1. Ubiquiplex The Scrap Devices Company Engineering: Joshua Doubleday Maksim Noy Jing Su Daniel Tran Steve Zhang Managed By: Daniel Howe Business: Eddie Chung Linda Pruitt George Donegan Matt Boos

2. Project Overview  Goal Create an infrastructure environment where the user's data is device independent and devices are automatically configured to the user using the device.  Principal elements  Identification  Internet Connection  Applications  Profile Server  Platforms:  Video Wall  Compaq iPaq PDA  PalmOS PDA (maybe)  Business Plan

3. Identification  Each user needs an identification on the system  Method should be unobtrusive  Options and Ideas  Active RF tags  IRda Rings  Passive RF tags  Touch based communication  Commercial products: GPS, Xerox ParcTAB, AT&T Ultrasonic Bats, MS WaveLAN, SmartFloor, computer vision, cellular phone based solutions

4. SpotOn  Developed and supported by Jeff Hightower  Research project on ad-hoc 3D position sensing  Initial study based on Air ID from RFIDeas  Adjustable long range active id badge reader and software solution for desktop computers  Features hands-free login and locking based on proximity and read/write memory in the badge  Serial port interface on base station

5. …SpotOn  Custom Hardware  RFMonolithics TR1000 Radio Transceiver  10-bit A/D Converter for Signal Strength  Dragonball EZ (68k) microprocessor  2 Mb Flash, 2 Mb Ram  Constant 3.3V power supply  Cost $30 -- $40  Connectionless Irda packet like communications over RF, Ir, and serial

6. …SpotOn  Op-code oriented data:  EchoReq, EchoRpl, Forward, Config, RSSI, etc.  RSSI – Received Signal Strength Information  The interesting packet op-code  Just a ping, with signal strength recorded and attached  May also contain pings from other pairs of transceivers on the network

7. Identification System  Users – wear a spoton radio tag  Scrap Devices – wear a spoton radio tag  Register their unique spoton id and ip address with the server  Server – has a spoton radio tag connected via serial port  Listens for scrap devices to register over tcp  Listens to spoton radio data  RSSI packets are placed into a databank history  Databank is compared with registered device ids  Ids with other devices in range are notified

8. Identification Server  Registration of a Scrap Device  XML like  0005 192.168.0.111 4400 4  Notification to Scrap Device  Not yet clearly specified  0014  all  MFC -- socket programming  Code supplied by Jeff Hightower  Packet handling, serialization, databank manipulation

9. Status  Scrap devices (simulated) can register with server  Server can almost establish a connection with registered devices  Need a proximity algorithm and test  First user with a RSSI over a threshold for a registered device stays the user until they fall under the threshold