Train track occupation detection method and device based on satellite positioning

Abstract

The embodiment of the invention provides a train track occupation detection method and a train track occupation detection device based on satellite positioning. The method mainly comprises the steps: satellite positioning receivers on the head and the tail of a train are used for receiving satellite ephemeris data and pseudorange data, and positioning positions of the head and the tail of the train are calculated according to the satellite ephemeris data and the pseudorange data; a positioning horizontal protection distance of the train is calculated according to a set positioning omission rate and a false detection rate; and the positioning positions of the head and the tail of the train are mapped on a track line by combining with an electronic map according to the positioning horizontal protection distance of the train, so that an occupation section of the train on the track line can be obtained. According to the embodiment of the invention, the satellite positioning receivers are arranged on the head and the tail of the train, so that the occupation calculation of the train on the section track can be completed by only utilizing vehicle-mounted apparatuses, ground apparatuses such as track circuits or axle counters are not needed, the constriction cost and the maintenance cost of the ground apparatuses are greatly saved, and the cost is greatly saved.

Description

technical field [0001] The invention relates to the technical field of train operation control, in particular to a method and device for detecting train track occupancy based on satellite positioning. Background technique [0002] When the train is running on the railway, the detection of track occupancy is the basis of the train operation control. The detection and confirmation of whether the railway line is free or occupied is an important condition to ensure the safety of railway traffic. At present, the existing orbit occupancy determination methods are as follows: [0003] (1), track circuit [0004] The components of the track circuit are: information sending equipment, rails, and information receiving equipment. Its working principle is: the information sending equipment uses two steel rails as the transmission line to transmit the information to the information receiving equipment. When the train wheel set steps on the rail, the rail is short-circuited, and the in...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned existing track occupancy detection methods are realized by using ground equipment such as track circuits or axle counters, and the construction cost is relatively high. As electrical equipment, track circuits and axle counters require regular performance testing and parameter calibration, human resource costs and Equipment maintenance costs are high

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