| 摘要 |
FIELD: protection of automobiles and other objects. SUBSTANCE: system is built around microprocessor. It has alarm devices, control module, information and command module, programmed frequency spectrum forming module and multifrequency radiotransmitting module. Provision of central microprocessor unit in combination with speech signal processing unit, digital information input unit and other units in control module and interaction of control module with alarm devices, information and command module, multifrequency radiotransmitting module for which car body serves as radiator, if system is used to protect car from hi-jacking, provide several stages of protection. Design peculiarity of system is provision of radio channel to communicate system transmitter with receiving-transmitting standard radio communication means of police stations and other services and possibility of transmission of speech message in case of alarm, for instance hi-jacking of car, over entire spectrum of frequencies of communication channels, starting from moment of operation of system caused by emergency situation. EFFECT: enhanced reliability of protection. 5 cl, 2 dwg |
