Vehicle anti-theft detection method and vehicle anti-theft detection device

Abstract

The invention discloses a vehicle anti-theft detection method and a vehicle anti-theft detection device. The vehicle anti-theft detection method includes the steps of 1), detecting signal output of a vibrating sensor and an acceleration sensor at any time through a processor; 2), amplifying signals through an amplification circuit and filtering the same through a filter circuit, and transmitting the signals to the processor for comparison; 3), directly outputting alarm signals when the signals exceed a preset threshold value, or otherwise returning to the step 1); 4), or when duration of the signals exceeds 3 seconds, frequency of the signals is within an abnormal frequency range and amplitude of the signals is higher than the preset threshold value, outputting the alarm signals, or otherwise not outputting the alarm signals. The vehicle anti-theft detection method has the advantages that vehicle states can be comprehensively detected through the vibrating sensor and the acceleration sensor, and the defect that an existing vibrating sensor is prone to acoustic interference and false alarms is avoided.

Description

technical field [0001] The invention belongs to the technical field of vehicle anti-theft methods and equipment, and in particular relates to a method and device for vehicle anti-theft detection. Background technique [0002] With the rapid development of economy and society, automobiles have become a standing means of transportation for human production and life. With the increase in the number of vehicles, the number of stolen vehicles has also increased year by year. Worrying about vehicle theft has become a difficult problem for every car user. People have put forward higher requirements for vehicle anti-theft performance. [0003] The vehicle anti-theft alarm system of the alarm equipment installed and used in the later stage of the vehicle is triggered by a vibration sensor, which is easily disturbed by sound waves and alarms. Vehicles passing by, setting off fireworks and firecrackers, large-scale collective activities, etc. may trigger the alarm, and the false alarm...

AI Technical Summary

Problems solved by technology

[0003] The vehicle anti-theft alarm system of the alarm equipment installed and used in the later stage of the vehicle is triggered by a vibration sensor, which is easily disturbed by sound waves and alarms. Vehicles passing by, setting off fireworks and firecrackers, large-scale collective activities, etc. may trigger the alarm, and the false alarm rate is high

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