02-07-2012, 11:00 AM
A Cell Phone-Based Remote Home Control System
[attachment=26402]
Problem Statement
Design a system that allows users, upon authentication, to remotely control and monitor multiple home appliances using a cell phone-based interface.
Cellular Phone Communication
Technologies Considered
Tone Decoding (DTMF) Features
High Compatibility with all cell phone models
Limited user interaction
More prone to user error (uneditable)
Inefficient, time consuming
Additional hardware required (convert sound to binary)
Text Messaging (SMS) Features
Data transmitted in binary form (ASCII)
Message can be edited prior to sending
Technology Selected: Text Messaging
Reasons for Selection:
Allows user to verify and edit the message before sending to ensure the command issued is the command requested
Data is transmitted in binary, requires less hardware to manipulate (as opposed to DTMF)
Most commonly used in M2M technology
Development Languages
Development Language Considered
Assembly Language Features:
Low level language (greater device control)
Less memory required
Not many development resources/libraries available
Team out of practice in Assembly language programming
Conclusions
Lessons Learned
Functioning in a team environment
Should follow assignment criteria closely
Amount of detailed documents goes in a professional project
[attachment=26402]
Problem Statement
Design a system that allows users, upon authentication, to remotely control and monitor multiple home appliances using a cell phone-based interface.
Cellular Phone Communication
Technologies Considered
Tone Decoding (DTMF) Features
High Compatibility with all cell phone models
Limited user interaction
More prone to user error (uneditable)
Inefficient, time consuming
Additional hardware required (convert sound to binary)
Text Messaging (SMS) Features
Data transmitted in binary form (ASCII)
Message can be edited prior to sending
Technology Selected: Text Messaging
Reasons for Selection:
Allows user to verify and edit the message before sending to ensure the command issued is the command requested
Data is transmitted in binary, requires less hardware to manipulate (as opposed to DTMF)
Most commonly used in M2M technology
Development Languages
Development Language Considered
Assembly Language Features:
Low level language (greater device control)
Less memory required
Not many development resources/libraries available
Team out of practice in Assembly language programming
Conclusions
Lessons Learned
Functioning in a team environment
Should follow assignment criteria closely
Amount of detailed documents goes in a professional project