Considerations for Sensor Placement with Location Tracking
Every site is unique in terms of actual sensor coverage; this section merely
describes sensor placement and respective coverage in a simplified way. Actual
signal propagation is a very complex issue due to environmental factors like the
reflection/absorption properties of materials (walls, furniture), large moving
object, etc.
- Sensors should be placed in corners, preferably in a way which minimizes random
fluctuations in signal strength caused by people moving around, opening /
closing doors, windows or large objects which may be moved during operation,
etc.
- Sensors should not be placed in a straight lineto eliminate the possibility of
having two or more similar RSSI values from sensor combinations for different
location, combined coverage areas for the sensors should not be symmetric.
- Place additional sensors in areas where accuracy is importantto achieve
repeatable and consistent positioning resolution, sensors should be placed so
that they measure unique signal strengths and sensor combinations for each
location considered significant.