| 摘要 |
<p>PROBLEM TO BE SOLVED: To safely and rapidly cross a pedestrian and a vehicle crossing by detecting a vehicle and other obstacles to a forward and specific distance by an ultrasonic wave within a limited range when a vehicle is turn to the left and by flushing on and off a light at a front surface of the vehicle when the vehicle and other obstacles do not exist. SOLUTION: Rotation 1 of a wheel and an angle 2 of the wheel are detected by two sensors during driving of an engine and the time of non-rotation (stop) of the wheel and the time of a position parallel to a road of the wheel are determined as 0. When a vehicle is within a limited range of turning to the left, an existence or non-existence of a vehicle and other obstacles within 5 meters of the forward is at the same time detected by means of an ultrasonic wave 3. When the vehicle and other obstacles do not exist, a light 4 attached to a front surface center of the vehicle is flushed on and off. At this time, a lamp 5 installed in a car room is at the same time flushed on and off to inform a driver. These processes are controlled by a micro-computer 6. A mounting work of the above constitution is carried out in a maintenance factory having a specific technology.</p> |
