发明名称 |
Vehicle tracker, mileage-time monitor and calibrator |
摘要 |
A system for monitoring location and speed of a vehicle, using a location determination system such as GPS, GLONASS or LORAN and an optional odometer or speedometer, for determining and recording the locations and times at which vehicle speed is less than a threshold speed for at least a threshold time (called a "vehicle arrest event"). Vehicle arrest event locations, times and time intervals are stored and/or printed to provide trip and mileage records and for efficiency monitoring. A vehicle odometer and/or speedometer can also be calibrated and/or corrected using this approach.
|
申请公布号 |
US6353796(B1) |
申请公布日期 |
2002.03.05 |
申请号 |
US20000513265 |
申请日期 |
2000.02.24 |
申请人 |
TRIMBLE NAVIGATION LIMITED |
发明人 |
SCHIPPER JOHN F.;RODAL ERIC B.;JANKY JAMES M.;COWL DAVID J. |
分类号 |
G01C21/26;G01C22/02;G01S5/14;G01S19/30;G01S19/34;G01S19/47;G01S19/50;(IPC1-7):G06G7/78 |
主分类号 |
G01C21/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|