1. Watt Watch Hassan Alabudib Yirui Huang Peng Chen Kamal Sabi Marisol Lozano Roman

2. Overview Main objectives System’s general description Project Features Possible extensions System’s block diagram Implementation of different subsystems and components. Division of Labor Schedule Risks Budget Questions

3. Project Overview If you cannot measure it, you cannot improve it.

4. Project Overview Measure the power and energy consumption of an electrical device Transmit the data to a host (computer)

5. System’s general description Unit Electrical Device Host Communication scheme ACAC

6. Project Features On the Device: Real, reactive, and apparent power LCD Display Wireless Connection Device Control Data Storage

7. Project Features On the Host ( Computer ) Data Display Remote Control

8. Time to make it smarter Device Network Remote access (Internet) Autonomous turnoff Max Power protection Surge protector

9. Block Diagram Switch Microcontroller LCD SDRAM Wireless RS232 FPGA ? Power chip Signal Sensor Power Supply Computer Terminal

10. Microcontroller TI MSP430 LCD controller USART I/O ports

11. Power/ Energy Measurement Chip –Some chips available CIRRUS LOGIC: CS5463 STMicroelectronics: STPM01 – Functions of the chip Active, reactive, apparent power and RMS values A/D converter Less than 0.1% error

12. Power/Energy IC Max measurements Isolation Calibration Temperature Sensor Bi-directional Serial interface Differentiated inputs

13. Memory and Display LCD Display –Interactive –Character and graphical display –Debug SDRAM –Cheap and large capacity –SD card reader

14. Wireless Module and Serial Communication –ZigBee a range of 300ft 2.4 GHz built-in antenna 250kbps Max data rate –The unit will interface with the computer via a USB/ RS 232. Backup communication Continuously transmit data periodically

15. Power Management Power Supply Load 120 Vac Power Measur ement chip 5V 3.3V3.3V LCD Micro controller Zigbee module 3.3V Electrical Isolation Transformer

16. Host(Computer) Develop GUI using LabView Start up window (front panel) Data collection window Configuration window Command window Communicate with hardware devices Start Configurat ion DataCommand

17. Data Analysis Data analysis will be done using Labview programs –Real time plot of Power vs. time –Plot over a given period of time (day, week, month) –Spreadsheet

18. Timeline/Schedule

19. CDR Assemble Power Measurement Module Program Microcontroller to send/receive data using RS232. Program Zigbee module Preliminary Design of GUI Labview visual

20. Milestone 1 Program LabView to command Hardware device Data processing Testing of preliminary design.

21. Milestone 2 Integrate hardware and software Design, schematic and PCB layout Order main PCB and components Test and Debug Final Circuit

22. Division of Labor NameHassan Alabudib Kamal Sabi Marisol Lozano Peng ChenYirui Huang Power Measurement xxx Power Supplyxxx LCD Programmingxxx Wireless Communication xxx RS 232xx MSP430xxx Software Interfacexxx Testingxxxxx Documentationxxxxx

23. Risks and Contingency Plan Safety :AC Line –Exercise proper safety precautions at all times –Electrical Isolation Unfamiliar with Power and Energy Measurement Chip, Microcontroller, Zigbee, LabView. –Use available resources Books: MSP 430 Microcontroller Basics Research: online tutorials TA’s Time –Develop the product with the basic features –Follow the schedule

24. Budget Item NameQuantityPrice Power and Energy Measurement IC 4$50 MSP 430 Microcontroller4$30 SD Card2$ 18 LCD2$80 Zigbee Module3$69 PCB3$ 100 Electronic components$100 Miscellaneous$200 Total$ 647

25. You can measure it, you can improve it.

26. Questions?