Truck fuel tank anti-theft lock system

Abstract

The invention discloses a truck fuel tank anti-theft lock system which comprises a single chip microcomputer, a detection circuit, an alarm output circuit, a setting circuit, a test circuit and a power supply circuit. The power supply circuit is used for providing the stable working voltage for the system; the detection circuit is used for periodically reading the system test value, the value is compared with a set value stored in the system, according to the comparison result, whether the system is abnormal or not is judged, three sets of micro switches are arranged in the detection circuit,and each set of micro switches is connected with the single chip microcomputer through an optocoupler circuit; the setting circuit is used for selecting one or more of the three sets of micro switchesin the detection circuit for periodically reading the test value; the alarm output circuit is connected with the single chip microcomputer and comprises an indicating lamp and a sound alarm, when thesystem is normal, the indicating lamp shows green, when the system is abnormal, the indicating lamp shows red, and meanwhile the sound alarm issues the alarm sound; and the test circuit is used for detecting the alarm output circuit.

Description

technical field [0001] The invention mainly relates to the technical field of fuel tank anti-theft locks, in particular to an anti-theft lock system for a fuel tank of a truck. Background technique [0002] With the continuous improvement of my country's economic level, the automobile transportation industry is also in a stage of rapid development. Many long-distance bus drivers stop to rest in the cab during transportation, or when they have meals in nearby restaurants, they often encounter the situation that the fuel in the fuel tank of the car is stolen, which has caused huge economic losses to the car owners. Although there are already many anti-theft devices for automobile fuel tanks in use, most of them are complicated to use, have little alarm effect, are easy to be cracked, and often have false alarms or no alarms, making it inconvenient to use , the expected alarm effect cannot be achieved. Contents of the invention [0003] Aiming at the deficiencies in the pri...

AI Technical Summary

Problems solved by technology

Many long-distance bus drivers stop to rest in the cab during transportation, or when they eat in nearby restaurants, they often encounter the fuel tank of the car being stolen, causing huge economic losses to the owners.

Although there are already many anti-theft devices for automobile fuel tanks in use, most of them are complicated to use, have little alarm effect, are easy to be cracked, and often have false alarms or non-reports, making it inconvenient to use , can not achieve the expected alarm effect

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