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searchwing-drohne-allgemein [2019/10/05 20:56] beckmanf Books |
searchwing-drohne-allgemein [2021/11/01 12:31] (current) beckmanf [Books] added sadraey |
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| - | ===== Allgemeines ===== | + | ===== Overview ===== |
| - | ==== Vergleich Suchleistung ==== | + | ==== Comparison of search approaches ==== |
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| + | How does the search operation from vessel, plane and with a drone compare? This document also includes a discussion about the camera angle of view and ground resolution calculations. | ||
| {{:sw-areacalc.pdf|Friedrich Beckmann, Searchwing - Search Area Calculations, January 2019}} | {{:sw-areacalc.pdf|Friedrich Beckmann, Searchwing - Search Area Calculations, January 2019}} | ||
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| + | ==== Requirements ==== | ||
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| + | After some experience with the vessels where the drone is supposed to be used I have put together some | ||
| + | requirements for the drone. | ||
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| + | {{ ::sw-requirements.pdf |Friedrich Beckmann, SearchWing - Requirements, May 2020}} | ||
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| + | ==== Weight, Dimensions and Power ==== | ||
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| + | The weights and the dimensions of the X-UAV Mini Talon drone with the payload and the | ||
| + | power consumption. | ||
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| + | {{ ::sw-weight.pdf | Friedrich Beckmann, SearchWing - Weights, Dimensions and Power, May 2020}} | ||
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| + | ==== Impact of weight, drag and speed on range ==== | ||
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| + | How does weight, drag and speed impact the range of the drone? | ||
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| + | {{ ::sw-range.pdf | Friedrich Beckmann, SearchWing - Flight physics for dummies, November 2021}} | ||
| ==== Books ==== | ==== Books ==== | ||
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| [[https://ntrs.nasa.gov/search.jsp?R=19760003955|T.A. Talay, Introduction to the aerodynamics of flight, NASA Technical Report NASA-SP-367, 1975]] | [[https://ntrs.nasa.gov/search.jsp?R=19760003955|T.A. Talay, Introduction to the aerodynamics of flight, NASA Technical Report NASA-SP-367, 1975]] | ||
| + | [[https://onlinelibrary-wiley-com.ezproxy.hs-augsburg.de/doi/book/10.1002/9781118352700|Mohammad H. Sadraey, Aircraft Design - A Systems Engineering Approach. Wiley, 2013]] | ||
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| + | ==== Images per Mission ==== | ||
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| + | As described in "Searchwing - Search Area Calculations" page 4, at 550 m attitude a vertical field of vision (image) is 495 m long (Table 4). For covering boots at the surroundings of an image an overlapping of 5 % is needed, so that approximately every 470m an image is taken. | ||
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| + | With a avg flight speed of 13,8 m/s the drone is moving to a new image every 34,06 seconds. This means with a mission time of 1 hour we shot approximately 106 Images. An image has a avg size of 1 MB, so every mission produce approximately 106 MB of images per hour, per Camera. | ||
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| + | Raspberry Zero W can transfer images over Wifi with 4,46 MB/s, so 23,77 seconds is needed for transmitting the images to a laptop. | ||
| + | |||
| + | ==== Dataflow Drone with Data downlink ==== | ||
| + | {{ ::dataflow.jpg?1300 |}} | ||