A direct current point machine controller based on a pulse generator

Abstract

The application discloses a direct current switch machine controller based on a pulse generator, which comprises a CPU unit, a pulse signal generator unit, an interface unit for controlling switch machine action and collecting position information of the switch machine, a communication interface module connected with the CPU unit for sending control information of a host computer to the CPU unit, and a power module connected with the CPU unit, the pulse signal generator unit, the interface unit and the communication interface module respectively for providing electric energy for the switch machine controller. The switch machine controller provided by the embodiment can be arranged flexibly at a trackside device, can realize remote centralized control, and can complete control and state collection of the trackside device only by using a power cable, so that construction, operation and maintenance costs are reduced.

Description

Technical Field

[0001] This invention relates to the field of railway signal circuit technology, and more specifically to a DC switch machine controller based on a pulse generator. Background Technology

[0002] At present, most domestic computer interlocking systems control trackside DC switch machines through relay combinations and fully electronic actuators. Indoor systems require the installation of various combinations and the laying of various interface cables or combination loops, which takes up a large area; outdoor systems require a large number of trunk cables.

[0003] With the increasing demand for informatization and networking in railway systems, the existing technology for controlling trackside DC switch machines has two types of computer interlocking that require laying a large number of cables, resulting in high construction difficulty, long construction period, and high maintenance cost. Summary of the Invention

[0004] The purpose of this invention is to provide a DC switch machine controller based on a pulse generator. It aims to solve the problems of existing technologies for controlling trackside DC switch machines, which require laying a large number of cables, resulting in high construction difficulty, long construction periods, and high maintenance costs.

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

[0006] This invention provides a DC switch machine controller based on a pulse generator, comprising:

[0007] CPU unit;

[0008] A pulse signal generator unit is connected to the CPU unit, receives control commands from the CPU unit, and generates pulse signals according to the control commands and sends them to the CPU unit.

[0009] An interface unit, which is connected to the CPU unit and the pulse signal generator unit respectively, is used to control the switch machine's operation and collect the switch machine's position information;

[0010] A communication interface module, which is connected to the CPU unit, is used to send control information from the main control computer to the CPU unit;

[0011] The power supply module is connected to the CPU unit, the pulse signal generator unit, the interface unit, and the communication interface module respectively, and provides power to the switch machine controller.

[0012] Preferably, the CPU unit includes: a first CPU module and a second CPU module.

[0013] The first CPU module and the second CPU module process the control information of the main control computer, respectively, to obtain a first calculation result and a second calculation result.

[0014] When the first calculation result is consistent with the second calculation result, the first CPU module and the second CPU module respectively send the control command to the pulse signal generator unit;

[0015] When the first calculation result is inconsistent with the second calculation result, the CPU unit stops sending the control command to the pulse signal generator unit.

[0016] Preferably, the pulse signal generator unit includes a pulse signal generator and a pulse sampling sensor connected thereto.

[0017] The pulse signal generator includes:

[0018] The first pulse signal generator module is connected to the CPU unit;

[0019] A second pulse signal generator module is connected to the CPU unit. The first pulse signal generator module and the second pulse signal generator module respectively receive the control commands sent by the first CPU module and the second CPU module.

[0020] The pulse sampling sensor includes:

[0021] A first pulse sampling sensor is connected to the first pulse signal generator module and receives a first pulse signal sent by the first pulse signal generator module;

[0022] The second pulse sampling sensor is connected to the second pulse signal generator module and receives the second pulse signal sent by the second pulse signal generator module.

[0023] The first pulse sampling sensor and the second pulse sampling sensor respectively send the collected first pulse signal or the second pulse signal to the CPU unit.

[0024] Preferably, the CPU unit receives the first pulse signal and the second pulse signal, analyzes the first pulse signal and the second pulse signal, and performs a consistency comparison with the control command.

[0025] Preferably, the first pulse signal and the second pulse signal are analyzed and compared with the control command for consistency, specifically as follows:

[0026] When the waveform of the first pulse signal or the second pulse signal does not conform to the set expectation or is inconsistent with the control command, it is directed to the safety side, and the CPU unit sends a cut-off command to the power module;

[0027] When the waveform of the first pulse signal or the second pulse signal meets the set expectation and is consistent with the control command, the CPU unit continues to send the control command to the pulse signal generator unit.

[0028] Preferably, the interface unit includes:

[0029] A first control circuit is connected to the first pulse sampling sensor and is used to receive the first pulse signal;

[0030] The second control circuit is connected to the second pulse sampling sensor and is used to receive the second pulse signal;

[0031] The first action sampling circuit is connected to the first control circuit, collects the status of the control relay in the first control circuit in real time, and sends the status of the control relay in the first control circuit to the first CPU module.

[0032] The second action sampling circuit, connected to the second control circuit, collects the status of the control relays in the second control circuit in real time and sends the status of the control relays in the second control circuit to the second CPU module.

[0033] The interface circuit is connected to the first control circuit and the second control circuit respectively, and is used to control the trackside switch machine.

[0034] Preferably, the interface unit further includes:

[0035] A current and voltage sampling device, which is connected to the first control circuit and the second control circuit respectively, is used to collect operating current, represent current and represent voltage;

[0036] The indicator circuit is connected to both the CPU unit and the interface circuit, and the CPU unit supplies power to the interface circuit through the indicator circuit.

[0037] Preferably, the power module includes:

[0038] An operating power module is connected to the CPU unit, the first control circuit, and the second control circuit respectively, and supplies power to the first control circuit and the second control circuit;

[0039] The power supply module is connected to both the CPU unit and the display circuit, providing power to the display circuit.

[0040] Preferably, the power supply module includes:

[0041] Positive and negative terminals of the operating power interface;

[0042] A power supply sampling device is connected to the positive and negative terminals of the power supply interface.

[0043] A cutting-off device is connected to the CPU unit and the operating power sampling device respectively, receives control signals sent by the CPU unit, and controls the input of the operating power module according to the control signals sent by the CPU unit.

[0044] An action power output interface is provided, which is connected to the control relays in the first control circuit and the second control circuit respectively, to supply power to the control relays.

[0045] Preferably, the power supply module includes:

[0046] Indicates a transformer;

[0047] A power sampling device is provided, which is connected to the CPU unit and the power transformer respectively. The power sampling device samples the voltage of the power supply and sends the voltage of the power supply to the CPU unit.

[0048] The power output interface is connected to both the power sampling device and the display circuit to supply power to the display circuit.

[0049] Preferably, the first control circuit includes:

[0050] The first action unit is connected to the first pulse sampling sensor and receives the first pulse signal.

[0051] It also includes a first control relay, a second control relay, and a third control relay, which are respectively connected to the first action unit.

[0052] When the first action unit receives three consecutive pulse signals that meet the set expectations, the action power module supplies power to the first control relay, the second control relay and the third control relay to control the interface circuit.

[0053] Preferably, the second control circuit includes:

[0054] The second action unit is connected to the second pulse sampling sensor and receives the second pulse signal.

[0055] It also includes a fourth control relay, a fifth control relay, and a sixth control relay, which are respectively connected to the second action unit.

[0056] When the second action unit receives three consecutive pulse signals that meet the set expectations, the action power module supplies power to the fourth control relay, the fifth control relay and the sixth control relay to control the interface circuit.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] This invention provides a DC switch machine controller based on a dynamic pulse generator, which integrates a multi-mode communication module, a pulse generator, and a current acquisition device to achieve control and status acquisition of the trackside switch machine. This invention can be flexibly deployed at the trackside equipment location, enabling remote centralized control. It only requires a power cable to complete the control and status acquisition of the trackside equipment, reducing construction, operation, and maintenance costs. Attached Figure Description

[0059] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0060] Figure 1 A schematic diagram of the DC switch machine controller provided in an embodiment of the present invention;

[0061] Figure 2 A schematic diagram of a DC switch machine controller interface unit provided in an embodiment of the present invention;

[0062] Figure 3 A schematic diagram of a representation circuit provided in an embodiment of the present invention;

[0063] Figure 4 A schematic diagram of a communication interface module provided in an embodiment of the present invention;

[0064] Figure 5 This is a schematic diagram of an action power supply module provided in an embodiment of the present invention;

[0065] Figure 6 A schematic diagram of a power module is provided for one embodiment of the present invention;

[0066] Figure 7 This is a schematic diagram illustrating the principle of the reversal to positioning action according to an embodiment of the present invention;

[0067] Figure 8 A schematic diagram illustrating the principle of location representation acquisition provided in an embodiment of the present invention;

[0068] Figure 9This is a schematic diagram illustrating the principle of positioning to reverse position according to an embodiment of the present invention;

[0069] Figure 10 This is a schematic diagram illustrating the principle of inverted bit representation acquisition according to an embodiment of the present invention. Detailed Implementation

[0070] The following is in conjunction with the appendix Figures 1 to 10 The following detailed description of the proposed DC switch machine controller based on a pulse generator further illustrates the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0071] Given that the existing technology for controlling trackside DC switch machines requires laying a large number of cables, it is difficult to construct, has a long construction period, and high maintenance costs.

[0072] refer to Figure 1 As shown, this embodiment provides a DC switch machine controller based on a pulse generator, including: a CPU unit, a pulse signal generator unit, an interface unit, a communication interface module, and a power supply module.

[0073] The CPU unit includes a first CPU module and a second CPU module. The first CPU module and the second CPU module process the control information of the main control computer to obtain a first calculation result and a second calculation result, respectively. When the first calculation result is consistent with the second calculation result, the first CPU module and the second CPU module respectively send the control command to the pulse signal generator unit; when the first calculation result is inconsistent with the second calculation result, the CPU unit stops sending the control command to the pulse signal generator unit.

[0074] The pulse signal generator unit is connected to the CPU unit, receives control commands from the CPU unit, and generates pulse signals according to the control commands and sends them to the CPU unit; the pulse signal generator unit includes a pulse signal generator and a pulse sampling sensor connected thereto.

[0075] In this embodiment, the pulse signal generator includes: a first pulse signal generator module connected to the CPU unit; and a second pulse signal generator module connected to the CPU unit. The first pulse signal generator module and the second pulse signal generator module respectively receive the control commands sent by the first CPU module and the second CPU module.

[0076] In this embodiment, the pulse sampling sensor includes: a first pulse sampling sensor connected to the first pulse signal generator module to receive a first pulse signal sent by the first pulse signal generator module; and a second pulse sampling sensor connected to the second pulse signal generator module to receive a second pulse signal sent by the second pulse signal generator module.

[0077] The first pulse sampling sensor and the second pulse sampling sensor respectively send the collected first pulse signal or the second pulse signal to the CPU unit.

[0078] The CPU unit receives the first pulse signal and the second pulse signal, analyzes them, and compares their consistency with the control command. Specifically: when the waveform of the first pulse signal or the second pulse signal does not conform to the set expectation or is inconsistent with the control command, the CPU unit sends a cut-off command to the power module, indicating a safety bias; when the waveform of the first pulse signal or the second pulse signal conforms to the set expectation and is consistent with the control command, the CPU unit continues to send the control command to the pulse signal generator unit.

[0079] The CPU unit communicates with devices such as a pulse signal generator, a first pulse sampling sensor C1, a second pulse sampling sensor C2, an interface unit, an operating power supply module, an indicator power supply module, and a communication interface module via an onboard bus.

[0080] The first CPU module and the second CPU module (i.e., CPU1 and CPU2 in the attached figure) perform a real-time consistency comparison of the calculation results. Only when the calculation results are consistent will a control command be output to pulse signal generator 1 or pulse signal generator 2. If the calculation results are inconsistent, the output will stop, thus realizing the 2oo2 function.

[0081] After receiving the positioning control command from the main control computer, the CPU unit sends a control command to pulse generator 1; after receiving the reversal control command from the main control computer, it sends a control command to pulse generator 2; after receiving the control command from the main control computer, it sends a control command to the interface module, turns on the positioning indicator circuit or the reversal indicator circuit to receive the sampling signals from the pulse sampling sensors C1 and C2, analyzes the sampling results and compares them with the control commands. When the sampling waveform does not meet the set expectations or is inconsistent with the control commands, it guides to the safety side and sends a cut-off command to the action power supply module to cut off the external output.

[0082] During the turnout rotation process, the analog quantity information sampled by A1, A1', A2, and A2' is the operating current value. After receiving the operating current information sent by A1, A1', A2, and A2', the first CPU module and the second CPU module (i.e., CPU1 and CPU2 in the attached figure) send the information to the maintenance equipment to draw the operating current curve.

[0083] After the turnout switching is completed, the first CPU module and the second CPU module receive the turnout indication current and turnout indication voltage information sampled by A1, A2, V1, and V1', and send the sampled analog quantities to the maintenance equipment. When the current or voltage is abnormal, an alarm message is given.

[0084] The CPU unit combines the current, voltage, and waveform characteristics sampled by A1, A2, V1, and V1' to determine whether the outdoor switch machine is in the correct or reverse position.

[0085] The CPU unit receives the sampling results of the action circuit sampling 1 and the action circuit sampling 2. When the control relay action does not meet the set expectations, it immediately sends a cut-off command to the action power supply module to cut off the action power supply output.

[0086] When the CPU unit does not receive an action command from the main control computer, it controls the action power supply module to cut off the action power supply to avoid erroneous output; it periodically drives the control relay to perform actions through the pulse signal generator, and detects the control relay in conjunction with the sampling results of action circuit sampling 1 and 2, without performing self-testing during the switch machine driving process.

[0087] The CPU unit controls the operation of the display circuit. During positioning operation, the control circuit sends display power to X3, X1, and X2. During reversal operation, the control circuit sends display power to X3, X5, and X6.

[0088] The CPU unit has a built-in storage chip that can store at least one log file as needed by the user.

[0089] The interface unit is connected to the CPU unit and the pulse signal generator unit respectively, and is used to control the switch machine's operation and collect the switch machine's position information.

[0090] refer to Figure 2 As shown, the interface unit in this embodiment includes: a first control circuit connected to the first pulse sampling sensor for receiving the first pulse signal; a second control circuit connected to the second pulse sampling sensor for receiving the second pulse signal; a first action sampling circuit connected to the first control circuit for real-time acquisition of the control relay status in the first control circuit and sending the control relay status in the first control circuit to the first CPU module; a second action sampling circuit connected to the second control circuit for real-time acquisition of the control relay status in the second control circuit and sending the control relay status in the second control circuit to the second CPU module; an interface circuit connected to both the first and second control circuits for controlling the trackside switch machine; a current and voltage sampling device connected to both the first and second control circuits for acquiring action current, indication current, and indication voltage; and an indication circuit connected to both the CPU unit and the interface circuit, wherein the CPU unit supplies power to the interface circuit through the indication circuit.

[0091] The circuit schematic is shown in the attached diagram; please refer to the following for details. Figure 3 As shown. The circuit includes a built-in positioning indicator circuit, a reverse positioning indicator circuit, and a common indicator circuit. After receiving a positioning operation command from the main control computer, CPU1 and CPU2 activate the positioning indicator circuit; after receiving a reverse positioning operation command from the main control computer, CPU1 and CPU2 activate the reverse positioning indicator circuit; the common indicator circuit is in a normally activated state. The positioning indicator circuit is connected to X1, the reverse positioning indicator circuit is connected to X2, and the common indicator circuit is connected to X3.

[0092] The power supply module includes: an action power supply module, which is connected to the CPU unit, the first control circuit and the second control circuit respectively, and supplies power to the first control circuit and the second control circuit; and an indication power supply module, which is connected to the CPU unit and the indication circuit respectively, and provides power to the indication circuit.

[0093] refer to Figure 5As shown, the action power module in this embodiment includes: positive and negative terminals of an action power interface; an action power sampling device connected to the positive and negative terminals of the action power interface; a cut-off device connected to the CPU unit and the action power sampling device respectively, receiving control signals sent by the CPU unit, and controlling the input of the action power module according to the control signals sent by the CPU unit; and an action power output interface connected to the control relays in the first control circuit and the second control circuit respectively, supplying power to the control relays.

[0094] refer to Figure 6 As shown, the power supply module in this embodiment includes: a power supply transformer; a power supply sampling device connected to the CPU unit and the power supply transformer respectively, wherein the power supply sampling device samples the voltage of the power supply and sends the voltage of the power supply to the CPU unit; and a power supply output interface connected to the power supply sampling device and the power supply circuit respectively, thereby supplying power to the power supply circuit.

[0095] The first control circuit (i.e. Figure 1 The control circuit 1) includes: a first action unit connected to the first pulse sampling sensor to receive the first pulse signal; and a first control relay, a second control relay, and a third control relay respectively connected to the first action unit. When the first action unit receives three consecutive pulse signals that meet a set expectation, the action power supply module consists of the first control relay, the second control relay, and the third control relay (corresponding to the attached...). Figure 1 The control relays 1 to 3 in the circuit are powered to control the interface circuit.

[0096] The second control circuit (i.e. Figure 1 The control circuit 2) includes: a second action unit connected to the second pulse sampling sensor to receive the second pulse signal; and a fourth control relay, a fifth control relay, and a sixth control relay respectively connected to the second action unit. When the second action unit receives three consecutive pulse signals that meet a set expectation, the action power supply module consists of the fourth control relay, the fifth control relay, and the sixth control relay (corresponding to the attached...). Figure 1 The control relays 4 to 6 in the circuit are powered to control the interface circuit.

[0097] like Figure 2The interface unit shown mainly consists of control circuit 1, control circuit 2, action sampling circuit 1, action sampling circuit 2, control relays 1 to 6, interface circuits X1 to X6, display circuit, and action current, display current, and display voltage sampling devices: A1, A1', A2, A2', V1, and V1'.

[0098] In the interface unit, control circuits 1 and 2 receive pulse signals from the pulse signal generator. When three consecutive pulse signals matching the set expectations are received, a control operation is executed, activating control relays 1-3 (for positioning operations) or control relays 4-6 (for reversing operations). After the control relays are energized, the power supply from the action power module is connected, and the trackside switch machine is controlled via X1, X5, X4 or X2, X6, X4. Action circuit sampling 1 and action circuit sampling 2 collect the status of the control relays in real time and feed them back to CPU1 and CPU2. If the sampling results match the action intention of the CPU, the system will perform a control operation. Figure 1 If the output is consistent, it is maintained; otherwise, it is immediately cut off. A1, A1', A2, and A2' are responsible for sampling the operating current during turnout operation. After operation, A1 and A2 simultaneously collect both current and power waveform data and send the sampling results to CPU1 and CPU2. V1 and V1' are responsible for collecting voltage data and sending the sampling results to CPU1 and CPU2. X1 to X6 are interface circuits used to control the switch machine's operation and collect its position information.

[0099] refer to Figure 4 As shown, in this embodiment, the communication interface module is connected to the CPU unit and is used to send control information from the main control computer to the CPU unit. The communication interface can provide multiple communication methods such as Ethernet, fiber optic, Wi-Fi, 5G, and satellite, enabling it to promptly send control commands from the main control computer to the switch machine controller, and simultaneously send trackside switch machine location information to the main control computer and maintenance information to the maintenance equipment.

[0100] The power supply module is connected to the CPU unit, the pulse signal generator unit, the interface unit, and the communication interface module respectively, and provides power to the switch machine controller.

[0101] The specific workflow of the switch machine controller includes: 1. Reverse positioning operation: (Refer to...) Figure 7As shown, in this embodiment, when the switch machine is in the reverse position and needs to be positioned, the main control computer sends a positioning drive command to the turnout control module; after receiving the control command from the main control computer, CPU1 and CPU2 send a turnout control command to the pulse signal generator 1; the pulse signal sampling sensor C1 collects the pulse signal that meets the requirements and sends it to CPU1 and CPU2; after receiving three cycles of pulse signals that meet the requirements, CPU1 and CPU2 send an action command to the action power supply module to turn on the action power supply; after receiving five consecutive cycles of pulse signals that meet the set expectations, the action unit in the control circuit sends control signals to control relays 1, 2, and 3; control relays 1 and 2 send positive turnout action power to the outdoor switch machine through X1 and X5; control relay 3 sends negative turnout action power to the outdoor switch machine through X4; after receiving the action power, the switch machine motor completes the positioning action. During the switch machine operation, A1 and A1' sample the action current in real time and send it to CPU1 and CPU2; after receiving the turnout action current information, CPU1 and CPU2 send the turnout action current value to the maintenance equipment. II. Positioning Acquisition: Reference Figure 8 As shown, in this embodiment, after the switch machine is switched to the correct position, the turnout control module sends an indication power to the switch machine E via X1 and X3, as follows: Figure 9 The circuit shown communicates with the internal terminals E and J of the switch machine. A1 collects the current value, and V1 collects the voltage between X1 and X3. A1 and V1 send the current and voltage values ​​to CPU1 and CPU2 respectively. CPU1 and CPU2, combining the circuit status, current, voltage, and the indication that the power supply is in the positive half-cycle, determine that the switch machine is in the positioning position. III. Positioning to Reverse Position Operation: Refer to... Figure 9 As shown, in this embodiment, when the switch machine needs to be reversed while in the positioning position, the main control computer sends a reverse drive command to the turnout control module; after receiving the control command from the main control computer, CPU1 and CPU2 send a turnout control command to the pulse signal generator 2; the pulse signal sampling sensor C2 collects the pulse signal that meets the requirements and sends it to CPU1 and CPU2; after receiving three cycles of pulse signals that meet the requirements, CPU1 and CPU2 send an action command to the action power supply module to turn on the action power supply; after receiving five consecutive cycles of pulse signals that meet the set expectations, the action unit in the control circuit sends control signals to control relays 4, 5, and 6; control relays 5 and 6 send positive turnout action power to the outdoor switch machine through X6 and X2; control relay 4 sends negative turnout action power to the outdoor switch machine through X4; after receiving the action power, the switch machine motor completes the positioning action. During the switch machine operation, A2 and A2' sample the action current in real time and send it to CPU1 and CPU2; after receiving the turnout action current information, CPU1 and CPU2 send the turnout action current value to the maintenance equipment. IV. Reverse Position Acquisition: Reference Figure 10As shown, in this embodiment, after the switch machine is switched to the correct position, the turnout control module sends an indication power to the switch machine E via X2 and X3, as follows: Figure 9 The circuit is connected via the internal terminals E and J of the switch machine. A2 collects the current value, and V1' collects the voltage between X2 and X3. A2 and V1' send the current and voltage values ​​to CPU1 and CPU2 respectively. CPU1 and CPU2 combine the circuit status, current, voltage, and the fact that the power supply is in the negative half-cycle to determine that the switch machine is in the positioning position.

[0102] In summary, this embodiment provides a DC switch machine controller based on a pulse generator. The trackside equipment analog quantity sampling tool provided in this embodiment, compared to existing technologies, solves the drawbacks of difficulty in obtaining analog quantities, slow progress, complex tool types, and inaccurate fault location during existing station installation, commissioning, and daily maintenance. This embodiment aims to obtain trackside equipment analog quantities faster and more conveniently, saving valuable time for on-site installation, commissioning, and daily maintenance, reducing user labor intensity and operational difficulty, improving equipment stability, and reducing investment costs and equipment maintenance and operating costs.

[0103] This controller uses a multi-mode communication unit to receive control commands from the main control computer at the control center, enabling the control and status acquisition of trackside equipment. It can also provide debugging methods and maintenance suggestions based on the parameter status information of the trackside equipment. This contributes to the informatization, networking, and centralization of railway systems, reducing construction costs and maintenance difficulties. It incorporates a built-in multi-mode communication module, pulse generator, and current acquisition device to control and acquire the status of the trackside switch machine. The switch machine controller provided in this embodiment can be flexibly deployed at the trackside equipment location, enabling remote centralized control. It only requires a power cable to control and acquire the status of the trackside equipment, reducing construction, operation, and maintenance costs.

[0104] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0105] It should be noted that the apparatus and methods disclosed in the embodiments herein can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments herein. In this regard, each block in a flowchart or block diagram may represent a module, program, or part of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system to perform the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0106] In addition, the functional modules in the various embodiments of this article can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0107] 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 switch machine controller based on a pulse generator, characterized in that, include: CPU unit; A pulse signal generator unit is connected to the CPU unit, receives control commands from the CPU unit, and generates pulse signals according to the control commands and sends them to the CPU unit. An interface unit, which is connected to the CPU unit and the pulse signal generator unit respectively, is used to control the switch machine's operation and collect the switch machine's position information; A communication interface module, which is connected to the CPU unit, is used to send control information from the main control computer to the CPU unit; The power supply module is connected to the CPU unit, the pulse signal generator unit, the interface unit and the communication interface module respectively, and provides power to the switch machine controller; The pulse signal generator unit includes a pulse signal generator and a pulse sampling sensor connected thereto. The pulse signal generator includes: The first pulse signal generator module is connected to the CPU unit; A second pulse signal generator module is connected to the CPU unit. The first pulse signal generator module and the second pulse signal generator module respectively receive the control commands sent by the first CPU module and the second CPU module. The pulse sampling sensor includes: A first pulse sampling sensor is connected to the first pulse signal generator module and receives a first pulse signal sent by the first pulse signal generator module; The second pulse sampling sensor is connected to the second pulse signal generator module and receives the second pulse signal sent by the second pulse signal generator module. The first pulse sampling sensor and the second pulse sampling sensor respectively send the collected first pulse signal or the second pulse signal to the CPU unit; The CPU unit receives the first pulse signal and the second pulse signal, analyzes the first pulse signal and the second pulse signal, and compares their consistency with the control command. Specifically, the analysis and comparison are as follows: When the waveform of the first pulse signal or the second pulse signal does not conform to the set expectation or is inconsistent with the control command, it is directed to the safety side, and the CPU unit sends a cut-off command to the power module; When the waveform of the first pulse signal or the second pulse signal meets the set expectation and is consistent with the control command, the CPU unit continues to send the control command to the pulse signal generator unit.

2. The DC switch machine controller based on a pulse generator as described in claim 1, characterized in that, The CPU unit includes: a first CPU module and a second CPU module. The first CPU module and the second CPU module process the control information of the main control computer, respectively, to obtain a first calculation result and a second calculation result. When the first calculation result is consistent with the second calculation result, the first CPU module and the second CPU module respectively send the control command to the pulse signal generator unit; When the first calculation result is inconsistent with the second calculation result, the CPU unit stops sending the control command to the pulse signal generator unit.

3. The DC switch machine controller based on a pulse generator as described in claim 2, characterized in that, The interface unit includes: A first control circuit is connected to the first pulse sampling sensor and is used to receive the first pulse signal; The second control circuit is connected to the second pulse sampling sensor and is used to receive the second pulse signal; The first action sampling circuit is connected to the first control circuit, collects the status of the control relay in the first control circuit in real time, and sends the status of the control relay in the first control circuit to the first CPU module. The second action sampling circuit, connected to the second control circuit, collects the status of the control relays in the second control circuit in real time and sends the status of the control relays in the second control circuit to the second CPU module. The interface circuit is connected to the first control circuit and the second control circuit respectively, and is used to control the trackside switch machine.

4. The DC switch machine controller based on a pulse generator as described in claim 3, characterized in that, The interface unit further includes: A current and voltage sampling device, which is connected to the first control circuit and the second control circuit respectively, is used to collect operating current, represent current and represent voltage; The indicator circuit is connected to both the CPU unit and the interface circuit, and the CPU unit supplies power to the interface circuit through the indicator circuit.

5. The DC switch machine controller based on a pulse generator as described in claim 4, characterized in that, The power module includes: An operating power module is connected to the CPU unit, the first control circuit, and the second control circuit respectively, and supplies power to the first control circuit and the second control circuit; The power supply module is connected to both the CPU unit and the display circuit, providing power to the display circuit.

6. The DC switch machine controller based on a pulse generator as described in claim 5, characterized in that, The power supply module includes: Positive and negative terminals of the operating power interface; A power supply sampling device is connected to the positive and negative terminals of the power supply interface. A cutting-off device is connected to the CPU unit and the operating power sampling device respectively, receives control signals sent by the CPU unit, and controls the input of the operating power module according to the control signals sent by the CPU unit. An action power output interface is provided, which is connected to the control relays in the first control circuit and the second control circuit respectively, to supply power to the control relays.

7. The DC switch machine controller based on a pulse generator as described in claim 6, characterized in that, The power supply module includes: Indicates a transformer; A power sampling device is provided, which is connected to the CPU unit and the power transformer respectively. The power sampling device samples the voltage of the power supply and sends the voltage of the power supply to the CPU unit. The power output interface is connected to both the power sampling device and the display circuit to supply power to the display circuit.

8. The DC switch machine controller based on a pulse generator as described in claim 7, characterized in that, The first control circuit includes: The first action unit is connected to the first pulse sampling sensor and receives the first pulse signal. It also includes a first control relay, a second control relay, and a third control relay, which are respectively connected to the first action unit. When the first action unit receives three consecutive pulse signals that meet the set expectations, the action power module supplies power to the first control relay, the second control relay and the third control relay to control the interface circuit.

9. The DC switch machine controller based on a pulse generator as described in claim 8, characterized in that, The second control circuit includes: The second action unit is connected to the second pulse sampling sensor and receives the second pulse signal. It also includes a fourth control relay, a fifth control relay, and a sixth control relay, which are respectively connected to the second action unit. When the second action unit receives three consecutive pulse signals that meet the set expectations, the action power module supplies power to the fourth control relay, the fifth control relay and the sixth control relay to control the interface circuit.

Images