Specifications

13
Efficient HVAC Control and Feedback System
Main Control Unit
User Interface Remote Sensing Unit
 Bidirectional Communication with LCD Touch Screen User Interface
 Receives wireless information from remote sensing unit
 Outputs 24V AC “Control Voltage” to multiple Appliances
 Connects to existing wireless internet network
 Connects to web server to allow user to view conditions and view / change
settings from a mobile device
 Bidirectional communication with
Main Control Unit
 Touch screen interfacing allows
user to manipulate interface with
his/her finger
 7 inch display allows for visually
appealing and easy to use
display
 Precision measurements of
temperature and relative humidity
 Wireless communication with main
control unit to report data
 Weatherproof housing
 Battery powered for ease of
installation
Figure 3 High level system block diagram
1.7 Timelines and Milestones
Our group has decided to meet three times a week in the Harris Engineering
Building to discuss individual research that has been completed as well as to
share any documentation that has been written. We will typically share our
completed work by transferring word documents between our personal
computers, or by uploading our completed documents to our Google Docs group
that we have established. Setting up the Google Docs site allows us to back up
our work on the Internet so if we were to experience problems with our personal
computers and our portable media devices our work will not be lost. As well as
the benefits of backing up our work, we set up a Gmail account and sent the
Username and Password to our sponsors so they can log into the account and
track our progress.