| 摘要 |
PROBLEM TO BE SOLVED: To provide a system which enables a general driver to surely and speedily noticing the approach of an emergency automobile with a red rotating lump, a siren and at the same time with any other means even on any conditions in order to cope with the problem that it is difficult for a general driver or the like to detect the approach of the emergency automobile only from the red rotating lump or siren because of increase in noises and the number of automobiles, complicated roads and automobiles which are tightly sealed against the infiltration of sounds with the times in the recent years. SOLUTION: The emergency automobile is provided with a radio wave transmitter for the output of fixed frequency, which can be dispatched within a fixed range, and such a radio wave is transmitted together with the operation of the red rotating lump and the siren in the case of emergency dispatching. Then, a receiver capable of receiving that radio wave within the fixed range and transmitting an alarm to a human being inside a car is provided inside the automobile except for the emergency automobile. Further, this emergency automobile radio wave searching system is provided equipment for temporarily stopping the alarm by resetting the receiver, which receives the radio wave and transmits the alarm, restarting the receiver after the lapse of dozens of seconds from the stop of the alarm and automatically starting a re-receiving state for the approach of the next emergency automobile.
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