| 摘要 |
The apparatus is for distinguishing door opening, and generating an alarm signal by use of a lamp or a diode. It comprises a number of sensors, installed in each door, detecting if a door gets open; a microprocessor(14) for generating flickering signal of different frequencies based on the kinds of the sensors; a speed sensor connected to the microprocessor(14); and a means for converting the flickering state into the turning-on state if the speed of the automobile is over a reference and the door continues to be open.
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