| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To manage sufficiently accurate and detailed mobile object movement history by a center without increasing operational costs. <P>SOLUTION: A mobile object positional information processor for transmitting the positional information of a mobile object in traveling to a position management center as movement history through a radio line between a radio base station and the position management center is loaded on the mobile object having a GPS receiver and provided with an extraction means for extracting the positional information at a time interval shorter than a prescribed time interval at which the positional information is periodically transmitted to the position management center and a control means for collectively transmitting a plurality of extracted positional information data to the radio line by one packet form. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
