Attention:
Trimble 1 and Trimble 2 GPS Receivers are operated by ship's command only.
The sensor is essential device providing position data for a large number of scientific devices. Most sensors do not directly receive positions from GPS sensor but from motion sensor Hydrins.
The system TRIMBLE 1 / HYDRINS 1 and TRIMBLE 2 / HYDRINS 2 are alternatively sending positions to the customers. DShip is logging positions from both GPS receivers in parallel.
Summary
Position data can be received from GPS receiver via terminal server. Records provided in NMEA style of type $GPGGA, $PGGLL, $GPVTG, $GPZDA.
Position data can also be received by DShip online export stream. The format of export stream is of NMEA style, but user can define an individual parameter composition.
Trimble 1
Manufacturer | Trimble |
---|---|
Model | SPS852 |
Serial No. | n/a |
Type | satellite positioning system |
Trimble 2
Manufacturer | Trimble |
---|---|
Model | SPS852 |
Serial No. | n/a |
Type | satellite positioning system |
Contacts
Name | Institution | Role |
---|---|---|
Ralf Krocker | Alfred-Wegener-Institute for Polar and Marine Research | Data Provider |
Reederei Laeisz | Reederei Laeisz | Engineer In Charge |
Components
Position
Trimble 1
Origin Description: | xyz-position of antenna from Alignment Survey Report RV Polarstern (June 2016), located on upper observation deck |
X: | 78.753 m (X-0 is at the center of der rudder (ref. design drawing of the vessel), positive X-axis is forward and along vessel centerline) |
Y: | -8.635 m (Y-0 at centerline, positive Y-axis is portside) |
Z: | 33.37 m (Z-0 is set to the lowest point of the keel, positive Z-axis is upwards) |
Trimble 2
Origin Description: | xyz-position of antenna from Alignment Survey Report RV Polarstern (June 2016), located on upper observation deck |
X: | 78.753 m (X-0 is at the center of der rudder (ref. design drawing of the vessel), positive X-axis is forward and along vessel centerline) |
Y: | -8.635 m (Y-0 at centerline, positive Y-axis is portside) |
Z: | 33.37 m (Z-0 is set to the lowest point of the keel, positive Z-axis is upwards) |
Data logging, storage and archiving
Logged parameters
Parameter | Sensor Output Type | Unit |
---|---|---|
latitude | latitude | degree |
longitude | longitude | degree |
speed made good | duration | knots |
GPS quality indicator | quality flag | unknown |
date | date and time | unknown |
time | date and time | gmt |
course | attitude | degree |
number of satellites | quality flag | unknown |
Central geographical ship's position and time standard
GPS positions of TRIMBLE 1 and TRIMBLE 2 are centered to the corresponding antenna.
Rawdata storage on board
Dship
Device name |
trimble 1 GPS |
---|---|
Parameters |
course made good [°]; Date; day; EW; GPS quality indicator; month; NS; number of satellites in fix; position latitude [°]; position longitude [°]; raw time; speed made good [kn]; Time; UTC raw [s]; year |
Data archiving on land
File format(s) |
*.txt |
---|---|
Calibration certificates |
NO |
Documentation
- Trimble SPS855 datasheet (Factsheet, 590 kB)
- Trimble SPS855 further information (Factsheet, 465 kB)
- Trimble SPS855 manual (User Manual, 678 kB)
- Trimble SPS855 specifications (Factsheet, 67 kB)
- Trimble technical drawing (Factsheet, 47 kB)