Multithreaded software kernel-based photoelectric remote control system
A remote control system and multi-thread technology, applied in the field of human-computer interaction, can solve the problems of high cost, complicated operation, troublesome installation, etc., and achieve the effect of convenient speech and low hardware cost
Inactive Publication Date: 2013-01-30
陈晓帅
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Problems solved by technology
For example, the Daxing (ASiNG) M618 digital ink multifunctional laser pointer that appeared on the market can realize the function of drawing lines. The problem is that it does not realize the one-to-one correspondence between the laser spot and the mouse position
[0003] Patent CN200810243107.3 discloses an infrared laser pointer remote pointing virtual touch system, although it can realize the one-to-one correspondence between the laser spot and the projection screen, what it uses is an infrared laser pointer, which is used with two cameras, which is troublesome to install and relatively expensive. High; Patent CN201120111121.5 discloses a mouse control device based on a mouse laser pointer, which uses a video capture card, and the cost is relatively high
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[0018] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:
[0019] The present invention is made up of mouse 1 with left and right button functions, laser emitter 2, projection screen 3;
[0020] The system is mainly used in conjunction with classrooms and meeting rooms with fixed projectors. Before use, the camera needs to be fixed at a suitable position near the projector and adjusted so that the field of view of the camera completely covers the effective projection area of the projection screen, and then the video signal output is connected to the main control computer. When the software is opened, the software will be minimized to the task bar of the display screen, and a dialog box will appear in the upper right corner of the display screen. When the dialog box is clicked, the software will run. The laser emitter emits laser light onto the projection screen, and the camera with a filter in front will captur...
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The invention discloses a multithreaded software kernel-based photoelectric remote control system and belongs to the technical field of man-machine interaction. The system consists of a laser pen with a mouse function, a multimedia system and an image reception recognition processing system, wherein the laser pen with the mouse function is formed by arranging a laser transmitter on the top of a mouse with the left and right key functions; the multimedia system comprises a computer main body, a projector and a projection screen; and an image acquisition processing system captures video streaming through which a laser spot is conveniently recognized and the projection screen is totally accommodated in a viewing range through a camera, a video signal on the projection screen captured by the camera is subjected to real time processing and is analyzed, so that the position of the laser spot is acquired, and the laser spot and the mouse on the projection screen are coincided in real time. Therefore, the key function of a common mouse is realized through a wireless mouse with the left and right key functions, and common demonstration functions such as digital ink on the projection screen are realized by utilizing software obtained based on multithread programming.
Description
technical field [0001] The invention belongs to the technical field of human-computer interaction, and in particular relates to a photoelectric remote control system based on a multi-threaded software kernel. Background technique [0002] At present, with the development of computer technology and multimedia technology, multimedia teaching has gradually become the mainstream by virtue of its own advantages. In order to improve the utilization rate of multimedia teaching, people invented a multifunctional laser pointer. For example, the Daxing (ASiNG) M618 digital ink multifunctional laser pointer that appeared on the market can realize the function of drawing lines. The problem is that it does not realize the one-to-one correspondence between the laser spot and the mouse position. [0003] Patent CN200810243107.3 discloses an infrared laser pointer remote pointing virtual touch system, although it can realize the one-to-one correspondence between the laser spot and the pro...
Claims
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IPC IPC(8): G06F3/0354
Inventor 陈晓帅黄仙山莫绪涛
Owner 陈晓帅
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