Picotrack 4G User Manual V1.2
Seite 16
Event Message Structure
The first identified and valid GPS position will be taken as the reference position for the distance
interval calculations. The next distance interval event will be generated if the configured distance
has been reached. If another event (e.g. time interval event) has been generated before, the
distance interval measurement starts again at the position of this new event. That means that
any position message with an actual GPS position sets a new reference for the distance interval
calculations. This reduces the number of messages sent while still keeping the desired resolution
of the tracking application.
A position message will also be generated in the case of a direction change being greater than
the configured angle while travelling at the configured minimum speed.
Switching on and off the external Power supply (e.g. ignition on/off) also leads to an event
message. The last valid position will be transmitted when no new valid GPS position is available.
Content
Description
Event/Log –Code
Reason for the status message
Event/Log Timestamp
Time at which the event has happened
GPS Timestamp
GPS timestamp at the moment of fetching longitude and
latitude
Longitude
Degree of longitude in 100µ degrees
Latitude
Degree of latitude in 100µ degrees
Fix Type
1,2 or 3, depending on the availability of satellites in view having
a sufficient signal strength:
1D Fix (no valid data)
2D Fix (no height indication)
3D Fix (position message with height indication)
Speed over ground
Speed in km/h
Satellites for calculation
Actual number of satellites which are used for calculation
Height
Height above sea level (in m)
Mileage
Mileage in km
DigIns
4 digits e.g. 0010, if charger is connected
Analog Input 1
Value of the analogue input 1, i.e. Battery voltage with a
precision of 1/10 volts
MotSens
Status of the motion sensor
Table 9: Content Description
