Visible optical signal transmission control method, transmission control device and transmission equipment

A technology of signal transmission and control method, applied in the field of visible light communication, can solve the problems of low modulation bandwidth of white light LED, restricting visible light communication rate, etc., and achieve the effects of saving energy consumption, improving utilization rate, and wide modulation bandwidth

Active Publication Date: 2015-01-28
BEIJING ZHIGU RUI TUO TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The light source used in visible light communication is generally white LED, which is usually used for lighting. Based on the existing visible light modulation method, the modulation bandwidth of white light LED is low, which seriously restricts the improvement of visible light communication rate.

Method used

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  • Visible optical signal transmission control method, transmission control device and transmission equipment
  • Visible optical signal transmission control method, transmission control device and transmission equipment
  • Visible optical signal transmission control method, transmission control device and transmission equipment

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Embodiment Construction

[0020] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0021] Those skilled in the art can understand that terms such as "first" and "second" in this application are only used to distinguish different devices, modules or parameters, etc., and neither represent any specific technical meaning, nor an inevitable relationship between them. logical order.

[0022] In addition, in various embodiments of the present application, the “display device” is any device that has the function of presenting at least one image by using color-controllable color light signals mixed with multiple frequencies, for example, a display screen, a luminous advertisement cards, etc., and the interface of such a display device for presenting an image includes a plurality of ...

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Abstract

The embodiment of the application discloses a visible optical signal transmission control method, a transmission control device and transmission equipment. The method comprises the following steps of: confirming first transmission power of at least one to-be-transmitted information; displaying the display trait of at least one image at least according to the first transmission power and a display device, and confirming the partial pixel unit of the display device related to the to-be-transmitted information corresponding to the first transmission power; controlling to modulate the at least one to-be-transmitted information to the optical signal transmitted by the confirmed relative partial pixel unit. In the method and the device, the display device capable of emitting colorful visible optical signals with controllable color and multiple blended frequencies is used as one light source, so that the colorful visible optical signals are used as carrier optical signals to modulate the to-be-transmitted information so as to obtain a wider modulation bandwidth, at the same time, by the method and the device, the utilization rate of the resource is improved and the energy consumption of the display device is also saved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of visible light communication, and in particular, to a visible light signal emission control method, an emission control device, and a transmission device. Background technique [0002] Visible Light Communications (VLC) is a wireless optical communication technology that uses light in the visible light band as the carrier of information transmission, and uses the light source to emit high-speed bright and dark flickering light signals that are imperceptible to the naked eye to transmit information. The advantages of electromagnetic interference, no spectrum certification, and green environmental protection can effectively alleviate the problem of the exhaustion of radio spectrum resources, which has attracted more and more attention in recent years. [0003] The light source used in visible light communication is generally white light LED, which is usually used for illumination....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B10/50
Inventor 徐然
Owner BEIJING ZHIGU RUI TUO TECH
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