Hot standby redundant LEU system and equipment

Abstract

The invention belongs to the technical field of railway signals, and provides a hot standby redundant LEU system and equipment, and the system comprises a first LEU subsystem, a second LEU subsystem and a switching module. The first LEU subsystem comprises a first circuit module and a first power supply communication module which are electrically connected, and the first power supply communication module receives a power supply signal and a first input signal through a first input cable; the second LEU subsystem comprises a second circuit module and a second power supply communication module which are electrically connected, and the second power supply communication module receives a power supply signal and a second input signal through a second input cable; the first circuit module sends a first output signal to the switching module, the second circuit module sends a second output signal to the switching module, and the switching module sends the first output signal or the second output signal to the active transponder through the output cable. According to the hot standby redundant LEU system, the integration level of the LEU system and equipment is improved, the cable cost is reduced, and the size of the LEU equipment is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway signaling, and in particular, relates to a hot standby redundant LEU system and equipment. Background Art

[0002] LEU (Lineside Electronic Unit) is an important ground equipment during the movement of trains. The train control center sends message information to the active balise through LEU, and passing trains read real-time information through the active balise.

[0003] The LEU in the prior art usually adopts the hardware design architecture of "board + cage + cabinet". The functional boards generally include the main control board, monitoring board, output board, and switch board. Various functional boards exchange information through the backplane. The functional board and the backplane must first be installed in the cage, and then the cage is installed in the cabinet. This solution has a low degree of integration, a large device size, and complex installation. In addition, the LEU power supply cable and the communication cable in the prior art are independent of each other, and the cable laying cost is high. Summary of the invention

[0004] To solve the above problems, the present disclosure provides a hot standby redundant LEU system and equipment, including two LEU subsystems, each subsystem including a circuit module and a power supply communication module; the units in the circuit module are integrated on the same printed circuit board, and the power supply communication module receives power supply signals and input signals through input cables; the volume occupied by the LEU system and equipment is reduced, and the number of cables is reduced.

[0005] The present invention is achieved through the following technical solutions: In a first aspect, an embodiment of the present disclosure provides a hot standby redundant LEU system, the system comprising: a first LEU subsystem, a second LEU subsystem and a switching module; The first LEU subsystem includes a first circuit module and a first power supply communication module, the first power supply communication module receives a power supply signal and a first input signal through a first input cable; the first power supply communication module supplies power to the first circuit module and sends the first input signal; The second LEU subsystem includes a second circuit module and a second power supply communication module, the second power supply communication module receives a power supply signal and a second input signal through a second input cable; the second power supply communication module supplies power to the second circuit module and sends a second input signal; wherein, The first power supply communication module is electrically connected to the second circuit module, and the first power supply communication module sends a first input signal to the second circuit module; the second power supply communication module is electrically connected to the first circuit module, and the second power supply communication module sends a second input signal to the first circuit module; The first circuit module sends a first output signal to the switching module, the second circuit module sends a second output signal to the switching module, and the switching module sends the first output signal or the second output signal to the active transponder through the output cable.

[0006] Furthermore, The first circuit module includes a first monitoring unit, a first main control unit and a first output unit, and the first main control unit and the first output unit are electrically connected; The first monitoring unit generates a first status signal, and sends the first status signal to the switching module; the first main control unit receives the first input signal, generates a first message information, and the first main control unit sends the first message information to the first output unit; the first output unit generates a first output signal according to the first message information, and sends the first output signal to the switching module.

[0007] Furthermore, The second circuit module includes a second monitoring unit, a second main control unit and a second output unit, and the second main control unit and the second output unit are electrically connected; The second monitoring unit generates a second status signal, and sends the second status signal to the switching module; the second main control unit receives the second input signal, generates second message information, and the second main control unit sends the second message information to the second output unit; the second output unit generates a second output signal according to the second message information, and sends the second output signal to the switching module.

[0008] Furthermore, The first power supply communication module supplies power to the first circuit module through the power supply line and sends a first input signal to the first circuit module through the communication line; the second power supply communication module supplies power to the second circuit module through the power supply line and sends a second input signal to the second circuit module through the communication line.

[0009] Furthermore, The first power supply communication module is electrically connected to the external device through the first input cable, and uses the power carrier technology to enable the external device to simultaneously send a power supply signal and a first input signal to the first power supply communication module through the first input cable; The second power supply communication module is electrically connected to the external device through the second input cable, and uses the power carrier technology to enable the external device to simultaneously send a power supply signal and a second input signal to the second power supply communication module through the second input cable.

[0010] Furthermore, The first power supply communication module sends a first input signal to the first main control unit in the first circuit module and the second main control unit in the second circuit module; the second power supply communication module sends a second input signal to the second main control unit in the second circuit module and the first main control unit in the first circuit module.

[0011] Furthermore, The switching module receives a first state signal and a first output signal sent by the first LEU subsystem and a second state signal and a second output signal sent by the second LEU subsystem; The switching module determines the working status of the first LEU subsystem and the second LEU subsystem according to the first status signal and the second status signal, and sends one of the first output signal and the second output signal to the active transponder according to the working status.

[0012] Furthermore, The first monitoring unit, the first main control unit and the first output unit in the first circuit module are integrated on the same printed circuit board; the second monitoring unit, the second main control unit and the second output unit in the second circuit module are integrated on the same printed circuit board.

[0013] In a second aspect, based on the same inventive concept, an embodiment of the present disclosure further provides a hot standby redundant LEU device, the device comprising a hot standby redundant LEU system and a cabinet; The hot standby redundant LEU system includes a first LEU subsystem, a second LEU subsystem and a switching module; the box includes a first internal space and a second internal space arranged relatively, the first LEU subsystem is located in the first internal space, and the second LEU subsystem and the switching module are located in the second internal space.

[0014] Furthermore, The box body is a parallelepiped, the length of the box body is less than or equal to 150 mm, the width of the box body is less than or equal to 300 mm, and the height of the box body is less than or equal to 400 mm.

[0015] Compared with the prior art, the present invention has the following advantages: 1. Use power carrier technology to enable external devices to simultaneously power and communicate with the LEU system through one cable, thereby reducing the number of cables and reducing the cost of equipment.

[0016] 2. Integrate the monitoring unit, main control unit and output unit on the same printed circuit board to achieve high integration of the LEU system.

[0017] 3. Integrate the highly integrated LEU system into a small LEU box to achieve miniaturization of LEU equipment.

[0018] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. The purpose and other advantages of the present disclosure can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A block diagram of a hot standby redundant LEU system provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of a hot standby redundant LEU device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] First, Figure 1 A hot standby redundant LEU system block diagram provided in an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, an embodiment of the present disclosure provides a hot standby redundant LEU system, the LEU system comprising: a first LEU subsystem 1 , a second LEU subsystem 2 and a switching module 3 .

[0023] The first LEU subsystem 1 includes a first circuit module 12 and a first power supply communication module 11. The first power supply communication module 11 is electrically connected to an external device via a first input cable 41 to receive a power supply signal and a first input signal. The first circuit module 12 is electrically connected to the first power supply communication module 11. The first power supply communication module 11 supplies power to the first circuit module 12 and sends a first input signal. The second LEU subsystem 2 includes a second circuit module 22 and a second power supply communication module 21. The second power supply communication module 21 is electrically connected to an external device via a second input cable 42 to receive a power supply signal and a second input signal. The second circuit module 22 is electrically connected to the second power supply communication module 21. The second power supply communication module 21 supplies power to the second circuit module 22 and sends a second input signal. Among them, the first power supply communication module 11 is electrically connected to the second circuit module 22, and the first power supply communication module 11 sends a first input signal to the second circuit module 22; the second power supply communication module 21 is electrically connected to the first circuit module 12, and the second power supply communication module 21 sends a second input signal to the first circuit module 12; the first circuit module 12 is electrically connected to the switching module 3, and the first circuit module 12 sends a first output signal to the switching module 3, the second circuit module 22 is electrically connected to the switching module 3, and the second circuit module 22 sends a second output signal to the switching module 3, and the switching module 3 sends the first output signal or the second output signal to the active transponder through the output cable 5.

[0024] In the embodiment of the present disclosure, the first circuit module 12 includes a first monitoring unit 121, a first main control unit 122 and a first output unit 123, and the first main control unit 122 and the first output unit 123 are electrically connected. The first monitoring unit 121 generates a first state signal and sends the first state signal to the switching module 3; the first main control unit 122 receives the first input signal and generates a first message information, and the first main control unit 122 sends the first message information to the first output unit 123; the first output unit 123 generates a first output signal according to the first message information, and sends the first output signal to the switching module 3. The first monitoring unit 121 is used to monitor and record key information data during the operation of the first LEU subsystem 1, generate a first state signal, and the first state signal is used for the switching module 3 to judge the working state of the first LEU subsystem 1; the first main control unit 122 is used to receive the first input signal, combine the recorded key information data and system data for processing, and perform logical operations to generate the first message information; the first output unit 123 is used to generate a first output signal according to the first message information, and send the first output signal to the switching module 3. The first monitoring unit 121 , the first main control unit 122 and the first output unit 123 are integrated on the same printed circuit board to form a first circuit module 12 . The printed circuit board includes a PCB, an FPCB, etc., which will not be further limited herein.

[0025] Further, the second circuit module 22 includes a second monitoring unit 221, a second main control unit 222 and a second output unit 223, and the second main control unit 222 and the second output unit 223 are electrically connected. The second monitoring unit 221 generates a second state signal and sends the second state signal to the switching module 3; the second main control unit 222 receives the second input signal and generates a second message information, and the second main control unit 222 sends the second message information to the second output unit 223; the second output unit 223 generates a second output signal according to the second message information, and sends the second output signal to the switching module 3. The second monitoring unit 221 is used to monitor and record the key information data during the operation of the second LEU subsystem 2, generate a second state signal, and the second state signal is used for the switching module 3 to determine the working state of the second LEU subsystem 2; the second main control unit 222 is used to receive the second input signal, combine the recorded key information data and system data for processing, and perform logical operations to generate second message information; the second output unit 223 is used to generate a second output signal according to the second message information, and send the second output signal to the switching module 3. The second monitoring unit 221 , the second main control unit 222 and the second output unit 223 are integrated on the same printed circuit board to form a second circuit module 22 . The printed circuit board includes a PCB, an FPCB, etc., which will not be further limited here.

[0026] In the embodiment of the present disclosure, the first power supply communication module 11 is electrically connected to the external device through the first input cable 41, and the power carrier technology is used to enable the external device to simultaneously send a power supply signal and a first input signal to the first power supply communication module 11 through the first input cable 41. The external device includes a power supply module and a train control center module, and the power carrier technology can be used to realize power supply and communication of the first power supply communication module 11, thereby reducing the use of cables and reducing construction costs. The first power supply communication module 11 processes the received first input signal, supplies power to the first circuit module 12 through the power supply line 61, and then sends the first input signal to the first circuit module 12 through the communication line 62. Further, the first input signal is sent to the first main control unit 122.

[0027] Furthermore, the second power supply communication module 21 is electrically connected to the external device through the second input cable 42, and the power carrier technology is used to enable the external device to simultaneously send the power supply signal and the second input signal to the second power supply communication module 21 through the second input cable 42. The external device includes a power supply module and a train control center module, and the power carrier technology can be used to realize the power supply and communication of the second power supply communication module 21, thereby reducing the use of cables and reducing construction costs. The second power supply communication module 21 processes the received second input signal, supplies power to the second circuit module 22 through the power supply line 61, and then sends the second input signal to the second circuit module 22 through the communication line 62. Further, the second input signal is sent to the second main control unit 222.

[0028] In the disclosed embodiment, the first power supply communication module 11 also sends a first input signal to the second circuit module 22, specifically, the first input signal is sent to the second main control unit 222; the second power supply communication module 21 also sends a second input signal to the first circuit module 12, specifically, the second input signal is sent to the first main control unit 122. The first LEU subsystem 1 and the second LEU subsystem 2 adopt a hot standby redundant design. Taking the first LEU subsystem 1 as the main system and the second LEU subsystem 2 as the standby system as an example, the first LEU subsystem 1 mainly performs actual data processing work and undertakes the main system tasks. The second LEU subsystem 2 maintains the same working state as the first LEU subsystem 1, as a real-time backup of the first LEU subsystem 1. When the first LEU subsystem 1 fails, the second LEU subsystem 2 takes over the work of the first LEU subsystem 1 to ensure the continuous operation of the LEU system. Therefore, the first power supply communication module 11 also sends a first input signal to the second circuit module 22; the second power supply communication module 21 also sends a second input signal to the first circuit module 12; so as to facilitate information synchronization and backup between the first LEU subsystem 1 and the second LEU subsystem 2.

[0029] In the disclosed embodiment, the switching module 3 receives in real time the first state signal, the first output signal of the first LEU subsystem 1, and the second state signal and the second output signal of the second LEU subsystem 2. The switching module 3 determines the working state of the first LEU subsystem 1 and the second LEU subsystem 2 according to the first state signal and the second state signal, and sends the first output signal or the second output signal to the active transponder according to the working state, wherein the first output signal includes the first message information, and the second output signal includes the second message information.

[0030] Second, Figure 2 A schematic diagram of a hot standby redundant LEU device provided in an embodiment of the present disclosure is shown in FIG. Figure 2As shown, based on the same inventive concept, the embodiment of the present disclosure also provides a hot standby redundant LEU device, the device comprising: a hot standby redundant LEU system and a box 10. The hot standby redundant LEU system comprises a first LEU subsystem, a second LEU subsystem and a switching module; the box 10 comprises a first internal space and a second internal space arranged oppositely, the first LEU subsystem is located in the first internal space, and the second LEU subsystem and the switching module are located in the second internal space.

[0031] Continue to refer Figure 2 In order to reduce the occupied space of the hot standby redundant LEU equipment and realize the miniaturization of the equipment, a parallelepiped box 10 is selected, the length of the box 10 is less than or equal to 150mm, the width of the box 10 is less than or equal to 300mm, and the height of the box 10 is less than or equal to 400mm. The box 10 of the existing LEU equipment usually adopts a 4U cage design, the length of a single box 10 is approximately equal to 177.8mm, the width of the box 10 is 320mm, and the height of the box 10 is 482.6mm. The hot standby redundant LEU system provided in the present disclosure can be placed in a smaller box 10, reducing the occupied space of the hot standby redundant LEU equipment.

[0032] Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A hot standby redundant LEU system, characterized in that: The system comprises: a first LEU subsystem, a second LEU subsystem and a switching module; The first LEU subsystem includes a first circuit module and a first power supply communication module, wherein the first power supply communication module receives a power supply signal and a first input signal through a first input cable; the first power supply communication module supplies power to the first circuit module and sends the first input signal; The second LEU subsystem includes a second circuit module and a second power supply communication module, the second power supply communication module receives a power supply signal and a second input signal through a second input cable; the second power supply communication module supplies power to the second circuit module and sends the second input signal; wherein, The first power supply communication module is electrically connected to the second circuit module, and the first power supply communication module sends a first input signal to the second circuit module; the second power supply communication module is electrically connected to the first circuit module, and the second power supply communication module sends a second input signal to the first circuit module; The first circuit module sends a first output signal to the switching module, the second circuit module sends a second output signal to the switching module, and the switching module sends the first output signal or the second output signal to the active transponder through an output cable.

2. The system according to claim 1, characterized in that The first circuit module includes a first monitoring unit, a first main control unit and a first output unit, and the first main control unit and the first output unit are electrically connected; The first monitoring unit generates a first state signal, and sends the first state signal to the switching module; The first main control unit receives the first input signal and generates first message information, and the first main control unit sends the first message information to the first output unit; the first output unit generates the first output signal according to the first message information, and sends the first output signal to the switching module.

3. The system according to claim 1, characterized in that The second circuit module includes a second monitoring unit, a second main control unit and a second output unit, and the second main control unit and the second output unit are electrically connected; The second monitoring unit generates a second state signal, and sends the second state signal to the switching module; The second main control unit receives the second input signal and generates second message information, and the second main control unit sends the second message information to the second output unit; the second output unit generates the second output signal according to the second message information, and sends the second output signal to the switching module.

4. The system according to claim 1, characterized in that The first power supply communication module supplies power to the first circuit module through the power supply line, and sends the first input signal to the first circuit module through the communication line; the second power supply communication module supplies power to the second circuit module through the power supply line, and sends the second input signal to the second circuit module through the communication line.

5. The system according to claim 1, characterized in that The first power supply communication module is electrically connected to an external device through the first input cable, and uses power carrier technology to enable the external device to simultaneously send a power supply signal and the first input signal to the first power supply communication module through the first input cable; The second power supply communication module is electrically connected to an external device through the second input cable, and uses power carrier technology to enable the external device to simultaneously send a power supply signal and the second input signal to the second power supply communication module through the second input cable.

6. The system according to any one of claims 1 to 5, characterized in that: The first power supply communication module sends a first input signal to the first main control unit in the first circuit module and the second main control unit in the second circuit module; the second power supply communication module sends a second input signal to the second main control unit in the second circuit module and the first main control unit in the first circuit module.

7. The system according to claim 1, characterized in that The switching module receives a first state signal and a first output signal sent by the first LEU subsystem and a second state signal and a second output signal sent by the second LEU subsystem; The switching module determines the working status of the first LEU subsystem and the second LEU subsystem according to the first status signal and the second status signal, and sends one of the first output signal and the second output signal to the active transponder according to the working status.

8. The system according to claim 1, characterized in that The first monitoring unit, the first main control unit and the first output unit in the first circuit module are integrated on the same printed circuit board; the second monitoring unit, the second main control unit and the second output unit in the second circuit module are integrated on the same printed circuit board.

9. A hot standby redundant LEU device, characterized in that: The equipment includes a hot standby redundant LEU system and a cabinet; The hot standby redundant LEU system includes a first LEU subsystem, a second LEU subsystem and a switching module; the box includes a first internal space and a second internal space arranged opposite to each other, the first LEU subsystem is located in the first internal space, and the second LEU subsystem and the switching module are located in the second internal space.

10. The device according to claim 9, characterized in that The box body is a parallelepiped, the length of the box body is less than or equal to 150 mm, the width of the box body is less than or equal to 300 mm, and the height of the box body is less than or equal to 400 mm.

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