A method for hanging and removing electronic signs during the process of applying for energy source suspension

Abstract

The present invention discloses a method for hanging and removing electronic signs in the process of applying for energy source suspension, including: setting up a server and configuring a client with a camera for each employee in each position participating in the hanging and removing activities; exchanging information by exchanging electronic signs, and finally completing the hanging operation after a series of processes such as the consent of the personnel in each participating position, cutting off the energy source, locking, controlling the opening of the electronic key cabinet, and storing the key for unlocking the energy source; after the maintenance is completed, the removal operation is completed by following the opposite process of the hanging. The present invention can effectively solve the problems of low hanging and removing efficiency, cumbersome paper records, and backward key storage methods. At the same time, it realizes the transition of equipment maintenance hanging and removing from offline to online.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical automation control, and in particular to a method for hanging and removing an electronic sign in the process of applying for energy source stop. Background Art

[0002] In the field of industrial production, maintenance personnel need to apply for a sign to stop the energy source before starting to repair the equipment, and need to apply for a sign to remove the sign to send the energy source after the maintenance is completed. The personal safety of maintenance personnel is ensured by cutting off the energy source. The above process is implemented by the maintenance applicant hanging and removing the energy source sign at each relevant position. The personnel information, project name, energy source sign name and time information involved in this process need to be recorded by filling in a paper record book. This form of recording has the problems of backwardness, low efficiency, unclear and inaccurate recorded information, and the historical record book occupies a large storage space.

[0003] After the tag is completed and the energy source of the equipment is cut off, the energy source cut-off device must be locked and the key must be stored in a portable physical key box. All maintenance personnel involved in this project use their own locks to lock the key box and fill in personal information and time information in the key box record book to ensure their own safety. After the maintenance is completed, the maintenance personnel need to fill in the unlocking personnel information and time information and unlock the key to take the locked energy source. This bulky portable key box needs to be carried during the entire maintenance implementation process. In addition, with the improvement of the level of automated control, the construction of centralized control centers has received more and more attention from major companies. After the centralized control center is built, it is generally far away from the production site. In this way, the original process will bring about the problem of low efficiency in the process of applying to stop the energy source and tag out, which will affect the maintenance efficiency.

[0004] In summary, the existing methods of applying for energy source suspension and delisting have the following problems:

[0005] (1) All information involved in the listing and delisting process is recorded in paper form, which is inefficient, unclear and outdated.

[0006] (2) The locked key box used to store the energy source is bulky, inconvenient to carry, and outdated.

[0007] (3) After the centralized control center is built, it will be far away from the production site, which will lead to the problem of low efficiency in the process of applying to stop the energy source and delisting, thereby affecting the maintenance efficiency. Summary of the invention

[0008] The present invention provides a method for hanging and removing an electronic sign in the process of applying for energy source shutdown, so as to solve the technical problems of low efficiency, influence on maintenance efficiency and inconvenience in implementation in the prior art.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] A method for hanging and removing an electronic sign in the process of applying for energy source shutdown is used for hanging and removing signs in the process of industrial equipment maintenance. The method for hanging and removing an electronic sign includes:

[0011] A server is set up, and a client is configured for each employee in each position involved in the listing and delisting activities; each client is configured with a camera for capturing the user's facial image, all clients are connected to the server in communication, and the server is also connected to an electronic key cabinet in communication;

[0012] Set up electronic signs of different colors for each position; the number of electronic signs is the same as the number of devices that cut off the energy source, the electronic signs corresponding to employees in the same position have the same color, and the electronic signs for different positions are distinguished by different colors;

[0013] Before the start of maintenance, the maintenance personnel send a tag request message through their own client, and after obtaining the consent of all participating positions by exchanging electronic cards, cut off the energy source and lock the energy source. The server automatically controls the storage compartment in the electronic key cabinet to open and store the key for unlocking the energy source. The tag request message includes the maintenance item, the electronic card currently held by the maintenance personnel and the maintenance personnel's face image.

[0014] After the maintenance is completed, the maintenance personnel send a removal request message through their own client, obtain the consent of all participating positions by exchanging electronic cards, control the storage compartment in the electronic key cabinet to open, take out the key to unlock the energy source and unlock the energy source; among which, the removal request information includes the maintenance project, the electronic card currently held by the maintenance personnel and the facial images of all maintenance personnel involved in the maintenance.

[0015] Furthermore, the server is also connected to the equipment management system for communication; the server receives the list of maintenance items and the names of electronic signs associated with the maintenance items sent by the equipment management system, and feeds back the actual maintenance performance.

[0016] Furthermore, the server is also connected to the PLC communication of the on-site control equipment action;

[0017] When a tag-out operation is performed, the server outputs a control signal for a locking device through the PLC;

[0018] When the delisting operation is performed, the server outputs a control signal of the unlocking device through the PLC.

[0019] Furthermore, the positions involved in the listing and delisting activities include maintenance positions responsible for checking and repairing equipment, operating equipment positions responsible for controlling the operating status of equipment, and energy source positions responsible for stopping the energy required for equipment operation;

[0020] Among them, the color of the electronic sign corresponding to the maintenance post is the first preset color, the color of the electronic sign corresponding to the operating equipment post is the second preset color, and the color of the electronic sign corresponding to the energy source shutdown post is the third preset color; and the first preset color, the second preset color and the third preset color are different from each other.

[0021] Furthermore, before the maintenance begins, the maintenance personnel send a tag request message through their own client, and cut off the energy source after obtaining the consent of each participating position by exchanging electronic tags, and lock the energy source. The server automatically controls the storage compartment in the electronic key cabinet to open and store the key for unlocking the energy source, including:

[0022] Before the maintenance begins, the maintenance personnel select the maintenance item through the client of their respective positions, collect their own facial images through the camera, and send out the listing request information;

[0023] The server recognizes the facial image uploaded by the maintenance personnel. After successful recognition, the server binds the recognition result with the current maintenance project and sends it to the client at the equipment operation post to apply for stopping the energy source and hanging the electronic sign.

[0024] After the corresponding personnel at the equipment operation post obtain the application for stopping the energy source and hanging the electronic sign through the client of the corresponding post, they first stop the operation of the corresponding equipment to be repaired, and then send the equipment stop operation signal to the relevant personnel at the energy source stop post by operating the client of the corresponding post. At the same time, the server sends a signal to lock the output of the equipment to be repaired to the PLC controlling the equipment to be repaired;

[0025] After the relevant personnel at the energy source stop post obtain the equipment stop signal through the client of their respective posts, they first cut off the corresponding energy source and lock the handle, and then input the energy source cut-off information through the client of their respective posts. After the server receives the energy source cut-off information, it controls a storage compartment in the electronic key cabinet to open automatically. The relevant personnel at the energy source stop post assist the maintenance personnel to deposit the key of the energy source lock into the automatically opened storage compartment and close it manually. After the server detects that the storage compartment is closed, it automatically locks it and transmits the information that the maintenance conditions are met and the listing is over to the client of the maintenance personnel's respective posts;

[0026] After the maintenance personnel obtain the information of the end of the listing through the client at their respective positions, they carry out equipment maintenance.

[0027] Furthermore, after the maintenance is completed, the maintenance personnel send a removal request message through their own client, obtain the consent of each participating position by exchanging electronic cards, control the storage compartment in the electronic key cabinet to open, take out the key for unlocking the energy source and unlock the energy source, including:

[0028] After the maintenance is completed, the maintenance personnel enter the facial images of all maintenance personnel involved in the current maintenance project on the client computer at their respective positions and send a request for delisting;

[0029] After the relevant personnel of the energy source stopping post obtain the delisting request information through the client on their respective posts, they confirm the delisting request information, and the server unlocks the storage compartment bound to the current maintenance project. The relevant personnel of the energy source stopping post first assist the maintenance personnel in taking out the key from the unlocked electronic key cabinet storage compartment, and unlock the energy source power supply handle, and then input the energy source unlocking information of the corresponding electronic card through the client of their respective posts. The server determines whether there is any electronic listing information of other personnel at this energy source cut-off point. If there is any electronic listing information of other personnel, the server reminds them to wait. If there is no electronic listing information of other personnel, the client of the relevant personnel of the energy source stopping post displays the information that the conditions for sending the energy source are met. The relevant personnel of the energy source stopping post sends the energy source according to the prompt information, and inputs the energy source sending information through the client of their respective posts.

[0030] The relevant personnel at the equipment operating post obtain the energy source information sent by the energy source stopping post through the client at their respective posts, and then perform a confirmation operation. After the confirmation operation is completed, the server sends a signal to unlock the output of the corresponding equipment to the PLC of the control equipment involved in the current maintenance project to complete the delisting operation.

[0031] Furthermore, after the maintenance personnel sends a sign request message through their own client, the color of the electronic sign of the maintenance post changes to the first preset color and the fourth preset color, and the color of the electronic sign of the operating equipment post changes to the second preset color and the fourth preset color; wherein the fourth preset color is different from any one of the first preset color, the second preset color and the third preset color;

[0032] After the operating equipment post personnel approve the posting request submitted by the maintenance personnel, the color of the electronic sign of the operating equipment post changes to the first preset color, the color of the electronic sign of the maintenance post changes to the second preset color and the fourth preset color, and the color of the electronic sign of the energy source stop post changes to the third preset color and the fourth preset color;

[0033] After the personnel at the energy source shutdown post cut off the energy source, locked it and entered the information that the energy source has been cut off, the color of the electronic sign at the maintenance post changes to the third preset color, and the color of the electronic sign at the energy source shutdown post changes to the second preset color.

[0034] Furthermore, after the maintenance personnel sends a removal request message through their own client, the color of the electronic sign of the maintenance post changes to the third preset color and the fourth preset color, and the color of the electronic sign of the energy source stop post changes to the second preset color and the fourth preset color;

[0035] After the personnel at the energy source stopping post unlocks the energy source and enters the unlocking information according to the removal request raised by the maintenance personnel, the color of the electronic sign of the maintenance post changes to the first preset color, and the color of the electronic signs of the energy source stopping post and the operating equipment post depends on whether there is other listing information. If there is no other maintenance listing information, it will prompt that the energy source delivery conditions are met. After the energy source delivery is completed and the energy source delivery information is entered, the color of the electronic sign of the energy source stopping post changes to the third preset color, and the color of the electronic sign of the operating equipment post changes to the first preset color and the fourth preset color. After the operating equipment post confirms the energy source delivery information sent by the energy source stopping post through its own client, the color of the electronic sign of the operating equipment post changes to the second preset color;

[0036] If there is other maintenance listing information, it will prompt to wait. At this time, the color of the electronic sign of the energy source stop post changes to the second preset color, and the color of the electronic sign of the operating equipment post is the first preset red.

[0037] The beneficial effects brought about by the technical solution provided by the present invention include at least:

[0038] The method for hanging and removing electronic cards in the process of applying for energy source suspension provided by the present invention utilizes the fast transmission characteristics of the information system to realize online application for energy source suspension; utilizes face recognition technology to replace signatures; utilizes the communication function with the equipment management system to obtain maintenance projects and electronic cards associated with the projects, and automatically binds the above information with the information of the maintenance personnel involved, thereby shortening the operation process; utilizes an electronic key cabinet to manage the keys of energy source locks, and automatically binds the storage box in the electronic key cabinet with the maintenance project, electronic card, and maintenance personnel's personnel information, and after the maintenance is completed, the maintenance personnel's facial information is used to unlock the bound storage box in the electronic key cabinet. This effectively solves the problems of low hanging and removing efficiency, cumbersome paper records, and backward key storage methods. At the same time, it realizes the transition from offline to online equipment maintenance hanging and removing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1It is a schematic diagram of the execution flow of the method for hanging and removing the electronic sign in the process of applying for energy source suspension provided by an embodiment of the present invention;

[0041] Figure 2 It is a functional block diagram of the method for hanging and removing the electronic sign in the process of applying for energy source suspension provided by an embodiment of the present invention;

[0042] Figure 3 It is a flowchart of implementing the hanging operation in the method for hanging and removing the electronic sign in the process of applying for energy source suspension provided by an embodiment of the present invention;

[0043] Figure 4 It is a flow chart of implementing the delisting operation in the method for hanging and removing the electronic sign in the process of applying for energy source suspension provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] The present embodiment provides a method for hanging and removing electronic signs during the process of applying for energy source shutdown. The method constructs an electronic hanging and removing system for hanging and removing signs during the maintenance of industrial equipment. The hardware used includes a server, an electronic key cabinet, a client and a camera. The server is equipped with an electronic hanging and removing system program and a face recognition program, and the electronic key cabinet is used to store keys for unlocking energy source cut-off devices. The clients are installed at positions participating in electronic hanging and removing activities to obtain and input information related to hanging and removing signs. The camera is used to cooperate with the client to collect face data for face recognition.

[0046] Specifically, the execution process of the method in this embodiment is as follows: Figure 1 As shown, the following steps are included:

[0047] S1, building a server and configuring a client for each employee in each position involved in the listing and delisting activities; wherein each client is configured with a camera for capturing the user's face image, all clients are connected to the server in communication, and the server is also connected to an electronic key cabinet in communication;

[0048] It should be noted that, in this embodiment, the server is also connected to the equipment management system and the PLC that controls the operation of the equipment on site; the server receives the list of maintenance items and the electronic sign names associated with the maintenance items sent by the equipment management system, and feeds back the maintenance performance to the equipment management system;

[0049] When the tag-out operation is performed, the server outputs the control signal of the locking device through the corresponding PLC;

[0050] When the delisting operation is performed, the server outputs the control signal of the unlocking device through the corresponding PLC.

[0051] Among them, the system built in this embodiment is based on the BS architecture, the server is connected to the client and the electronic key cabinet through industrial Ethernet, and the camera is connected to the client through a USB interface. Of course, it is understandable that the hardware in the system constructed by this embodiment is not limited to the server, the electronic key cabinet, the client and the camera supporting the client, and other hardware devices can be added on this basis. The server can be one or two, as long as the electronic hanging and unloading process execution and face recognition function can be completed. The electronic key cabinet can be of any shape or form, as long as the purpose of being controlled and storing keys can be achieved. The way to establish a data connection between devices can also be any way, not limited to industrial Ethernet. Moreover, the equipment used to send the list of maintenance items is not limited to the equipment management system, and all systems that can send the list of maintenance items and the electronic card information associated therewith can be used. The method for locking the output of the device can be either by sending a network signal to the PLC or by outputting a control signal through a hard line.

[0052] S2, setting up electronic signs of different colors for each position; wherein the number of electronic signs is the same as the number of energy source cut-off devices, the name of the electronic sign is the same as the name of the energy source cut-off device, and the electronic signs of different positions are distinguished by different colors;

[0053] Specifically, in this embodiment, the positions involved in the hanging and unloading activities include the maintenance position responsible for repairing the equipment, the operating equipment position responsible for controlling the operating status of the equipment, and the energy source position responsible for stopping the energy required for the operation of the equipment; wherein the color of the electronic sign corresponding to the maintenance position is the first preset color, the color of the electronic sign corresponding to the operating equipment position is the second preset color, and the color of the electronic sign corresponding to the energy source stop position is the third preset color; and the first preset color, the second preset color, and the third preset color are different from each other. Further, in this embodiment, the first preset color is red, the second preset color is green, and the third preset color is yellow. Of course, it can be understood that the hanging and unloading process, the color of the electronic sign, and the position user design of the electronic hanging and unloading system of this embodiment are designed based on the hanging and unloading activities at the production site, and the color of the electronic sign is not limited to the above design, as long as it can distinguish the electronic signs of different positions.

[0054] Moreover, based on the above-mentioned electronic sign color design, this embodiment also adds a fourth preset color (blue is used in this embodiment, and it only needs to be different from the existing colors in practice) based on the existing three electronic sign colors, which is used to indicate the status when the application for hanging or removing the electronic sign has been issued but has not been approved.

[0055] S3, before the start of maintenance, the maintenance personnel send a tag request message through their own client, and cut off the energy source after obtaining the consent of all participating positions by exchanging electronic cards, lock the energy source, and the system automatically controls the storage compartment in the electronic key cabinet to open and store the key for unlocking the energy source; wherein the tag request message includes the maintenance item, the electronic card currently held by the maintenance personnel and the maintenance personnel's face image;

[0056] S4, after the maintenance is completed, the maintenance personnel sends a removal request message through their own client, obtains the consent of all participating positions by exchanging electronic cards, controls the opening of the storage compartment in the electronic key cabinet, takes out the key to unlock the energy source and unlocks the energy source; wherein, the removal request message includes the maintenance project, the electronic card currently held by the maintenance personnel and associated with the maintenance project, and the facial images of all maintenance personnel involved in the maintenance.

[0057] It should be noted that the functions achieved by the method for hanging and removing the electronic sign in the process of applying for energy source suspension provided by this embodiment are as follows: Figure 2 As shown, all participants in the electronic tag-hanging and tag-removing system use facial recognition to record the tag-hanging and tag-removing. When executing the electronic tag-hanging and tag-removing business process, the server binds the maintenance items, electronic tags, information of the maintenance personnel involved, and the corresponding storage compartments in the electronic key cabinet. When the energy source is cut off, the system will control the pre-selected electronic key cabinet storage compartment to open for key storage. When the maintenance is completed, all personnel involved in the maintenance are required to verify their personnel information on the client. After the system completes the verification, it will automatically open the previously bound electronic key cabinet storage compartment to facilitate the maintenance personnel to take out the key and unlock the energy source.

[0058] In the following, this embodiment takes the hardware components of a server, an electronic key cabinet, a maintenance position client, an operating equipment position client, an energy source position client and a camera paired with the above clients. The system manages a device as an example to illustrate the hanging and unhanging process.

[0059] like Figure 3 As shown, the process of implementing the listing operation in this embodiment is as follows:

[0060] S31, before the maintenance begins, the maintenance personnel first selects the maintenance item through the client of the corresponding position, then collects his / her own facial image through the camera and sends a listing request message;

[0061] S32, the server recognizes the facial image uploaded by the maintenance personnel, and after the recognition is passed, sends the recognition result to the electronic hanging and removing system inside the server. The electronic hanging and removing system binds the personnel identification information with the selected maintenance item and sends it to the client at the operating equipment post to apply for hanging the electronic sign to stop the energy source;

[0062] S33, after the corresponding personnel of the equipment operation post obtain the application for stopping the energy source and hanging the electronic sign through the client of the corresponding post, they first stop the operation of the corresponding equipment to be repaired, and then send the equipment stop operation signal to the relevant personnel of the energy source stop post by operating the client of the corresponding post. At the same time, the system sends a signal to lock the output of the equipment to be repaired to the PLC controlling the equipment to be repaired;

[0063] S34, after the personnel at the energy source stop post obtain the equipment stop signal through the client of their position, they first cut off the corresponding energy source and lock the handle, and then input the energy source cut-off information through the client of their position. After the electronic tag-off system receives the energy source cut-off information, it controls a storage compartment in the electronic key cabinet to open automatically. The personnel at the energy source stop post assist the maintenance personnel to deposit the key for locking the energy source into the opened storage compartment and close it manually. After the electronic tag-off system detects that the storage compartment is closed, it automatically locks it and transmits the information that the maintenance conditions are met and the tag-off is completed to the client of the maintenance personnel's position;

[0064] S35, the maintenance personnel obtain the information of the end of the listing through the client of the corresponding position and then carry out equipment maintenance.

[0065] like Figure 4 As shown, the process of implementing the delisting operation in this embodiment is as follows:

[0066] S41, after the maintenance is completed, the maintenance personnel enter the facial images of all maintenance personnel involved in the current maintenance project on the client computer at their respective positions, and issue a removal request message;

[0067] S42, after the relevant personnel of the energy source stopping post obtain the delisting request information through the client on their respective posts, they confirm the delisting request information, and the system unlocks the storage compartment bound to the current maintenance project. The relevant personnel of the energy source stopping post first assist the maintenance personnel in taking out the key from the unlocked electronic key cabinet storage compartment, and unlock the energy source power supply handle. Secondly, the energy source unlocking information corresponding to the electronic card is input into the system through the client of their respective posts. The system determines whether there is any electronic signboard information of other personnel at this energy source cut-off point. If there is any electronic signboard information of other personnel, the system reminds them to wait. If there is no electronic signboard information of other personnel, the client of the personnel of the energy source stopping post displays the information that the conditions for delivering the energy source are met. The personnel of the energy source stopping post deliver the energy source according to the prompt information, and input the power supply information into the system through the client of their respective posts.

[0068] S43, after the relevant personnel of the equipment operating post obtain the energy source information sent by the energy source stopping post through the client at their respective posts, they perform a confirmation operation. After the confirmation operation is completed, the electronic hanging and removing system sends a signal output by the unlocking device to the PLC of the control equipment involved in the current maintenance project to complete the removal operation.

[0069] Furthermore, during the hanging and unhanging operation, the colors of the electronic cards of each position are exchanged online according to the following process:

[0070] 1. When the maintenance personnel send a request for listing through their own client, they apply online to exchange the red electronic card of the post with the green electronic card of the operating equipment post. After the application is sent, the color of the electronic card of the maintenance post will change to red and blue, and the color of the electronic card of the operating equipment post will change to green and blue;

[0071] 2. After the operator approves the maintenance personnel's request for a sign, the color of the electronic sign at the operator changes to red, the color of the electronic sign at the maintenance station changes to green and blue, and the color of the electronic sign at the energy source stop station changes to yellow and blue;

[0072] 3. After the personnel at the energy source stop post cut off the energy source, locked it and entered the information that the energy source has been cut off, the color of the electronic sign at the maintenance post turns yellow, and the color of the electronic sign at the energy source stop post turns green;

[0073] 4. When the maintenance personnel send a request for delisting through their own client, they apply online to exchange the yellow electronic sign of the post with the green electronic sign of the energy source stop post. After the application is sent, the color of the electronic sign of the maintenance post will change to yellow and blue, and the color of the electronic sign of the energy source stop post will change to green and blue;

[0074] 5. After the personnel at the energy source stop post unlocks the energy source and enters the unlocking information according to the removal request raised by the maintenance personnel, the color of the electronic sign at the maintenance post turns red, and the color of the electronic signs at the energy source stop post and the operating equipment post depends on whether there is other listing information. If there is no other maintenance listing information, it will prompt that the conditions for sending the energy source are met. After the energy source is sent and the energy source sending information is entered, the color of the electronic sign at the energy source stop post turns yellow, and the color of the electronic sign at the operating equipment post turns red and blue. After the operating equipment post confirms the energy source sending information sent by the energy source stop post through its own client, the color of the electronic sign at the operating equipment post turns green; if there is other maintenance listing information, the system prompts to wait, at which time the color of the electronic sign at the energy source stop post turns green, and the color of the electronic sign at the operating equipment post is red.

[0075] In summary, the method of this embodiment establishes an information system based on the process of applying for the suspension of energy source cards before and after maintenance at the production site, and cooperates with face recognition technology and electronic key cabinets to realize online hanging and removing cards, replaces signatures with face recognition, and realizes the function of intelligent storage of unlocking energy source keys through key cabinets. Electronic energy source cards are used instead of conventional physical energy source cards, thereby realizing online hanging and removing cards. The method of this embodiment can effectively improve the efficiency of hanging and removing cards, paper registration problems, and safe storage of energy source suspension keys. The core part of hanging and removing cards can be transferred from offline to online.

[0076] In addition, it should be noted that the present invention can be provided as a method, an apparatus or a computer program product. Therefore, the embodiments of the present invention can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program code.

[0077] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0078] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable terminal device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0079] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0080] Finally, it should be noted that the above is a preferred embodiment of the present invention. It should be pointed out that although the preferred embodiment of the present invention has been described, for those skilled in the art, once the basic creative concept of the present invention is known, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. Therefore, the attached claims are intended to be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the embodiments of the present invention.

Claims

1. A method for hanging and removing electronic signs in the process of applying for energy source shutdown, which is used for hanging and removing signs in the process of industrial equipment maintenance, characterized in that: The method for hanging and removing the electronic sign comprises: A server is set up, and a client is configured for each employee in each position involved in the listing and delisting activities; each client is configured with a camera for capturing the user's facial image, all clients are connected to the server in communication, and the server is also connected to an electronic key cabinet in communication; Set up electronic signs of different colors for each position; the number of electronic signs is the same as the number of devices that cut off the energy source, the electronic signs corresponding to employees in the same position have the same color, and the electronic signs for different positions are distinguished by different colors; Before the start of maintenance, the maintenance personnel send a tag request message through their own client, and after obtaining the consent of all participating positions by exchanging electronic cards, cut off the energy source and lock the energy source. The server automatically controls the storage compartment in the electronic key cabinet to open and store the key for unlocking the energy source. The tag request message includes the maintenance item, the electronic card currently held by the maintenance personnel and the maintenance personnel's face image. After the maintenance is completed, the maintenance personnel send a removal request message through their own client, and after obtaining the consent of all participating positions by exchanging electronic cards, they control the storage compartment in the electronic key cabinet to open, take out the key to unlock the energy source and unlock the energy source; the removal request message includes the maintenance project, the electronic card currently held by the maintenance personnel and the facial images of all maintenance personnel involved in the maintenance; Before the maintenance begins, the maintenance personnel send a tag request message through their own client, and cut off the energy source after obtaining the consent of all participating positions by exchanging electronic tags, and lock the energy source. The server automatically controls the storage compartment in the electronic key cabinet to open and store the key to unlock the energy source, including: Before the maintenance begins, the maintenance personnel select the maintenance item through the client of their respective positions, collect their own facial images through the camera, and send out the listing request information; The server recognizes the facial image uploaded by the maintenance personnel. After successful recognition, the server binds the recognition result with the current maintenance project and sends it to the client at the equipment operation post to apply for stopping the energy source and hanging the electronic sign. After the corresponding personnel at the equipment operation post obtain the application for stopping the energy source and hanging the electronic sign through the client of the corresponding post, they first stop the operation of the corresponding equipment to be repaired, and then send the equipment stop operation signal to the relevant personnel at the energy source stop post by operating the client of the corresponding post. At the same time, the server sends a signal to lock the output of the equipment to be repaired to the PLC controlling the equipment to be repaired; After the relevant personnel at the energy source stop post obtain the equipment stop signal through the client of their respective posts, they first cut off the corresponding energy source and lock the handle, and then input the energy source cut-off information through the client of their respective posts. After the server receives the energy source cut-off information, it controls a storage compartment in the electronic key cabinet to open automatically. The relevant personnel at the energy source stop post assist the maintenance personnel to deposit the key of the energy source lock into the automatically opened storage compartment and close it manually. After the server detects that the storage compartment is closed, it automatically locks it and transmits the information that the maintenance conditions are met and the listing is over to the client of the maintenance personnel's respective posts; After the maintenance personnel obtain the information of the end of the listing through the client of their respective positions, they can carry out equipment maintenance; After the maintenance is completed, the maintenance personnel send a removal request message through their own client, obtain the consent of all participating positions by exchanging electronic cards, control the storage compartment in the electronic key cabinet to open, take out the key to unlock the energy source and unlock the energy source, including: After the maintenance is completed, the maintenance personnel enter the facial images of all maintenance personnel involved in the current maintenance project on the client computer at their respective positions and send a request for delisting; After the relevant personnel of the energy source stopping post obtain the delisting request information through the client on their respective posts, they confirm the delisting request information, and the server unlocks the storage compartment bound to the current maintenance project. The relevant personnel of the energy source stopping post first assist the maintenance personnel in taking out the key from the unlocked electronic key cabinet storage compartment, and unlock the energy source power supply handle, and then input the energy source unlocking information of the corresponding electronic card through the client of their respective posts. The server determines whether there is any electronic listing information of other personnel at this energy source cut-off point. If there is any electronic listing information of other personnel, the server reminds them to wait. If there is no electronic listing information of other personnel, the client of the relevant personnel of the energy source stopping post displays the information that the conditions for sending the energy source are met. The relevant personnel of the energy source stopping post sends the energy source according to the prompt information, and inputs the energy source sending information through the client of their respective posts. After the relevant personnel of the equipment operation post obtain the energy source information sent by the energy source stop post through the client at their respective posts, they perform confirmation operations. After the confirmation operation is completed, the server sends a signal to unlock the output of the corresponding equipment to the PLC of the control equipment involved in the current maintenance project to complete the delisting operation; After the maintenance personnel sends a sign request message through their own client, the color of the electronic sign of the maintenance post changes to the first preset color and the fourth preset color, and the color of the electronic sign of the operating equipment post changes to the second preset color and the fourth preset color; wherein the fourth preset color is different from any one of the first preset color, the second preset color and the third preset color; After the operating equipment post personnel approve the posting request submitted by the maintenance personnel, the color of the electronic sign of the operating equipment post changes to the first preset color, the color of the electronic sign of the maintenance post changes to the second preset color and the fourth preset color, and the color of the electronic sign of the energy source stop post changes to the third preset color and the fourth preset color; After the personnel at the energy source shutdown post cut off the energy source, locked it and entered the information that the energy source has been cut off, the color of the electronic sign at the maintenance post changes to the third preset color, and the color of the electronic sign at the energy source shutdown post changes to the second preset color.

2. The method for hanging and removing the electronic sign in the process of applying for energy source suspension according to claim 1, characterized in that: The server is also connected to the equipment management system for communication; the server receives the list of maintenance items and the electronic plate names associated with the maintenance items sent by the equipment management system, and feeds back the actual maintenance performance.

3. The method for hanging and removing the electronic sign in the process of applying for energy source suspension according to claim 1, characterized in that: The server is also connected to the PLC for controlling the operation of the equipment on site; When a tag-out operation is performed, the server outputs a control signal for a locking device through the PLC; When the delisting operation is performed, the server outputs a control signal of the unlocking device through the PLC.

4. The method for hanging and removing the electronic sign in the process of applying for energy source suspension as claimed in claim 3, characterized in that: The positions involved in the listing and delisting activities include maintenance positions responsible for checking and repairing equipment, operating equipment positions responsible for controlling the operating status of equipment, and energy source positions responsible for stopping the energy required for equipment operation; Among them, the color of the electronic sign corresponding to the maintenance post is the first preset color, the color of the electronic sign corresponding to the operating equipment post is the second preset color, and the color of the electronic sign corresponding to the energy source shutdown post is the third preset color; and the first preset color, the second preset color and the third preset color are different from each other.

5. The method for hanging and removing the electronic sign in the process of applying for energy source suspension according to claim 1, characterized in that: After the maintenance personnel sends a removal request message through their own client, the color of the electronic sign of the maintenance post changes to the third preset color and the fourth preset color, and the color of the electronic sign of the energy source stop post changes to the second preset color and the fourth preset color; After the personnel at the energy source stopping post unlocks the energy source and enters the unlocking information according to the removal request raised by the maintenance personnel, the color of the electronic sign of the maintenance post changes to the first preset color, and the color of the electronic signs of the energy source stopping post and the operating equipment post depends on whether there is other listing information. If there is no other maintenance listing information, it will prompt that the energy source delivery conditions are met. After the energy source delivery is completed and the energy source delivery information is entered, the color of the electronic sign of the energy source stopping post changes to the third preset color, and the color of the electronic sign of the operating equipment post changes to the first preset color and the fourth preset color. After the operating equipment post confirms the energy source delivery information sent by the energy source stopping post through its own client, the color of the electronic sign of the operating equipment post changes to the second preset color; If there is other maintenance listing information, it will prompt to wait. At this time, the color of the electronic sign of the energy source stop post changes to the second preset color, and the color of the electronic sign of the operating equipment post is the first preset red.

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