| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: method of protecting a car security system from unauthorised use includes a receiving device mounted on a car and a portable transmitting user device, wherein the transmitting device creates a code package using an encryption key and transmits the package to the receiving device. When reprogramming the system, particularly in case of real or imaginary malfunction of the system, communication between the portable transmitting device and the receiving device is carried out through an information transmission channel which does not use a radio signal.EFFECT: low risk of information interception.5 cl, 1 dwg |
