TIDM-GBD-ROBUST

A Robust Glass-Breakage Detector Reference Design

TIDM-GBD-ROBUST

Design files

Overview

This reference design describes a simple as well as a robust glass breakage detector designs using the MSP430F2274 and was developed to operate at low power, allowing long battery life. The simple design algorithm is based on the spectral analysis of a typical glass breakage signal by analyzing signal characteristics such as peak content, number of zero crossings, and frequency composition. A glass breakage alert is indicated by an onboard buzzer and an LED. The robust glass-breakage detector includes an extra thud detection stage before actual glass-breakage detection to avoid false triggering of the glass-breakage detector for sound events with signal spectrum similar to a glass-break sound.

Features
  • Fully integrated, single-chip glass breakage detector
  • As low as 50µA average current consumption during monitoring operation
  • Implements high power output horn driver stage capable of up to 106dB
  • Addition of thud detection for better false trigger rejection (Robust only) 
  • Integrated Op-amps provide on-the-fly configurable filtering stages for signal detection and processing
  • This reference design is tested and includes firmware, hardware design files & documentation
  • Hardware based on this design can also be ordered from Olimex.com

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLAR076.PDF (298 K)

Detailed schematic diagram for design layout and components

SLAR077.PDF (49 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

SLAC616.ZIP (690 K)

Design file that contains information on physical board layer of design PCB

SLAC604.ZIP (100 K)

Design file that contains information on physical board layer of design PCB

SLAC605.PDF (484 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS6104028-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430F227416 MHz MCU with 32KB Flash, 1KB SRAM, 10-bit ADC, 2 OpAmp, I2C/SPI/UART

Data sheet document-pdfAcrobat PDF

Start development

Software

Application software & framework

A Robust Glass-Breakage Detector Code – SLAC599.ZIP (24 K)

Technical documentation

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Type Title Date
Application note A Simple Glass-Breakage Detector Using an MSP430 MCU (Rev. A) Nov. 09, 2018
Application note A Robust Glass-Breakage Detector Using the MSP430 Feb. 05, 2008

Related design resources

Reference designs

REFERENCE DESIGN
TIDM-GBD-SIMPLE A Simple Glass-Breakage Detector Reference Design

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