| 摘要 |
<p>A car device for traffic condition alarm, collision preventive alarm and burglar alarm purposes wherein the internal circuit comprising a burglar alarm A, a car fail detector B, an emission sensur C, a transmitter(D), and a receiver 20 the front panel comprising a plurality of indicating lamps 65 for indication of different items in different frequency, a buzzer 11 and a plurality of switches (14, 15, X Y Z ST) said alarm system being arranged to install inside the car with the terminal of the transmitter (D) mounted on the rear part of the car for a practical range within 180 DEG from the right back diresction of the car and with the terminal of the receiver 20 arranged at the front part of the car for a practical range within 180 from the right front direction of the car to prevent from receiving the output signal from the transmitter D of the car and other extraneous signals; at the time of right signal being detected, the burglar alarm detector that being arranged at each door of the car and the car fail detector (B) being energized to drive the transmitter D through the emission sensor to provide signals of traffic condition alarm, burglar alarm, and collision preventive alarm.</p> |
