1. Glass Break Detection System Midterm Presentation October 7, 2010

2. Dennis Narcisse Synapse Programming and troubleshooting Matthew Marsh Hardware Design, Signal Processing Christian East Synapse Wireless Comm. Mark Lynn Hardware Implementation, Signal Processing Dr. Winton Advisor

3.  Introduction  Problem Statement  Solution  Constraints  Technical  Practical  Hardware Diagram  Technical Tradeoffs  Progress  Timeline

4.  Glass Break Detection System (GBDS) is an alarm system that detects the frequency of breaking glass  Consist of a central unit and multiple detection units  System communicates wirelessly among all units

5.  Current glass break alarms operate:  as stand alone units  hardwired to a central unit  High cost for complicated designs

6.  Use low power wireless technology  Central unit communicates to all detection units  Simplified design to lower overall cost

7. Central Unit Detection Unit

8. NameDescription RangeThe detection unit must detect glass breaking up to 25 feet. AccuracyThe detection unit must detect the noise frequency emitted by the breaking of glass to prevent false alarms from normal household sounds. Supply VoltageThe detection units must be battery powered. The central unit must be wall powered. Transmission DistanceCentral and detection units must be able to wirelessly communicate within a 33 to 246-ft range. DisplayThe central unit must have a display screen that is easily read.

9.  Economic  The GDBS must be less than $200

10.  Manufacturability  The GBDS must be simple in its design

11. Sensing Block MCU Wireless Comm. DisplayMCU Wireless Comm.

12. MicrophoneOp amp MCU

13.  Wireless  Zigbee  Synapse  Texas Instruments  Signal Processing  Hardware  Software

14.  XBee Pro  Data Rate: 250 kbps  Indoor Range: 300 ft  Frequency Band: 2.4 GHz

15.  RF100PC6  Data Rate: 250 kbps  Indoor Range: 1000 ft  Frequency Band: 2.4 GHz

16.  CC2500  Data Rate: 250 kbps  Indoor Range: 260 ft  Frequency Band: 2.4 GHz

17. ManufacturerModelResourcesRangePriceChoice ZigbeeXBee ProNo300’$32 SynapseRF100PC6Yes1000’$35 TICC2500No240’$5

18.  Hardware  Op amp  Software  Mathematically

19.  Op amp  Adsf  Asdf  asdf

20.  Mathematically  Adsf  Adsfa  asdfas

21. PartSpeedAccuracyDifficultyChoice OpampFasterLess MathematicallySlowerMore

22.  Central and detection unit’s hardware completed

23.  Beginning to program microprocessor, wireless network, and display

24. AugustSeptemberOctoberNovember Research Hardware Software Testing