| 摘要 |
FIELD: automotive industry. SUBSTANCE: antitheft device has alarm signalling unit 9, pickup of unallowable getting into a car, and receiving/transmitting system. The pickup is made up as angle reflector 1 mounted immediately in the car cabin. The receiving/transmitting system comprises infrared transmitter 2 optically connected with infrared receiver 7 through angle reflector 1. The photodetector is connected with alarm signalling unit 9. EFFECT: enhanced reliability. 1 dwg |
