Signal encryption type safety remote control lock for automobiles

Abstract

The invention relates to a signal encryption type safety remote control lock for automobiles, which comprises a radio transmitting device, and also comprises an anti-jamming circuit, wherein the anti-jamming circuit is connected with the radio transmitting device, and the anti-jamming circuit comprises a signal amplifier, a rectifier, a filter and amplifier circuit, a signal encryption conversioncircuit, a filter amplifying circuit and a differential output circuit; the signal amplifier is connected with the rectifier, and the rectifier is connected with the filter and amplifier circuit; thefilter and amplifier circuit is connected with the signal encryption conversion circuit, and the signal encryption conversion circuit is connected with the filter amplifying circuit; and the filter amplifying circuit is connected with the differential output circuit. The invention encrypts and modulates signals, reduces the acquisition probability of an electronic jamming device for control information, and reduces signal shielding threat caused by intermediate frequency signals by improving transmission power; therefore, by improving the transmission power and carrying out the encryption conversion for transmission modes, the impact caused by the existing electronic jamming device can be effectively resisted.

Description

technical field [0001] The invention relates to a car key, more specifically, to a frequency-mixing anti-jamming type car safety remote control lock. Background technique [0002] The rapid development of the automobile industry has brought a lot of convenience and comfort to people's travel, allowing people to fully enjoy the achievements of modern technology. Although the superiority of the car is unquestionable, the safety and security of the car cannot be ignored. Many private cars now use remote-controlled electronic locks. How safe is this kind of remote-controlled electronic lock? After some investigation and research, we found that its safety is very worrying: in the face of some high-power jammers, this kind of remote electronic lock often "false lock", or even lose the function of locking the car, such a remote control lock Bring great hidden danger to the safety of automobile. However, in the face of many "electronic jammers" on the market, they are still helpl...

AI Technical Summary

Problems solved by technology

[0006] China Invention Patent Application No. 200410093474.1 discloses a wireless remote control key for safe and anti-theft cars. It adopts the working principle of password unlocking, which can guarantee the anti-theft problem of the car after it is successfully locked to a certain extent, but still does not solve the problem of signal interference by the remote control key.

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