Tramcar trackside signal control system based on IP networked communication

Abstract

The invention relates to a tramcar trackside signal control system based on IP networked communication. The system comprises a dispatching command system DMS, a main track turnout control subsystem, an intersection priority control subsystem, a trackside target controller and trackside controlled equipment, wherein the dispatching command system DMS is respectively connected with the main track turnout control subsystem and the intersection priority control subsystem, the main track turnout control subsystem and the intersection priority control subsystem are respectively connected with the trackside target controller through the IP network, and the trackside target controller is connected with the trackside controlled equipment. Compared with the prior art, the system has the advantages of high safety, intelligence, high efficiency and the like.

Description

technical field [0001] The invention relates to a tramway signal control system, in particular to a tramway signal control system based on IP network communication. Background technique [0002] The current tram signal system is mainly composed of the central train dispatching command system, trackside equipment and control system, and on-board signal system. The communication between the dispatching center and the trackside equipment is connected by industrial Ethernet. The control system sends control commands, and the center and the vehicle usually use 4G or LTE communication before, but the current tram signal system still mainly uses traditional metal signal cables as the communication method between trackside equipment. [0003] Due to the wide variety of trackside equipment, including main line turnout controller subsystem, intersection priority control subsystem cabinet, switch machine, signal machine, beacon, axle counting, etc., and the distance between different e...

AI Technical Summary

Problems solved by technology

However, the communication method of metal cables is limited by resistance, voltage and other reasons, so the communication distance is only about 18 kilometers at most.

The construction environment of the site is complicated because the tram line is long and passes through residential areas. The traditional method of using metal cables as the communication method between trackside equipment will encounter many problems in the actual implementation of the project.

[0004] 1) It is necessary to purchase a large number of cables, and the initial cost is relatively large;

[0005] 2) It takes a lot of time to arrange cables during the implementation process, which has a great impact on the construction period and is not conducive to the rapid advancement of the project. For example, the connection of a common intersection priority control cabinet includes: 1. Uplink warning beacons, request beacons, Four beacons for approach beacons and departure beacons; 2. Four downlink beacons; 3. Four intersection signals; 4. Four social signals, and a three-light intersection signal requires 3*2 (positive and negative poles) six cables (some intersection signal lights have four lights, and 4*2 eight cables are required)

Therefore, the wiring process of trackside equipment is very cumbersome and error-prone. Many problems in the field test process are caused by wiring errors. Therefore, it takes a lot of time to check the wiring one by one and carry out color confirmation and proofreading.

Even if the error is detected, it still takes a lot of time to rewire

[0006] 3) The hard-line cables carrying high voltage need to be routed separately from other weak-current cables, otherwise it will bring potential safety hazards. After investigation, in the actual opening of the tram project, there have been explosions of strong-current cables in the cable wells. The reason is that the cables in the cable wells There is water for a long time, which causes the cable to be soaked in water for a long time, causing a great safety hazard;

[0007] 4) During the project debugging process, it is necessary to use special instruments to measure and analyze voltage, current and waveform, which increases the workload and difficulty of project debugging;

[0008] 5) The single use of metal cables as interlocking and communication methods between priority control cabinets at intersections and trackside terminal equipment cannot achieve channel backup and communication efficiency is low;

[0009] 6) In the later stage of the project, the cables need to be maintained, inspected and replaced regularly, and the labor and equipment costs are relatively large;

[0010] 7) Cables are easy to be stolen, especially some more important cables are more expensive and easy to be stolen

Images