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searchwing-drohne-allgemein [2019/10/05 20:56] – Books beckmanfsearchwing-drohne-allgemein [2021/11/01 12:31] (current) – [Books] added sadraey beckmanf
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-===== Allgemeines =====+===== Overview =====
  
-==== Vergleich Suchleistung ====+==== Comparison of search approaches ==== 
 + 
 +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}}
 +
 +==== Requirements ====
 +
 +After some experience with the vessels where the drone is supposed to be used I have put together some
 +requirements for the drone.
 +
 +{{ ::sw-requirements.pdf |Friedrich Beckmann, SearchWing - Requirements, May 2020}}
 +
 +==== Weight, Dimensions and Power ====
 +
 +The weights and the dimensions of the X-UAV Mini Talon drone with the payload and the
 +power consumption.
 +
 +{{ ::sw-weight.pdf | Friedrich Beckmann, SearchWing - Weights, Dimensions and Power, May 2020}}
 +
 +==== Impact of weight, drag and speed on range ====
 +
 +How does weight, drag and speed impact the range of the drone?
 +
 +{{ ::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]]
 +
 +==== Images per Mission ====
 +
 +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.
 +
 +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.
 +
 +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 |}}
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