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.