and the security warning safety system has the practical
significance. This article based on to the existing automobile
security alarm system generalized analysis, develops one kind
of brand-new security alarm system. This system has mainly
used the jump code code/decoding principle, causes the
overall system to be safer, greatly reduces password explaining
rate.
1. System principle of work
The automobile security alarm system the remote control
which carries by the driver and installs in the automobile the
controller two parts composes. The remote control and the
controller all use eight CMOS which American AT-MEL
Corporation produces the AVR monolithic integrated circuit,
this series monolithic integrated circuit based on new simplifies
instruction R the ISC structure, includes the service life most to
be few is 1,000 time writes/scratches the circulation the Flash
program memory, as well as the service life at least is
100,000time writes/scratches the circulation E the EPROM data-
carrier storage, some 2 only have when the entire piece
cleaning can clean the programming encryption locks the
localization.
