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Home Energy Management Gateway
- 1. Home Energy Management System Cliff Huang | Timothy Kwan | Kevin Sison | Vinh Trinh special thanks to our faculty advisor Mohammad Al Faruque
- 2. Goals To Prototype a lab-scale residential energy monitoring and control system. To Implement an intelligent and automatic scheduling algorithm To Design a user-friendly web interface for system management
- 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. Background
- 5. System
- 6. Subsystem: Hardware & Networking Hardware Monitor power use at the plug by tapping into Kill-A-Watt’s OpAmp Monitor sensor data with Arduino Build HVAC, Lighting, and Relay circuits Networking Use the XBee API framework to transmit packets between Java program, XBees, and Arduino controlled Xbees Use polling to send command signals and receive updated sensor data
- 7. Subsystem: Java Application Java Application Collect sensor and power use data from XBee and update database Run scheduling algorithm using user data from webserver Send command signals to XBee given algorithm results Priority-Based Scheduling Algorithm Factors considered: Electricity rate, Home vacancy, External temperature
- 8. Subsystem: Web Application GOAL: Build a web application that is intuitive, user-friendly, and informative Client-side Server-side AJAX calls that send JSON data Built for use on desktops, tablets, and phones so users can access their home from anywhere!
- 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. Results Manage multiple home devices simultaneously Create energy efficient HVAC and lighting schedules View real time and historical power use from mobile devices Target Audience: Increasingly busy home owners who demand an economic and unobtrusive way to lower monthly bills
- 11. Innovation & Business Opportunities Southern California Edison (SCE) and other electric utility companies allow customers to register and monitor 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 the utility company Prototyped system includes Base Station, HVAC Agent, Lighting + Sensor Agent, Monitoring Agent, Control Agent
- 12. Plan Implement the historical graphs tab on the website to save and view archived power usage Use a less intrusive and more economical device for the base station, such as the Raspberry Pi Replace the power switch tail with self-made relay for smaller profile and cost reduction Use cheaper sensors and remove the Xbee Shield to further reduce cost. Only used for illustrative and prototyping purposes Include motion sensor to detect people’s presence in the house Acquire Zigbee certification and register with utility companies
- 13. Team Members Come to our table for a live demonstration and more information! Team 12, Home Energy Management System
Notas del editor
- 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.