Regional speed limit value obtaining method, device and terminal device

Abstract

The present invention provides a regional speed limit value obtaining method, a regional speed limit value obtaining device and a terminal device. The regional speed limit value obtaining method includes the following steps that: electronic map data are preprocessed, track sections on a train running line in the electronic map data are mapped to a coordinate system; the speed limit data of the temporary speed limit and fixed speed limit of the train in the track sections are respectively stored in a temporary speed limit information list and a fixed speed limit information list according to the coordinates of the track sections in the coordinate system; speed limit data in the temporary speed limit information list and the fixed speed limit information list are combined, so that the most stringent speed limit list of the train is obtained; and the most stringent speed limit value of a region corresponding to the real-time coordinate position of the train is searched out form the most stringent speed limit. With the regional speed limit value obtaining method, regional speed limit value obtaining device and terminal device of the invention adopted, the plurality of temporary speed limit data are combined in a one-off manner into the most stringent speed limit list, and therefore, the logic processing of the query of the electronic map data is simplified, and program efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of rail transit, and in particular to a method, device and terminal equipment for obtaining regional speed limit values. Background technique [0002] In the existing related schemes, the line fixed speed limit and temporary speed limit are regarded as two sources of speed limit information, and then according to whether the temporary speed limit information is received to determine which speed limit value to use to calculate the current allowable speed and protection curve. In addition, in the existing related schemes, the position information of the fixed speed limit and the temporary speed limit of the line is described in the form of electronic map data, that is, the track identifier (Identifier; hereinafter referred to as: ID) and the track offset are used to represent the specific location of a point. Location. [0003] In this way, when processing multiple temporary speed limit data, when u...

AI Technical Summary

Problems solved by technology

[0003] In this way, when processing multiple temporary speed limit data, when using the description method of the electronic map to calculate the protection curve, the query interface of the electronic map will be called frequently, the logic processing is complicated, and the program efficiency is low

Images