1. Remote-Controlled AC Devices
Group Members: Alan Deguzman, Adarsh Uppula and David Zats
Hardware Design
Software Design
Switch relay to control the AC power with the mote
AC to 3V converters provides power to mote
TelosB mote programmed with TinyOS
Server
Facilitates interaction with TelosB motes in AC adapters
Always-on, and static IP allows users to connect from anywhere, anytime
Two systems for converting user requests into binary mote packets:
PHP
- Allows user to interact with motes through browser
- Provides mechanism for turning mote on and off and also for specifying the time for when the mote should turn on and off
SML (Sensor ML) & RESTful URLs
- Provides standardized mechanism
Allows easy integration with different systems
Design Motivations
Complexity moved to server => easier to debug
Reduction in computation on mote and packet size => increased lifetime
Components above packaged into off the shelf AC adapter box
Networking Protocol
Networking Sequence
1. Browser sends request to server with specified arguments
2. Server parses request and sends 10 binary bytes to the TelosB mote via PHP sockets
3. TelosB mote responds by sending 3 bytes back to the server via TinyOS sockets
4. Server parses response and sends either HTML or SML to the browser depending on the request that was made
Structure of Packets
Mode: Get status, set status, or delay/duration
Appliance: Choose appliance connected to mote
Argument 1 & 2: Status or delay/duration (depends on mode)
Response: Status or ignored (depends on mode)
Final System