A tram routing control method based on LTE train-to-ground continuous communication

Abstract

The invention relates to a trackside approach control method for trams based on LTE vehicle-ground continuous communication, comprising: initializing trackside interlocking equipment and on-board equipment; establishing communication between on-board equipment and trackside interlocking equipment and periodically sending trains The message is sent to the trackside interlocking device; the trackside interlocking device periodically calculates the front and rear positions of each train according to the train message; judges whether the train-ground communication in the communication area is interrupted and re-established; judges whether the train is a train in a different direction , if yes, the wayside interlocking equipment will only handle the entry for the first train according to the positioning of each train; After leaving the communication area, the on-board equipment and the trackside communication equipment are disconnected from the communication connection. Compared with the prior art, the present invention has the advantages of completely solving the problem of the rear vehicle handling the wrong route for the preceding vehicle, high efficiency and low cost.

Description

technical field [0001] The invention relates to a method for controlling a route of a tram, in particular to a method for controlling a trackside route of a tram based on LTE vehicle-to-ground continuous communication. Background technique [0002] In the modern tram signal system, the on-board automatic route management is a degraded mode as the central route management, and gradually becomes a main route management method. Before the train passes the turnout, the interlocking process must be completed first. After the road and signal are opened, the train driver can drive according to the trackside signal and pass through the fork area. At present, the vehicle-mounted approach management method is more to send the route management command to the trackside switch controller to complete the route management through short-distance communication equipment such as point beacons or ring lines. This method will be as follows in actual operation Some cons: [0003] 1. The route ...

AI Technical Summary

Problems solved by technology

[0003] 1. The route processing command sent by the first train through point or short-distance communication cannot be interlocked and pre-stored. Once the route cannot be processed in time (if there is a hostile route in other directions), the train will stop at the fork area and wait Make up the route in other ways. At this time, when the second train behind passes the point beacon or the circle line again, it will issue a route command in other directions to the trackside and the route is processed successfully, resulting in the second train handling the route for the first train. The approach in the wrong direction has great potential safety hazards to driving safety

[0004] 2. For the above-mentioned first train, when the hostile route does not exist, the driver needs to make up the route for the train through other methods (telephone contact dispatching or on-board manual), especially when the traffic is complicated at the intersection, it will be extremely serious Affects the operating efficiency of trains

[0005] 3. Modern trams strictly follow the pre-compiled train operation diagram every day, and there are certain assessment indicators for the arrival and departure time of trains. For some multi-directional and complex intersections, the order in which each train passes through the intersection will be greatly affected. Affects the arrival and departure time of each station after the train passes. At present, the trackside switch controller based on the point type and the ring line cannot manage the order of the multi-directional and complex intersections based on the extremely limited train information, so it cannot According to the pre-compiled timetable, orderly process the route of each train, which will eventually affect the punctuality rate, passenger service level and operation efficiency of the entire train line

[0006] 4. The current train-to-ground communication methods based on point and loop lines need to arrange communication equipment near the trackside full-line forks, which will also increase project costs and increase the workload of later maintenance.

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