Home Energy Management Gateway


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Presented at Senior Design Day in University of California, Irvine.

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  • Use energy monitoring agents to create intelligent power schedule that leads to greener environment and lower monthly bills
  • We’ll be reading from xbee inapi mode. Why are you using an arduino if you have an xbee. Limitation on the xbee that the more IO pins you use, the less buffer you get and less accurate the data that we are receiving. When we try to implement an entire HVAC, we need more buffer to get more accurate data. In reality, we can monitor and control a device from just one xbee.
  • Why use xbee?Industry standardWhy use arduino?Showcase if it’s in a central place such as living room, we only need one arduino unit to control multiple devices, which has more buffer than xbee alone. Lower profile and more cost effective.
  • Home Energy Management Gateway

    1. 1. Home EnergyManagement SystemCliff Huang | Timothy Kwan | Kevin Sison | Vinh Trinhspecial thanks to our faculty advisorMohammad Al Faruque
    2. 2. Goals To Prototype a lab-scale residentialenergy monitoring and control system. To Implement an intelligent andautomatic scheduling algorithm To Design a user-friendly web interfacefor system management
    3. 3. Team Organization Cliff Huang (Team Lead) XBee communication between coordinator & end devices Timothy Kwan Java application that houses scheduling algorithm,network connectivity, database, and webserver Kevin Sison Developing frontend and backend for web application Vinh Trinh Fabricating and coding for the hardware system
    4. 4. Background
    5. 5. System
    6. 6. Subsystem: Hardware &Networking Hardware Monitor power use at the plug bytapping into Kill-A-Watt’s OpAmp Monitor sensor data with Arduino Build HVAC, Lighting, and Relaycircuits Networking Use the XBee API framework totransmit packets between Javaprogram, XBees, and Arduinocontrolled Xbees Use polling to send commandsignals and receive updated sensordata
    7. 7. Subsystem: Java Application Java Application Collect sensor and power use data fromXBee and update database Run scheduling algorithm using userdata from webserver Send command signals to XBee givenalgorithm results Priority-Based SchedulingAlgorithm Factors considered: Electricity rate,Home vacancy, External temperature
    8. 8. Subsystem: Web ApplicationGOAL: Build a web application that is intuitive, user-friendly,and informativeClient-side Server-sideAJAX calls thatsend JSON dataBuilt for use ondesktops, tablets, andphones so users canaccess their home fromanywhere!
    9. 9. Parts Lists & Budget Total System Cost Arduino $20x2 Kill A Watt $20x2 4-Gang Box $3 Electrical Outlet $3 XBee Module $2xx5 Power Tail $25x2 Relays $15 Light Sensor $13 Temperature Sensor $15 XBee Explorer USB $25 XBee Shield $25x2 High Power LED $7x2 12V Power Supply $5x2 Total $398 Individual Unit Cost Base Station $42 HVAC $110 Control Agent $82 Monitor Agent $42 Light + Sensors $116
    10. 10. Results Manage multiple home devices simultaneously Create energy efficient HVAC and lighting schedules View real time and historical power use from mobiledevices Target Audience: Increasingly busy home owners whodemand an economic and unobtrusive way to lowermonthly bills
    11. 11. Innovation & BusinessOpportunities Southern California Edison (SCE) and other electricutility companies allow customers to register andmonitor individual Zigbee devices in their home Agents sit on the plug rather than in the device Relatively low cost Easy to use, user-friendly web interface Device management does not require logging into theutility company Prototyped system includes Base Station, HVAC Agent,Lighting + Sensor Agent, Monitoring Agent, Control Agent
    12. 12. Plan Implement the historical graphs tab on the website to saveand view archived power usage Use a less intrusive and more economical device for thebase station, such as the Raspberry Pi Replace the power switch tail with self-made relay forsmaller profile and cost reduction Use cheaper sensors and remove the Xbee Shield to furtherreduce cost. Only used for illustrative and prototypingpurposes Include motion sensor to detect people’s presence in thehouse Acquire Zigbee certification and register with utilitycompanies
    13. 13. Team MembersCome to our table for a live demonstration and moreinformation!Team 12, Home Energy Management System