Intelligent safety auxiliary tool anti-double solution method and system for climbing operation

By designing the relationship between the pressure switch and electromagnetic switch status of hooks A and B, and combining pressure threshold setting and real-time monitoring, the problem of operators forgetting safety precautions is solved, and accurate monitoring and control of hook status is achieved, thereby improving operational safety and efficiency.

CN119733185BActive Publication Date: 2025-11-18PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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Patent Information

Application Number
CN202411797480.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-11-18
Estimated Expiration
2044-12-09

AI Technical Summary

Technical Problem

Some workers may forget to take safety precautions during work, such as not fastening their safety belts properly or not checking that the hooks are secure. Ground supervisors may find it difficult to accurately assess the safety situation and issue timely warnings and reminders to workers at height, resulting in safety hazards not being corrected in time.

Method used

The design employs the relationship between the pressure switch and electromagnetic switch status of hooks A and B, combined with pressure threshold setting and real-time monitoring. The control module enables accurate monitoring and control of the hook status. Equipped with audible and visual warnings and a multi-functional collaborative module, it provides functions such as height warning, fall alarm, and dual-disarm warning.

Benefits of technology

It enables real-time and accurate monitoring of the hook status, timely prevention of double unhooking, improves operational safety and efficiency, and reduces operational delays and accidents caused by human factors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of safety auxiliary tools, in particular to a double solution prevention method and system of intelligent safety auxiliary tools for climbing operation, the method comprising setting A and B hooks in different working states in advance, the state relationship of pressure switches and electromagnetic switches in initial, hanging, first interaction and second interaction states, and the communication connection of A and B hooks with main boards and Bluetooth boards; setting hook pressure threshold values, and acquiring the pressure borne by the hooks in real time; in the interaction state, controlling the electromagnetic switches according to the hook pressure switch state, such as the action of the relevant electromagnetic switch when the A hook is normally hung in the first interaction state, and the specific processing of the opening of the A hook pressure switch; the second interaction state is the same; through the accurate setting of the state relationship and the threshold value, the hook state can be accurately monitored in real time by using the pressure sensor monitoring, and the double solution is effectively prevented. The present application can improve the operation safety, reduce the human error operation, enhance the system reliability and adaptability, and improve the operation efficiency.
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Description

Technical Field

[0001] This invention relates to the field of safety aids, and in particular to a method and system for preventing double-passing in intelligent safety aids for working at heights. Background Technology

[0002] In electrical construction, safety belts are one of the most important tools for protecting workers' safety. Although safety belts have undergone many improvements and are regularly replaced and maintained, accidents still occur among workers for various reasons.

[0003] In existing technologies, some workers may forget to take safety precautions during operations, such as not fastening their safety belts properly or not checking that the hooks are secure. This not only puts the workers themselves in danger, but also makes it difficult for ground supervisors to accurately assess their safety status. If a safety belt is not fastened properly or the hook is not secure, it is impossible to issue timely warnings and reminders to workers at height, which is not conducive to correcting safety hazards in a timely manner and ensuring operational safety.

[0004] Therefore, it is necessary to propose a method and system for preventing double-crossing in intelligent safety assistance tools for high-altitude operations to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for preventing double-unfastening of intelligent safety aids for working at heights, in order to solve the problem that some workers easily forget to take safety precautions during the operation, such as not fastening their safety belts properly or not checking whether the hooks are secure. This not only puts the workers in a dangerous situation, but also makes it difficult for ground supervisors to accurately judge their safety status. Once a situation is found that the safety belt is not fastened properly or the hook is not secure, it is impossible to issue timely warnings and reminders to the workers at heights, which is not conducive to timely correction of safety hazards and ensuring the safety of the operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method and system for preventing double-access vulnerabilities in intelligent safety aids for working at heights, the method comprising:

[0008] The state relationship between the pressure switch and the electromagnetic switch of hooks A and B under different working states is preset. The working states include the initial state, the hooked state, the first interactive state and the second interactive state. Hook A is connected to the main board of hook A and hook B is connected to the Bluetooth board of hook B.

[0009] Set hook pressure thresholds that keep the pressure switches of hook A and hook B closed, respectively.

[0010] The pressure on hooks A and B is acquired in real time, respectively.

[0011] In the first interactive state, when the main board of hook A detects that the pressure switch of hook A is in the closed state, the electromagnetic switch of hook A is closed. When the main board of hook A detects that the pressure switch of hook B is in the open state, the electromagnetic switch of hook B is open. At this time, if the main board of hook A detects that the pressure switch of hook A is open, the electromagnetic switch of hook A will not execute the command and will remain in the closed state.

[0012] In the second interactive state, when the main board of hook A detects that the pressure switch of hook A is in the open state, the electromagnetic switch of hook A is turned on. When the main board of hook A detects that the pressure switch of hook B is in the closed state, the electromagnetic switch of hook B is turned off. At this time, if the main board of hook A detects that the pressure switch of hook B is open, the electromagnetic switch of hook B will not execute the command and will remain in the closed state.

[0013] Preferably, the initial state is when the worker places the hook in the initial position before preparing to climb, and has not yet applied their own weight to the hook. At this time, the pressure switches of hook A and hook B are both in the open state; the electromagnetic switch of hook A is in the closed state, and the electromagnetic switch of hook B is in the open state.

[0014] The "hooked" state refers to the worker transferring their own weight to hook A via the safety belt, indicating that hook A is correctly hooked and the operation is safe. At this time, the pressure switches of hook A and hook B are both in the off state; the electromagnetic switches of hook A and hook B are also in the off state.

[0015] The first interactive state is that hook A is continuously and normally hooked, bearing the weight of the worker. At this time, hook B is disengaged. At this time, the pressure switch and electromagnetic switch of hook A are both in the closed state; the pressure switch and electromagnetic switch of hook B are both in the open state.

[0016] The second interactive state is when hook A is detached and hook B remains normally attached. At this time, both the pressure switch and the solenoid switch of hook A are in the open state, while both the pressure switch and the solenoid switch of hook B are in the closed state.

[0017] Preferably, the closed state is when the hook is under pressure, the pressure switch is closed; conversely, the open state is when the hook is not under pressure or the pressure is small. The pressure switch and the electromagnetic switch cooperate to monitor and control the safety status of the hook during high-altitude operations.

[0018] Preferably, when the pressure on hook A or hook B is within the hook pressure threshold, hook A or hook B remains closed; when the pressure on hook A or hook B is outside the hook pressure threshold, hook A or hook B opens.

[0019] Preferably, the method for setting the hook pressure threshold is as follows:

[0020] Data on hook pressure of workers of different weights during simulated high-altitude operations were collected, including data on normal hooking, various working actions, and possible abnormal stress conditions. Statistical analysis was performed on this data to determine parameters such as the distribution range, average value, maximum value, and minimum value of the pressure.

[0021] Based on the results of data collection and analysis, the threshold range was initially determined;

[0022] In actual high-altitude work environments, samples are used to test the initially set threshold range and observe whether the pressure switch's status under different working conditions meets expectations, i.e., whether it is stably closed when normally engaged and whether it opens in time under abnormal conditions. If misjudgment of the pressure switch is found, such as frequent opening during normal operations or failure to open in time under dangerous conditions, the threshold is adjusted according to the test results.

[0023] After multiple tests and adjustments, the pressure switch can accurately open or close according to the hook status under various actual operating conditions. A safety margin is added to determine the final hook pressure threshold.

[0024] Preferably, to ensure safety, a certain safety margin should be added when determining the threshold. Even in some extreme cases, such as when the hook is slightly bumped or the operator suddenly shakes, the hook can remain in a safe closed state. The size of the safety margin can be determined according to the risk level of the working environment and the safety requirements. Generally, it is 10%-20% more than the normal pressure range.

[0025] Preferably, the initial state, the hooked state, the first interactive state, and the second interactive state have different audio-visual warning effects. When hook A and hook B are in one of the working states and the system does not follow the process of the corresponding state, the audio-visual warning effect corresponding to the system fault is triggered.

[0026] Preferably, the method further includes safety aids, including a height warning, a fall alarm, and a double-hook warning. The height warning is triggered when the worker climbs to a certain height, based on a preset height threshold. The fall alarm is triggered when the worker's body suddenly accelerates downwards, indicating a possible fall. The double-hook warning is issued when the system detects a potential danger of two safety hooks simultaneously detaching, alerting the worker and prompting them to take corrective action.

[0027] Preferably, the system includes:

[0028] Control module: Responsible for the operation logic control of the entire system. Based on the information fed back by the monitoring module, it makes decisions according to the preset program and algorithm. Based on the pressure switch status of the hook, it controls the opening or closing of the electromagnetic switch to realize the function logic of preventing double unlocking.

[0029] Monitoring module: It monitors the pressure on the hook in real time through pressure sensors, converts the pressure data into electrical signals and transmits them to the control module. It also includes other sensors, such as height sensors and acceleration sensors, to monitor relevant parameters of the working environment.

[0030] Communication module: Enables data communication between various modules within the system, ensuring that the data collected by the monitoring module can be accurately and quickly transmitted to the control module, and that the commands from the control module can be promptly transmitted to other relevant modules;

[0031] Audible and visual warning module: Based on the instructions of the control module, it emits corresponding audible and visual warning signals in different working states to intuitively convey the hook status and work safety information to the operators;

[0032] Power module: Provides a stable power supply to all modules of the system, ensuring that the system can work normally;

[0033] Multifunctional collaborative module: It integrates multiple functions such as height warning, fall alarm and anti-double unlocking, so that they can work together, avoid mutual interference between functions and improve the overall system performance.

[0034] Preferably, this application provides an intelligent safety assistance tool for working at heights, including a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor. The transceiver, the memory, and the processor are connected via the bus, and the computer program, when executed by the processor, implements the steps in any of the methods described above.

[0035] The technical effects and advantages of this invention are as follows:

[0036] 1. By precisely setting the state relationship between the pressure switch and the electromagnetic switch under different working conditions of the hook, and by setting a reasonable hook pressure threshold, the hook status can be monitored in real time and accurately, and the occurrence of double unlocking can be detected and prevented in a timely manner.

[0037] 2. The system's real-time monitoring and prompting functions, such as audible and visual warnings under different working conditions, can guide operators to operate the hook correctly and avoid work interruptions or accident handling time caused by forgetting to take safety precautions, such as not fastening the safety belt correctly, not checking whether the hook is secure, or incorrect operation, such as double unfastening. This makes the operation process smoother, reduces work delays caused by human factors, and improves overall work efficiency.

[0038] 3. The hook pressure monitoring and electromagnetic switch control logic based on the pressure sensor, after careful design and debugging, can accurately judge the hook status and execute corresponding control actions under various complex operating conditions, ensuring that the hook is always in a safe and controllable state, and improving the reliability of the system for hook status monitoring and control. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a method for preventing double-explosion in an intelligent safety auxiliary tool for working at heights, according to the present invention.

[0040] Figure 2 This is a schematic diagram of the structure of the method for setting the hook pressure threshold of the present invention.

[0041] Figure 3 This is a schematic diagram of the structure of an intelligent safety auxiliary tool for high-altitude operations, namely, an anti-dual-disassembly system. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] This invention provides, for example Figures 1-2 The method for preventing double-passing in an intelligent safety aid tool for working at heights, as shown, specifically includes the following steps:

[0044] S1: Pre-set the state relationship between the pressure switch and the electromagnetic switch of hooks A and B under different working states. The working states include the initial state, the hooked state, the first interaction state and the second interaction state. Hook A is connected to the main board of hook A and hook B is connected to the Bluetooth board of hook B.

[0045] S2: Set the hook pressure thresholds that keep the pressure switches of hook A and hook B closed, respectively;

[0046] S3: Real-time acquisition of the pressure on hooks A and B respectively;

[0047] S4: In the first interactive state, when the main board of hook A detects that the pressure switch of hook A is in the closed state, the electromagnetic switch of hook A is closed. When the main board of hook A detects that the pressure switch of hook B is in the open state, the electromagnetic switch of hook B is open. At this time, if the main board of hook A detects that the pressure switch of hook A is open, the electromagnetic switch of hook A will not execute the command and will remain in the closed state.

[0048] S5: In the second interactive state, when the main board of hook A detects that the pressure switch of hook A is in the open state, the electromagnetic switch of hook A is opened. When the main board of hook A detects that the pressure switch of hook B is in the closed state, the electromagnetic switch of hook B is closed. At this time, if the main board of hook A detects that the pressure switch of hook B is open, the electromagnetic switch of hook B will not execute the command and will remain in the closed state.

[0049] Furthermore, the initial state is that before the worker is ready to climb, the hook is placed in the initial position and the worker has not yet applied their own weight to the hook. At this time, the pressure switches of hook A and hook B are both in the open state; the electromagnetic switch of hook A is in the closed state and the electromagnetic switch of hook B is in the open state.

[0050] When the hook is engaged, the worker transfers their weight to hook A via the safety belt, indicating that hook A is correctly engaged and the operation is safe. At this time, the pressure switches of hooks A and B are both in the off position; the electromagnetic switches of hooks A and B are also in the off position.

[0051] The first interactive state is that hook A is continuously and normally hooked, bearing the weight of the worker. At this time, hook B is disengaged. At this time, the pressure switch and electromagnetic switch of hook A are both in the closed state; the pressure switch and electromagnetic switch of hook B are both in the open state.

[0052] The second interactive state is when hook A is detached and hook B remains normally engaged. In this state, both the pressure switch and the solenoid switch of hook A are in the open state, while both the pressure switch and the solenoid switch of hook B are in the closed state.

[0053] Furthermore, the closed state means that the pressure switch is closed when the hook is under pressure, and vice versa. The open state means that the pressure switch is open when the hook is not under pressure or the pressure is small. The pressure switch and the electromagnetic switch work together to monitor and control the safety status of the hook during high-altitude operations.

[0054] In this embodiment of the invention, before carrying out high-altitude operations, the working state of the safety auxiliary tools is first determined, namely the initial state, the hooked state, the first interactive state, and the second interactive state. When setting the state relationship, various situations that may occur in actual operations need to be considered, such as the operating habits of the workers and the impact of the working environment on the hook.

[0055] The B hook Bluetooth board supports 4.2 dual-mode Bluetooth communication. In addition, a wired communication line is added to avoid Bluetooth communication being interfered with by surrounding devices or environmental factors, which may cause data loss or delay and make the electromagnetic lock action inconsistent with the actual hook state.

[0056] By precisely setting the relationship between the pressure switch and the electromagnetic switch under different working conditions, accurate monitoring and control of the hook status can be achieved, effectively preventing double unlocking.

[0057] Please see Figure 2 In one embodiment of the present invention, when the pressure on hook A or hook B is within the hook pressure threshold, hook A or hook B remains closed; when the pressure on hook A or hook B is outside the hook pressure threshold, hook A or hook B opens.

[0058] Furthermore, the method for setting the hook pressure threshold is as follows:

[0059] S21: Collect hook pressure data of workers of different weights during simulated high-altitude operations, including data under normal hooking, various working actions, and possible abnormal stress conditions. Perform statistical analysis on these data to determine the distribution range, average value, maximum value, and minimum value parameters of the pressure.

[0060] S22: Based on the results of data collection and analysis, the threshold range is initially determined;

[0061] S23: In actual high-altitude operation environments, use samples to test the initially set threshold range and observe whether the state of the pressure switch under different operating conditions meets expectations, that is, whether it is stably closed when normally engaged and whether it opens in time under abnormal conditions; if it is found that the pressure switch misjudges, such as frequently opening during normal operation or failing to open in time under dangerous conditions, adjust the threshold according to the test results;

[0062] S24: After multiple tests and adjustments, the pressure switch can accurately open or close according to the hook status under various actual operating conditions. A safety margin is added to determine the final hook pressure threshold.

[0063] Furthermore, to ensure safety, a certain safety margin should be added when determining the threshold. Even in some extreme cases, such as when the hook is slightly bumped or the operator suddenly shakes, the hook can remain in a safe closed state. The size of the safety margin can be determined according to the risk level of the working environment and the safety requirements. Generally, it is 10%-20% more than the normal pressure range.

[0064] In this embodiment of the invention, workers of different weight ranges, such as 50kg-100kg, are organized to conduct simulated high-altitude work tests. During the test, high-precision pressure sensors are used to accurately measure the pressure data of hooks A and B under normal hanging, various work actions, such as climbing, turning, and stretching, as well as possible abnormal force conditions, such as slight collisions to the hooks and sudden shaking of the workers. The large amount of pressure data collected is statistically analyzed. Based on the data analysis results, the average pressure is used as a basis, and the pressure variation range is combined to initially set the hook pressure threshold range.

[0065] In actual high-altitude operation environments, representative work scenarios are selected, and sample tools are used for testing. After multiple tests and adjustments, the pressure switch can accurately open or close according to the hook status under various actual work conditions. Considering a certain safety margin, such as adding 10%-20% margin to the normal pressure range, the margin is determined according to the risk level of the work environment. Assuming that it is determined to be 15% here, the final lower limit of the threshold is 300N×(1+15%)=345N, and the upper limit is 500N×(1+15%)=575N. The final hook pressure threshold is determined.

[0066] Please see Figure 1 In one embodiment of the present invention, the initial state, the hooked state, the first interactive state and the second interactive state have different audio-visual warning effects. When hook A and hook B are in one of the working states and the system does not follow the process of the corresponding state, the audio-visual warning effect corresponding to the system fault is triggered.

[0067] In this embodiment of the invention, the sound warning device should be a loudspeaker or buzzer with high volume, clear sound quality and different audio output capabilities, and should be installed in a position that is easy for the operator to hear, such as a conspicuous place on the aerial work equipment or a position close to the operator's ear; the light warning device should use a high-brightness, low-power LED light with multiple color display capabilities, such as red, green, blue, yellow, white, etc., and the light should be installed near the hook or in a place that is easy for the operator to see, such as on the bracket of the aerial work equipment or in a conspicuous position on the hook itself, to ensure that it will not affect the normal use of the hook;

[0068] Considering different working environments and individual differences among workers, such as hearing or vision problems, the system's audio-visual warning effect can be designed to be adjustable. Workers can adjust the volume of the sound within a certain range according to the actual situation, or select different flashing frequencies and brightness modes of the lights, ensuring that they can receive the warning information most effectively without affecting the warning effect. At the same time, during the system setup or maintenance process, the audio-visual warning effect can also be optimized and adjusted according to the characteristics of the actual working environment, such as noise levels and lighting conditions, so that the system can better adapt to various complex high-altitude work scenarios and improve the reliability and practicality of the warning effect.

[0069] With clear audible and visual warnings under different working conditions, operators can intuitively and promptly understand the current status of the hook, such as whether it is properly hooked or whether the hook has come loose. This allows them to take appropriate measures in a timely manner during operations, such as adjusting the hook position or checking the hook connection. This effectively prevents safety accidents such as falls from heights caused by hook problems, improves operational safety and reliability, and enhances the convenience and efficiency of operators.

[0070] In one embodiment of the present invention, the double-hook prevention method further includes safety aids, including a height warning, a fall alarm, and a double-hook warning. The height warning is triggered when the worker climbs to a certain height, based on a preset height threshold. The fall alarm is triggered when the worker's body suddenly accelerates downwards, indicating a possible fall. The double-hook warning is issued when the system detects a dangerous situation where two safety hooks may be simultaneously undone, to remind the worker and prompt them to take corrective measures.

[0071] In this embodiment of the invention, when the worker begins to climb, the height sensor starts to work and continuously measures the height of the worker relative to the ground. When the worker climbs to a preset height threshold, the control module receives the height data from the height sensor and compares it with the preset height threshold. When the height sensor measures that the height of the worker has reached or exceeded the height threshold, the control module sends a command to the sound and light warning module to trigger a climbing warning.

[0072] Accelerometers monitor changes in the acceleration of the worker's body in real time. During the operation, the accelerometers continuously collect data and accurately measure the acceleration values ​​of the worker in the three coordinate axes (X, Y, and Z axes). When the worker's body suddenly accelerates downward, the accelerometers detect that the acceleration value in the Z-axis direction increases rapidly and exceeds the preset fall detection threshold. After receiving the abnormal data from the accelerometers, the control module analyzes and judges it through the built-in algorithm to determine that the worker may have fallen. Once a fall is determined, the control module immediately instructs the audible and visual warning module to issue a fall alarm.

[0073] The status of the hooks is monitored in real time by pressure sensors installed on hooks A and B. The pressure sensors transmit the pressure data of the hooks to the control module. The control module determines whether the hooks are in a normal hooking state according to the preset logic. During the operation, the hook pressure is continuously monitored and analyzed. When the system detects that the pressure of hooks A and B changes abnormally at the same time, such as the pressure value drops sharply or becomes zero, and this change is consistent with the double release characteristic pattern, the control module determines that there may be a dangerous situation where the two safety hooks are released at the same time, and the control module immediately triggers a double release warning.

[0074] This invention provides, for example Figure 3 The above-described intelligent safety aid tool for working at heights, a double-unlocking system, includes the following modules:

[0075] Control module 100: Responsible for the operation logic control of the entire system. Based on the information fed back by the monitoring module, it makes decisions according to the preset program and algorithm. Based on the pressure switch status of the hook, it controls the opening or closing of the electromagnetic switch to realize the function logic of preventing double unlocking.

[0076] Monitoring module 200: It monitors the pressure on the hook in real time through a pressure sensor, converts the pressure data into an electrical signal and transmits it to the control module. It also includes other sensors, such as a height sensor and an acceleration sensor, to monitor relevant parameters of the working environment.

[0077] Communication module 300: Enables data communication between various modules within the system, ensuring that the data collected by the monitoring module can be accurately and quickly transmitted to the control module, and that the instructions from the control module can be promptly transmitted to other relevant modules;

[0078] Audible and visual warning module 400: According to the instructions of the control module, it emits corresponding audible and visual warning signals in different working states to intuitively convey the hook status and work safety information to the operators;

[0079] Power module 500: Provides a stable power supply to all modules of the entire system, ensuring that the system can work normally;

[0080] Multifunctional Collaborative Module 600: Integrates multiple functions such as height warning, fall alarm and anti-double decoding, enabling them to work together, avoiding mutual interference between functions and improving the overall system performance;

[0081] In this embodiment of the invention, the main control system of the safety auxiliary tool adopts the 8910 platform, supports 4.2 dual-mode Bluetooth and multiple development methods, and the auxiliary control system adopts a BLE Bluetooth built-in microcontroller, with master-slave communication to ensure functional development.

[0082] To ensure the long-term stable use of the safety assistance tool, a solar charging module will be designed into the tool to charge the power module of the tool control system. The power module is planned to use a 3.8V, 1000mAh lithium battery, which is safe, stable, and has a long battery life.

[0083] In addition, the present invention also provides an intelligent safety auxiliary tool for working at heights, comprising a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and capable of running on the processor. The transceiver, the memory, and the processor are connected via a bus. When the computer program is executed by the processor, it implements the various processes of the above-described anti-double-scraping method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0084] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A method for preventing double-access vulnerabilities in an intelligent safety aid tool for working at heights, the method comprising: The state relationships of the pressure switches and electromagnetic switches of hooks A and B under different working states are pre-defined. The working states include initial state, hooked state, first interaction state, and second interaction state. Hook A is connected to the A hook motherboard, and hook B is connected to the B hook Bluetooth board. Hook pressure thresholds are set to keep the pressure switches of hooks A and B closed. The pressure on hooks A and B is acquired in real time. In the first interaction state, when the A hook motherboard detects that the pressure switch of hook A is closed, the electromagnetic switch of hook A is closed; when the A hook motherboard detects that the pressure switch of hook B is open, the electromagnetic switch of hook B is open. If the A hook motherboard detects that the pressure switch of hook A is open, the electromagnetic switch of hook A remains closed without executing the command. In the second interaction state, when the A hook motherboard detects that the pressure switch of hook A is open, the electromagnetic switch of hook A is open; when the A hook motherboard detects that the pressure switch of hook B is closed, the electromagnetic switch of hook B is closed. If the A hook motherboard detects that the pressure switch of hook B is open, the electromagnetic switch of hook B remains closed without executing the command. When the pressure on hook A or hook B is within the hook pressure threshold, hook A or hook B remains closed; when the pressure on hook A or hook B is outside the hook pressure threshold, hook A or hook B opens. The method for setting the hook pressure threshold is as follows: collect hook pressure data of workers of different weights during simulated high-altitude operations, perform statistical analysis on these data, and determine the pressure distribution range, average value, maximum value, and minimum value parameters; based on the results of data collection and analysis, initially determine the threshold range; in actual high-altitude operation environments, use samples to test the initially set threshold range, and observe whether the state of the pressure switch under different operating conditions meets expectations, i.e., whether it is stably closed when normally hooked, and whether it opens in time under abnormal conditions; if it is found that the pressure switch misjudges, adjust the threshold according to the test results; after multiple tests and adjustments, when the pressure switch can accurately open or close according to the hook state under various actual operating conditions, add a safety margin, and determine the final hook pressure threshold.

2. The method for preventing double unlocking of an intelligent safety auxiliary tool for high-altitude operations according to claim 1, characterized in that: The initial state is when the worker places the hook in its initial position before starting work at height, without applying their own weight to it. At this time, the pressure switches of hooks A and B are both open; the electromagnetic switch of hook A is closed, and the electromagnetic switch of hook B is open. The hooking state is when the worker transfers their weight to hook A through the safety belt, indicating that hook A is correctly hooked and in a safe working state. At this time, the pressure switches of hooks A and B are both closed; the electromagnetic switches of hooks A and B are both closed. The first interactive state is when hook A remains properly hooked and bears the worker's weight, and hook B detaches. At this time, the pressure switches and electromagnetic switches of hook A are both closed; the pressure switches and electromagnetic switches of hook B are both open. The second interactive state is when hook A detaches, and hook B remains properly hooked. At this time, the pressure switches and electromagnetic switches of hook A are both open; the pressure switches and electromagnetic switches of hook B are both closed.

3. The method for preventing double unlocking of an intelligent safety auxiliary tool for high-altitude operations according to claim 2, characterized in that: The closed state means that the pressure switch is closed when the hook is under pressure, and vice versa. The open state means that the pressure switch is open when the hook is not under pressure or the pressure is small. The pressure switch and the electromagnetic switch work together to monitor and control the safety status of the hook during high-altitude operations.

4. The method for preventing double unlocking of an intelligent safety auxiliary tool for high-altitude operations according to claim 1, characterized in that: To ensure safety, a certain safety margin should be added when determining the threshold. Even in some extreme cases, the hook can remain in a safe closed state. The size of the safety margin can be determined according to the risk level of the working environment and the safety requirements. Generally, it is 10%-20% more than the normal pressure range.

5. The method for preventing double unlocking of an intelligent safety auxiliary tool for high-altitude operations according to claim 1, characterized in that: The initial state, the hooked state, the first interactive state, and the second interactive state have different audio-visual warning effects. When hook A and hook B are in one of the working states, if the system does not follow the process of the corresponding state, the audio-visual warning effect corresponding to the system fault will be triggered.

6. The method for preventing double unlocking of an intelligent safety auxiliary tool for high-altitude operations according to claim 1, characterized in that: The method also includes safety aids, including height warning, fall alarm, and double release warning. The height warning is triggered when the worker climbs to a certain height, based on a preset height threshold. The fall alarm is triggered when the worker's body suddenly accelerates downwards, indicating a fall. The double release warning is issued when the system detects that two safety hooks have simultaneously released, alerting the worker and prompting them to take corrective action.

7. A height-climbing operation intelligent safety auxiliary tool anti-double-unlocking system employing the anti-double-unlocking method as described in any one of claims 1-6, characterized in that, The system includes: a control module responsible for the overall system operation logic control; making decisions based on information from the monitoring module according to preset programs and algorithms; controlling the opening or closing of the electromagnetic switch based on the hook's pressure switch status to achieve the function logic of preventing double unlocking; a monitoring module that monitors the pressure on the hook in real time through a pressure sensor, converting the pressure data into electrical signals and transmitting them to the control module; also including a height sensor and an acceleration sensor for monitoring relevant parameters of the working environment; a communication module that enables data communication between the various modules within the system, ensuring that the data collected by the monitoring module can be accurately and quickly transmitted to the control module, and that the control module's instructions can be promptly conveyed to other relevant modules; an audible and visual warning module that, according to the instructions of the control module, emits corresponding audible and visual warning signals under different working states, intuitively conveying the hook status and work safety information to the operators; a power supply module that provides a stable power supply to all modules of the system, ensuring that the system can work normally; and a multi-functional coordination module that integrates multiple functions such as height warning, fall alarm, and double unlocking prevention, enabling them to work collaboratively, avoiding mutual interference between functions, and improving the overall performance of the system.

8. An intelligent safety assistance tool for working at heights, comprising a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the transceiver, the memory, and the processor are connected via the bus, characterized in that, When the computer program is executed by the processor, it implements the steps of the method as described in any one of claims 1-6.

Citation Information

Patent Citations

  • Intelligent highly safe system

    CN114613102A

  • High-altitude operation safety belt double-locking device

    CN214762963U