FIELD: transport engineering; systems to prevent unauthorized use of vehicles.
SUBSTANCE: control signals corresponding to orders, for instance, door opening or engine starting, are transmitted to vehicle in form of sound codes, fragments or melodies. Digital reference codes of amplitude-frequency and time parameters of sound codes, fragments and melodies corresponding to control signals of orders are recorded in memory board the vehicle. Amplitude-frequency and time parameters of received sound codes, fragments and melodies are determined and converted into digital control codes and are compared with reference codes of amplitude-frequency and time parameters of sound codes, fragments or melodies. Then weight processing of results obtained is carried out and compared with preset threshold and if threshold is exceeded, control actions corresponding to orders are supplied to protection system, units and sets of vehicle.
EFFECT: enlarged functional capabilities of protection system, provision of positive emotional of vehicle Users.
5 cl, 1 dwg
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