A remote-controlled global navigation satellite system based rover for accurate video-assisted cadastral surveys

Abstract

<span>One of the main tasks of a cadastral surveyor is to accurately determine property boundaries by measuring control points and calculating their coordinates. This paper proposes the development of a remotely-controlled tracking system to perform cadastral measurements. A Bluetooth-controlled rover was developed, including a Raspberry Pi Zero W module that acquires position data from a VBOX 3iSR global navigation satellite system (GNSS) receiver, equipped with a specific modem to download real-time kinematic (RTK) corrections from the internet. Besides, the Raspberry board measures the rover speed with a hall sensor mounted on a track, adjusting the acquisition rate to collect data at a fixed distance. Position and inertial data are shared with a cloud platform, enabling their remote monitoring and storing. Besides, the power supply section was designed to power the different components included in the acquisition section, ensuring 2 hours of energy autonomy. Finally, a mobile application was developed to drive the rover and real-time monitor the travelled path. The tests indicated a good agreement between rover measurements and those obtained by a Trimble R10 GNSS receiver (+0.25% mean error) and proved the superiority of the presented system over a traditional metric wheel.</span>

Modelling and estimating trajectory points from RTK-GNSS based on an integrated modelling approach

“…Global navigation satellite system (GNSS) comprised of a group of satellites that generate and transmit positioning, timing, and navigation data from space to connected receivers or devices on earth. GNSSs were used in various applications such as locating potential forest fires [1]; space surveillance and tracking system [2]; observation of coastal tides [3]; cadastral surveying [4] and localization and navigation system [5]. In addition to GNSS, simultaneous localization and mapping systems (SLAM) [6]- [8] and indoor localization and navigation systems [9]- [10] were developed for localization and navigation systems.…”