Intelligent receiving system, receiving method and returning method of safety tools
The intelligent tool and equipment management system has solved the problems of error and omission in the traditional management model, realized the accurate receipt and return of tools and equipment, improved management efficiency and safety, and enhanced the sense of responsibility.
Patent Information
- Application Number
- CN202511623433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-02-27
AI Technical Summary
In high-risk operations, traditional tool management methods are prone to errors in requisition and omissions, resulting in low management efficiency, lack of effective prompts, and inability to achieve real-time monitoring and traceability.
An intelligent requisition system is adopted, including storage units, human-machine interface, main control unit and detection device. Through scenario-based guidance and mandatory prompts, the accurate retrieval and return of tools and equipment are ensured.
To prevent errors and omissions in requisition, improve management efficiency, standardize operating procedures, enhance awareness of responsibility, provide data support, and achieve real-time monitoring and traceability.
Smart Images
Figure CN121581789A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of tool management, in particular to an intelligent taking system, a taking method and a returning method of safety tools. BACKGROUND
[0002] In the high-risk operation fields such as electric power, petrochemical industry and construction, before engaging in a specific operation, the staff must take the corresponding safety tools (such as safety helmet, insulating gloves, safety belt, electricity tester, grounding wire, etc.) according to the work content and the site environment. At present, most of the tool storerooms still adopt the traditional "shelves placement, paper registration" management mode. This mode has the following defects:
[0003] Misleading taking: the staff, especially the new employees, may take mismatched or incomplete tools due to unfamiliarity with the procedures or negligence, which may cause safety hazards for on-site operation.
[0004] Low management efficiency: the taking and returning records rely on manual filling, which is low in efficiency and easy to make mistakes, and real-time monitoring and tracing cannot be realized.
[0005] Lack of effective prompt: the traditional shelves cannot actively inform the staff of what tools should be taken, and the whole process relies on the staff's self-consciousness and experience, lacking effective error prevention reminding mechanism.
[0006] Therefore, there is an urgent need for a device that can intelligently guide taking, prevent mistakes and strengthen the management process. SUMMARY
[0007] In order to overcome the above-mentioned shortcomings, the purpose of the present application is to provide an intelligent taking system, a taking method and a returning method of safety tools, so as to solve the problems of misleading taking, low management efficiency and lack of effective prompt in the tool storeroom mentioned in the background.
[0008] In order to achieve the above purpose, the technical scheme adopted by the present application is an intelligent taking system of safety tools, which comprises a storage unit, a man-machine interface, a main control unit, wherein:
[0009] The storage unit comprises a plurality of storage bins, each of which is used to store any type of safety tools. Each of the storage bins is provided with a prompt unit, a detection device and a manual control unit. The main control unit is in communication connection with the man-machine interface, the detection device and the prompt unit, and the manual control unit is in communication connection with the prompt unit.
[0010] The man-machine interface is used to obtain the target work scene of the staff.
[0011] The master control unit is used for determining the quantity category information of the safety tool corresponding to the target work scene, and issuing to the prompt unit storing the safety tool required by the target work scene.
[0012] The prompt unit is used for receiving the quantity category information of the safety tool and performing corresponding prompting.
[0013] The manual control unit is used for closing the prompt according to the operation signal of the worker.
[0014] The detection device is used for detecting the in-place state and off-site state of the safety tool, and transmitting the state information to the master control unit.
[0015] Further, the master control unit is one of a microcontroller or a micro-PLC.
[0016] Further, the human-computer interaction interface is one of a touch screen, a button-equipped selection panel or a two-dimensional code / NFC scanner.
[0017] Further, the detection device is one of a weight sensor, an infrared pair sensor, an RFID reader / writer or a microswitch.
[0018] Further, the prompt unit includes a first sound-light assembly and a second sound-light assembly, the first sound-light assembly and the second sound-light assembly each include an LED lamp and a buzzer, the light signal generated by the first sound-light assembly and the light signal generated by the second sound-light assembly have color difference, and the sound signal generated by the first sound-light assembly and the sound signal generated by the second sound-light assembly have sound frequency difference.
[0019] Further, the manual control unit includes a manual confirmation button, which is used for closing the light signal and the sound signal generated by the first sound-light assembly, or the light signal and the sound signal generated by the second sound-light assembly.
[0020] Further, the safety tool management system further includes a background information system, which is used for information management of the safety tool, including modification, increase or decrease of the safety tool name, and the target work scene associated with the safety tool.
[0021] The embodiment provided by the application further includes a safety tool taking method applied to the intelligent taking system of the safety tool, and includes the following steps.
[0022] The target work scene input by the worker is received through the human-computer interaction interface.
[0023] The main control unit determines one or more target tool storage compartments corresponding to the target work scene based on the preset scene-tool mapping relationship, and then controls the first audio-visual component in the target tool storage compartment to emit light and sound signals.
[0024] When the status detection unit detects that the tool in the target tool storage compartment has been taken away and is in an off-position state, the first acoustic and optical component maintains acoustic and optical signals.
[0025] The main control unit responds to the manual confirmation input from the manual control unit and controls the first audio-visual component to stop emitting light and sound signals.
[0026] The embodiments provided by this invention also include a method for returning safety tools and equipment, applied to an intelligent requisition system for safety tools and equipment, comprising:
[0027] When the status detection unit detects that the tool has been put back into the tool storage compartment and is in the in-position state, the main control unit controls the second audio-visual component in the tool storage compartment to emit light and sound signals.
[0028] The main control unit responds to the manual confirmation input from the manual control unit and controls the second audio-visual component to stop emitting light and sound signals.
[0029] Compared with the prior art, the present invention has the following significant advantages:
[0030] (1) Preventing errors and omissions, and improving safety: Through scenario-based guidance and mandatory prompts, the wrong and missing tools and equipment are eliminated from the source, thus strengthening work safety.
[0031] (2) Process standardization: The original requisition process that relied on personnel experience has been transformed into a standardized and mandatory electronic process, reducing human error.
[0032] (3) Intuitive operation and user-friendly experience: The integrated sound and light prompts are intuitive and eye-catching, and the guidance is clear, which reduces the training cost and learning threshold for operators.
[0033] (4) Strengthen the sense of responsibility: The "manual confirmation of closure" step requires staff to actively confirm each use and return, which enhances their sense of responsibility.
[0034] (5) Facilitates management and traceability: The main control unit can record operation logs for each use and return, providing data support for security management. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0036] Figure 1 This is a structural block diagram of an embodiment of the present invention;
[0037] Figure 2 This is a schematic diagram of the structure of a single storage compartment according to an embodiment of the present invention, wherein the detection device adopts a micro switch;
[0038] Figure 3 The process of an embodiment of the present invention Figure 1 ;
[0039] Figure 4 The process of an embodiment of the present invention Figure 2 . Detailed Implementation
[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0041] refer to Figure 1 and Figure 2 , Figure 1 This diagram illustrates a structural block diagram of an intelligent requisition system for safety tools provided in an embodiment of the present invention. Figure 2 The diagram shows a single storage compartment of an intelligent requisition system for safety tools provided in an embodiment of the present invention, wherein the detection device adopts a micro switch.
[0042] like Figure 1 and Figure 2As shown, the technical solution provided by this invention is an intelligent requisition system for safety tools, including a storage unit, a human-machine interface, and a main control unit. The storage unit comprises multiple storage compartments, each used to store any type of safety tool. Each storage compartment is equipped with a prompting unit, a detection device, and a manual control unit. The main control unit is communicatively connected to the human-machine interface, the detection device, and the prompting unit, respectively. The manual control unit is communicatively connected to the prompting unit. The human-machine interface is used to acquire the target work scenario of the worker. The main control unit is used to determine the quantity and category information of the safety tools corresponding to the target work scenario and sends it to the prompting unit corresponding to the safety tools required for that target work scenario. The prompting unit is used to receive the quantity and category information of the safety tools and provide corresponding prompts. The manual control unit is used to turn off the prompts based on the worker's operation signals. The detection device is used to detect the on-site and off-site states of the safety tools and transmit the status information to the main control unit.
[0043] This application provides an intelligent requisition system for safety tools. After obtaining the target work scenario from the worker through a human-computer interaction interface, the main control unit can determine the quantity and category information of the safety tools corresponding to the target work scenario and send it to the prompt unit storing the corresponding safety tools required for that target work scenario. Through precise prompts and detection mechanisms, workers are required to requisition and return the tools according to the process set by the intelligent requisition system. Workers can quickly locate the storage compartment for the required safety tools based on the prompts, avoiding blind searching and missed requisitions. For some complex work tasks that may require multiple safety tools, this intelligent requisition system can determine the quantity and category information of multiple safety tools at once and provide prompts. Compared with the traditional method of manually searching for each tool one by one, it can guide workers to find all the necessary tools at the same time, reducing the time workers spend shuttling back and forth between different storage areas and improving the efficiency of batch requisition. The detection device can detect the on-site and off-site status of safety tools in real time, thereby enabling real-time monitoring of the usage status of each safety tool.
[0044] In some embodiments, the main control unit is a microcontroller (such as the STM32 series, Arduino) or a micro PLC.
[0045] For example, both microcontrollers and micro PLCs offer high programming flexibility. Microcontrollers can implement various complex logic controls through software programming, while micro PLCs can be programmed using ladder diagrams, instruction lists, and other methods. This allows intelligent requisition systems to be quickly modified and optimized according to different work scenarios and needs. For instance, if it is necessary to add new types of safety tools or change the requisition process, only simple modifications to the main control unit's program are required, without replacing the hardware.
[0046] In some embodiments, the human-computer interaction interface is one of a touch screen, a selection panel with buttons, or a QR code / NFC scanner.
[0047] For example, a touchscreen can provide an intuitive graphical user interface (GUI) where workers can select the required safety tools by touching icons or buttons on the screen. This interaction method is very intuitive, similar to using a smartphone or tablet, reducing operational complexity.
[0048] The selection panel with buttons facilitates simple operations. The button panel provides a quick and straightforward selection method, making it suitable for scenarios requiring rapid dispensing.
[0049] QR code / NFC scanners can quickly identify staff task information and required safety tools by scanning QR codes or NFC tags. This method is not only fast but also reduces human input errors and improves operational accuracy.
[0050] In some embodiments, the detection device is one of a weight sensor, an infrared beam sensor, an RFID reader, or a micro switch.
[0051] For example, weight sensors, infrared beam sensors, RFID readers, and micro switches—these four detection devices each have their advantages and can be selected according to different application scenarios and needs. For instance, weight sensors can be chosen for scenarios requiring high-precision detection, while RFID readers can be chosen for scenarios requiring non-contact detection. This diversity of detection methods makes the intelligent requisition system highly flexible.
[0052] In some embodiments, the prompting unit includes a first acoustic-light component and a second acoustic-light component. Both the first and second acoustic-light components include an LED light and a buzzer. The light signal generated by the first acoustic-light component and the light signal generated by the second acoustic-light component have a color difference. The sound signal generated by the first acoustic-light component and the sound signal generated by the second acoustic-light component have a sound frequency difference.
[0053] For example, by combining LED lights and a buzzer, the intelligent requisition system can provide both visual and auditory cues, making the prompts more intuitive. This allows staff to quickly identify the location of the required safety tools and improves interaction efficiency. Different colored lights and different frequency sounds clearly distinguish between the retrieval and return of safety tools. For instance, the first audio-visual component might use green light and a low-frequency sound to indicate retrieval, while the second audio-visual component might use red light and a high-frequency sound to indicate return. The difference in color and sound frequency makes the prompts more intuitive.
[0054] In some embodiments, the manual control unit includes a manual confirmation button for turning off the light and sound signals generated by the first audio-visual component or the light and sound signals generated by the second audio-visual component by pressing down the manual confirmation button.
[0055] In some embodiments, a background information system is also included for managing information on safety tools, including modifying, adding, or removing the names of safety tools and the target work scenarios associated with the safety tools.
[0056] For example, the background information system identifies the quantity and category information of safety tools and equipment, matches the corresponding storage warehouse number according to a preset scheme, and sends the warehouse number to the main control unit. For example, the background information system consists of a database, application software, and a server. After the human-computer interaction interface obtains the worker's target work scenario, the main control unit sends the task scenario information to the background information system. The background information system matches the corresponding storage warehouse number according to a preset scheme and returns the warehouse number to the main control unit.
[0057] Specifically, the preset solution is a set of rules developed based on the actual usage and business needs of the tool and equipment warehouse center, with a "scenario-tool" mapping relationship as the main strategy. The backend information system can update the safety tool and equipment information in the database in real time, ensuring the accuracy and timeliness of the information as the number of tools and work tasks increase.
[0058] refer to Figure 3 and Figure 4 , Figure 3 This invention illustrates a flowchart of a method for requisitioning safety tools and equipment according to an embodiment of the present invention. Figure 1 ; Figure 4 The flowchart illustrates a method for returning safety tools provided by an embodiment of the present invention. Figure 2 .
[0059] like Figure 3 As shown, the technical solution adopted by the present invention also includes a method for requisitioning safety tools and equipment, employing an intelligent requisitioning system for safety tools and equipment as described in any of the above embodiments. The requisitioning method includes:
[0060] S10. Receive the target work scenario input by the staff through the human-computer interaction interface.
[0061] For example, staff can operate the human-machine interface by touching, pressing, or scanning to select a work scenario. In one application scenario, the work tasks in the human-machine interface include "working at height," "live-line operation," and "high-voltage inspection." When a staff member clicks on the "working at height" area, the human-machine interface will sense the touch location and transmit the touch information to the main control unit, which will then analyze and process the touch information.
[0062] Specifically, the touchscreen generates an internal resistance change based on the location information of the touch and converts it into a corresponding electrical signal; the selection panel with buttons generates an electrical signal by causing the circuit to close or open when the button is pressed; when the user brings a QR code or NFC tag close to the scanner, the scanner detects the image of the QR code or the signal of the NFC tag. For NFC scanners, the antenna detects the wireless signal of the NFC tag and converts it into an electrical signal.
[0063] S11. The main control unit determines one or more target tool storage compartments corresponding to the target work scene according to the preset scene-tool mapping relationship, and then controls the first audio-visual component in the target tool storage compartment to emit light and sound signals.
[0064] For example, the main control unit receives electrical signals from the human-machine interface and identifies the type and content of the electrical signals. For instance, for a touchscreen, it identifies the touch location; for a button, it identifies the button number; and for a QR code / NFC scanner, it identifies the scanned data. Based on the parsed electrical signals, the main control unit determines the corresponding required tool storage compartment and the lighting and audio actions to be performed in that compartment according to a preset "scene-tool" mapping relationship, and generates a first lighting control signal and a first audio control signal.
[0065] The first audio-visual component receives a first light control signal and a first audio control signal. The first light control signal includes control signals for changes in light brightness, color, and flashing frequency. The LED light receives the control signal and flashes according to the information in the control signal. For example, if it receives a control signal for the LED light in the fifth storage compartment to flash blue light, the LED light in that compartment will start flashing blue light, thereby providing a prompt to the user.
[0066] The first audio control signal includes control signals for the buzzer's sound frequency, sound amplitude, and sound duration. The buzzer receives this control signal and sounds according to the information within it. For example, if a small-amplitude, short-interval, long-duration buzzer is received, the buzzer will start sounding accordingly.
[0067] S12. When the status detection unit detects that the tool in the target tool storage compartment has been taken away and is in an off-position state, the first acoustic and optical component maintains acoustic and optical signals.
[0068] For example, the detection device is used to detect the in-position and out-of-position states of the safety tool. Specifically, taking a micro switch as an example, when the worker takes out the tool from the target compartment, the tool changes from the in-position state to the out-of-position state. The mechanical structure of the micro switch is triggered, changing its electrical state. The change in electrical state (such as from closed to open) generates an electrical signal.
[0069] The main control unit receives electrical signals from the microswitch and determines whether the tool has moved by judging the changes in the microswitch's state. If the tool is confirmed to be moved, the system records the tool's requisition information in the background information system. During this process, the prompting unit continuously provides corresponding prompts.
[0070] S13. The main control unit responds to the manual confirmation input of the manual control unit and controls the first audio-visual component to stop emitting light and sound signals.
[0071] For example, after a worker retrieves the tools from the target compartment, they press a manual confirmation button. Pressing this button causes the circuit to close or open, generating an electrical signal. The main control unit receives this third electrical signal from the manual confirmation button and generates a second lighting control signal and a second audio control signal. These two signals are respectively the on / off control signals for the LED lights and buzzer in the first audio-visual assembly. Upon receiving the signals, the LED lights and buzzer stop responding, completing the retrieval process.
[0072] like Figure 4 As shown, the technical solution adopted by the present invention also includes a method for returning safety tools, employing an intelligent requisition system as described in any of the above embodiments. The method for returning the device includes:
[0073] S20. When the status detection unit detects that the tool has been put back into the tool storage compartment and is in the in-position state, the main control unit controls the second audio-visual component in the tool storage compartment to emit light and sound signals.
[0074] For example, when a worker puts a tool back into the target compartment, the mechanical structure of the micro switch is triggered, changing its electrical state. The change in electrical state (such as from open to closed) generates an electrical signal.
[0075] The main control unit receives electrical signals from a microswitch and determines whether the tool has moved by judging the changes in the microswitch's state. If the tool is confirmed to be in place, an electrical signal is generated. This generates a third lighting control signal and a third audio control signal. The second audio-visual component receives these signals. The third lighting control signal includes control over changes in brightness, color, and flashing frequency, and its content is completely different from the first lighting control signal. The LED receives this control signal and flashes according to the information within it.
[0076] The third audio control signal is a control signal that includes the sound frequency, sound amplitude, and sound duration of the buzzer, and its control content is completely different from that of the third audio control signal. The buzzer receives this control signal and sounds according to the information in the control signal.
[0077] S21. The main control unit responds to the manual confirmation input of the manual control unit and controls the second audio-visual component to stop emitting light and sound signals.
[0078] For example, after the staff returns the tools to the target compartment, they press the manual confirmation button. Pressing the button causes the circuit to close or open, generating an electrical signal. The main control unit receives the electrical signal from the manual confirmation button and generates a fourth light control signal and a fourth audio control signal. These signals are the turn-off control signals for the LED lights and buzzer in the second audio-visual assembly, respectively. Upon receiving the signals, the LED lights and buzzer stop their corresponding signals, completing the return process.
[0079] Specifically, this invention employs a closed-loop process of "scenario triggering → mandatory prompting → manual confirmation and closure," forcing staff to perform confirmation operations at key points. This minimizes the risk of incorrect or missed requisitions due to negligence and ensures the standardization of the return process. The following is a specific embodiment of an intelligent requisition system for safety tools provided by this invention, based on a microcontroller and a weight sensor, wherein:
[0080] Main control unit: An STM32F103 series microcontroller is used as the main control chip.
[0081] Human-computer interaction interface: It adopts a 7-inch resistive touch screen, which displays multiple virtual buttons, corresponding to typical scenarios such as "working at height", "working with electricity" and "working in confined spaces".
[0082] Storage Unit: A set of custom-made metal containers, divided into 8 independent storage compartments, each containing a custom-made plastic pallet.
[0083] Status detection unit: A miniature weight sensor is installed at the bottom of the pallet in each storage compartment. The main control unit reads the weight value through an HX711 analog-to-digital converter chip. When the weight value is lower than a set threshold, it is determined to be "off-site"; when the weight value recovers and stabilizes above the threshold, it is determined to be "in-site".
[0084] Notification Unit: Each storage compartment has a tri-color LED light (red, green, yellow) and a passive buzzer installed above the door.
[0085] Manual control unit: A self-resetting button with an indicator light is installed on the right side of the door of each storage compartment as a manual confirmation button.
[0086] The specific workflow is as follows:
[0087] Employee A needs to perform "high-altitude work," and he clicks the scene button on the touchscreen.
[0088] According to preset rules, the main control unit determines that in this scenario, it is necessary to collect compartment 1 (seat belt), compartment 2 (helmet), and compartment 5 (fall arrestor).
[0089] The main control unit immediately sends instructions to the prompting units in compartments 1, 2, and 5: the LED lights flash red and the buzzers emit a "beep beep" alarm sound.
[0090] Employee A walks to compartment 1 and takes the safety belt. The weight sensor signal in compartment 1 changes, and the main control unit knows that the equipment has been removed, but the notification continues.
[0091] Employee A presses the confirmation button for Warehouse No. 1. The button signal is transmitted to the main control unit, which then stops the prompts for that warehouse.
[0092] Employee A collected and confirmed the equipment in warehouses 2 and 5 in turn. At this point, all notifications were cleared, and the collection process was completed.
[0093] After completing the work, employee A returned the tools and equipment. When he put the safety helmet back into compartment 2, the weight sensor detected that the weight had returned to normal, and the main control unit controlled the LED light in that compartment to flash green, and the buzzer emitted a different frequency of alert sound.
[0094] Employee A presses the confirmation button in compartment 2, and the prompt is cleared. This process continues until all equipment has been returned and confirmed.
[0095] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, should be included within the protection scope of the present invention.
Claims
1. An intelligent requisition system for safety tools, characterized in that, It includes a storage unit, a human-computer interaction interface, and a main control unit, among which: The storage unit includes multiple storage compartments, each of which is used to store any type of safety tool; each storage compartment is equipped with a prompting unit, a detection device, and a manual control unit; the main control unit is communicatively connected to the human-machine interface, the detection device, and the prompting unit, respectively, and the manual control unit is communicatively connected to the prompting unit; The human-computer interaction interface is used to obtain the target work scenario of the staff; The main control unit is used to determine the quantity and category information of safety tools and equipment corresponding to the target work scenario, and send it to the prompt unit that stores the corresponding safety tools and equipment required for the target work scenario; The prompting unit is used to receive the quantity and category information of the safety tools and equipment, and to provide corresponding prompts; The manual control unit is used to turn off the prompts based on the operator's operation signals; The detection device is used to detect the in-position and out-of-position status of the safety tool and transmit the status information to the main control unit.
2. The intelligent requisition system for safety tools and equipment according to claim 1, characterized in that, The main control unit is either a microcontroller or a micro PLC.
3. The intelligent requisition system for safety tools and equipment according to claim 1, characterized in that, The human-computer interaction interface is one of a touch screen, a selection panel with buttons, or a QR code / NFC scanner.
4. The intelligent requisition system for safety tools and equipment according to claim 1, characterized in that, The detection device is one of a weight sensor, an infrared beam sensor, an RFID reader, or a micro switch.
5. The intelligent requisition system for safety tools and equipment according to claim 1, characterized in that, The prompting unit includes a first sound and light component and a second sound and light component. Both the first sound and light component and the second sound and light component include an LED light and a buzzer. The light signal generated by the first sound and light component and the light signal generated by the second sound and light component have different colors. The sound signal generated by the first sound and light component and the sound signal generated by the second sound and light component have different sound frequencies.
6. The intelligent requisition system for safety tools and equipment according to claim 5, characterized in that, The manual control unit includes a manual confirmation button for turning off the light and sound signals generated by the first audio-visual component or the second audio-visual component.
7. The intelligent requisition system for safety tools and equipment according to claim 1, characterized in that, It also includes a back-end information system for managing information on safety tools and equipment, including modifying, adding, or removing the names of safety tools and equipment, as well as the target work scenarios associated with the safety tools and equipment.
8. A method for requisitioning safety tools and equipment, characterized in that, Intelligent requisition systems for safety tools and equipment include: The system receives the target work scenario input by the staff through a human-computer interaction interface. The main control unit determines one or more target tool storage compartments corresponding to the target work scene based on the preset scene-tool mapping relationship, and then controls the first audio-visual component in the target tool storage compartment to emit light and sound signals. When the status detection unit detects that the tool in the target tool storage compartment has been taken away and is in an off-position state, the first acoustic and optical component maintains acoustic and optical signals. The main control unit responds to the manual confirmation input from the manual control unit and controls the first audio-visual component to stop emitting light and sound signals.
9. A method for returning safety tools, characterized in that, Intelligent requisition systems for safety tools and equipment include: When the status detection unit detects that the tool has been put back into the tool storage compartment and is in the in-position state, the main control unit controls the second audio-visual component in the tool storage compartment to emit light and sound signals. The main control unit responds to the manual confirmation input from the manual control unit and controls the second audio-visual component to stop emitting light and sound signals.