Free ranging on grid
Free Ranging On Grid ( abbreviation : FROG ) (in German "Free navigating on a grid" ) is a navigation technology for automated guided vehicles (AGV) or Automated Guided Vehicle (AGV) with the help of the soil coverage are arranged in a grid permanent magnet or RFID transponders can be controlled. Navigation is based on virtual routes that are followed by odometry (navigation based on data recorded by encoders on the wheels and the steering). Since the odometric navigation is subject to certain tolerances, referencing takes place using the grid. On the basis of the programmed virtual routes, the vehicle can determine its position itself, make corrections, use all routes and thus approach all destinations. FROG means that an entire network (grid) of permanent magnets or RFID transponders is laid in the area of use of the AGV / AGV and their coordinates are programmed. The autonomous vehicles can navigate freely on this grid.
In the "European Container Terminal" (ECT) in the port of Rotterdam and in the " Containerterminal Altenwerder " (CTA) in the Hamburg port, the FROG technology with RFID transponders was used extensively.
The FROG technology with magnetic grid is widely used in industry in classic driverless transport systems (AGV) . The Dutch company Frog AGV Systems supplies systems with this navigation technology worldwide.
literature
- G. Ullrich: Driverless transport systems. A primer - with practical applications - on technology - for planning Vieweg + Teubner Verlag, Wiesbaden 2011, ISBN 978-3-8348-0791-5
Individual evidence
- ↑ Vehicle technology ( Memento of the original from March 3, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
