in a timely manner, preventing the operator from working in harsh conditions. The area positioning device is a UWB module (Ultra Wide Band, wireless communication carrier module), capable of identifying the operator's working area to determine whether the operator is within the designated working area.

[0068] Please refer to Figure 10. This invention proposes a detection method for a seatbelt height detection laser device, including:

[0069] S1, the operator's height value is obtained through the main laser device 2 and the auxiliary laser device 3;

[0070] S2, obtain height values ​​from multiple angles through the main laser device 2 and the auxiliary laser device 3, and take the height value with the largest value as the maximum laser height;

[0071] S3, the maximum laser height is filtered once and then filtered twice to obtain the effective laser height;

[0072] S3-1, First-time filtering: Determines whether the human body curvature value is within a preset range using a preset angle measuring device; wherein, the preset range is 40°-140°;

[0073] S3-2, if yes, then it is determined to be a valid laser height; if no, then the previous valid laser height is retrieved.

[0074] S3-3, Secondary Filtering: Within a preset time period, the effective laser height is compared with the first maximum laser height, the second maximum laser height, and the third maximum laser height; wherein, the first maximum laser height, the second maximum laser height, and the third maximum laser height are the effective laser heights of the first three times;

[0075] S3-4, if the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all ≥2m, then it is determined to be high altitude, and the effective laser height is selected; if the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all <2m, then it is determined to be low altitude, and it is not selected.

[0076] S4 calculates the working height based on the effective laser height.

[0077] In this embodiment, after the main laser device 2 is powered on, the operator's height is measured first. The current laser height after power-on is then taken as the operator's height, thus obtaining the operator's height value. Next, the first laser detector 201 of the main laser device 2 and the second laser detector 301 of the auxiliary laser device 3 measure the operator's working height at different angles, obtaining multiple height values. The laser host 1 contains a controller that acquires the height values ​​and selects the highest value as the maximum laser height. The operator's working posture at different angles during operation will affect the calculation of the working height. Since climbing is impossible when the human body is bent at an excessively high angle, the maximum laser height is only valid when the operator is standing normally or bending slightly. Therefore, the obtained maximum laser height is first filtered. Specifically, the angles of the human body's bending along the X, Y, and Z axes are measured using a gyroscope. The height is selected only when the human body's bending value is between 40° and 140°. The range of the human body's bending value can be optimized according to actual needs. If it is not within the preset range, the previously valid laser height is retrieved. Next, a secondary filtering process is performed, comparing the current effective laser height with the three consecutive effective laser heights from the previous three periods: the first maximum laser height, the second maximum laser height, and the third maximum laser height. In one specific embodiment, the preset time period is 1 second. If the height values ​​of the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height, all spaced 1 second apart, are all ≥2m, then the height is determined to be high altitude, and this effective height is selected. If the height values ​​of the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height, all spaced 1 second apart, are all <2m, then the height is determined to be low altitude, and this height is not selected, thus reducing false positives. Finally, the most effective laser height is calculated to obtain the working height. The calculation process for the working height is: Working height = Effective laser height - Operator's height.

[0078] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0079] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A seatbelt height detection laser device, characterized in that, It includes a laser host, a main laser device, and at least one auxiliary laser device, wherein the laser host is electrically connected to the main laser device and the auxiliary laser device respectively; The main laser device includes several first laser detection elements for detecting the working height at the back; The auxiliary laser device includes several second laser detection elements for detecting the height of the frontal operation; The main laser device and the auxiliary laser device are respectively provided with multiple placement planes and placement slots, each placement slot is located in each placement plane, and the placement planes have different orientations; The first laser detector and the second laser detector are respectively located in the placement slot.

2. The seatbelt height detection laser device according to claim 1, characterized in that, The main laser device includes an upper housing, a lower housing, and a pad, with the upper housing and the pad respectively disposed on both sides of the lower housing; The upper housing is provided with at least one positioning post, and the lower housing and the pad are respectively provided with positioning holes corresponding to the positioning post, with the positioning post passing through the positioning hole.

3. The seatbelt height detection laser device according to claim 2, characterized in that, The upper housing is provided with a plurality of first engaging portions, and the lower housing is provided with a plurality of second engaging portions corresponding to the first engaging portions; The first laser detector is engaged between the first engaging portion and the second engaging portion.

4. The seatbelt height detection laser device according to claim 3, characterized in that, Each of the first engaging portions includes a plurality of pieces, which are arranged in the upper housing. Each of the aforementioned sheet bodies is provided with a slot, and the multiple slots form a first locking position.

5. The seatbelt height detection laser device according to claim 4, characterized in that, Each of the second engaging portions includes a block, which is fixedly connected to the lower housing; The block is provided with an inclined groove, which is arc-shaped and corresponds to the first laser detection element; The inclined groove includes a first inclined surface and a second inclined surface, the first inclined surface being in contact with a first surface of the first laser detector, and the second inclined surface being in contact with a second surface of the first laser detector; The first inclined surface and the second inclined surface form a second locking position; The first laser detector is respectively engaged between the first locking position and the second locking position.

6. The seatbelt height detection laser device according to claim 1, characterized in that, The placement slots are each provided with an opening; the detection ports of the first laser detector and the second laser detector are respectively facing the openings.

7. The seatbelt height detection laser device according to claim 1, characterized in that, The auxiliary laser device includes a first housing, a second housing, and a fixing plate, wherein the first housing and the fixing plate are respectively disposed on both sides of the second housing; The first housing is provided with a plurality of first fixing parts, and the second housing is provided with a plurality of second fixing parts; Each of the first fixing parts includes a third locking position; Each of the second fixing parts includes a fourth locking position; The second laser detector is respectively engaged between the third and fourth locking positions.

8. The seatbelt height detection laser device according to claim 5, characterized in that, The inclined grooves are respectively provided with rounded corners, and the rounded corners are in contact with the first surface.

9. The seatbelt height detection laser device according to claim 2, characterized in that, The main laser device includes an angle measuring component for measuring the bending angle of the human body, a communication component for receiving data, a temperature measuring component, a humidity measuring component, and an area positioning component. The angle measuring component is movably disposed between the upper housing and the lower housing. The communication component, the temperature measuring component, the humidity measuring component, and the area positioning component are respectively disposed inside the upper housing.

10. A detection method for a seatbelt height detection laser device, characterized in that, include: The operator's height is obtained through the main laser device and the auxiliary laser device; Multiple height values ​​are obtained by the main laser device and the auxiliary laser device, and the height value with the largest value is taken as the maximum laser height. The maximum laser height is filtered once and then filtered twice to obtain the effective laser height. The working height is calculated based on the effective laser height.

11. The detection method of the seat belt height detection laser device according to claim 10, characterized in that, The step of performing primary and secondary filtering on the maximum laser height to obtain the effective laser height includes: First-stage filtering: Determine whether the human body curvature value is within a preset range using a preset angle measuring device; wherein, the preset range is 40°-140°; If so, it is determined to be a valid laser height; If not, retrieve the previously mentioned effective laser height; Secondary filtering: Within a preset time period, the effective laser height is compared with the first maximum laser height, the second maximum laser height, and the third maximum laser height; wherein, the first maximum laser height, the second maximum laser height, and the third maximum laser height are the effective laser heights of the first three times; If the height values ​​of the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all ≥2m, then it is determined to be high altitude, and the effective laser height is selected. If the effective laser height, the first maximum laser height, the second maximum laser height, and the third maximum laser height are all less than 2m, then it is determined to be low altitude and is not selected.

12. The detection method of the seat belt height detection laser device according to claim 10, characterized in that, The calculation process for the working height is as follows: Working height = Effective laser height - Operator's height.

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