Method and system for acquiring turnout link object and link direction based on electronic map

Abstract

The invention relates to a method and system for obtaining turnout link objects and link directions based on an electronic map. The method comprises the following steps: acquiring a starting point link of a turnout in another track in an electronic map based on a turnout position to which a current position track of a train belongs, a turnout opening direction, a current position track link direction of the train, a direction from a current position track frog to a turnout frog front direction and a direction from the current position track frog to a turnout reverse position direction; and acquiring a next link object and a link direction after passing through the turnout on the basis of the turnout position to which the starting point link of the other track in the electronic map belongs, the link direction of the track at the other position and the direction from the turnout center to the reverse position of the turnout / the direction from the turnout center to the front of the turnout on the track at the other position. According to the method and the system, when the current track is linked to other tracks, the process of linking to the starting point position of the turnout on the other track is used as an intermediate process, and the turnout is linked to an actual linking object in the next linking process, so that the process of linking the turnout has better continuity.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a method and a system for acquiring link objects and link directions of a turnout based on an electronic map. Background technique [0002] In the train positioning technology based on satellite positioning and navigation, the train needs to calculate the running speed and running direction in real time, and report the train position to the ground equipment based on the physical or virtual transponder. However, the train may pass through the turnout during the train's advancing process. At this time, the track and direction of the train passing through the turnout cannot be determined according to the satellite positioning results. Therefore, it is necessary to combine information such as train running direction and turnout direction to confirm the track where the train is on and the running direction on the track after passing the turnout, so as to confirm the t...

AI Technical Summary

Problems solved by technology

When this method of obtaining link objects and link directions completed by one link is applied to the situation of changing tracks during train operation, there are problems such as insufficient continuity of link turnouts and low degree of integration with non-passing turnout object links.

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