Kamis, 19 Mei 2011

Definition Of Anti Theft System

Today, i will introduce to you about an anti theft system. An anti theft system is any device or method used to prevent or deter the unauthorized appropriation of items considered valuable. Theft is one of the most common and oldest criminal behaviours in the world. 


Where the ownership of a physical possession can be altered without the rightful owner's consent, theft prevention has been introduced to assert the ownership whenever the rightful owner is physically absent. Anti-theft systems have been around since individuals began stealing other people's property and have evolved accordingly to thwart increasingly complex methods of theft. 

From the invention of the first lock and key to the introduction of RFID tags and biometric identification, anti-theft systems have evolved to match the introduction of new inventions to society and the resulting theft of them by others. In the case of vehicle theft, the best deterrent to theft is in the installation of an approved vehicle anti theft immobilizer. Many vehicles have OEM (factory installed) units and afford protection through the ignition system. 

OEM immobilizers function through the ECM/PCM (computer) under the hood of the vehicle. In general terms, the RFID tag attached to the key must be read by the ECM in order to allow ignition to occur. Unfortunately, organized crime is able to bypass these systems and steal any vehicle at will. An approved immobilizer uses a 3 circuit isolation system which thwarts even the most experienced thief.