Fuel tank antitheft system

Abstract

The invention discloses a fuel tank antitheft system, comprising a signal detection circuit, a first controller, a wireless communication transceiving module and a display monitor terminal; the signal detection circuit comprises four infrared sensor modules, the output end of the first infrared sensor module, the output end of the second infrared sensor module, the output end of the third infrared sensor module and the output end of the fourth infrared sensor module are connected respectively with the first controller, the first controller is connected with the wireless communication transceiving module, the first infrared sensor module, the second infrared sensor module and the third infrared sensor module are mounted on a same plane, the fourth infrared sensor module is arranged perpendicular to the plane, a probe of the first infrared sensor module, a probe of the second infrared sensor module and a probe of the third infrared sensor module provide transmitting axes that are mutually 120 degrees angled, and a safety area threshold and an alarm area threshold are arranged in the first controller; the fuel tank antitheft system has the advantages of low rate of false alarm, convenience of operation and high safety.

Description

technical field [0001] The invention relates to an anti-theft system, in particular to an anti-theft system for a fuel tank. Background technique [0002] Due to the large volume of fuel tanks of medium-sized freight vehicles and large freight vehicles, fuel oil theft often occurs, which brings great losses to car owners. In order to prevent fuel oil from being stolen, many medium-sized freight vehicles and large freight vehicles are usually equipped with fuel tank anti-theft systems. Existing oil tank anti-theft system usually comprises signal detection circuit, controller and alarm, and signal detection circuit is connected with controller, and controller is connected with alarm; Signal detection circuit adopts an infrared sensor module or a microwave sensor module to realize usually, An infrared sensor is used as a probe in the infrared sensor module, and a microwave sensor is used as a probe in the microwave sensor module. When in use, the infrared sensor or microwave ...

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Problems solved by technology

[0003] However, the existing oil tank anti-theft system has the following problems: 1. Even if passers-by or animals enter the detection area, the infrared sensor or microwave sensor will be triggered, and the controller will control the alarm to send an alarm, and the false alarm rate is high; 2. The opening and closing of the controller of the fuel tank anti-theft system needs to be operated manually. Even if it is equipped with a remote control, it must be operated at a short distance. Therefore, for the owner of the cab, the remote control has little effect and is inconvenient to operate; 3. Due to the relationship between the installation position of the infrared sensor or microwave sensor, there will inevitably be detection blind spots, and the safety is not high

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