WO2019091069A1

WO2019091069A1 - Track circuit fault diagnosis system and diagnosis method

Info

Publication number: WO2019091069A1
Application number: PCT/CN2018/086111
Authority: WO
Inventors: 徐宗奇; 杨轶轩; 李智宇; 殷惠媛; 王智新; 周子健; 张璐; 杨晓锋; 谢文磊; 徐晓兰; 袁红颖; 马斌; 阳晋; 白英杰
Original assignee: 北京全路通信信号研究设计院集团有限公司
Priority date: 2017-11-13
Filing date: 2018-05-09
Publication date: 2019-05-16
Also published as: CN108072806A; CN108072806B

Abstract

A track circuit fault diagnosis system comprises a host computer (1), a track circuit monitoring and maintenance terminal (2), an intelligent diagnosis host (3), a communication interface board (4), and a branching collector (5). Communication between the host computer (1) and the track circuit monitoring and maintenance terminal (2) is facilitated via an Ethernet port. Data is transmitted between the track circuit monitoring and maintenance terminal (2) and the intelligent diagnosis host (3) via an Ethernet port. The communication interface board (4) and the branching collector (5) are connected to the track circuit monitoring and maintenance terminal (2) and the intelligent diagnosis host (3) respectively via a CAN bus. A track circuit fault diagnosis method is also provided.

Description

Track circuit fault diagnosis system and diagnosis method

The present application claims the priority of the Chinese Patent Application No. 201711115110.2 filed on Nov. 13, 2017, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure belongs to the technical field of equipment fault diagnosis, and particularly relates to a ZPW-2000A track circuit fault diagnosis system and a diagnosis method.

Background technique

The track circuit is a circuit system that uses the rails of the railway line as a conductor to transmit information and realize the section idleness and occupancy check. It is the basic component of the train operation automatic control and remote control system. Whether the track circuit equipment can work normally is directly related to transportation. Safety and efficiency.

ZPW-2000A track circuit is equipped with more than 60,000 kilometers on China's general speed and high-speed railways, accounting for more than 98% of the total application of China's general speed line and high-speed railway track circuits. The ZPW-2000A track circuit system has a long extension and equipment all over the indoor and outdoor. In the event of a fault, the factors are complex, such as line faults, cable faults, indoor and outdoor equipment failures, and so on. On-site maintenance personnel are often difficult to locate faults based on experience, and the troubleshooting time is long, which seriously affects railway transportation efficiency. The existing monitoring and maintenance products only have the alarm function of monitoring records and threshold setting. It also needs secondary analysis and judgment by the experience of technicians, and does not have the analysis and diagnosis function.

Summary of the invention

In order to solve the above problems existing in the prior art, the present disclosure provides a track circuit fault diagnosis system and a diagnosis method.

In order to achieve the above object, the present disclosure adopts the following technical solution: a track circuit fault diagnosis system, which includes a host computer, a track circuit monitoring and maintenance terminal, an intelligent diagnosis host, a communication interface board, and a line grabber, and the host computer Communicate with the track circuit monitoring and maintenance terminal through an Ethernet port, and the track circuit monitors the data transmission between the maintenance terminal and the intelligent diagnosis host through the Ethernet port; the communication interface board and the branch line collector both pass the CAN bus Separating with the track circuit monitoring maintenance terminal and the intelligent diagnosis host respectively; the communication interface board is configured to collect the power output voltage and the work current of the transmitter, and upload the main rail output voltage and the small track output voltage of the receiver; The branch line collector is used for collecting the cable side voltage of the transmitting end indoor and outdoor interface, the voltage of the receiving end cable side, the voltage of the transmitting end device side and the voltage of the receiving end device side, and the current information of the cable side of the transmitting end.

Further, the intelligent diagnosis host is provided with a direction switching circuit area fault location module, an analog network fault location module, a cable channel fault location module, a tuning area fault location module, and a main rail line fault location module; the direction switching circuit area The fault locating module is configured to detect whether there is a fault in the indoor switching direction switching circuit area and the indoor receiving end direction switching circuit area, and locate the fault location; the analog network fault locating module is configured to detect the transmitting end analog network and the receiving end simulation Whether the network has a fault and locates the fault location; the cable channel fault locating module is configured to detect whether there is a fault in the cable channel of the outdoor transmitting end and the cable channel of the outdoor receiving end, and locate the fault location; The module is configured to detect whether there is a fault in the outdoor transmitting end tuning area and the outdoor receiving end tuning area, and locate the fault location; the main rail line fault locating module is configured to detect whether the main rail line is faulty, and perform fault location Positioning.

Further, the track circuit fault diagnosis system is further provided with an outdoor current detecting device, and the outdoor current detecting device is respectively connected to the track circuit monitoring and maintenance terminal and the intelligent diagnosis host through the CAN bus.

Further, the outdoor current detecting device collects and uploads the rail lead current and the cable side current of the outdoor tuning matching unit through the PLC bus.

Further, the intelligent diagnostic host is further provided with a rail lead wire fault locating module, wherein the rail lead wire fault locating module is configured to detect whether there is a fault in the transmitting end tuning matching unit rail lead wiring and the receiving end tuning matching unit rail lead wiring. And locate the fault location.

Further, the smart diagnosis host is further provided with a display screen for displaying the fault name, type and position information of the track circuit.

Further, the track circuit fault diagnosis system is applied to fault diagnosis of a ZPW-2000A track circuit system, and the ZPW-2000A track circuit system includes an outdoor part, an indoor part, and a lightning protection part of the system, and the outdoor part includes a tuning match. The unit, the air-core coil, the compensation capacitor and the cable; the indoor part comprises a transmitter, a receiver, a direction switching circuit and an attenuator; the lightning protection part of the system comprises a lightning protection analog network at the transmitting end and a lightning protection analog network at the receiving end.

Further, a cloud server is further disposed in the track circuit fault diagnosis system, and the upper computer and the intelligent diagnosis host both communicate with the cloud server through a network.

A track circuit fault diagnosis method includes the following steps:

Real-time monitoring of the electrical characteristics of each segment of the track circuit, when there is a segment is occupied in an abnormal order, it is determined that the segment is faulty;

The change data of the fault section and the two sections before and after and the pre-stored normal value data are input into the ZPW-2000A simulation diagnosis model;

The ZPW-2000A simulation diagnosis model calculates the fault area based on the received change amount data and normal value data of each segment.

The present disclosure has the following advantages: the disclosed track circuit fault diagnosis system is specifically applied to the fault diagnosis of the ZPW-2000A track circuit, and can perform secondary operations according to a certain algorithm by using the collected data, thereby enabling faults to be performed. Analysis and intelligent judgment, give maintenance, maintenance and guidance, and guide on-site personnel to maintain the track circuit equipment, which can greatly improve the efficiency of on-site fault handling and reduce the impact on train transportation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present disclosure, and other drawings may be obtained from those skilled in the art without any inventive effort.

1 is a schematic structural diagram of a track circuit fault diagnosis system according to an embodiment of the present disclosure;

2 is a schematic structural diagram of a ZPW-2000A track circuit system according to an embodiment of the present disclosure;

FIG. 3 is a flowchart of a method for fault diagnosis of a track circuit according to an embodiment of the present disclosure.

In the figure: 1-upper machine; 2-track circuit monitoring and maintenance terminal; 3- intelligent diagnosis host; 4-communication interface board; 5-line line collector; 6-outdoor current detection equipment.

Detailed ways

In order to make the objects, technical solutions, and advantages of the present disclosure more clear, the technical solutions of the present disclosure will be described in detail below. It is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

As shown in FIG. 1 , the present disclosure provides a track circuit fault diagnosis system, which includes a host computer 1, a track circuit monitoring and maintenance terminal 2, an intelligent diagnosis host 3, a communication interface board 4, and a branch line collector 5, and a host computer 1 The track circuit monitoring and maintenance terminal 2 communicates through the Ethernet port, and the track circuit monitors the maintenance terminal 2 and the intelligent diagnosis host 3 to perform data transmission through the Ethernet port. The communication interface board 4 and the branch line collector 5 are respectively connected to the track circuit monitoring and maintenance terminal 2 and the intelligent diagnosis host 3 via the CAN bus.

The communication interface board 4 is configured to collect the power output voltage and the work current of the transmitter, and upload the main rail output voltage and the small rail output voltage of the receiver. The branch line collector 5 is configured to collect the cable side voltage of the sending and receiving end at the indoor and outdoor interfaces of the track circuit and the voltage of the device side of the sending and receiving end, and the current information of the cable side of the transmitting end.

The track circuit monitoring and maintenance terminal 2 adopts an existing data collection and forwarding type product.

The intelligent diagnosis host 3 receives the track circuit to monitor the data uploaded by the maintenance terminal 2 through the Ethernet line. The solid line in FIG. 1 indicates the existing information transmission channel, and the broken line indicates the information transmission channel reserved by the intelligent diagnosis host 3, which can be implemented by replacing the multi-end cable.

As shown in Figure 2, the ZPW-2000A track circuit system mainly includes three parts: the outdoor part, the indoor part and the system lightning protection.

The outdoor section includes a tuning matching unit, an air core coil, a compensation capacitor, and a cable. The tuning matching unit and the air-core coil form a tuning zone for electrically isolating the circuits of two adjacent tracks. The compensation capacitor is used to ensure good transmission performance of the track circuit.

The indoor section includes a transmitter, a receiver, a direction switching circuit, and an attenuator. The transmitter is used to generate a highly stable, high precision frequency shift signal source using microelectronic devices.

The receiver is mainly used for demodulating the frequency shift signal of the main track circuit, and is matched with the inspection condition of the short track circuit of the tuning area connected with the power transmitting end, and the action track relay is set. It can realize the demodulation of the frequency shift signal of the short track circuit connected to the power receiving end, and give the short track circuit execution condition and send it to the circuit receiver of the adjacent track. At the same time, it is also possible to check the integrity of the track circuit, reduce the length of the shunt dead zone, and also use the receiving threshold control to check the broken BA. In addition to receiving the frequency signal of the main track circuit, the receiver also receives the frequency signal of the adjacent track small track circuit. The receiver uses DSP digital signal processing technology to quickly convert the received two frequency signals and make decisions. The attenuator is mainly used to realize the adjustment of the main track circuit and the small track circuit.

The lightning protection part of the system includes a lightning protection analog network at the transmitting end and a lightning protection analog network at the receiving end. The system lightning protection section protects the lightning strikes introduced from the cable in both horizontal and vertical directions.

For the ZPW-2000A track circuit system shown in FIG. 2, the intelligent diagnosis host 3 is provided with a direction switching circuit area fault locating module, an analog network fault locating module, a cable channel fault locating module, a tuning area fault locating module, and a main rail line fault. Positioning module. The direction switching circuit area fault locating module is configured to detect whether there is a fault in the indoor transmitting end direction switching circuit area and the indoor receiving end direction switching circuit area, and locate the fault location. The analog network fault locating module is used to detect whether there is a fault in the analog network of the transmitting end and the analog network of the receiving end, and locate the fault location. The cable channel fault locating module is configured to detect whether there is a fault in the cable channel of the outdoor transmitting end cable and the outdoor receiving end cable, and locate the fault location. The tuning area fault locating module is configured to detect whether there is a fault in the outdoor transmitting end tuning area and the outdoor receiving end tuning area, and to locate the fault location. The main rail line fault locating module is used to detect whether there is a fault on the main rail line and to locate the fault location.

In the above embodiment, as shown in FIG. 1 , the track circuit fault diagnosis system of the present disclosure is further provided with an outdoor current detecting device 6 , and the outdoor current detecting device 6 is respectively connected to the track circuit monitoring and maintenance terminal 2 and the intelligent diagnostic host 3 via the CAN bus. . The outdoor current detecting device 6 collects the rail lead current and the cable side current of the outdoor tuning matching unit through the PLC bus and uploads it.

The intelligent diagnosis host 3 is also provided with a rail lead wiring fault locating module, and the rail lead wiring fault locating module is used for detecting whether there is a fault in the transmitting end tuning matching unit rail lead wiring and the receiving end tuning matching unit rail lead wiring, and the fault location is performed. Positioning.

The track circuit fault diagnosis system of the present disclosure automatically calculates the indoor and outdoor faults, the location of the faulty cable type and location of the transmission channel, and the location of equipment faults such as the tuning matching unit by calculating the variation of the indoor electrical characteristics.

In the above embodiment, the smart diagnosis host 3 is further provided with a touch screen for displaying the fault name, type and position of the track circuit, so that the field staff can clearly understand the fault location and can perform maintenance and maintenance in time.

In the above embodiment, the intelligent diagnosis host 3 is further provided with a voice output module, and the voice output module is used for voice broadcast of the fault type and position of the track circuit, thereby facilitating on-site staff to understand the fault location and timely performing maintenance and maintenance.

In the above embodiment, the cloud circuit server is further disposed in the track circuit fault diagnosis system of the present disclosure, and the host computer 1 and the intelligent diagnosis host 3 both communicate with the cloud server through the network. The cloud server receives information such as the type and location of the fault of the track circuit, and gives instructions for maintenance and maintenance.

As shown in FIG. 3, the present disclosure also provides a track circuit fault diagnosis method, which includes the following steps:

S1, real-time monitoring of the electrical characteristics of each segment of the track circuit, when there is a segment is occupied in an abnormal order, it is determined that the segment is faulty.

S2. The variation data of the three consecutive segments with electrical specific changes (ie, the fault segment and the two segments before and after) and the pre-stored normal value data are input into the ZPW-2000A simulation diagnosis model.

The S3 and ZPW-2000A simulation diagnosis models calculate the fault area based on the received change amount data and normal value data of each segment. The fault area is output by the host computer.

The disclosed track circuit fault diagnosis system has the following advantages: the installation interface is simple, does not have any adverse effects on the track circuit; can adapt to various software and hardware versions of the on-site track circuit equipment and the monitoring and maintenance terminal; can flexibly adapt to various different collections on the site Equipment configuration; full coverage of all types of in-use of the track without changing configuration, including different configurations, different capacitors, different lines, different track beds, different section lengths, different cable lengths, etc.; When the voltage change or occupancy status of the track circuit section does not match the normal operation scene of the train, the track circuit can be faulted for early warning and fault alarm positioning.

The track circuit fault diagnosis system of the present disclosure logically judges, comprehensively analyzes and processes data uploaded by indoor and outdoor monitoring points, and starts a fault diagnosis algorithm when judging abnormal voltage or current value of the track section or abnormal red light band occurs. Logic, locate the fault point and output fault diagnosis results and processing suggestions to the display device. The disclosed track circuit fault diagnosis system can accurately point to a single point position for about 60% of the faults, and does not need to perform a secondary search.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure. It should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be determined by the scope of the claims.

Claims

A track circuit fault diagnosis system, which comprises a host computer, a track circuit monitoring and maintenance terminal, an intelligent diagnosis host, a communication interface board and a branch line collector, and the host computer and the track circuit monitoring and maintenance terminal pass through an Ethernet port. Communicating, the track circuit monitoring maintenance terminal and the intelligent diagnosis host perform data transmission through the Ethernet port; the communication interface board and the branch line collector respectively monitor the maintenance terminal and the intelligent diagnosis with the track circuit through the CAN bus The communication interface board is configured to collect the power output voltage and the work current of the transmitter, and upload the main rail output voltage and the small rail output voltage of the receiver; the line collection device is configured to collect the indoor and outdoor interfaces of the track circuit. At the delivery end cable side voltage, the receiving end cable side voltage, the sending end device side voltage, and the receiving end device side voltage, and the transmitting end cable side current information.
The track circuit fault diagnosis system according to claim 1, wherein the intelligent diagnosis host is provided with a direction switching circuit area fault location module, an analog network fault location module, a cable channel fault location module, a tuning area fault location module, and a master. The track line fault locating module is configured to detect whether there is a fault in the indoor transmitting end direction switching circuit area and the indoor receiving end direction switching circuit area, and locate the fault location; the analog network fault location The module is configured to detect whether there is a fault in the analog network of the transmitting end and the analog network of the receiving end, and locate the fault location; the cable channel fault locating module is configured to detect whether the cable channel of the outdoor transmitting end cable and the outdoor receiving end cable channel are faulty, and Positioning the fault location; the tuning zone fault location module is configured to detect whether there is a fault in the outdoor transmit end tuning zone and the outdoor receive end tuning zone, and locate the fault location; the main rail line fault location module is configured to detect Whether the main rail line is saved In the event of a fault, locate the fault location.
The track circuit fault diagnosis system according to claim 1 or 2, wherein the track circuit fault diagnosis system is further provided with an outdoor current detecting device, and the outdoor current detecting device monitors and maintains the track circuit through the CAN bus, respectively. The terminal is connected to the intelligent diagnostic host.
The track circuit fault diagnosis system according to any one of claims 1 to 3, wherein the outdoor current detecting device collects and uploads the rail lead current and the cable side current of the outdoor tuning matching unit through the PLC bus.
The track circuit fault diagnosis system according to any one of claims 1 to 4, wherein the intelligent diagnostic host is further provided with a rail lead wire fault locating module, and the rail lead wire fault locating module is used for detecting the transmitting end tuning match. Whether there is a fault in the unit rail lead wire and the receiving end tuning matching unit rail lead wire, and the fault location is located.
The track circuit fault diagnosis system according to any one of claims 1 to 5, wherein the intelligent diagnostic host is further provided with a display screen for displaying the fault name, type and position information of the track circuit. .
A track circuit fault diagnosis system according to any one of claims 1 to 6, wherein said track circuit fault diagnosis system is applied to fault diagnosis of a ZPW-2000A track circuit system; said ZPW-2000A track circuit system including an outdoor part The indoor portion and the lightning protection portion of the system, the outdoor portion including a tuning matching unit, an air core coil, a compensation capacitor and a cable; the indoor portion includes a transmitter, a receiver, a direction switching circuit, and an attenuator; It includes a lightning protection analog network at the transmitting end and a lightning protection analog network at the receiving end.
The track circuit fault diagnosis system according to any one of claims 1 to 7, wherein a cloud server is further disposed in the track circuit fault diagnosis system, and the upper computer and the intelligent diagnosis host are both performed with the cloud server through a network. Communication.
A track circuit fault diagnosis method includes the following steps:

Real-time monitoring of the electrical characteristics of each segment of the track circuit, when there is a segment is occupied in an abnormal order, it is determined that the segment is faulty;

The change data of the fault section and the two sections before and after and the pre-stored normal value data are input into the ZPW-2000A simulation diagnosis model;

The ZPW-2000A simulation diagnosis model calculates the fault area based on the received change amount data and normal value data of each segment.