18 years ago
AUVs/Robots in a rugged envrionment where differential GPS (GPS/RTK)
coverage is not availabe and laser tracking might not be possible
due to line of sight, limitations.
While I know what the requirements are for my project, I'm curious
to find out what requirement would be needed for a general purpose
tracking system for ground based (for now) vehicles/robots.
1. what kind of tracking areas are useful (10x10m 100x100m,
etc...) ? How many beacons per area is acceptable.
2. what accuracy over range (e.g. 1% is 0.1m in 10m) ?
horizontal ? what about vertical ?
3. cost - here I'm looking for unit costs of the base stations,
and on the mobile system. could be in cost per area covered.
4. readout interface
does the robot need a readout from the mobile unit, readout
from base station/beacon stations. also, rs-232 vs. usb, pwm,
etc... E.g. a mobile unit could look like a GPS receiver and
output NMEA strings.
5. power requirements (12VDC, 5VDC, watts ?)
6. envrionment (temperature, dusty, wet, lot's noise(rf/acoustic) ?
7. update rate (1hz, 10hz ?) does it need to be realtime, or can
it be post processing.
8. max. number of vehicles to track.
I realize that different folks have different requirements, however,
I'm trying to find out if there is a set of features/specs would would
satisfy 80% of the applications for a given cost.