Dual-drive-to-single-drive integrated module box, signal cabinet and full-electronic interlocking system

Abstract

The application discloses a double-drive single-drive integrated module box, a signal cabinet and a full electronic interlocking system, and relates to the technical field of signal cabinets. The integrated module box comprises a shell, a conversion circuit board arranged in the shell, an input end of the conversion circuit board connected with two drive board cards respectively, and an output end of the conversion circuit board connected with an external load. The conversion circuit board is used for controlling any one of the two drive board cards to output a drive signal so as to drive the external load. The application can convert the double-drive board cards of the full electronic interlocking system into single-drive board cards to drive the external load, ensure the uniqueness of the output drive signal, and is safe, reliable and compatible.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a dual-drive to single-drive integrated module box, a signal cabinet, and a fully electronic interlocking system. Background Technology

[0002] The railway interlocking control system is the basic equipment for station signaling and the core guarantee equipment for railway safety. It enables the signals, routes, and switches on the routes within the station area to have mutual constraints to ensure the safety of train operation and shunting operations. At present, the industry generally adopts computer interlocking as the core technology of railway interlocking equipment.

[0003] Industry-standard fully electronic interlocking systems typically employ a 2x2 redundancy architecture, with the drive module also using a dual-system operating mode to perform data consistency comparison and output, ensuring system safety and reliability. However, with the continuous advancement and development of railway signaling equipment, higher demands are being placed on the compatibility, maintainability, size, and reliability of signaling systems. Meeting the needs of both domestic and international dual-track markets is a crucial issue that domestically produced railway signaling equipment must address in the future.

[0004] The JXWC-1700 stepless double-coil relay is the most commonly used relay in China's railways, with limited substitutability and a monopolistic application position in the railway industry. Based on this relay, the drive boards for fully electronic interlocking systems are mostly designed with a dual-drive scheme. However, in overseas railway markets, due to different signaling system application principles, some countries' railway relays do not support the two-out-of-two redundancy system architecture of fully electronic interlocking systems. Domestic drive boards often require compatibility modifications. The diverse design requirements in overseas markets, their relatively small overall scale, and their fragmented nature undoubtedly increase costs and application risks. Summary of the Invention

[0005] The purpose of this invention is to provide a dual-drive to single-drive integrated module box, signal cabinet and fully electronic interlocking system to solve the problems of high cost and application risks caused by compatibility modifications to adapt to overseas markets.

[0006] To solve the above problems, the present invention is achieved through the following technical solution: A dual-drive to single-drive integrated module box is disclosed, which is used to convert dual-drive boards of a fully electronic interlocking system into single-drive boards to drive an external load. The integrated module box includes: a housing and a conversion circuit board disposed inside the housing; the input terminals of the conversion circuit board are respectively connected to the two drive boards; the output terminal of the conversion circuit board is connected to the external load; the conversion circuit board is used to control any one of the two drive boards to output a drive signal to drive the external load.

[0007] Optionally, the conversion circuit board is provided with an input interface and an output interface; the input interface and the output interface are respectively located on both sides of the housing; the two driver boards are respectively connected to the conversion circuit board through the input interface, and the output interface is connected to the external load.

[0008] Optionally, the conversion circuit board is provided with a communication interface for enabling communication between the various integrated module boxes when there are multiple integrated module boxes.

[0009] Optionally, a fixing bracket is provided on one side of the exterior of the housing for fixing the housing.

[0010] Optionally, the conversion circuit board includes a main board, a sub-board, and a rigid-flex board, with the main board and the sub-board positioned opposite each other and spaced apart, and the sides of the main board and the sub-board connected through the rigid-flex board.

[0011] Optionally, when there are two input interfaces, they are referred to as the first input interface and the second input interface; the motherboard is provided with the first input interface, the communication interface, and the switching relay; the sub-board is provided with the second input interface and the output interface; the two driver boards are respectively connected to the first input interface and the second input interface, and the switching relay is used to control either of the two driver boards to output the drive signal to the external load through the output interface to drive the external load.

[0012] Optionally, the external load is the coil of a load gravity relay.

[0013] Optionally, the two drive boards are designated as A-series drive board VOOB16-A and B-series drive board VOOB16-B. The A-series drive board VOOB16-A includes two outputs, designated as first output VOOB16-AP and second output VOOB16-AN. The first output VOOB16-AP and second output VOOB16-AN of the A-series drive board VOOB16-A are directly connected to the coil ends of the switching relay. The two outputs of the A-series drive board VOOB16-A are also connected to the coil ends of the load gravity relay via the first normally open contact K1 and the second normally open contact K2 of the switching relay, respectively. The first output VOOB16-BP and second output VOOB16-BN of the B-series drive board VOOB16-B are connected to the coil ends of the load gravity relay via the first normally closed contact K3 and the second normally closed contact K4 of the switching relay, respectively. When the coil of the switching relay is energized and pulled up, the first normally open contact K1 and the second normally open contact K2 close, while the first normally closed contact K3 and the second normally closed contact K4 open. In this state, the first output VOOB16-AP and the second output VOOB16-AN of the A-series driver board VOOB16-A output the drive signal to directly control the coil of the load gravity relay. At this time, the output of the B-series driver board VOOB16-B has no effect on the coil of the load gravity relay. If the A-series driver board VOOB16-A malfunctions, it cannot control the coil of the switching relay. In this case, the contacts of the switching relay remain inactive, with the first normally open contact K1 and the second normally open contact K2 normally open, and the first normally closed contact K3 and the second normally closed contact K4 normally closed. When the first normally closed contact K3 and the second normally closed contact K4 are in the normally closed state, the coil of the load gravity relay is driven by the B-series drive board VOOB16-B.

[0014] Optionally, the motherboard further includes: a switching power supply and an MCU module connected to each other; the switching power supply is connected to an externally provided separate C-channel DC24V power supply, used to convert the 24V DC power output from the separate C-channel DC24V power supply into 3.3V DC power to power the MCU module; The MCU module includes an I / O module and a first bus module interface CAN1 and a second bus module interface CAN2. The I / O module is connected to the output terminal of the switching power supply through the contact K5 of the switching relay and the sixth resistor R6. The I / O module in the MCU module collects the state of the contact K5 and connects the working states of the first normally open contact K1, the second normally open contact K2, the first normally closed contact K3, and the second normally closed contact K4 of the switching relay in series with other module boxes through the first bus module interface CAN1 and the second bus module interface CAN2. The drive states of all drive boards are aggregated to the communication extension of the all-electronic interlocking system via the CAN line.

[0015] Optionally, the motherboard further includes: a status indicator light group, comprising: a first indicator light 1 and a first resistor R1 connected in series, the first indicator light 1 being connected to the output terminal of the separate C-channel power supply DC24V through the first resistor R1; a second indicator light 2 and a second resistor R2 connected in series, the second indicator light 2 being connected to the output terminal of the switching power supply through the second resistor R2; a third indicator light 3 and a third resistor R3 connected in series; one end of the series-connected third indicator light 3 and the third resistor R3 is connected to the IO module, and the other end is grounded; a fourth indicator light 4 and a fourth resistor R4 connected in series; one end of the series-connected fourth indicator light 4 and the fourth resistor R4 is connected to the IO module, and the other end is grounded; a fifth indicator light 5 and a fifth resistor R5 connected in series; one end of the series-connected fifth indicator light 5 and the fifth resistor R5 is connected to the IO module, and the other end is grounded. Regarding the first indicator light 1: when the separate C-channel power supply DC24V input of the switching power supply is normal, the first indicator light 1 is constantly lit; when the first indicator light 1 is off, there may be a fault in the DC24V input of the switching power supply. Regarding the second indicator light 2: When the output of the switching power supply is normal, the second indicator light 2 is constantly lit; when the second indicator light 2 is off, it indicates that the output of the switching power supply may be faulty. Regarding the third indicator light 3: When the third indicator light 3 is constantly lit, it indicates that the MCU module of the corresponding module box is working normally; when the third indicator light 3 is off, it indicates that the MCU module may be faulty. Regarding the fourth indicator light 4: When the IO module in the MCU module detects that the switching relay contact K5 is open, the fifth indicator light 5 flashes, indicating that the output of the first bus module interface CAN1 is normal at this time. When the fourth indicator light 4 is constantly lit, it indicates that the first bus module interface CAN1 is not in communication state; when the fourth indicator light 4 is off, it indicates that the first bus module interface CAN1 communication is faulty. Regarding the fifth indicator light 5: When the IO module in the MCU module detects that the switching relay contact K5 is closed, the fourth indicator light 4 flashes, indicating that the output of the second bus module interface CAN2 is normal at this time; when the fifth indicator light 5 is constantly lit, it indicates that the second bus module interface CAN2 is not in communication state; when the fifth indicator light 5 is off, it indicates that the second bus module interface CAN2 communication is faulty.

[0016] On the other hand, the present invention also provides a signal cabinet, comprising: a signal enclosure, a plurality of A-series drive boards and a plurality of B-series drive boards respectively disposed in the signal enclosure, and a plurality of dual-drive to single-drive integrated module boxes as described above.

[0017] Optionally, each of the integrated module boxes is fixedly connected to the rear beam of the signal housing via a fixed bracket.

[0018] Optionally, multiple integrated module boxes can communicate in series through corresponding communication interfaces.

[0019] Optionally, it also includes a network communication extension unit, which is connected in series with multiple integrated module boxes and then connected to the maintenance console. The extension unit monitors the level status of the first normally open contact K1, the second normally open contact K2, the first normally closed contact K3, and the second normally closed contact K4 of each switching relay in real time; obtains the status information of multiple module boxes, and summarizes the status information of multiple module boxes to the network communication extension unit, which then uploads it to the maintenance console.

[0020] In another aspect, the present invention also provides a fully electronic interlocking system, including the signal cabinet as described above.

[0021] Optionally, it also includes a redundant AB network and an MCC control center. The MCC control center drives the corresponding drive boards in the signal cabinet through the redundant AB network. The corresponding drive boards transmit the received signals to each of the integrated module boxes. After conversion processing by the corresponding integrated module boxes, a unique drive signal is output. The drive signal drives the load relay coil to achieve the control objective.

[0022] This invention has at least one of the following advantages: The dual-drive to single-drive integrated module box provided by this invention mainly serves as an electrical interface conversion device when the redundant dual-system VOOB16 drive board drives a single coil relay, ensuring the uniqueness of the output drive signal and ensuring safety and reliability. The dual-drive to single-drive integrated module box provided by this invention allows multiple modules to be used in parallel and centrally, with real-time monitoring of working status, and can cope with large-scale applications. The dual-drive to single-drive integrated module box provided by this invention allows the product to meet the application scenarios of different specifications and standards in overseas markets without changing the original system architecture. It has the characteristics of being compatible with domestic and foreign applications and has strong compatibility.

[0023] The conversion circuit board in the dual-drive to single-drive integrated module box provided by this invention adopts a double-layer circuit board stacking design, is plug-and-play, easy to transport, install and maintain, and has low operating costs. Attached Figure Description

[0024] Figure 1 An electrical schematic diagram of a single dual-drive to single-drive integrated module box provided in an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the working status monitoring principle of multiple integrated module boxes provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the electrical principle of a fully electronic interlocking system provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of a dual-drive to single-drive integrated module box provided in an embodiment of the present invention; Figure 5 for Figure 4 Rear view; Figure 6 This is a schematic diagram of the conversion circuit board in a dual-drive to single-drive integrated module box provided in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the assembly process of a conversion circuit board according to an embodiment of the present invention; Figure 8 This is an exploded view of a dual-drive to single-drive integrated module box provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the main structure of a signal cabinet provided in an embodiment of the present invention. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the dual-drive to single-drive integrated module box, signal cabinet, and fully electronic interlocking system proposed in this invention. The advantages and features of this 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 this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this 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 this 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 this invention, should still fall within the scope of the technical content disclosed in this invention.

[0026] Specifically, in combination Figures 4-8 As shown, this embodiment provides a dual-drive to single-drive integrated module box, which is used to convert the dual-drive board of a fully electronic interlocking system into a single-drive board to drive an external load. The integrated module box 1 includes: a housing 100 and a conversion circuit board 106 disposed inside the housing 100; the input terminals of the conversion circuit board 106 are respectively connected to the two drive boards; the output terminal of the conversion circuit board 106 is connected to the external load; in this embodiment, the external load is a load gravity relay coil. The conversion circuit board 106 is used to control the output drive signal of either of the two drive boards to drive the external load.

[0027] The conversion circuit board 106 is provided with two input interfaces (a first input interface and a second input interface) 105 and one output interface 103; the input interfaces 105 and the output interface 103 are respectively located on both sides of the housing 100. The two driver boards are respectively connected to the external load through the corresponding two input interfaces 105 and output interfaces 103.

[0028] The conversion circuit board 106 is provided with two communication interfaces 101 ( Figure 1 The first bus module interface CAN1 and the second bus module interface CAN2 are used to enable communication between the various integrated module boxes 1 when there are multiple integrated module boxes 1.

[0029] A fixing bracket 104 is disposed on one side of the exterior of the housing 100 and is used to fix the housing 100. In this embodiment, the fixing bracket 104 and the input interface 105 are located on the same side, which facilitates space saving for subsequent connection with the signal cabinet.

[0030] The conversion circuit board 106 includes a main board 1062, a secondary board 1061, and a rigid-flex board 1063. The main board 1062 and the secondary board 1061 are arranged opposite each other with a gap between them, and the sides of the main board 1062 and the secondary board 1061 are connected through the rigid-flex board 1063. Please refer to [link / reference needed] for details. Figure 7 As shown, the main board 1062 and the sub-board 1061 are folded along the rigid-flex board 1063 and then fixed at intervals with bolts 201. There is a predetermined interval between the main board 1062 and the sub-board 1061 to ensure a normal safe distance and heat dissipation requirements between the main board 1062 and the sub-board 1061. After being stacked and installed, the conversion circuit board 106 is then fitted with four long studs 1005. The conversion circuit board 106 is then fixed to the housing 100 (which includes a housing base plate 1001 and a housing top cover 1002) with four fixing screws 1003 using the long studs 1005. Finally, the housing top cover 1002 is fixed to the housing base plate 1001 with six fixing screws 1004.

[0031] Combination Figure 1 and Figure 7 As shown, the motherboard includes an input interface 105 (hereinafter referred to as the first input interface for ease of distinction), a status indicator group 102, a communication interface 101, a switching power supply, an MCU module, and a switching relay; in this embodiment, the switching relay is a safety relay. The switching power supply is electrically connected to the MCU module.

[0032] The sub-board includes: an input interface 105 (hereinafter referred to as the second input interface for easy distinction) and an output interface 103.

[0033] In this embodiment, please continue to refer to Figure 1 As shown, the two drive boards are designated as A-series drive board VOOB16-A and B-series drive board VOOB16-B, specifically the VOOB16 model drive board. The portable compact dual-drive to single-drive integrated module box 1 requires the use of the VOOB16 drive board, which is mainly used to drive the gravity relay coil according to the logic program.

[0034] The A-series driver board VOOB16-A connects to the first input interface on the motherboard 1062 ( Figure 7 The input interface 105 is connected to the gravity relay coil.

[0035] The B-series driver board VOOB16-B uses the second input interface on the sub-board 1061 ( Figure 7 The input interface 105 is connected to the gravity relay coil.

[0036] For details, please continue to refer to [the website / information]. Figure 1 As shown, a separate DC24V power supply (A-channel) powers the A-series driver board VOOB16-A; a separate DC24V power supply (B-channel) powers the B-series driver board VOOB16-B.

[0037] The A-series driver board VOOB16-A has two outputs (including a first output VOOB16-AP and a second output VOOB16-AN). The first output VOOB16-AP and the second output VOOB16-AN of the A-series driver board VOOB16-A are directly connected to the coil ends of the switching relay on the motherboard 1062. Simultaneously, the two outputs of the A-series driver board VOOB16-A are also connected to the coil ends of the load gravity relay (external load) through the first normally open contact K1 and the second normally open contact K2 of the switching relay.

[0038] The first output VOOB16-BP and the second output VOOB16-BN of the B-series driver board are connected to the two ends of the coil of the load gravity relay through the first normally closed contact K3 and the second normally closed contact K4 of the switching relay, respectively.

[0039] The first normally open contact K1, the second normally open contact K2, the first normally closed contact K3, and the second normally closed contact K4 are all linked together when the coil of the switching relay is energized and drawn in or falls. That is, when the first normally open contact K1 and the second normally open contact K2 are normally open, the first normally closed contact K3 and the second normally closed contact K4 must be closed; when the first normally open contact K1 and the second normally open contact K2 are normally closed, the first normally closed contact K3 and the second normally closed contact K4 must be normally open. This forms a decisive mutual exclusion in terms of physical structure.

[0040] When the A-series driver board VOOB16-A is normally outputting the first channel (i.e., outputting drive signals through the first channel output VOOB16-AP and the second channel output VOOB16-AN), after the coil of the switching relay is energized and pulled up, the first normally open contact K1 and the second normally open contact K2 close, while the first normally closed contact K3 and the second normally closed contact K4 open. In this state, the first channel output VOOB16-AP and the second channel output VOOB16-AN of the A-series driver board VOOB16-A output the drive signal to directly control the coil of the load gravity relay.

[0041] At this time, the output of the B-series driver board VOOB16-B (the first output VOOB16-BP and the second output VOOB16-BN) has no effect on the coil of the load gravity relay.

[0042] If the A-series driver board VOOB16-A malfunctions, the A-series driver board VOOB16-A cannot control the coil of the switching relay. At this time, the contacts of the switching relay remain inactive. The first normally open contact K1 and the second normally open contact K2 are normally open, and the first normally closed contact K3 and the second normally closed contact K4 are normally closed.

[0043] When the first normally closed contact K3 and the second normally closed contact K4 are in the normally closed state, the coil of the load gravity relay is driven by the B-series driver board VOOB16-B. Ultimately, only one of the two boards drives the load gravity relay. Therefore, during the entire driving process, both boards (A-series driver board VOOB16-A and B-series driver board VOOB16-B) are in a redundant state.

[0044] The switching power supply on the main board 1062 of the conversion circuit board 106 is connected to an external separate C-channel power supply DC24V, and is used to convert the 24V DC power output from the separate C-channel power supply into 3.3V DC power to power the MCU module.

[0045] The first indicator light 1 and the first resistor R1 are connected to the output terminal of the separate C-channel power supply DC24V via the first resistor R1.

[0046] The second indicator light 2 and the second resistor R2 are connected to the output terminal of the switching power supply through the second resistor R2.

[0047] The MCU module is equipped with an IO module, a first bus module interface CAN1, and a second bus module interface CAN2.

[0048] The IO module is connected to the output terminal of the switching power supply through the contact K5 of the switching relay and the sixth resistor R6; The IO module in the MCU module collects the status of the contact K5 and connects the working status of the first normally open contact K1, the second normally open contact K2, the first normally closed contact K3, and the second normally closed contact K4 of the switching relay in series with other module boxes N through the first bus module interface CAN1 and the second bus module interface CAN2. Finally, the driving status of all VOOB16 driver boards is aggregated to the communication extension through the CAN line.

[0049] For further reference Figure 2 As shown and as Figure 3 As shown. Ultimately, the driver status of all VOOB16 driver boards can be exchanged with the main system network via the communication extension, and uploaded to the maintenance console to display the working status of all board drivers.

[0050] The motherboard 1062 also includes: a third indicator light 3 and a third resistor R3 connected in series; a fourth indicator light 4 and a fourth resistor R4 connected in series; a fifth indicator light 5 and a fifth resistor R5 connected in series; one end of the third indicator light 3 and the third resistor R3 connected in series is connected to the IO module, and the other end is grounded.

[0051] The fourth indicator light 4 and the fourth resistor R4, which are connected in series, are connected at one end to the IO module and at the other end to ground.

[0052] The fifth indicator light 5 and the fifth resistor R5, which are connected in series, are connected at one end to the IO module and at the other end to ground.

[0053] The status indicator group 102 includes a total of 5 indicator lights.

[0054] The first indicator light 1 mentioned above: When the DC24V input power of the switching power supply is normal, the first indicator light 1 mentioned above will be constantly lit; when the first indicator light 1 mentioned above is off, there may be a fault in the DC24V input power of the switching power supply.

[0055] The second indicator light 2 mentioned above: When the output of the switching power supply is normal, the second indicator light 2 mentioned above will be constantly lit; when the second indicator light 2 mentioned above is off, the output of the switching power supply may be faulty.

[0056] The third indicator light 3 mentioned above: When the third indicator light 3 is constantly lit, it means that the MCU module of the module box is working normally. When it is off, it means that the MCU module may be faulty.

[0057] The fourth indicator light 4 mentioned above: When the IO module in the MCU module detects that the switching relay contact K5 is open, the fifth indicator light 5 mentioned above will flash, indicating that the output of the first bus module interface (communication interface) CAN1 is normal at this time; when the fourth indicator light 4 mentioned above is constantly on, it indicates that the first bus module interface CAN1 is not in communication state; when the fourth indicator light 4 mentioned above is off, it indicates that the first bus module interface CAN1 is in communication failure.

[0058] The fifth indicator light 5: When the IO module in the MCU module detects that the switching relay contact K5 is closed, the fourth indicator light 4 will flash, indicating that the second bus module interface CAN2 output is normal at this time; when the fifth indicator light 5 is constantly on, it indicates that the second bus module interface CAN2 is not in communication state; when the fifth indicator light 5 is off, it indicates that the second bus module interface CAN2 communication is faulty.

[0059] like Figure 9 As shown, this embodiment provides a signal cabinet 400, including: a signal enclosure 200, a plurality of A-series drive boards 301 and a plurality of B-series drive boards respectively disposed in the signal enclosure 200, and a plurality of dual-drive to single-drive integrated module boxes 1 as described above.

[0060] Each of the integrated module boxes 1 is fixedly connected to the rear beam 310 of the signal housing 200 via the fixed bracket 104.

[0061] like Figure 2 As shown, the multiple integrated module boxes 1 communicate in series through corresponding communication interfaces 101. In this embodiment, the integrated module boxes include four.

[0062] Specifically, the A-series and B-series driver boards are installed side-by-side in the signal control box 200, which is fixed to the signal cabinet 400 with screws. Communication between the A-series and B-series driver boards is achieved through the backplane 212 mounted on the signal control box 200. When installing the integrated module box 1, ensure that the input interface 105 on the integrated module box 1 is fully connected to the signal output interface 310 of the driver board. The signal output cable 311 is installed on the output interface 103 on the integrated module box 1, and the other end of the signal output cable 311 is connected to the relay coil. The integrated module box 1 supports the simultaneous use of multiple driver boards.

[0063] The signal cabinet 400 also includes a network communication unit 2. The network communication unit 2 and multiple integrated module boxes 1 are connected in series and then connected to the maintenance console 3 to monitor the level status of the four contacts of each switching relay in real time; obtain the status information of multiple sets of module boxes 1, and summarize the status information of multiple sets of module boxes to the network communication unit 2, which then uploads it to the maintenance console 3.

[0064] like Figure 3 As shown, the present invention also provides a fully electronic interlocking system, including the signal cabinet 400 as described above.

[0065] Specifically, it also includes a redundant AB network and an MCC control center 4. The MCC control center 4 drives the corresponding drivers in the signal cabinet 400 through the redundant AB network. The corresponding driver boards transmit the received signals to each integrated module box 1. After conversion processing by the corresponding integrated module box 1, a unique drive signal is output. The drive signal drives the load relay coil 11 to achieve the control target. In this embodiment, the output terminal of each integrated module box 1 is connected to a load relay coil 11. Multiple integrated module boxes 1 can work simultaneously, driving the corresponding load relay coil 11 at the same time.

[0066] The status of the switching relay contacts is transmitted back to the maintenance network via network communication extension 2, and then transmitted to maintenance console 3 via the maintenance network.

[0067] In summary, the module box provided by this invention mainly serves as an electrical interface conversion device when a redundant dual-system VOOB16 driver board drives a single-coil gravity relay. Without compromising system safety, a switching relay (a safety relay) is added between each output of the VOOB16 board and the external gravity relay. The outputs of the corresponding ports of the two redundant VOOB16 boards are connected to two pairs of mutually exclusive normally open and normally closed contacts of the switching relay. The output of the VOOB16-A board controls both the switching relay coil and, through the two normally open contacts of the switching relay, controls the gravity relay coil externally. The output of the VOOB16-A board controls the gravity relay coil externally through the two normally closed contacts of the switching relay. This connection method ensures that only one VOOB16 board drives the gravity relay at a time, thus achieving a safe dual-drive to single-drive function. Furthermore, to ensure system maintainability, the status of the switching relay is monitored in real time by acquiring the status of one normally closed contact of the switching relay. One module box supports up to 16 outputs. The system supports multiple module boxes working simultaneously. All module boxes exchange information with the communication extension unit through redundant CAN communication interfaces, and the information is finally uploaded to the maintenance console by the communication extension unit.

[0068] The integrated module box 1 provided by this invention mainly serves as an electrical interface conversion device when a redundant dual-system VOOB16 driver board drives a single-coil relay. Without compromising system safety, a switching relay is added between each output of the VOOB16 board and the external load relay. The outputs of corresponding ports of the two redundant VOOB16 boards are connected to a pair of mutually exclusive normally open and normally closed contacts of the switching relay. The outputs of the A-system control switch relay coil's normally open and normally closed contacts are combined and connected to the load relay. This connection method ensures that only one VOOB16 board drives the load relay at a time, achieving a safe dual-drive to single-drive function. Simultaneously, to ensure system maintainability, the level status of the four sets of contacts of each switching relay is monitored in real time. The module box supports multiple sets operating simultaneously. Information exchange between the module boxes is achieved via redundant dual CAN lines. The status information of multiple module boxes can be directly summarized to a communication extension, which then uploads it to the maintenance console.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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 dual-drive to single-drive integrated module box, used to convert a dual-drive board of a fully electronic interlocking system into a single-drive board to drive an external load, characterized in that, The integrated module box includes: case, A conversion circuit board is disposed inside the housing; The input terminals of the conversion circuit board are respectively connected to the two driver boards; The output terminal of the conversion circuit board is connected to the external load; The conversion circuit board is used to control the output drive signal of either of the two drive boards to drive the external load; The conversion circuit board is provided with an input interface and an output interface; the input interface and the output interface are respectively located on both sides of the housing. The two driver boards are respectively connected to the conversion circuit board through the input interface. The output interface is connected to the external load; The conversion circuit board is provided with a communication interface for enabling communication between the integrated module boxes when there are multiple integrated module boxes. A fixing bracket is disposed on one side of the exterior of the housing and is used to fix the housing. The conversion circuit board includes a main board, a sub-board, and a rigid-flex board. The main board and the sub-board are arranged opposite each other at a distance, and the sides of the main board and the sub-board are connected through the rigid-flex board. When there are two input interfaces, they are referred to as the first input interface and the second input interface; the motherboard is provided with the first input interface, the communication interface, and the switching relay; The sub-board is provided with the second input interface and the output interface; The two driver boards are respectively connected to the first input interface and the second input interface. The switching relay is used to control either of the two driver boards to output the drive signal to the external load through the output interface to drive the external load. The external load is the coil of a gravity relay. The two driver boards are designated as A-series driver board VOOB16-A and B-series driver board VOOB16-B. The A-series driver board VOOB16-A includes two outputs, referred to as the first output VOOB16-AP and the second output VOOB16-AN. The first output VOOB16-AP and the second output VOOB16-AN of the A-series driver board VOOB16-A are directly connected to the two ends of the coil of the switching relay; The two outputs of the A-series driver board VOOB16-A are also connected to the two ends of the coil of the load gravity relay through the first normally open contact K1 and the second normally open contact K2 of the switching relay, respectively. The first output VOOB16-BP and the second output VOOB16-BN of the B-series driver board VOOB16-B are connected to the two ends of the coil of the load gravity relay through the first normally closed contact K3 and the second normally closed contact K4 of the switching relay, respectively. After the coil of the switching relay is energized and pulled up, the first normally open contact K1 and the second normally open contact K2 close, while the first normally closed contact K3 and the second normally closed contact K4 open. In this state, the first output VOOB16-AP and the second output VOOB16-AN of the A-series driver board VOOB16-A output the driving signal to directly control the coil of the load gravity relay. At this time, the output of the B-series drive board VOOB16-B has no effect on the coil of the load gravity relay; If the A-series driver board VOOB16-A malfunctions, the A-series driver board VOOB16-A cannot control the coil of the switching relay. At this time, the contacts of the switching relay remain inactive. The first normally open contact K1 and the second normally open contact K2 are normally open, and the first normally closed contact K3 and the second normally closed contact K4 are normally closed. When the first normally closed contact K3 and the second normally closed contact K4 are in the normally closed state, the coil of the load gravity relay is driven by the B-series drive board VOOB16-B.

2. The dual-drive to single-drive integrated module box as described in claim 1, characterized in that, The motherboard also includes: a switching power supply and an MCU module connected to each other; the switching power supply is connected to an externally provided separate C-channel DC24V power supply, used to convert the 24V DC power output from the separate C-channel DC24V power supply into 3.3V DC power to power the MCU module; The MCU module is equipped with an IO module, a first bus module interface CAN1, and a second bus module interface CAN2. The IO module is connected to the output terminal of the switching power supply through the contact K5 of the switching relay and the sixth resistor R6; The IO module in the MCU module collects the status of the contact K5 and connects the working status of the first normally open contact K1, the second normally open contact K2, the first normally closed contact K3, and the second normally closed contact K4 of the switching relay in series with other module boxes through the first bus module interface CAN1 and the second bus module interface CAN2. The driving status of all driving boards is aggregated to the communication extension of the all-electronic interlocking system through the CAN line.

3. The dual-drive to single-drive integrated module box as described in claim 2, characterized in that, The motherboard also includes a status indicator group, which includes a first indicator light 1 and a first resistor R1 connected in series. The first indicator light 1 is connected to the output terminal of the separate C-channel power supply DC24V through the first resistor R1. A second indicator light 2 and a second resistor R2 are connected in series, and the second indicator light 2 is connected to the output terminal of the switching power supply through the second resistor R2; The third indicator light 3 and the third resistor R3 are connected in series; one end of the series-connected third indicator light 3 and the third resistor R3 is connected to the IO module, and the other end is grounded; The fourth indicator light 4 and the fourth resistor R4 are connected in series; one end of the series-connected fourth indicator light 4 and fourth resistor R4 is connected to the IO module, and the other end is grounded. The fifth indicator light 5 and the fifth resistor R5 are connected in series; one end of the series-connected fifth indicator light 5 and the fifth resistor R5 is connected to the IO module, and the other end is grounded; Regarding the first indicator light 1: When the DC24V input power of the individual C-channel power supply of the switching power supply is normal, the first indicator light 1 will be constantly lit; when the first indicator light 1 is off, there may be a fault in the DC24V input power of the switching power supply. Regarding the second indicator light 2: When the output of the switching power supply is normal, the second indicator light 2 will be constantly lit; when the second indicator light 2 is off, it indicates that there may be a fault in the output of the switching power supply. Regarding the third indicator light 3: If the third indicator light 3 is constantly lit, it indicates that the MCU module of the corresponding module box is working normally; if the third indicator light 3 is off, it indicates that the MCU module may be faulty. Regarding the fourth indicator light 4: When the IO module in the MCU module detects that the switching relay contact K5 is open, the fifth indicator light 5 flashes, indicating that the output of the first bus module interface CAN1 is normal at this time; When the fourth indicator light 4 is constantly on, it indicates that the first bus module interface CAN1 is not in communication mode; when the fourth indicator light 4 is off, it indicates that the first bus module interface CAN1 is in communication failure mode. Regarding the fifth indicator light 5: When the IO module in the MCU module detects that the switching relay contact K5 is closed, the fourth indicator light 4 flashes, indicating that the second bus module interface CAN2 is outputting normally; when the fifth indicator light 5 is constantly on, it indicates that the second bus module interface CAN2 is not in communication mode; when the fifth indicator light 5 is off, it indicates that the second bus module interface CAN2 is experiencing a communication failure.

4. A signal cabinet, characterized in that, It includes: a signal enclosure, a plurality of A-series drive boards and a plurality of B-series drive boards respectively disposed in the signal enclosure, and a plurality of dual-drive to single-drive integrated module boxes as described in any one of claims 1 to 3.

5. The signal cabinet as described in claim 4, characterized in that, Each of the integrated module boxes is fixedly connected to the rear beam of the signal box via a fixed bracket.

6. The signal cabinet as described in claim 5, characterized in that, Multiple integrated module boxes communicate in series through corresponding communication interfaces.

7. The signal cabinet as described in claim 6, characterized in that, It also includes a network communication extension unit, which is connected in series with multiple integrated module boxes and then connected to the maintenance console to monitor the level status of the first normally open contact K1, the second normally open contact K2, the first normally closed contact K3 and the second normally closed contact K4 of each switching relay in real time. The status information of multiple module boxes is obtained, and the status information of multiple module boxes is summarized to the network communication extension, which then uploads it to the maintenance console.

8. A fully electronic interlocking system, characterized in that, Includes the signal cabinet as described in any one of claims 4 to 7.

9. The fully electronic interlocking system as described in claim 8, characterized in that, It also includes a redundant AB network and an MCC control center. The MCC control center drives the corresponding drive boards in the signal cabinet through the redundant AB network. The corresponding drive boards transmit the received signals to each integrated module box. After conversion processing by the corresponding integrated module box, a unique drive signal is output. The drive signal drives the load relay coil to achieve the control objective.

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