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Geoscan, which built and programmed the drones and ran the display, chose u-blox positioning technology for its combination of accuracy, reliability, performance, and ability to access positional data from both the GLONASS and GPS satellite navigation constellations. The Geoscan Salute drones, which are just ten centimeters across, were designed exclusively for use in group flights and drone shows.
The drones use u-blox NEO-M8P high precision GNSS modules to provide the positioning data necessary to ensure that they can be placed in the sky with a high degree of accuracy. This makes them less likely to collide with each other and enables them to be moved more quickly and efficiently. The end result is a more fluid drone show, in which the improved positional accuracy of each drone contributes to a better overall display and contiguous figure forms. Salute drones can also return to their base stations automatically at the end of a show.
The NEO-M8P high precision GNSS module used in the Salute drones implements a real-time kinematic (RTK) approach, that improves positional accuracy by comparing the phase of a signal being broadcast from a positioning satellite with that of the same signal that has been received and re-broadcast from a fixed base station. The accuracy gained in this way enables drones to calculate their relative positions to within millimeters, and their absolute positions to within one centimeter of the intended position.
Geoscan has been producing drone displays for the past two years, starting with just 40 drones flying at once. Semen Lapko, Head of Drone Show Project, Geoscan, said: “The u-blox modules in our Geoscan Salute drones have improved our drones’ positioning accuracies to about one centimeter, and have helped reduce pre-launch preparation time. Drones now move more quickly and accurately, while also operating more efficiently.”
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