Network-level visual grounding system

Abstract

The invention relates to the field of rail transit, and discloses a line network level visual grounding system. The system comprises a network-level grounding subsystem and at least two line-level grounding subsystems, the network-level grounding subsystem is connected with each line-level grounding subsystem through a main and standby communication network, and the network-level grounding subsystem collects switching-on and switching-off state data and alarm data of all station grounding devices on each track line. Therefore, cross-line locking control is realized, and the potential safety hazard that data intercommunication locking cannot be realized in the prior art is solved.

Description

Technical Field

[0001] This application relates to the technical field of rail transit power safety, and particularly to a network-level visual grounding system. Background Art

[0002] As one of the current main means of transportation, the real-time control and maintenance of rail transit are important guarantees for ensuring the safe operation of rail transit. At present, it is mainly through setting up an OCC (Operation Control Center) in each line for management and monitoring to achieve real-time scheduling and maintenance. However, rail transit in the city consists of multiple rail lines with certain intersections, and the current self-control method of a single rail line cannot achieve information interconnection between different lines, resulting in the inability to achieve intercommunication scheduling when abnormalities occur at intersection stations. Especially for stations with intersections, separate power on / off management cannot ensure the safe control of grounding. Summary of the Invention

[0003] This application provides a network-level visual grounding system, which realizes centralized control of multiple rail lines by setting up a network-level control center, ensuring the safety of power on / off interlock control at intersection stations.

[0004] This application provides a network-level visual grounding system, which is applied to coordinate the power on / off of grounding devices of multiple rail lines, and includes: a network-level grounding subsystem and at least two line-level grounding subsystems, and the network-level grounding subsystem is connected to each line-level grounding subsystem through a primary and backup communication network;

[0005] Each line-level grounding subsystem is correspondingly connected to a rail line, and is used to collect the switch-on / switch-off status data and alarm data of grounding devices at all stations on the rail line, and perform locking operations on the grounding devices based on the switch-on / switch-off status data and alarm data of the grounding devices;

[0006] The network-level grounding subsystem includes:

[0007] A network-level control center, which is used to collect the switch-on / switch-off status data and alarm data of grounding devices at all stations on each rail line, and provide a communication interface;

[0008] A cross-line locking module connected to the network-level control center, which is used to perform soft locking or hard locking operations according to the switch-on / switch-off status data and alarm data of cross-line grounding devices at each station.

[0009] In a feasible embodiment, the cross-line locking module includes:

[0010] The soft interlock control unit is used to perform interlock operations across track lines and across sites by means of logical formula association based on the opening / closing status data and alarm data of the earthing devices at all stations on each track line collected by the network-level control center;

[0011] The hard interlock control unit is used to perform interlock operations across track lines and across sites by means of hard wiring based on the opening / closing status data and alarm data of the earthing devices at all stations on each track line collected by the network-level control center.

[0012] In a feasible implementation manner, the soft interlock control unit is specifically used for:

[0013] When power is supplied to the target site, determine the associated sites of the target site, and judge whether the status of the earthing cabinet of the target site and the status of the online knife switch of the associated site meet the logical formula relationship for power supply; perform a power supply interlock operation on the target site based on the judgment result;

[0014] When power is cut off from the target site, determine the associated sites of the target site, and judge whether the status of the online knife switch of the target site and the status of the earthing cabinet of the associated site meet the logical formula relationship for power cut-off; perform a power cut-off interlock control operation on the target site based on the judgment result;

[0015] The associated sites include the adjacent sites on the track line where the target site is located.

[0016] In a feasible implementation manner, the hard interlock control unit is specifically used for:

[0017] When power is supplied to the target site, judge whether the set of the earthing cabinet of the target site and the earthing interlock signal and the earthing cabinet remote interlock device signal of the remote associated site meet the hard interlock power supply condition; perform a power supply interlock operation on the target site based on the judgment result;

[0018] When power is cut off from the target site, judge whether the set of the earthing cabinet of the target site and the earthing interlock signal and the earthing cabinet remote interlock device signal of the remote associated site meet the hard interlock power cut-off condition; perform a power cut-off interlock operation on the target site based on the judgment result.

[0019] In a feasible implementation manner, the network-level control center includes:

[0020] The communication management machine is used to provide a communication interface to establish a communication connection with each of the line-level earthing subsystems;

[0021] The data monitoring module connected to the communication management machine is used to collect the opening / closing status data and alarm data of the earthing devices at all stations on each track line;

[0022] A fault warning module connected to the communication management machine and the cross-line locking module, which is used to give a warning prompt based on the result of the locking operation.

[0023] In a feasible implementation manner, the communication management machine includes a main communication management machine and a standby communication management machine;

[0024] The main communication management machine is used to communicate and connect with each of the line-level grounding subsystems through a first communication channel;

[0025] The standby communication management machine is used to communicate and connect with each of the line-level grounding subsystems through a second communication channel;

[0026] When the first communication channel is abnormal, the standby communication management machine is started to communicate and connect with each of the line-level grounding subsystems through the second communication channel; when the second communication channel is abnormal, the main communication management machine is started to communicate and connect with each of the line-level grounding subsystems through the first communication channel.

[0027] In a feasible implementation manner, the data monitoring module includes:

[0028] An equipment monitoring unit, which is connected to the main communication management machine and the standby communication management machine, and is used to read the equipment status and equipment information of all sites from the communication machines in each of the line-level grounding subsystems through the first communication channel or the second communication channel;

[0029] A video monitoring module, which is connected to the video network in each of the line-level grounding subsystems through a video network, and is used to read the video information of the corresponding site.

[0030] In a feasible implementation manner, a four-level permission control method is adopted between each grounding device, each site, each track line and the network-level grounding subsystem to perform the locking and remote control of the grounding devices on all track lines.

[0031] In a feasible implementation manner, the four-level permission control method is to realize the unique operation permission by gradually delegating and recovering permissions in the sorting order of the network-level control center, track line, site, and grounding device.

[0032] In a feasible implementation manner, the network-level grounding subsystem and each of the line-level grounding subsystems are set in a data stream parallel manner.

[0033] In the technical solution provided by this application, the system includes a network-level grounding subsystem and at least two line-level grounding sub-systems. The network-level grounding subsystem is connected to each of the line-level grounding sub-systems through a primary and standby communication network. The network-level grounding subsystem collects the switching status data and alarm data of the grounding devices at all stations on each track line to achieve cross-line locking control, solving the potential safety hazard of inability to achieve data intercommunication and locking in the prior art.

[0034] Furthermore, by setting up the network-level grounding subsystem for unified management, anti-misoperation judgment, and remote control maintenance, such a method not only realizes the integration of data resources and real-time centralized display of data of the visual grounding system in each track line, but also breaks the information barrier between existing systems, realizes the safety control of power supply operations for the entire line network, and the centralized monitoring of the operation video images of electrical equipment throughout the line, improving the overall operation and maintenance efficiency of the track system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of an embodiment of the line network-level visual grounding system in this application;

[0036] Figure 2 It is a schematic diagram of another embodiment of the line network-level visual grounding system in this application;

[0037] Figure 3 It is a schematic diagram of the existence of cross-station connection equipment in this application;

[0038] Figure 4 It is a schematic diagram of the track line with soft locking in this application;

[0039] Figure 5 It is a schematic diagram of the station principle of the track line with hard locking in this application;

[0040] Figure 6 It is a schematic diagram of the principle of the hard locking device in this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] This application realizes the centralized management of multiple track lines by setting up a network-level control center to uniformly manage the grounding devices and video devices at the stations of each track line, so as to improve the operation and maintenance efficiency and the expansibility of the track network.

[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "comprising" or "having" and any variation thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0043] For ease of understanding, the structure of the rail transit visualization grounding system provided by this application will be described in detail below. Please refer to Figure 1 , an embodiment of the network-level visualization grounding system provided by this application. This system is mainly used to coordinate and manage multiple rail lines, and specifically includes: a network-level grounding subsystem 110 and at least two line-level grounding subsystems 120. The network-level grounding subsystem 110 is connected to each of the line-level grounding subsystems 120 through a primary and standby communication network.

[0044] Each of the line-level grounding subsystems 120 is correspondingly connected to a rail line, and is used to collect the closing and opening status data and alarm data of all the grounding devices at the stations on the rail line, and perform locking operations on the grounding devices based on the closing and opening status data and alarm data of the grounding devices;

[0045] The network-level grounding subsystem 110 includes:

[0046] A network-level control center 111, which is used to collect the closing and opening status data and alarm data of all the grounding devices at the stations on each of the rail lines, and provide a communication interface;

[0047] A cross-line locking module 112 connected to the network-level control center 111, which is used to perform soft locking or hard locking operations according to the closing and opening status data and alarm data of the cross-line grounding devices at each station.

[0048] It can be understood that the network-level control center 111 is set to have the function of information aggregation and centralized control. Based on the network-level control center 111, the information island effect formed by the dispersion of the grounding system information of each rail line in the city can be solved. That is, the network-level control center 111 can collect information and form information sharing, which provides a basis for fault analysis, unified dispatching of maintenance, and big data analysis. It can realize operations such as status monitoring, video monitoring, and remote control of the devices on each connected line, centralized management, statistics, and query of all data, and can realize functions such as safety control of the power supply operation of the entire line network.

[0049] Preferably, the network-level control center 111 is composed of a video workstation, a misoperation prevention data server, a misoperation prevention workstation, etc. Driven by data applications in the big data operation environment, it realizes the functions of dispatching personnel to monitor, coordinate, manage, and conduct emergency command for the operation of the entire urban rail transit network in the city. By coordinating the operation of each line, it gives play to the overall operation capacity of the network, enabling each line and the rail transit network to operate efficiently, economically, and orderly. By building a big data platform, it provides real-time data access for systems such as integrated monitoring, provides real-time analysis and processing capabilities, and provides the results to the upper-layer emergency system and the large-screen visualization system.

[0050] Each of the line-level grounding subsystems 120 is correspondingly connected to a rail line, and is used to collect the opening and closing status data and alarm data of the grounding devices at all stations on the rail line, and perform locking operations on the grounding devices based on the opening and closing status data and alarm data of the grounding devices.

[0051] In this embodiment, each of the line-level grounding subsystems 120 is correspondingly connected to a rail line, that is, one line-level grounding subsystem 120 is provided on each rail line, which is used to collect the opening and closing status data and alarm data of the grounding devices at all stations on the rail line. In addition, it can also collect device information and video information.

[0052] The network-level control center 111 is actually a line network command center with communication functions, data monitoring functions, misoperation prevention functions, and early warning functions. The network-level control center 111 includes:

[0053] A communication management machine 1111, which is used to provide a communication interface and establish a communication connection with each of the line-level grounding subsystems 120;

[0054] A data monitoring module 1112 connected to the communication management machine 1111, which is used to collect the opening and closing status data and alarm data of the grounding devices at all stations on each rail line;

[0055] A fault early warning module 1113 connected to the communication management machine 1111 and the cross-line locking module 112, which is used to give early warning prompts based on the results of the locking operation.

[0056] It is also the communication management machine 1111, which is used to provide a communication interface and establish a communication connection with each of the line-level grounding subsystems 120; that is, it provides a common interface for external systems, and uses one interface to provide communication connections to external systems such as ISCS or PSCADA, greatly saving network resources, hardware devices, and system interface overhead.

[0057] The data monitoring module 1112 is used to obtain the monitoring data of all stations on each track line under each line-level grounding subsystem 120, such as the opening and closing status data and alarm data of grounding devices, device information, and video information; by integrating the grounding subsystems of all track lines through this data monitoring module 1112, that is, collecting the status information of visual grounding devices at all stations on each track line, including information such as remote signaling, remote measurement, and remote control. At the same time, it also collects the operation information of all devices, provides various historical operation records uniformly, and facilitates the centralized management, statistics, and query of all data by dispatching operators. It should be noted that the network-level control center 111 directly obtains the monitoring data of the station through the communication management machine 1111 using the communication network connected to the station.

[0058] The fault warning module 1113 is actually used to implement the unified comprehensive emergency response and coordination of the entire network. Around local emergencies, it screens the on-site monitoring videos, correlates the device status and other information of relevant lines, and timely provides alarms and solution suggestions. Intuitively presents the information such as pictures and data related to the emergency response, improves the emergency response efficiency, minimizes the impact caused by emergencies and local faults, shortens the scientific decision-making time, prevents accidents from occurring, reduces the accident rate, and improves the network operation management level and service level.

[0059] In another feasible implementation, the network-level control center 111 further includes: an anti-error module 1113 connected to the communication management machine 1111 and the data monitoring module 1112, which is used to perform anti-error judgment based on the monitoring data of all stations on each track line.

[0060] It should be noted that the communication connection between the network-level control center 111 and the line-level grounding subsystem 120 is realized through the communication management machine 1111. At least two communication management machines 1111 are provided on the network-level control center 111, and one of the at least two communication management machines 1111 is set as the main communication management machine, and the others are set as standby communication management machines.

[0061] Specifically, the communication management machine 1111 includes a main communication management machine 1111a and a standby communication management machine 1111b;

[0062] The main communication management machine 1111a is used to communicate with each line-level grounding subsystem 120 through the first communication channel;

[0063] The standby communication management machine 1111b is used to communicate with each line-level grounding subsystem 120 through the second communication channel;

[0064] When an abnormality occurs in the first communication channel, the standby communication management machine 1111b is started to communicate with each of the line-level grounding subsystems 120 through the second communication channel; when an abnormality occurs in the second communication channel, the main communication management machine 1111a is started to communicate with each of the line-level grounding subsystems 120 through the first communication channel.

[0065] As Figure 2 shown, two communication channels are provided on the network-level control center 111, namely communication network A and communication network B. Communication network A and communication network B are mutually primary and standby networks. Corresponding communication network A' and communication network B' are also set on the line-level grounding subsystem 120. The main communication machine 1111a is connected to communication network A and communication network A', and the standby communication machine 1111b is connected to communication network B and communication network B'. The network-level control center 111 or the line-level grounding subsystem 120 detects whether there is an abnormality in communication network A and communication network B. If communication network A is abnormal, the communication is switched to communication network B, and vice versa, the communication is switched to communication network A.

[0066] In this embodiment, the system is composed of one network-level grounding subsystem and at least two line-level grounding subsystems. Each line-level grounding subsystem corresponds to a track line. The monitoring data of the track lines collected by each line-level grounding subsystem is synchronized to the network-level grounding subsystem, and is uniformly managed, error-preventing judgment and remotely controlled and maintained by the network-level grounding subsystem. Such a method not only realizes the integration of data resources of the visual grounding system in each track line and the real-time centralized display of data, but also breaks the information barrier between existing systems, realizes the safety control of power supply operations in the whole network and the centralized monitoring of the operation video images of electrical equipment in the whole line, and improves the overall operation and maintenance efficiency of the track system.

[0067] Please refer to Figure 2 , another embodiment of the visual grounding system for rail transit in this application. The system includes: a network-level grounding subsystem 110 and at least two line-level grounding subsystems 120, and the network-level grounding subsystem 110 is connected to each of the line-level grounding subsystems 120 through a primary and standby communication network;

[0068] Each of the line-level grounding subsystems 120 is correspondingly connected to a track line, and is used for collecting the switching-on and switching-off state data and alarm data of the grounding equipment at all stations on the track line, and locking the operation of the grounding equipment based on the switching-on and switching-off state data and alarm data of the grounding equipment;

[0069] The network-level grounding subsystem 110 includes:

[0070] A network-level control center 111, which is used for collecting the switching-on and switching-off state data and alarm data of the grounding equipment at all stations on each of the track lines, and providing a communication interface;

[0071] The cross-line locking module 112 connected to the network-level control center 111 is used to perform soft locking or hard locking operations based on the opening / closing status data and alarm data of the grounding devices with cross-line in each site.

[0072] Optionally, the network-level control center 111 includes:

[0073] A communication management machine 1111, which is used to provide a communication interface and establish a communication connection with each of the line-level grounding subsystems 120;

[0074] A data monitoring module 1112 connected to the communication management machine 111, which is used to collect the opening / closing status data and alarm data of the grounding devices at all sites on each track line;

[0075] A fault warning module 1113 connected to the communication management machine 1111 and the cross-line locking module 112, which is used to give a warning prompt based on the result of the locking operation.

[0076] Optionally, the data monitoring subsystem 1112 includes:

[0077] An equipment monitoring unit, which is connected to the main communication management machine and the standby communication management machine, and is used to read the equipment status and equipment information of all sites from the communication machines in each of the line-level grounding subsystems through the first communication channel or the second communication channel;

[0078] A video monitoring unit, which is connected to the video network in each of the line-level grounding subsystems through the video network, and is used to read the video information of the corresponding site.

[0079] As Figure 2 shown, the equipment monitoring unit can be composed of two servers, such as server A and server B in the figure. Server A is correspondingly connected to communication network A, and server B is correspondingly connected to communication network B. In addition, the two servers can also be servers set in a master-slave relationship. When the communication management machine 1111 receives the equipment status, equipment information, etc. reported by each line-level grounding subsystem 120, they will be recorded in the two servers.

[0080] Furthermore, in addition to setting two communication networks on the network-level control center 111, a video network is also provided for separately transmitting video information. As Figure 2 shown in, the video workstation is the video monitoring module, which is connected to the video network. At the same time, the video network in each line-level grounding subsystem 120 is connected to the corresponding monitoring device, and then the video networks of the network-level control center 111 and each line-level grounding subsystem 120 are connected to each other. In another implementation manner, communication network A, communication network B, and the video network can all be connected to the cloud platform to achieve data sharing.

[0081] In another feasible implementation, the network-level control center 111 further includes: an anti-error module 1113 connected to the communication management machine 1111 and the data monitoring module 1112, configured to perform anti-error judgment based on the monitoring data of all stations on each track line.

[0082] In this embodiment, the anti-error module 1113 includes:

[0083] A big data platform connected to the data monitoring module 1112, configured to record the device status and device operation information of the grounding devices at all stations on each track line read by the data monitoring subsystem.

[0084] To further simplify the structure in the network-level control center 111, the big data platform and the device monitoring unit can be combined and replaced by server A and server B, or a cloud platform can be used.

[0085] In this embodiment, the cross-line locking module 112 includes: a soft locking control unit 1121 and a hard locking control unit 1122. Through these two units, cross-line soft locking and hard locking are achieved. As Figure 3 shown, when there are two subway lines sharing a connection device, that is, there is a cross-line connection device, which belongs to both subway line A and subway line B. Soft locking and hard locking operations can be realized in the visual grounding system of the network-level control center 111. Before this, in each line's OCC, the systems between subway lines were isolated and could not form effective inter-line and inter-station locking. By implementing unified cross-line and cross-station soft locking on this network-level control center 111 and hard locking through hard connection lines. The soft locking of the cross-station opening line visual grounding devices between multiple subway lines can be easily realized on this network-level control center 111.

[0086] The soft locking control unit 1121 is configured to perform cross-track-line and cross-station locking operations in a manner associated by logical formulas based on the closing and opening status data and alarm data of the grounding devices at all stations on each track line collected by the network-level control center 111.

[0087] It should be noted that the soft interlock control unit 1121 is specifically configured to: when powering on a target site, determine the associated sites of the target site, and judge whether the states of the earthing cabinet of the target site and the line disconnectors of the associated sites satisfy the logical formula relationship for power transmission; based on the judgment result, perform interlock control on power transmission to the target site; when powering off the target site, determine the associated sites of the target site, and judge whether the states of the line disconnectors of the target site and the earthing cabinets of the associated sites satisfy the logical formula relationship for power outage; based on the judgment result, perform interlock control on power outage to the target site; the associated sites include adjacent sites on the track line where the target site is located.

[0088] Taking the above-mentioned cross-station connection equipment (Site 2 on Line 1#) as an example, as Figure 4 shown, if power is to be supplied to it, its logical formula must be configured as:

[0089] Logical formula for JDG12 closed: JDG11 = open && JDG12 = open && JDG13 = open && JDG21 = open && JDG23 = open.

[0090] When performing the logic (earthing) for power outage on it, its logical formula must be configured as:

[0091] Logical formula for JDG12 closed: KG11 = open && KG12 = open && KG13 = open && KG21 = open && KG23 = open.

[0092] If the logical formula is met, the soft interlock check passes.

[0093] In this embodiment, the hard interlock control unit 1122 is configured to perform interlock operations across track lines and sites in a hard-wired manner based on the on / off status data and alarm data of the earthing equipment of all stations on each track line collected by the network-level control center 111.

[0094] It should be noted that the hard interlock control unit 1122 is specifically configured to: when powering on a target site, judge whether the set of the earthing cabinet of the target site and the earthing interlock signals and the earthing cabinet remote interlock device signals of the remote associated sites satisfies the hard interlock power transmission condition; based on the judgment result, perform interlock control on power transmission to the target site; when powering off the target site, judge whether the set of the earthing cabinet of the target site and the earthing interlock signals and the earthing cabinet remote interlock device signals of the remote associated sites satisfies the hard interlock power outage condition; based on the judgment result, perform interlock control on power outage to the target site.

[0095] In practical applications, the control of hard interlocking is mainly used to implement the anti-error interlocking control of each site itself. This anti-error interlocking control is achieved through actual communication wiring, that is, all associated stations synchronize the states of grounding equipment and online disconnecting switches by means of actual line routing. For example, Figure 5 and 6 As shown, each station has its own hard interlocking device, which collects the states of KG and JDG at this station and remote hard interlocking signals. In the above figure, for the connection equipment (equipment shared by multiple lines), namely KG12, JG12, and JDG12, the switch interlocking signals of KG11, KG13, KG21, KG23 at remote stations and local KG12 need to be collected, and the grounding interlocking signals of JDG11, JDG13, JDG21, JDG23 at remote stations and local JDG12 also need to be collected. If the target station needs to close and energize the online switch, it is necessary to judge the power-on hard interlocking signal. The hard interlocking signal is the collection of the grounding interlocking signals of the grounding cabinet at the target station and remote associations (such as adjacent associated stations) and the grounding cabinet remote interlocking device signals, that is, all signals in the collection meet the AND logic condition. Similarly, if the target station needs to open the grounding switch for power outage, it is necessary to judge the power-off hard interlocking signal. The hard interlocking signal is the collection of the interlocking signals of the switch at the target station and remote online disconnecting switches and the local switch remote interlocking device, that is, all signals in the collection meet the AND logic condition.

[0096] It should be noted that the soft interlocking and hard interlocking interact with each other to provide double safety guarantees. When under a network attack, even if the grounding disconnecting switch and online disconnecting switch receive closing and opening attack commands, they cannot execute the remote control attack commands without unlocking the remote interlocking device. When an abnormally issued wrong operation command is received, the hard interlocking judgment fails to meet the safety conditions, and the remote control operation cannot be executed either.

[0097] Figure 6 The remote interlocking device in is a normally closed signal switch. Only when it outputs an "open" signal can the power supply for the states of switches and disconnecting switches be connected, and then the remote control operation can be carried out. After the operation is completed, it returns to the normally closed state, and any remote control command cannot take effect.

[0098] Based on the technology of soft and hard interlocking, at the same rail transit station where different lines converge, the same substation can be used for power supply, eliminating the need for multiple lines to repeat the construction of substations at this station. This greatly saves the financial, human, and material resources.

[0099] In this embodiment, in order to achieve flexible and efficient permission management and operation control, a four-level permission control method is adopted among each grounding device, each site, each track line, and the network-level grounding subsystem to perform the locking and remote control of the grounding devices on all track lines. The four-level permission control method realizes the unique operation permission by gradually delegating and recovering permissions in the order of network-level control center, track line, site, and grounding device.

[0100] At the network-level control center 111, the locking and remote control of the visual grounding system devices throughout the line can be realized. When problems occur in both the primary and backup network remote controls of the network-level control center 111, the OCCs of each line are enabled for remote control operations. By analogy, when faults occur in the network or system on the network-level control center 111 or the line-level grounding subsystem 120, remote control operations can also be realized at the station level. In the most extreme case, when all networks and systems are paralyzed, local operations of the visual grounding devices can still be performed. The control permissions of the 4 levels have a strict control process. From the network-level control center 111 to the local operation at the station level, the operation permission is unique. Only the operation permission of one level is effective at any time, realizing the gradual delegation and recovery of permissions to ensure the unique operation permission. Basically, thanks to the robust backup network of the network-level control center 111, remote control operations can basically be completed at the network-level control center 111 level. The high degree of information intensification makes the visual grounding maintenance operation of urban rail transit more intelligent, saving a lot of labor and time costs.

[0101] In this embodiment, the network-level grounding subsystem 110 and each line-level grounding subsystem 120 are set in a data stream parallel manner. Specifically, there is a hierarchical relationship between the network-level grounding subsystem 110 and the line-level grounding subsystem 120 in terms of operation. Generally, the visual grounding devices of each line and each station are operated and monitored on the network-level grounding subsystem 110. When abnormal conditions occur in the network-level grounding subsystem 110 and operations cannot be performed, the operations can be delegated to each line-level grounding subsystem 120. The network-level grounding subsystem 110 and the line-level grounding subsystem 120 are in a parallel relationship in terms of data stream. The network-level grounding subsystem 110 has a data acquisition and operation architecture independent of the line-level grounding subsystem 120, without mutual influence.

[0102] Through the implementation of the system provided in this embodiment, by

[0103] unifying and centrally controlling the grounding devices and online knife switches of the track lines under each line-level control center, while ensuring the safety of remote control operations, the safety, reliability, and timeliness of the entire operation process are increased, the efficiency of on-site operation and maintenance is improved, and labor and time costs are saved. At the same time, the problem of information islands for each line is also solved.

[0104] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A network-level visual grounding system, used to coordinate and manage the power outage of multi-track line grounding equipment, characterized in that: include: A network-level grounding subsystem and at least two line-level grounding subsystems, wherein the network-level grounding subsystem is connected to each of the line-level grounding subsystems via a primary and standby communication network; Each of the line-level grounding subsystems is connected to a corresponding rail line, and is used to collect the closing and opening status data and alarm data of the grounding equipment at all stations on the rail line, and perform a locking operation on the grounding equipment based on the closing and opening status data and alarm data of the grounding equipment; The grid-level grounding subsystem includes: A network-level control center, used to collect the closing and opening status data and alarm data of the grounding equipment at all stations on each of the rail lines, and to provide a communication interface; The cross-line locking module connected to the network-level control center is used to perform soft locking or hard locking operations according to the closing and opening status data and alarm data of the cross-line grounding equipment in each site.

2. The network-level visualized grounding system according to claim 1, characterized in that: The cross-line locking module comprises: A soft locking control unit, used for performing locking operations across track lines and stations by means of logical formula association based on the closing and opening status data and alarm data of the grounding equipment of all stations on each track line collected by the network-level control center; The hard locking control unit is used to perform locking operations across track lines and stations through hard wiring based on the closing and opening status data and alarm data of the grounding equipment of all stations on each track line collected by the network-level control center.

3. The network-level visualized grounding system according to claim 2, characterized in that: The soft locking control unit is specifically used for: When power is supplied to a target site, an associated site of the target site is determined, and it is judged whether the state of the grounding cabinet of the target site and the state of the on-line switch of the associated site satisfy the logic formula relationship of power supply; Based on the result of the determination, a blocking operation is performed on the target site for power transmission; When a target site is powered off, the associated sites of the target site are determined, and it is judged whether the state of the on-line switch of the target site and the state of the grounding cabinet of the associated site satisfy the logic formula relationship of the power outage; based on the result of the judgment, the locking control operation of the power outage is performed on the target site; The associated sites include adjacent sites of the track line where the target site is located.

4. The network-level visualized grounding system according to claim 3, characterized in that: The hard lock control unit is specifically used for: When power is supplied to the target site, it is determined whether the combination of the grounding lock signal of the grounding cabinet of the target site and the grounding lock signal of the remote associated site and the grounding cabinet remote lock device signal meets the hard lock power supply condition; based on the determination result, the power supply locking operation is performed on the target site; When a power outage is performed on a target site, determine whether the combination of the grounding lock signal of the target site's grounding cabinet and the remote associated site, and the grounding cabinet remote locking device signal meets the hard locking power outage conditions; based on the judgment result, perform a power outage locking operation on the target site.

5. The network-level visualized grounding system according to claim 1, characterized in that: The network-level control center includes: A communication management machine, used for providing a communication interface to establish a communication connection with each of the line-level grounding subsystems; A data monitoring module connected to the communication management machine is used to collect the closing and opening status data and alarm data of the grounding equipment at all stations on each track line; The fault warning module connected to the communication management machine and the cross-line locking module is used to provide a warning prompt based on the result of the locking operation.

6. The network-level visualized grounding system according to claim 5, characterized in that: The communication management machine includes a main communication management machine and a backup communication management machine; The main communication management machine is used to communicate with each of the line-level grounding subsystems through a first communication channel; The standby communication management machine is used to communicate with each of the line-level grounding subsystems through a second communication channel; When an abnormality occurs in the first communication channel, the backup communication management machine is started to communicate and connect with each of the line-level grounding subsystems through the second communication channel; when an abnormality occurs in the second communication channel, the main communication management machine is started to communicate and connect with each of the line-level grounding subsystems through the first communication channel.

7. The network-level visualized grounding system according to claim 6, characterized in that: The data monitoring module comprises: An equipment monitoring unit, connected to the main communication management machine and the standby communication management machine, and configured to read equipment status and equipment information of all sites from the communication machines in each of the line-level grounding subsystems through the first communication channel or the second communication channel; The video monitoring unit is connected to the video network in each of the line-level grounding subsystems via a video network, and is used to read the video information of the corresponding site.

8. The network-level visualized grounding system according to any one of claims 1 to 7, characterized in that: A four-level authority control method is used between each grounding device, each station, each track line and the network-level grounding subsystem to execute the locking and remote control of the grounding devices on all track lines.

9. The network-level visualized grounding system according to claim 8, characterized in that: The four-level authority control method is to delegate and recover authority step by step in the order of network control center, rail line, station, and grounding equipment to achieve unique operating authority.

10. The network-level visualized grounding system according to claim 8, characterized in that: The network-level grounding subsystem and each of the line-level grounding subsystems are arranged in a data stream parallel manner.

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