Conditions for Invalid Data
Validity flag is reported by GPS module. Usually it means that it can't get a GPS fix, so it sends either old or zero coordinates.
Validity flag is reported by GPS module. Usually it means that it can't get a GPS fix, so it sends either old or zero coordinates.
Can you help with what is invalid data as shown by 'valid' flag in positions table?
I have some data with zero latitude and longitude which has valid = 0 and I can understand this to be invalid.
I also have apparently valid GPS data (correct latitude & longitude) which has valid = 0. It does have altitude = 0 and no address displayed on web interface.