Signal priority control device and method of tramcar at complex level crossing

Abstract

The invention relates to a signal priority control device and method of a tramcar at a complex level crossing. The signal priority control device and method are used for achieving signal priority control over the tramcar at the complex crossing. The control device is connected with a dispatching center server (DMS), a road traffic controller (TSC) and an interlocking controller (CBI) separately, the device comprises a complex crossing priority control equipment cabinet (OLC), a PLC, a current transducer and a crossing special annunciator, the PLC and the current transducer are arranged in thecomplex crossing priority control equipment cabinet (OLC), and the PLC is connected with the dispatching center server (DMS), the interlocking controller (CBI), the road traffic controller (TSC) and the crossing special annunciator separately; the PLC is connected with the crossing special annunciator through the current transducer. Compared with the prior art, the signal priority control device has the advantages of extendibility, universality and the like.

Description

technical field [0001] The invention relates to the field of rail traffic signals, in particular to a tram signal priority control device and method at complex level crossings. Background technique [0002] As a new type of transportation, modern trams are developing rapidly in China because of their environmental protection, comfort, punctuality, small investment, and short construction period. Compared with the fully enclosed subway, trams often adopt the mode of priority right of way, that is, in a part of the operating section, marking lines or physical isolation are used to build dedicated tram lanes, but at level crossings, Trams need to share the right of way with road traffic. Under the premise of ensuring that the operation of the entire intersection or main line vehicles is not seriously affected, trams have the right to pass in priority over other social vehicles. The signal control system of trams belongs to the category of rail transit. Drivers need to drive ac...

AI Technical Summary

Problems solved by technology

[0004] (1) Scalability: Most of the existing intersection priority controllers adopt the mode of machine cage plus expansion acquisition board. Since the size of the machine cage is fixed, it often takes up a lot of cabinet space, and the provided I / Limited number of O interface, communication interface, etc.

[0005] (2) Reliability: The complex intersection priority controller needs to perform data interaction with multiple systems, and there are many relay interfaces. It also needs to monitor the current of the signal machine and the operating status of the controller itself. The traditional intersection priority controller is often low and cause instability

[0006] (3) Centralization: The current solution for priority controllers at complex intersections is mainly to upload interlocking information, tram speed, location and other information as well as road traffic information to the control center, and then the control center issues comprehensive commands. In this mode, the intersection priority controller participates in too few decisions, the degree of intelligence is not high enough, and the dependence on the center is too strong

[0007] (4) Ease of development: complex intersection priority controllers need to have serial ports, network ports, relay interfaces, and current analog acquisition interfaces at the same time. The data interaction between different interfaces of traditional intersection priority controllers increases the instability of the system and limits Improved sampling frequency and accuracy

[0009] (6) Efficiency: The traditional complex intersection priority controller does not have the memory management function, and cannot realize the reasonable scheduling of vehicles when multiple vehicles arrive at the intersection without the assistance of the center

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