[[searchwing-drohne-allgemein]]

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searchwing-drohne-allgemein [2019/10/05 20:56]
beckmanf Books
searchwing-drohne-allgemein [2020/05/25 23:27] (current)
beckmanf [Comparison of search approaches] added cam
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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}}
  
 ==== 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]]
  
 +==== 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.
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