Specifications

8
The system needs to be able to expand for features to be added in the future.
Later on the sponsors may want to develop another version of the system with an
expanded feature list. The microcontroller is required to have extra memory
available to add these features. Possible features to be added to the system are
listed below:
 Scented Air
 Air Purification
 Air flow rate component to provide an alert for the user when a new filter
is necessary
 Possibility of integration with a weather server to provide the user with a
“severe weather alert”
 Expanded controls for larger HVAC systems consisting of more than 2 AC
units
 CO2 sensors to alert the user of CO2 inside the building
1.5 Roles and Responsibilities
1.5.1 Division of Labor
In order for our group to be successful, the project must be decomposed into
parts and each part must be assigned to a group member. Our group is
composed of three Electrical Engineers, and one Computer Engineer and we
have divided the work according to our group member‟s area of expertise. Each
member is responsible of a particular component of the design process as shown
in Figure 2. Collaboratively we are all striving to reach the same goal of
designing and implementing a useful and efficient HVAC control system that
meets the specifications and requirements of both our Senior Design course, as
well as our sponsors. Diving labor amongst the group members will allow each
member to focus on a specific component of the overall design, and when
problems arise during the build of the system the group will know who is best
prepared to produce a solution.
Derick‟s primary responsibility was the design of the printed circuit boards and
power supply distribution. This area is extremely important because the printed
circuit boards determine the layout of how each component of the HVAC control
system will operate. The printed circuit boards provide a means for components
such as the microcontrollers, wireless devices, and sensors to communicate to
the control unit via the router and vice versa. In any control system data transfer
is essential so that the correct decisions can be made and feedback can
accurately be assessed.
Josh‟s primary responsibility in the project is integration of the web server into the
system and lead programmer. Although all group members will be involved in
the programming process, Josh is the only Computer Engineer therefore he has
the most programming experience in the group and is best fit for the role of lead