1. Team Tesla

2.  Provide monitoring of employees with cognitive disabilities  Sense changes in position and stress levels  Easy to deploy and maintain  Non-intrusive devices  Report conditions to supervisors

3. Internet Extended Wireless Sensor Base Station Power Transmitter GUI Wireless Sensor

4.  Low User Maintenance  Wireless Power Reception  2-3 Meter Functional Range  Intelligent Power Management System  Multiple Sensor Capability  Wireless Transmission of Sensor Data  Graphical Data Display  Small size

5. Reception & Rectification Power Management Pulse Generation Storage MSP430 ANT Transceiver Sensor Array

6.  Amplifier fed by a sweeper  Possibly a dedicated oscillator to feed it  Transmit at most 1 Watt  Continuous and low power - source does not need controlling  Ambient Power can also be collected

7.  Specific Frequency Receiver Antenna  Microstrip patch rectenna  Dual polarized  Ground on back, useful for mounting 3.8cm

8.  Maximize power transfer between antenna and storage system  Thin film Batteries  Boost converter  Feedback loop to maximize power transfer  Power dependent sleep and wake Modes

9.  1W Transmitter at 2m range, 8dB gain  12uW/cm 2 incident power  9cm 2 area of receiving antenna  108uW power  Antenna Efficiency minimum at 20%  Power System Efficiency of 60%  Efficiency of Battery Charging System 90%

10.  This gives us 11.6uW to work with  System Running at 3.3V  Sleep power: 3.63 uW  Rest of power available determines transmission rate

11. Current Time ->

12.  MSP430F26XX  Active Mode: 365 uA at 1MHz  Standby Mode:.5 uA  Off Mode:.1uA for RAM retention  A/D for sensors  Brownout detector  Several Timers  Several Low Power Modes

13.  Nordic nRF24AP2  17mA max draw  Multiple channels for many sensors  2.4-2.5 GHz ISM band  ANT Protocol  Up to 1Mbps

14. PASSIVE SENSORS  Temperature  Skin conductivity  Pressure ALERT SENSORS  Shock  Accelerometer  Panic button

16.  Interface with a USB ANT receiver  Ant Protocol  Used in low power personal area networks  “Data Processing”  Pretty Pictures

17. RISK  Inexperience with the parts  Power system potentially complicated  Time  Module explodes MITIGATION  Scheduled lots of up front learning/testing time  Have multiple designs with different levels of complexity.  Hopefully stick to our plan  Building multiple modules at once

18.  Web Based GUI  Increased Number of Sensors Per Module  Sensor Module Network  2 Way Communication Between Module and Base Station

19.  Parts per 1 board  Processor ▪ $5  Sensor ▪ $5  Transceiver ▪ $4  USB Receiver ▪ $35  PCB ▪ $70  Antenna Substrate ▪ $150  Misc ▪ $75  Overestimate ▪ ~$350  Learning Times  Processor ▪ 1.5 Weeks  Sensor ▪ 3 days  Transmitter ▪ 2 days  Receiver/GUI ▪ 1.5-2 weeks  Antenna ▪ 2 week  Power System Options ▪ 2 weeks

20. NamesPower Xmit AntennaPower managem ent ProcessorSensorsData Xmit Computer Systems BrianXXXXX SarahXXXX LeoXXXX DamianXXXXX

22.  Names (in presentation order):  Damian Manda  Leo Ascarrunz  Brian Fairburn  Sarah McNamara