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Method of location early warning in official vehicle monitoring

An official vehicle and generation algorithm technology, which is applied in the field of position warning in the supervision of official vehicles and the field of position warning of official vehicles, which can solve the problems of boundary distortion, inability to meet the actual needs of official vehicles, and insufficient accuracy.

Active Publication Date: 2013-05-15
LINEWELL SOFTWARE
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, there are mainly two traditional algorithms for buffer analysis, one is the angle bisector algorithm, and the other is the convex angle arc algorithm, both of them are deficient in generating buffers, and there is a phenomenon of boundary distortion, especially when dealing with buffer boundaries. The accuracy of the self-intersection problem is not enough, and it cannot meet the actual needs in the supervision of official vehicles

Method used

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  • Method of location early warning in official vehicle monitoring
  • Method of location early warning in official vehicle monitoring
  • Method of location early warning in official vehicle monitoring

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Embodiment Construction

[0050] A method for position early warning in official vehicle supervision, comprising the following steps:

[0051] Step 1. Use the buffer analysis and generation algorithm to generate sensitive location buffers, specified line buffers, and electronic fence buffers according to the warning category and buffer radius:

[0052] (1) Generation of sensitive site buffers:

[0053] like figure 1 As shown, the coordinate point of the sensitive site is A, and the result of the algorithm is to generate a buffer of coordinate point A.

[0054] Take any point B on the plane where point A is located, connect the two points A and B as the buffer radius r, set the angle formed by the buffer radius r around point A in the clockwise direction to the X axis as α, and the center of the circle A(x,y), The buffer radius r rotates the angle β counterclockwise around point A to generate point coordinates A'(x',y'),

[0055] where x'=x+Υ 1 *sin(α+β)

[0056] y’=y+Y 1 *cos(α+β)

[0057] β=0,Y...

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Abstract

The invention discloses a method of location early warning in official vehicle monitoring. Buffering radiuses are respectively winded into each point rotation of a target object to generate a target buffering zone frontier. A sensitive location buffering area, a regulated route buffering area and an electronic guardrail buffering area can be accurately formed according to the preset early warning type and the buffering radiuses. The method of location early warning in official vehicle monitoring solves the problem of distorting phenomenon of frontiers of the regulated route buffering area and the electronic guardrail buffering area, solves the problem of self-interaction of the regulated route buffering area and the electronic guardrail buffering area, combines the buffering area algorithm and a monotonous chain algorithm creatively, constructs a buffering area only by obtaining coordinate sets and buffering radiuses corresponding to the sensitive location, the regulated route and the electronic guardrail, judges space relation of the official vehicle location and the sensitive location, the regulated route and the electronic guardrail, generates early warning and has strong operability.

Description

technical field [0001] The present invention relates to the fields of geographic information system (GIS) and official vehicle supervision, and in particular to a method for position early warning in official vehicle supervision, specifically a method for space determination by using a buffer analysis generation algorithm and a monotonic chain alarm algorithm A method for early warning of the position of official vehicles. Background technique [0002] At present, my country is building a conservation-oriented harmonious society, and government functional departments must also strengthen their own management, and the supervision of official vehicles is a very important part of it. The key technical difficulty of location early warning in the supervision of official vehicles is: how to accurately determine whether an official vehicle has arrived at a sensitive location, deviated from the prescribed route, or entered and exited the electronic fence, and can generate early warn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/123
Inventor 王国顺王维龙傅光风
Owner LINEWELL SOFTWARE
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