Method and system for monitoring safety belts for high-altitude work

Abstract

The present invention relates to the field of safety belt monitoring alarms, and specifically to a method and system for monitoring safety belts for high-altitude operations, including obtaining the identification number of the safety belt, the work area number, and the identity information corresponding to the operator who receives the safety belt, networking the safety belts to form a linkage alarm group; when a safety belt alarm sounds, the other safety belts that form the linkage alarm group with the safety belt sound an alarm, and other operators are informed, reminded, or helped. The present invention forms a linkage alarm state between closer safety belts by networking the safety belts and judging the distance between them. When one of them has a safety belt wearing hazard, the other safety belts in the linkage alarm group can manually remind or help eliminate the safety belt wearing hazard as soon as possible; by regularly updating the other safety belts in the linkage alarm group, the network monitoring of all safety belts is kept at the nearest or optimal distance, so that the reminder, help, or rescue distance is the shortest and most efficient.

Description

Technical Field

[0001] The present invention relates to the field of safety belt monitoring alarms, and in particular to a method and system for monitoring safety belts for aerial work. Background Art

[0002] Safety belts are personal protective equipment frequently used by workers working at heights in construction and power plants. Common three-point and five-point safety belts are common. In actual high-altitude operations, most safety belts are worn by the construction team before work begins. The team checks that each worker is wearing a safety belt before the inspection is complete. Currently, there are some products on the market that use electronic devices to identify whether a safety belt is worn correctly. For example, patent application number ZL202210853972X discloses a safety belt status monitoring system and method for high-altitude operations. The system uses sensors to identify the safety belt wearing status and provides an alarm function.

[0003] However, the existing high-altitude work safety belts are based on the assumption that the workers will correct themselves immediately after being informed of the alarm. However, there are actually two situations: one is that the workers are still overconfident and do not wear the safety belt correctly after hearing the alarm signal; the other is that the workers themselves are in a suspended state or their body position is not convenient for adjusting the safety belt and need help from other workers to adjust the wearing. Due to the huge noise of the concrete vibrator used for concrete pouring on site construction, verbal notification from the workers often cannot solve the problem. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] In order to address the deficiencies of the prior art, the present invention aims to provide a method and system for monitoring safety belts for aerial work, which solves the problem of on-site safety belt wearing monitoring by achieving networking communication and linkage alarms between safety belts.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0008] In one aspect, an embodiment of the present application provides a method for monitoring a safety belt for high-altitude work, the method comprising:

[0009] Obtaining the safety belt identification number, the work area number, and the identity information corresponding to the worker who receives the safety belt, wherein the identity information is obtained by using a camera to obtain the worker's facial information and perform identity recognition when the safety belt is used; adding the safety belt identification number and the corresponding worker identity information for the same work area number to a first set;

[0010] Performing a network communication test between the safety belts in the first set until the communication function of the first set is detected to be normal; when the communication function of the first set is detected to be normal, setting the safety belts in the first set to a communication dormant state;

[0011] Before entering the high-altitude operation, the operator calibrates the initial height of the first set of safety belts. When the pressure sensor of the first set of safety belts detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set;

[0012] Any seat belt in the second set searches for other seat belts in the second set through the communication function, and when the signal strength between the two seat belts is greater than the set strength threshold, the two seat belts are set as a linkage alarm group;

[0013] When the first safety belt in the second set is not worn or is worn incorrectly and a first alarm signal occurs, the second safety belts that form a linkage alarm group with the safety belts all send out a second alarm signal, and the operator corresponding to the second safety belt informs, reminds or helps the operator corresponding to the first safety belt to wear the first safety belt correctly.

[0014] Furthermore, the method further comprises:

[0015] During this period, the operating height of the safety belts of the first set is detected. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication awakening state and added to the second set; during this period, the operating height of the safety belts of the second set is detected. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication awakening state are set to the communication dormant state and added to the first set.

[0016] Furthermore, the method further comprises:

[0017] During this period, communication tests will be performed regularly between the two seat belts in the linkage alarm group. When it is detected that the signal strength between the two seat belts is lower than the set strength threshold, the linkage alarm group relationship between the two seat belts will be released, and the signal strength will be retested to generate a new linkage alarm group.

[0018] Furthermore, the method further comprises:

[0019] When the first safety belt generates a first alarm signal, the distance between the second safety belt and the first safety belt is measured by the signal strength between the second safety belt and the first safety belt. If the distance is not reduced to the set rescue distance threshold within a set rescue time threshold and the first alarm signal is not released during the period, the first safety belt searches for other safety belts in the second set except the second safety belt through the communication function and records them as third safety belts. The first alarm signal is sent to the third safety belt to trigger it to generate a second alarm signal and notify the corresponding operator to inform, remind or help the operator corresponding to the first safety belt to correctly wear the first safety belt.

[0020] When the first seat belt fails to search for and connect to the third seat belt within the set connection time threshold through the communication function, or when the first seat belt is successfully connected to the third seat belt and the distance between the third seat belt and the first seat belt is not reduced to the set rescue distance within the set rescue time and the first alarm signal is not cancelled during this period, the first alarm signal is forwarded to the fourth seat belt with the best signal strength through the communication relay function of the second seat belt or the third seat belt and triggered to generate the second alarm signal; when the first alarm signal still cannot be cancelled within the set rescue time, the first alarm signal is forwarded to the remaining seat belts of the second set through the communication relay function of the second seat belt.

[0021] Furthermore, the method further comprises:

[0022] When the safety belts in the second set do not form a linkage alarm group with other safety belts, they will be recorded as the fifth safety belt; when the first alarm signal occurs in the fifth safety belt, the GPS or Beidou positioning system of the safety belts in the second set will be started and the sixth safety belt closest to the fifth safety belt will be found and triggered to generate a second alarm signal, and the operator corresponding to the sixth safety belt will be informed, reminded or helped to wear the fifth safety belt correctly through the operator corresponding to the sixth safety belt; when the first alarm signal still cannot be lifted within the set rescue time, other safety belts that are next closest to the fifth safety belt will be found in turn and triggered to generate a second alarm signal.

[0023] In a second aspect, based on the same inventive concept, this embodiment provides a safety belt monitoring system for aerial work, the system comprising:

[0024] The receiving registration module is used to obtain the identification number of the safety belt, the work area number, and the identity information of the worker who receives the safety belt. The identity information is obtained by using the camera to obtain the worker's facial information and perform identity recognition when the safety belt is used; the identification number of the safety belt with the same work area number and the identity information of the corresponding worker are added to the first set;

[0025] A network test module is used to perform a network communication test between the safety belts in the first set until it is detected that the communication function of the first set is normal; when the communication function of the first set is detected to be normal, the safety belts in the first set are set to a communication dormant state;

[0026] A height calibration module is used to calibrate the initial height of the first set of safety belts by the operator before entering the high-altitude operation. When the pressure sensor of the safety belts of the first set detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set;

[0027] A linkage networking module is used for any seat belt in the second set to search for other seat belts in the second set through a communication function, and when the signal strength between two seat belts is greater than a set strength threshold, the two seat belts are set as a linkage alarm group;

[0028] The linkage alarm module is used to send out a second alarm signal when the first safety belt in the second set is not worn or is worn incorrectly, and the second safety belts that form the linkage alarm group with the safety belts all send out a second alarm signal, and inform, remind or help the operator corresponding to the first safety belt to wear the first safety belt correctly through the operator corresponding to the second safety belt.

[0029] Furthermore, the system further comprises:

[0030] The height wake-up module is used to detect the operating height of the safety belts of the first set during the period. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication wake-up state and added to the second set; the height of the safety belts of the second set is detected during the period. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication wake-up state are set to the communication dormant state and added to the first set.

[0031] Furthermore, the system further comprises:

[0032] The network update monitoring module is used to regularly conduct communication tests between the two seat belts in the linkage alarm group. When it is detected that the signal strength between the two seat belts is lower than the set strength threshold, the linkage alarm group relationship between the two seat belts is released, and the signal strength is retested to generate a new linkage alarm group.

[0033] Furthermore, the system further comprises:

[0034] a first alarm module configured to, when a first alarm signal is generated by the first safety belt, measure the distance between the second safety belt and the first safety belt by using the signal strength between the second safety belt and the first safety belt; and, if the distance is not reduced to a set rescue distance threshold within a set rescue time threshold and the first alarm signal is not released during this period, search the first safety belt for other safety belts in the second set other than the second safety belt through a communication function and record them as third safety belts, and send the first alarm signal to the third safety belt to trigger it to generate a second alarm signal and notify its corresponding operator to inform, remind or help the operator corresponding to the first safety belt to correctly wear the first safety belt;

[0035] The second alarm module is used to forward the first alarm signal to the fourth seat belt with the best signal strength through the communication relay function of the second seat belt or the third seat belt and trigger it to generate the second alarm signal when the first seat belt fails to search and connect to the third seat belt within the set connection time threshold through the communication function, or when the first seat belt is successfully connected to the third seat belt and the distance between the third seat belt and the first seat belt is not reduced to the set rescue distance within the set rescue time and the first alarm signal is not cancelled during this period; when the first alarm signal still cannot be cancelled within the set rescue time, the first alarm signal is forwarded to the remaining seat belts of the second set through the communication relay function of the second seat belt.

[0036] Furthermore, the system further comprises:

[0037] The third alarm module is used to record the second set of seat belts as the fifth seat belt when it does not form a linkage alarm group with other seat belts; when the first alarm signal occurs in the fifth seat belt, start the GPS or Beidou positioning system of the seat belts in the second set and find the sixth seat belt closest to the fifth seat belt and trigger it to generate a second alarm signal and inform, remind or help the operator corresponding to the sixth seat belt to wear the fifth seat belt correctly through the operator corresponding to the sixth seat belt; when the first alarm signal cannot be lifted within the set rescue time, find other seat belts that are next closest to the fifth seat belt in turn and trigger them to generate a second alarm signal.

[0038] (3) Beneficial effects

[0039] The beneficial effects of the present invention are:

[0040] 1. By networking the seat belts and determining their distance, a linkage alarm state is established between the closer seat belts. When a seat belt wearing hazard occurs in one of them, the other seat belts in the linkage alarm group can provide a prompt reminder or help resolve the hazard as soon as possible.

[0041] 2. Reduce the communication power consumption of the safety belt through altitude testing, etc., so that the safety belt will only communicate and alarm when it is working at high altitude.

[0042] 3. By regularly updating other seat belts in the linkage alarm group, the network monitoring of all seat belts can be kept at the closest or best distance, making the reminder, help or rescue distance the shortest and most efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 This is a flow chart of a method for monitoring a safety belt for aerial work according to a first embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of multiple seat belt distances and signal coverage areas according to an embodiment of the present invention;

[0046] Figure 3 This is a block diagram of a safety belt monitoring system for aerial work according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] It should be noted that similar reference numerals or letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0049] Before giving examples, the application scenarios involved in the embodiments of the present invention need to be further elaborated. First, there are related existing technologies for detecting whether the safety belt is worn correctly, which can be detected by pressure sensing or by sensing whether it is worn correctly based on the distance between multiple straps of the safety belt. If the safety belt is not worn properly, first of all, this type of electronic sensing equipment will alarm, and the alarm signal will remind the wearer himself or upload it to the central control room. However, there are two problems. First, some falling accidents are often not caused by the lack of safety belts, but by the negligence or overconfidence of the operators, resulting in the operators not wearing safety belts during operation; second, sometimes the operators do not want to wear the safety belts correctly, but the operators themselves are in a suspended state or their body position is not convenient for adjusting the safety belts and need other operators to help adjust and wear them. When an operator needs help from other workers to adjust the safety belt, due to the huge noise of the concrete vibrator used for concrete pouring on site, it is often impossible for the operator to notify the nearest other workers verbally to remind or help him; if the safety belt is not worn correctly, an alarm signal will be transmitted to the management personnel's central control room, but even if the alarm signal is uploaded to the central control room and conveyed to the operator through the current safety manager, the operators are often scattered during construction and the safety manager does not know the exact location of the operators; another way is for the central control room to call the operator who issued the alarm signal through an intercom, but the signal in some construction sites such as corridors and ventilation shafts may not be good, and a signal amplifier needs to be installed separately. During the on-site construction process, workers often work in groups or teams in various work areas. Therefore, the technical solution of the present invention is to use the linkage group or the nearest workers in the area to issue an alarm reminder to inform them to promptly supervise, remind and help the operator who does not wear the safety belt correctly.

[0050] Example 1: Figure 1 As shown, this embodiment provides a method for monitoring a safety belt for high-altitude work, the method comprising:

[0051] Step S1, obtain the identification number of the safety belt, the work area number and the identity information corresponding to the worker who receives the safety belt, the identity information is obtained by obtaining the worker's facial information through the camera for identity recognition when the safety belt is used; the identification number of the safety belt with the same work area number and the identity information of the corresponding worker are added to the first set; the identification number of the safety belt can be obtained by a series of methods that can be given a distinguishing code, such as barcode, QR code, etc., which can be used to quickly scan and identify, and the work area number can be obtained through the work order system or input by the management personnel; the camera recognizes the identity of the worker through facial information, which is also a common method, such as CNN algorithm or Eigenface algorithm, which performs identification and matching through pre-input worker facial information and facial information captured when the safety belt is received on site.

[0052] Step S2: Network communication testing is performed between the safety belts in the first set until the communication function of the first set is detected to be normal. When the communication function of the first set is detected to be normal, the safety belts in the first set are set to a communication dormant state. The first set can be considered to be workers working in the same work area, so their safety belts are networked. Networking methods include wireless networking modes such as WIFI, Mesh, or Zigbee. The specific selection can be based on needs. In the embodiment of the present invention, ZigBee networking is selected. Its advantages are short-range, low-power, low-rate, self-organizing wireless communication technology. It has the advantages of low power consumption, self-organizing networking, reliability and stability, flexible mesh topology, secure encryption, and low cost. In actual testing, the inventors found that the dry batteries used in the ZigBee networking mode solution can last for more than 6 months. Currently, the safety belt alarm signal does not require complex data transmission, that is, there is no high requirement for the transmission byte size. The transmission distance using current ZigBee technology can easily achieve communication connection within 100 meters without adding a signal amplifier. WIFI and Mesh are two other optional networking modes. WIFI networking mode consumes more power, while Mesh mode can also be applied to this solution.

[0053] Step S3: Before entering the high-altitude operation, the operator calibrates the initial height of the safety belts of the first set. When the air pressure sensor of the safety belt of the first set detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set. The air pressure sensor calibrates the ground reference height on the ground of the operation area. When a set number of air pressure sensors are calibrated, the other uncalibrated air pressure sensors in the first set are also passively calibrated to prevent operators from forgetting to calibrate the ground reference height. Currently, the air pressure sensor can measure the height accuracy of up to 0.1 meters. When the operator puts on the safety belt and calibrates the ground reference height before entering the high-altitude operation, it is necessary to consider the height of the safety belt from the ground when the operator is wearing it during calibration.

[0054] Step S4: Any safety belt in the second set searches for other safety belts in the second set through the communication function. When the signal strength between two safety belts is greater than the set strength threshold, the two safety belts are set as a linkage alarm group. Although some workers are working in the same work area, some safety belts are shielded by partitions or ventilation shafts, and some safety belts have no signal connection. Therefore, the purpose here is to let each safety belt find its own linkage alarm group. As long as one safety belt sends the first alarm signal, the others will passively send the second alarm signal. The linkage alarm group here can be one safety belt and another safety belt, or one safety belt and multiple safety belts. As long as the signal strength between the two is greater than the set strength threshold, they will be combined into a linkage alarm group.

[0055] Step S5: When a first safety belt in the second set is not worn or is worn incorrectly, generating a first alarm signal, each second safety belt in the linked alarm group with the first safety belt emits a second alarm signal. The operator corresponding to the second safety belt informs, reminds, or helps the operator corresponding to the first safety belt to correctly wear the first safety belt. The first alarm signal and the second alarm signal are different. The first alarm signal is a reminder that the operator is not wearing the safety belt correctly, while the second alarm signal is a reminder that a nearby worker is not wearing the safety belt correctly and needs supervision or assistance. Specific distinctions can be made by setting different alarm signal sounds, different lights, or different vibrations, and operators should be trained in advance to be able to distinguish.

[0056] Furthermore, the method further comprises:

[0057] During this period, the operating height of the safety belts of the first set is detected. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication awakening state and added to the second set; during this period, the operating height of the safety belts of the second set is detected. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication awakening state are set to the communication dormant state and added to the first set. Only when the safety belts enter the high-altitude working state can they communicate in the network. Once the communication is completed, the signal needs to be transmitted regularly. Therefore, the safety belts that exit the high-altitude working state should be promptly exited from the second set. In my country's definition of high-altitude work, the working height of high-altitude work refers to work at a height of 2 meters or more where there is a possibility of falling.

[0058] Furthermore, the method further comprises:

[0059] During this period, communication tests will be conducted regularly between the two safety belts of the linkage alarm group. When it is detected that the signal strength between the two safety belts is lower than the set strength threshold, the linkage alarm group relationship of the two safety belts will be released, and the signal strength will be retested to generate a new linkage alarm group. The work of the operators is often active, so the linkage alarm group relationship needs to be changed according to the real-time change in the mutual distance. In practice, the inventor found that the frequency of regular communication tests can be set to about 10-30s / time, which is more appropriate. In communication signal transmission, generally the closer the mutual distance is, the greater the signal strength is. However, in fact, the signal strength at some partition walls or communication blind corners will also be poor. At this time, it is most appropriate to follow the signal strength to link the alarm, because some people are very close behind the wall but the signal is poor. Even if they are notified to supervise or help wear the safety belt, the person behind the wall cannot see the other person and is not the best candidate for the linkage alarm. Although the two people with stronger signal strength are closer to the two people without a wall, there is often no wall obstacle at this time and the line of sight is wider. When the first alarm signal is issued, the other person can immediately perceive the second alarm signal and immediately approach or shout to the operator who issued the first alarm signal to supervise, inform or help him wear the correct safety belt.

[0060] Furthermore, if Figure 2 As shown, the method further includes:

[0061] When the first safety belt generates a first alarm signal, the distance between the second safety belt and the first safety belt is measured by the signal strength between the second safety belt and the first safety belt. When the distance is not reduced to the set rescue distance threshold within the set rescue time threshold and the first alarm signal is not cancelled during the period, the first safety belt searches for other safety belts in the second set except the second safety belt through the communication function and records them as the third safety belt, and sends the first alarm signal to the third safety belt to trigger it to generate a second alarm signal and notify its corresponding operator to inform, remind or help the operator corresponding to the first safety belt to wear the first safety belt correctly; when the person wearing the first safety belt does not cancel the first alarm signal within the rescue time, it means that the safety problem of wearing the safety belt has not been corrected, and the coworker did not get close to the first safety belt within the rescue time, that is, it is inferred that the second safety belt may not have given a face-to-face reminder or help, then the operators of other safety belts need to intervene.

[0062] If the first safety belt fails to search for and connect to the third safety belt via the communication function within a set connection time threshold, or if the first safety belt successfully connects to the third safety belt and the distance between the third safety belt and the first safety belt has not been reduced to the set rescue distance within a set rescue time, and the first alarm signal has not been released during this period, the first alarm signal is forwarded to the fourth safety belt with the best signal strength via the communication relay function of the second or third safety belt, triggering it to generate a second alarm signal. If the first alarm signal still cannot be released within the set rescue time, the first alarm signal is forwarded to the remaining safety belts in the second set via the communication relay function of the second safety belt. If the first safety belt cannot receive supervision and assistance from other workers within its signal range, the first alarm signal will persist. In this case, the safety belt that it has searched for will use the communication relay function of other safety belts to expand the alarm signal notification range. For example, in this embodiment, the first safety belt can directly connect to the second and third safety belts, but the first alarm signal from the first safety belt needs to be transmitted through the communication relay function to reach the fourth safety belt.

[0063] Furthermore, the method further comprises:

[0064] If the second set of seatbelts is not part of a coordinated alarm group with other seatbelts, it is designated as the fifth seatbelt. When the fifth seatbelt generates a first alarm signal, the GPS or Beidou positioning system of the seatbelts in the second set is activated to locate the sixth seatbelt closest to the fifth, triggering it to generate a second alarm signal. The operator corresponding to the sixth seatbelt is then notified, reminded, or assisted by the operator corresponding to the fifth seatbelt to correctly wear the fifth seatbelt. If the first alarm signal cannot be disarmed within the set rescue time, the next closest seatbelts are sequentially located and triggered to generate a second alarm signal. However, if an operator is working alone and is not wearing their seatbelt correctly, the positioning system needs to locate the nearest operator, which is achieved through geographic location. Therefore, the GPS or Beidou positioning function installed on the seatbelt is also required. Therefore, when the first alarm signal is generated, the positioning distance is sequentially activated to locate the nearest seatbelt or several seatbelts, triggering a second alarm signal and notifying other operators to supervise or provide assistance.

[0065] Example 2: Figure 3 As shown, based on the same inventive concept, this embodiment provides a high-altitude work safety belt monitoring system, the system comprising:

[0066] The receiving registration module is used to obtain the identification number of the safety belt, the work area number, and the identity information of the worker who receives the safety belt. The identity information is obtained by using the camera to obtain the worker's facial information and perform identity recognition when the safety belt is used; the identification number of the safety belt with the same work area number and the identity information of the corresponding worker are added to the first set;

[0067] A network test module is used to perform a network communication test between the safety belts in the first set until it is detected that the communication function of the first set is normal; when the communication function of the first set is detected to be normal, the safety belts in the first set are set to a communication dormant state;

[0068] A height calibration module is used to calibrate the initial height of the first set of safety belts by the operator before entering the high-altitude operation. When the pressure sensor of the safety belts of the first set detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set;

[0069] A linkage networking module is used for any seat belt in the second set to search for other seat belts in the second set through a communication function, and when the signal strength between two seat belts is greater than a set strength threshold, the two seat belts are set as a linkage alarm group;

[0070] The linkage alarm module is used to send out a second alarm signal when the first safety belt in the second set is not worn or is worn incorrectly, and the second safety belts that form the linkage alarm group with the safety belts all send out a second alarm signal, and inform, remind or help the operator corresponding to the first safety belt to wear the first safety belt correctly through the operator corresponding to the second safety belt.

[0071] Furthermore, the system further comprises:

[0072] The height wake-up module is used to detect the operating height of the safety belts of the first set during the period. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication wake-up state and added to the second set; the height of the safety belts of the second set is detected during the period. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication wake-up state are set to the communication dormant state and added to the first set.

[0073] Furthermore, the system further comprises:

[0074] The network update monitoring module is used to regularly conduct communication tests between the two seat belts in the linkage alarm group. When it is detected that the signal strength between the two seat belts is lower than the set strength threshold, the linkage alarm group relationship between the two seat belts is released, and the signal strength is retested to generate a new linkage alarm group.

[0075] Furthermore, the system further comprises:

[0076] a first alarm module configured to, when a first alarm signal is generated by the first safety belt, measure the distance between the second safety belt and the first safety belt by using the signal strength between the second safety belt and the first safety belt; and, if the distance is not reduced to a set rescue distance threshold within a set rescue time threshold and the first alarm signal is not released during this period, search the first safety belt for other safety belts in the second set other than the second safety belt through a communication function and record them as third safety belts, and send the first alarm signal to the third safety belt to trigger it to generate a second alarm signal and notify its corresponding operator to inform, remind or help the operator corresponding to the first safety belt to correctly wear the first safety belt;

[0077] The second alarm module is used to forward the first alarm signal to the fourth seat belt with the best signal strength through the communication relay function of the second seat belt or the third seat belt and trigger it to generate the second alarm signal when the first seat belt fails to search and connect to the third seat belt within the set connection time threshold through the communication function, or when the first seat belt is successfully connected to the third seat belt and the distance between the third seat belt and the first seat belt is not reduced to the set rescue distance within the set rescue time and the first alarm signal is not cancelled during this period; when the first alarm signal still cannot be cancelled within the set rescue time, the first alarm signal is forwarded to the remaining seat belts of the second set through the communication relay function of the second seat belt.

[0078] Furthermore, the system further comprises:

[0079] The third alarm module is used to record the second set of seat belts as the fifth seat belt when it does not form a linkage alarm group with other seat belts; when the first alarm signal occurs in the fifth seat belt, start the GPS or Beidou positioning system of the seat belts in the second set and find the sixth seat belt closest to the fifth seat belt and trigger it to generate a second alarm signal and inform, remind or help the operator corresponding to the sixth seat belt to wear the fifth seat belt correctly through the operator corresponding to the sixth seat belt; when the first alarm signal cannot be lifted within the set rescue time, find other seat belts that are next closest to the fifth seat belt in turn and trigger them to generate a second alarm signal.

[0080] It should be noted that, regarding the system in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated on here.

[0081] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A method for monitoring a safety belt for high-altitude work, characterized in that: The method comprises: Obtaining the safety belt identification number, the work area number, and the identity information corresponding to the worker who receives the safety belt, wherein the identity information is obtained by using a camera to obtain the worker's facial information and perform identity recognition when the safety belt is used; adding the safety belt identification number and the corresponding worker identity information for the same work area number to a first set; Performing a network communication test between the safety belts in the first set until the communication function of the first set is detected to be normal; when the communication function of the first set is detected to be normal, setting the safety belts in the first set to a communication dormant state; Before entering the high-altitude operation, the operator calibrates the initial height of the first set of safety belts. When the pressure sensor of the first set of safety belts detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set; Any seat belt in the second set searches for other seat belts in the second set through the communication function, and when the signal strength between the two seat belts is greater than the set strength threshold, the two seat belts are set as a linkage alarm group; When the first safety belt in the second set is not worn or is worn incorrectly and a first alarm signal occurs, the second safety belts that form a linkage alarm group with the safety belts all send out a second alarm signal, and the operator corresponding to the second safety belt informs, reminds or helps the operator corresponding to the first safety belt to wear the first safety belt correctly.

2. The method for monitoring a safety belt for aerial work according to claim 1, wherein: The method further comprises: During this period, the operating height of the safety belts of the first set is detected. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication awakening state and added to the second set; during this period, the operating height of the safety belts of the second set is detected. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication awakening state are set to the communication dormant state and added to the first set.

3. The method for monitoring a safety belt for aerial work according to claim 1, wherein: The method further comprises: During this period, communication tests will be performed regularly between the two seat belts in the linkage alarm group. When it is detected that the signal strength between the two seat belts is lower than the set strength threshold, the linkage alarm group relationship between the two seat belts will be released, and the signal strength will be retested to generate a new linkage alarm group.

4. The method for monitoring a safety belt for aerial work according to any one of claims 1 to 3, wherein: The method further comprises: When the first safety belt generates a first alarm signal, the distance between the second safety belt and the first safety belt is measured by the signal strength between the second safety belt and the first safety belt. If the distance is not reduced to the set rescue distance threshold within a set rescue time threshold and the first alarm signal is not released during the period, the first safety belt searches for other safety belts in the second set except the second safety belt through the communication function and records them as third safety belts. The first alarm signal is sent to the third safety belt to trigger it to generate a second alarm signal and notify the corresponding operator to inform, remind or help the operator corresponding to the first safety belt to correctly wear the first safety belt. When the first seat belt fails to search for and connect to the third seat belt within the set connection time threshold through the communication function, or when the first seat belt is successfully connected to the third seat belt and the distance between the third seat belt and the first seat belt is not reduced to the set rescue distance within the set rescue time and the first alarm signal is not cancelled during this period, the first alarm signal is forwarded to the fourth seat belt with the best signal strength through the communication relay function of the second seat belt or the third seat belt and triggered to generate the second alarm signal; when the first alarm signal still cannot be cancelled within the set rescue time, the first alarm signal is forwarded to the remaining seat belts of the second set through the communication relay function of the second seat belt.

5. The method for monitoring a safety belt for aerial work according to claim 4, wherein: The method further comprises: When the safety belts in the second set do not form a linkage alarm group with other safety belts, they will be recorded as the fifth safety belt; when the first alarm signal occurs in the fifth safety belt, the GPS or Beidou positioning system of the safety belts in the second set will be started and the sixth safety belt closest to the fifth safety belt will be found and triggered to generate a second alarm signal, and the operator corresponding to the sixth safety belt will be informed, reminded or helped to wear the fifth safety belt correctly through the operator corresponding to the sixth safety belt; when the first alarm signal still cannot be lifted within the set rescue time, other safety belts that are next closest to the fifth safety belt will be found in turn and triggered to generate a second alarm signal.

6. Aerial work safety belt monitoring system, characterized by: The system comprises: The receiving registration module is used to obtain the identification number of the safety belt, the work area number, and the identity information of the worker who receives the safety belt. The identity information is obtained by using the camera to obtain the worker's facial information and perform identity recognition when the safety belt is used; the identification number of the safety belt with the same work area number and the identity information of the corresponding worker are added to the first set; A network test module is used to perform a network communication test between the safety belts in the first set until it is detected that the communication function of the first set is normal; when the communication function of the first set is detected to be normal, the safety belts in the first set are set to a communication dormant state; A height calibration module is used to calibrate the initial height of the first set of safety belts by the operator before entering the high-altitude operation. When the pressure sensor of the safety belts of the first set detects that the operator's working height is greater than the set height threshold, the safety belts of the first set in the communication dormant state are set to the communication awake state and recorded as the second set; A linkage networking module is used for any seat belt in the second set to search for other seat belts in the second set through a communication function, and when the signal strength between two seat belts is greater than a set strength threshold, the two seat belts are set as a linkage alarm group; The linkage alarm module is used to send out a second alarm signal when the first safety belt in the second set is not worn or is worn incorrectly, and the second safety belts that form the linkage alarm group with the safety belts all send out a second alarm signal, and inform, remind or help the operator corresponding to the first safety belt to wear the first safety belt correctly through the operator corresponding to the second safety belt.

7. The high-altitude work safety belt monitoring system according to claim 6, characterized in that: The system further comprises: The height wake-up module is used to detect the operating height of the safety belts of the first set during the period. When the operating height is greater than the set height threshold, the safety belts of the first set in the dormant state are set to the communication wake-up state and added to the second set; the height of the safety belts of the second set is detected during the period. When the operating height is lower than the set height threshold, the safety belts of the second set in the communication wake-up state are set to the communication dormant state and added to the first set.

8. The high-altitude work safety belt monitoring system according to claim 6, characterized in that: The system further comprises: The network update monitoring module is used to regularly conduct communication tests between the two seat belts in the linkage alarm group. When it is detected that the signal strength between the two seat belts is lower than the set strength threshold, the linkage alarm group relationship between the two seat belts is released, and the signal strength is retested to generate a new linkage alarm group.

9. The high-altitude work safety belt monitoring system according to any one of claims 6 to 8, characterized in that: The system further comprises: a first alarm module configured to, when a first alarm signal is generated by the first safety belt, measure the distance between the second safety belt and the first safety belt by using the signal strength between the second safety belt and the first safety belt; and, if the distance is not reduced to a set rescue distance threshold within a set rescue time threshold and the first alarm signal is not released during this period, search the first safety belt for other safety belts in the second set other than the second safety belt through a communication function and record them as third safety belts, and send the first alarm signal to the third safety belt to trigger it to generate a second alarm signal and notify its corresponding operator to inform, remind or help the operator corresponding to the first safety belt to correctly wear the first safety belt; The second alarm module is used to forward the first alarm signal to the fourth seat belt with the best signal strength through the communication relay function of the second seat belt or the third seat belt and trigger it to generate the second alarm signal when the first seat belt fails to search and connect to the third seat belt within the set connection time threshold through the communication function, or when the first seat belt is successfully connected to the third seat belt and the distance between the third seat belt and the first seat belt is not reduced to the set rescue distance within the set rescue time and the first alarm signal is not cancelled during this period; when the first alarm signal still cannot be cancelled within the set rescue time, the first alarm signal is forwarded to the remaining seat belts of the second set through the communication relay function of the second seat belt.

10. The high-altitude work safety belt monitoring system according to claim 4, characterized in that: The system further comprises: The third alarm module is used to record the second set of seat belts as the fifth seat belt when it does not form a linkage alarm group with other seat belts; when the first alarm signal occurs in the fifth seat belt, start the GPS or Beidou positioning system of the seat belts in the second set and find the sixth seat belt closest to the fifth seat belt and trigger it to generate a second alarm signal and inform, remind or help the operator corresponding to the sixth seat belt to wear the fifth seat belt correctly through the operator corresponding to the sixth seat belt; when the first alarm signal cannot be lifted within the set rescue time, find other seat belts that are next closest to the fifth seat belt in turn and trigger them to generate a second alarm signal.

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