Safety belt intelligent hook control system for field close-range management and control and device of safety belt intelligent hook control system

Abstract

The invention relates to the field of high-altitude operation safety management, in particular to an intelligent safety belt hook control system and device for field close-range management and control, and the system comprises a first functional module and a second functional module which are connected through close-range wireless communication. The first function module is equipment for high-altitude operation workers and can execute the action of switching the safety belt hook between a mechanical locking state and a free state through an installed mechanical limiting fastener; and the second function module is held by a field safety manager and can send a signal for commanding state switching. And after the first function module receives the command state switching signal sent by the second function module, the switching action is executed. Through an operation process of approving and executing hook state switching, a hook use field management and control mechanism of'requesting-checking-approving-executing 'is established between a field safety manager and an operator, the phenomenon that the operator unlocks a safety belt hook illegally is completely eradicated, and safety accidents caused by the phenomenon are avoided.

Description

Technical Field

[0001] The present invention relates to the field of aerial work safety management, and in particular to a safety belt intelligent hook control system and a device thereof for on-site close-range control. Background Art

[0002] In the current production of the construction industry or other industries, aerial work is a major source of danger. Accidents of casualties caused by falling from heights are common. In the construction industry, aerial work is recognized as the primary safety threat. The aerial work environment is complex and changeable. Workers often need to hang or climb at high altitudes. The correct use of safety belts has become a key line of defense to ensure their life safety. However, in actual operations, some workers, for the sake of convenience, have the behavior of unhooking the safety belt hooks without authorization, or fail to re-fasten the safety belts in time after moving the work position. Due to the lack of an effective interactive mechanism, these illegal operations often fail to be immediately detected and corrected by on-site safety management personnel, resulting in a double lack of equipment protection and on-site safety management attention, which in turn leads to accidents. Therefore, in the management of aerial work, there is a problem that the illegal use of safety belt hooks has not been effectively controlled.

[0003] This problem has also been recognized by some industry practitioners, and they have tried to solve this problem by establishing interactive mechanisms or equipment. However, there are two major defects in their methods or equipment systems: First, their interactive mechanisms do not comply with the corresponding provisions of my country's "Work Safety Law". Current regulations require the implementation of the work safety responsibility system, in which the on-site safety responsibility subject is the full-time safety officer and the team leader of the part-time safety officer. In addition to these two, any personnel, behavior, and mechanism that manages the safety of the site through non-site methods are illegal, which will lead to confusion in the safety system and unclear job responsibilities; second, their equipment has many components, complex installation, high cost, and low efficiency, which makes the willingness of practitioners and personnel to accept it low, especially for maintenance and temporary projects with a large amount of investment. The above two major defects have led to the inability and unwillingness of practitioners and personnel to accept their methods or equipment, so they have no practical value. The market urgently needs an interactive mechanism and its products that comply with on-site safety management regulations and systems, are low-cost, simple and effective. Summary of the invention

[0004] The present invention provides a safety belt intelligent hook control system and device for high-altitude operations that can be controlled at close range on site, based on the on-site safety management system of full-time safety officers and part-time team leaders required by China's "Work Safety Law", and establishes a "request-review-approval-execution" hook use control mechanism between workers, safety officers or team leaders. By setting an intelligent hook at the safety belt, the on-site full-time safety officer or team leader who is also in charge of production safety can control its switch through wireless communication to prevent workers from unhooking without authorization; when a worker requests to unhook, the safety officer or team leader will immediately pay attention to it through sound and light prompts, and after taking corresponding additional safety precautions, the unhooking is authorized through wireless communication. This ensures that safety equipment protection and safety management attention are not lost at the same time, thereby ensuring the safety of workers working at heights.

[0005] In the first aspect, the present invention provides a safety belt intelligent hook control system for on-site close-range control, including a first functional module and a second functional module. The first functional module is worn by the controlled party-the worker, and the second functional module is held by the control party-the safety officer or the team leader.

[0006] The three functions of the first functional module are respectively the function of issuing an execution request signal, the function of receiving an execution approval command signal, and the function of executing a mechanical switching action. The function of issuing an execution request signal is to send a request signal to the second functional module for the hook to switch from a mechanically locked state to a free state, and at the same time enter the receiving state of returning an approval signal to the second functional module. If this state is not entered, the returned execution state switching command signal cannot be received to prevent misunderstanding of the hook by non-applicants. The function of receiving an execution approval command signal is to receive an execution state switching command signal from the second functional module; the function of executing a mechanical switching action is to switch the hook from a mechanically locked state to a free state. This action does not require any further operation by the first functional module, and sends a switching completion signal to the second functional module.

[0007] The second functional module has three functions, namely, receiving an execution request signal, issuing an execution approval command signal, and receiving a switching completion signal. The receiving execution request signal is to receive a request signal from the first functional module for the hook to switch from a mechanically locked state to a free state; the issuing execution approval command signal is to issue an execution state switching command signal to the first functional module, and the returned execution state switching command signal can only be received by the first module that applied; the receiving switching completion signal is to receive a switching completion signal issued by the first functional module.

[0008] The first functional module and the second functional module are connected via wireless communication.

[0009] The present invention provides a safety belt intelligent hook control system for on-site close-range management and control. By approving and executing the operation process of hook status switching, an on-site control mechanism of hook use of "request-review-approval-execution" is established between on-site safety management personnel and operating workers, so as to completely prevent the phenomenon of operating workers unhooking the safety belt in violation of regulations and avoid safety accidents caused thereby.

[0010] The wireless communication may be in various forms, such as ZigBee, WiFi, radio waves, infrared or cellular networks.

[0011] Preferably, the first functional module is connected to a first sounding element. When the first functional module sends out the request signal, the first sounding element can emit a predetermined sound. When receiving the signal of the execution state switching command returned by the second functional module, and after execution, the hook is in a free state, the first sounding element can emit a predetermined sound, prompting the worker that the hook has been switched to a free state and the next operation can be carried out. The second functional module is connected to a second sounding element. When receiving the request signal or the switching completion signal sent by the first functional module, the second sounding element can respectively emit two predetermined sounds to prompt the safety officer or team leader that a worker has issued a request, or that the worker has successfully switched. The first sounding element and the second sounding element can be either a speaker or a buzzer, which is used to play a predetermined prompt voice or sound.

[0012] Preferably, the first functional module is also connected to a first light element and a second light element. When the first functional module sends the request signal, the first light element can emit a bright light. When the first functional module receives a signal of an execution state switching command returned by the second functional module and executes the command to make the hook in a free state, the second light element can emit a bright light. These two lights can help the manager locate the worker and remind the worker that the application has been approved and executed.

[0013] The second functional module is also connected to a third lighting element and a fourth lighting element. When the second functional module receives the request signal sent by the first functional module, the third lighting element can emit a bright light to remind the safety manager that a worker has made an application and needs to pay attention to it and review whether its safety status and supplementary measures meet the conditions for unhooking. When the second functional module receives the switching completion signal sent by the first functional module, the fourth lighting element can emit a bright light to remind the safety manager to continue to pay attention to whether the worker's behavior is compliant. The lighting element can be in the form of an ordinary light-emitting diode, or an LED or OLED, and different predetermined prompts can be achieved through different colors.

[0014] The first functional module and the second functional module are connected via radio. After receiving the radio signal from the other party, both modules are equipped with sound and light prompting devices to promptly remind the operating workers or safety managers. At the same time, the workers' sound and light signals can also help the safety managers quickly locate the workers and implement safety attention and safety management in a timely manner.

[0015] Preferably, the second functional module matches multiple first functional modules and assigns numbers to the multiple first functional modules, and the second functional module is also connected to a display screen; when the second functional module receives the request signal, the display screen can sequentially display the numbers of the first functional modules corresponding to one or more of the request signals; the second functional module can control the display screen to switch between the numbers corresponding to the multiple request signals according to the selection signal, and the second functional module can send a signal of the execution state switching command to the first functional module corresponding to the number displayed on the display screen.

[0016] When receiving the request switching information of multiple first function modules, the numbers corresponding to the request signals are prompted on the display screen in turn. The safety manager can only approve the switching of the hook state for the workers who are determined to be safe and have taken additional safety measures. By triggering the selection signal to switch different numbers, the first function module matching the selected number can receive the approval signal, and other unselected numbers cannot receive the approval command even if they enter the receiving state of the returned approval execution signal. This solution allows a manager to manage multiple workers at the same time without making mistakes.

[0017] Preferably, the first functional module is provided with an autonomous emergency switching element. When the autonomous emergency switching element is triggered, the first functional module can perform the function of executing the mechanical switching action and return the switching completion signal to the second functional module, and at the same time, cause specific reactions of the first sounding element, the second sounding element, the first lighting element, the second lighting element, the third lighting element and the fourth lighting element.

[0018] This solution is used to enable workers to autonomously switch the hook to a free state in an emergency. For example, during production operations, if an earthquake or other emergency occurs, there is no time to wait for approval from management personnel. Workers can trigger the autonomous emergency switching element, and the first functional module will then control the safety belt hook to switch to a free state. At this time, workers can remove the safety belt hook from the anchor and quickly avoid danger. At the same time, the switching action will cause the sound and light devices of the first functional module and the second functional module to react violently together. After noticing the prompt alarm of the second functional module, the safety officer or team leader can quickly locate the worker who has unhooked himself according to the sound and light prompt of the first functional module. If this worker is triggered illegally, safety attention and safety management will be quickly carried out to avoid danger. If there is an emergency, other workers can be quickly prompted to perform emergency separation autonomously without having to authorize unhooking one by one. At the same time, other workers can also notice this violent alarm information. If it is triggered illegally, they can quickly stop it nearby or implement additional safety measures. If there is an emergency, other workers can make correct responses more quickly according to the safety training and emergency plans they have received, and they can even achieve collective risk avoidance without waiting for prompts from the safety officer or team leader.

[0019] Preferably, the first functional module and the second functional module are connected via short-range wireless communication, and the short-range wireless communication includes ZigBee, WiFi, radio waves or infrared rays.

[0020] In the second aspect, a safety belt intelligent hook control device for on-site close-range control is provided, the device comprising an intelligent controlled hook, a controller, and a safety belt intelligent hook control system for on-site close-range control. The intelligent controlled hook corresponds to the first functional module and is worn by the operating worker. The controller corresponds to the second functional module and is held by the safety management personnel.

[0021] The intelligent controlled hook is provided with a first operating box, a hook and a mechanical limit fastener, and the function of the first module is integrated in the first operating box. A request button is provided on one side of the first operating box, and a control circuit, a battery and a solenoid valve are provided inside the operating box. The first sound element, the first lighting element, the second lighting element and the autonomous emergency switching element are all arranged on the same side of the first operating box as the request button. The hook is used to connect an anchor, and the mechanical limit fastener can be disconnected or closed with the hook. The first operating box is connected to a safety belt, and its strength meets the national and industry requirements for force indicators, and is directly worn by workers. The battery can be repeatedly charged and discharged to provide electrical energy for the control circuit and the motor. The solenoid valve drives the mechanical limit fastener to perform mechanical movement, and the solenoid valve is controlled by the control circuit.

[0022] The controller is provided with a second operation box, and an approval button and a selection button are provided on one side of the second operation box. A battery and a storage element are provided inside the second operation box. A second sounding element, a third lighting element, a fourth lighting element and a display screen are all provided on the same side of the second operation box as the approval button.

[0023] The box bodies of the first operation box and the second operation box are high in strength and have a waterproof function.

[0024] The storage element is used to store the communication logs of the second functional module and each of the first functional modules. The communication log records all the communication between the second functional module and the matched first functional module. The safety officer or team leader can manage the rewards and punishments of the workers based on the statistical information, and further regulate the workers' use of the smart hook, for example, impose corresponding penalties on workers whose violation trigger times reach a certain number in non-emergency situations.

[0025] Pressing the request button can trigger the first functional module to send a request signal for the hook to switch from a mechanically locked state to a free state; pressing the approval button can trigger the second functional module to send a signal for executing a state switching command; pressing the selection button can trigger a selection signal in the second functional module.

[0026] The mechanical limit fastener can be completely closed or disconnected with the hook, corresponding to the mechanical locking state and free state of the hook. The following methods can be adopted: a limit hole is set on the mechanical limit fastener, and a limit rod is inserted into the limit hole to achieve the locking of the mechanical limit fastener; a protrusion that moves with the mechanical limit fastener is welded on the mechanical limit fastener, and a limit block is used to block the movement of the protrusion, thereby achieving the locking of the mechanical limit fastener.

[0027] Preferably, the autonomous emergency switch element is provided with an anti-mispress protection. The purpose is to prevent workers from accidentally pressing the autonomous emergency switch element. The anti-mispress protection measure can be provided with a protective cover, or the autonomous emergency switch element can be designed as a recessed structure to limit the range of direct pressing, thereby reducing the possibility of accidental touch.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention provides a safety belt intelligent hook control system with on-site close-range control. By approving and executing the operating process of hook status switching, a "request-review-approval-execution" on-site hook use control mechanism is established between on-site safety management personnel and operating workers, which completely prevents the phenomenon of operating workers unhooking the safety belts in violation of regulations and avoids safety accidents caused by it.

[0030] 2. The present invention provides a safety belt intelligent hook control device for on-site close-range control, comprising an intelligent controlled hook and a controller, wherein the intelligent controlled hook is worn by the operating workers, and the controller is held by the safety officer or team leader. The on-site control mechanism is established between the workers and the safety officer or team leader at the production site, and does not involve any other personnel and other off-site management. It is fully in line with the requirements of the safety production responsibility system in my country's "Safety Production Law" for full-time safety officers and part-time team leaders for on-site safety management, and is fully in line with the on-site management system and mechanism, and will not cause management confusion and unclear responsibilities.

[0031] 3. The present invention provides a safety belt intelligent hook control device for on-site close-range control, which is small in size and light in weight and will not affect the workers' production operations; in particular, it has a simple structure, and two operating boxes can complete all functions without involving any other equipment and facilities. It is convenient to configure and easy to operate, with low cost and good effect, and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The diagram is a schematic diagram of an intelligent controlled hook of a seat belt intelligent hook control device for on-site close-range control.

[0033] Figure 2 The present invention is a schematic diagram of a controller of a seat belt intelligent hook control device for on-site close-range control.

[0034] Markings in the figure:

[0035] 1- Intelligent controlled hook,

[0036] 101-hook, 102-mechanical limit fastener, 103-request button, 104-autonomous emergency switching element, 105-first lighting element, 106-second lighting element, 107-first sound element, 108-charging interface,

[0037] 2- Controller,

[0038] 201-approval button, 202-selection button, 203-third lighting element, 204-fourth lighting element, 205-second sound element, 206-display screen,

[0039] 3- Seat belt. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0041] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0043] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0044] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0045] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0046] Example 1

[0047] A safety belt intelligent hook control system for on-site close-range control includes a first functional module and a second functional module.

[0048] The first functional module has the functions of issuing an execution request signal, receiving an execution approval command signal and performing a mechanical switching action; the function of issuing an execution request signal is to issue a request signal to the second functional module to switch the hook from a mechanically locked state to a free state, and at the same time enter a receiving state to return an approval signal to the second functional module; the function of receiving an execution approval command signal is to receive a signal of an execution state switching command from the second functional module; the function of performing a mechanical switching action is that when the first functional module receives the signal of an execution state switching command from the second functional module, the first functional module switches the hook from a mechanically locked state to a free state, and issues a switching completion signal to the second functional module.

[0049] The second functional module has the functions of receiving an execution request signal, issuing an execution approval command signal and receiving a switching completion signal; the function of receiving the execution request signal is to receive a request signal from the first functional module for the hook to switch from a mechanical locking state to a free state; the function of issuing an execution approval command signal is to issue a signal of an execution state switching command to the first functional module; the function of receiving the switching completion signal is to receive the switching completion signal issued by the first functional module.

[0050] The first functional module and the second functional module are connected via wireless communication.

[0051] In an optional implementation, the first functional module may be connected to a first sounding element 107. When the first functional module sends the request signal, the first sounding element 107 can emit a predetermined sound, and the predetermined sound may be "di di, di di, di di...". When receiving the signal of the execution state switching command returned by the second functional module, the first sounding element 107 can emit a predetermined sound, and the predetermined sound may be "da da, da da, da da...". The second functional module is connected to a second sounding element 205, and when receiving the request signal sent by the first functional module, the second sounding element 205 can emit a predetermined sound, and the predetermined sound may be "ding ding, ding ding, ding ding...". When receiving the switching completion signal sent by the first functional module, the second sounding element 205 can emit a predetermined sound, and the predetermined sound may be "dong dong, dong dong, dong dong...".

[0052] Both the first sound emitting element 107 and the second sound emitting element 205 may be buzzers.

[0053] In an optional implementation, the first functional module may also be connected to a first lighting element 105 and a second lighting element 106. When the first functional module sends the request signal, the first lighting element 105 can emit a bright light. When the first functional module receives a signal of an execution state switching command returned by the second functional module, the second lighting element 106 can emit a bright light.

[0054] The second functional module may also be connected to a third lighting element 203 and a fourth lighting element 204. When the second functional module receives the request signal sent by the first functional module, the third lighting element 203 can emit light. When the second functional module receives the switching completion signal sent by the first functional module, the fourth lighting element 204 can emit light.

[0055] Specifically, the first light element 105 may be a red LED, which may emit a red flashing light, with a flashing frequency of 1-3 times per second; the second light element 106 may be a yellow LED, which may emit a yellow flashing light, with a flashing frequency of 1-3 times per second; the third light element 203 may be a blue LED, which may emit a blue flashing light, with a flashing frequency of 1-3 times per second; and the fourth light element 204 may be a green LED, which may emit a green flashing light, with a flashing frequency of 1-3 times per second.

[0056] In an optional implementation, the second functional module can match multiple first functional modules and assign numbers to multiple first functional modules, and the second functional module is also connected to a display screen 206. When the second functional module receives the request signal, the display screen 206 can sequentially display the numbers of the first functional modules corresponding to one or more of the request signals. The second functional module can control the display screen 206 to switch between the numbers corresponding to the multiple request signals according to the selection signal, and the second functional module can send a signal of the execution state switching command to the first functional module corresponding to the number displayed on the display screen 206.

[0057] In an optional embodiment, the first functional module may be provided with an autonomous emergency switching element 104. When the autonomous emergency switching element 104 is triggered, the first functional module can perform the function of executing the mechanical switching action and return the switching completion signal to the second functional module, and at the same time, cause specific reactions of the first sound element 107, the second sound element 205, the first light element 105, the second light element 106, the third light element 203 and the fourth light element 204. Specifically, the first sound element 107 and the second sound element 205 both emit the sound of "Dangdang, Dangdang, Dangdang...", and the first light element 105, the second light element 106, the third light element 203 and the fourth light element 204 respectively emit corresponding bright lights, and their colors are: red, yellow, blue and green, respectively.

[0058] In an optional implementation, the first functional module and the second functional module can be connected via short-range wireless communication, and the short-range wireless communication may include ZigBee, WiFi, radio waves or infrared. These four types of wireless communication methods are all prior art. The ZigBee is particularly suitable for short-range, low-rate data transmission scenarios, and can be used for two-way wireless connections between electronic components and devices. For example, a wireless network can be established between the first functional module and the second functional module via a ZigBee module. The first functional module and the second functional module can also be installed with a WiFi module and connected to the same WiFi router, thereby building a local wireless network to achieve communication. In addition, the first functional module and the second functional module can also communicate with each other directly using radio waves by installing a radio transceiver module. The first functional module and the second functional module can also be installed with an infrared transceiver to achieve mutual communication using infrared.

[0059] Example 2

[0060] like Figure 1 and Figure 2 As shown, a safety belt intelligent hook control device for on-site close-range control includes an intelligent controlled hook 1, a controller 2, and a control system for controlling the safety belt hook described in Example 1. The intelligent controlled hook 1 corresponds to the first functional module, the first functional module is installed on the intelligent controlled hook 1, and the intelligent controlled hook 1 is worn by the operating worker. The controller 2 corresponds to the second functional module, the second functional module is installed on the controller 2, and the controller 2 is held by the safety management personnel.

[0061] The intelligent controlled hook 1 is provided with a first operating box, a hook 101 and a mechanical limit fastener 102. A request button 103 is provided on one side of the first operating box, and a control circuit, a battery and a solenoid valve are provided inside the operating box. The first sounding element 107, the first lighting element 105, the second lighting element 106 and the autonomous emergency switching element 104 are all provided on the same side of the first operating box as the request button 103. The hook 101 is used to connect an anchor, and the mechanical limit fastener 102 can be disconnected or closed with the hook 101. The first operating box is connected to the safety belt 3, the battery can be repeatedly charged and discharged, and the solenoid valve drives the mechanical limit fastener 102 to perform mechanical movement.

[0062] The controller 2 is provided with a second operation box, and an approval button 201 and a selection button 202 are provided on one side of the second operation box. A battery and a storage element are provided inside the second operation box. A second sound element 205, a third light element 203, a fourth light element 204 and a display screen 206 are all provided on the same side of the second operation box as the approval button 201.

[0063] Pressing the request button 103 can trigger the first functional module to send a request signal for switching the hook from the mechanical locking state to the free state. Pressing the approval button 201 can trigger the second functional module to send a signal for executing the state switching command. Pressing the selection button 202 can trigger a selection signal in the second functional module.

[0064] Specifically, the anchor can be a metal ring anchored in the main structure of the building, or a steel pipe on the external wall scaffolding, etc. The hook 101 is arranged on the top of the first operation box and is the force-bearing body. The first operation box and the second operation box are made of metal. The hook 101 is connected to the first operation box by welding. An opening is reserved between the hook 101 and the first operation box. The mechanical limit fastener 102 is installed in the interior of the first operation box in a telescopic manner. When the mechanical limit fastener 102 extends from the first operation box, the opening can be closed, so that the hook 101, the mechanical limit fastener 102 and the first operation box form a closed loop. The connection point between the safety belt 3 and the first operation box is set at the bottom of the first operation box.

[0065] The selection button 202 is composed of two triangular buttons, one on the left and one on the right. When the left button is pressed, the display screen 206 is triggered to switch the numbering information forward; when the right button is pressed, the display screen 206 is triggered to switch the numbering information backward.

[0066] The safety belt 3 includes a belt body and a safety rope. The belt body is the main part of the safety belt 3, including a waist belt, a shoulder strap, a leg strap, etc., which is used to fix the safety belt 3 on the worker. The two ends of the safety rope are respectively connected to the belt body and the first operating box.

[0067] In order to ensure that the autonomous emergency switching element 104 is not accidentally touched, resulting in unnecessary emergency state switching, anti-mispress measures are set for it. The button needs to be pressed for more than 3 seconds to be triggered. At the same time, a protective cover with a spring buckle is installed, and the protective cover needs to be popped up before the button can be touched.

[0068] The locking state or free state of the hook 101 can be achieved by controlling the locking state or free state of the mechanical limit fastener 102 through the solenoid valve.

[0069] Specifically, the mechanical limit fastener 102 is in the shape of a long strip, and a protrusion that moves with the mechanical limit fastener 102 is welded on the mechanical limit fastener 102. In order to lock the mechanical limit fastener 102, a limit block can be used to block the movement of the protrusion, and the limit block is driven by a solenoid valve. When the mechanical limit fastener 102 and the hook 101 are switched from the disconnected state to the closed state, the solenoid valve is immediately started to push the limit block to block the protrusion, so that the mechanical limit fastener 102 cannot be moved, thereby achieving the locking of the mechanical limit fastener 102. After the intelligent controlled hook 1 receives the signal of the execution state switching command, the solenoid valve will be closed. At this time, the limit block returns to its original position under the action of the spring and no longer blocks the protrusion. The mechanical limit fastener 102 can move freely, and the locking state of the mechanical limit fastener 102 is also released, entering a free state.

[0070] The storage element is used to store the communication logs of the second functional module with each of the first functional modules. The communication logs are used to record the number of times the first functional module receives the request state switching information and the number of times the first functional module receives the state switching completion information every day.

[0071] The battery is used to power the intelligent controlled hook 1 or the controller 2, and the battery may be a rechargeable lithium battery. Specifically, the intelligent controlled hook 1 is also provided with a charging interface 108, and the charging interface 108 is used to connect to an external power source to charge the lithium battery.

[0072] Example 3

[0073] The following is an explanation of how to use the on-site close-range control safety belt intelligent hook control device in Example 2.

[0074] The intelligent controlled hook 1 is used by workers working at heights and is connected to the safety belt 3 worn by the workers. The controller 2 is held by a safety officer or a team leader. Before working at heights, the worker connects the hook 101 to the anchor. At this time, the mechanical limit fastener 102 automatically closes with the hook 101. After the first functional module in the intelligent controlled hook 1 detects that the mechanical limit fastener 102 and the hook 101 are switched from the disconnected state to the closed state, the mechanical limit fastener 102 will be locked. At this time, the worker cannot disconnect the mechanical limit fastener 102 from the hook 101 at will, and thus cannot remove the hook 101 from the anchor at will. When the worker needs to move the working surface and needs to remove the hook 101, the request button 103 is pressed to trigger the request signal. At the same time, the first sounding element 107 emits a "di, di, di..." prompt sound to prompt the worker that the request signal is sent successfully. The prompt sound can also guide the safety manager to quickly find the worker. The second functional module receives the request signal and controls the second sound-emitting element 205 to emit a "ding ding, ding ding, ding ding..." prompt sound to remind the management personnel that there is a request information issued by the worker.

[0075] When the safety manager finds and focuses his attention on the worker, and confirms that the worker is in a safe state or has corresponding safety measures, he presses the approval button 201, and the second functional module transmits the signal of the execution state switching command to the first functional module in the intelligent controlled hook 1 through wireless communication. The first functional module performs the function of executing the mechanical switching action. The first functional module switches the hook from the mechanical locked state to the free state. At the same time, the first functional module sends a switching completion signal to the second functional module, and the first sound element 107 can emit a "click, click, click..." prompt sound to prompt the worker that the hook 101 has switched to the free state. After the second functional module receives the switching completion signal, the second sound element 205 can emit a "dongdong, dongdong, dongdong..." prompt sound to prompt the safety manager that the corresponding hook 101 has switched to the free state. At this time, the worker can disconnect the mechanical limit fastener 102 from the hook 101, and then remove the hook 101 from the anchor and switch to the next position. After the worker reconnects the hook 101 to the new anchor and closes the mechanical limit fastener 102 and the hook 101, the safety manager can shift his attention to other places.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat belt intelligent hook control system for on-site close-range control, characterized by: comprising a first functional module and a second functional module; The first functional module has the functions of sending out an execution request signal, receiving an execution approval command signal and executing a mechanical switching action; the function of sending out an execution request signal is to send out a request signal to the second functional module for switching the hook from a mechanically locked state to a free state, and at the same time enter a receiving state for returning an approval signal to the second functional module; the function of receiving an execution approval command signal is to receive a signal of an execution state switching command from the second functional module; the function of executing a mechanical switching action is to switch the hook from a mechanically locked state to a free state, and send out a switching completion signal to the second functional module; The second functional module has the functions of receiving an execution request signal, issuing an execution approval command signal and receiving a switching completion signal; the function of receiving the execution request signal is to receive a request signal from the first functional module for the hook to switch from a mechanical locking state to a free state; the function of issuing the execution approval command signal is to issue a signal of an execution state switching command to the first functional module; the function of receiving the switching completion signal is to receive a switching completion signal issued by the first functional module; The first functional module and the second functional module are connected via wireless communication.

2. According to claim 1, a safety belt intelligent hook control system for on-site close-range control is characterized by: The first functional module is connected to a first sounding element (107); when the first functional module sends the request signal, the first sounding element (107) can emit a predetermined sound; when the first functional module receives a signal of an execution state switching command returned by the second functional module, the first sounding element (107) can emit a predetermined sound; the second functional module is connected to a second sounding element (205), and when the second functional module receives the request signal or the switching completion signal sent by the first functional module, the second sounding element (205) can respectively emit a predetermined sound.

3. According to claim 2, a seat belt intelligent hook control system for on-site close-range control is characterized by: The first functional module is also connected to a first lighting element (105) and a second lighting element (106); when the first functional module sends the request signal, the first lighting element (105) can emit bright light; when the first functional module receives a signal of an execution state switching command returned by the second functional module, the second lighting element (106) can emit bright light; The second functional module is also connected to a third lighting element (203) and a fourth lighting element (204); when the second functional module receives the request signal sent by the first functional module, the third lighting element (203) can emit bright light; when the second functional module receives the switching completion signal sent by the first functional module, the fourth lighting element (204) can emit bright light.

4. According to claim 3, a seat belt intelligent hook control system for on-site close-range control is characterized in that: The second functional module matches multiple first functional modules and assigns numbers to the multiple first functional modules. The second functional module is also connected to a display screen (206). When the second functional module receives the request signal, the display screen (206) can sequentially display the numbers of the first functional modules corresponding to one or more of the request signals. The second functional module can control the display screen (206) to switch between the numbers corresponding to the multiple request signals according to the selection signal, and the second functional module can send a signal of the execution state switching command to the first functional module corresponding to the number displayed on the display screen (206).

5. According to claim 4, a safety belt intelligent hook control system for on-site close-range control is characterized in that: The first functional module is provided with an autonomous emergency switching element (104); when the autonomous emergency switching element (104) is triggered, the first functional module can execute the function of executing the mechanical switching action and return the switching completion signal to the second functional module, and at the same time, cause specific reactions of the first sound element (107), the second sound element (205), the first lighting element (105), the second lighting element (106), the third lighting element (203) and the fourth lighting element (204).

6. According to claim 4, a safety belt intelligent hook control system for on-site close-range control is characterized in that: The first functional module and the second functional module are connected via short-range wireless communication, and the short-range wireless communication includes ZigBee, WiFi, radio waves or infrared rays.

7. A safety belt intelligent hook control device for on-site close-range control, characterized in that: The invention comprises an intelligent controlled hook (1), a controller (2) and a safety belt intelligent hook control system for on-site close-range control as claimed in any one of claims 5 to 6; the intelligent controlled hook (1) corresponds to a first functional module and is worn by an operating worker; the controller (2) corresponds to a second functional module and is held by a safety manager; The intelligent controlled hook (1) is provided with a first operating box, a hook (101) and a mechanical limit fastener (102); a request button (103) is provided on one side of the first operating box, and a control circuit, a storage battery and a solenoid valve are provided inside the operating box; a first sounding element (107), a first lighting element (105), a second lighting element (106) and an autonomous emergency switching element (104) are all provided on the same side of the first operating box as the request button (103); the hook (101) is used to connect an anchor, and the mechanical limit fastener (102) can be disconnected or closed with the hook (101); the first operating box is connected to a safety belt (3), the storage battery can be repeatedly charged and discharged, and the solenoid valve drives the mechanical limit fastener (102) to perform mechanical movement; The controller (2) is provided with a second operation box, and an approval button (201) and a selection button (202) are provided on one side of the second operation box; a storage battery and a storage element are provided inside the second operation box; a second sound-generating element (205), a third lighting element (203), a fourth lighting element (204) and a display screen (206) are all provided on the same side of the second operation box as the approval button (201); Pressing the request button (103) can trigger the first functional module to send a request signal for switching the hook from a mechanically locked state to a free state; pressing the approval button (201) can trigger the second functional module to send a signal for executing a state switching command; and pressing the selection button (202) can trigger a selection signal in the second functional module.

8. The seat belt intelligent hook control device for on-site close-range control according to claim 7 is characterized by: The autonomous emergency switching element (104) is provided with protection against mis-pressing.

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