Network Embedded Systems Project
Objective: The aim of this project is to track the location of a set of people in 3 rooms with data available on a website updated every 5 mins on a GUI.
System-setup: Telosb motes running on tinyOS
Methodology:
- Trilateration is used to calculate the position of tracker nodes.
- RSSI (Recieved Signal Strength Indicator is used to calculate the distance between trackers and beacons).
- Time slicing is used and each Tracker node is alloted with a Time Slot during which it calculates its location by broadcasting RSSI request messages to the 3 beacon Nodes.
- Time Synch for TDMA is required, (TDP can be used. Yet to be finalized)
- Tracker will forward their location to the nearest beacon. THe beacons form a multihop path and forward the position of the nodes towards the base station.
- All the nodes will sleep for a period of 5 mins in order to save power. (because location is updated every 5 mins)