2.  Justin Project › Justin Moninger  Car Accident  Different Technologies › 300Mhz › 433mhz History

3.  Transmitter/Receiver › 433Mhz › Accelerometer › Comparator › Dip Switches Version 1.0

4.  Goals Met › No User Input › Range › $$$ - Cheap › Weather Proof Accomplishments

5.  Problems › Excessive Power Use  Charging Circuit › Cumbersome Enclosure  Project Goals for this Year › Redesign to use less power › Design a smaller transmitter › Incorporate directional signal propagation Issues and Problems

6.  Budget from CSU › $50 dollars per individual  Total 100 dollars  (2 Students are from independent study) ‏ Budget

7.  Sources › Monetary › Transceivers Donations

8.  Trusts and Foundations › Kroh Charitable Trust  Loveland, CO – Focused on helping Community › Anheuser Busch  Justin Moniger had a close friend working here › Anshutz Foundation  A foundation focused on helping society › Craig H Nielson Foundation  Similar to Anshutz Monetary Donations

9.  Panasonic › Zibee Modem P4555  Linear Technologies › RS2802 Tranceiver  Vishay › Vishay RFW3M Transceiver Donations

10.  Panasonic (Zigbee Modem) ‏  High level communication protocols (WPANs) ‏  16 channels, size (20 digital I/O lines), Power (120mW) ‏  Vishay (RFW3M) ‏  Power (129mW), frequency agility (3 operating channels) ‏  A three wire serial bus for programming (data lost) ‏  Vishay (RFW122) ‏  Power = 22mA×3.3V = 72.6 mW (Transmitting mode) ‏  Amplitude Shift Keying (ASK) ‏  3 line serial digital data I/O line interface Transceivers

11. Chair Circuit Test Setup Schematic

12.  Needed to limit current consumption › Changed to CMOS 555 timer circuits › Used Linear Voltage Regulator › Used CMOS inverter  Changed to Vishay Transceiver › Much less power consumption › 11 X 15.9 mm › Transmit and Receive for future handshake applications. Chair Circuit Specifications

13.  Needed Characteristics › Directional › Easy to make › Work with Vishay  Solution › Dipole Antenna Antenna Design http://www.trevormarshall.com/byte_articles/byte1.htmhttp://en.wikipedia.org/wiki/Dipole_antenna

14.  Future plans for Door Circuit › Need to filter out transmitted signal  Vishay outputs noise when not receiving signal.  Need to filter out unwanted signal. › Use Vishay's abilities to do handshake  Future plans for Chair Circuit › Make circuit rechargeable. › Put circuit on PCB Future Circuit Plans

15.  Advisor: Olivera Notaros  Donations: › Ashley Waddell › Patty Meeke of Panasonic › Leanne Bernstein of Vishay › Christopher Gobak of Linear Technologies › Guy Wagner for support › Pat and Terry for continued support Thanks Too