A Self-tuning Algorithm for Switcher Faders
A switcher and self-tuning technology, applied in TV, color TV parts, TV system parts and other directions, can solve problems such as increased workload, unfavorable mass production, poor transition effect, etc., to ensure normal functions. Effect
Active Publication Date: 2022-02-18
BEIJING KXWELL TECH
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Problems solved by technology
[0004] The push rods used in the above-mentioned switchers are limited by production technology. Even for the same model, the electrical parameters of different individuals are not the same. In addition, the influence of the mechanical installation position cannot be ignored.
As a result, the directly installed faders may not be able to be used directly, and video switching may not be realized, and the effective switching stroke may be short resulting in poor transition effects, etc.
In actual use, it is often necessary to adjust the parameters of each device equipped with push rods, which increases the workload and is not conducive to mass production
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[0029] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.
[0030] The present invention provides such Figure 1-6 A switcher fader self-tuning algorithm shown includes an executive controller, the surface of the executive controller is provided with a display screen, knobs and bu...
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The present invention provides a push rod self-tuning algorithm for a switcher, which includes an executive controller. The surface of the executive controller is provided with a display screen, knobs and buttons. The number of the knobs is two, and the knobs can be rotated left and right. setting, and the buttons are divided into button 1 and button 2, the executive controller panel is provided with a push rod, the maximum angle at which the push rod is pushed upward is the upper limit of the stroke, and the maximum angle at which the push rod is pushed downward is the lower limit of the stroke , the angle between the upper stroke limit and the lower stroke limit is 76°. Through the self-tuning algorithm of the push rod provided by the present invention, the position of the push rod in the whole stroke can correspond to a certain progress in the switching process, and the smooth transition of the video switching screen can be realized, and at the same time, it can avoid the problem caused by the inability to reach the "start switching". " or "Complete switching" caused by switching loss, and can ensure the normal function of the actuator without additional equipment.
Description
technical field [0001] The invention relates to the technical field of broadcasting and television, in particular to a self-tuning algorithm of a fader for a switcher. Background technique [0002] In multi-camera studios or on-location productions, switchers are often used to switch video images, and the fader is one of the common switching tools. The smooth transition of different video images can be achieved by moving the slider from top to bottom. . [0003] Taking a push rod of a Hall sensor type as an example, its output voltage will change during the process of moving the push rod, and the current travel position of the push rod can be obtained by obtaining the output voltage. If the voltage value at the extreme position within its stroke range corresponds to the "start switching" and "complete switching" of the video screen switching progress of the switcher, and the voltage value within the range is linearly mapped to the specific switching progress value, it can p...
Claims
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IPC IPC(8): H04N5/268
CPCH04N5/268
Inventor谢先运叶茂林
OwnerBEIJING KXWELL TECH