Intelligent control method based on portable projection equipment
A projection device and intelligent control technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of affecting the effect of meetings or speeches, missing important content, and unable to explain the projected content, so as to improve the user experience Effect
Active Publication Date: 2019-05-14
合肥凌极西雅电子科技有限公司
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Problems solved by technology
[0003] In the actual projection process, when an audience or staff passes or stays in front of the projection area (wall, projection screen), because the person's body blocks the projection light, a black shadow will be generated in the projection area, which will affect the audience's perception of the projection area. Watching the projected content may even miss some important content, so that the meaning expressed by the speaker cannot be correctly understood in the future. Repeated explanations of the projected content will seriously affect the effect of meetings or speeches
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[0025] refer to figure 1 , an intelligent control method based on a portable projection device proposed by the present invention includes:
[0026] During the process of connecting the playback terminal to the projection device and projecting to the projection area through the projection device, it is detected whether there is a shadow in the projection area.
[0027] In this step, measuring whether there is a shadow in the projection area includes: acquiring the image of the projection area; acquiring the RGB value of each pixel in the image of the projection area; When the number in the RGB value interval is greater than the preset first number threshold, it is determined that there is a shadow in the projection area.
[0028] In the specific scheme, when an audience or staff passes or stays in front of the projection area (wall, projection screen), since the human body blocks the projection light, a black shadow will be generated in the projection area, and the RGB value o...
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The invention discloses an intelligent control method based on portable projection equipment, and the method comprises the steps: detecting whether a person shadow exists in a projection area or not in the process that a playing terminal is connected with the projection equipment and projects the projection equipment to the projection area through the projection equipment; when it is detected thata person shadow exists in the projection area, the person shadow area is obtained, and counting the duration of the person shadow in the projection area; judging whether the projection area is shielded or not according to the human image area and the human image duration in the projection area; when it is judged that the projection area is shielded; and controlling the playing terminal to play back. In this way, the area of a person image appearing in the projection area and the duration of the person image appearing are monitored in real time; The method comprises the steps of obtaining a projection area of a speaker to judge whether the projection area is shielded or not, then controlling the playing terminal to play back the shielded content, and / or sending a message prompt to the playing terminal operated by the speaker so as to remind the speaker to play back manually, thereby facilitating audiences to see the shielded projection content again.
Description
technical field [0001] The present invention relates to the technical field of projection control, in particular to an intelligent control method based on a portable projection device. Background technique [0002] Portable projection devices are widely used in various occasions because they are easy to carry and can produce larger projection images than traditional liquid crystal displays. Portable projection equipment mainly includes projectors, which are generally placed on a desktop and projected onto a wall or projection screen. [0003] In the actual projection process, when an audience or staff passes or stays in front of the projection area (wall, projection screen), since the human body blocks the projection light, a black shadow will be generated in the projection area, which will affect the audience's perception of Watching the projected content may even miss some important content, so that the speaker cannot correctly understand the meaning expressed by the spea...
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IPC IPC(8): H04N21/41H04N21/422H04N21/442H04N21/472
Inventor 胡玮
Owner 合肥凌极西雅电子科技有限公司