Glass breaking alarm reminding device

Abstract

The invention discloses a glass breaking alarm reminding device, and relates to the field of vehicle anti-theft alarm. The device comprises a resistance wire, a signal acquisition module, a controller, an alarm device and a server, wherein the resistance wire is used for being arranged on a surface of glass and includes two leading-out ends; the signal acquisition module includes a detection circuit and a conversion circuit; the detection circuit is configured to enable one leading-out end of the resistance wire to be grounded and enable the other leading-out end of the resistance wire to be connected with a detection power supply through a pull-up resistor, and the conversion circuit is used for converting a high-level signal or a low-level signal output by the detection circuit and outputting a glass breaking signal when the detection circuit outputs the high-level signal; the controller is connected with the conversion circuit and is used for receiving and sending the glass breakingsignal; the alarm device is connected with the conversion circuit and is used for giving an alarm when receiving the glass breaking signal; and the server is wirelessly connected with the controllerand is used for outputting reminding information when receiving the glass breaking signal. In the invention, a sensor does not need to be arranged on glass, and a possibility of false alarm can be reduced.

Description

technical field [0001] The invention relates to the field of vehicle anti-theft alarms, in particular to a glass breakage alarm reminder device. Background technique [0002] All over the country, there have been reports of vehicle windows being smashed and property stolen from the vehicle. Traditional vehicle alarms will only call the police when the car opens the door illegally or vibrates violently. And when the window glass is smashed, the alarm will not be called. Like this just can not cause surrounding attention when the thief commits a crime, can't deter the thief. The vehicle will not notify the owner independently, and the owner will not be informed in time, which will bring difficulties to the detection of the case. [0003] In order to solve the above problems, in the prior art, vibration and sound sensors are usually pasted or adsorbed on the glass surface, and the vibration and sound sensors are used to judge whether the window glass is broken, but setting t...

AI Technical Summary

Problems solved by technology

However, this method still uses voice-activated alarms for judgment and alarm, and there is a possibility of false alarms.

[0006] In addition, there is another way to paste the sensor on the outside of the plastic suction cup, and the plastic suction cup is attached to the car glass. The piezoelectric element of the sensor converts the glass vibration wave into a voltage signal, and then the voltage signal corresponding to the glass vibration intensity is reached. Set the threshold to determine whether the glass is broken. It uses vibration to detect glass breakage and there is a possibility of false alarms. Moreover, the sensor is adsorbed on the glass surface with a suction cup, which affects the appearance of the vehicle.

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