Vehicle area recognizing method

A method of identification, a technology of vehicle zones, applied in the field of traffic demand management

Inactive Publication Date: 2008-04-02
CHINA AUTOMOTIVE TECH & RES CENT +2
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Problems solved by technology

In order to solve the problem of urban traffic congestion, many developed countries and developing countries are building a large number of road infrastructures, but due to the rapid increase in the number of motor vehicles and the population cluster effect in the process of urbanization, it is difficult to build road infrastructure alone. Fundamentally solve the problem of urban traffic congestion

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Embodiment Construction

[0040] At present, the mathematical algorithms for judging whether a point is contained by a polygon include ray method, arc length method, corner method, symbol method and grid method. The corner method and the symbol method are suitable for the area where the boundary is a continuous function, and the algorithm is complex, and it is difficult to meet the real-time requirements; although the ray method is simple and practical, because the ray method has its limitations, that is, when the ray passes through the inflection point of the polygon or a certain On one side, using the ray method will produce wrong judgment results; although the raster method has the outstanding advantage of simple data structure, its data volume depends on the size of the pixel. When dividing, it will encounter the problem of massive data storage, which is difficult to handle due to the limited storage space of general microcomputers.

[0041] The arc length method requires that the polygon is compos...

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Abstract

The present invention provides a vehicle region identifying method based on component geographic information system, which is realized by a publicly known computer storing component geographic information system software. The computer also stores a region identification main program and a region identification subprogram, which are sued to accomplish the judgment whether the position of a vehicle is in some region or not. The present invention is applied to traffic demand management and used to judge whether the position of some vehicle is in a crowded region or road section, which provides technical support for realizing traffic demand management and solving urban traffic jam effectively.

Description

technical field [0001] The invention relates to an area identification method, in particular to a vehicle area identification method using Global Positioning System technology (Global Position system, GPS for short), which is applied in the field of traffic demand management. Background technique [0002] The appearance of automobiles has made people's travel and cargo transportation faster and more convenient, but while it has brought huge benefits to mankind, it has also caused a series of problems, such as urban traffic congestion and the resulting traffic accidents; traffic accidents Then further exacerbate the traffic congestion and even cause traffic jams. In order to solve the problem of urban traffic congestion, many developed countries and developing countries are building a large number of road infrastructures. However, due to the rapid increase in the number of motor vehicles and the population cluster effect in the process of urbanization, it is difficult to buil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G08G1/123G09B29/00
Inventor 陈弘李广霞冯琦乔胜华
Owner CHINA AUTOMOTIVE TECH & RES CENT
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