A partition traction cut-off control method, system and controller

Abstract

The application discloses a partition traction cut-off control method, system and controller, the method is applied to a partition traction cut-off system DPS constructed based on a FirmSys platform, the DPS is respectively in communication connection with a partition safety computer DSC and a traction system, a control instruction sent by the DSC is received, a first running state of the DPS and a second running state of the traction system are acquired, and corresponding interlocking control actions are executed according to the control instruction, the first running state and the second running state, so that different control instructions can execute corresponding control operations in combination with the current running state of the system, thereby realizing interlocking control of the traction system by the partition traction cut-off system, improving consistency and reliability of control logic, and meeting the partition traction control requirement of a high-speed maglev train.

Description

Technical Field

[0001] This application relates to the field of control technology, specifically to a zoned traction cutoff control method, system, and controller. Background Technology

[0002] High-speed maglev trains typically employ a zoned power supply method for their traction systems. To ensure train operation safety, a zoned traction cutoff system is usually installed. Upon receiving control commands from the zoned safety computer, this system executes corresponding control operations on the traction system to meet the operational control requirements of the high-speed maglev train. Summary of the Invention

[0003] In view of this, this application provides a zoned traction cutoff control method, system and controller that can meet the zoned traction control requirements of high-speed maglev trains.

[0004] To solve the above problems, the technical solution provided in this application is as follows: This application provides a zoned traction cutoff control method, applied to a zoned traction cutoff system (DPS) built on the FirmSys platform. The DPS is communicatively connected to a zoned safety computer (DSC) and a traction system. The method is executed by the DPS and includes: receiving control commands sent by the DSC; the control commands include a traction system cutoff command, a traction system release command, a DPS release command, and a DPS reset command; acquiring a first operating state of the DPS and a second operating state of the traction system; and executing corresponding interlocking control actions according to the control commands, the first operating state, and the second operating state. Specifically, upon receiving a traction system cutoff command, a traction cutoff command is output to the traction system to control the traction system to perform traction cutoff; upon receiving a traction system release command, a traction release command is output to the traction system to control the traction system to restore traction power supply; upon receiving a DPS release command, corresponding DPS release control is executed according to the first operating state; and upon receiving a DPS reset command, the DPS disabled state is lifted.

[0005] One possible implementation involves outputting a traction cut-off command to the traction system upon receiving a command to cut off the traction system, including: outputting an electronic cut-off command to the traction system upon receiving the command to cut off the traction system; and outputting an electrical cut-off command to the traction system while the electronic cut-off command continues for a first preset duration and is in an active state.

[0006] One possible implementation is that the second operating state includes an electronic cut-off state; the electronic cut-off command being in a valid state includes: determining that the electronic cut-off command is in a valid state based on the electronic cut-off state.

[0007] One possible implementation is that the second operating state includes a traction cut-off state; upon receiving a traction system release command, outputting a traction release command to the traction system includes: upon receiving a traction system release command and the traction cut-off state lasting for a second preset duration, outputting a traction release command to the traction system; and prohibiting the output of the traction system release command during the second preset duration.

[0008] One possible implementation is that the first running state includes an initialization state; upon receiving a DPS release command, the corresponding DPS release control is executed according to the first running state, including: Upon receiving a DPS release command and provided the initialization state is valid, execute the corresponding DPS release control.

[0009] One possible implementation includes a first operating state including a communication state; and executing corresponding interlocking control actions according to control commands, the first operating state, and the second operating state, further including: outputting an electronic cut-off command to the traction system when the communication state is in a communication failure state; and outputting an electrical cut-off command to the traction system when the electronic cut-off command lasts for a first preset duration and is in a valid state.

[0010] One possible implementation is that the first operating state includes a DPS disabled state; the method further includes: updating the first operating state to a DPS disabled state when the number of times the electrical disconnect command is executed reaches a preset number; and prohibiting the response to control commands other than the DPS reset command when the first operating state is a DPS disabled state.

[0011] One possible implementation involves removing the DPS disable state upon receiving a reset DPS command, including: if the first running state is in a DPS disabled state, upon receiving the reset DPS command, updating the first running state from a DPS disabled state to a non-DPS disabled state to restore the response to control commands.

[0012] This application also provides a zoned traction disconnection control system, including: a message transceiver module, a signal acquisition module, and a logic control module; the message transceiver module is used to receive control commands sent by the DSC; the control commands include a traction system disconnection command, a traction system release command, a DPS release command, and a DPS reset command; the signal acquisition module is used to acquire a first operating state of the DPS and a second operating state of the traction system; the logic control module is used to execute corresponding interlocking control actions according to the control commands, the first operating state, and the second operating state; wherein, upon receiving a traction system disconnection command, a traction disconnection command is output to the traction system to control the traction system to perform traction disconnection; upon receiving a traction system release command, a traction release command is output to the traction system to control the traction system to restore traction power supply; upon receiving a DPS release command, corresponding DPS release control is executed according to the first operating state; and upon receiving a DPS reset command, the DPS disabled state is released.

[0013] This application also provides a controller for executing the partitioned traction cutoff control method described in any of the above implementations.

[0014] The partitioned traction cutoff control method provided in this application receives control commands sent by the DSC, obtains the first operating state of the DPS and the second operating state of the traction system, and executes corresponding interlocking control actions according to the control commands, the first operating state, and the second operating state. This enables different control commands to perform corresponding control operations in combination with the current operating state of the system, thereby realizing the interlocking control of the partitioned traction cutoff system on the traction system, improving the consistency and reliability of the control logic, and meeting the partitioned traction control requirements of high-speed maglev trains. Attached Figure Description

[0015] Figure 1 A flowchart of a zoned traction cutoff control method provided in this application embodiment; Figure 2 A logical schematic diagram of a zoned traction cutoff control method provided in an embodiment of this application; Figure 3 A schematic diagram of a zoned traction cutting-off control system provided in an embodiment of this application; Figure 4 This is a schematic diagram of another zoned traction cutting control system provided in an embodiment of this application. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] This application does not specifically limit the application scenario of the zoned traction cutoff control method; for example, it can be applied to the operation control scenario of high-speed maglev trains. For ease of understanding, this application uses the operation control scenario of high-speed maglev trains as an example for description.

[0018] High-speed maglev trains typically employ a zoned power supply method for their traction systems. To ensure train operation safety, a zoned traction cutoff system is usually installed. Upon receiving control commands from the zoned safety computer, the zoned traction cutoff system performs control operations such as traction cutoff and traction release to meet the operational control requirements of the high-speed maglev train.

[0019] High-speed maglev zone traction cutoff systems are typically developed based on embedded control platforms, implementing traction cutoff logic, traction release logic, and related interlocking control logic through program code. As the functions of high-speed maglev operation control systems continue to increase, the types of control commands and operating states that the zone traction cutoff system needs to handle also increase. Complex interlocking relationships exist between different control commands, requiring the execution of corresponding control operations based on the traction system's operating state and the system's own operating state. Furthermore, the execution conditions of various control commands differ under different operating conditions such as communication anomalies, system initialization, and system disabling. Without a unified interlocking control mechanism, not only will the design complexity of the control logic increase, but conflicts between different control actions will also easily arise, affecting the consistency and maintainability of the system's control logic.

[0020] Furthermore, the related program code-based control methods typically require program modification, compilation, downloading, and debugging during control logic adjustment, interlocking relationship modification, and subsequent maintenance. This results in low development efficiency and high maintenance difficulty, which is not conducive to the rapid development and functional expansion of high-speed maglev zone traction cutting systems.

[0021] In view of this, this application provides a zoned traction cutoff control method, which can execute corresponding interlocking control actions according to control commands and system operating status, realize the interlocking control of the zoned traction cutoff system on the traction system, improve the consistency and reliability of control logic, and meet the zoned traction control requirements of high-speed maglev trains.

[0022] See Figure 1 The figure is a flowchart of a zoned traction cutting-off control method provided in an embodiment of this application.

[0023] The partitioned traction cutoff control method provided in this application is applied to a partitioned traction cutoff system (DPS) built on the FirmSys platform. The DPS is communicatively connected to both the partitioned safety computer (DSC) and the traction system.

[0024] The zoned traction cutoff control method provided in this embodiment is executed by the DPS, and the method includes: S101: Receives control commands sent by DSC.

[0025] Control commands include commands to disconnect the traction system, release the traction system, release the DPS, and reset the DPS.

[0026] This application does not specifically limit the transmission method of control commands, as long as it enables information exchange between the DSC and DPS. For example, network messages, bus communication messages, or other digital communication methods can be used for transmission, and are not limited here.

[0027] S102: Obtain the first operating status of the DPS and the second operating status of the traction system.

[0028] The first operating state can characterize the current operating state of the DPS, such as initialization state, communication state, DPS disabled state, etc.; the second operating state can characterize the current operating state of the traction system, such as traction disconnection state, electrical disconnection state, electronic disconnection state, etc. The DPS can acquire its own operating state and the operating state fed back by the traction system in real time as the basis for determining the execution of interlocking control actions. By acquiring the first and second operating states simultaneously, the embodiments of this application can ensure that different control commands are executed when the corresponding operating conditions are met, thereby improving the accuracy and safety of the control logic.

[0029] S103: Execute the corresponding interlocking control action according to the control command, the first operating state, and the second operating state.

[0030] Specifically, upon receiving a traction system cut-off command, a traction cut-off command is output to the traction system to control it to perform traction cut-off. Upon receiving a traction system release command, a traction release command is output to the traction system to control it to restore traction power supply. Upon receiving a DPS release command, the corresponding DPS release control is executed according to the first operating state. Upon receiving a DPS reset command, the DPS disabled state is lifted.

[0031] In this embodiment, different control commands correspond to different interlocking control actions. The DPS can combine the currently acquired first and second operating states to perform interlocking judgment on the control commands and execute the corresponding control operations. By associating control commands with the system operating states, this application achieves interlocking control of different control commands under different operating conditions, improving the consistency and reliability of the control logic of the zoned traction disconnection system.

[0032] The partitioned traction cutoff control method provided in this application receives control commands sent by the DSC, obtains the first operating state of the DPS and the second operating state of the traction system, and executes corresponding interlocking control actions according to the control commands, the first operating state, and the second operating state. This enables different control commands to perform corresponding control operations in combination with the current operating state of the system, thereby realizing the interlocking control of the partitioned traction cutoff system on the traction system, improving the consistency and reliability of the control logic, and meeting the partitioned traction control requirements of high-speed maglev trains.

[0033] One possible implementation, according to this application embodiment, is based on the FirmSys platform, which uses a graphical configuration method to construct the control logic corresponding to the interlocking control action; and uses a function block connection method to realize the logical relationship between control commands, operating status and interlocking control actions.

[0034] The following is combined Figure 2 The interlocking control logic corresponding to the partitioned traction cutoff control method provided in the embodiments of this application will be introduced.

[0035] See Figure 2 The figure is a logical schematic diagram of a zoned traction cutoff control method provided in an embodiment of this application.

[0036] Figure 2 This diagram illustrates the logic of a zoned traction disconnection control implemented using the FirmSys platform. The control logic takes the DPS release command, traction system release command, traction system disconnection command, and DPS reset command sent by the DSC as input. It combines the DPS initialization state, communication state, DPS disabled state, and the traction system's feedback operating state to execute corresponding interlocking control actions through a logic operation module, a holding module, and a timing module. The output is a DPS release command, traction release command, electronic disconnection command, electrical disconnection command, or a DPS reset / disable command.

[0037] The logic operation module can include logic units such as AND gates and NOT gates. AND gates are used to determine whether multiple interlocking conditions are met simultaneously, outputting the corresponding control result only when all input conditions are met. NOT gates are used to logically invert the DPS disabled state, allowing the corresponding control logic to continue execution when the DPS is not disabled, and prohibiting the response to control commands other than the DPS reset command when the DPS is disabled.

[0038] Figure 2 The state holding module can be implemented using an RS holding module to maintain the corresponding control state. When the set condition is met, the corresponding control state remains valid; when the reset condition is met, the corresponding control state is released. Specifically, the state holding module can be used to maintain the DPS release state, traction release state, and electronic cut-off state to ensure that each control action is executed stably in a preset sequence.

[0039] The pulse module is used to generate pulse signals of a preset duration. For example, it can generate a 1000ms pulse signal to limit the output timing of the traction release command, so that the traction release command remains valid for the preset duration.

[0040] The timing module is used to determine the delay of the electronic disconnection command. When the electronic disconnection command remains valid for a preset duration, the electrical disconnection command is triggered. The preset duration can be, for example, 200ms.

[0041] This application embodiment uses the graphical configuration method provided by the FirmSys platform to configure the logic operation module, state maintenance module and timing module. By connecting each functional module, the corresponding interlocking logic is realized, without having to write the control logic line by line in the underlying code. This improves the readability and maintainability of the control logic and facilitates subsequent function expansion and debugging.

[0042] The following is combined Figure 2 This application provides a detailed description of the partitioned traction cutting-off control method provided in its embodiments.

[0043] One possible implementation, in the partitioned traction cut-off control method provided in this application embodiment, upon receiving a cut-off command for the traction system, includes outputting a traction cut-off command to the traction system, comprising: Upon receiving a command to disconnect the traction system, an electronic disconnect command is output to the traction system. If the electronic disconnect command persists for a first preset duration and remains valid, an electrical disconnect command is output to the traction system.

[0044] After receiving the traction system cutoff command from the DSC, the DPS first outputs an electronic cutoff command to the traction system, causing the traction system to execute the electronic cutoff. After the electronic cutoff command is output, the DPS times the duration of the electronic cutoff command and determines whether the electronic cutoff command remains valid.

[0045] Figure 2 The timing module in the system is used to detect the duration of the electronic cut-off state. When the electronic cut-off state continues for a preset duration and remains valid, it indicates that the electronic cut-off control has not been revoked, and the DPS continues to output electrical cut-off commands to the traction system, causing the traction system to perform electrical cut-off based on the electronic cut-off. When the electronic cut-off command fails within the first preset duration, the DPS can choose not to output an electrical cut-off command to avoid continuing to perform electrical cut-off even though the electronic cut-off control has been released.

[0046] This application does not specifically limit the value of the first preset duration, but can set it according to the response time required for the traction system to complete the electronic cut-off. For example, the first preset duration can be 200ms.

[0047] This application embodiment outputs an electronic cut-off command first, and then outputs an electrical cut-off command while the electronic cut-off command continues for a first preset duration and remains valid. This allows the electronic cut-off and electrical cut-off to be executed in a preset order, which helps to improve the reliability of traction cut-off control.

[0048] In one possible implementation, the partitioned traction cutoff control method provided in this application embodiment includes an electronic cutoff state in the second operating state.

[0049] The electronic cut-off command is in a valid state, including: determining that the electronic cut-off command is in a valid state based on the electronic cut-off status.

[0050] The electronic cutoff status is used to characterize whether the traction system is currently in electronic cutoff mode. After outputting an electronic cutoff command, the DPS can obtain the electronic cutoff status feedback from the traction system and determine whether the electronic cutoff command is still valid based on the electronic cutoff status.

[0051] Combination Figure 2 The electronic cutoff state can be sequentially input into the BSR function block, PRE function block, and BINI function block for periodic data processing.

[0052] The BSR function block performs periodic data processing on the input electronic cutoff state to save the electronic cutoff state data for the corresponding control cycle. The PRE function block reads the electronic cutoff state data from the previous control cycle processed by the BSR function block. The BINI function block converts the electronic cutoff state data read by the PRE function block into the logic state required for subsequent logic operations.

[0053] The BSR, PRE, and BINI function blocks work together to provide the electronic cut-off status feedback from the traction system in the previous control cycle to the current control cycle, enabling the electronic cut-off status from the previous control cycle to participate in the interlocking judgment of the current control cycle.

[0054] This application embodiment uses the electronic cut-off state of the previous control cycle to perform the logic operation of the current control cycle, which can reduce the situation where the logic output of the current control cycle is directly fed back to the logic input of the current control cycle, thus forming a logic loop and improving the stability of the electronic cut-off state judgment and interlocking control logic operation.

[0055] When the electronic cut-off status indicates that the traction system is in an electronic cut-off state, the DPS determines that the electronic cut-off command is still valid and executes subsequent electrical cut-off control after the electronic cut-off command has been in effect for a first preset duration. When the electronic cut-off status indicates that the traction system is not in an electronic cut-off state, the DPS determines that the electronic cut-off command is not valid, and in this case, subsequent electrical cut-off control may not be executed.

[0056] The embodiments of this application determine whether the electronic cut-off command is valid based on the electronic cut-off status. This allows the DPS to determine whether to execute the electrical cut-off based on the actual operating status feedback from the traction system, rather than simply executing subsequent control based on the output time of the electronic cut-off command. This avoids continuing to output the electrical cut-off command when the electronic cut-off is not properly maintained.

[0057] This application embodiment determines whether the electronic cut-off command is valid based on the electronic cut-off status, thereby associating the electrical cut-off control with the actual electronic cut-off status of the traction system, thus improving the accuracy and reliability of traction cut-off control.

[0058] In one possible implementation, the partitioned traction cutoff control method provided in this application embodiment includes a traction cutoff state in the second operating state.

[0059] Upon receiving the release command from the traction system, the step of outputting a traction release command to the traction system includes: Upon receiving a release command for the traction system and while the traction disconnection state remains in effect for a second preset duration, a traction release command is output to the traction system; the output of the release command for the traction system is prohibited during the second preset duration.

[0060] The traction cut-off state indicates that the traction system is currently in a cut-off state. After receiving the command to release the traction system, the DPS can determine whether the duration of the traction cut-off state has reached the second preset duration.

[0061] This application does not specifically limit the value of the second preset duration in its embodiments; it can be set according to the time required for the traction system to transition from a traction cut-off state to a stable state. For example, Figure 2 The pulse module can generate a pulse signal that lasts for 1000ms to control the holding time of the traction release command, so that the traction release command remains valid for a preset duration and then automatically ends the output.

[0062] When the traction cut-off state lasts for a second preset duration, it indicates that the traction system has stabilized in the cut-off state. The DPS then outputs a traction release command to the traction system to allow it to exit the traction cut-off state. If the duration of the traction cut-off state does not reach the second preset duration, the DPS prohibits the output of the traction release command, allowing the traction system to remain in the traction cut-off state.

[0063] Since traction cut-off and traction release correspond to opposite control actions, this embodiment of the application can avoid the traction system from executing traction release as soon as it enters the traction cut-off state by setting a second preset duration, thereby reducing the frequent switching or conflict between the two control actions.

[0064] This application embodiment outputs a traction release command after the traction cut-off state has been maintained for a second preset time, and prohibits the output of the traction release command within the second preset time, so that the traction release is based on the traction system being stably in the cut-off state, thereby improving the stability of the traction control process.

[0065] In one possible implementation, the partitioned traction cutoff control method provided in this application embodiment includes an initialization state in the first operating state.

[0066] Upon receiving a DPS release command, the corresponding DPS release control is executed according to the first operating state, including: Upon receiving a DPS release command and provided the initialization state is valid, execute the corresponding DPS release control.

[0067] The initialization state indicates whether the DPS is currently in the initialization phase. After receiving the release command, the DPS can determine whether the conditions for executing DPS release control are met based on the initialization state.

[0068] When the initialization state is valid, the DPS executes the corresponding DPS release control, causing the DPS to enter the corresponding running state according to the release DPS instruction. When the initialization state is invalid, it indicates that the DPS is not currently in a stage where release control can be executed, and the DPS may not execute the corresponding DPS release control.

[0069] This application embodiment uses the initialization state as the judgment condition for executing DPS release control, which can prevent DPS from responding to the release DPS command when the preset operating conditions are not met, so that DPS release control matches the current operating stage of DPS, thereby improving the accuracy and reliability of DPS release control.

[0070] In one possible implementation, the partitioned traction cutoff control method provided in this application embodiment includes a communication state in the first operating state.

[0071] Based on the control command, the first operating state, and the second operating state, the corresponding interlocking control action is executed, which also includes: When the communication status is in a communication failure state, an electronic disconnect command is output to the traction system; when the electronic disconnect command continues for a first preset duration and is in a valid state, an electrical disconnect command is output to the traction system.

[0072] The communication status is used to indicate whether the communication between the DPS and DSC is normal. The DPS can detect the communication status with the DSC in real time and determine whether a communication failure has occurred based on the communication status. When the communication status indicates a communication failure, it means that the DPS can no longer receive control commands sent by the DSC.

[0073] One possible implementation method, Figure 2 The communication fault signal can be used as one of the inputs to the electronic disconnection logic. When a communication fault is detected between the DPS and DSC, the communication fault signal participates in the interlocking operation, enabling the electronic disconnection logic to be activated even without receiving a command to disconnect the traction system, so as to execute electronic disconnection control. If the electronic disconnection state continues for a preset duration, it will continue to execute electrical disconnection control, thereby ensuring that the traction system enters a safe state in the event of communication abnormality.

[0074] This application embodiment uses the communication status as a judgment condition for interlocking control actions, enabling traction cut-off control to still be executed in the event of a communication failure, thereby improving the safety and reliability of zoned traction cut-off control.

[0075] One possible implementation is that, in the partitioned traction cutoff control method provided in this application embodiment, the first operating state includes a DPS disabled state; the method further includes: If the number of times the electrical disconnect command is executed reaches a preset number, the first operating state will be updated to the DPS disabled state; if the first operating state is the DPS disabled state, control commands other than the DPS reset command will be prohibited from being responded to.

[0076] The DPS can count the number of times an electrical disconnect command is executed and determine whether the execution count has reached a preset number. When the number of electrical disconnect commands executed reaches the preset number, the DPS updates its first operating state to the DPS disabled state and prohibits the response to control commands other than the DPS reset command, causing the DPS to stop executing new interlocking control actions and avoid continuing to respond to other control commands under abnormal operating conditions; after the DPS disabled state is lifted, the DPS resumes responding to the corresponding control commands.

[0077] This application does not specifically limit the exact number of preset times, and can be set according to actual application needs.

[0078] The embodiments of this application improve the security and reliability of the DPS operation process by entering a DPS disabled state after meeting preset conditions and limiting the response range of control commands.

[0079] One possible implementation, in the partitioned traction cutoff control method provided in this application embodiment, upon receiving a reset DPS command, includes deactivating the DPS disable state, including: When the first running state is DPS disabled, upon receiving a DPS reset command, the first running state is updated from DPS disabled to non-DPS disabled to restore the response to control commands.

[0080] After receiving the DPS reset command, the DPS can first determine whether the current first running state is the DPS disabled state.

[0081] When the first operating state indicates that the DPS is currently disabled, the DPS will update the first operating state to a non-DPS disabled state and resume the response to control commands, so that the DPS will re-execute the corresponding interlock control action; when the first operating state is not a DPS disabled state, the DPS can keep the current operating state unchanged.

[0082] This application embodiment improves the reliability of system operation by removing the DPS from its disabled state and restoring its response to control commands after receiving a reset DPS command, enabling the DPS to resume operation once the recovery conditions are met.

[0083] It should be noted that, Figure 2 The interlocking control logic shown is only one possible implementation. This application does not limit the use of this logic. Figure 2 The specific logical connection relationship shown implements the above control method. Without changing the control instructions, operating states and interlocking control relationships, other logic module combinations, state machine methods or program implementation methods can also be used to complete the corresponding control logic. This application does not limit any of these methods.

[0084] Based on the partitioned traction cutting-off control method provided in the above embodiments, this application also provides a partitioned traction cutting-off control system, which will be described below with reference to the accompanying drawings.

[0085] See Figure 3 The figure is a schematic diagram of a zoned traction cutting control system provided in an embodiment of this application.

[0086] The partitioned traction cutting control system provided in this application includes a message transceiver module 100, a signal acquisition module 200, and a logic control module 300.

[0087] The message transceiver module 100 is used to receive control commands sent by the DSC; the control commands include commands to cut off the traction system, release the traction system, release the DPS, and reset the DPS.

[0088] The signal acquisition module 200 is used to acquire the first operating state of the DPS and the second operating state of the traction system.

[0089] The logic control module 300 is used to execute corresponding interlocking control actions according to control instructions, a first operating state, and a second operating state. Specifically, upon receiving a traction system cut-off instruction, it outputs a traction cut-off command to the traction system to control the traction system to perform traction cut-off; upon receiving a traction system release instruction, it outputs a traction release command to the traction system to control the traction system to restore traction power supply; upon receiving a DPS release instruction, it executes corresponding DPS release control according to the first operating state; and upon receiving a DPS reset instruction, it deactivates the DPS disable state.

[0090] The message transceiver module 100, the signal acquisition module 200, and the logic control module 300 can work together to complete the zoned traction cutoff control.

[0091] The zoned traction cutting-off control system provided in this application improves the reliability and modularity of zoned traction cutting-off control by setting up a message transmission and reception module, a logic control module, and a signal acquisition module, so as to form a complete control flow of receiving control commands, acquiring operating status, processing interlocking logic, and outputting control commands.

[0092] The following description, in conjunction with the accompanying drawings, details the partitioned traction cutting control system provided in the embodiments of this application.

[0093] See Figure 4 The figure is a schematic diagram of another partitioned traction cutting control system provided in an embodiment of this application.

[0094] One possible implementation is to use redundant communication for message communication. The message transceiver module can receive and send messages through multiple communication channels. When one communication channel fails, the remaining communication channels can still complete the corresponding message exchange, thereby improving communication reliability.

[0095] Specifically, the message transceiver module may include multiple ring network communication modules and multiple optical bypass modules.

[0096] The ring network communication module is used to establish a communication connection between DPS and DSC, receive control commands sent by DSC and send corresponding control results.

[0097] Optical bypass modules are used to maintain the connectivity of optical fiber communication links when the corresponding communication link is abnormal, so as to reduce the impact of single-path failure on message communication and improve the reliability of message communication.

[0098] In one possible implementation, the signal acquisition module can be implemented using a redundant acquisition method.

[0099] Control signals and status signals input to the zone traction cutoff control module can be sent to multiple signal acquisition units for acquisition, and the acquisition results can be sent to the logic processing submodule. When one signal acquisition unit fails, the remaining signal acquisition units can still continue to acquire the corresponding signals, thereby improving the reliability of the module.

[0100] Specifically, each signal acquisition unit may include a bus management unit, a digital output (DO) unit, and a digital input (DI) unit.

[0101] The bus management unit interacts with the logic control module and manages the DO and DI units. The DI unit acquires the DPS operating status, traction system operating status, and field device feedback signals, and sends them to the logic control module. The DO unit outputs corresponding control signals based on the control results generated by the logic control module to control the traction system to perform corresponding control actions. Multiple signal acquisition units can independently acquire and output their respective signals, improving the reliability of field signal processing.

[0102] One possible implementation is that the logic control module provided in this application embodiment may include a logic processing submodule, a signal allocation submodule, a signal voting submodule, and a panel operation submodule.

[0103] The message transmission and reception module, signal acquisition module, and various submodules are interconnected via internal communication. The logic processing submodule handles interlocking control logic processing, the signal distribution and signal voting submodules improve the reliability of control signal processing, and the panel operation submodule performs on-site operation functions. These modules and submodules work together to achieve zoned traction cutoff control.

[0104] In one possible implementation, the logic processing submodule can adopt a redundant logic control architecture, which includes multiple logic processing units.

[0105] Multiple logic processing units execute the interlocking control logic in this embodiment and complete subsequent control processing based on their respective generated control results. When some logic processing units fail, the remaining logic processing units can still continue to execute the corresponding interlocking control logic to improve the reliability of the zone traction cutoff control module.

[0106] Specifically, each logic processing unit may include a main processor, a ring network communication unit, and an I / O communication unit.

[0107] The main processor executes the interlocking control logic in this embodiment and generates corresponding control results based on control commands, the first operating state, and the second operating state. The ring network communication unit communicates with the message transceiver module to receive control commands and send logic processing results. The I / O communication unit communicates with the signal acquisition module to obtain the status information collected on-site and sends corresponding control information to the signal acquisition module.

[0108] In one possible implementation, the signal distribution submodule is used to send the field input signals to multiple signal acquisition units respectively.

[0109] For example, the same field input signal can be sent to multiple DI units for acquisition, so that multiple logic processing units can obtain the corresponding input signal and execute interlocking control logic, thereby reducing the impact of single-path failure on control results and improving system reliability.

[0110] In one possible implementation, the signal voting submodule is used to determine the final control result based on the control results generated by multiple logic processing units.

[0111] For example, the signal voting submodule can make a consistency judgment on multiple control results and generate a final control signal based on the judgment result, which is then sent to the traction system to reduce the risk of erroneous control output caused by the abnormality of a single logic processing unit and improve the reliability of the control results.

[0112] In one possible implementation, the panel operation submodule is used to receive on-site operation information and send it to the logic processing submodule.

[0113] For example, the panel operation submodule can receive field input commands such as release DPS, release traction system, disconnect traction system, and reset DPS, and send them to the logic processing submodule to execute the corresponding interlocking control logic.

[0114] The embodiments of this application do not specifically limit the number of each redundant unit, which can be set according to actual control requirements. Figure 4 This is for illustrative purposes only and is not intended to impose any specific limitations.

[0115] In one possible implementation, the zoned traction disconnection control system can also have a self-diagnostic function. The zoned traction disconnection control system can monitor the program running status, communication status, signal acquisition status, and power supply status; when an abnormal state is detected, it can output corresponding control results according to a preset safety strategy to improve the reliability and safety of module operation.

[0116] Based on the partitioned traction cutoff control method provided in the above embodiments, this application also provides a controller for executing the partitioned traction cutoff control method provided in any of the above embodiments.

[0117] The controller provided in this application embodiment may include software to implement the control methods described above. Alternatively, the controller provided in this application embodiment may include hardware to implement the control methods described above. Or, the controller provided in this application embodiment may include both software and hardware, using a combination of software and hardware to execute the control methods described above.

[0118] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0119] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A zoned traction cutoff control method, characterized in that, The method is applied to a partitioned traction cutoff system (DPS) built on the FirmSys platform. The DPS is communicatively connected to both the partitioned safety computer (DSC) and the traction system. The method is executed by the DPS and includes: Receive control commands sent by the DSC; the control commands include commands to disconnect the traction system, release the traction system, release the DPS, and reset the DPS. Obtain the first operating state of the DPS and the second operating state of the traction system; Execute the corresponding interlocking control action according to the control command, the first operating state, and the second operating state; Specifically, upon receiving the instruction to cut off the traction system, a traction cut-off command is output to the traction system to control the traction system to perform traction cut-off; upon receiving the instruction to release the traction system, a traction release command is output to the traction system to control the traction system to restore traction power supply; upon receiving the DPS release command, the corresponding DPS release control is executed according to the first operating state; and upon receiving the DPS reset command, the DPS disabled state is lifted.

2. The method according to claim 1, characterized in that, Upon receiving the instruction to cut off the traction system, the step of outputting a traction cut-off command to the traction system includes: Upon receiving the instruction to cut off the traction system, an electronic cut-off command is output to the traction system; When the electronic cut-off command lasts for a first preset duration and is in a valid state, an electrical cut-off command is output to the traction system.

3. The method according to claim 2, characterized in that, The second operating state includes an electronically cut-off state; The electronic cutoff command is in a valid state, including: The electronic cut-off command is determined to be valid based on the electronic cut-off status.

4. The method according to claim 1, characterized in that, The second operating state includes the traction cut-off state; Upon receiving the release command from the traction system, the step of outputting a traction release command to the traction system includes: Upon receiving the release command for the traction system and while the traction cut-off state continues for a second preset duration, a traction release command is output to the traction system. The release traction system command shall be prohibited from being output within the second preset time period.

5. The method according to claim 1, characterized in that, The first operating state includes the initialization state; Upon receiving a DPS release command, the step of executing corresponding DPS release control according to the first operating state includes: Upon receiving a DPS release command and provided the initialization state is valid, the corresponding DPS release control is executed.

6. The method according to claim 2, characterized in that, The first operating state includes the communication state; The step of executing the corresponding interlocking control action according to the control command, the first operating state, and the second operating state further includes: In the event of a communication failure, an electronic disconnect command is output to the traction system. When the electronic cut-off command lasts for a first preset duration and is in a valid state, an electrical cut-off command is output to the traction system.

7. The method according to claim 2, characterized in that, The first operating state includes a DPS disabled state; the method further includes: If the number of times the electrical disconnect command is executed reaches a preset number, the first operating state will be updated to the DPS disabled state; When the first operating state is DPS disabled, control commands other than the DPS reset command are prohibited from being responded to.

8. The method according to claim 7, characterized in that, Upon receiving a DPS reset command, the step of lifting the DPS disable status includes: When the first operating state is DPS disabled, upon receiving the reset DPS command, the first operating state is updated from the DPS disabled state to the non-DPS disabled state to restore the response to the control command.

9. A zoned traction cutting-off control system, characterized in that, include: Message transceiver module, signal acquisition module, and logic control module; The message transceiver module is used to receive control commands sent by the DSC; the control commands include commands to cut off the traction system, release the traction system, release the DPS, and reset the DPS. The signal acquisition module is used to acquire the first operating state of the DPS and the second operating state of the traction system; The logic control module is used to execute corresponding interlocking control actions according to the control command, the first operating state, and the second operating state; wherein, upon receiving the traction system cut-off command, it outputs a traction cut-off command to the traction system to control the traction system to perform traction cut-off; upon receiving the traction system release command, it outputs a traction release command to the traction system to control the traction system to restore traction power supply; upon receiving the DPS release command, it executes the corresponding DPS release control according to the first operating state; and upon receiving the DPS reset command, it releases the DPS disable state.

10. A controller, characterized in that, Used to perform the partitioned traction cut-off control method according to any one of claims 1-8.

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