Field detection platform and method for mountain covered by forest
A technology of on-site detection and mountain body, applied in the field of forest rescue, can solve the problem that the forest-covered mountain body cannot perform personnel search and rescue, and achieve the effect of convenient control, reliable operation, and improvement of search and rescue efficiency.
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[0022] The implementation of the forest-covered mountain on-site detection platform and method of the present invention will be described in detail below.
[0023] A telephoto lens is a photographic lens that has a longer focal length than a standard lens. Long focal length lenses are divided into two categories: ordinary telephoto lenses and super telephoto lenses. A normal telephoto lens has a focal length close to that of a standard lens, while a super telephoto lens has a focal length that is much longer than a standard lens. Taking the 135 camera as an example, the photographic lens with a lens focal length from 85 mm to 300 mm is an ordinary telephoto lens, and the lens with a focal length of 300 mm or more is a super telephoto lens.
[0024] In the process of shooting distant objects, it is often found that the subject cannot be zoomed in. This requires the use of a telephoto lens, which can well express the details of distant scenes and capture some subjects that are...
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