Automobile anti-theft device based on CAN bus application

Abstract

The invention discloses an automobile anti-theft device based on CAN bus application. The automobile anti-theft device comprises a power supply, a center control unit, an ultrasonic sensor, a fingerprint recognition module, an image recognition module and an alarm device. The center control unit has CAN communication protocols uniform with those of an automobile and is completely matched with an automobile multicircuit control unit, and the network command format of the center control unit is as same as network communication protocols of the automobile. The ultrasonic sensor, the fingerprint recognition module, the image recognition module and the alarm device are connected with the center control module through wires. The center control module is connected with a CAN-BUS so that the center control module can be directly connected into an automobile system through the CAN-BUS, theft is prevented through the detection and control function of a system, a user does not need to set more circuits by himself or herself to set extra anti-theft points any more, circuits are simplified, convenience is brought to usage, and safety is greatly improved. Furthermore, through optimization design of external detection devices, the automobile anti-theft device has dual guarantees and is more user-friendly in design.

Description

technical field [0001] The invention relates to the technology in the field of automobile anti-theft devices, in particular to an automobile anti-theft device based on a CAN bus application. Background technique [0002] Cars are an indispensable means of transportation for modern people's life and work. With the continuous improvement of people's production and living standards, the amount of cars used is also increasing, and the incidents of various car thefts and robberies are also increasing. It has brought great harm to people's life and property safety and social stability. In response to these problems, various mechanical or electronic car anti-theft devices have been introduced on the market. Mechanical anti-theft devices mainly lock clutches, brakes, accelerators or steering wheels, and gears to achieve anti-theft purposes, but they can only prevent theft. The electronic anti-theft device uses locking ignition or starting to achieve the purpose of anti-theft. It ca...

AI Technical Summary

Problems solved by technology

The traditional electronic anti-theft device needs to be specially equipped with a detection element for each anti-theft point, and connect a line to the anti-theft device host for each detection element. For ordinary cars, 12 or more wirings are usually required, so When installing a car anti-theft device, it is not only time-consuming and labor-intensive, but also too many lines are easily damaged, which will bring safety hazards

In addition, in the existing car anti-theft system, not only will it prevent outsiders but also sense the car owner, which will cause some troubles to the car owner, and relying on ultrasonic sensors alone for identification cannot fully meet the needs of anti-theft

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