| 摘要 |
FIELD: transport; theft protection signalling devices. SUBSTANCE: signalling device has code element which is kept by user, receiver-radiator antenna and interlock circuit installed on car. Code element is made in form of resonant circuit inductively coupled with antenna of receiver-radiator connected to pulse burst generator and to switch whose output is connected with interlock circuit: square wave generator is connected through its direct output with pulse burst generator, and through inverted output, to interlock circuit switches. Receiver radiator antenna is enclosed in electrostatic screen. EFFECT: enhanced reliability of antitheft protection. |
