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. 2023 Dec 24;24(1):97.
doi: 10.3390/s24010097.

Development of a Contact Glass-Break Detector for the Highest Security Level

Vaclav Mach  1 , Ales Mizera  1 , Pavel Stoklasek  1 , Michaela Karhankova  1 , Milan Adamek  1 , Martin Bednarik  2
Affiliations

Development of a Contact Glass-Break Detector for the Highest Security Level

Vaclav Mach et al. Sensors (Basel). .

Abstract

The main object of this research was to develop a security system to evaluate the intrusion into an object through a glass pane. More specifically, this study deals with sensing and evaluating signals from a contact glass-break detector, which is part of an intruder alarm system. Each alarm detector in an alarm system must accomplish certain security level requirements that strictly describe the requirements for the area of use and the detector's reliability. To date, no contact glass-break detector has been developed and fully tested to meet the stringent requirements of the highest security level. A contact glass-break detector was developed whose main part is an accelerometer that transmits signals from the glass pane. These signals were evaluated according to the developed methodology. It was verified that the proposed system can distinguish at the highest security level between false alarms and situations where the building has been intruded.

Keywords: accelerometer; alarm system; detector; glass break; surveillance.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Position of the MPU-6050 on the glass pane (dimensions are in millimeters).
Figure 2
Figure 2
The connection between the MPU-6050 and Arduino Nano.
Figure 3
Figure 3
Testing Scenarios: (a) hole drilling with a diamond hole saw (HD), (b) glass cutting (GC), (c) immunity to hard objects hitting the glass (IHOHG).
Figure 4
Figure 4
Visualization of the HD, GC, and IHOHG scenarios on the glass pane.
Figure 5
Figure 5
Graphical representation of the threshold values for the final evaluation.
Figure 6
Figure 6
Flowchart of the final program.
Figure 7
Figure 7
Graphical representation of the verification experiment.
See this image and copyright information in PMC

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