Rail transit traction power supply system four-remote integrated human-computer interaction method and device

Abstract

The application discloses a rail transit traction power supply system four-remote integrated human-computer interaction method and device, the method comprises the following steps: constructing an integrated human-computer interaction system based on MCGS; the interaction content comprises remote measurement data display, remote signaling state indication, remote control button control, remote adjustment parameter configuration, primary wiring topology graph and alarm information list; when a certain electrical quantity value of the remote measurement data exceeds a set protection threshold value, the alarm information list automatically generates an alarm record, adjusts the remote signaling indication light of the remote signaling state indication interaction interface to an abnormal state, and simultaneously generates a real-time locking signal as a prerequisite and verification basis for remote control operation; the administrator / ordinary user hierarchical permission verification is realized through MCGS scripts; the MCGS data driving mechanism is adopted to realize real-time refreshing of the remote measurement data, remote signaling data and alarm information list. The application has the advantages of high integration degree, strict permission, rapid response, stable operation, strong adaptability, easy engineering implementation and the like.

Description

Technical Field

[0001] This invention belongs to the field of rail transit traction power supply control technology, specifically relating to a human-machine interaction method and device for rail transit traction power supply system integrating four remote functions. Background Technology

[0002] With the rapid expansion of my country's urban rail transit network, the traction power supply system, as the power source for train operation, directly impacts the operational efficiency and traffic safety of the line due to its real-time monitoring, operational safety, and ease of maintenance. The traction power supply system encompasses core equipment such as rectifier units, DC switchgear, circuit breakers, disconnectors, and transformers, generating a large amount of electrical parameters, switch status, fault alarms, and protection action information during operation. Centralized monitoring and remote control of this information through a human-machine interface (HMI) is a key means to achieve the safe and efficient operation of the traction power supply system.

[0003] However, the human-machine interface of existing traction power supply equipment generally suffers from the following technical defects: 1) Dispersed remote functions lead to low operational efficiency. In traditional HMI solutions, telemetry data monitoring, remote signaling status viewing, remote control command operation, and remote adjustment parameter configuration are deployed on different pages. Maintenance personnel need to frequently switch between multiple pages when performing a complete equipment operation. For example, to view the current data of a circuit breaker, one needs to enter the telemetry page; to confirm its opening and closing status, one needs to switch to the remote signaling page; and to perform the opening operation, one needs to enter the remote control page. The operation process is fragmented, the response speed is slow, and in emergency fault handling scenarios, it is easy to delay the best handling time.

[0004] 2) Weak access control mechanisms pose security risks due to misoperation. Existing solutions often rely on single password authentication or lack an effective hierarchical access control system, with on-site maintenance personnel and system administrators sharing the same access point. Once the password is leaked, anyone can perform high-risk operations such as switching on / off circuits and protection systems, lacking role-based hierarchical access control and a secondary confirmation mechanism before operation. For systems like traction power supply, which are crucial for train safety, misoperation could lead to power outages or even equipment damage, posing a significant security risk.

[0005] 3) Incomplete alarm mechanism and insufficient fault tracing capability. Existing HMI alarm functions typically only provide simple text pop-up prompts, lacking real-time linkage indicators with the device location on the primary wiring diagram, making it difficult for maintenance personnel to locate faulty devices in a timely manner. Furthermore, the historical alarm record query function is weak, failing to support multi-dimensional filtering and pagination browsing by time, severity level, device type, etc., resulting in a lack of effective data support for post-fault event tracing and cause analysis.

[0006] 4) Weak topology visualization capabilities and low efficiency in multi-site monitoring. Traction power supply systems typically cover multiple substations, interconnected by a power supply ring network. Existing HMI solutions often use static diagrams or only support single-site displays, failing to intuitively present the power supply topology relationships and flow directions between multiple sites. When a short circuit or ground fault occurs, the fault point cannot be automatically highlighted on the topology diagram, requiring maintenance personnel to check the status of equipment at each site individually, resulting in low fault location efficiency.

[0007] 5) The lack of a unified management mechanism for parameter configuration leads to cumbersome on-site maintenance. The protection settings, operating parameters, and communication parameters of traction power supply equipment need to be adjusted periodically according to operational scenarios. In existing solutions, parameter configuration is mostly modified one by one through the local menu of the equipment, lacking a unified centralized configuration, one-click saving, and batch distribution mechanism. There is no version record or rollback function after parameter modification, resulting in a large workload and a high risk of errors in on-site maintenance.

[0008] 6) Insufficient embedded platform adaptation and lack of integrated solutions for traction power supply scenarios. While existing embedded configuration platforms such as MCGS provide basic HMI development tools, their general-purpose design has not been deeply adapted to the integrated requirements of traction power supply's four remote functions. In a single-threaded script environment, it is difficult to simultaneously meet the concurrent requirements of multiple tasks such as real-time response to remote signaling alarms, security verification of remote control commands, and high-frequency refresh of telemetry data. At the same time, the hardware resources built into the ARM architecture processor on which the platform relies, such as the interrupt controller (GIC), general-purpose input / output interface (GPIO), watchdog timer (WDT), and memory protection unit (MPU), are not fully utilized. This results in real-time performance relying on software polling, insufficient accuracy in timeout judgment, and security risks such as bypassing of access control data, making it difficult to meet the stringent functional safety requirements of traction power supply systems. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a human-machine interaction method and device for integrated remote sensing, remote control, remote operation, and remote control in rail transit traction power supply systems, thereby solving the problems of fragmented functions, weak permissions, incomplete alarms, insufficient visualization, cumbersome parameter management, and insufficient adaptation to embedded platforms.

[0010] This invention is achieved through the following technical solution: A human-machine interaction method integrating remote sensing, remote control, remote monitoring, and remote operation in a rail transit traction power supply system includes the following: An integrated human-machine interface system is built based on MCGS. The interactive content includes telemetry data display, remote signaling status indication, remote control button control, remote adjustment parameter configuration, primary wiring topology diagram, and alarm information list. The telemetry data display includes voltage, current, active power, reactive power, valve group temperature, frequency, energy statistics, load status, and communication status. The remote signaling status indication includes switch input status, fault level, and equipment operating status. Each remote signal has a corresponding remote signaling indicator light, with different colors indicating the current status of a specific remote signal. The remote control button control includes button controls for start, stop, trip, close, reset, protection enable / disable, and mode switching. The remote adjustment parameter configuration includes setting operating parameters, setting protection thresholds, sending parameters, and saving and retrieving configurations. When the value of a certain electrical quantity in the telemetry data exceeds the set protection threshold, the alarm information list automatically generates an alarm record and adjusts the remote signaling indicator light on the remote signaling status indicator interface to an abnormal state. At the same time, a real-time interlocking signal is generated as a prerequisite and verification basis for remote control operation. The MCGS script is used to implement hierarchical permission verification for administrators and ordinary users. Ordinary users only have permission to view telemetry data display, remote signaling status indication, primary wiring topology diagram and alarm information list. Administrators, in addition to the permissions of ordinary users, also have permission to control remote buttons and remote adjustment parameter configuration interaction. The MCGS data-driven mechanism is used to refresh the list of telemetry data, remote signaling data, and alarm information in real time.

[0011] Furthermore, the alarm records generated from the alarm information list contain the following field information: ; in, Indicates the first One alarm record; Indicates the alarm record number; and These represent the start and end times of the alarm, including year, month, day, hour, minute, and second; A description of the fault; Indicates the fault level.

[0012] Furthermore, the telemetry data display interface employs a variable-frequency adaptive refresh strategy for updating various data points. ; in, Indicates the first The actual refresh rate of each telemetry data point Indicates the base refresh rate; Indicates the first The refresh weight coefficient for each data point; Indicates the first The difference between the current sampled value and the previously displayed value for each data point; Indicates the first The range of each data point.

[0013] Furthermore, during remote control operation, a secondary confirmation pop-up window is displayed on the interactive page after clicking the "Execute Confirmation" option. Once the command has been confirmed twice, the watchdog timer's timing channel is activated simultaneously with the command issuance to detect timeouts during command execution. The command execution result is determined using the following closed-loop verification formula: ; in, Indicates the instruction execution status. This indicates that the command was successfully issued. This indicates that the command issuance failed. This indicates the target status value issued by the remote control command; Indicates the actual value; This indicates the instruction execution tolerance threshold; This indicates the cumulative time spent waiting for a response after an instruction has been issued. This indicates the instruction execution timeout threshold.

[0014] Furthermore, when an administrator enters an interactive interface that requires verification of administrator privileges, and there is no operation on the interface for a certain period of time, an inactivity timer is triggered; when the cumulative inactivity time exceeds the set value, the administrator account is automatically logged out.

[0015] Furthermore, while the telemetry data is being refreshed, limit detection is performed simultaneously. When a certain telemetry data exceeds the threshold range, that telemetry data is highlighted on the interactive interface.

[0016] Furthermore, before the remote adjustment parameters are issued, the validity of the parameters is verified. The input values ​​are considered valid if they are within the set range of allowed input values; otherwise, a pop-up message indicating that the parameters are set incorrectly will appear on the interactive interface.

[0017] Furthermore, when the DI board fails to self-test and the corresponding remote signaling channel is abnormal, the remote signaling indicator light will not display the corresponding color, but will remain in another color to indicate the current abnormal state of the DI board, so as to avoid displaying unreliable information and misleading the operation and maintenance personnel's judgment.

[0018] Furthermore, the interactive content also includes a visualized primary wiring topology diagram. The primary wiring topology diagram interactive interface has multi-site topology switching and navigation functions. Each site corresponds to an independent primary wiring topology diagram, and also includes a site overview diagram. The site overview diagram uses simplified graphic elements to display the power supply topology relationship and power flow direction of all sites. The valve group's operation is visualized in the topology diagram. The operation status of each valve group is determined by the bound remote signaling signal and the operation data. The current valve group is considered to be in operation only when the remote signaling signal of the current valve group is in operation and the operating output power is not lower than the minimum power threshold of the valve group. The valve group elements are distinguished by different colors to indicate whether they are in operation or not. Key telemetry data labels are displayed synchronously next to the core device elements in the topology diagram.

[0019] This invention also provides a four-remote integrated human-machine interaction device for rail transit traction power supply system, comprising: A human-computer interaction host computer is used to run MCGS configuration software and script logic. The human-computer interaction host computer is constructed using the method described above. The ARM processor lower-level machine connects to the switch signaling and protection lockout hard contacts of the traction power supply equipment through the GPIO interface, and connects to the telemetry data channel and remote control command channel of the traction power supply equipment through the communication interface. The ARM processor lower-level machine has a built-in watchdog timer, system timer and memory protection unit. The human-computer interaction host computer and the ARM processor slave computer are connected via a serial communication interface or an Ethernet interface to exchange data and transmit control commands in real time.

[0020] Compared with the prior art, the beneficial effects of this invention are as follows: This invention discloses a method and device for implementing integrated telemetry, telesignaling, remote control, and remote adjustment in a rail transit traction power supply system. It is applied to an MCGS LCD screen embedded platform based on an ARM processor. The platform consists of an MCGS LCD screen as the host computer for human-machine interaction and an ARM processor as the slave computer for data acquisition and control. This invention constructs an integrated human-machine interaction framework that integrates telemetry, telesignaling, remote control, and remote adjustment. Combined with hierarchical permission management for administrators / regular users, visualization of primary wiring diagram topology, real-time indication and historical query of hierarchical alarms, parameter configuration saving and reading, and MCGS script logic control, it achieves safe, efficient, and intuitive monitoring and operation of traction power supply equipment. This invention solves the problems of existing traction power supply equipment human-machine interface functions being scattered, with weak permission control, incomplete alarms, insufficient visualization, and cumbersome operation and maintenance. It has advantages such as high integration, strict permissions, fast response, stable operation, strong adaptability, and ease of engineering implementation. Attached Figure Description

[0021] Figure 1 This is a flowchart illustrating the human-computer interaction implementation of the present invention. Figure 2 This is a schematic diagram of the overall architecture of the human-computer interaction system of the present invention; Figure 3 This is a schematic diagram illustrating the steps of the four-remote integrated human-computer interaction implementation method of the present invention; Figure 4 This is a state machine control constraint diagram for the permission hierarchy of the present invention. Detailed Implementation

[0022] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This embodiment takes the human-computer interaction monitoring scenario of a rail transit traction power supply router as an example, and is implemented based on an embedded platform that uses an MCGS touch screen (host computer) and an ARM processor (slave computer) working together. The overall human-computer interaction implementation flowchart is as follows: Figure 1 As shown.

[0024] This invention is based on an MCGS touchscreen, and the human-computer interaction system includes: The telemetry data real-time display module displays interactive information including voltage, current, active power, reactive power, valve group temperature, frequency, energy statistics, load status, and communication status.

[0025] The remote signaling status indicator module includes the interaction of switch input status, fault level, and equipment operating status. Each remote signal has a corresponding remote signaling indicator light, with different colors used to identify the current status of a specific remote signal. Switch input status includes circuit breaker signals and cabinet door open / close signals. Equipment operating status includes running, fault, and shutdown. Fault levels are set according to the actual needs of project management. Each fault level has a remote signaling indicator light. For example, if the fault level is set to level three, serious alarms that affect equipment operation are classified as level one faults, while other less important alarms are classified as level two or three faults depending on the actual situation. The telemetry and remote signaling data corresponding to different fault levels are set according to the specific monitoring and management project.

[0026] The remote control button module interaction includes button control for start, stop, open, close, reset, protection enable / disable, and mode switching.

[0027] The remote adjustment parameter configuration and saving module interaction includes setting operating parameters, setting protection thresholds, issuing parameters, and saving and reading configurations.

[0028] The administrator / regular user hierarchical permission management module includes the verification and management of administrator or senior administrator permissions.

[0029] The interactive content of the primary wiring diagram topology monitoring module includes a full station overview and switching between stations. Key telemetry data labels are displayed synchronously next to the core equipment elements in the topology diagram, and the valve group's operational status is visualized.

[0030] The alarm information list module includes interactive content such as real-time alarm records and historical alarm information query and browsing.

[0031] When a certain electrical quantity value of the telemetry data exceeds the set protection threshold, the alarm information list automatically generates an alarm record and adjusts the remote signaling indicator light corresponding to the fault level of the telemetry data on the signaling status indicator interface to an abnormal state. At the same time, a real-time interlocking signal is generated as a prerequisite and verification basis for remote control operation.

[0032] The MCGS script implements hierarchical permission verification for administrators and ordinary users. Ordinary users only have permission to view telemetry data display, remote signaling status indication, primary wiring topology diagram, and alarm information list. Administrators, in addition to the permissions of ordinary users, also have permission to control remote buttons and configure remote adjustment parameters.

[0033] The MCGS data-driven mechanism is used to refresh the list of telemetry data, remote signaling data, and alarm information in real time.

[0034] The modules interact through the internal data bus of the MCGS platform to achieve functions such as permission verification, data linkage, page refresh, and prevention of accidental operations. The data flow can be abstracted as follows:

[0035] In the formula, For user input or device raw data, This is valid data that has passed the permission filtering. This is the final output to the interface or the result sent to the device.

[0036] The specific implementation process is as follows: 1) Construct an integrated human-computer interaction framework The overall architecture diagram of the human-computer interaction system is as follows: Figure 2 As shown. In a preferred embodiment of the present invention, within the MCGS script environment, to ensure real-time response to alarms and remote control actions, a unified scheduling priority model for action execution is defined as follows:

[0037] in, This represents the priority of action scheduling; the larger the value, the higher the priority. Different fault levels are assigned weights, with the weight increasing as the fault becomes more severe. Maximum allowable delay for action execution (in seconds); These are the weighting coefficients, in this example. , ; To avoid using a zero constant, we use 0.001 in this example.

[0038] This priority model guides the script in calculating the currently pending action in each loop. Values ​​are processed in descending order, with higher values ​​processed first. The value is adjusted to achieve a dynamic balance between remote control issuance and alarm processing.

[0039] 2) Permission login There are three levels of user permissions: regular user, administrator, and senior administrator, as detailed below:

[0040] in, Represents the user's permission level. At that time, the user is a regular user with only monitoring privileges. The default user privileges after system power-on are... ; At that time, as an administrator, one has full permissions to monitor, remotely control, and remotely adjust. At that time, the user is a senior administrator with all administrator privileges and account management permissions. The hierarchical state machine control constraint diagram is as follows: Figure 4 As shown.

[0041] Page access permission management and use The control logic, which uses the permission mask, is as follows:

[0042] in, This is a page access mask, which allows you to assign page access permissions based on login status. That is, when using the identity of a regular user, A value of 0 allows access to the interface for regular users. or When you are an administrator or senior administrator, you can access all operation-related interfaces.

[0043] Specifically, the visibility determination rules for the account management page entry are as follows:

[0044] in, As a visibility indicator for the account management page entry, when At that time, the account management page entry is hidden in the main frame of the page and is not clickable. At that time, the entry to the account management page is visible and clickable.

[0045] The user login authentication rules are as follows:

[0046] in, For the login authentication function, when the output result is When the output result is..., it means the authentication is successful. When this happens, it means authentication failed. This represents the username string entered by the user on the login page; This represents the password string entered by the user on the login page. This represents a pre-stored list of legitimate users, containing all registered usernames and their permission levels. This indicates a preset one-way hash function used to convert a password string into a fixed-length hash value; This represents the pre-stored password hash value in the user list, and... The corresponding user is stored during pre-registration. , indicating other cases (username does not exist or password hash does not match).

[0047] When an interface that requires administrator privileges to access is left inactive for a period of time, an inactivity timer will be triggered, and its update rules are as follows:

[0048] in, Indicates the cumulative time without any operations; Indicates the process Cumulative inactivity time after the specified time; This represents the cumulative time without operations at time t. This indicates that a user interaction event has been detected. This indicates that there was no user interaction.

[0049] This invention also includes an automatic logout function after a timeout to ensure operational security. The triggering conditions are as follows:

[0050] in, The automatic logout trigger flag will appear when... When this time, it indicates that automatic logout has been triggered; This indicates the timeout threshold for no operation, which is set to 600s in this embodiment. This indicates that the user is a regular user or Not timed out.

[0051] 3) Implementation of four-way remote interaction This invention integrates four functions—telemetry, remote signaling, remote control, and remote adjustment—within a unified human-machine interaction framework. Through MCGS scripts and ARM processor hardware resources, it achieves data acquisition and refresh, secure command issuance, parameter configuration management, and real-time status monitoring. The four remote function modules share permission verification results and data refresh channels, forming a closed-loop monitoring-control-feedback system. A schematic diagram of the steps for implementing the integrated four-remote human-machine interaction is shown below. Figure 3 As shown.

[0052] a) For telemetry data, including various operational data such as voltage, current, power, temperature, frequency, and electrical energy, this invention abstracts the telemetry data set into... The data collection cycle is The interface refresh rate is Then it satisfies This is to ensure consistency between interface data and device status.

[0053] To avoid excessive redrawing load on the ARM processor interface caused by refreshing all telemetry data at the same frequency, this invention adopts a variable frequency adaptive refresh strategy for telemetry data with low real-time requirements:

[0054] in, Indicates the first The actual refresh rate (in Hz) of each telemetry data point. Indicates the base refresh rate; Indicates the first The refresh weight coefficient for each data point; Indicates the first The difference between the current sampled value and the previously displayed value for each data point; Indicates the first The range of each data point.

[0055] While the telemetry data is being refreshed, limit detection will be performed simultaneously, as follows:

[0056] in, Indicates the first An out-of-limit flag for each telemetry data point; Indicates the first The current value of each telemetry data point; Indicates the upper limit threshold; This indicates the lower threshold. When the out-of-limit flag is set to 1, this data item will be displayed in flashing red text on the human-machine interface.

[0057] b) For remote control operations, to avoid misoperation and serious errors, this invention employs a three-level safety execution chain. This invention defines the remote control operation flag as... Commands can be issued when the following formula conditions are met.

[0058]

[0059] in, This indicates a secondary confirmation flag in the pop-up window. A value of 1 indicates that the user clicks "Confirm Execution," while a value of 0 indicates that the user clicks "Cancel" or the timeout has occurred.

[0060] A closed-loop verification strategy is designed for instruction issuance after secondary confirmation. The HMI sends remote control instruction messages to the device via the ARM fiber optic interface or the 485 bus interface. After the instruction is issued, the timing channel of the ARM watchdog timer (WDT) is immediately started for timeout detection during instruction execution. The instruction execution result is determined using the following closed-loop verification formula.

[0061]

[0062] in, Indicates the instruction execution status. The command was successfully issued. This indicates that the command issuance failed. This indicates the target status value issued by the remote control command; Indicates the actual value; This indicates the instruction execution tolerance threshold; in this embodiment, the switch operation is taken as... ; This indicates the cumulative time spent waiting for a response after an instruction has been issued. This indicates the instruction execution timeout threshold.

[0063] c) This invention abstracts the remote adjustment data set as , This indicates the total number of configurable parameters.

[0064] Before distributing parameters, this invention designs a parameter validity verification method to avoid distributing invalid values. The details are as follows:

[0065] in, This indicates the result of the parameter's validity check; a value of 1 indicates that the value is valid. Indicates the first i The minimum value allowed for each parameter to be entered; Indicates the first i The maximum allowed input value for each parameter. If A pop-up message indicating incorrect parameter settings will appear on the interface.

[0066] d) This invention abstracts the remote signaling data set as follows:

[0067] in, Represents the set of remote signaling input signals; Indicates the first One remote signal input signal.

[0068] Each remote signal A corresponding remote signaling indicator on the HMI interface Its display status is defined as follows:

[0069] in, Indicates the first One remote signaling indicator light; The remote signaling indicator light is green, indicating that the corresponding alarm remote signaling quantity is normal and there is no fault. This indicates that the remote signaling indicator light is red, the corresponding alarm remote signaling quantity is abnormal, and the alarm item is recorded, and the alarm record is written to the alarm information list; This indicates that the DI board self-test failed and the corresponding remote signaling channel is abnormal. When the DI board is abnormal, the remote signaling indicator light will be gray regardless of the actual status of the remote signal, to avoid displaying unreliable information and misleading maintenance personnel's judgment.

[0070] The remote signaling indicator light is refreshed in real time and triggered by the GPIO interrupt of the ARM processor: when the switch input status of the traction power supply equipment changes, the GPIO edge detection circuit generates an interrupt signal, and the interrupt response path is independent of the polling cycle of the MCGS script main loop.

[0071] 4) Alarm Handling When the remote signaling indicator light switches from GREEN to RED, the system synchronously writes an alarm record to the alarm information list, which includes the following fields:

[0072] in, Show the first i One alarm record; Indicates the alarm record number; and These represent the start and end times of the alarm, including year, month, day, hour, minute, and second; A description of the fault; Indicates the fault level.

[0073] At the same time, maintenance personnel can... and Filter and query historical alarm records to better locate faults and analyze the causes of problems.

[0074] 5) Topology visualization This invention features multi-site topology switching and navigation capabilities. Traction power supply systems typically include multiple substation sites, each corresponding to an independent primary wiring topology diagram.

[0075] in, Represents a set of site topology diagrams; This represents the topology of each site.

[0076] In addition to individual topology diagrams for each site, the system also provides a site-wide overview diagram to simplify the graphical representation of the power supply topology and power flow direction for all sites:

[0077] A visualization of valve group activation was designed in the topology diagram. The activation status of each valve group is determined by a combination of the linked remote signaling signals and operational data, as detailed below:

[0078] in, Indicates the first The operational status of each valve group; Remote signaling indicating the valve group's operating status; Indicates the current output power of the valve assembly; This indicates the minimum power threshold for the valve group to be put into operation. It is only considered to be in operation when the remote signaling indicates operation and the actual power exceeds the threshold, thus avoiding misjudgment due to remote signal jitter.

[0079] In the primary wiring diagram of the valve assembly, the on / off status is visually distinguished by color:

[0080] in, Indicates the first The fill color of each valve group element. This indicates that the valve assembly is in operation. This indicates that the valve group is in an inactive or deactivated state, meaning that the valve group is not currently receiving power.

[0081] The primary wiring diagram displays key telemetry data tags simultaneously alongside core equipment elements (circuit breakers, disconnectors, transformers, valve groups, etc.), allowing maintenance personnel to access equipment operating parameters while viewing the topology, without needing to switch to the telemetry data page, thus improving monitoring efficiency. The primary wiring diagram uses a layered display structure, from bottom to top:

[0082] in, This indicates the structural composition from the bottom layer to the top layer; Represents a grid background layer; Indicates the electrical connection layer; Represents a primitive layer; This represents the data label layer, displaying important telemetry data.

[0083] After telemetry data detects an anomaly, the corresponding fault level indicator light will illuminate. Maintenance personnel can then inspect the equipment or perform remote or tele-adjustment operations based on the displayed fault description.

[0084] The present invention has been described in detail above through embodiments, but the content described is only an exemplary embodiment of the present invention and should not be considered as limiting the scope of the present invention. The scope of protection of the present invention is defined by the claims. Any technical solutions designed by those skilled in the art using the technical solutions described in the present invention, or similar technical solutions designed by those skilled in the art under the inspiration of the technical solutions of the present invention, within the substance and scope of protection of the present invention, to achieve the above-mentioned technical effects, or equivalent changes and improvements made to the scope of the application, should still fall within the patent protection scope of the present invention. It should be noted that, for clarity, descriptions of some components and processes that are not directly and obviously related to the scope of protection of the present invention but are known to those skilled in the art have been omitted in the description of the present invention.

Claims

1. A human-machine interaction method integrating remote sensing, remote control, remote monitoring, and remote operation in a rail transit traction power supply system, characterized in that... Includes the following: An integrated human-machine interface system is built based on MCGS. The interactive content includes telemetry data display, remote signaling status indication, remote control button control, remote adjustment parameter configuration, primary wiring topology diagram, and alarm information list. The telemetry data display includes voltage, current, active power, reactive power, valve group temperature, frequency, energy statistics, load status, and communication status. The remote signaling status indication includes switch input status, fault level, and equipment operating status. Each remote signal has a corresponding remote signaling indicator light, with different colors indicating the current status of a specific remote signal. The remote control button control includes button controls for start, stop, trip, close, reset, protection enable / disable, and mode switching. The remote adjustment parameter configuration includes setting operating parameters, setting protection thresholds, sending parameters, and saving and retrieving configurations. When the value of a certain electrical quantity in the telemetry data exceeds the set protection threshold, the alarm information list automatically generates an alarm record and adjusts the remote signaling indicator light on the remote signaling status indicator interface to an abnormal state. At the same time, a real-time interlocking signal is generated as a prerequisite and verification basis for remote control operation. The MCGS script is used to implement hierarchical permission verification for administrators and ordinary users. Ordinary users only have permission to view telemetry data display, remote signaling status indication, primary wiring topology diagram and alarm information list. Administrators, in addition to the permissions of ordinary users, also have permission to control remote buttons and remote adjustment parameter configuration interaction. The MCGS data-driven mechanism is used to refresh the list of telemetry data, remote signaling data, and alarm information in real time.

2. The method according to claim 1, characterized in that, The alarm records generated from the alarm information list contain the following fields: ； in, Indicates the first One alarm record; Indicates the alarm record number; and These represent the start and end times of the alarm, including year, month, day, hour, minute, and second; A description of the fault; Indicates the fault level.

3. The method according to claim 1, characterized in that, The telemetry data display interface uses a variable-frequency adaptive refresh strategy to update various data. ； in, Indicates the first The actual refresh rate of each telemetry data point Indicates the base refresh rate; Indicates the first The refresh weight coefficient for each data point; Indicates the first The difference between the current sampled value and the previously displayed value for each data point; Indicates the first The range of each data point.

4. The method according to claim 1, characterized in that, During remote control operation, a secondary confirmation pop-up window is displayed on the interactive page after clicking the "Execute Confirmation" option. Once the command has been confirmed twice, a watchdog timer is activated simultaneously with the command issuance to detect timeouts during command execution. The command execution result is determined using the following closed-loop verification formula: ； in, Indicates the instruction execution status. This indicates that the command was successfully issued. This indicates that the command issuance failed. This indicates the target status value issued by the remote control command; Indicates the actual value; This indicates the instruction execution tolerance threshold; This indicates the cumulative time spent waiting for a response after an instruction has been issued. This indicates the instruction execution timeout threshold.

5. The method according to claim 1, characterized in that, When an administrator enters an interactive interface that requires administrator privilege verification, and there is no operation on the interface for a certain period of time, an inactivity timer is triggered; when the cumulative inactivity time exceeds the set value, the administrator account is automatically logged out.

6. The method according to claim 1, characterized in that, While the telemetry data is being refreshed, limit detection is performed simultaneously. When a telemetry data item exceeds the threshold range, that telemetry data item is highlighted on the interactive interface.

7. The method according to claim 1, characterized in that, Before issuing remote adjustment parameters, the parameters are validated. Input values ​​are considered valid if they are within the set range of allowed input values; otherwise, a pop-up message indicating incorrect parameter settings will appear on the interactive interface.

8. The method according to claim 1, characterized in that, When the DI board fails to self-test and the corresponding remote signaling channel is abnormal, the remote signaling indicator light will not display the corresponding color, but will remain in another color to indicate the current abnormal state of the DI board, regardless of the actual status of the remote signaling signal. This is to avoid displaying unreliable information and misleading the operation and maintenance personnel's judgment.

9. The method according to claim 1, characterized in that, The interactive content also includes a visualized primary wiring topology diagram. The primary wiring topology diagram interactive interface has multi-site topology switching and navigation functions. Each site corresponds to an independent primary wiring topology diagram. It also includes a site overview diagram, which uses simplified graphic elements to show the power supply topology relationship and power flow direction of all sites. The valve group's operation is visualized in the topology diagram. The operation status of each valve group is determined by the bound remote signaling signal and the operation data. The current valve group is considered to be in operation only when the remote signaling signal of the current valve group is in operation and the operating output power is not lower than the minimum power threshold of the valve group. The valve group elements are distinguished by different colors to indicate whether they are in operation or not. Key telemetry data labels are displayed synchronously next to the core device elements in the topology diagram.

10. A human-machine interaction device integrating remote sensing, remote control, remote operation, and remote monitoring for rail transit traction power supply systems, characterized in that... include: A human-computer interaction host computer is used to run MCGS configuration software and script logic, and the human-computer interaction host computer is constructed using the method described in any one of claims 1-9; The ARM processor lower-level machine connects to the switch signaling and protection lockout hard contacts of the traction power supply equipment through the GPIO interface, and connects to the telemetry data channel and remote control command channel of the traction power supply equipment through the communication interface. The ARM processor lower-level machine has a built-in watchdog timer, system timer and memory protection unit. The human-computer interaction host computer and the ARM processor slave computer are connected via a serial communication interface or an Ethernet interface to exchange data and transmit control commands in real time.

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