Intelligent safety belt environment risk monitoring and identifying method and identifying device

Abstract

The application discloses a smart safety belt environment risk monitoring and identifying method and an identifying device, which comprises a shell, a distance measuring laser, a controller, a micro stepping motor, a loudspeaker, a sound pickup, a red LED lamp, an inclination sensor and a rechargeable battery, and a scanning table arranged on the side of the shell; the identifying device is worn on the safety belt; the distance measuring laser of the identifying device is provided with the inclination sensor; the inclination sensor swings along with the distance measuring laser and collects the swept angle value of the distance measuring laser; the distance data collected by the distance measuring module after the distance is measured is transmitted to the storage module for storage at the same time as the swept angle value collected by the inclination sensor; the data analysis and comparison module analyzes the effective plane distance value and the superplane distance value, generates a two-dimensional plane model, calculates the walking and stepping edge interval, then gives an alarm and a risk prompt, enhances the safety of aerial work, reduces the falling risk, and the mobile terminal of the communication connection manager carries out safety supervision and management.

Description

Technical Field

[0001] This invention belongs to the field of high-altitude operation safety warning technology, and mainly relates to intelligent safety belt environmental risk monitoring and identification method and identification device. Background Technology

[0002] Currently, due to the special nature of the working environment, workers often walk and step on narrow working passages when working at heights. Therefore, if workers are careless, their legs may extend out of the working passage, which can be dangerous and sometimes even lead to falls. When working at heights, ground-based managers cannot immediately know the safety situation and cannot supervise and manage the safety of the workers. Therefore, there is an urgent need for a safety device that can identify the boundaries of the tread surface in narrow work passages in the work environment. They also reminded workers that they were at a dangerous point where they might step on the boundary and to take precautions in time; at the same time, they provided safety supervision and reminders to ground management personnel. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing an intelligent safety belt environmental risk monitoring and identification device and method. This portable environmental risk identification device, worn on a safety belt, uses laser scanning to identify the surface underfoot in high-altitude environments, identifies the boundaries of the footsteps, and provides risk warnings, thereby enhancing the safety of high-altitude operations, reducing the risk of falls, and facilitating safety supervision and management. To achieve the above objectives, the technical solution adopted by the present invention is as follows: The method for monitoring and identifying environmental risks of smart seat belts includes the following steps: S1. The ranging laser emitted by the ranging laser performs an arc-shaped oscillating sweeping motion in front of the operator's chest to measure the distance. S2. The tilt sensor follows the swing of the ranging laser and collects the sweep angle value of the ranging laser. S3. Each time the ranging laser sweeps, the distance data collected by the ranging module after laser scanning and ranging is combined with the sweep angle value collected by the tilt sensor into a data group, and then transmitted to the storage module for storage. S4. During the swinging and sweeping process of the range measuring laser, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the station where the operator is standing, and the sweeping angle value is 90 degrees. S5. The data analysis and comparison module analyzes several distance data and sweep angle values ​​stored in the data storage module, analyzes the distance data associated with each angle value, and compares and identifies several distance data in the shorter distance range and several distance data in the longer distance range identified by laser ranging. The shorter interval contains several distance data points that are effective planar distance values, and the longer interval contains several distance data points that are hyperplane distance values ​​that are longer than the effective plane. S6. The analysis and judgment module selects the effective plane distance value before the first hyperplane distance value on one side of the plate and the effective plane distance value before the first hyperplane distance value on the other side of the plate from the same set of data, and combines the swing angle value associated with the effective plane distance values ​​on both sides to calculate the included angle between the two distance values. Then, it calculates the length value L between the included angle of the two distance values, which is the plate width value, by combining the effective plane distance values ​​on both sides. S7. From the effective plane distance values ​​on both sides, obtain the angle between the effective plane distance value on one side and the effective plane distance value of the station, and the angle between the effective plane distance value on the other side and the effective plane distance value of the station. S8. The analysis and judgment module calculates the angle length between the effective horizontal distance value of the station and the effective horizontal distance values ​​on both sides. and , and These are the distances from the worker's position to both sides of the board. S9, Length Distance Value and The distance is compared with the safe distance range value stored in the data storage module. If both distance values ​​are greater than the stored safe distance range value, it is determined to be a safe distance and no audio or visual prompt is given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance; S10. When the distance is determined to be dangerous, the microprocessor controls the loudspeaker to issue a danger warning voice through the sound and light prompt module, and at the same time controls the red LED light to flash as a warning.

[0004] The two-dimensional modeling module arranges the plate width values ​​obtained from several sets of data sequentially to generate a two-dimensional planar model, and the communication module sends the model data information to the administrator's mobile terminal for processing. The intelligent seat belt environmental risk monitoring and identification device includes a housing, a ranging laser, a controller, a micro stepper motor, a loudspeaker, a microphone, a red LED light, an tilt sensor, and a rechargeable battery, as well as a scanning platform set on the side of the housing, and the bottom of the scanning platform is provided with an arc-shaped scanning port. The ranging laser, controller, micro stepper motor, tilt sensor and rechargeable battery are all housed inside the housing, while the loudspeaker, microphone and red LED light are mounted on the housing. The scanning stage is set at a 45-degree angle on the side of the housing. The housing inside the scanning stage is provided with a fixed seat that faces upward at a 45-degree angle. A micro stepper motor is set on the fixed seat, and the micro stepper motor is set at a 45-degree angle to the housing. The shaft of the micro stepper motor is connected to the ranging laser via a connecting piece, and the ranging laser head of the ranging laser is set to correspond to the arc-shaped scanning port. The ranging laser is equipped with a tilt sensor for measuring the tilt angle of the ranging laser. The controller is equipped with a microprocessor, a ranging module, a communication module, a data storage module, a data analysis and comparison module, an analysis and judgment module, a two-dimensional modeling module, a model storage module, a motor control module, and an audio-visual prompt module. The microprocessor in the controller is electrically connected to the ranging module, tilt sensor, data storage module, data analysis and comparison module, analysis and judgment module, two-dimensional modeling module, model storage module, motor control module, audio-visual prompt module, communication module and rechargeable battery. The ranging module is electrically connected to the ranging laser, the motor control module is electrically connected to the micro stepper motor, and the audio-visual prompt module is electrically connected to the loudspeaker, the microphone and the red LED light. The ranging module collects distance data through a ranging laser, transmits the collected distance data to a data storage module via a microprocessor, and collects the swing angle value of the ranging laser through the tilt sensor, and transmits the swing angle value to the data storage module. The data analysis and comparison module analyzes the distance data and swing angle values ​​stored in the data storage module, analyzes the distance data associated with each angle value, and compares the distance data of the shorter distance range and the distance data of the longer distance range identified by the laser ranging. The distance data in the shorter interval is the effective planar distance value, and the distance data in the longer interval is the hyperplane distance value that is longer than the effective plane. The analysis and judgment module selects the effective plane distance value before the first hyperplane distance value on one side and the effective plane distance value before the first hyperplane distance value on the other side, and combines the swing angle values ​​associated with the effective plane distance values ​​on both sides to calculate the included angle between the two distance values, and calculates the length value between the included angle between the two distance values ​​by combining the effective plane distance values ​​on both sides. During the swinging and sweeping process of the ranging laser 2, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the worker's station, and the sweeping angle value is 90 degrees. Among the angle values ​​of the effective plane distance values ​​on both sides, if the angle value on one side is close to 90 degrees, it indicates that the worker is on the side closer to the boundary of the plate 23. Among the effective plane distance values ​​on both sides, obtain the angle between the effective plane distance value on one side and the effective plane distance value of the station, and the angle between the effective plane distance value on the other side and the effective plane distance value of the station. The sum of the two angle values ​​is the angle formed by the two effective plane distance values. The analysis and judgment module calculates the angle length between the effective horizontal distance value of the station and the effective horizontal distance values ​​on both sides. and , and The sum of these values ​​is the length L of the angle between the two effective plane distances. and This represents the distance between the station location and the points on the two effective planes on either side. The length of the two included angles and The distance is compared with the safe distance range value stored in the data storage module 15. If both distance values ​​are greater than the stored safe distance range value, it is determined to be a safe distance and no audio or visual prompt is given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance. The microprocessor 12 controls the loudspeaker 5 to issue a danger warning voice through the sound and light prompt module 21, and at the same time controls the red LED light 7 to flash to remind the workers that they are too close to the boundary of the passage plate and have exceeded the safe range, and that there is danger and they should pay attention to safety.

[0005] The microprocessor controls the rotation of the micro stepper motor through the motor control module. The ranging laser, which is vertically mounted on the shaft of the micro stepper motor, rotates clockwise and counterclockwise. The ranging laser head of the ranging laser emits laser light and reciprocates along the arc-shaped scanning port.

[0006] The two-dimensional modeling module arranges the plate width values ​​obtained from several sets of data sequentially to generate a two-dimensional planar model, and the communication module sends the model data information to the administrator's mobile terminal for processing.

[0007] The two-dimensional modeling module performs two-dimensional modeling on the data stored in the data storage module at regular intervals and stores the model. The model storage module sends a two-dimensional planar model image to the administrator's mobile terminal through the communication module at regular intervals. The model storage module deletes the stored two-dimensional models at regular intervals.

[0008] The administrator's mobile device receives the two-dimensional planar model image and provides it to the administrator for security reference. If a dangerous distance is detected, a warning message is sent to the administrator's mobile terminal via the communication module. The administrator's mobile terminal communicates with the communication module to conduct voice communication.

[0009] The microprocessor is also electrically connected to a switch, which is disposed on the housing of the casing; The rechargeable battery provides power to the controller.

[0010] Beneficial effects of this invention: 1. The identification device is easy to operate and use when worn on the seat belt; 2. Laser scanning and identification of the walking surface in high-altitude environments can identify the boundaries of walking and stepping, automatically analyze and identify the boundary distance, and provide risk warnings, thereby enhancing the safety of high-altitude operations and reducing the risk of falls. 3. Generate a two-dimensional planar model of the boundary spacing for high-altitude walking and stepping, providing safety visualization for managers on mobile devices, which is beneficial for supervision and management; Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the identification device of the present invention; Figure 2 This is a schematic diagram of the side structure of the identification device of the present invention; Figure 3 This is a schematic diagram of the internal structure of the scanning stage of the identification device of the present invention; Figure 4 This is a schematic diagram of the internal structure of the identification device of the present invention; Figure 5 This is a schematic diagram of the identification device card embedding and fixing shell structure of the present invention; Figure 6 This is a schematic diagram of the seatbelt wearing recognition device of the present invention; Figure 7 This is a schematic diagram illustrating how operators wearing the identification device perform laser scanning identification in a narrow channel at high altitudes, according to the present invention. Figure 8 This is a schematic diagram illustrating the identification device of the present invention performing identification of narrow channels over longer and shorter distance intervals; Figure 9 This is a schematic diagram of the two-dimensional planar model generated after recognition by the recognition device of the present invention; Figure 10 This is a schematic diagram of the identification device system structure of the present invention; Figure 11This is a flowchart of the identification method steps of the present invention; Figure 12 This is a schematic diagram of an embodiment of the present invention.

[0012] Reference numerals: 1. Housing; 2. Ranging laser; 3. Controller; 4. Micro stepper motor; 5. Megaphone; 6. Microphone; 7. Red LED light; 8. Tilt sensor; 9. Rechargeable battery; 10. Scanning stage; 11. Arc-shaped scanning port; 12. Microprocessor; 13. Ranging module; 14. Communication module; 15. Data storage module; 16. Data analysis and comparison module; 17. Analysis and judgment module; 18. Two-dimensional modeling module; 19. Model storage module; 20. Motor control module; 21. Audio-visual prompt module; 22. Ranging laser head; 23. Plate; 24. Fixing shell; 25. Safety belt; 26. Switch; 41. Connector; 42. Fixing base. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0014] Reference Figure 1-11 As shown, the intelligent seat belt environmental risk monitoring and identification method includes the following steps: S1. The ranging laser emitted by the ranging laser performs an arc-shaped oscillating sweeping motion in front of the operator's chest to measure the distance. S2. The tilt sensor follows the swing of the ranging laser and collects the sweep angle value of the ranging laser. S3. Each time the ranging laser sweeps, the distance data collected by the ranging module after laser scanning and ranging is combined with the sweep angle value collected by the tilt sensor into a data group, and then transmitted to the storage module for storage. S4. During the swinging and sweeping process of the range measuring laser, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the station where the operator is standing, and the sweeping angle value is 90 degrees. S5. The data analysis and comparison module analyzes several distance data and sweep angle values ​​stored in the data storage module, analyzes the distance data associated with each angle value, and compares and identifies several distance data in the shorter distance range and several distance data in the longer distance range identified by laser ranging. The shorter interval contains several distance data points that are effective planar distance values, and the longer interval contains several distance data points that are hyperplane distance values ​​that are longer than the effective plane. S6. The analysis and judgment module selects the effective plane distance value before the first hyperplane distance value on one side of the plate and the effective plane distance value before the first hyperplane distance value on the other side of the plate from the same set of data, and combines the swing angle value associated with the effective plane distance values ​​on both sides to calculate the included angle between the two distance values. Then, it calculates the length value L between the included angle of the two distance values, which is the plate width value, by combining the effective plane distance values ​​on both sides. S7. From the effective plane distance values ​​on both sides, obtain the angle between the effective plane distance value on one side and the effective plane distance value of the station, and the angle between the effective plane distance value on the other side and the effective plane distance value of the station. S8. The analysis and judgment module calculates the angle length between the effective horizontal distance value of the station and the effective horizontal distance values ​​on both sides. and , and These are the distances from the worker's position to both sides of the board. S9, Length Distance Value and The distance is compared with the safe distance range value stored in the data storage module. If both distance values ​​are greater than the stored safe distance range value, it is determined to be a safe distance and no audio or visual prompt is given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance; S10. When the distance is determined to be dangerous, the microprocessor controls the loudspeaker to issue a danger warning voice through the sound and light prompt module, and at the same time controls the red LED light to flash as a warning.

[0015] The two-dimensional modeling module sequentially arranges several effective planar distance values ​​in a shorter interval and several hyperplane distance values ​​in a longer interval, along with their associated angle values, to generate a two-dimensional planar model. The communication module then sends the model data information to the administrator's mobile terminal for processing.

[0016] The intelligent seat belt environmental risk monitoring and identification device includes a housing 1, a ranging laser 2, a controller 3, a micro stepper motor 4, a loudspeaker 5, a microphone 6, a red LED light 7, an tilt sensor 8, and a rechargeable battery 9, as well as a scanning stage 10 set on the side of the housing 1, with an arc-shaped scanning port 11 at the bottom of the scanning stage 10. The ranging laser 2, controller 3, micro stepper motor 4, tilt sensor 8 and rechargeable battery 9 are all housed inside the housing 1, while the loudspeaker 5, microphone 6 and red LED light 7 are housed on the housing 1. The scanning stage 10 is tilted downward at a 45-degree angle and is located on the side of the housing 1. The housing 1 inside the scanning stage 10 is provided with a fixed seat 42 that is angled upward at a 45-degree angle. A micro stepper motor 4 is provided on the fixed seat 42 and is positioned at a 45-degree angle to the housing 1. The shaft of the micro stepper motor 4 is connected to the ranging laser 2 via a connector 41, and the micro stepper motor 4 is connected to the ranging laser 2 at a 90-degree angle via the connector 41. The ranging laser head 22 of the ranging laser 2 is set to correspond to the arc-shaped scanning port 11; The ranging laser 2 is equipped with a tilt sensor 8, which is used to measure the tilt angle of the ranging laser 2. In use, the housing 1 is inserted into the fixed housing 24, which is set on the safety belt 25 worn by the worker on the chest. Press the switch 26 on the housing 1 to start the device. The microprocessor 12 in the controller 3 controls the motor control module 20 to make the micro stepper motor 4 rotate back and forth. The laser 2, which is perpendicular to the micro stepper motor 4, scans back and forth along the arc-shaped scanning port 11 at the bottom of the scanning stage 10. The microprocessor 12 controls the rotation of the micro stepper motor 4 through the motor control module 20. The ranging laser 2, which is vertically mounted on the rotating shaft of the micro stepper motor 4, rotates clockwise half a circle and counterclockwise half a circle. The ranging laser head 22 of the ranging laser 2 emits laser light and reciprocates along the arc-shaped scanning port 11. The tilt sensor 8 mounted on the distance laser 2 also follows the swing of the distance laser 2 and sweeps back and forth to obtain angle information.

[0017] During the swinging and sweeping process of the ranging laser, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the station where the operator is standing, and the sweeping angle value is 90 degrees. The ranging module 13 collects distance data identified by the reciprocating scanning of the laser emitted by the connected ranging laser 2, and transmits the collected distance data to the data storage module 15 via the microprocessor 12. The tilt sensor 8 collects the angle value generated when the ranging laser 2 reciprocates, and transmits the swing angle value to the data storage module 15. The data analysis and comparison module 16 analyzes the distance data and swing angle values ​​stored in the data storage module 15, analyzes the distance data associated with each angle value, and compares the distance data of the shorter distance range and the distance data of the longer distance range identified by the laser ranging. The distance data for shorter intervals are the effective plane distance values, while the distance data for longer intervals are the hyperplane distance values ​​that are longer than the effective plane. The data analysis and comparison module 16 selects an effective plane distance value before the first hyperplane distance value on one side and an effective plane distance value before the first hyperplane distance value on the other side and transmits them to the analysis and judgment module 17. It also transmits the swing angle values ​​that match the selected effective plane distance values ​​on both sides to the analysis and judgment module 17 at the same time. The analysis and judgment module 17 calculates the included angle based on the swing angle values ​​generated by the effective plane distance values ​​on both sides, and calculates the length between the included angle values ​​of the two distance values ​​in combination with the effective plane distance values ​​on both sides. Example: The ranging laser 2 of the intelligent safety belt environmental risk monitoring and identification device performs laser scanning identification on the passage plate stepped on by the workers, and obtains the effective planar distance value between the ranging laser 2 and the plate through laser scanning at different angles; Select a valid plane distance value of 130cm before the first hyperplane distance value on one side, and a valid plane distance value of 136cm before the first hyperplane distance value on the other side; The angle with an effective plane distance of 130cm on one side is 70 degrees, and the angle with an effective plane distance of 136cm on the other side is 120 degrees; Analysis and judgment module 17 calculates the included angle generated by the distance values ​​between the two valid planes: Obtain the distance value of the first effective plane. and their corresponding angles ; Obtain the distance value of the second effective plane. and their corresponding angles .

[0018] Let the angle on the first side be x, and the angle on the second side be y. Calculate the included angle z between the two sides:

[0019] That is, the included angle between the two effective planes is .

[0020] Steps for calculating the included angle length: Based on the distance values ​​on both sides , Given the included angle z, calculate the included angle length L between the two sides using geometric theorems.

[0021] Treating the distances to the two sides and the included angle as two sides of a triangle and their included angle, we can use the law of cosines to calculate the length of the third side:

[0022] Substitute the values:

[0023] The included angle length L was calculated.

[0024] The angle between the two effective plane distance values ​​is 50 degrees. The length value L of the angle between the two effective plane distance values ​​on both sides is obtained by using the Pythagorean theorem calculation formula. This length value is the width value of the two side boundaries of the board 23 where the operator walks. During the swinging and sweeping process of the ranging laser 2, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the operator's station, and the sweeping angle value is 90 degrees. If the angle value of one of the effective plane distance values ​​on both sides is close to 90 degrees, it indicates that the operator is on the side closer to the boundary of plate 23. Obtain the angle between the distance value of the effective plane on one side and the distance value of the effective plane of the station, and the angle between the distance value of the effective plane on the other side and the distance value of the effective plane of the station. The sum of the two angle values ​​is the angle formed by the two effective plane distance values. The angle between the effective horizontal distance of the station and the effective horizontal distances on both sides is obtained by using the Pythagorean theorem calculation formula. and , and The sum of these values ​​is the length L of the angle between the two effective plane distances. and This represents the distance between the station location and the points on the two effective planes on either side. The length of the two included angles and The distance is compared with the safe distance range value stored in the data storage module 15. If both distance values ​​are greater than the stored safe distance range value, it is determined to be a safe distance and no audio or visual prompt is given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance. The microprocessor 12 controls the loudspeaker 5 to issue a danger warning voice through the sound and light prompt module 21, and at the same time controls the red LED light 7 to flash to remind the workers that they are too close to the boundary of the passage plate and have exceeded the safe range, and that there is danger and they should pay attention to safety.

[0025] The two-dimensional modeling module arranges the plate width values ​​obtained from several sets of data sequentially to generate a two-dimensional planar model, and the communication module sends the model data information to the administrator's mobile terminal for processing.

[0026] The two-dimensional modeling module 18 performs two-dimensional modeling on the data stored in the data storage module 15 every 10 seconds and stores the model.

[0027] The model storage module 19 sends a two-dimensional planar model image to the administrator's mobile terminal every minute through the communication module 14. At the same time, the model storage module 19 deletes two-dimensional models stored within the last 5 minutes every 5 minutes.

[0028] The administrator's mobile device receives the two-dimensional planar model image and provides it to the administrator for security reference. If a dangerous distance is detected, a prompt message is sent to the administrator's mobile terminal via the communication module 14. The administrator's mobile terminal communicates with the communication module 14 for voice communication.

[0029] Although the present invention has been described in detail above, those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for monitoring and identifying environmental risks of intelligent seat belts, characterized in that: Includes the following steps: S1. The ranging laser emitted by the ranging laser performs an arc-shaped oscillating sweeping motion in front of the operator's chest to measure the distance. S2. The tilt sensor follows the swing of the ranging laser and collects the sweep angle value of the ranging laser. S3. Each time the ranging laser sweeps, the distance data collected by the ranging module after laser scanning and ranging is combined with the sweep angle value collected by the tilt sensor into a data group, and then transmitted to the storage module for storage. S4. During the swinging and sweeping process of the range measuring laser, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweep is the effective plane distance value of the station where the operator is standing, and the sweeping angle value is 90 degrees. S5. The data analysis and comparison module analyzes several distance data and sweep angle values ​​stored in the data storage module, analyzes the distance data associated with each angle value, and compares and identifies several distance data in the shorter distance range and several distance data in the longer distance range identified by laser ranging. The shorter interval contains several distance data points that are effective planar distance values, and the longer interval contains several distance data points that are hyperplane distance values ​​that are longer than the effective plane. S6. The analysis and judgment module selects the effective plane distance value before the first hyperplane distance value on one side of the plate and the effective plane distance value before the first hyperplane distance value on the other side of the plate from the same set of data, and combines the swing angle value associated with the effective plane distance values ​​on both sides to calculate the included angle between the two distance values. Then, it calculates the length value L between the included angle of the two distance values, which is the plate width value, by combining the effective plane distance values ​​on both sides. S7. From the effective plane distance values ​​on both sides, obtain the angle between the effective plane distance value on one side and the effective plane distance value of the station, and the angle between the effective plane distance value on the other side and the effective plane distance value of the station. S8. The analysis and judgment module calculates and obtains the angle lengths L1 and L2 generated between the effective plane distance value of the station and the effective plane distance values ​​on both sides. L1 and L2 are the distances from the position of the worker to the two sides of the plate, respectively. S9. The length distance values ​​L1 and L2 are compared with the safe distance range values ​​stored in the data storage module. If both distance values ​​are greater than the stored safe distance range values, the distance is determined to be safe and no audio or visual prompt is given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance; S10. When the distance is determined to be dangerous, the microprocessor controls the loudspeaker to issue a danger warning voice through the sound and light prompt module, and at the same time controls the red LED light to flash as a warning.

2. The intelligent seat belt environmental risk monitoring and identification method according to claim 1, characterized in that: The two-dimensional modeling module arranges the plate width values ​​obtained from several sets of data sequentially to generate a two-dimensional planar model, and the communication module sends the model data information to the administrator's mobile terminal for processing.

3. An intelligent seat belt environmental risk monitoring and identification device, characterized in that: Includes housing (1), ranging laser (2), controller (3), micro stepper motor (4), loudspeaker (5), pickup (6), red LED light (7), tilt sensor (8) and rechargeable battery (9), and scanning stage (10) set on the side of housing (1); The ranging laser (2), controller (3), micro stepper motor (4), tilt sensor (8) and rechargeable battery (9) are all housed inside the housing (1), and the loudspeaker (5), pickup (6) and red LED light (7) are housed on the housing (1). The scanning stage (10) is set at a 45-degree angle on the side of the housing (1), and an arc-shaped scanning port (11) is opened at the bottom of the scanning stage (10). A micro stepper motor (4) is provided on the housing (1) inside the scanning stage (10). The rotating shaft of the micro stepper motor (4) is connected to the ranging laser (2) through a connecting piece (41). The ranging laser head (22) of the ranging laser (2) is set to correspond to the arc-shaped scanning port (11). The ranging laser (2) is equipped with a tilt sensor (8) for measuring the tilt angle of the ranging laser (2); The controller (3) is equipped with a microprocessor (12), a ranging module (13), a communication module (14), a data storage module (15), a data analysis and comparison module (16), an analysis and judgment module (17), a two-dimensional modeling module (18), a model storage module (19), a motor control module (20), and an audio-visual prompting module (21). The microprocessor (12) in the controller (3) is electrically connected to the ranging module (13), tilt sensor (8), data storage module (15), data analysis and comparison module (16), analysis and judgment module (17), two-dimensional modeling module (18), model storage module (19), motor control module (20), sound and light prompt module (21), communication module (14) and rechargeable battery (9). The ranging module (13) is electrically connected to the ranging laser (2). The motor control module (20) is electrically connected to the micro stepper motor (4). The sound and light prompt module (21) is electrically connected to the loudspeaker (5), the pickup (6) and the red LED light (7). The ranging module (13) collects distance data through the ranging laser (2), transmits the collected distance data to the data storage module (15) through the microprocessor (12), collects the swing angle value of the ranging laser (2) through the tilt sensor (8), and transmits the swing angle value to the data storage module (15). The data analysis and comparison module (16) analyzes the distance data and swing angle values ​​stored in the data storage module (15), analyzes the distance data associated with each angle value, and analyzes and compares the distance data of the shorter distance range and the distance data of the longer distance range identified by the laser ranging. The distance data in the shorter interval is the effective planar distance value, and the distance data in the longer interval is the hyperplane distance value that is longer than the effective plane. The data analysis and comparison module (16) selects an effective plane distance value before the first hyperplane distance value on one side and an effective plane distance value before the first hyperplane distance value on the other side and transmits them to the analysis and judgment module (17). It also transmits the swing angle values ​​that match the selected effective plane distance values ​​on both sides to the analysis and judgment module (17) at the same time. The analysis and judgment module (17) calculates the included angle from the swing angle values ​​generated by the effective plane distance values ​​on both sides, and calculates the length value L between the included angle values ​​of the two distance values ​​in combination with the effective plane distance values ​​on both sides; During the swinging and sweeping process of the ranging laser 2, the laser emitted is vertically swept at 90 degrees on the plate 23. The distance value collected by this sweeping is the effective plane distance value of the operator's station, and the sweeping angle value is 90 degrees. If the angle value of the effective plane distance on both sides is close to 90 degrees, it indicates that the operator is on the side closer to the boundary of the plate 23. Among the effective plane distance values ​​on both sides, obtain the angle between the effective plane distance value on one side and the effective plane distance value of the station, and the angle between the effective plane distance value on the other side and the effective plane distance value of the station. The sum of the two angle values ​​is the angle formed by the two effective plane distance values. The analysis and judgment module calculates and obtains the angle lengths L1 and L2 generated between the effective plane distance value of the station and the effective plane distance values ​​on both sides, respectively. The sum of L1 and L2 is the length value L of the angle between the two effective plane distance values. L1 and L2 are the distance values ​​between the station locations and the effective planes on both sides. The length distance values ​​L1 and L2 of the two included angles are compared with the safe distance range values ​​stored in the data storage module (15) for judgment. If both distance values ​​are greater than the stored safe distance range values, they are determined to be safe distances and no sound or light prompts are given. If one of the distance values ​​is less than the safe distance range, it is determined to be a dangerous distance. The microprocessor (12) controls the loudspeaker (5) to issue a dangerous warning voice through the sound and light prompt module (21), and at the same time controls the red LED light (7) to flash to remind the workers that they are too close to the boundary of the passage plate and are beyond the safe range, and that there is danger and they should pay attention to safety.

4. The intelligent seat belt environmental risk monitoring and identification device according to claim 3, characterized in that: The scanning stage (10) has a fixed base (42) at an upward angle of 45 degrees on the housing (1). A micro stepper motor (4) is installed on the fixed base (42), and the micro stepper motor (4) is set at a 45-degree angle to the housing (1).

5. The intelligent seat belt environmental risk monitoring and identification device according to claim 3, characterized in that: The microprocessor (12) controls the rotation of the micro stepper motor (4) through the motor control module (20). The ranging laser (2) vertically mounted on the shaft of the micro stepper motor (4) rotates clockwise and counterclockwise. The ranging laser head (22) of the ranging laser (2) emits laser light and reciprocates along the arc-shaped scanning port (11).

6. The intelligent seat belt environmental risk monitoring and identification device according to claim 3, characterized in that: The two-dimensional modeling module (18) analyzes and models the swing angle values ​​and distance data stored in the data storage module (15), generates a two-dimensional plane model, and stores it in the model storage module (19).

7. The intelligent seat belt environmental risk monitoring and identification device according to claim 3, characterized in that: The two-dimensional modeling module (18) performs two-dimensional modeling on the data stored in the data storage module (15) at regular intervals and stores the model; The model storage module (19) sends a two-dimensional planar model image to the administrator's mobile terminal once every certain period of time through the communication module (14); The model storage module (19) deletes the stored two-dimensional model once every certain period of time.

8. The intelligent seat belt environmental risk monitoring and identification device according to claim 3, characterized in that: The administrator's mobile device receives the two-dimensional planar model image and provides it to the administrator for security reference. The administrator's mobile terminal communicates with the communication module (14) to conduct voice conversations.

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