Immobilizing Electronic Assembly

automotive electronics vehicle access and immobilizingsystems modules pcba motherboards assembly electronics contract manufacturingservices OEM CEM EMS experience company-China Shenzhen Topscom automotive immobiliser security device Electronics OEM EMS CEM Contract Manufacturing PCBA Assembly Services: An immobiliser or immobilizer is anelectronic security device fitted to an automobile that prevents the enginefrom running unless the correct key (or other token) is present. This preventsthe car from being "hot wired" after entry has been achieved and thusreduces motor vehicle theft. The electric immobilizeralarm system wasinvented by St. George Evans and Edward Birkenbuel and patented in 1919. Theydeveloped a 3x3 grid of double-contact switches on a panel mounted inside thecar so when the ignition switch was activated, current from the battery (ormagneto) went to the spark plugs allowing the engine to start, or immobilizingthe vehicle and sounding its horn. The system settings could be changed eachtime the car was driven.[2] Modern immobiliser systems are automatic, meaningthe owner does not have to remember to activate it.   Immobilisers have been mandatory in all newcars sold in Germany since 1 January 1998, in the United Kingdom since 1October 1998, in Finland since 1998, in Australia since 2001 and in Canadasince 2007. Early models used a static code in the ignition key (or key fob)which was recognised by an RFID loop around the lock barrel and checked against