Management authority transfer method of urban rail transit line network level power monitoring system

Abstract

The invention discloses a management authority transfer method of an urban rail transit line network level power monitoring system, and relates to a rail transit power monitoring (PSCADA) system, which comprises the following steps that: step 1, a line network control center and a line control center set login authorities, and distinguish different user authority ranges; 2, enabling the network control center and the line control center to have a network communication normal function; 3, the network control center and the line control center can realize a system management authority transfer function; step 4, the network control center and the line control center can realize a function of operating data synchronization in different centers; and 5, the network control center and the line control center can realize the uniqueness in the operation network range through the system management authority.

Description

Technical Field

[0001] The present invention relates to a rail transit power monitoring (PSCADA) system, and in particular to a management authority transfer method for an urban rail transit line network-level power monitoring system. Background Art

[0002] Currently, my country's infrastructure construction is at its peak. Rail transit, as a key component of this infrastructure, is experiencing rapid development. Rail construction in many cities is progressing from a phase of initial construction to a phase of increasing scale. By February 2023, two cities in my country will have more than 20 rail transit lines (Beijing 27, Shanghai 20), and eight cities will have more than 10 lines (Guangzhou 18, Shenzhen 17, Chengdu 13, Hangzhou 12, Wuhan 14, Chongqing 10, Nanjing 14, and Shenyang 10). With the continuous development of urban rail transit, supporting facilities such as traction substations are also increasing. The demand for technical personnel, funding, and land resources is increasing, placing a significant burden on the development of urban rail transit. Based on this, a line-level power dispatching system has been proposed. This system operates equipment through the collaboration of a line control center and a line control center. Its core lies in the secure transfer of system management authority between the line control center and the line control center. This transfer of system management authority between the line control center and the line control center determines the current area of ​​system management authority and enables the operation and management of substation equipment. If the system management authority of the network and line control centers cannot be properly handled, serious consequences such as repeated operations, operation failures, cyclic operations, and operation delays in the network control center and the line control center will occur. Therefore, it can be seen that the safe transfer of system management authority of the network control center and the line control center is very important. Summary of the Invention

[0003] In order to solve the problems existing in the authority management of the existing rail transit line network-level power monitoring system, the present invention proposes a method for transferring management authority of the urban rail transit line network power monitoring system. The method utilizes network data interaction to ensure the security of the use of system management authority by the line network control center and the line control center, prevent repeated authorization, unauthorized and other situations, efficiently complete the transfer of system management authority between the line network control center and the line control center, and reduce the error rate of management operations.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for transferring management authority of an urban rail transit network power monitoring system, comprising the following steps: Step 1: Set login permissions for the network control center and line control center, and distinguish different user permission ranges.

[0005] Step 2: The network control center and the line control center have normal network communication functions.

[0006] Step 3: The network control center and the line control center can realize the transfer function of system management authority.

[0007] Step 4: The network control center and the line control center need to realize the function of synchronizing operation data in different centers.

[0008] Step 5: The network control center and the line control center can achieve uniqueness within the scope of the operating network through system management authority.

[0009] As a preferred embodiment of the present invention, step one: setting login permissions for the network control center and the line control center to implement operation permission restrictions for different users, prevent misoperation, and ensure the reliability of user operations.

[0010] Furthermore, permissions are divided into browsing permissions, system management permissions, and device operation permissions. Browsing permissions can observe the current device status, system management permissions confirm the uniqueness of a control center's device operation, and device operation permissions complete related operations on the device.

[0011] Furthermore, browsing permissions, system management permissions and equipment operation permissions are divided into two levels: the line network control center and the line control center. The scope and priority of the browsing permissions, system management permissions and equipment operation permissions of the line network control center and the browsing permissions, system management permissions and equipment operation permissions of the line control center are different.

[0012] Furthermore, the scope of browsing authority of the line network control center is the equipment status within the entire line network and the system management status of the line network control center and the line control center; the system management authority is the function of transferring the operation authority of the equipment from the line network control center to the line control center or taking it back from the line control center to the line network control center; the equipment operation authority refers to the function of the line network control center or the line control center with system management authority to modify the equipment status.

[0013] Furthermore, the scope of the line control center's browsing authority is the equipment status within the scope of this line and whether the current line control center has the status of the system management of this line; the system management authority refers to the function of the line control center to apply for or return the operation authority of the equipment on this line to the line network control center; the equipment operation authority refers to the function of modifying the equipment status within the scope of this line after obtaining the system management authority of this line.

[0014] As a preferred embodiment of the present invention, step 2: the line network control center and the line control center have normal network communication functions, including network links, disaster recovery redundancy and data transmission functions.

[0015] Furthermore, the line control center provides primary and backup network connections, can detect the current network link status, and can complete line switching when network anomalies occur.

[0016] Furthermore, the line control center provides server hot standby, and the primary or backup server provides communication services at the same time.

[0017] Furthermore, the line network control center provides primary and backup network connections, can correctly indicate the network communication status of all line control centers, can group the primary and backup network links of the same line, and correctly indicate the current connection status of the link.

[0018] Furthermore, the network control center provides hot standby servers, with the primary or backup server providing communication services at the same time.

[0019] As a preferred embodiment of the present invention, step three: the network control center and the line control center can implement the transfer function of operation authority, and only the line control center or the network control center that obtains the management authority can perform relevant operations on the equipment.

[0020] Furthermore, when the line control center does not have system management authority, it can apply for system management authority for this line. After completing relevant operations, the line control center can apply to transfer the system management authority to the line network control center.

[0021] Furthermore, after receiving the system management authority from the line control center, the line network control center can transfer the system management authority of the line. After the line completes the relevant operations, it receives the management authority transferred by the line control center.

[0022] Furthermore, the line network control center has higher management authority over the system than the line system management authority, and the line control center's system management authority can be forcibly seized.

[0023] Furthermore, when the network between the line control center and the line control center is blocked, the line control center temporarily obtains the system management authority of the line, and when the network is restored, the line control center takes back the system management authority of the line control center.

[0024] As a preferred embodiment of the present invention, step 4: the network control center and the line control center need to implement the function of ensuring data synchronization in different center operations to prevent data inconsistency between the network control center and the line control center.

[0025] Furthermore, the network control center's equipment operations and operation results must be synchronized to the line control center, and the equipment operations and operation result information of the network control center must be consistent.

[0026] Furthermore, the line control center's operations on the equipment and the results of the operations must be returned to the line network control center, and the line control center's equipment operations and operation result information must remain consistent.

[0027] Furthermore, the network control center and the line control center must shield the synchronization of equipment operations and operation results. The network control center or the line control center can only perform equipment operations once, and the synchronized equipment operations and operation results cannot trigger any operations to prevent repeated operations.

[0028] Furthermore, when there is an abnormality in the communication between the line network control center and the line control center, the line network control center cannot operate the equipment and gives an abnormal prompt.

[0029] Furthermore, when the line network control center and the line control center restore the communication connection, the line control center should actively send the equipment status of the line to the line network control center to complete data synchronization. The synchronized data only modifies the status and blocks other operations.

[0030] As a preferred embodiment of the present invention, step five: the network control center and the line control center can achieve uniqueness of operation within the network through system management authority, and prohibit unauthorized operations.

[0031] Furthermore, when the line control center no longer has system management authority over the line system, other equipment operations except for application for system management authority will be unable to be performed.

[0032] Furthermore, when the line control center regains the system management authority for this line, the line control center can operate related equipment, and the line network control center can only observe the status of related equipment on this line and cannot operate it.

[0033] Furthermore, when the line network control center does not have the system management authority for a certain line, other equipment operations except for the system management authority for the line cannot be performed.

[0034] Furthermore, when the line network control center regains the system management authority for a certain line, it can operate the related equipment of the line. The line control center can only observe the equipment status of the line and cannot operate it.

[0035] Furthermore, the same user can only log in on one device and is prohibited from appearing in both the online network control center and the line control center at the same time, nor is it allowed to appear in the primary and backup clients of the same center at the same time.

[0036] Furthermore, the same user can have different permissions when logging in to different servers, which distinguishes the management scope of the user.

[0037] Compared with the prior art, the present invention has the following advantages: 1. Through authority transfer management, it can ensure the uniqueness of the operations of the network center and the line center, improve the safety of the power monitoring system operation, prevent misoperation, and reduce operational risks.

[0038] 2. Through authority transfer management, the management authority of the network center and the line center can be dynamically allocated, thereby improving the flexibility of the network center and the line center in managing the power equipment of the entire network.

[0039] 3. It can obtain the network connection status of the line control center and the line network control center in a timely manner, and transfer management authority to the line center in time when the network is abnormal, thereby improving the ability to respond to network risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the modules that constitute the transfer of management authority of the rail transit power monitoring system in this embodiment.

[0041] Figure 2 This is a schematic diagram of the network architecture for the transfer of management authority of the rail transit power monitoring system in this embodiment.

[0042] Figure 3 Schematic diagram of the line network control center command execution process in this embodiment.

[0043] Figure 4 This is a schematic diagram of the line control center command execution flow in this embodiment.

[0044] Figure 5 This is a schematic diagram of the process of transferring management authority of the line network control center in this embodiment.

[0045] Figure 6 Schematic diagram of the line control center management authority transfer process in this embodiment.

[0046] Figure 7 This is a schematic diagram of the login interface of the rail transit power monitoring system in this embodiment. DETAILED DESCRIPTION

[0047] In order to better enable those skilled in the art to understand the present invention, the present invention will now be further described based on specific implementations. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] This real-time example provides a plan for transferring management rights of the rail transit power monitoring system. The plan includes three parts: system management rights, login rights, and data interaction. Figure 1The system management authority module realizes the transfer of network / line management authority and the uniqueness of equipment operation. This function first requires authentication and login, and then completes subsequent operations through data interaction between the network control center and the line control center. Login authority distinguishes whether the current staff can log in, whether they are in browsing mode or operation mode after logging in. The implementation of this function is based on the data synchronization function. Data synchronization completes the most basic data interaction to ensure the real-time and accurate two-way data interaction between the network control center and the line control center.

[0049] See the network architecture diagram of this embodiment for Figure 2 , including a line network control center and multiple line control centers. The line network control center and the line control center are equipped with two system management authority servers, two workstations, and two switches.

[0050] Step 1: Set user login permissions.

[0051] User login uses the user account and password verification method, which are blank by default; set the user login time limit. If not set, the default setting is 12 hours; the login interface has a status prompt to feedback the login result. If the login error occurs, the reason for the login error will be prompted; the login interface provides server selection. If not set, the default setting is the primary server; after the user name and password are set correctly, click the login button to enter the interface, such as Figure 7 .

[0052] After entering the interface, there are browsing mode and operation mode. In browsing mode, you can view the status of all devices under the current permission, but you cannot perform any operations. After entering the operation mode, the system management permission is modified to determine whether the current user can modify the status of related devices. The range of devices that can be modified in the line network control center and the line control center is different. Please refer to Table 1.

[0053] Table 1: User management scope

[0054] If the user is currently logged in on another server, then the user will not be able to continue logging in on this server. The user can only log in to this server after logging out of the other server.

[0055] Step 2: The network control center and the line control center can communicate normally and can correctly indicate the current connection status.

[0056] The line network control center and the line control center are set up with hot standby redundancy. The hot standby is distinguished by setting different IP addresses. The line network control center and the line control center are set with the same port number and are connected through a redundant network. The line network control center server and the line control center server are both configured with the primary and backup network IP addresses.

[0057] The line network control center server can correctly display the server where the system management authority transfer program (line network side) is running, the network used by the current server, and the connection status of each line control center, such as the main network of the main server and the backup network of the main server. If the network of a line control center is abnormal, the reason for the line connection failure will be prompted.

[0058] The line control center server can correctly display the server where the system management authority transfer program (line side) is running and the network used by the current server. If the network with the line network control center is abnormal, the reason for the connection failure will be prompted.

[0059] Step 3: The network control center and the line control center can realize the two-way transfer of system management authority.

[0060] The line network control center also has the function of transferring the system management authority of multiple lines. After receiving the system management authority application from the line control center (see Table 2), it can find the corresponding authority and transfer the authority to the line control center. At the same time, it modifies the system management authority status to the line center (see Table 3). The line control center also modifies the system management authority status to the line center. In addition to the line control center application, the line network control center can also actively transfer the management authority. After the management authority is transferred to the line control center, the line network control center no longer controls the equipment of the line. The line network control center management authority transfer process is as follows: Figure 5 .

[0061] Table 2: System management status table

[0062] Table 3: System management authority status table

[0063] The line control center can only apply for the system management authority of this line. After completing the equipment status modification operation, it can apply for status upload, or the line network control center can directly take it back. After receiving the line center's request, the line network control center will take the authority back to the center. The system management authority of the line network control center and the line control center will also be changed to the line network center. The line control center management authority transfer process is as follows Figure 6 .

[0064] If the network status is abnormal and causes the line control center to temporarily obtain system management permissions, an abnormal pop-up window will pop up when the line control center operates on the device, and a log will be recorded. At this time, the line control center can perform operations on the device, and an abnormal operation pop-up window will be displayed indicating that the device operation has not been synchronized to the line control center, and a log will be recorded. When the network is restored, the line control center's system management permissions will be adjusted according to the status of the line control center.

[0065] Step 4: The network control center and the line control center need to achieve real-time synchronization of operations in different centers and cannot interfere with each other.

[0066] The network control center and the line control center simultaneously implement the hot standby system management authority transfer program (network side, line side) on the primary and backup servers. The network control center and the line control center use full-duplex data interaction. The equipment status of the line control center is synchronized to the network control center in real time. The equipment control commands of the network control center and the line control center need to be isolated. The network control center command execution process is as follows: Figure 3 As shown, the line control center command execution process is as follows Figure 4 As shown, for example, the status of the device control command of the line network control center is synchronized to the line control center, but the control operation will not be triggered again, and vice versa.

[0067] Step 5: The network control center and the line control center can achieve uniqueness within the scope of the operating network through system management authority.

[0068] After the system management authority is transferred from the line network management center to the line center, all equipment controls of the line by the line network control center will be locked. The equipment operability status in the locked mode is different from the color in the activated mode, and the line network control center cannot perform equipment control operations; the equipment operability status of the line control center changes from locked mode to activated mode, and the color will also be modified, and equipment control operations can be performed, and vice versa.

[0069] As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself, and various changes in form and details may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transferring management authority of an urban rail transit network-level power monitoring system, characterized in that: The following steps are involved: Step 1: Set login permissions for the network control center and line control center to distinguish different user permission ranges; Step 2: The network control center and the line control center have normal network communication functions; Step 3: The network control center and the line control center can realize the transfer function of system management authority; Step 4: The network control center and the line control center can realize the function of data synchronization between different centers; Step 5: The network control center and the line control center can achieve uniqueness within the scope of the operating network through system management authority.

2. The method for transferring management authority of an urban rail transit network-level power monitoring system according to claim 1, characterized in that: The step 1 is specifically as follows: Login permissions are divided into browsing permissions, system management permissions, and device operation permissions. The browsing permissions allow users to observe the current device status; the system management permissions confirm the uniqueness of a control center's control over the device; and the device operation permissions allow users to complete related device operations. Browsing permissions, system management permissions, and equipment operation permissions are divided into two levels: the line network control center and the line control center. At the line network control center level, browsing permissions are limited to the equipment status within the entire line network and the system management status of the line network control center and the line control center. System management authority is the function of transferring the operation authority of equipment from the line control center to the line control center or taking it back from the line control center to the line control center; equipment operation authority is the function of the line control center or line control center with system management authority to modify the equipment status; At the line control center level: browsing permissions cover the status of devices within the line and whether the current line control center has system management rights for the line; system management permissions refer to the line control center's ability to apply to or return permissions for operating devices on the line from the network control center; and device operation permissions refer to the ability to modify the status of devices within the line after obtaining system management permissions for the line.

3. The method for transferring management authority of an urban rail transit network-level power monitoring system according to claim 1, characterized in that: The step 2 is specifically as follows: The line control center provides primary and backup network connections, can detect the current network link status, and can complete line switching in the event of network anomalies; The line control center provides server hot standby, with the primary or backup server providing communication services at the same time; The line network control center provides active and standby network connections, can correctly display the network communication status of all line control centers, can group the active and standby network links of the same line, and correctly display the current connection status of the link; The network control center provides server hot standby, and the main or backup server provides communication services at the same time.

4. The method for transferring management authority of an urban rail transit network-level power monitoring system according to claim 1, characterized in that: The step three is specifically as follows: When the line control center does not have system management authority, it can apply for system management authority for this line. After completing relevant operations, the line control center can apply to transfer system management authority to the line network control center; After receiving the system management authority from the line control center, the line network control center transfers the system management authority of the line. After the line completes the relevant operations, it receives the management authority transferred by the line control center. The line network control center has higher management authority over the system than the line system management authority, and can forcibly seize the system management authority of the line control center; When the network of the line network control center and the line control center is blocked, the line control center temporarily obtains the system management authority of the line. When the network is restored, the line network control center takes back the system management authority of the line control center.

5. The method for transferring management authority of an urban rail transit network-level power monitoring system according to claim 1, characterized in that: The step 4 is specifically as follows: The network control center's equipment operations and operation results must be synchronized to the line control center, and the equipment operations and operation result information in the network control center must be consistent; The line control center's equipment operations and operation results must be returned to the line network control center, and the line control center's equipment operations and operation result information must be consistent; The network control center and the line control center must block the synchronization of device operations and operation results. The network control center or the line control center can only perform device operations once. The synchronized device operations and operation results cannot trigger any other operations to prevent repeated operations. When the communication between the line network control center and the line control center is abnormal, the line network control center cannot operate the equipment and gives an abnormal prompt; When the line network control center and the line control center restore the communication connection, the line control center should actively send the equipment status of the line to the line network control center to complete the data synchronization. The synchronized data only modifies the status and blocks other operations.

6. The method for transferring management authority of an urban rail transit network-level power monitoring system according to claim 1, characterized in that: The step five is specifically as follows: The network control center and line control center can achieve uniqueness of operation within the network through system management authority, and prohibit unauthorized operations; When the line control center no longer has the system management authority for the line system, other equipment operations except for the application of system management authority will be unable to be performed; When the line control center regains the system management authority for this line, it can operate related equipment, while the network control center can only observe the status of related equipment on this line and cannot operate it; When the network control center does not have the system management authority for a certain line, other equipment operations except for the system management authority for that line cannot be performed; When the line network control center regains the system management authority for a line, it can operate the related equipment of the line. The line control center can only observe the equipment status of the line and cannot operate it. The same user can only log in on one device and cannot be in the online network control center and the line control center at the same time, nor can they be in the primary and backup clients of the same center at the same time. The same user can have different permissions when logging in to different servers, which distinguishes the user's management scope.

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