mechanical lock Mechanical locks are the most common application and the earliest car anti-theft locks. Now they are rarely used alone. They are mainly used in combination with electronic and chip type. The steering wheel lock is used on the old mulberry. Mechanical locks mainly play a role in limiting the operation of the vehicle, and have limited help for theft prevention. 
It is difficult to resist. In general, a car thief can open the steering wheel lock in tens of seconds. So old mulberry is the most easily stolen car. Electronic anti-theft lock system The electronic anti-theft lock is the most widely installed anti-theft lock at present. The main functions of the one-way electronic anti-theft system are: the door opening and closing of the car, vibration or illegal opening of the door alarm, etc., and some brand products have been added according to the needs of customers. Some functions: use an electronic remote control to complete the engine start, flameout, and so on. The fatal injury of the electronic anti-theft system lies in its electronic password and remote operation mode. When the owner uses the remote control to open and close the door, the car thief hiding in the vicinity can use the receiver or scanner to steal radio waves or infrared rays from the remote control. After decoding, you can turn on the car's anti-theft system. Chip type digital anti-theft lock The chip-type digital anti-theft lock is now a manufacturer-level anti-theft measure. Most cars use this anti-theft method as the original anti-theft device. The chip-type digital anti-theft device can lock the car's motor, circuit and oil circuit, and can't start the car without the chip key. The digitized password has a very low re-encoding rate, and the password key can be used to contact the lock on the car to unlock the lock, thus eliminating the drawback of being scanned. At present, most of the new domestic cars have been equipped with the original chip anti-theft system. At present, the chip-type anti-theft has been developed to the fourth generation. The latest generation of the fourth-generation electronic anti-theft chip has a special diagnostic function, that is, the authorized person can obtain the history information of the anti-theft system when reading the key confidential information. The number of authorized spare keys, time stamps, and other background information in the system form an integral part of the transceiver's security features. The fourth generation of electronic anti-theft system
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