发明名称 Road status data providing system
摘要 A road status data providing system includes a server for transmitting/receiving data via a communication line and a plurality of vehicle terminals. The server includes a transmitting/receiving unit for transmitting/receiving data to and from the plurality of vehicle terminals, a vehicle trend management database for managing vehicle trends of the plurality of vehicle terminals, and a totaling unit for totaling status data indicative of a status of vehicles at a prescribed point on the basis of the vehicle trend management database. Each of the vehicle terminals includes a transmitting/receiving unit for transmitting/receiving data to and from the server, a present position determining unit for determining the present position of the vehicle, and a creating unit for creating status data requesting information for acquiring the status data at the prescribed point. <IMAGE>
申请公布号 EP1308917(A1) 申请公布日期 2003.05.07
申请号 EP20020257458 申请日期 2002.10.28
申请人 PIONEER CORPORATION 发明人 WATANABE, TOMO;ODA, TAMAMI;SATO, TSUYOSHI;SAITO, YUKITAKA
分类号 G01C21/00;G08G1/01;G08G1/09;G08G1/0968;G08G1/0969;(IPC1-7):G08G1/01 主分类号 G01C21/00
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