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Light intensity signal transmitting device based on high-speed LED array

A technology of LED arrays and emitting devices, which is applied in the direction of lighting devices, electromagnetic emitters, components of lighting devices, etc., can solve the problems of low data transmission rate, space crosstalk, difficult to demodulate information, etc., and achieve the effect of increasing the transmission rate

Active Publication Date: 2021-06-18
BEIHANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In wireless optical communication, there are single-input single-output systems and multiple-input multiple-output systems. Although the former has the advantages of simplicity and ease, it is limited by the relatively low data transmission rate. Although the latter relaxes the strict alignment between the transmitting end and the receiving end Requirements, but there is a strong correlation between the spatial channels of the LED array, and there is a phenomenon of spatial crosstalk, which makes it difficult to demodulate the transmitted information

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  • Light intensity signal transmitting device based on high-speed LED array
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  • Light intensity signal transmitting device based on high-speed LED array

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[0022] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0024] In order to facilitate the understanding of the above-mentioned technical solution of the present invention, the above-mentioned technical solution of the present invention will be described in ...

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Abstract

The invention discloses a light intensity signal transmitting device based on a high-speed LED array, which comprises an LED array and a control board card; through a novel arrangement and driving mode, the LED array has a high-speed modulation characteristic and can transmit high-digit light intensity information at the switching speed of a single-point LED; the control board card performs high-speed display through gating the I / O port of the LED array, and is used as a light intensity signal transmitting end to transmit a light signal. According to the invention, on the premise that the switching rate of the LED array is ensured, multi-bit binary number transmission is realized, and the transmission rate is improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a light intensity signal transmitting device based on a high-speed LED array. Background technique [0002] LED has a high switching speed, and the display of LED array needs to balance between I / O port and switching speed in order to achieve the switching speed of LED. With the increase of LED resolution, the demand for I / O port will also increase. , although the conventional row / column scanning of LEDs can significantly reduce the demand for I / O ports, it will reduce the refresh rate of the LED array. [0003] In wireless optical communication, there are single-input single-output systems and multiple-input multiple-output systems. Although the former has the advantages of simplicity and ease, it is limited by the relatively low data transmission rate. Although the latter relaxes the strict alignment between the transmitting end and the receiving end ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50
CPCH04B10/502H04B10/516H04B10/114Y02B20/40F21Y2105/18F21Y2115/10F21V23/002H04B10/116H04B10/69
Inventor 孙鸣捷李奎君黄宏旭陈文李立京
Owner BEIHANG UNIV