| 摘要 |
PROBLEM TO BE SOLVED: To avoid a driver's dozing off at the wheel, record information conducive to the analysis of factors behind the dozing off at the wheel and report to an operation manager and attract an attention to vehicles around. SOLUTION: The vigilance detector has a recording means to record the history of detection of a decrease in vigilance or the history of an issuance of warnings and wirelessly sends the records of the recording means to prescribed addressees, and the prescribed addressees are operation managers or vehicles around. COPYRIGHT: (C)2008,JPO&INPIT
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