Team 16 – Efficient HVAC System

• Daniel Galarza – CpE• Chung Chien Hsia – EE• Marvin Martinez – CpE• Kevin Ivy - EE

Motivation

• Household energy consumption• Heating, Ventilation and Air Conditioning• Different needs for different climates• Humidity almost never considered

Project History

• iTemp – First design• Did NOT work

• Efficient HVAC System – Second design

• Worked much better• Expensive, and

excessive components• Stopped working later

Objectives

• Improve upon previous projects• Make the project suitable for mass production

Specifications

• Reduce costs

The Database

• Will connect the control system hardware to the website in the Internet.

• Ensures the data on both systems are accurate and consistent.

• Updates any changes made on the data by either system.

• Implemented on a hosting website given by the sponsor.

Mobile Software Comparisons

Android• SDK is free• Many different software

programs available that supports Android

• Primary language is Java

iOS• SDK is $100 roughly• Few other software

programs are compatible with it

• Primary language is Objective-C

Main Block Diagram (first version)

Software/Services Used

• Hype – Used to design the site structure• Dreamweaver – PHP and SQL editing• Host Gator – hosting website provided by

sponsor. Will host database for system.• phpMyAdmin – Creates and edits SQLn

databases

User Activity Diagram

The Website

• Allows a user to get access to their home HVAC system.

• Will closely follow the format of the control system.

• Will have all the same functionalities of the control system.

• Will obtain all of the consumer’s data from their specific entry within the database.

Processor Comparison

• iTemp• Efficient HVAC System – Panda Board– Expensive, many features unused

• Group 16 – PIC32• Significantly cheaper

Screen Comparison

• iTemp• Efficient HVAC System – • Group 16 – Newhaven International Screen– Cheaper