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Research on Map-Matching Based on GPS/GPRS Positionging System of ARM9

Author: WangYingRui
Tutor: RenChuanXiang
School: Shandong University of Science and Technology
Course: Navigation,Guidance and Control
Keywords: Vehicle Location Probability and statistics map matching S3C2410A GPS GR-87 GPRS M23 The rectangular error of area
CLC: P228.4
Type: Master's thesis
Year: 2011
Downloads: 82
Quote: 0
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Abstract


In recent years, with the rapid development of the national economy , the domestic car ownership is increasing year by year , increasing traffic flow has brought great difficulties to traffic management departments . At the same time, highway network continues an extension , has been with the city 's transportation network well together . Road transport network by piece and even became the face, basically the formation of a national transport network , which makes road network increasingly complex . To some extent before an impossible problem is the problem of how to get replaced . Therefore, many cities are planning or have begun to establish their own set of complete intelligent traffic monitoring platform system , vehicle positioning and map-matching technology to provide important technical support for the management of road traffic . This article is designed to establish a vehicle terminal hardware system , a simulation study and map-matching algorithm based on probability and statistics . First Samsung S3C2410A processor as the master chip , external expansion GPS GR-87 positioning information receiving module , the GPRS - M23 communications sent module as well as other related peripherals to complete the system hardware circuit design of the vehicle terminal . Then , u-boot debugging , the system of receiving and processing of GPS data , combined with GPRS wireless transmission network technology to achieve bi-directional data transfer capabilities of the mobile vehicle monitoring center , complete vehicle tracking and remote monitoring . Subsequently, on the basis of the GPS data obtained by using the the probability statistics map matching algorithm is corrected to the position of the vehicle on the electronic map in the rectangular error region ; algorithm replaces the traditional oval error region to reduce the amount of computation , continuous two roads at the crossing point is stored road shorter , thus increasing the reliability of the intersection point matching . Finally , by insertion MAPX control in VC environment , the algorithm simulation, to verify the effectiveness of the algorithm .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
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