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Electronic anti-theft device

An electronic and circuit technology, which is applied in the field of wireless coding electronic remote control devices, can solve the problems of car owners such as economic losses and safety hazards, and achieve the effect of low difficulty in production, low cost and high difficulty in cracking

Inactive Publication Date: 2009-01-14
杨贵华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is common throughout the country, causing serious harm to social stability and causing serious economic losses to car owners.

Method used

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Embodiment Construction

[0010] exist figure 1 Among them, the antenna (ANT) is connected with the RF wireless receiving module (IC) to form a signal receiving, amplifying, and demodulating circuit. IC5 (4 inverters) constitutes a signal amplification and isolation circuit. IC1, Q1, Q2, R1, R2, R3, R5, RV1, C1, C2 are connected to form a delay circuit. IC3, IC4, Q3, D6, D7, R20, R21, R22 are connected to form a pulse counting circuit. ZP1, U2, R18, U4, IC7, D9 are connected to form a wired input circuit. IC2, R12, R13, R14, R15, R16, R17, D2, D3, D4, D5, TP521 (optocoupler) are connected to form a decoding and signal output circuit U (storage battery), C3, C4, C5, R7, R8 , R9, R10, R11, RV2, IC6, Q4, J1, connected to form a power supply and automatic charging circuit. The signal output by the RF wireless module is divided into two routes, one route is directly connected to the signal input terminal of the decoding chip through pins 1, 2, 3 and 4 of IC5; the other route is connected to R1 and the c...

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Abstract

The invention relates to an electronic anti-theft device, in particular to a novel electronic remote control device which is specially and elaborately designed for the existing high-tech electronic decoder deciphering technique. The electronic remote control device can immediately perform the anti-theft protection (namely the immediate stopping of receiving radio signals) after instantaneously identifying the operation mode (namely the normal operation and the illegal operation). An instantaneous pulse identifying and limiting circuit composed of a counter, a trigger, a time delay circuit and a phase inverter is integrated in a receiver which can instantaneously identify the operating state of the remote control, thereby protecting the equipment in time. The security by adopting an 8-bit encoding / decoding chip is identical with that of a 32-bit encoding / decoding chip at present. The illegal addressing to the 8-bit chipset for a round requires 54 minutes. As a matter of fact, the 32-bit encoding / decoding chipset is adopted in practical application, and the illegal addressing requires 6 years. The anti-theft effect is obviously highly effective.

Description

Technical field: [0001] The invention relates to a wireless coding electronic remote control device. Especially electronic remote control locks that require a high degree of anti-theft. Background technique: [0002] At present, the structure of the known wireless coding type electronic remote control lock is: the remote control transmitter is made up of elements such as battery, coding chip, high-frequency transmitting module, circuit board. The remote control receiver is mainly composed of high-frequency receiving module, signal amplifier, decoding chip, trigger circuit and control circuit, electric control lock and other components. When the corresponding button on the transmitter is pressed, the encoding chip outputs a set of corresponding binary codes, and the encoded signal is transmitted into the air by the high-frequency transmitting module. At this time, when the high-frequency receiving module receives the high-frequency signal of the same frequency band, it is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B49/00G08C17/00G08C19/36
Inventor 杨贵华
Owner 杨贵华