Narrow space is usually a small space, more obstacles, the camera movement has some limitations.
In traditional photography, the photographer takes pictures with the track and Stan Nikon. Orbital motion relative to the fixed line, steadicam is more flexible, but limited to the shooting angle, shooting from the ground to the ground about 2 meters from the camera. In contrast, the UAV can fly to a higher position shooting, but also has the characteristics of flexible mobility.
So, in the narrow space of obstacles, how to ensure flight safety?
Narrow space, unmanned aerial vehicle flight environment obstacles. In order to ensure flight safety, the need to keep the UAV flying in the vicinity of the line of sight in order to observe the flight situation.
Arrange observers, unified team password
If the UAV flight distance, flight or hand position is not easy to judge the UAV and the distance of the obstacle due to observer UAV location, using wireless calls to inform the UAV flying hand range, to ensure flight safety.
Dajiang media team in the actual shooting, observers and flying hand to communicate the direction of the aircraft movement, there are two sets of standardized team password. Typically, the observer will follow the direction of the nose before and after the declaration, such as "forward! (front of the nose) to the left! (the head of the left), if the environment features clear, will be in accordance with the main command or direction words, such as "near the main body! 1 meters north!"
When the UAV is close to the obstacle nearby, observers will continue to declare the direction of movement of the aircraft, and inform the remaining distance, in case of collision, until the UAVposition.
GPS signal is weak, the use of visual system positioning
In high-rise or indoor flight, GPS signal is weak, the UAV can not locate. If the shooting site is light enough, we can give priority to the positioning of the visual system, compared to the attitude model, the visual system positioning flight more stable. It should be noted, however, that the visual system has a limited altitude of 8 meters.
In the narrow space shooting, the scope of UAV movement is limited, so how to follow the movement of the main body?
Early rehearsal, with the main body with good speed
Due to the narrow space, the UAV is often closer to the subject to be photographed in the close range with the main body of the camera movement, the speed is inconsistent or can not change the direction of flight in time may lead to the main picture.
Shooting team to advance understanding of the main body of the movement of the route, with the design of the course, with the main body with good movement speed and rhythm, to ensure that the main body in the picture. If you shoot a complex long lens, you can preview, will be divided into a number of long shots into the camera, flying hand drill flight segment.
Low speed, precise control of the small rod
When the main moving speed is slow, the precise control of the UAV flying low speed with the camera is very difficult, because it is difficult to accurately control a small rod.
In this case, the Inspire 2 triangle model has a significant advantage, when the rod is pushed to a great extent, the UAV flight speed is still very slow, is conducive to the operation of the fly.
Through high speed, the distance between the hand and the UAV is relatively consistent
When in the narrow space with the car, motorcycle and other fast moving body, in order to ensure flight safety, in addition to the first observation of obstacles, but also to determine the flight height and line. Flying hand usually in another car, follow the UAV movement, and unmanned aerial vehicles to maintain a relatively consistent distance, so as not to produce sight difference.
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