Abstract
Abstract. In this paper, we present a workflow how to design and implement a low-cost survey drone that meets the quality requirements of a much higher cost drone system. The technical specifications of available components and our design boundaries were applied in eCalc RC – xcopterCalc calculator in which the optimal setup was found by simulation. The main boundaries of design were derived from safety, operation time and payload capacity. Pixhawk 2 FCU, which is based on ArduPilot open source platform, was selected to handle autopilot and control functionalities. In addition, the system included a camera and a gimbal. The camera was controlled by FCU, which allows to geotag images using the on-board GPS data. The assembled survey drone was tested in a real survey mission. We successfully managed to complete a 13 minutes survey mission in mild wind conditions. According to simulation, the expected flight time range was between 9 and 15 minutes. In addition, simulation provided useful information on how the drone works under certain conditions such as working in extreme temperatures or high elevation locations as well as under heavy payloads. Even though our example was a survey drone, it is possible to use the same principles to design and implement a drone suitable for other tasks.
Highlights
Aerial survey mapping has traditionally been the most important application of photogrammetry
The drone was fitted with a 6S2P battery pack
The paper presents a workflow of designing and simulating a survey drone design
Summary
Aerial survey mapping has traditionally been the most important application of photogrammetry. First aerial images were taken from a hot air balloon already in 1858, but during the first world war, the trend of systematic aerial survey became stronger (Cohen, 2000). Modern full-scale aerial photogrammetry is often conducted with a fixed wing aircraft and a specialized camera equipment. Typical Ground Sample Distance (GSD) in urban applications is 10cm (Meixner and Leberl, 2010). With DMC III camera this is achieved with 2359m flying altitude. The flying altitude can be several kilometres making data acquisition efficient. Such equipments are expensive and highly regulated
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