| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve problems that a drive recorder for photographing peripheral environments in traveling is provided with many sensors for detecting vehicle information, a distance from a target, etc. in order to analyze a vehicle accident and investigate a cause, the structure of the drive recorder is complicated and precise, and thereby the cost of the drive recorder is increased and the installation of the drive recorder in a vehicle may be complicated, and in adopting a means for inhibiting overwrite due to the detection of a shock in order to prevent the erasing of the stored data obtained by photographing the accident, the vehicle accident cannot be determined from the shock detection and the photographed data of the accident cannot be surely stored. <P>SOLUTION: When prescribed vibration is received by the control of a liquid switch using a conductive liquid, a drive recorder starts storing photographed data and successively switches areas of a nonvolatile memory in each start of storage to surely store the photographed data of an accident. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
