Department of Electrical and Computer Engineering PDR Presentation Wednesday October 17, 2012 Reviewed by: Prof. Bardin & Prof. Gao

Department of Electrical and Computer Engineering Team Supreme Chris Finn CSE Paulo Leal EE Tim Mirabito EE Kevin Okiah EE Advisor: Prof. Leonard

3 Department of Electrical and Computer Engineering What is the Problem? Energy conservation has a significant social & economic impact. It is hard to conserve energy because Limited quantitative data Limited social awareness Limited residential control

4 Department of Electrical and Computer Engineering How significant is the problem?  Growing Energy Consumption & Cost  Need To Radically Change Energy Paradigm  Increased energy conservation initiatives

5 Department of Electrical and Computer Engineering Context: Effect on Individuals  Give people a means to monitor and control the electrical devices within their households.

6 Department of Electrical and Computer Engineering Context: Effect on Groups

7 Department of Electrical and Computer Engineering Requirements Analysis: Specifications  Energy monitoring system for household  Allow users to control power and individual appliances  Safe for users

8 Department of Electrical and Computer Engineering Requirements Analysis: Inputs and Outputs Inputs:  120V at 60Hz or 240V at 60Hz  Display device  Computer, tablet, etc.  Wi-Fi network  Limited User Information Outputs:  Electrical Usage Data  Informed People  Social Revolution

9 Department of Electrical and Computer Engineering Special Requirements Must produce a safe product. Easy to use.

10 Department of Electrical and Computer Engineering Design Alternatives Watts up? PRO ® Home implementation

11 Department of Electrical and Computer Engineering Our Solution: The Power Pi  Increase consumer awareness and control by monitoring and networking electrical devices within a residential household  Allow users to turn On/Off power to outlets

12 Department of Electrical and Computer Engineering Our Solution: Block Diagram

13 Department of Electrical and Computer Engineering Our Solution: Communication Flow

14 Department of Electrical and Computer Engineering Block 1: Wattmeter Requirements:  Primary: Measures Wattage Outputs Data  Secondary: Measures other electrical information Amps Volts Peak Voltage Power Factor Line Frequency

15 Department of Electrical and Computer Engineering Block 1: Wattmeter Work Plan Modified Kill-A-Watt ® Meter  Using the Kill-A-Watt ® model P4400 (~$20) we can modify the breadboard to incorporate a form of data output including the following:  Wireless Transmission  USB Output  Serial Output  Add support for 240V 60Hz

16 Department of Electrical and Computer Engineering Block 2: Wireless Communication Requirements:  Model A Receive Model B data Wi-Fi connection  Model B Read in Wattmeter data Transmit data to base hub

17 Department of Electrical and Computer Engineering Block 2: Wireless Communication Work Plan Model A  Receive Model B data  Connect Raspberry Pi to Wi-Fi network for server functionality Model B  Interface a wireless module with Wattmeter output  Connect to central hub  Transmit data to hub JeeNode XBee Wi-Fi Dongle

18 Department of Electrical and Computer Engineering Block 3: Raspberry Pi Requirements:  Handle Wattmeter data output  Handle transmitted data from Model A units  Drives switching circuit  Transmit Ethernet packets containing acquired data  Host web server

19 Department of Electrical and Computer Engineering Block 3: Raspberry Pi Work Plan Raspberry Pi Wattmeter Data Current Outlet Ethernet Packet Outlet ID; Wattage data Ethernet Packet Payload: Slave

20 Department of Electrical and Computer Engineering Block 3: Raspberry Pi Work Plan Raspberry Pi Wattmeter Data Current Outlet Ethernet Packets Master (Web Server)  Receives outputs of other Model B units  Web server functionality

21 Department of Electrical and Computer Engineering Block 4: Electrical Line Communication Requirements:  Bidirectional communication over household electrical wires

22 Department of Electrical and Computer Engineering Block 4: Electrical Line Communication Work Plan HomePlug ®  Networking over existing home electrical wiring  Data rate: 200Mbps-500Mbps  Price: $40/each

23 Department of Electrical and Computer Engineering Block 5: Model A Enclosure  A surge protector shall be used as the enclosure for model A units  Contains:  Switching circuit  Wattmeter  Raspberry Pi  Wireless comm. modules  HomePlug ®

24 Department of Electrical and Computer Engineering Block 6: User Interface Every time users get

25 Department of Electrical and Computer Engineering Block 6: User Interface a

26 Department of Electrical and Computer Engineering Block 6: User Interface Utility Bill

27 Department of Electrical and Computer Engineering Block 6: User Interface it serves a

28 Department of Electrical and Computer Engineering Block 6: User Interface

29 Department of Electrical and Computer Engineering Block 6: User Interface Trying to Understand your utility bill

30 Department of Electrical and Computer Engineering Block 6: User Interface

31 Department of Electrical and Computer Engineering Block 6: User Interface We propose a revolutionary User Interface

32 Department of Electrical and Computer Engineering Block 6: User Interface Requirements:  Easy To Use  Easy To Understand  Android Compatible  Windows Compatible

33 Department of Electrical and Computer Engineering Block 6: User Interface Network Interface

34 Department of Electrical and Computer Engineering MDR Deliverables Block 1:  Acquire Kill-A-Watt ® Block 2:  Establish connections Block 3:  Basic webserver  Receive data Block 4:  Acquire HomePlug ® Block 5:  Acquire surge protector Block 6:  Simple user interface

35 Department of Electrical and Computer Engineering Questions