| 摘要 |
<p>PURPOSE:To automatically record data without requiring driver's input work by providing a signpost at a pass or stop point of a vehicle and recording the place name code and the time received there. CONSTITUTION:The place name code of a pass or stop point of the vehicle is transmitted from a transmission part 22 of the signpost provided at this point. When the vehicle approaches the signpost, a reception part 6 attached to the vehicle receives and outputs the place name code transmitted from the signpost. A recording control part 5 records the received place name code and the time on a recording medium when the place name code is received by the reception part 6. It is preferable that the time to be recorded on the recording medium is calibrated by the time added to the place name code transmitted from the signpost. Thus, driver's labor is omitted.</p> |
