| 摘要 |
<p>PURPOSE:To accurately analyze an accident at the time of its occurrence by providing a recording means with a recording area where operation data at a prescribed time can be recorded and successively and repeatedly recording operation data in this recording area to always record the latest operation data. CONSTITUTION:Operation data consisting of vehicle speed data and time data which is read in at intervals of a sampling period is recorded from the first address to the last address of a preliminarily set recording area of a RAM card (recording means) 7 as the recording means. When operation data is recorded up to the last address, operation data is successively recorded from the first address again. That is, operation data is repeatedly recorded in the same recording area, and therefore, a graph end address and a graph start address are updated to record the latest operation data at a prescribed running time. Thus, an accident is accurately analyzed at the time of its occurrence.</p> |
