| 摘要 |
PROBLEM TO BE SOLVED: To make vehicle detection surer by judging the continuity of detection states of a multiple optical axis sensor in a height direction and making only what has height to some degree a detection start condition and also to discriminate a slender tractor draw-bar connected to a vehicle to detect a tow vehicle by deciding the temporal continuity and the size of the ON state area of the multiple optical axis sensor. SOLUTION: This vehicle detecting device is provided with a multiple optical axis sensor 1 consisting of plural optical sensors arranged in a height direction, a run generating means 2 which inputs a signal of the multiple optical axis sensor in a fixed interval, scans the detection state of the sensor in the height direction and converts it into information of the start and end positions of an ON state, a continuity deciding means 3 which detects the temporal continuity of a run of each input and a detection result deciding means 4 which decides the detection state of a vehicle from a run generated by the run generating means and the decision results of the continuity deciding means.
|
