Direct current switch simulation system and method, and storage medium and electronic device

Abstract

The application discloses a DC turnout simulation system and method, a storage medium and an electronic device, and relates to the technical field of simulation systems, and aims to provide a DC turnout simulation system and method, a storage medium and an electronic device. The system comprises a driving detection module, a state machine control module and a state simulation module. The driving detection module is used for detecting the driving state of a turnout and outputting corresponding driving state information. The state machine control module is connected with the driving detection module, and the state machine control module is used for outputting corresponding driving control signals according to the driving state information. The state simulation module is connected with the state machine control module, and the state simulation module is used for performing state simulation on the corresponding driving state according to the driving control signals. The application provides convenience for DC turnout simulation testing and verification, and improves the accuracy of testing and verification results.

Description

Technical Field

[0001] This invention relates to the field of turnout drive control technology, and in particular to a DC turnout simulation system and method, as well as a storage medium and electronic equipment. Background Technology

[0002] In a fully electronic interlocking system, the DC turnout drive unit implements the basic functions of driving and indicating the return of four- or six-wire turnouts. During the testing and verification phase, it is also necessary to simulate different conditions under which the DC turnout switch machine operates, and to test and verify the response strategy of the DC turnout drive unit under these conditions. Furthermore, the system integration process must also meet certain automated testing requirements.

[0003] However, the research, development, debugging, and testing of DC turnout switch machines present the following challenges: When simulating the operation of multiple switch machines under certain conditions, the large weight and complex wiring of real switch machines necessitate frequent wiring changes, increasing the risk of errors or hazards and making flexible configuration when adding or removing multiple turnout switch machines difficult. Furthermore, real switch machines are mechanical devices, making precise timing of their rotation difficult. The load on a real switch machine is an electric motor; under rated voltage, the stable current during coil drive is relatively fixed, making adjustable drive current impossible. Switch machine switching requires driving the switch machine or manually cranking the turnout, hindering rapid automatic turnout switching tests. To address these technical issues and meet multi-faceted testing requirements, an auxiliary system is urgently needed to make turnout drive testing, verification, and validation more complete. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, the first objective of the present invention is to provide a DC turnout simulation system that facilitates DC turnout simulation testing and verification, and improves the accuracy of test and verification results.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A DC turnout simulation system, comprising:

[0007] The drive detection module is used to detect the drive status of the turnout and output the corresponding drive status information.

[0008] A state machine control module is connected to the drive detection module. The state machine control module is used to output a corresponding drive control signal according to the drive state information.

[0009] A state simulation module is connected to the state machine control module. The state simulation module is used to simulate the corresponding drive state according to the drive control signal.

[0010] Optionally, the DC turnout simulation system is applied to the turnout control circuit, and the drive detection module is specifically used for:

[0011] The voltage between each control line and the common line in the turnout control circuit is detected to determine the driving state of the turnout through the voltage. The driving state of the turnout includes at least one of the following: positioning driving state, positioning indication state, reverse driving state, and reverse indication state.

[0012] Optionally, the drive control signal includes a turnout drive timing control signal, and the state machine control module performs timing control on the turnout drive through the turnout drive timing control signal.

[0013] Optionally, the state simulation module includes:

[0014] The relay combination submodule is connected to the state machine control module. The relay combination submodule is used to switch the corresponding position of the contacts according to the drive control signal to simulate the corresponding drive state.

[0015] Optionally, the DC turnout simulation system further includes:

[0016] The load module is used to simulate the load of the switch machine that drives the turnout;

[0017] An on / off control module is connected to the state machine control module and the load module. The on / off control module is used to perform delayed on / off control on the load module according to the drive control signal.

[0018] Optionally, the DC turnout simulation system is integrated into the simulation board, and the load module is a board-mounted load set in the simulation board. The load module is used to realize preset drive current control.

[0019] Optionally, the load module is an external electronic load used to achieve adjustable control of the drive current.

[0020] Optionally, the DC turnout simulation system further includes a manual turnout switching module connected to the state machine control module. The manual turnout switching module is used to provide a turnout switching signal so that the state machine control module performs corresponding turnout drive control according to the turnout switching signal.

[0021] To achieve the above objectives, the present invention also provides a DC turnout simulation method, applied to the aforementioned DC turnout simulation system, comprising:

[0022] Detect the drive status of the turnout and output the corresponding drive status information;

[0023] The corresponding drive control signal is output based on the drive state information, and the corresponding drive state is simulated based on the drive control signal.

[0024] Optionally, the DC turnout simulation system is applied to the turnout control circuit, and the step of detecting the turnout's driving state includes:

[0025] The voltage between each control line and the common line in the turnout control circuit is detected to determine the turnout's driving state.

[0026] Optionally, the step of simulating the corresponding drive state based on the drive control signal includes:

[0027] The relay contacts are switched to corresponding positions according to the drive control signal to simulate the corresponding drive state.

[0028] Optionally, the method further includes: performing delayed on / off control on the simulated load of the switch machine according to the drive control signal, and performing timing control on the turnout drive.

[0029] Optionally, the method further includes: receiving an externally given turnout switching signal and performing corresponding turnout drive control according to the turnout switching signal.

[0030] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the DC turnout simulation method described above.

[0031] To achieve the above objectives, a fourth aspect of the present invention provides an electronic device, including a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it implements the DC turnout simulation method described above.

[0032] This invention has at least the following technical effects:

[0033] This invention detects the drive status of a turnout using a drive detection module and outputs corresponding drive status information. Then, a state machine control module outputs corresponding drive control signals based on the drive status information. Finally, a state simulation module simulates the corresponding drive status based on the drive control signals, thus completing the construction of a turnout simulation system. This simplifies system setup and allows for more convenient configuration. Furthermore, by connecting the system to an external DC turnout drive unit via fixed wiring, flexible configuration can be achieved when adding or removing multiple turnout switch machines. Additionally, this invention enables adjustable turnout drive current through an external electronic load, and delay control of the load switching allows for arc-extinguishing protection of relay contacts during high-current switching. Moreover, the timing control of the drive control improves the accuracy of testing and verification, and the hand-cranked turnout switching module provides the turnout switching signal, avoiding manual operation of the turnout and facilitating rapid automatic switching tests.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is a structural block diagram of the DC turnout simulation system provided in the first embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the working principle of a DC turnout simulation system provided in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the switching of various drive states of a turnout provided in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of relay contact control provided in an embodiment of the present invention;

[0039] Figure 5 This is a structural block diagram of the DC turnout simulation system provided in the second embodiment of the present invention;

[0040] Figure 6 This is a structural block diagram of a DC turnout simulation system provided in the third embodiment of the present invention;

[0041] Figure 7 A flowchart of a DC turnout simulation method provided in one embodiment of the present invention. Detailed Implementation

[0042] The following describes this embodiment in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0043] The DC turnout simulation system and method, as well as the storage medium and electronic equipment of this embodiment, are described below with reference to the accompanying drawings.

[0044] Figure 1 This is a structural block diagram of a DC turnout simulation system provided in an embodiment of the present invention. Figure 1 As shown, the DC turnout simulation system 10 includes: a drive detection module 11, a state machine control module 12, and a state simulation module 13.

[0045] The drive detection module 11 is used to detect the drive status of the turnout and output the corresponding drive status information; the state machine control module 12 is connected to the drive detection module 11 and is used to output the corresponding drive control signal according to the drive status information; the state simulation module 13 is connected to the state machine control module 12 and is used to perform state simulation on the corresponding drive status according to the drive control signal.

[0046] Specifically, such as Figure 2 As shown, the DC turnout simulation system 10 is connected to the DC turnout drive unit via wiring. When the DC turnout drive unit performs positioning drive or reverse position drive, it can detect the current turnout drive state, such as positioning drive state, positioning indication state, reverse position drive state, or reverse position indication state, through the drive detection module 11. For example, if the positioning drive state is detected, the corresponding drive state information is output. The state machine control module 12, such as the FPGA (Field-Programmable Gate Array) state machine control module, after receiving the positioning drive state information, outputs a positioning drive control signal to the state simulation module 13. The state simulation module 13 simulates the corresponding operation to respond according to the positioning drive control signal.

[0047] In one embodiment of the present invention, the DC turnout simulation system 10 is applied to the turnout control circuit, and the drive detection module 11 is specifically used to detect the voltage between each operating line and the common line in the turnout control circuit, so as to determine the drive state of the turnout through the voltage.

[0048] The turnout control circuit in this embodiment is a six-wire turnout control circuit, which includes operating lines X1, X2, X5, and X6, a circuit common line X3, and a motor start common line X4. X1 and X5 represent the positioning operating line and the positioning indication line, respectively, while X2 and X6 represent the reversing operating line and the reversing indication line, respectively. When the voltage between X2, X6, and X4 is 220V DC, the drive detection module 11 outputs drive status information (high level X2_X6_fc_active = 1) when the detection is valid, and outputs low level X2_X6_fc_active = 0 when the detection is invalid. Similarly, when the voltage between X1, X5, and X4 is 220V DC, the drive detection module 11 outputs drive status information (high level X1_X5_dc_active = 1) when the detection is valid, and outputs low level X1_X5_dc_active = 0 when the detection is invalid. Therefore, when the DC turnout drive unit is performing reverse drive, if the drive detection module 11 detects that the voltage between reverse drive X2X6 and X4 is 220V and the detection is valid, it can determine that the current drive state is reverse drive state and output the X2_X6_fc_active=1 high-level signal, which is the drive state information.

[0049] like Figure 3 As shown, after receiving the high-level signal X2_X6_fc_active=1, the state machine control module 12 responds and switches the turnout from the positioning indication state to the reverse position drive state. Then, it outputs the reverse position drive control signal so that the state simulation module 13 can perform reverse position drive state simulation.

[0050] Similarly, when the DC turnout drive unit is performing positioning drive, if the drive detection module 11 detects that the voltage between positioning drive X1X5 and X4 is 220V and the detection is valid, it can determine that the current drive state is the positioning drive state and output a high-level signal X1_X5_fc_active = 1, which is the drive state information. For example, after receiving the high-level signal X1_X5_fc_active = 1, the state machine control module 12 responds and switches the turnout from the reverse position indication state to the positioning drive state, and then outputs a positioning drive control signal to enable the state simulation module 13 to perform positioning drive state simulation.

[0051] In one embodiment of the present invention, such as Figure 2 As shown, the state simulation module 13 includes a relay combination submodule. The relay combination submodule is connected to the state machine control module 12, and is used to switch the corresponding positions of the contacts according to the drive control signal to simulate the corresponding drive state.

[0052] In this embodiment, the relay combination submodule switches the position of the relay according to the drive control signal output by the state machine control module 12, so that its contacts simulate the state of the switch. The basic switch states include positioning drive, positioning indication, reverse position drive, reverse position indication, and loss indication state.

[0053] For example, after the relay combination submodule receives the reverse drive control signal, such as Figure 4 As shown, it can be determined that the current turnout is in the S1_fc reverse drive state, so that contacts 41-42 and 43-44 can be closed, and contacts 11-12 and 13-14 can be closed to respond to the reverse drive control signal.

[0054] In this embodiment, the drive control signal includes a turnout drive timing control signal, and the state machine control module 12 performs timing control on the turnout drive through the turnout drive timing control signal.

[0055] Specifically, if the current turnout is in the S1_fc reverse drive state, the state machine control module 12 can set the reverse drive time fc_time_is_up = 1 through the timer, and then output the turnout drive timing control signal with the drive time set, so as to perform timing control on the turnout drive.

[0056] In one embodiment of the present invention, such as Figure 5 As shown, the DC turnout simulation system 10 also includes a load module 14 and an on / off control module 15.

[0057] The load module 14 is used to simulate the load of the switch machine driving the turnout; the on / off control module 15 is connected to the state machine control module 12 and the load module 14. The on / off control module 15 is used to perform delayed on / off control on the load module 14 according to the drive control signal, so as to provide arc extinguishing protection for the relay contacts during the high current on / off process.

[0058] In this embodiment, the DC turnout simulation system 10 can be integrated into a simulation board, i.e., a circuit board. The load module 14 can be a board-mounted load installed on the simulation board, thereby enabling preset drive current control. Of course, the load module can also be an external electronic load, connected to the simulation board via wiring, to achieve a wide range of precise adjustment of the drive current from 0A to the full rated drive current.

[0059] In one embodiment of the present invention, such as Figure 6 As shown, the DC turnout simulation system 10 also includes a manual turnout switching module 16. The manual turnout switching module 16 is connected to the state machine control module 12. The manual turnout switching module 16 is used to provide a turnout switching signal so that the state machine control module 12 can perform corresponding turnout drive control according to the turnout switching signal.

[0060] In this embodiment, the hand-cranked turnout switching module 16 can be a toggle switch. The toggle switch's operation simulates the positioning and reversing switching process of the hand-cranked turnout, providing a turnout switching signal to the state machine control module 12.

[0061] This invention utilizes an FPGA-based state machine response. By switching relays on and off, and combining contact connections, it simulates the state of a switch machine's opener / closer to generate a driving and indication circuit, thereby realizing the basic functions of a DC turnout switch machine. In this embodiment, the simulation system is implemented on a printed circuit board and then connected to the DC turnout drive unit via cables. This makes the simulation system more efficient to build, while simultaneously approximating the real turnout switch machine as closely as possible, thus accurately simulating the turnout driving process.

[0062] The following is combined with Figure 3 The working principle of the DC turnout simulation system 10 provided by the present invention will be described in detail.

[0063] like Figure 3 As shown, when the turnout is in the S0_db positioning indication state, according to the reverse position drive state information X2_X6_fc_active=1, or the valid signal switch_fc_active=1 given by the hand-cranked turnout switching module 16, the state machine control module 12 responds by switching the state to S1_fc and outputs drive control signals to the relay combination submodule and the on / off control module 15 to realize the control of the simulated real switch machine.

[0064] When the turnout is in the S1_fc reverse drive state, the state machine control module 12 can set the reverse drive time of the simulation system fc_time_is_up = 1. When the time is up, fc_time_is_up = 0, and the state machine control module 12 controls the turnout to switch to the S2_fb state, which is the reverse indication state.

[0065] When the turnout is in the reversed state of S2_fb, according to the positioning drive state information X1_X5_dc_active=1, or the valid signal switch_dc_active=1 given by the hand-cranked turnout switching module 16, the state machine control module 12 responds by switching to S3_dc and outputs drive control signals to the relay combination submodule and the on / off control module 15 to realize the control of the simulated real switch machine.

[0066] When the turnout is in the S3_dc positioning drive state, the positioning drive time of the simulation system can be set to dc_time_is_up = 1. When the time is up, dc_time_is_up = 0, and the state machine control module 12 controls the turnout to switch to the S0_db state.

[0067] in, Figure 3S4_no_bs represents an abnormal state caused by insufficient drive time. When in the S1_fc inverted bit drive state, the inverted bit drive time of the simulation system can be set to fc_time_is_up = 1. Before the time expires, fc_time_is_up = 1, but X2_X6_fc_active = 0 is no longer effective. At this time, the state machine control module 12 switches to the S4_no_bs state. Similarly, when in the S3_dc positioning drive state, the positioning drive time of the simulation system can be set to dc_time_is_up = 1. Before the time expires, dc_time_is_up = 1, but X1_X5_dc_active = 0 is no longer effective. At this time, the state machine control module 12 switches to the S4_no_bs state.

[0068] When the S4_no_bs exception state is exited, a re-driving is required. Specifically, the inverting driver X2_X6_fc_active = 1 can transition to the S1_fc state, or the positioning driver X1_X5_dc_active = 1 can transition to the S3_dc state.

[0069] When the turnout is in the S0_db positioning indication state, a valid signal switch_fc_active = 1 can be given through the manual turnout switching module 16 to enter the S1_fc reverse position drive state; when the turnout is in the S2_fb reverse position indication state, a valid signal switch_dc_active = 1 can be given through the manual turnout switching module 16 to enter the S3_dc positioning drive state.

[0070] Figure 7 This is a flowchart illustrating a DC turnout simulation method according to an embodiment of the present invention. This DC turnout simulation method is applied to the aforementioned DC turnout simulation system, such as... Figure 7 As shown, the method includes:

[0071] Step S1: Detect the drive status of the turnout and output the corresponding drive status information.

[0072] Specifically, the DC turnout simulation system is applied to the turnout control circuit. In this embodiment, the step of detecting the drive state of the turnout includes: detecting the voltage between each operating line and the common line in the turnout control circuit, so as to determine the drive state of the turnout through the detected voltage.

[0073] Step S2: Output the corresponding drive control signal according to the drive status information, and perform state simulation on the corresponding drive status according to the drive control signal.

[0074] The step of simulating the corresponding drive state according to the drive control signal includes: switching the relay contacts to the corresponding positions according to the drive control signal to simulate the corresponding drive state.

[0075] In one embodiment of the present invention, the method further includes: performing delayed on / off control on the simulated load of the switch machine according to the drive control signal, and performing timing control on the turnout drive.

[0076] In one embodiment of the present invention, the method further includes: receiving an externally given turnout switching signal, and performing corresponding turnout drive control according to the turnout switching signal.

[0077] It should be noted that the specific implementation method of the DC turnout simulation method in this embodiment can be found in the specific implementation method of the DC turnout simulation system described above. To avoid redundancy, it will not be repeated here.

[0078] Furthermore, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described DC turnout simulation method.

[0079] Furthermore, the present invention also provides an electronic device, including a memory storing a computer program, which, when executed by a processor, implements the aforementioned DC turnout simulation method.

[0080] In summary, this invention detects the drive status of the turnout through a drive detection module and outputs corresponding drive status information. Then, a state machine control module outputs corresponding drive control signals based on the drive status information. Finally, a state simulation module simulates the corresponding drive status based on the drive control signals, thereby completing the construction of a turnout simulation system. This makes system construction simpler and more convenient. Furthermore, by connecting this system to an external DC turnout drive unit through fixed wiring, flexible configuration can be achieved when adding or removing multiple turnout switch machines. In addition, this invention enables adjustable turnout drive current through an external electronic load, and arc extinguishing protection for relay contacts during high-current switching is achieved through load on / off delay control. Moreover, the timing control of the drive control improves the accuracy of testing and verification, and the turnout switching signal is provided by a manual turnout switching module, avoiding manual operation of the turnout and facilitating rapid automatic switching tests.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A DC turnout simulation system, characterized in that, The DC turnout simulation system is applied to the turnout control circuit and includes: The drive detection module is used to detect the voltage between each control line and the common line in the turnout control circuit, so as to determine the drive state of the turnout through the voltage and output the corresponding drive state information; the turnout control circuit is a six-wire turnout control circuit. A state machine control module is connected to the drive detection module. The state machine control module is used to output a corresponding drive control signal according to the drive state information. The state machine control module is also used to switch to an abnormal state when the drive time is insufficient. A state simulation module is connected to the state machine control module. The state simulation module is used to simulate the corresponding drive state according to the drive control signal. A load module is used to simulate the load of a switch machine driving a turnout. The load module is an external electronic load used to achieve adjustable control of the drive current. An on / off control module is connected to the state machine control module and the load module. The on / off control module is used to perform delayed on / off control on the load module according to the drive control signal.

2. The DC turnout simulation system as described in claim 1, characterized in that, The driving states of the turnout include at least one of the following: positioning driving state, positioning indication state, reverse position driving state, and reverse position indication state.

3. The DC turnout simulation system as described in claim 2, characterized in that, The drive control signal includes a turnout drive timing control signal, and the state machine control module performs timing control on the turnout drive through the turnout drive timing control signal.

4. The DC turnout simulation system as described in claim 1, characterized in that, The state simulation module includes: The relay combination submodule is connected to the state machine control module. The relay combination submodule is used to switch the corresponding position of the contacts according to the drive control signal to simulate the corresponding drive state.

5. The DC turnout simulation system as described in claim 1, characterized in that, The DC turnout simulation system is integrated in the simulation board, and the load module is a board-mounted load set in the simulation board. The load module is used to realize preset drive current control.

6. The DC turnout simulation system as described in claim 1, characterized in that, Also includes: A hand-cranked turnout switching module is connected to the state machine control module. The hand-cranked turnout switching module is used to provide a turnout switching signal so that the state machine control module can perform corresponding turnout drive control according to the turnout switching signal.

7. A DC turnout simulation method, applied to a DC turnout simulation system as described in any one of claims 1-6, characterized in that, include: Detect the drive status of the turnout and output the corresponding drive status information; The corresponding drive control signal is output based on the drive state information, and the corresponding drive state is simulated based on the drive control signal.

8. The DC turnout simulation method as described in claim 7, characterized in that, The DC turnout simulation system is applied to the turnout control circuit, and the steps for detecting the turnout's driving state include: The voltage between each control line and the common line in the turnout control circuit is detected to determine the turnout's driving state.

9. The DC turnout simulation method as described in claim 7, characterized in that, The steps for simulating the corresponding drive state based on the drive control signal include: The relay contacts are switched to corresponding positions according to the drive control signal to simulate the corresponding drive state.

10. The DC turnout simulation method as described in claim 7, characterized in that, Also includes: The simulated load of the switch machine is controlled by delay based on the drive control signal, and the turnout drive is controlled by timing.

11. The DC turnout simulation method as described in claim 7, characterized in that, Also includes: It receives an externally given turnout switching signal and performs corresponding turnout drive control based on the turnout switching signal.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the DC turnout simulation method as described in any one of claims 7-11.

13. An electronic device, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program, which, when executed by the processor, implements the DC turnout simulation method as described in any one of claims 7-11.

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