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searchwing-drohne-allgemein [2020/01/28 22:24] bjoernh1 |
searchwing-drohne-allgemein [2020/05/25 23:27] 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}} | ||
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+ | ==== 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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==== Images per Mission ==== | ==== Images per Mission ==== | ||
- | As described in "Searchwing - Search Area Calculations" page 4, at 550m mission attitude a vertical field of vision (per image) is 495m long (Table 4). For covering boots at the surrounding of an image an overlapping of 5 % is needed, so that every 470m an image is taken. | + | 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. So with a mission time of 1 hour we shot 106 Images. An image has a avg size of 1 MB, so every mission produce 106 MB of images per hour, per Camera. | + | 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 s is needed. | + | 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. |