关键词: 能交通, 基站切换对, 混合地图匹配算法, 交通信息采集, 地图匹配

Abstract:

Traffic information collection based on mobile communication is one of the emerging technolo- gies of intelligent transportation system, the foundation of this method is positioning the vehicle- mounted mobile phone on electronic map, and the key to solve vehicle-mounted mobile positioning is the map match- ing technology. The basic rules of switching behavior is obtained form vehicle- mounted mobile phone, via analyzing the actual handover data of cell-towers generated from vehicle-mounted mobile phone which run- ning on different network. To study the key problem of map matching by using handover data of cell-towers, combining with the data structure characteristic of the electronic map. On the basic of using handover pair of cell-towers instead of stability switching sequence, a hybrid algorithm is put forward which combines coordi- nates of base station with pattern sequences matching to narrow the chosen sections set, deal with the inter- section and parallel sections, and improve correct matching rate. Finally, Guangzhou Higher Education Mega Center is selected for the test area, it verifies the algorithm is feasible.

Key words: intelligent transportation, handover pair of cell-towers, hybrid map matching algorithm, traffic information collection, map matching