Home Automation and Sensor Network

There were two primary driving factors behind the conception and execution of this project: firstly, there are so many ways in which residential homes are inefficient with their use of energy, and the use of fairly simple electronics, paired with an equally simple user interface, could reduce this wastage significantly.

Secondly, the group members all had certain interests that they wanted to pursue in a design project, such as embedded systems design, networking, and power measurement and control, so by selecting a home automation system as a target application, all of these technologies could be explored and learned by the group members.

Design

The eCasa Home Automation Sensor Network is a system that consists of four modules, each with their own specific task and hardware:

  • Server Module: Handles user interface, and distributes command and control signals to other modules over the network
  • Light Control Module: Switches lights on and off, or dims according to ambient lighting conditions, based on signals from the Server Module
  • Thermostat Module: Opens and closes a heat vent based on the room’s current temperature and a set point from the Server Module
  • Power Monitoring Module: Measures the power usage on two outlets and sends these values to the Server Module