Glass Break Detectors
– A glass break detector is a sensor that detects shattered or broken glass.
– These detectors are commonly used near glass doors or storefront windows.
– They are widely used in electronic burglar-alarm systems.
– The detection process involves a microphone that picks up noises and vibrations from the glass.
– The vibrations are analyzed by detector circuitry to determine if they exceed a certain threshold.
Detection Process
– The microphone in a glass break detector picks up noises and vibrations from the glass.
– Simple detectors use narrowband microphones tuned to frequencies typical of glass shattering.
– More complex designs analytically compare the sound to one or more glass-break profiles.
– Signal transforms like DCT and FFT are used to analyze the vibrations.
– Digitally sophisticated detectors react if both the amplitude threshold and similarity threshold are breached.
Wireless Glass-Break Detectors
– Advances in technology have led to the use of wireless glass-break detectors.
– These detectors operate without the need for physical connections.
– They use wireless communication to transmit signals to the alarm system.
– Wireless detectors offer flexibility in installation and can be placed in various locations.
– They provide reliable and effective glass break detection capabilities.
Related Topics
– Chubb Locks and Yale are companies associated with glass break detection technology.
– Burglar alarms often incorporate glass break detectors for enhanced security.
– Intrusion Detection Systems may include glass break detection, as discussed by Robert Barnard.
– Glass engineering and science play a role in the development of glass break detectors.
References
– Robert Barnard’s book ‘Intrusion Detection Systems’ provides information on glass break detectors.
– Security.org’s article ‘How Does a Glass-Break Detector Work?’ explains the working principle of these detectors.
– The Daily Secure discusses how glass break sensors work.
– The Wikipedia page on glass break detectors provides additional information.
– The electronics-related article on glass break detectors is a stub that can be expanded.Sources: https://en.wikipedia.org/wiki/Glass_break_detector
