Sunnyvale, USA, 20 December 2006 – Trimble has announced that it has supplied its VRS (Virtual Reference Station) software to establish a national GPS infrastructure network in the south of Poland.
The VRS network provides a geospatial infrastructure for surveying, engineering and GIS professionals. The VRS network enables high accuracy Real Time Kinematic (RTK) GPS positioning without the need of separate base stations or software, significantly increasing efficiency and productivity.
The network is the first of its kind in Poland and supplies centimeter-level RTK GPS data for a variety of positioning applications including geodetic and cadastral surveying, road and bridge construction, and archeological excavation site location and documentation. There are also plans to use the network for managing and dispatching emergency medical and rescue teams in Krakw to improve efficiency and response times.
The VRS network, known as Malopolski System Pozycjonowania Precyzyjnego, is operated by the BGUM, the survey office of the local government. Built with Trimble GPSNet and RTKNet software, the network covers the southern part of Poland, called Malopolska. In addition to improving the accuracy of results, the network is expected to enable fast measurements within 2-5 seconds. The use of the network will be free of charge for surveyors in the next three years.
“The VRS network provides a highly reliable, cost-effective means for surveyors and other professionals to work faster and achieve more accurate GPS positioning results,” said Maciej Antosiewicz, Chief of the Survey Office at the Malopolska Regional Office of the Polish Government.
“The Malopolska network is expected to provide vast opportunities for the positioning industry that could bring significant business benefits. The VRS network is the first part of the planned nation-wide GPS network, known as ASG (Aktywna Siec Geodezyjna or Network for Online Positioning User Service), which will be a GPS CORS (Continuously Operating Reference Station) network covering the entire country of Poland.”
The network also makes it easier to combine GPS technology with traditional optical surveying methods because the results are available in real-time. In addition, simultaneous use of GPS and optical equipment does not require complex preparations and data exchange.
– About BGUM
BGUM is the Geodesy and Cartography Office for the Malopolska region of Poland. BGUM is responsible for the region’s cartographic resources and manages the cartography and geodesy fund; maintains the regions databases within Poland’s GIS; develops rules for managing the Arable Land Protection Fund resources; and performs other activities to protect and maintain the region’s arable and forested land.
– About Trimble VRS Technology
Trimble VRS technology uses the RTK solutions from Trimble RTKNet software and provides high-accuracy, RTK GPS positioning for wider areas. The VRS network is available at any time without setting up a base station and provides common control anywhere in the network.
Because Trimble RTKNet software is able to process the entire network simultaneously, Trimble VRS networks offer greater quality control and higher data accuracy at longer distances. In the field, the farther users get from a reference station using conventional RTK, the more susceptible they become to reduced accuracy and performance due to systematic errors such as ionospheric and tropospheric effects. In a Trimble VRS network, RTKNet software provides a fully modeled solution that factor in potential systematic errors.
Users connect into the system using a wireless connection; the software acknowledges the users field positions and allows them to operate as though there is a reference station—a virtual reference station—right next to their rover. As a result, the PPM error is eliminated or significantly reduced, allowing surveyors to achieve RTK precision over much greater distances with fewer reference stations. Users can also retrieve stored GPS and modeled data from the control center via the Internet for post-processing.