一种用于重载铁路的自诊断集中式25周相敏轨道电路

Abstract

本实用新型公开了一种用于重载铁路的自诊断集中式25周相敏轨道电路，包括室内发送单元、室内接收单元、室外扼流变压器和轨道电路接收器，还包括自诊断设备，自诊断设备包括室内监测单元、室外监测分机和室内监控机，室内监测单元包括第一室内监测单元和第二室内监测单元，以及通信管理机，通信管理机连接室内监控机；室外监测分机包括第一室外监测分机和第二室外监测分机，室外监测分机与载波通信主机连接。本实用新型对室内设备的电压及电流、室外设备的电流的实时采集，且通过载波通信主机实现室外数据的集成传输，通过通信管理机实现室内数据的集成传输，系统集成度高，也便于维护，便于后续电路故障判断及预警。

Claims

1. A self-diagnostic centralized 25-phase sensitive track circuit for heavy haul railways, the centralized 25-phase sensitive track circuit comprising an indoor transmitting unit (700), an indoor receiving unit (800), an outdoor choke transformer (900) and a track circuit receiver (600), characterized in that: It also includes a self-diagnostic device, which includes an indoor monitoring unit, an outdoor monitoring unit and an indoor monitoring unit (500). The indoor monitoring unit includes a first indoor monitoring unit (100) connected to an indoor transmitting unit (700) and a second indoor monitoring unit (110) connected to an indoor receiving unit (800), and a communication management unit (400) connected to both the first indoor monitoring unit (100) and the second indoor monitoring unit (110). The communication management unit (400) is connected to the indoor monitoring unit (500). The outdoor monitoring unit includes a first outdoor monitoring unit (200) connected to a first outdoor choke transformer (900) and a second outdoor monitoring unit (210) connected to a second outdoor choke transformer (900). Both the first outdoor monitoring unit (200) and the second outdoor monitoring unit (210) are connected to a carrier communication host (300), which is connected to a communication management unit (400).

2. A self-diagnosing centralized 25-phase sensitive track circuit for heavy haul railways according to claim 1, characterized in that: The first indoor monitoring unit (100) and the second indoor monitoring unit (110) have the same structure and both include a first voltage sensor (101), a second voltage sensor (102), a first current sensor (103), and a second current sensor (104). The output terminals of the first voltage sensor (101) and the second voltage sensor (102) are respectively connected to an indoor voltage conditioning circuit (105). The output terminals of the first current sensor (103) and the second current sensor (104) are respectively connected to an indoor current conditioning circuit (106). The output terminals of the indoor voltage conditioning circuit (105) and the indoor current conditioning circuit (106) are connected to an indoor control module (107). The indoor control module (107) is connected to a CAN transceiver (108). The CAN transceiver (108) is connected to a communication management unit (400).

3. A self-diagnosing centralized 25 phase-sensitive track circuit for heavy haul railways according to claim 2, characterized in that: The first voltage sensor (101) in the first indoor monitoring unit (100) is connected to the output terminal of the indoor transmitting unit (700), the second voltage sensor (102) in the first indoor monitoring unit (100) is connected to the input terminal of the indoor transmitting unit (700), the first current sensor (103) in the first indoor monitoring unit (100) is connected to the output terminal of the indoor transmitting unit (700), and the second current sensor (104) in the first indoor monitoring unit (100) is connected to the input terminal of the indoor transmitting unit (700). The first voltage sensor (101) in the second indoor monitoring unit (110) is connected to the output terminal of the indoor transmitting unit (700), the second voltage sensor (102) in the second indoor monitoring unit (110) is connected to the input terminal of the indoor transmitting unit (700), the first current sensor (103) in the second indoor monitoring unit (110) is connected to the output terminal of the indoor transmitting unit (700), and the second current sensor (104) in the second indoor monitoring unit (110) is connected to the input terminal of the indoor transmitting unit (700).

4. A self-diagnosing centralized 25 phase-sensitive track circuit for heavy haul railways according to claim 2, characterized in that: The indoor voltage conditioning circuit (105) includes an operational amplifier INA333AIDGKR and a single-pole double-throw analog switch BL1551B. The output terminals of the first voltage sensor (101) and the second voltage sensor (102) are both connected to the operational amplifier INA333AIDGKR. The indoor current conditioning circuit (106) includes an operational amplifier TLV9062IPWR, and the output terminals of the first current sensor (103) and the second current sensor (104) are both connected to the operational amplifier TLV9062IPWR.

5. A self-diagnosing centralized 25 phase-sensitive track circuit for heavy haul railways according to claim 1, characterized in that: The first outdoor monitoring unit (200) and the second outdoor monitoring unit (210) have the same structure and both include a first outdoor current sensor (201) connected to the signal side of the outdoor choke transformer (900) and a second outdoor current sensor (202) and a third outdoor current sensor (203) connected to the traction side of the outdoor choke transformer (900). The output terminals of the first outdoor current sensor (201), the second outdoor current sensor (202) and the third outdoor current sensor (203) are connected to the outdoor current conditioning circuit (204), and the outdoor current conditioning circuit (204) is connected to the outdoor main control module (205).

6. A self-diagnosing centralized 25 phase-sensitive track circuit for heavy haul railways according to claim 5, characterized in that: The outdoor main control module (205) is connected to the first power line communication module (206), and the carrier communication host (300) is connected to the second power line communication module (301). The first power line communication module (206) and the second power line communication module (301) communicate via power line carrier. The carrier communication host (300) and the indoor monitoring unit (500) are connected via a network cable.

7. A self-diagnosing centralized 25 phase-sensitive track circuit for heavy haul railways according to claim 1, characterized in that: The outdoor choke transformer (900) is a BET1-1600 / 25 outdoor choke transformer; the rated capacity of the outdoor choke transformer (900) is 1600A.

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