Projector horizontal deviation angle calibration device and method based on distance detection
A technology of distance detection and offset angle, applied in the field of projector horizontal offset calibration, can solve problems such as poor projection image effect and projector angle offset, and achieve the effect of improving the projection effect
Inactive Publication Date: 2021-03-26
安徽文香信息技术有限公司
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[0003] When the projector is actually used, the projected image projected on the projection screen will have a left-right offset. This is because the projector has an angular offset in the horizontal direction, resulting in a poor projected image effect.
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0041] see Figure 1-5 As shown, the present invention is a calibration device for horizontal offset angle of a projector based on distance detection, including: a boom 1, an installation box 2, a projector 3 and calibration equipment; a circular installation groove 11 is provided at the bottom of the boom 1 coaxially; The forward and reverse servo motor 12 is installed on the top of the circular installation groove 11; the output end of the forward and reverse ser...
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The invention discloses a projector horizontal deviation angle calibration device and method based on distance detection, and relates to the technical field of projector horizontal deviation calibration. The device comprises a hanging rod, a mounting box, a projector and calibration equipment. The calibration equipment comprises a control panel, a positive and negative rotation servo motor, a first distance sensor and a second distance sensor. A first distance L1 and a second distance L2 away from a projection curtain are detected through the first distance sensor and the second distance sensor respectively and transmitted to a microprocessor; the microprocessor analyzes a horizontal adjustment angle C and the horizontal rotation direction according to the distance L between the sensors, the first distance L1 and the second distance L2 after the calibration straight line is not parallel to the projection curtain; the positive and negative rotation servo motor is controlled to rotate according to the horizontal adjustment angle C and the horizontal rotation direction; and whether horizontal projection of the projector deviates or not can be conveniently detected, horizontal deviation calibration of the projector is conveniently achieved, and the projection effect of the projector is improved.
Description
technical field [0001] The invention belongs to the technical field of projector horizontal offset calibration, and in particular relates to a distance detection-based projector horizontal offset angle calibration device and method. Background technique [0002] As the Internet of Things and smart devices are widely used in various fields, the teaching field also generally uses various smart teaching devices to improve teaching efficiency. In smart classrooms, various smart devices are used to improve teaching efficiency; existing smart teaching devices include multimedia, smart electronic blackboards, and projectors. [0003] When the projector is actually used, the projected image projected on the projection screen will have a left-right offset. This is because the projector has an angular offset in the horizontal direction, resulting in a poor projected image effect. [0004] In order to solve the above problems, the present invention provides a device and method for cal...
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IPC IPC(8): G03B21/54G01B21/22F16M13/02F16M11/08F16M11/18
CPCF16M11/08F16M11/18F16M13/02G01B21/22G03B21/54
Inventor 朱玉荣汤鹏飞
Owner 安徽文香信息技术有限公司