A device and method for wireless mobile monitoring in a smart substation

Abstract

The present invention discloses a device and method for wireless mobile monitoring in an intelligent substation, and relates to the technical field of electric power monitoring; the device comprises a second communication device located in an equipment room for obtaining equipment information, and also comprises a mobile terminal used by operation and maintenance personnel, and a bastion host and a third communication device located in the equipment room; the method comprises a judgment step, wherein the mobile terminal obtains equipment information sent by the third communication device, compares the equipment information obtained by the mobile terminal with the equipment information of the actual state of the secondary equipment side, and obtains whether the equipment information of the actual state of the secondary equipment side is consistent with or inconsistent with the equipment information received by the mobile terminal side; through the mobile terminal, the bastion host and the third communication device located in the equipment room, etc., it is possible to judge whether the equipment information of the actual state of the equipment side is consistent with the equipment information sent, and the working efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power monitoring, and in particular to a device and method for wireless mobile monitoring in an intelligent substation. Background Art

[0002] At present, during the equipment information acceptance stage of smart substations, when operation and maintenance personnel carry out a large amount of equipment information remote signaling work, two people are required to be in the equipment area and two people in the monitoring background, using communication equipment to communicate, which results in low work efficiency.

[0003] The application publication number is CN 114158217 A, and its name is the custom value transfer method for the main station system. The station-side personnel operate the terminal equipment, receive the task, check and download the fixed value, and send the operation log to the fixed value verification server. The fixed value verification server sends the operation log to the main station management and control system; the main station management and control system sends the operation log to the Baoxin main station, the Baoxin main station verifies the operation log, and feeds back the verification result to the terminal equipment; the station-side personnel check the verification result through the terminal equipment, if it passes, proceed to the next step, if it fails, re-check and download the fixed value. The use of portable fixed value operation and maintenance terminal equipment can complete "one-click" data synchronization, as well as "one-click" fixed value verification and decentralization, speeding up the fixed value verification and modification speed; the terminal equipment completes the on-site verification, and the Baoxin main station performs remote verification, and both verifications are completed through the task, improving accuracy.

[0004] The authorization announcement number is CN 105978140 B, and the name is "A method for information fusion of power equipment". Based on the IEC61850 information model extension and Webservice remote call technology, a method for information fusion of primary and secondary equipment is proposed, which expands the online monitoring logical nodes of intelligent electronic equipment, computer-type equipment and components, and realizes the unified modeling, unified collection and unified processing of primary and secondary equipment status information. The online monitoring function of primary and secondary equipment is uniformly completed by the substation equipment status monitoring system, eliminating the phenomenon of information islands in the substation equipment status monitoring, and adopts the Web Service remote call method to obtain production management information to realize the linkage between production, operation and maintenance, and support integrated control and unmanned operation.

[0005] Combining the above two patent documents and existing technical solutions, the inventors analyzed and found that the following technical problems exist in the existing technical solutions.

[0006] The existing technical solution is that the equipment information in the equipment area is uploaded to the monitoring background of the main control room through the station control layer network. The actual status information of the equipment can be viewed in the equipment area, but it cannot be determined whether the equipment information is correctly uploaded to the monitoring background of the main control room, and the equipment information and the monitoring background information cannot be unified in space. The only way is for the operation and maintenance personnel in the equipment area to communicate with the operation and maintenance personnel in the main control room, or for the monitoring background personnel to go to the site to verify whether the equipment information is correct.

[0007] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a wireless mobile monitoring method in a smart substation, so as to integrate the equipment information and the monitoring background information in the same space.

[0008] Existing technical problems and considerations:

[0009] How to solve the technical problem of low efficiency in determining the consistency between the device information of the actual status on the device side and the device information received on the management server side. Summary of the invention

[0010] The technical problem to be solved by the present invention is to provide a device and method for wireless mobile monitoring in a smart substation, so as to solve the technical problem of low efficiency in judging the consistency between the device information of the actual state of the device side and the device information received by the management terminal.

[0011] In order to solve the above technical problems, the technical solution adopted by the present invention is: a wireless mobile monitoring device in an intelligent substation includes a second communication device located in an equipment room for obtaining equipment information, and also includes a mobile terminal for operation and maintenance personnel, and a bastion host and a third communication device located in the equipment room, the second communication device is connected to and communicates with the bastion host, the bastion host is connected to and communicates with the third communication device, and the third communication device is connected to and communicates with the mobile terminal.

[0012] A further technical solution is: it also includes an operation and maintenance module, which is a program module, and is used for when the second communication device obtains device information, the second communication device sends the device information to the bastion host, when the bastion host obtains the device information, the bastion host sends the device information to the third communication device, when the third communication device obtains the device information, the third communication device sends the device information, and the mobile terminal obtains the device information sent by the third communication device.

[0013] A further technical solution is: it also includes a management terminal and a first communication device located in the main control room, the management terminal is connected to and communicates with the first communication device, and the first communication device is connected to and communicates with the second communication device; the management terminal is a computer, the first communication device and the second communication device are both station control layer switches, the third communication device is a router, the mobile terminal is a wireless mobile monitoring terminal, and the first communication device is the station control layer switch in the main control room.

[0014] A further technical solution is: the operation and maintenance module is also used for when the second communication device obtains equipment information, the second communication device sends the equipment information to the first communication device, when the first communication device obtains equipment information, the first communication device sends the equipment information to the management terminal, the management terminal obtains the equipment information sent by the first communication device, and the mobile terminal obtains the equipment information on the management terminal.

[0015] A further technical solution is: it also includes a secondary device located in the equipment room for obtaining equipment information, the secondary device is connected to and communicates with a second communication device; the second communication device includes first to third station control layer switches, the bastion host includes first to third bastion hosts, the third communication device is a router, the router includes first to third routers, the first to third station control layer switches, the first to third bastion hosts, and the first to third routers form first to third monitoring units with the same structure, the first monitoring unit includes a first station control layer switch, a first bastion host and a first router connected in sequence, the second monitoring unit includes a second station control layer switch, a second bastion host and a second router connected in sequence, and the third monitoring unit includes a third station control layer switch, a third bastion host and a third router connected in sequence.

[0016] A further technical solution is that the secondary equipment is a protection device, a measurement and control device, a merging unit, an intelligent terminal or a fault recorder, the first station control layer switch is a 220kV station control layer switch, the second station control layer switch is a 110kV station control layer switch, and the third station control layer switch is a 10kV station control layer switch.

[0017] A method for wireless mobile monitoring in a smart substation, based on the above device, includes a judgment step, a mobile terminal obtains device information, compares the device information obtained by the mobile terminal with the device information of the actual state of the secondary device side, and obtains whether the device information of the actual state of the secondary device side is consistent or inconsistent with the device information received on the mobile terminal side.

[0018] A further technical solution is: also based on a management terminal and a first communication device located in the main control room, the management terminal is connected to and communicates with the first communication device, and the first communication device is connected to and communicates with the second communication device; in the judgment step, the mobile terminal obtains the device information sent by the third communication device, or the mobile terminal obtains the device information on the management terminal.

[0019] A further technical solution is: it also includes a step of obtaining information before the judgment step, when the secondary device obtains the device information of the actual state, the secondary device sends the device information of the actual state to the second communication device, when the second communication device obtains the device information, the second communication device sends the device information to the first communication device and the bastion host respectively, when the first communication device obtains the device information, the first communication device sends the device information to the management terminal, and the management terminal obtains the device information sent by the first communication device, when the bastion host obtains the device information, the bastion host sends the device information to the third communication device, when the third communication device obtains the device information, the third communication device sends the device information, and the mobile terminal obtains the device information sent by the third communication device.

[0020] A further technical solution is that: the mobile terminal is connected to and communicates with the management terminal, and the mobile terminal reads and obtains the device information on the management terminal.

[0021] The beneficial effects of adopting the above technical solution are:

[0022] A wireless mobile monitoring device in a smart substation includes a second communication device located in an equipment room for obtaining equipment information, a mobile terminal for operation and maintenance personnel, a bastion host and a third communication device located in the equipment room, wherein the second communication device is connected to and communicates with the bastion host, the bastion host is connected to and communicates with the third communication device, and the third communication device is connected to and communicates with the mobile terminal. This technical solution uses a mobile terminal, a bastion host and a third communication device located in the equipment room, etc. to determine the consistency between the equipment information of the actual state on the equipment side and the equipment information sent, and has high work efficiency.

[0023] A method for wireless mobile monitoring in a smart substation, based on the above device, includes a judgment step, a mobile terminal obtains device information, compares the device information obtained by the mobile terminal with the device information of the actual state of the secondary device side, and obtains whether the device information of the actual state of the secondary device side is consistent with or inconsistent with the device information received by the mobile terminal side. This technical solution, through the above judgment step, etc., realizes the judgment of the consistency between the device information of the actual state of the device side and the sent device information, and has high work efficiency.

[0024] Please refer to the detailed description of the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a principle block diagram of embodiment 1 of the present invention;

[0026] Figure 2 is a topological diagram applied in Example 1 of the present invention;

[0027] Figure 3 is a flow chart of Embodiment 2 of the present invention;

[0028] Figure 4 is a flow chart of Embodiment 3 of the present invention;

[0029] Figure 5 is a screenshot of the operation of Example 3 of the present invention;

[0030] Figure 6 is a data flow diagram of Embodiment 3 of the present invention;

[0031] Figure 7 It is a topological diagram of the prior art. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0034] Embodiment 1:

[0035] like Figure 1 As shown, the present invention discloses a device for wireless mobile monitoring in a smart substation, including a management terminal and a first communication device located in a main control room, a second communication device located in an equipment room for obtaining equipment information, a third communication device and a bastion host, a mobile terminal for operation and maintenance personnel, and an operation and maintenance module, wherein the management terminal is a computer, i.e., a monitoring background, and the first communication device is a station control layer switch in the main control room.

[0036] The second communication device includes the first to third station control layer switches, namely the equipment room station control layer switches, the bastion host includes the first to third bastion hosts, and the third communication device is a router including the first to third routers. The first to third station control layer switches, the first to third bastion hosts, and the first to third routers form the first to third monitoring units with the same structure.

[0037] The management terminal is wiredly connected to the station control layer switch in the main control room and communicates bidirectionally, the station control layer switch in the main control room is wiredly connected to the 220kV station control layer switch and communicates, the station control layer switch in the main control room is wiredly connected to the 110kV station control layer switch and communicates, and the station control layer switch in the main control room is wiredly connected to the 10kV station control layer switch and communicates.

[0038] The first monitoring unit includes a first station control layer switch, a first bastion host and a first router which are wired and connected in sequence, and the first station control layer switch is a 220kV station control layer switch.

[0039] The second monitoring unit includes a second station control layer switch, a second bastion host, and a second router which are wired in sequence, and the second station control layer switch is a 110kV station control layer switch.

[0040] The third monitoring unit includes a third station control layer switch, a third bastion host and a third router which are wired and connected in sequence, and the third station control layer switch is a 10kV station control layer switch.

[0041] The mobile terminal is a wireless mobile monitoring terminal, and the mobile terminal is wirelessly connected to and communicates with the router.

[0042] The mobile terminals include a first mobile terminal and a second mobile terminal.

[0043] The operation and maintenance module is a program module, which is used when the station control layer switch in the equipment room obtains equipment information, the station control layer switch in the equipment room sends the equipment information to the station control layer switch in the main control room and the bastion host respectively; when the bastion host obtains equipment information, the bastion host sends the equipment information to the router; when the router obtains equipment information, the router sends the equipment information, and the second mobile terminal obtains the equipment information sent by the router; when the station control layer switch in the main control room obtains equipment information, the station control layer switch in the main control room sends the equipment information to the management terminal, the management terminal obtains the equipment information sent by the station control layer switch in the main control room, and the first mobile terminal obtains the equipment information on the management terminal.

[0044] Among them, the management terminal, switch, bastion host, router and mobile terminal itself and the corresponding communication connection technology are existing technologies and will not be described in detail here.

[0045] Example 1 Instructions for use:

[0046] like Figure 2 As shown, currently, the secondary equipment located in the equipment room for obtaining equipment information is ready-made, and the secondary equipment is wiredly connected and communicated with the station control layer switch of the substation. In the figure, 1 is a mobile terminal, i.e., a wireless mobile monitoring terminal, 2 is a router, i.e., a wireless transmission medium, and 3 is a bastion host.

[0047] The secondary equipment includes protection devices, measurement and control devices, merging units, intelligent terminals, fault recorders, etc.

[0048] When the station control layer switch in the equipment room obtains the equipment information, it sends the equipment information to the station control layer switch in the main control room and the bastion host respectively. When the bastion host obtains the equipment information, the bastion host sends the equipment information to the router. When the router obtains the equipment information, the router sends the equipment information. When the station control layer switch in the main control room obtains the equipment information, it sends the equipment information to the management terminal. The management terminal obtains the equipment information sent by the station control layer switch in the main control room.

[0049] The operation and maintenance personnel enter the equipment room with a second mobile terminal. The second mobile terminal will be wirelessly connected to the router in the equipment room. The second mobile terminal obtains the equipment information sent by the secondary device. The equipment information is a collection of primary equipment information and secondary equipment information, which comes via the communication line between the secondary equipment and the station control layer switch in the equipment room. The equipment terminal is connected to the wrong line, resulting in inconsistency between the actual equipment information and the equipment information received by the mobile terminal, which in turn causes inconsistency between the equipment information sent to the management terminal by the station control layer switch in the equipment room and the equipment information on the actual status of the secondary equipment side.

[0050] When the operation and maintenance personnel check the second mobile terminal to obtain the device information sent by the secondary device, they compare the device information obtained by the second mobile terminal with the device information of the actual status of the secondary device side to determine whether they are consistent. If they are inconsistent, it can be concluded that the device information sent to the management terminal by the station control layer switch in the equipment room is wrong. There is no need to set up personnel in the main control room to participate in proofreading, which saves manpower and time and improves work efficiency.

[0051] Furthermore, the database parameter connection in the server, i.e. the management terminal, is incorrect, resulting in inconsistency between the device information stored on the server and the actual device information. In order to solve this technical problem, the operation and maintenance personnel use the first mobile terminal to read the device information on the management terminal before going to the site. The monitoring host database, i.e. the database on the management terminal, needs to be copied to the mobile terminal to form another new wireless mobile terminal, i.e. the second mobile terminal. The on-site equipment signal is displayed on the mobile terminal, and the database needs to be backed up to the mobile terminal in advance. This process takes only more than ten minutes, and it is sufficient to back it up in advance. Compare the device information obtained by the second mobile terminal with the device information of the actual status of the secondary equipment side to determine whether they are consistent. If they are inconsistent, it can be concluded that the device information obtained by the management terminal is wrong. There is no need to set up personnel in the main control room to participate in proofreading, which saves manpower and time and improves work efficiency.

[0052] Embodiment 2:

[0053] like Figure 3 As shown, the present invention discloses a method for wireless mobile monitoring in a smart substation, based on the device of embodiment 1, comprising the following steps:

[0054] Get information

[0055] When the secondary device obtains the device information of the actual status, the secondary device sends the device information of the actual status to the station control layer switch in the equipment room. When the station control layer switch in the equipment room obtains the device information, the station control layer switch in the equipment room sends the device information to the station control layer switch in the main control room and the bastion host respectively. When the station control layer switch in the main control room obtains the device information, the station control layer switch in the main control room sends the device information to the management terminal. The management terminal obtains the device information sent by the station control layer switch in the main control room. When the bastion host obtains the device information, the bastion host sends the device information to the router. When the router obtains the device information, the router sends the device information.

[0056] judge

[0057] The first mobile terminal obtains the device information on the management terminal, and the second mobile terminal obtains the device information sent by the router. The operation and maintenance personnel compare the device information obtained by the first mobile terminal with the device information of the actual state on the secondary device side, and obtain whether the device information of the actual state on the secondary device side is consistent with or inconsistent with the device information obtained by the first mobile terminal, that is, the device information obtained by the management terminal; the operation and maintenance personnel compare the device information obtained by the second mobile terminal with the device information of the actual state on the secondary device side, and obtain whether the device information of the actual state on the secondary device side is consistent with or inconsistent with the device information received on the second mobile terminal side.

[0058] Embodiment 3:

[0059] like Figure 4As shown, the present invention discloses a method for wireless mobile monitoring in a smart substation, based on the device of embodiment 1, comprising the following steps:

[0060] Step S101: In the equipment area within the station, the station control layer switch in the equipment room is connected to the bastion host and the wireless transmission medium, namely the router, by wired connection, and the status information of the entire station equipment is sent out wirelessly.

[0061] Step S102: The wireless mobile monitoring terminal is wirelessly connected to the wireless transmission medium via the wireless local area network, and can receive data sent by the wireless transmission medium.

[0062] Step S103: The operation and maintenance personnel log in through the wireless mobile monitoring terminal using the account authorized by the bastion host, so that the user can access the status information of all station devices on the station control layer network in the station in the form of a protocol proxy.

[0063] Step S104: The bastion host performs in-process monitoring and post-event auditing of the access behavior of the operation and maintenance personnel.

[0064] Step S105: When the operation and maintenance personnel illegally access or operate the equipment information in the station, they log out of the account and repeat steps S103 to S104; if the access or operation is normal, jump to the next step.

[0065] Step S106: The operation and maintenance personnel access the equipment status information of the entire station on the wireless mobile monitoring terminal, and perform simple operations such as marking the equipment status information function, thereby realizing the integration and unification of the equipment status information and the monitoring background information in the same space.

[0066] Step S107: After all tasks are completed, the process ends.

[0067] The concept of this application:

[0068] like Figure 7 As shown, the existing technology is that all equipment information in the smart substation is centrally uploaded to the monitoring background through the station control layer network. At the same time, the real-time information status of all equipment can be viewed in the monitoring background. Therefore, the device status information in the equipment area must be consistent with the monitoring background information in the main control room, otherwise it will cause great pressure on the real-time monitoring and on-site operations of the power grid equipment. However, in the signal acceptance stage of the smart substation, the equipment information of the entire substation (several thousand equipment signals) is checked with the monitoring background, and the correctness is guaranteed, which is a lot of work and wastes manpower and time.

[0069] like Figure 6As shown, the present invention implements a wireless mobile monitoring method in a smart substation, which realizes the integration and unification of equipment information and monitoring background information in the equipment area. By checking the wireless mobile monitoring terminal, the equipment information can be compared in real time to confirm the consistency and correctness of the equipment. During the acceptance stage of the substation, human resources and working time are greatly saved, and work efficiency is effectively improved. This method requires a small investment and is easy to promote. In the figure, 1 is a mobile terminal, i.e. a wireless mobile monitoring terminal, 2 is a router, i.e. a wireless transmission medium, and 3 is a bastion host. The mobile terminal, router, and bastion host are newly added equipment, which provide a new monitoring path for the status information of all equipment in the entire station. There are thousands of signals for the status information of all equipment in the entire station, and the listed equipment is only a small number of representative equipment in the station.

[0070] Technical contributions of this application:

[0071] The following steps are involved:

[0072] Step S101: In the equipment area within the station, the central switch of the station control layer is connected to the bastion host and the wireless transmission medium by wire, and the status information of the entire station equipment is sent out wirelessly.

[0073] Step S102: The wireless mobile monitoring terminal is wirelessly connected to the wireless transmission medium via the wireless local area network, and can receive data sent by the wireless transmission medium.

[0074] Step S103: The operation and maintenance personnel log in through the wireless mobile monitoring terminal using the account authorized by the bastion host, so that the user can access the status information of all station devices on the station control layer network in the station in the form of a protocol proxy.

[0075] Step S104: The bastion host performs in-process monitoring and post-event auditing of the access behavior of the operation and maintenance personnel.

[0076] Step S105: When the operation and maintenance personnel illegally access or operate the equipment information in the station, they log out of the account and repeat steps S103 to S104; if the access or operation is normal, jump to the next step.

[0077] Step S106: The operation and maintenance personnel access the equipment status information of the entire station on the wireless mobile monitoring terminal, and perform simple operations such as marking the equipment status information function, thereby realizing the integration and unification of the equipment status information and the monitoring background information in the same space.

[0078] Step S107: After all tasks are completed, the process ends.

[0079] The substation is a large system. The equipment status information of the entire station includes the status information of all equipment in the station, such as primary equipment (circuit breakers, transformers, busbars, current transformers, voltage transformers, etc.), secondary equipment (protection devices, merging units, intelligent terminals, fault recorders, network analyzers, 2M devices, etc.), automation equipment (measurement and control devices, station control layer switches, SDH, routers, etc.), auxiliary control equipment (fire alarm systems, monitoring systems, etc.), and timing equipment.

[0080] In step S101, the equipment area in the station herein refers to the 220kV equipment area, 110kV equipment area, and 10kV equipment area, and the station control layer switch refers to the station control layer switch of the 220kV equipment area, 110kV equipment area, and 10kV equipment area, also known as the interval layer switch. The station control layer central switch refers to the station control layer switch connected to the monitoring background in the main control room. The station control layer switch in the equipment area and the station control layer switch in the main control room both carry the equipment status information data of the entire station.

[0081] At present, all equipment information in the substation can only be viewed in the monitoring background of the main control room, and the equipment information cannot be viewed in the equipment area. Especially in the equipment acceptance stage of the newly invested substation, a large amount of telesignaling work must be carried out between the equipment area and the main control room background, and the telesignaling point-to-point signal must be checked against the monitoring background to see if it is correct. In the substation, the monitoring background is arranged in the main control room, while the primary and secondary equipment in the equipment area and the monitoring background are in different equipment rooms. During the acceptance of the substation, the acceptance personnel can only use communication equipment such as walkie-talkies and mobile phones to confirm the telesignaling signal point-to-point in the equipment area and the monitoring background. Thousands of equipment signals need to be confirmed point-to-point across small rooms. During the use of communication equipment and the dialogue, there are situations such as poor communication signals, signal misunderstandings, and temporary departure of monitoring personnel that affect the progress of the work, greatly increasing the acceptance time. In addition, the signal-to-point work is extremely cumbersome and requires sufficient personnel support. Two people perform signal transmission in the equipment area and two people verify the correctness of the signal in the monitoring background. Therefore, maintenance personnel study this method to reduce on-site working time, save personnel, and improve work efficiency.

[0082] Purpose of this application:

[0083] The purpose is to solve the technical problem that when the operation and maintenance personnel in the smart substation are conducting the substation equipment information acceptance stage, a large amount of equipment information remote signaling work is required, two people are needed in the equipment area, two people are needed in the monitoring background, and communication equipment is used to communicate, resulting in low work efficiency. Now the equipment status information of the entire station and the monitoring background information are integrated and unified in the same space, saving manpower, reducing operation time, and greatly improving work efficiency.

[0084] Technical solution description:

[0085] The existing technical solution is that the equipment information in the equipment area is uploaded to the monitoring background of the main control room through the station control layer network. The actual status information of the equipment can be viewed in the equipment area, but it cannot be determined whether the equipment information is correctly uploaded to the monitoring background of the main control room, and the equipment information and the monitoring background information cannot be unified in space. The only way is for the operation and maintenance personnel in the equipment area to communicate with the operation and maintenance personnel in the main control room, or for the monitoring background personnel to go to the site to verify whether the equipment information is correct.

[0086] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a wireless mobile monitoring method in a smart substation, so as to integrate the equipment information and the monitoring background information in the same space.

[0087] This method includes connecting the bastion host, wireless transmission medium and wireless mobile terminal equipment of the station control layer network in the equipment area, connecting the station control layer switch with the bastion host and wireless transmission medium through a network cable; the wireless mobile monitoring terminal is connected to the wireless transmission medium in real time through a wireless local area network, thereby achieving secure access to the station control layer network. The bastion host and the wireless transmission medium are arranged in the panel cabinet where the station control layer network switch is located in the equipment room of each voltage level of the smart substation, one in each of the 220kV equipment room, 110kV equipment room and 10kV equipment room; the wireless mobile monitoring terminal is arranged in the main control room, and is placed in the same position as the monitoring background. The number of terminals is set according to needs, generally 1 to 2. At the beginning of the on-site work, the administrator authorizes specific operation and maintenance personnel, and the operation and maintenance personnel can use this terminal to work.

[0088] like Figure 5 As shown in the figure, the bastion host is in the substation-specific station control layer network environment, protecting the network and data from intrusion and destruction from external and internal users. The administrator cuts off the direct access of mobile terminals to the station control layer network through the bastion host's pre-authorization, in-process monitoring, and post-audit functions, allowing users to access the wireless mobile terminal and the station control layer network through protocol proxy. The bastion host uses equipment that supports a series of authorized accounts such as Linux, databases, network equipment, and security equipment.

[0089] The wireless transmission medium is connected to the wireless mobile monitoring terminal through wireless signals, supporting wireless video monitoring and dynamic image transmission, so that the data information in the station control layer network can be transmitted in real time. This wireless transmission medium supports VPN security tunnel function. It has strong anti-interference ability and stable transmission. It supports Linux and Windows operating systems, has strong real-time performance, and uses industrial-grade components. In addition, the power module supports built-in power reverse protection and overvoltage and overcurrent protection.

[0090] Wireless mobile monitoring terminal supports mobile terminals using Linux (if it is difficult to achieve, Windows can be considered) security system. By logging in with authorized account information, the substation control layer network can be accessed. The wireless mobile monitoring terminal has the same functions as the monitoring background in the station, and has the functions of real-time viewing of the status information and accident records of all equipment in the station, but it cannot have the function of changing the configuration of the monitoring background device and the database (because the configuration, database and other information in the substation can be changed in the monitoring background, the main function of this terminal is to view and record signals, and this function is not required. Having too many functions can easily cause network security accidents). This wireless mobile monitoring terminal supports signal marking function, especially during the acceptance stage of the substation, there will be a large number of equipment signals for verification. In the period of frequent error signal problems, the error signals found are simply marked, and the acceptance work is carried out to a small stage to facilitate unified changes.

[0091] Network cable: It is used to connect the network switch, bastion host and wireless transmission medium at the station control layer. Engineering-grade Category 6 network cables should be used, which have small transmission signal attenuation, less crosstalk, smaller delay error, and a transmission rate higher than 1Gbps.

[0092] After this application was run confidentially for a period of time, the on-site technicians reported that the benefits were:

[0093] 1. In the equipment area of ​​the smart substation, this method can be used to directly check whether the equipment information is consistent with the background information, and the integration of equipment information and monitoring background information is realized in space.

[0094] 2. During the pre-test and troubleshooting of smart substations, the operation and maintenance personnel can confirm the operation in the equipment area after completing the operation, without having to go to the monitoring background of the main control room to confirm the operation, which greatly saves working time.

[0095] 3. In the signal acceptance work of smart substation, the conventional practice is that two people on site transmit equipment information and two people confirm the signal in the background. The use of this method will not need to arrange personnel in the main control room, which greatly saves human resources. A large number of signal point-to-point work does not need to communicate with communication equipment, and the error signal can be marked. It is no longer necessary to modify one error signal, but to modify it uniformly. This method greatly saves operation time and improves work efficiency.

[0096] 4. This method adopts an authorized access mechanism for operation and maintenance personnel, which greatly improves work efficiency while ensuring network security within the substation.

[0097] At present, the technical solution of the present invention has been put into pilot production, that is, a small-scale test of the product before large-scale mass production; after the pilot production was completed, a user usage survey was carried out in a small range, and the survey results showed that user satisfaction was high; now preparations have begun for the formal production of the product for industrialization (including intellectual property risk warning survey).

Claims

1. A wireless mobile monitoring device in a smart substation, comprising a second communication device located in an equipment room for obtaining equipment information, characterized in that: It also includes a mobile terminal for operation and maintenance personnel, a bastion host and a third communication device located in the equipment room, the second communication device is connected to and communicates with the bastion host, the bastion host is connected to and communicates with the third communication device, and the third communication device is connected to and communicates with the mobile terminal; it also includes an operation and maintenance module, which is a program module for when the second communication device obtains equipment information, the second communication device sends the equipment information to the bastion host, when the bastion host obtains equipment information, the bastion host sends the equipment information to the third communication device, when the third communication device obtains equipment information, the third communication device sends the equipment information, and the mobile terminal obtains the equipment information sent by the third communication device; it also includes a management terminal and a first communication device located in the main control room. The device is connected to and communicates with the first communication device, and the first communication device is connected to and communicates with the second communication device; the management terminal is a computer, the first communication device and the second communication device are both station control layer switches, the third communication device is a router, the mobile terminal is a wireless mobile monitoring terminal, and the first communication device is the station control layer switch in the main control room; the operation and maintenance module is also used for when the second communication device obtains device information, the second communication device sends the device information to the first communication device, when the first communication device obtains device information, the first communication device sends the device information to the management terminal, the management terminal obtains the device information sent by the first communication device, and the mobile terminal obtains the device information on the management terminal.

2. The device for wireless mobile monitoring in a smart substation according to claim 1, characterized in that: It also includes a secondary device located in the equipment room for obtaining equipment information, the secondary device is connected to and communicates with the second communication device; the second communication device includes first to third station control layer switches, the bastion host includes first to third bastion hosts, the third communication device is a router, the router includes first to third routers, the first to third station control layer switches, the first to third bastion hosts, and the first to third routers form first to third monitoring units with the same structure, the first monitoring unit includes the first station control layer switch, the first bastion host and the first router connected in sequence, the second monitoring unit includes the second station control layer switch, the second bastion host and the second router connected in sequence, and the third monitoring unit includes the third station control layer switch, the third bastion host and the third router connected in sequence.

3. The device for wireless mobile monitoring in a smart substation according to claim 2, characterized in that: The secondary equipment is a protection device, a measurement and control device, a merging unit, an intelligent terminal or a fault recorder. The first station control layer switch is a 220kV station control layer switch, the second station control layer switch is a 110kV station control layer switch, and the third station control layer switch is a 10kV station control layer switch.

4. A method for wireless mobile monitoring in a smart substation, characterized in that: A device for wireless mobile monitoring in a smart substation based on claim 1 includes a judging step, in which a mobile terminal obtains device information, compares the device information obtained by the mobile terminal with the device information of the actual state on the secondary device side, and obtains whether the device information of the actual state on the secondary device side is consistent with or inconsistent with the device information received on the mobile terminal side.

5. The method for wireless mobile monitoring in a smart substation according to claim 4, characterized in that: Also based on a management terminal and a first communication device located in the main control room, the management terminal is connected to and communicates with the first communication device, and the first communication device is connected to and communicates with the second communication device; In the judging step, the mobile terminal obtains the device information sent by the third communication device, or the mobile terminal obtains the device information on the management terminal.

6. The method for wireless mobile monitoring in a smart substation according to claim 4, characterized in that: It also includes a step of obtaining information before the judging step, when the secondary device obtains the device information of the actual state, the secondary device sends the device information of the actual state to the second communication device, when the second communication device obtains the device information, the second communication device sends the device information to the first communication device and the bastion host respectively, when the first communication device obtains the device information, the first communication device sends the device information to the management terminal, and the management terminal obtains the device information sent by the first communication device, when the bastion host obtains the device information, the bastion host sends the device information to the third communication device, when the third communication device obtains the device information, the third communication device sends the device information, and the mobile terminal obtains the device information sent by the third communication device.

7. The method for wireless mobile monitoring in a smart substation according to claim 6, characterized in that: The mobile terminal is connected to and communicates with the management terminal, and the mobile terminal reads and obtains the device information on the management terminal.

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