Indoor automatic dimming system matched with action of projector and dimming method thereof

An automatic dimming and projector technology, which is applied to the teaching aids, optics, instruments and other directions of electrical operation to achieve strong practicability, improve adjustment efficiency and save manpower.

Inactive Publication Date: 2015-12-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The survey found that there is no intelligent linkage system to solve this problem in the existing literature and patents

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  • Indoor automatic dimming system matched with action of projector and dimming method thereof
  • Indoor automatic dimming system matched with action of projector and dimming method thereof

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Embodiment Construction

[0010] The indoor automatic dimming system that cooperates with the action of the projector proposed by the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0011] The overall structure of the indoor automatic dimming system that cooperates with the projector action in the present invention is as follows: figure 1 shown.

[0012] The system of the present invention is arranged in the projection room of the projector, and the projection room is provided with a projector, a projection screen, a curtain, a stepping motor driving its opening and closing, and a lighting lamp; the system includes a single-chip microcomputer, a photoelectric gate, a Photosensitive sensor, limit sensor, stepper motor, relay, and power supply; among them, the photoelectric door is connected with the driving mechanism of the projection screen, the photosensitive sensor is installed on the indoor wall near the curtain, and the limit sens...

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Abstract

The invention relates to an indoor automatic dimming system matched with the action of a projector and a dimming method thereof, belonging to the technical field of automatic control. The system comprises a singlechip, and a photo-gate, a photosensitive sensor, a limit sensor, a step motor and a relay which are respectively connected with the singlechip, as well as a power supply, wherein the photo-gate is connected with a driving mechanism of a projector curtain, the photosensitive sensor is installed on an indoor wall nearby the curtain, the limit sensor is connected with the step motor for driving the curtain to open and close, and the singlechip is further connected with the relay of a lighting lamp. According to the method, when the singlechip senses falling of the projector curtain, the photosensitive sensor detects indoor light intensity; if the light is weak, a projector is suitable for being used, otherwise, the projector is not used; and if the light is strong, the front row of lamp is turned off and the step motor is driven to close the curtain, so that the indoor light is weak. The system and the method can realize intelligent linkage between the indoor brightness and the projector, effectively reduce manpower and improve the efficiency. The system is a practical system with strong comprehensiveness.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a single-chip microcomputer to control indoor lights and curtains, so that the indoor brightness cooperates with a projector to realize intelligent linkage and achieve the effect of saving manpower. Background technique [0002] As a kind of micro-controller, single-chip microcomputer has gradually become the first choice for implementing intelligent control due to its low power consumption, strong control function and convenient use. The combination of single-chip microcomputer and multimedia technology can bring a lot of convenience to the intelligent control and management of multimedia. At present, most multimedia classrooms or laboratories are equipped with projectors, which provide teachers with more convenience in information dissemination. Therefore, how to use single-chip microcomputer to further improve the automation level of multimedia environme...

Claims

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Application Information

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IPC IPC(8): G03B21/54G09B5/02
Inventor 李臻赵伟姚勇
Owner TSINGHUA UNIV
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