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d) Activate Position Tracking (Command “TRACK”)
The term “tracking” means regular saving of the current position, including time stamp, in the internal memory. The number of saved points
depends on the firmware version; the current number can only be determined with the TEST command.
At a later time, the values can be submitted to a PC by USB. The corresponding programme can be used to track the progress over time.
Since the positions are saved with a time stamp, the product time is to be correctly updated with the “TIME” command before this
function is activated.
Control recordings:
The following command configures the tracking function and activates it afterwards:
SET TRACK <time> [RING] #1513
<Time>: Time interval between two recorded values in seconds (1.......250 s)
RING: Overwrite old values (optional parameter)
Use the necessary parameter <time> to indicate the time interval between two data values in seconds. The optional parameter “RING” indicates
what is to happen when the memory is full. “RING” overwrites the memory from the beginning (as in a ring buffer). this means that the oldest data
are overwritten.
SET TRACK 15 RING #1513
A new item is written in the memory every 15 seconds here. When the memory flows over, the oldest value is overwritten.
The current status, as well as indication of the existing and free memory points and estimation of the maximum recording time are returned with
the following command:
TEST TRACK #1513
Example:
GX103_GPS 1.08
Name and version
Track: off
Current status: off
Time: 30s
Recording interval: 30 s
Ring memory: off
Continuous memory: off
Memory used: 191 points
Data saved: 191 items
Memory free: 1709 points
Free memory slots: 1709 items
Free recording time: 14h 14m 30s
Time until memory overflow
If you want to stop the recording, use the RESET command:
RESET TRACK #1513
Alternatively, one of the buttons 1 to 3 can be configured to control the tracking function. For more on this, see the chapter KEY.
Transfer data:
The following command is needed for reading out the data:
TEST TRACKDATA <CSV/GPX> #1513
CSV: Data are transmitted as “Character Separated Value” that can be further processed in any spreadsheet programme.
GPX: This GPS Exchange Format is standardised and can be processed by many programmes (e.g. Google Earth).
Due to the huge data volume, this command is only available via USB.
The data are formatted so that they can be saved into the corresponding file.
The ANSI characters STX and ETX are used as start and end characters.
It is recommended that this function is only executed via a programme provided by Conrad.
Summary of Contents for GX103+GPS
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