Line offset early warning method and device

Abstract

The invention provides a line offset early warning method and device. The method comprises the following steps: receiving position information transmitted by a positioning terminal according to a preset time interval; according to a coordinate point of the positioning terminal included in the position information, judging whether the coordinate point drops into a plurality of preset rectangular regions; if so, taking the preset rectangular regions in which the coordinate point drops as target rectangular regions, and calculating the distance from the coordinate point to a preset line segment according to the preset line segment corresponding to the target rectangular regions so as to serve as a target distance; and judging whether the target distance is greater than a preset threshold, andif so, determining that a traveling route of the positioning terminal offsets and primary early warning information is generated so as to perform early warning. According to the method disclosed by the invention, the position information of the positioning terminal can be monitored and acquired in real time, early warning is performed in time during line offset, the normal traveling of the positioning terminal can be effectively ensured, and the operating cost and the monitoring cost can be reduced.

Description

Technical field [0001] The present invention relates to the technical field of information monitoring, in particular, to a line deviation warning method and device. Background technique [0002] In the existing vehicle satellite positioning monitoring system, the line deviation alarm is a common function, but the line length or the total number of line coordinate points are often limited. For example, the conventional line offset algorithm is to determine the distance between the coordinate point and the corresponding line segment in the line by drawing a perpendicular line between two points, and then traverse all the line segments in the line in turn, and finally according to the coordinate point to the smallest of these line segments The distance judges whether the coordinate points deviate from the specified distance of the line. From this, it can be clearly seen that this method increases the line coordinate points that need to be calculated per unit time, and the calculatio...

AI Technical Summary

Problems solved by technology

In addition, most of the existing satellite positioning vehicle monitoring platforms have high concurrency. Therefore, in order to operate normally, the satellite positioning vehicle monitoring platform can only increase the calculation amount per unit time by improving the hardware configuration of the server, or The purpose of reducing the amount of calculation is achieved by limiting the length of the route, but this is not in line with the route offset calculation of ultra-long routes in practical applications

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