Overhaul method of valve control system protection device and valve control protection system

Abstract

The invention relates to a maintenance method of a valve control system protection device and a valve control protection system. According to the method, under the condition that a fault signal sent by a fault device in the valve control system protection device is received, an overhaul command is sent to the valve control system protection device, an overhaul request reported by the valve control system protection device based on the overhaul command is received, and then the fault device is overhauled according to the overhaul request. According to the maintenance method, when the operation and maintenance equipment receives the fault signal sent by the fault device, the fault device can be immediately processed, other devices which do not have faults in the valve control system protection device are not limited to various maintenance scenes and still keep normal operation, the online maintenance method for remote control when the fault occurs is achieved, and the maintenance efficiency is improved. The operation stability of the valve control protection system where the valve control system protection device is located is improved to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a maintenance method for a valve control system protection device and a valve control protection system. Background Art

[0002] The new high-voltage direct-mounted energy storage technology integrates the VSC (voltage source converter) valve with the DC energy storage valve. It has the advantages of high modularity, good economic benefits, and high operational reliability. It is widely used in various power technology fields.

[0003] In the traditional technology, in order to improve the reliable operation of the new high-pressure direct-mounted energy storage valve control system, redundant configuration of protection equipment is carried out for the new high-pressure direct-mounted energy storage valve control system. Specifically, a redundant three-out-of-two device and a valve protection device are set in the new high-pressure direct-mounted energy storage valve control system to protect the valve device or equipment and ensure that the valve device or equipment can operate normally.

[0004] However, the above-mentioned new high-pressure direct-mounted energy storage valve control system still has the problem of low reliability. Summary of the invention

[0005] Based on this, it is necessary to provide a maintenance method and a valve control protection system for a valve control system protection device that can improve the operating stability of a new high-pressure direct-mounted energy storage valve control system in response to the above-mentioned technical problems.

[0006] In a first aspect, the present application provides a method for repairing a valve control system protection device. The method comprises:

[0007] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0008] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0009] Perform maintenance on the faulty device according to the maintenance request.

[0010] The maintenance method described in the embodiment of the present application sends a maintenance command to the valve control system protection device when receiving a fault signal sent by the fault device in the valve control system protection device, and receives a maintenance request reported by the valve control system protection device based on the maintenance command, and then performs maintenance processing on the fault device according to the maintenance request. The maintenance method realizes that when the operation and maintenance equipment receives the fault signal sent by the fault device, the fault device can be processed immediately, and other devices in the valve control system protection device that have not failed can still maintain normal operation without being limited to various maintenance scenarios, realizing an online maintenance method of remote control when a fault occurs, and improving the stability of the operation of the valve control protection system where the valve control system protection device is located to a certain extent.

[0011] In one embodiment, the method further comprises:

[0012] When a maintenance completion message is received from the faulty device, a verification command is sent; the verification command is used to indicate that the maintenance of the faulty device is successfully verified.

[0013] The embodiment of the present application realizes the verification of the maintenance treatment effect of the valve protection device after the maintenance treatment is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor maintenance treatment effect.

[0014] In one embodiment, the fault device is a valve protection device, and sending a verification command includes:

[0015] A first verification command is sent to the spare three-out-of-two device in the valve control system protection device; the first verification command is used to instruct the spare three-out-of-two device to switch to a maintenance state, and to verify the successful maintenance of the faulty valve protection device in the valve control system protection device.

[0016] In the embodiment of the present application, the operation and maintenance equipment can verify the faulty valve protection device by instructing the backup three-out-of-two device in the valve control system protection device, thereby realizing automatic verification of the valve protection device after maintenance is completed. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0017] In one embodiment, the method further comprises:

[0018] Upon receiving a verification pass message sent by the faulty valve protection device through the backup three-out-of-two device, an exit command is sent to the valve control system protection device; the exit command is used to instruct the backup three-out-of-two device and the faulty valve protection device to switch to a non-maintenance state.

[0019] The method described in the embodiment of the present application, after the faulty valve protection device passes the verification, by issuing an exit command, the restored valve protection device and the spare three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state in turn, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0020] In one embodiment, sending the maintenance command includes:

[0021] The maintenance command is sent to the faulty valve protection device through the main three-out-of-two device in the valve control system protection device; the maintenance command is used to instruct the faulty valve protection device to switch to the maintenance state.

[0022] In the embodiment of the present application, a maintenance command is issued to the faulty valve protection device through the main three-out-of-two device to instruct the valve protection device to enter a maintenance state. Since the main three-out-of-two device is a device with a low fault level, the maintenance command can be issued accurately and efficiently through the main three-out-of-two device, thereby improving the maintenance efficiency of the faulty device to a certain extent.

[0023] In one embodiment, the faulty device is a two-out-of-three device, and sending a verification command includes:

[0024] A second verification command is sent to the valve control system protection device; the second verification command is used to indicate a successful maintenance verification of the three-out-of-two device that has a fault in the valve control system protection device.

[0025] In an embodiment of the present application, the operation and maintenance equipment can instruct the valve control system protection device to verify the faulty three-out-of-two device therein, thereby realizing automatic verification of the three-out-of-two device after maintenance is completed. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0026] In one embodiment, the method further comprises:

[0027] Upon receiving a verification pass message sent by a faulty three-out-of-two device in the valve control system protection device, an exit command is sent; the exit command is used to instruct the faulty three-out-of-two device to switch to a non-maintenance state.

[0028] The method described in the embodiment of the present application, after the faulty three-out-of-two device passes the verification, issues an exit command to switch the restored three-out-of-two device from the maintenance state to the non-maintenance state, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and to a certain extent improving the stability of the operation of the entire valve control and protection system.

[0029] In a second aspect, the present application provides a method for repairing a valve control system protection device. The method comprises:

[0030] Sending fault signals to the operation and maintenance equipment, and receiving maintenance commands issued by the operation and maintenance equipment;

[0031] Controlling the faulty device in the valve control system protection device to switch to a maintenance state according to the maintenance command;

[0032] Sending a maintenance request to the operation and maintenance equipment; the maintenance request is used to instruct maintenance processing to be performed on the faulty device.

[0033] The maintenance method described in the embodiment of the present application realizes that after the faulty device actively sends a fault signal and a corresponding maintenance request to the operation and maintenance equipment, the faulty device can be immediately requested to be processed, and other non-faulty devices in the valve control system protection device are not limited to various maintenance scenarios and still maintain normal operation, thereby realizing an online maintenance method of remote control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0034] In one embodiment, sending a maintenance request to the operation and maintenance equipment includes:

[0035] The valve protection device in the valve control system protection device that has a fault sends a first message to the three-out-of-two device in the valve control system protection device; the first message includes a maintenance mark indicating a maintenance status;

[0036] When the working state indicated by the first message is inconsistent with its own working state, the two-out-of-three device generates the maintenance request and sends the maintenance request to the operation and maintenance equipment.

[0037] The valve control system protection device described in the embodiment of the present application can detect the faulty valve protection device through the maintenance mark of the three-out-of-two device, thereby reporting an alarm for maintenance inconsistency, thereby instructing the operation and maintenance equipment to perform maintenance on the faulty valve protection device, realizing automatic detection and processing of maintenance, and improving maintenance efficiency.

[0038] In one embodiment, the method further comprises:

[0039] After the faulty device is repaired, a repair completion message is generated, and the repair completion message is sent to the operation and maintenance equipment;

[0040] Receiving a verification command issued by the operation and maintenance equipment according to the maintenance completion message;

[0041] The faulty device is verified to be successfully repaired according to the verification command.

[0042] The embodiment of the present application realizes the verification of the maintenance treatment effect of the valve protection device after the maintenance treatment is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor maintenance treatment effect.

[0043] In one embodiment, generating a maintenance completion message after the faulty device is repaired, and sending the maintenance completion message to the operation and maintenance device includes:

[0044] After the valve protection device with a fault in the valve control system protection device is repaired, the repair completion message is generated, and the repair completion message is sent to the operation and maintenance equipment through the three-out-of-two device in the valve control system protection device;

[0045] The receiving a verification command issued by the operation and maintenance device according to the maintenance completion message includes:

[0046] The spare three-out-of-two device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful maintenance verification of the faulty valve protection device.

[0047] After the faulty valve protection device in the embodiment of the present application completes the maintenance, it can report the maintenance completion message through any three-out-of-two device, and immediately enter the verification process according to the instructions of the operation and maintenance equipment, thereby completing the fully automatic operation from maintenance to verification, which can improve the maintenance efficiency and the intelligence of the entire valve control system protection device to a certain extent.

[0048] In one embodiment, after the faulty valve protection device sends the maintenance completion message to the operation and maintenance equipment, the method further includes:

[0049] The faulty valve protection device sends a second message to the three-out-of-two device;

[0050] When the working state indicated by the second message is consistent with the working state of the two-out-of-three device, the two-out-of-three device verifies the faulty valve protection device according to the second message.

[0051] The embodiment of the present application verifies the valve protection device that has been repaired through a three-out-of-two device, and automatic verification can be achieved by parsing the second message reported by the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0052] In one embodiment, the verifying the faulty valve protection device according to the second message includes:

[0053] Parsing the second message to obtain a first parsing result;

[0054] If the first analysis result indicates that the faulty valve protection device operates normally, determining that the faulty valve protection device passes the verification;

[0055] If the first analysis result indicates that the faulty valve protection device is not operating normally, it is determined that the faulty valve protection device has failed verification.

[0056] The valve control system protection device in the embodiment of the present application can verify the valve protection device by parsing the second message reported by the valve protection device after maintenance. The verification process can be executed by the three-out-of-two device in the valve control system protection device, which further improves the verification efficiency of the valve control system protection device and thus improves the stability of the operation of the valve control protection system where the entire valve control system protection device is located.

[0057] In one embodiment, the method further comprises:

[0058] After the faulty valve protection device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance device through a two-out-of-three device in the valve control system protection device;

[0059] The spare three-out-of-two device in the valve control system protection device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to a non-maintenance state, and issues the exit command to the valve protection device that has a fault;

[0060] The faulty valve protection device is switched to a non-maintenance state according to the exit command.

[0061] After the faulty valve protection device in the device described in this embodiment passes the verification, the corresponding restored valve protection device and the spare three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state in succession, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0062] In one embodiment, generating a maintenance completion message after the faulty device is repaired, and sending the maintenance completion message to the operation and maintenance device includes:

[0063] After the maintenance of the three-out-of-two device that has failed in the valve control system protection device is completed, a maintenance completion message is generated, and the maintenance completion message is sent to the operation and maintenance equipment;

[0064] The receiving a verification command issued by the operation and maintenance device according to the maintenance completion message includes:

[0065] The valve protection device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful maintenance verification of the faulty three-out-of-two device.

[0066] After the maintenance of the three-out-of-two device that has failed in the embodiment of the present application is completed, it can be verified by any valve control device connected to it, and the verification process can be immediately entered according to the instructions of the operation and maintenance equipment, thereby completing the fully automatic operation from maintenance to verification, which can improve the maintenance efficiency and the intelligence of the entire valve control system protection device to a certain extent.

[0067] In one embodiment, after the failed three-out-of-two device sends the maintenance completion message to the operation and maintenance equipment, the method further includes:

[0068] The failed three-out-of-two device sends a third message to the valve protection device;

[0069] When the working state indicated by the third message is consistent with the valve protection device's own working state, the valve protection device verifies the failed three-out-of-two device according to the third message.

[0070] The embodiment of the present application verifies the three-out-of-two device that has completed maintenance through the valve protection device, and automatic verification can be achieved by parsing the third message sent from the three-out-of-two device to the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0071] In one embodiment, the verifying the failed three-out-of-two device according to the third message includes:

[0072] Parsing the third message to obtain a second parsing result;

[0073] If the second analysis result indicates that the faulty three-out-of-two device operates normally, it is determined that the faulty three-out-of-two device has passed the verification; if the second analysis result indicates that the faulty three-out-of-two device operates abnormally, it is determined that the faulty three-out-of-two device has not passed the verification.

[0074] The valve control system protection device in the embodiment of the present application can verify the three-out-of-two device by parsing the third message reported by the three-out-of-two device that has completed maintenance. The verification process can be executed by the valve protection device in the valve control system protection device, which further improves the verification efficiency of the valve control system protection device, and then improves the stability of the operation of the valve control protection system where the entire valve control system protection device is located.

[0075] In one embodiment, the method further comprises:

[0076] After the failed two-out-of-three device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance device;

[0077] The failed three-out-of-two device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to a non-maintenance state, and sends the exit command to the valve protection device in the valve control system protection device that is in the maintenance state;

[0078] The valve protection device is switched to a non-maintenance state according to the exit instruction.

[0079] After the faulty three-out-of-two device in the device described in this embodiment is verified, the corresponding restored three-out-of-two device and the valve protection device used for verification are switched from the maintenance state to the non-maintenance state successively, realizing the seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0080] In a third aspect, the present application provides a valve control protection system, the valve control protection system comprising: a valve control system protection device and an operation and maintenance device, the valve control system protection device comprising a three-out-of-two device and a valve protection device; the three-out-of-two device and the valve protection device are communicatively connected, and the three-out-of-two device and the operation and maintenance device are communicatively connected;

[0081] The operation and maintenance equipment is used to perform the maintenance method as described in the first aspect;

[0082] The valve control system protection device is used to execute the maintenance method described in the second aspect.

[0083] The valve-controlled protection system described in the embodiment of the present application supports remote maintenance in the case of online operation, which is not limited to the scenarios of problem finding, positioning, problem solving, program upgrading, on-site recovery operation test, etc. during maintenance.

[0084] In one of the embodiments, the valve-controlled protection system further includes: valve control equipment, recording equipment and monitoring equipment, the three-out-of-two device is connected to the valve control equipment and the recording equipment respectively, and the three-out-of-two device is also connected to the monitoring equipment and the operation and maintenance equipment through a network; the valve control equipment is connected to the monitoring equipment and the operation and maintenance equipment through the network.

[0085] In a fourth aspect, the present application also provides a maintenance device. The device comprises:

[0086] A sending module, configured to send a maintenance command to the valve control system protection device upon receiving a fault signal sent by a fault device in the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0087] A receiving module, used for receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0088] A maintenance module is used to perform maintenance on the faulty device according to the maintenance request.

[0089] In a fifth aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0090] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0091] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0092] Perform maintenance on the faulty device according to the maintenance request.

[0093] In a sixth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0094] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0095] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0096] Perform maintenance on the faulty device according to the maintenance request.

[0097] In a seventh aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0098] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0099] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0100] Perform maintenance on the faulty device according to the maintenance request.

[0101] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0103] Figure 1 A schematic diagram of the structure of a valve-controlled protection system in one embodiment;

[0104] Figure 2 A schematic flow chart of a method for repairing a valve control system protection device in one embodiment;

[0105] Figure 2A A schematic diagram of the structure of a valve control system protection device in one embodiment;

[0106] Figure 2B A schematic diagram of a process of switching between two-out-of-three device modes in an embodiment;

[0107] Figure 3 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0108] Figure 4 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0109] Figure 5 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0110] Figure 6 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0111] Figure 7 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0112] Figure 8 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0113] Fig. 9 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0114] Fig.10 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0115] Fig.11 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0116] Fig.12 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0117] Fig.13 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0118] Fig.14 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0119] Fig.15 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0120] Fig.16 A schematic flow chart of a maintenance method of a valve control system protection device in another embodiment;

[0121] Fig.17 A schematic diagram of the structure of a valve-controlled protection system in one embodiment;

[0122] Fig.18 It is a structural schematic diagram of a valve-controlled protection system in another embodiment;

[0123] Fig.19 A schematic diagram of the structure of a maintenance device in one embodiment;

[0124] Fig. 20 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0125] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0126] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0127] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0128] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0129] At present, the new high-voltage direct-mounted energy storage technology integrates the VSC (voltage source converter) converter valve with the DC energy storage valve, which has the advantages of high modularity, good economic benefits, and high operational reliability. Based on the current flexible direct-mounted ultra-high voltage technical specifications, the energy storage valve system architecture is divided into three layers: operator control layer, control protection layer, and field layer. For the energy storage valve control and protection system architecture, it can be further divided into five levels: operation monitoring layer, control and protection equipment layer, submodule control layer, electric cabinet control layer, and electric box control layer. The new high-voltage direct-mounted energy storage valve control system is in the control and protection equipment layer of the system architecture. According to the requirements of the "Zhangbei ±35kV DC Energy Storage Project Flexible Direct-mounted Energy Storage Device Technical Specifications", "the new high-voltage direct-mounted energy storage valve control system should be fully redundant. For other boards except the trigger board and the optical receiving board, the fault handling should be performed without stopping the IGBT valve", that is, the new high-voltage direct-mounted energy storage valve control system supports online maintenance fault handling functions when it is in normal online operation. However, when a valve protection device or a three-out-of-two device in a new high-pressure direct-hung energy storage valve control system fails or is abnormal, it is necessary to perform online maintenance on the valve protection device and the three-out-of-two device to support the normal operation of the system. Therefore, how to provide a reliable online maintenance valve protection device to ensure the reliable and safe operation of the new high-pressure direct-hung energy storage valve control system has become a technical problem that needs to be solved urgently. In response to this problem, this proposal provides a maintenance method and a valve control protection system for a valve control system protection device used in a new high-pressure direct-hung energy storage valve control system. The following embodiments will specifically illustrate the maintenance method and the valve control protection system.

[0130] The maintenance method of the valve control system protection device provided in the embodiment of the present application can be applied to Figure 1 In the valve control protection system shown. The operation and maintenance device 102 communicates with the valve control system protection device 104 through the network. The operation and maintenance device 102 is used to repair the faulty device in the valve control system protection device 104. The operation and maintenance device 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, workstations, work platforms, and servers. If the operation and maintenance device 102 is a server, the server can be implemented as an independent server or a server cluster composed of multiple servers.

[0131] Those skilled in the art will understand that Figure 1 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present application, and does not constitute a limitation on the valve-controlled protection system to which the scheme of the present application is applied. The specific valve-controlled protection system may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0132] In one embodiment, Figure 2As shown, a maintenance method for a valve control system protection device is provided, and the method is applied to Figure 1 The operation and maintenance equipment in the example is used as an example to illustrate, including the following steps:

[0133] S201, when receiving a fault signal sent by a fault device in a valve control system protection device, sending a maintenance command to the valve control system protection device.

[0134] The maintenance command is used to instruct the faulty device to switch to the maintenance state.

[0135] The valve control system protection device can be applied to a new type of high-pressure direct-hung energy storage valve control system (hereinafter referred to as a valve control protection system) to protect the valve control equipment in the new type of high-pressure direct-hung energy storage valve control system. In this scenario, each valve protection device can be connected to a measuring device in the new type of high-pressure direct-hung energy storage valve control system to receive the measurement data of the measuring device, and each three-out-of-two device can be connected to the valve control device in the new type of high-pressure direct-hung energy storage valve control system to receive protection data, messages, information, requests, etc. related to the valve control device or itself reported by each valve protection device.

[0136] Optionally, the valve control system protection device (see Figure 2A The structural schematic diagram shown in the figure may include at least two three-out-of-two devices, corresponding to at least three valve protection devices, and each valve protection device is connected to each three-out-of-two device, and each three-out-of-two device is connected to each valve protection device, that is, each valve protection device is cross-redundantly connected to each three-out-of-two device for data information exchange. Each three-out-of-two device is connected to each other for data information exchange. The fault device can be a valve protection device or a three-out-of-two device in the valve control system protection device.

[0137] The above fault signal may be generated when any valve protection device in the valve control system protection device fails, or may be generated when any two-out-of-three device fails.

[0138] In the embodiment of the present application, when any device in the valve control system protection device fails or is abnormal, the device can trigger the generation of a corresponding fault signal, and upload the fault signal to the operation and maintenance equipment to notify the operation and maintenance equipment that a faulty device has appeared in the valve control system protection device. When the operation and maintenance equipment receives the fault signal, it can further determine the faulty device based on the fault signal, and then send a maintenance command to the valve control system protection device. After receiving the maintenance command, the valve control system protection device immediately issues the maintenance command to the faulty device therein to instruct the faulty device to switch its own working state from a non-maintenance state to a maintenance state, while the remaining non-faulty devices still maintain a normal working state, so that the faulty device immediately enters the online maintenance process without affecting the normal operation of other devices. It should be noted that when the faulty device triggers the generation of a fault signal, it can be triggered by the maintenance pressure plate connected to each faulty device, or it can be automatically triggered by the internal detection program when a fault occurs.

[0139] S202, receiving a maintenance request reported by the valve control system protection device based on the maintenance command.

[0140] The maintenance request is used to instruct the operation and maintenance equipment to repair the faulty device in the valve control system protection device.

[0141] In an embodiment of the present application, when the operation and maintenance equipment issues a maintenance command to the faulty device in the valve control system protection device based on the above steps, the faulty device is in a maintenance state, indicating that it is now ready for maintenance. Therefore, the valve control system protection device sends a maintenance request to the operation and maintenance equipment to request maintenance.

[0142] S203: Perform maintenance on the faulty device according to the maintenance request.

[0143] In an embodiment of the present application, when the operation and maintenance equipment receives a maintenance request, it can directly establish a connection with the faulty device in the valve control system protection device to perform operations on the faulty device, including but not limited to program upgrades, report log retrieval, variable viewing, problem tracing and location, to achieve maintenance processing such as fault location, fault search, fault cause analysis, and fault resolution; optionally, the operation and maintenance equipment can also notify maintenance personnel to perform maintenance processing such as replacing the faulty device or replacing the board in the faulty device.

[0144] The maintenance method described in the embodiment of the present application sends a maintenance command to the valve control system protection device when receiving a fault signal sent by the fault device in the valve control system protection device, and receives a maintenance request reported by the valve control system protection device based on the maintenance command, and then performs maintenance processing on the fault device according to the maintenance request. The maintenance method realizes that when the operation and maintenance equipment receives the fault signal sent by the fault device, the fault device can be processed immediately, and other devices in the valve control system protection device that have not failed can still maintain normal operation without being limited to various maintenance scenarios, realizing an online maintenance method of remote control when a fault occurs, and improving the stability of the operation of the valve control protection system where the valve control system protection device is located to a certain extent.

[0145] In one embodiment, after the repair of the faulty device in the valve control system protection device is completed, in order to verify the repair effect, the verification effect can be further verified, so a verification method is also provided, that is, Figure 2 The maintenance method described, such as Figure 3 As shown, it also includes:

[0146] S204, upon receiving a maintenance completion message sent by the faulty device, sending a verification command; the verification command is used to indicate that the maintenance of the faulty device is successfully verified.

[0147] In the embodiment of the present application, when the faulty device in the maintenance state is repaired, the device can trigger the generation of a corresponding maintenance completion message, and upload the maintenance completion message to the operation and maintenance equipment to notify the operation and maintenance equipment that the valve control system protection device has been repaired. When the operation and maintenance equipment receives the maintenance completion message, it can enter the verification process, that is, send a verification command to the valve control system protection device to notify the valve control system protection device to immediately issue the verification command to the faulty device therein after receiving the verification command, so that the faulty device immediately enters the online verification process without affecting the normal operation of other devices.

[0148] The embodiment of the present application realizes the verification of the maintenance treatment effect of the valve protection device after the maintenance treatment is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor maintenance treatment effect.

[0149] The above-mentioned fault device can be a valve protection device or a three-out-of-two device in a valve control system protection device, and different fault devices correspond to different maintenance methods. The following embodiments will respectively illustrate the corresponding maintenance methods based on different scenarios.

[0150] The first scenario is: when the fault device is a valve protection device, a specific implementation method of S204 is provided, that is, when the operation and maintenance equipment specifically executes the step of "sending a verification command" in S204, the specific execution steps are:

[0151] A first verification command is sent to a spare three-out-of-two device in the valve control system protection device; the first verification command is used to instruct the spare three-out-of-two device to switch to a maintenance state, and to verify the successful maintenance of the faulty valve protection device in the valve control system protection device.

[0152] It should be noted that optical fiber high-speed communication is established between the three-out-of-two devices in the valve control system protection device. The three-out-of-two devices in the valve control system protection device are divided into a main three-out-of-two device and a backup three-out-of-two device. When the above valve control system protection device is started, each of the three-out-of-two devices is in automatic switching mode, that is, each three-out-of-two device belongs to the main mode or the backup mode. Each three-out-of-two device can be determined according to its current fault level, where the fault level is divided into normal, slight and severe levels from low to high. The main three-out-of-two device corresponds to a low fault level, and the backup three-out-of-two device corresponds to a high fault level. That is to say, when each three-out-of-two device detects its own fault level , it can exchange information with other three-out-of-two devices to obtain the fault levels of other three-out-of-two devices, and then determine its own fault level by comparison. For example, the fault level of three-out-of-two device A is slight, and the fault level of three-out-of-two device B is normal. After three-out-of-two device A exchanges information with three-out-of-two device B, it is determined that the fault level of three-out-of-two device B is lower than the fault level of three-out-of-two device A. Then three-out-of-two device A sets itself to switch from working mode to standby mode, that is, becomes a standby three-out-of-two device. Correspondingly, three-out-of-two device B also compares its own fault level with the fault level of three-out-of-two device A, and determines to switch its own working mode to the main mode, that is, becomes the main three-out-of-two device.

[0153] Optionally, when the above-mentioned valve control system protection device is started, the operation and maintenance equipment can also send a manual mode switching command to the valve control system protection device. When the valve control system protection device receives the manual mode switching command, it sends the manual mode switching command to each three-out-of-two device, and each three-out-of-two device changes its own working mode from automatic switching mode to manual switching mode, that is, each three-out-of-two device no longer automatically switches its own working mode, and the current main three-out-of-two device maintains the current main state, and the current standby three-out-of-two device maintains the current standby state. During this period, the operation and maintenance equipment can also send a forced switching command to the valve control system protection device according to the needs of maintenance personnel. When the valve control system protection device receives the forced switching command, it sends the forced switching command to each three-out-of-two device, and each three-out-of-two device switches its own working mode according to the instruction of the forced switching mode command. For example, if the forced switching mode command can instruct the main three-out-of-two device to switch to the standby state. Figure 2BAs shown, from the perspective of the valve control system protection device, the valve control system protection device is started, and each three-out-of-two device in the valve control system protection device is in automatic switching mode. When each three-out-of-two device in the valve control system protection device receives a manual mode command sent by the operation and maintenance equipment, each three-out-of-two device maintains the current master-slave state; when each three-out-of-two device in the valve control system protection device receives a forced switching mode command sent by the operation and maintenance equipment, each three-out-of-two device switches the master-slave state according to the instruction of the forced switching mode command, and the duty device in the three-out-of-two device is changed. If each three-out-of-two device in the valve control system protection device does not receive the forced switching mode command sent by the operation and maintenance equipment, the current master-slave state is maintained. When the main three-out-of-two device receives a maintenance command issued by the operation and maintenance equipment, if the faulty device is the valve protection device, the main three-out-of-two device forwards the maintenance command to the valve protection device. If the faulty device is its own three-out-of-two device, it enters the maintenance state and switches the master-slave state.

[0154] The embodiment of the present application involves a situation where the faulty device is a valve protection device, and the valve protection device needs to be verified after the maintenance is completed. In this case, when the operation and maintenance equipment receives the maintenance completion message reported by the valve protection device, it can enter the verification process, that is, send a first verification command to the spare three-out-of-two device in the valve control system protection device to notify the three-out-of-two device to switch its own working state from the non-maintenance state to the maintenance state after receiving the first verification command, so that the spare three-out-of-two device immediately enters the online verification process without affecting the normal operation of other devices (for example, the main three-out-of-two device and other valve protection devices), and then verify the successful maintenance of the faulty valve protection device.

[0155] In the embodiment of the present application, the operation and maintenance equipment can verify the faulty valve protection device by instructing the backup three-out-of-two device in the valve control system protection device, thereby realizing automatic verification of the valve protection device after maintenance is completed. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0156] Following the above embodiment, when the faulty valve protection device completes the verification and passes the verification, the valve control system protection device can be further restored to normal operation, that is, Figure 3 The maintenance method described, such as Figure 4 As shown, it also includes:

[0157] S205, upon receiving the verification pass message sent by the faulty valve protection device through the spare three-out-of-two device, an exit command is sent to the valve control system protection device; the exit command is used to instruct the spare three-out-of-two device and the faulty valve protection device to switch to a non-maintenance state.

[0158] The embodiment of the present application involves a faulty device being a valve protection device, and the valve protection device has completed maintenance and verification. In this case, the valve protection device sends a verification pass message to the spare three-out-of-two device, and the spare three-out-of-two device then forwards the verification pass message to the operation and maintenance equipment. When the operation and maintenance equipment receives the verification pass message reported by the valve protection device, it can enter the maintenance exit process, that is, send an exit command to the valve control system protection device to notify the three-out-of-two device in the valve control system protection device to switch its own working state from the maintenance state to the non-maintenance state after receiving the exit command, so that the spare three-out-of-two device immediately enters the normal working state. Moreover, the spare three-out-of-two device then forwards the exit instruction to the faulty valve protection device to notify the valve protection device to switch its own working state from the maintenance state to the non-maintenance state after receiving the exit command, so that the valve protection device immediately enters the normal working state.

[0159] The method described in the embodiment of the present application, after the faulty valve protection device passes the verification, by issuing an exit command, the restored valve protection device and the spare three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state in turn, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0160] In one embodiment, when the operation and maintenance device is based on Figure 2B The process shown can determine the main three-out-of-two device and the backup three-out-of-two device in the valve control system protection device. After determination, when the operation and maintenance equipment issues a maintenance command to the valve control system protection device, it can be specifically executed: a maintenance command is sent to the faulty valve protection device through the main three-out-of-two device in the valve control system protection device; the maintenance command is used to instruct the faulty valve protection device to switch to the maintenance state.

[0161] In the embodiment of the present application, when any valve protection device in the valve control system protection device fails or is abnormal, the valve protection device can trigger the generation of a corresponding fault signal, and upload the fault signal to the operation and maintenance equipment to notify the operation and maintenance equipment that the valve protection device has failed. When the operation and maintenance equipment receives the fault signal, it can further determine the faulty valve protection device based on the fault signal, and then send a maintenance command to the main three-out-of-two device in the valve control system protection device. After receiving the maintenance command, the three-out-of-two device immediately issues the maintenance command to the faulty valve protection device to instruct the valve protection device to switch its own working state from the non-maintenance state to the maintenance state, while the other non-faulty valve protection devices still maintain a normal working state, so that the faulty valve protection device immediately enters the online maintenance process without affecting the normal operation of other devices.

[0162] In the embodiment of the present application, a maintenance command is issued to the faulty valve protection device through the main three-out-of-two device to instruct the valve protection device to enter a maintenance state. Since the main three-out-of-two device is a device with a low fault level, the maintenance command can be issued accurately and efficiently through the main three-out-of-two device, thereby improving the maintenance efficiency of the faulty device to a certain extent.

[0163] The second scenario is: when the faulty device is a two-out-of-three device, a specific implementation method of the above S204 is provided, that is, when the operation and maintenance device specifically performs the step of "sending a verification command" in the above S204, the specific steps are as follows:

[0164] A second verification command is sent to the valve control system protection device; the second verification command is used to indicate successful maintenance verification of the three-out-of-two device that has a fault in the valve control system protection device.

[0165] An embodiment of the present application involves a situation where the faulty device is a three-out-of-two device, and the three-out-of-two device needs to be verified after maintenance is completed. In this case, when the operation and maintenance equipment receives the maintenance completion message reported by the three-out-of-two device, it can enter the verification process, that is, send a second verification command to the valve control system protection device to notify the valve control system protection device to verify the successful maintenance of the three-out-of-two device that has been repaired in the valve control system protection device after receiving the second verification command.

[0166] In an embodiment of the present application, the operation and maintenance equipment can instruct the valve control system protection device to verify the faulty three-out-of-two device therein, thereby realizing automatic verification of the three-out-of-two device after maintenance is completed. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0167] Following the above embodiment, when the above-mentioned three-out-of-two device for the fault completes the verification and passes the verification, the above-mentioned valve control system protection device can be further restored to normal operation, that is, Figure 3 The maintenance method described, such as Figure 5 As shown, it also includes:

[0168] S206, upon receiving a verification pass message sent by the faulty three-out-of-two device in the valve control system protection device, sending an exit command; the exit command is used to instruct the faulty three-out-of-two device to switch to a non-maintenance state.

[0169] The embodiment of the present application involves a faulty device being a three-out-of-two device, and the three-out-of-two device has completed maintenance and verification. In this case, the three-out-of-two device sends a verification pass message to the operation and maintenance equipment. When the operation and maintenance equipment receives the verification pass message reported by the three-out-of-two device, it can enter the maintenance exit process, that is, send an exit command to the three-out-of-two device to notify the three-out-of-two device to switch its own working state from the maintenance state to the non-maintenance state after receiving the exit command, so that the three-out-of-two device immediately enters the normal working state.

[0170] The method described in the embodiment of the present application, after the faulty three-out-of-two device passes the verification, issues an exit command to switch the restored three-out-of-two device from the maintenance state to the non-maintenance state, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and to a certain extent improving the stability of the operation of the entire valve control and protection system.

[0171] above Figure 2-Figure 5 The embodiment is based on the maintenance method of the operation and maintenance equipment side. Figure 6-Figure 16 The embodiment is based on the maintenance method of the valve control system protection device side, and the following embodiment will specifically illustrate the maintenance method.

[0172] In one embodiment, Figure 6 As shown, a maintenance method for a valve control system protection device is provided, and the method is applied to Figure 1 The valve control system protection device in the embodiment is used as an example for explanation, and the valve control system protection device includes multiple valve protection devices and multiple three-out-of-two devices. The method includes the following steps:

[0173] S301, sending a fault signal to the operation and maintenance equipment, and receiving a maintenance command issued by the operation and maintenance equipment.

[0174] In the embodiment of the present application, when any device in the valve control system protection device fails or is abnormal, the device can trigger the generation of a corresponding fault signal, and upload the fault signal to the operation and maintenance equipment to notify the operation and maintenance equipment that a faulty device has appeared in the valve control system protection device. When the operation and maintenance equipment receives the fault signal, it can further determine the faulty device based on the fault signal, and then send a maintenance command to the valve control system protection device, and the valve control system protection device can receive the maintenance command issued by the operation and maintenance equipment.

[0175] S302, controlling the faulty device in the valve control system protection device to switch to a maintenance state according to the maintenance command.

[0176] In an embodiment of the present application, when the valve control system protection device receives a maintenance command, it immediately issues the maintenance command to the faulty device therein to instruct the faulty device to switch its own working state from a non-maintenance state to a maintenance state, while the other non-faulty devices still maintain a normal working state, so that the faulty device immediately enters the online maintenance process without affecting the normal operation of other devices.

[0177] S303, sending a maintenance request to the operation and maintenance equipment; the maintenance request is used to instruct to perform maintenance on the faulty device.

[0178] In the embodiment of the present application, when the operation and maintenance equipment issues a maintenance command to the faulty device in the valve control system protection device based on the above steps, the faulty device is in a maintenance state, indicating that it is ready for maintenance at this time, so the valve control system protection device sends a maintenance request to the operation and maintenance equipment to request maintenance. Later, the operation and maintenance equipment can perform maintenance processing on the faulty device after receiving the maintenance request. Specifically, it can directly establish a connection with the faulty device in the valve control system protection device to perform operations such as program upgrades, report log retrieval, variable viewing, problem tracing and location on the faulty device, so as to locate the fault problem, find the fault problem, analyze the cause of the fault problem, solve the fault problem, etc.; optionally, the operation and maintenance equipment can also notify maintenance personnel to perform maintenance processing such as replacement of the faulty device or replacement of the board in the faulty device.

[0179] The maintenance method described in the embodiment of the present application is that the valve control system protection device sends a fault signal to the operation and maintenance equipment, and receives the maintenance command issued by the operation and maintenance equipment; controls the faulty device in the valve control system protection device to switch to the maintenance state according to the maintenance command; sends a maintenance request to the operation and maintenance equipment, wherein the maintenance request is used to instruct the maintenance of the faulty device. This maintenance method realizes that after the faulty device actively sends a fault signal and a corresponding maintenance request to the operation and maintenance equipment, it can immediately request to process the faulty device, and other non-faulty devices in the valve control system protection device are not limited to various maintenance scenarios and still maintain normal operation, realizing an online maintenance method of remote control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0180] The above-mentioned fault device can be a valve protection device or a three-out-of-two device in a valve control system protection device, and different fault devices correspond to different maintenance methods. The following embodiments will respectively illustrate the corresponding maintenance methods based on different scenarios.

[0181] The first scenario is: when the above-mentioned fault device is a valve protection device, a specific implementation method of S303 is provided, that is, when the valve system protection device specifically performs the above-mentioned S303 "sending a maintenance request to the operation and maintenance equipment", such as Figure 7 As shown, the specific execution steps are:

[0182] S401, a valve protection device in a valve control system that has a fault sends a first message to a two-out-of-three device in the valve control system protection device, wherein the first message includes a maintenance identifier indicating a maintenance status.

[0183] In an embodiment of the present application, when the operation and maintenance equipment issues a maintenance command to a faulty valve protection device in the valve control system protection device based on the aforementioned steps, the valve protection device is in a maintenance state, indicating that it is now ready for maintenance. Therefore, the valve protection device can generate a first message and mark the first message with a maintenance mark, thereby indicating that the valve protection device is in a maintenance state, and then send the first message carrying the maintenance mark to any three-out-of-two device in the valve control system protection device, so that the three-out-of-two device can process the first message later.

[0184] S402, when the working state indicated by the first message is inconsistent with its own working state, the three-out-of-two device generates a maintenance request and sends the maintenance request to the operation and maintenance equipment.

[0185] In an embodiment of the present application, when the three-out-of-two device receives the first message, it can further determine whether the first message carries a maintenance identifier. If it does, it means that the maintenance status of the faulty valve protection device and the three-out-of-two device are inconsistent. In this case, the three-out-of-two device needs to report a maintenance inconsistency alarm message, and considers the first message invalid. The first message is not processed, but a maintenance request is generated and sent to the operation and maintenance equipment to notify the operation and maintenance equipment to repair the faulty valve protection device.

[0186] The valve control system protection device described in the embodiment of the present application can detect the faulty valve protection device through the maintenance mark of the three-out-of-two device, thereby reporting an alarm for maintenance inconsistency, thereby instructing the operation and maintenance equipment to perform maintenance on the faulty valve protection device, realizing automatic detection and processing of maintenance, and improving maintenance efficiency.

[0187] Following the above embodiment, after the repair of the faulty device in the valve control system protection device is completed, in order to verify the repair effect, the verification effect can be further verified, thereby also providing a verification method, namely, Figure 6 The maintenance method described, such as Figure 8 As shown, it also includes:

[0188] S403, generating a maintenance completion message after the faulty device is repaired, and sending the maintenance completion message to the operation and maintenance equipment.

[0189] In an embodiment of the present application, when the maintenance of a faulty device in a maintenance state is completed, the device can trigger the generation of a corresponding maintenance completion message and upload the maintenance completion message to the operation and maintenance equipment to notify the operation and maintenance equipment that the valve control system protection device has been repaired, so that the operation and maintenance equipment can enter the next verification process.

[0190] S404, receiving a verification command issued by the operation and maintenance equipment according to the maintenance completion message.

[0191] When the operation and maintenance equipment receives the maintenance completion message, it can enter the verification process, that is, send a verification command to the valve control system protection device. After receiving the verification command, the valve control system protection device immediately issues the verification command to the faulty device, so that the faulty device immediately enters the online verification process without affecting the normal operation of other devices.

[0192] S405, verifying that the faulty device has been successfully repaired according to the verification command.

[0193] When the valve control system protection device receives the verification command, it can verify the successful maintenance of the faulty device therein. Specifically, the verification command can be issued to the faulty device therein, and the faulty device executes the verification process.

[0194] The embodiment of the present application realizes the verification of the maintenance treatment effect of the valve protection device after the maintenance treatment is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor maintenance treatment effect.

[0195] Following the above embodiment, when the fault device in the valve control system protection device is a valve protection device, that is, in the above first scenario, a specific implementation method of the above S403 is also provided, that is, when the valve system protection device specifically executes the above S403 "generating a maintenance completion message after the fault device is repaired, and sending the maintenance completion message to the operation and maintenance equipment", the specific steps are as follows:

[0196] After the valve protection device that has a fault in the valve control system protection device completes the maintenance, a maintenance completion message is generated, and the maintenance completion message is sent to the operation and maintenance equipment through the three-out-of-two device in the valve control system protection device.

[0197] In an embodiment of the present application, when the valve protection device in maintenance state has completed maintenance, the valve protection device can trigger the generation of a corresponding maintenance completion message, and report the maintenance completion message to any three-out-of-two device in the valve control system protection device. The three-out-of-two device that receives the maintenance completion message will then upload the maintenance completion message to the operation and maintenance equipment to notify the operation and maintenance equipment that the valve protection device has been maintained.

[0198] Correspondingly, when the valve system protection device executes S404 "receiving the verification command issued by the operation and maintenance equipment according to the maintenance completion message", the specific execution steps are:

[0199] The spare three-out-of-two device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful verification of the maintenance of the faulty valve protection device.

[0200] In an embodiment of the present application, when the operation and maintenance equipment receives the maintenance completion message, it can enter the verification process, that is, send a verification command to the valve control system protection device to notify the valve control system protection device to immediately issue the verification command to the verification device that can perform verification after receiving the verification command. The verification device that can perform verification here is the spare three-out-of-two device, so that the three-out-of-two device immediately switches its own working state from the non-maintenance state to the maintenance state, and enters the online verification process without affecting the normal operation of other devices.

[0201] After the faulty valve protection device in the embodiment of the present application completes the maintenance, it can report the maintenance completion message through any three-out-of-two device, and immediately enter the verification process according to the instructions of the operation and maintenance equipment, thereby completing the fully automatic operation from maintenance to verification, which can improve the maintenance efficiency and the intelligence of the entire valve control system protection device to a certain extent.

[0202] Following the above embodiment, when the fault device in the valve control system protection device is a valve protection device, that is, in the above first scenario, a specific implementation method of the above S403 is also provided, that is, after the valve system protection device specifically executes the above S403 step of "generating a maintenance completion message after the fault device is repaired, and sending the maintenance completion message to the operation and maintenance equipment", as follows Fig. 9 As shown, the steps are also performed:

[0203] S501, the faulty valve protection device sends a second message to the three-out-of-two device.

[0204] In an embodiment of the present application, when the faulty valve protection device sends a maintenance completion message to the operation and maintenance equipment and changes its own working state to the maintenance state, a second message carrying a maintenance identifier can be generated and sent to any three-out-of-two device in the valve control system protection device to indicate to any three-out-of-two device that its own working state is the maintenance state, so that the three-out-of-two device that receives the second message can process the second message.

[0205] S502: When the working state indicated by the second message is consistent with the working state of the two-out-of-three device, the two-out-of-three device verifies the faulty valve protection device according to the second message.

[0206] In the embodiment of the present application, when the three-out-of-two device receives the second message, it can further determine whether the second message carries a maintenance mark, and whether its own working state is in the maintenance state. If it carries it, and it is in the maintenance state, it means that the maintenance state of the faulty valve protection device is consistent with that of the three-out-of-two device. In this case, the three-out-of-two device can report the alarm elimination information consistent with the maintenance, and consider the second message to be valid, and process the second message, and specifically verify the faulty valve protection device by parsing the second message. In addition, if the second message carries a maintenance mark, and its own working state is in the non-maintenance state, it means that the maintenance state of the faulty valve protection device is inconsistent with that of the three-out-of-two device. In this case, the three-out-of-two device can report the alarm information of inconsistent maintenance, and consider the second message to be invalid, and do not process the second message until it detects that its own working state is in the maintenance state.

[0207] The embodiment of the present application verifies the valve protection device that has been repaired through a three-out-of-two device, and automatic verification can be achieved by parsing the second message reported by the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0208] Furthermore, a method for verifying the valve protection device according to the second message is provided, such as Fig.10 As shown, the method includes:

[0209] S601, parse the second message to obtain a first analysis result. If the first analysis result indicates that the faulty valve protection device operates normally, execute step S602; if the first analysis result indicates that the faulty valve protection device operates abnormally, execute step S603.

[0210] S602, determining whether the faulty valve protection device has passed verification.

[0211] S603, determining that the faulty valve protection device has failed verification.

[0212] An embodiment of the present application relates to a method for performing recovery verification on a faulty valve protection device by a three-out-of-two device, that is, following the above embodiment, when the three-out-of-two device receives a second message reported by the faulty valve protection device, it can parse the second message to determine whether the second message is a message sent by the restored valve protection device in a normal state. If so, it means that the valve protection device has been restored to normal, that is, a first analysis result indicating the normal operation of the valve protection device is obtained, indicating that the verification is passed; if not, it means that the valve protection device is still faulty, that is, a first analysis result indicating the abnormal operation of the valve protection device is obtained, indicating that the verification is not passed; optionally, the second message is parsed to obtain the current working information or status information of the valve protection device, and then according to the current working information or status information of the valve protection device, it is determined whether the function of the originally faulty or abnormal valve protection device is normal. If normal, the first analysis result indicating the normal operation of the valve protection device is obtained, and the verification is passed; if abnormal, the first analysis result indicating the abnormal operation of the valve protection device is obtained, and the verification is not passed.

[0213] The valve control system protection device in the embodiment of the present application can verify the valve protection device by parsing the second message reported by the valve protection device after maintenance. The verification process can be executed by the three-out-of-two device in the valve control system protection device, which further improves the verification efficiency of the valve control system protection device and thus improves the stability of the operation of the valve control protection system where the entire valve control system protection device is located.

[0214] Following the above embodiment, when the valve protection device passes the verification, the valve control system protection device, such as Fig.11 As shown, the steps are also performed:

[0215] S701, after the faulty valve protection device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance equipment through the three-out-of-two device in the valve control system protection device.

[0216] In an embodiment of the present application, when the valve protection device passes the verification, a verification completion message can be generated and sent to any three-out-of-two device in the valve control system protection device, or a three-out-of-two device that has previously verified the valve protection device, and the three-out-of-two device will then send the verification completion message to the operation and maintenance equipment.

[0217] S702, the spare three-out-of-two device in the valve control system protection device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to the non-maintenance state, and sends the exit command to the faulty valve protection device.

[0218] When the operation and maintenance equipment generates an exit command according to the verification completion message, the exit command can be sent to the valve control system protection device. The valve control system protection device sends the exit command to the backup three-out-of-two device, indicating that the three-out-of-two device has completed the verification task. The three-out-of-two device switches its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation. Moreover, the three-out-of-two device will also forward the exit command to the valve protection device that has completed the verification. It should be noted that the above-mentioned backup three-out-of-two device is the three-out-of-two device corresponding to the previous verification of the valve protection device.

[0219] S703, the faulty valve protection device is switched to a non-maintenance state according to an exit command.

[0220] When the valve protection device receives the exit command, it can switch its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation.

[0221] After the faulty valve protection device in the device described in this embodiment passes the verification, the corresponding restored valve protection device and the spare three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state in succession, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0222] Based on all the above maintenance methods corresponding to the scenario involving the faulty device being a valve protection device, the following embodiment exemplarily illustrates the scenario where the valve protection device is a faulty device, namely:

[0223] If a single valve protection device is abnormal or fails and needs to be handled, such as Fig.12As shown, during the operation of the valve control system protection device, it is determined whether there is a faulty valve protection device in the valve control system protection device. When there is a faulty valve protection device, the operation and maintenance equipment confirms the master-slave mode of each three-out-of-two device in the current valve control system protection device, that is, determines the main three-out-of-two device and the backup three-out-of-two device, and then switches the current working mode from the automatic switching mode to the manual switching mode. At this time, each three-out-of-two device stops switching its own working mode (the working mode includes the main mode and the backup mode), and the three-out-of-two devices share data, monitor the master-slave status and its fault status, and issue timely warnings. The operation and maintenance equipment sends a maintenance command to the abnormal or faulty valve protection device through the main three-out-of-two device. The corresponding valve protection device switches to the maintenance state and sends a message with a maintenance mark. Each three-out-of-two device receives the message with the maintenance mark. If the working state of the three-out-of-two device itself is not the maintenance state, it is considered that the maintenance is inconsistent and an alarm is sent. At the same time, the message with the maintenance mark reported by the corresponding valve protection device is considered to be an invalid message, and the message of this valve protection device is no longer responded. At this time, other three-out-of-two devices and other normal valve protection devices operate normally. At this time, the operation and maintenance equipment can repair the valve protection device through the upper computer software, including but not limited to program upgrades, report log retrieval, variable viewing, problem tracing and positioning, etc., until the problem is solved. If the valve protection device or the board in the valve protection device needs to be replaced, the power is turned off in the maintenance state. After the valve protection device or the board in the valve protection device is replaced, the power is turned on. The valve protection device sends the message with the maintenance mark in the first frame to avoid affecting the system operation. At this time, by verifying whether the valve protection device is ready for operation after maintenance, the operation and maintenance equipment sends a verification command to the spare three-out-of-two device, and the spare three-out-of-two device switches to the maintenance state. The message with the maintenance mark sent by the valve protection device is identified. If the maintenance is consistent, the maintenance inconsistency alarm is restored. At the same time, the message with the maintenance mark sent by the valve protection device is parsed to verify the message and perform functional operations, or report the data of the valve protection device through the three-out-of-two device to the operation and maintenance equipment according to the link for message verification and functional operations to confirm whether the original faulty or abnormal valve protection device can operate normally. After that, the three-out-of-two device can be switched to a non-maintenance state in sequence, and the three-out-of-two device can be put into operation, and then the valve protection device can be switched to a non-maintenance state, and the valve protection device can be put into operation. The above-mentioned valve control system protection device realizes seamless switching of the system operation mode, while ensuring safe and stable operation and processing of the valve control system.

[0224] The second scenario is: when the above-mentioned fault device is a three-out-of-two device, a specific implementation method of S403 is provided, that is, when the valve system protection device specifically performs the above-mentioned S403 "generating a maintenance completion message after the fault device is repaired, and sending the maintenance completion message to the operation and maintenance equipment", the specific execution steps are:

[0225] After the maintenance of the three-out-of-two device that fails in the valve control system protection device is completed, a maintenance completion message is generated and sent to the operation and maintenance equipment.

[0226] In an embodiment of the present application, when the three-out-of-two device in maintenance state has completed maintenance, the three-out-of-two device can trigger the generation of a corresponding maintenance completion message and report the maintenance completion message to the operation and maintenance equipment to notify the operation and maintenance equipment that the three-out-of-two device has completed maintenance.

[0227] Correspondingly, when the valve system protection device executes S404 "receiving the verification command issued by the operation and maintenance equipment according to the maintenance completion message", the specific execution steps are:

[0228] The valve protection device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful maintenance verification of the faulty three-out-of-two device.

[0229] In an embodiment of the present application, when the operation and maintenance equipment receives the maintenance completion message, it can enter the verification process, that is, send a verification command to the valve control system protection device to notify the valve control system protection device to immediately issue the verification command to the verification device that can perform verification after receiving the verification command. The verification device that can perform verification here is any valve protection device in the valve control system protection device, so that the valve protection device that receives the verification instruction immediately switches its own working state from the non-maintenance state to the maintenance state, and enters the online verification process without affecting the normal operation of other devices.

[0230] In the embodiment of the present application, after the maintenance of the three-out-of-two device that has failed is completed, it can be verified by any valve protection device, and the verification process can be immediately entered according to the instructions of the operation and maintenance equipment, thereby completing the fully automatic operation from maintenance to verification, which can improve the maintenance efficiency and the intelligence of the entire valve control system protection device to a certain extent.

[0231] Optionally, when the valve control system protection device is connected to an external valve control device, and the valve control device is connected to a three-out-of-two device in the valve control system protection device, the operation and maintenance device can send a verification command to the valve control device, and the valve control device verifies the three-out-of-two device that has completed maintenance. Specifically, the valve control device receives the verification command sent by the operation and maintenance device based on the maintenance completion message and switches to the maintenance state; the verification command is used to indicate the successful verification of the maintenance of the faulty three-out-of-two device.

[0232] After the maintenance of the three-out-of-two device that has failed in the embodiment of the present application is completed, it can be verified by any valve control device connected to it, and the verification process can be immediately entered according to the instructions of the operation and maintenance equipment, thereby completing the fully automatic operation from maintenance to verification, which can improve the maintenance efficiency and the intelligence of the entire valve control system protection device to a certain extent.

[0233] Following the above embodiment, when the faulty device in the valve control system protection device is a three-out-of-two device, that is, in the above second scenario, a specific implementation method of the above S403 is also provided, that is, after the valve system protection device specifically executes the above S403 "generating a maintenance completion message after the three-out-of-two device that has a fault in the valve control system protection device completes maintenance, and sending the maintenance completion message to the operation and maintenance equipment", such as Fig.13 As shown, the steps are also performed:

[0234] S801, the failed three-out-of-two device sends a third message to the valve protection device.

[0235] In an embodiment of the present application, when the faulty three-out-of-two device sends a maintenance completion message to the operation and maintenance equipment and changes its own working state to the maintenance state, a third message carrying a maintenance identifier can be generated and sent to any valve protection device in the valve control system protection device to indicate to any valve protection device that its own working state is the maintenance state, so that the valve protection device that receives the third message can process the third message.

[0236] S802: When the working state indicated by the third message is consistent with the working state of the valve protection device itself, the valve protection device verifies the failed three-out-of-two device according to the third message.

[0237] In the embodiment of the present application, when the valve protection device receives the third message, it can further determine whether the third message carries a maintenance mark and whether its own working state is in a maintenance state. If it carries a maintenance mark and its own working state is in a maintenance state, it indicates that the maintenance state of the faulty three-out-of-two device and the valve protection device are consistent. In this case, the valve protection device can report the alarm elimination information consistent with the maintenance, and consider the third message to be valid, and process the third message, and specifically verify the faulty three-out-of-two device by parsing the third message. In addition, if the third message carries a maintenance mark and its own working state is in a non-maintenance state, it indicates that the maintenance state of the faulty three-out-of-two device and the valve protection device are inconsistent. In this case, the valve protection device can report the alarm information of inconsistent maintenance, and consider the third message to be invalid, and do not process the third message until it detects that its own working state is in a maintenance state. It should be noted that when the valve protection device used for verification in this embodiment reports any information, it can be reported through other normal three-out-of-two devices in the valve control system protection device. For example, the valve protection device reports the alarm information of maintenance inconsistency to the operation and maintenance equipment through one of the three-out-of-maintenance devices in a non-maintenance state, or the valve protection device reports the elimination alarm information of maintenance consistency to the operation and maintenance equipment through one of the three-out-of-maintenance devices in a non-maintenance state. When the operation and maintenance equipment obtains the elimination alarm information of maintenance consistency, the previous maintenance inconsistent alarm information can be eliminated.

[0238] The embodiment of the present application verifies the three-out-of-two device that has completed maintenance through the valve protection device, and automatic verification can be achieved by parsing the third message sent from the three-out-of-two device to the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0239] Furthermore, a method for verifying a two-out-of-three device according to a third message is provided, such as Fig.14 As shown, the method includes:

[0240] S901, parse the third message to obtain a second parsing result. If the second parsing result indicates that the three-out-of-two device with a fault is operating normally, execute step S902; if the second parsing result indicates that the three-out-of-two device with a fault is operating abnormally, execute step S903.

[0241] S902, determine whether the failed three-out-of-two device has passed the verification.

[0242] S903, determining that the faulty three-out-of-two device has failed verification.

[0243] An embodiment of the present application relates to a method for a valve protection device to perform recovery verification on a faulty three-out-of-two device, that is, following the above embodiment, when the valve protection device receives a third message sent by the faulty three-out-of-two device, the third message can be parsed to determine whether the third message is a message sent by the restored three-out-of-two device in a normal state. If so, it means that the three-out-of-two device has been restored to normal, that is, a second parsing result indicating the normal operation of the three-out-of-two device is obtained, indicating that the verification is passed; if not, it means that the three-out-of-two device is still faulty, that is, a second parsing result indicating the abnormal operation of the three-out-of-two device is obtained, indicating that the verification has not passed; optionally, the third message is parsed to obtain the current working information or status information of the three-out-of-two device, and then according to the current working information or status information of the three-out-of-two device, it is determined whether the function of the originally faulty or abnormal three-out-of-two device is normal. If normal, a second parsing result indicating the normal operation of the three-out-of-two device is obtained, and the verification is passed; if abnormal, a second parsing result indicating the abnormal operation of the three-out-of-two device is obtained, and the verification has not passed.

[0244] The valve control system protection device in the embodiment of the present application can verify the three-out-of-two device by parsing the third message reported by the three-out-of-two device that has completed maintenance. The verification process can be executed by the valve protection device in the valve control system protection device, which further improves the verification efficiency of the valve control system protection device, and then improves the stability of the operation of the valve control protection system where the entire valve control system protection device is located.

[0245] Following the above embodiment, when the three-out-of-two device passes the verification, the valve control system protection device, such as Fig.15 As shown, the steps are also performed:

[0246] S1001, after the failed three-out-of-two device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance equipment.

[0247] In the embodiment of the present application, when the three-out-of-two device passes the verification, a verification completion message can be generated and sent to the operation and maintenance equipment. If the valve control system protection device is also connected to the peripheral valve control equipment, and the valve control equipment is connected to the operation and maintenance equipment, then after the three-out-of-two device passes the verification, the verification completion message is sent to the valve control equipment, and then sent to the operation and maintenance equipment by the valve control equipment.

[0248] S1002, the faulty three-out-of-two device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to the non-maintenance state, and sends the exit command to the valve protection device in the valve control system protection device that is in the maintenance state.

[0249] When the operation and maintenance equipment generates an exit command according to the verification completion message, the exit command can be sent to the valve control system protection device, and the valve control system protection device sends the exit command to the three-out-of-two device that has completed the verification. The three-out-of-two device switches its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation. In addition, the three-out-of-two device will also forward the exit command to the valve protection device that has completed the verification task and is in the maintenance state.

[0250] Optionally, when the valve control system protection device is connected to the peripheral valve control equipment, and the valve control equipment verifies the three-out-of-two device, the operation and maintenance equipment can send an exit command to the valve control equipment, and the valve control equipment switches its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation. Then, the valve control equipment forwards the exit command to the three-out-of-two device that has completed the verification, instructing the three-out-of-two device to switch its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation.

[0251] S1003, the valve protection device switches to a non-maintenance state according to an exit instruction.

[0252] When the valve protection device receives an exit command from the three-out-of-two device, it can switch its own working state from the maintenance state to the non-maintenance state, so as to seamlessly connect to the valve control protection system where the entire valve control system protection device is located for normal operation.

[0253] After the faulty three-out-of-two device in the device described in this embodiment is verified, the corresponding restored three-out-of-two device and the valve protection device used for verification are switched from the maintenance state to the non-maintenance state successively, realizing the seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0254] Optionally, when the valve control system protection device is connected to the peripheral valve control equipment, the valve control equipment is connected to the operation and maintenance equipment, and the valve control equipment is connected to the three-out-of-two device in the valve control system protection device, the operation and maintenance equipment can send a verification command to the valve control equipment, and the valve control equipment verifies the three-out-of-two device that has been repaired. Specifically, the faulty three-out-of-two device sends a message to the valve control equipment, and the valve control equipment verifies the faulty three-out-of-two device according to the message when the working state indicated by the message is consistent with its own working state. The verification process of the valve control equipment verifying the three-out-of-two device is basically the same as the verification process of the valve protection device verifying the three-out-of-two device. Please refer to the above description for details, which will not be repeated here.

[0255] Based on all the above maintenance methods corresponding to the scenario where the faulty device is a three-out-of-two device, the following embodiment exemplarily illustrates the scenario where the three-out-of-two device is a faulty device, namely:

[0256] If a single 3-out-of-2 device has an abnormality or failure and needs to be handled, such as Fig.16As shown, during the operation of the valve control system protection device, it is determined whether there is a faulty three-out-of-two device in the valve control system protection device. When there is a faulty three-out-of-two device, the operation and maintenance equipment confirms the master-slave mode of each three-out-of-two device in the current valve control system protection device, that is, determines the main three-out-of-two device and the backup three-out-of-two device, and then switches the current working mode from the automatic switching mode to the manual switching mode. At this time, each three-out-of-two device stops switching its own working mode (the working mode includes the main mode and the backup mode), and the three-out-of-two devices share data, monitor the master-slave status and its fault status, and issue timely warnings. The operation and maintenance equipment sends a maintenance command to the faulty three-out-of-two device, and the corresponding three-out-of-two device switches to the maintenance state, and sends a message with a maintenance mark to any valve protection device or valve control device. The valve protection device or valve control device receives the message with the maintenance mark. If the working state of the valve protection device or valve control device itself is not in the maintenance state, it is considered that the maintenance is inconsistent and an alarm is sent. At the same time, the message with the maintenance mark reported by the corresponding three-out-of-two device is considered to be an invalid message, and the message of this three-out-of-two device is no longer responded. At this time, other three-out-of-two devices and other valve protection devices or valve control devices operate normally. At this time, the operation and maintenance equipment can perform maintenance on the three-out-of-two device through the upper computer software, including but not limited to program upgrades, report log retrieval, variable viewing, problem tracing and location positioning, etc., until the problem is solved. If it is necessary to replace the board in the three-out-of-two device or the three-out-of-two device, the power is turned off in the maintenance state. After the board in the three-out-of-two device or the three-out-of-two device is replaced, the power is turned on. The three-out-of-two device sends the message with the maintenance mark in the first frame to avoid affecting the operation of the system. At this time, by verifying whether the three-out-of-two device is in operation condition after maintenance, the operation and maintenance equipment sends a verification command to the valve protection device or the valve control device, and the valve protection device or the valve control device switches to the maintenance state, and the message with the maintenance mark sent by the three-out-of-two device is judged. At this time, if the maintenance is consistent, the maintenance inconsistency alarm is restored. At the same time, the message with the maintenance mark sent by the three-out-of-two device is parsed to realize the verification and function operation of the message, or the data of the three-out-of-two device is reported to the operation and maintenance equipment according to the link for message verification and function operation to confirm whether the original faulty or abnormal three-out-of-two device can operate normally. After that, the valve protection device or valve control equipment can be switched to a non-maintenance state in sequence, and all valve protection devices or valve control equipment can be put into operation, and the three-out-of-two device can be switched to a non-maintenance state, and the three-out-of-two device can be put into operation. The above-mentioned valve control system protection device realizes the seamless switching of the system operation mode, and at the same time ensures the safe and stable operation of the valve control system.

[0257] In one embodiment, a valve control protection system is also provided. Fig.17As shown, the valve control protection system includes a valve control system protection device and an operation and maintenance device, wherein the valve control system protection device includes a three-out-of-two device and a valve protection device; the three-out-of-two device and the valve protection device are connected in communication, and the three-out-of-two device and the operation and maintenance device are connected in communication; the operation and maintenance device is used to perform the above Figure 2-Figure 12 The maintenance method described in the embodiment; the valve control system protection device is used to perform the above Figure 2-Figure 12 The maintenance method described in the embodiment.

[0258] Furthermore, a valve control protection system is also provided, such as Fig.18 As shown, the valve control protection system also includes: valve control equipment, recording equipment and monitoring equipment. The three-out-of-two device is connected to the valve control equipment and the recording equipment respectively. The three-out-of-two device is also connected to the monitoring equipment and the operation and maintenance equipment through the network; the valve control equipment is connected to the monitoring equipment and the operation and maintenance equipment through the network. The operation and maintenance equipment is used to perform the above Figure 2-Figure 12 The maintenance method described in the embodiment; the valve control system protection device is used to perform the above Figure 2-Figure 12 Maintenance method described in the embodiment. It should be noted that the monitoring equipment and recording equipment are not involved in the previous embodiment. The functions of the monitoring equipment and recording equipment are basically the same as those of the operation and maintenance equipment. Please refer to the above description for the corresponding working principle, which will not be repeated here.

[0259] Fig.17 and Fig.18 The valve-controlled protection system shown supports a method for remote control online maintenance, and each three-out-of-two device can be switched between the primary and standby modes. During the switching process, the three-out-of-two devices may be in the primary state at the same time. In this case, the "later master is the primary", that is, the three-out-of-two device that becomes the primary later is used as the primary three-out-of-two device; there may also be a situation where the three-out-of-two devices are in the standby state at the same time. In this case, the "first master is the primary", that is, the three-out-of-two device that becomes the standby first is used as the standby three-out-of-two device. Moreover, when the same primary and standby modes occur, an alarm will be reported. This method can clearly distinguish between the primary and standby three-out-of-two devices, so that each three-out-of-two device can work together and perform its own duties, thereby improving the maintenance efficiency of the valve control system protection device in the entire valve-controlled protection system.

[0260] The valve-controlled protection system described in the above application embodiment supports online operation and remote maintenance, which is not limited to the scenarios of problem finding, positioning, problem solving, program upgrade, on-site recovery test, etc. Through the above remote control online maintenance method, some equipment has problems in a specific environment on site. If the power is off, the problem often cannot be reproduced. The above maintenance method can locate and find the problem while the on-site environment remains unchanged and the problem exists, and find the cause of the problem fundamentally. The problem can be completely solved, which improves the reliability of the subsequent operation of the valve-controlled protection system to a certain extent.

[0261] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0262] Based on the same inventive concept, the embodiment of the present application also provides a maintenance device for implementing the maintenance method of the valve control system protection device involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more maintenance device embodiments provided below can refer to the limitations on the maintenance method above, and will not be repeated here.

[0263] In one embodiment, Fig.19 As shown, a maintenance device is provided, comprising:

[0264] The sending module 10 is used to send a maintenance command to the valve control system protection device when receiving a fault signal sent by the fault device in the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state.

[0265] The receiving module 11 is used to receive the maintenance request reported by the valve control system protection device based on the maintenance command.

[0266] The maintenance module 12 is used to perform maintenance processing on the faulty device according to the maintenance request.

[0267] Each module in the above maintenance device can be implemented in whole or in part by software, hardware and their combination. Each module can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0268] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig. 20As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a maintenance method for a valve control system protection device is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0269] Those skilled in the art will understand that Fig. 20 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0270] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0271] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0272] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0273] Perform maintenance on the faulty device according to the maintenance request.

[0274] The computer device provided in the above embodiment has an implementation principle and technical effects similar to those of the above method embodiment, which will not be described in detail here.

[0275] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0276] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0277] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0278] Perform maintenance on the faulty device according to the maintenance request.

[0279] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effect are similar to those of the above method embodiment, and will not be repeated here.

[0280] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0281] When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state;

[0282] receiving a maintenance request reported by the valve control system protection device based on the maintenance command;

[0283] Perform maintenance on the faulty device according to the maintenance request.

[0284] The above embodiment provides a computer program product, whose implementation principle and technical effect are similar to those of the above method embodiment, and will not be repeated here.

[0285] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0286] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0287] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for repairing a valve control system protection device, It is characterized in that The maintenance method is applied to operation and maintenance equipment, and the maintenance method comprises: When receiving a fault signal sent by a fault device in the valve control system protection device, sending a maintenance command to the valve control system protection device; the maintenance command is used to instruct the fault device to switch to a maintenance state; receiving a maintenance request reported by the valve control system protection device based on the maintenance command; Perform maintenance on the faulty device according to the maintenance request.

2. The method according to claim 1, It is characterized in that The method further comprises: When a maintenance completion message is received from the faulty device, a verification command is sent; the verification command is used to indicate that the maintenance of the faulty device is successfully verified.

3. The method according to claim 2, It is characterized in that The fault device is a valve protection device, and sending a verification command includes: A first verification command is sent to the spare three-out-of-two device in the valve control system protection device; the first verification command is used to instruct the spare three-out-of-two device to switch to a maintenance state, and to verify the successful maintenance of the faulty valve protection device in the valve control system protection device.

4. The method according to claim 3, It is characterized in that The method further comprises: Upon receiving a verification pass message sent by the faulty valve protection device through the backup three-out-of-two device, an exit command is sent to the valve control system protection device; the exit command is used to instruct the backup three-out-of-two device and the faulty valve protection device to switch to a non-maintenance state.

5. The method according to any one of claims 1 to 4, It is characterized in that The sending of the maintenance command comprises: The maintenance command is sent to the faulty valve protection device through the main three-out-of-two device in the valve control system protection device; the maintenance command is used to instruct the faulty valve protection device to switch to the maintenance state.

6. The method according to claim 2, It is characterized in that The faulty device is a two-out-of-three device, and sends a verification command, including: A second verification command is sent to the valve control system protection device; the second verification command is used to indicate a successful maintenance verification of the three-out-of-two device that has a fault in the valve control system protection device.

7. The method according to claim 6, It is characterized in that The method further comprises: Upon receiving a verification pass message sent by a faulty three-out-of-two device in the valve control system protection device, an exit command is sent; the exit command is used to instruct the faulty three-out-of-two device to switch to a non-maintenance state.

8. A method for repairing a valve control system protection device, It is characterized in that The method is applied to a valve control system protection device, and the method comprises: Sending fault signals to the operation and maintenance equipment, and receiving maintenance commands issued by the operation and maintenance equipment; Controlling the faulty device in the valve control system protection device to switch to a maintenance state according to the maintenance command; Sending a maintenance request to the operation and maintenance equipment; the maintenance request is used to instruct maintenance processing to be performed on the faulty device.

9. The method according to claim 8, It is characterized in that The sending a maintenance request to the operation and maintenance equipment includes: The valve protection device in the valve control system protection device that has a fault sends a first message to the three-out-of-two device in the valve control system protection device; the first message includes a maintenance mark indicating a maintenance status; When the working state indicated by the first message is inconsistent with its own working state, the two-out-of-three device generates the maintenance request and sends the maintenance request to the operation and maintenance equipment.

10. The method according to claim 8 or 9, It is characterized in that The method further comprises: After the faulty device is repaired, a repair completion message is generated, and the repair completion message is sent to the operation and maintenance equipment; Receiving a verification command issued by the operation and maintenance equipment according to the maintenance completion message; The faulty device is verified to be successfully repaired according to the verification command.

11. The method according to claim 10, It is characterized in that The generating a maintenance completion message after the faulty device is repaired, and sending the maintenance completion message to the operation and maintenance equipment, comprises: After the valve protection device with a fault in the valve control system protection device is repaired, the repair completion message is generated, and the repair completion message is sent to the operation and maintenance equipment through the three-out-of-two device in the valve control system protection device; The receiving a verification command issued by the operation and maintenance device according to the maintenance completion message includes: The spare three-out-of-two device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful maintenance verification of the faulty valve protection device.

12. The method according to claim 11, It is characterized in that After the faulty valve protection device sends the maintenance completion message to the operation and maintenance equipment, the method further includes: The faulty valve protection device sends a second message to the three-out-of-two device; When the working state indicated by the second message is consistent with the working state of the two-out-of-three device, the two-out-of-three device verifies the faulty valve protection device according to the second message.

13. The method according to claim 12, It is characterized in that The verifying the faulty valve protection device according to the second message includes: Parsing the second message to obtain a first parsing result; If the first analysis result indicates that the faulty valve protection device operates normally, determining that the faulty valve protection device passes the verification; If the first analysis result indicates that the faulty valve protection device is not operating normally, it is determined that the faulty valve protection device has failed verification.

14. The method according to any one of claims 11 to 13, It is characterized in that The method further comprises: After the faulty valve protection device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance device through a two-out-of-three device in the valve control system protection device; The spare three-out-of-two device in the valve control system protection device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to a non-maintenance state, and issues the exit command to the valve protection device that has a fault; The faulty valve protection device is switched to a non-maintenance state according to the exit command.

15. The method according to claim 10, It is characterized in that The generating a maintenance completion message after the faulty device is repaired, and sending the maintenance completion message to the operation and maintenance equipment, comprises: After the maintenance of the three-out-of-two device that has failed in the valve control system protection device is completed, a maintenance completion message is generated, and the maintenance completion message is sent to the operation and maintenance equipment; The receiving a verification command issued by the operation and maintenance device according to the maintenance completion message includes: The valve protection device in the valve control system protection device receives the verification command issued by the operation and maintenance equipment according to the maintenance completion message, and switches to the maintenance state; the verification command is used to indicate the successful maintenance verification of the faulty three-out-of-two device.

16. The method according to claim 15, It is characterized in that After the failed three-out-of-two device sends the maintenance completion message to the operation and maintenance equipment, the method further includes: The failed three-out-of-two device sends a third message to the valve protection device; When the working state indicated by the third message is consistent with the valve protection device's own working state, the valve protection device verifies the failed three-out-of-two device according to the third message.

17. The method according to claim 16, It is characterized in that The verifying the failed three-out-of-two device according to the third message includes: Parsing the third message to obtain a second parsing result; If the second analysis result indicates that the faulty three-out-of-two device operates normally, it is determined that the faulty three-out-of-two device has passed the verification; if the second analysis result indicates that the faulty three-out-of-two device operates abnormally, it is determined that the faulty three-out-of-two device has not passed the verification.

18. The method according to any one of claims 15 to 17, It is characterized in that The method further comprises: After the failed two-out-of-three device passes the verification, a verification completion message is generated, and the verification completion message is sent to the operation and maintenance device; The failed three-out-of-two device receives the exit command issued by the operation and maintenance equipment according to the verification completion message, switches to a non-maintenance state, and sends the exit command to the valve protection device in the valve control system protection device that is in the maintenance state; The valve protection device is switched to a non-maintenance state according to the exit instruction.

19. A valve control protection system, It is characterized in that The valve control protection system comprises: a valve control system protection device and an operation and maintenance device, wherein the valve control system protection device comprises a three-out-of-two device and a valve protection device; the three-out-of-two device is communicatively connected to the valve protection device, and the three-out-of-two device is communicatively connected to the operation and maintenance device; The operation and maintenance equipment is used to perform the maintenance method according to any one of claims 1 to 7; The valve control system protection device is used to execute the maintenance method as described in any one of claims 8-18.

20. The method according to claim 19, It is characterized in that The valve-controlled protection system also includes: valve control equipment, recording equipment and monitoring equipment. The three-out-of-two device is connected to the valve control equipment and the recording equipment respectively, and the three-out-of-two device is also connected to the monitoring equipment and the operation and maintenance equipment through a network; the valve control equipment is connected to the monitoring equipment and the operation and maintenance equipment through the network.

21. A computer device comprising a memory, a processor and a transceiver, wherein the memory stores a computer program, It is characterized in that When the processor executes the computer program, the steps of the method according to any one of claims 1 to 17 are implemented.

22. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 17 are implemented.

23. A computer program product comprising a computer program, It is characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 17 are implemented.

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