Lighting light wireless communication system

Abstract

Being in use for illumination, and communication to remote communication equipment (RCE), the system includes illumination communication equipment (ICE), illumination communication terminal (ICT), and communication terminal (CT). Receiving source signal from RCE, ICT converts the received source signal to light signal transmitted wirelessly in light signal mode. Converting the received light signal to electric signal, ICT transfers the electric signal to CT. receiving the electric signal from ICT, CT carries out relevant process, or sends the processed electric signal to ICT, i.e. reverse transmission. Light sent from ICE / ICT can be as light source of light wireless communication or illuminated light sources. The invention overcomes prejudice that illumination light cannot be as carrier of wireless communication. The invention is suitable to indoor, and outdoor.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an illuminating light wireless communication system. Background technique [0002] There are three main types of wireless communication: [0003] One is radio wave communication, which has been used as a signal carrier for wireless communication for a long time and is still widely used today. weakness is: [0004] 1. Radio wave communication has strong electromagnetic interference, so the spectrum is controlled by the government; [0005] 2. The wireless bandwidth is low, and the available frequency resources are few; [0006] 3. Radio waves are open in space, and can usually pass through walls, which has poor security and confidentiality; [0007] 4. Wireless electromagnetic waves have biological electromagnetic effects, which have a certain degree of impact on human health; [0008] The other is laser wireless communication, the disadvantages are: [0009] 1...

AI Technical Summary

Problems solved by technology

[0004] 1. Radio wave communication has strong electromagnetic interference, so the spectrum is controlled by the government;

[0005] 2. The wireless bandwidth is low, and the available frequency resources are few;

[0006] 3. Radio waves are open in space, and can usually pass through walls, which has poor security and confidentiality;

[0007] 4. Wireless electromagnetic waves have biological electromagnetic effects, which have a certain degree of impact on human health;

[0009] 1. Due to the transmission characteristics of the atmosphere (absorption, reflection, scattering, and scintillation caused by the atmosphere), especially the influence of background radiation, it is usually not suitable to use lasers in the visible band;

[0010] 2. In indoor applications, the use of lasers needs to consider personal safety issues, mainly the damage to human eyes. Table 1 is the point laser safety standard formulated according to the total transmission power. It is difficult to have a good power budget for indoor use of lasers value;

[0011] 3. Complex technology and high cost

[0015] The disadvantage of infrared light wireless communication is that infrared light is in the invisible band and cannot be used as a lighting source

[0016] The light produced by light-emitting diodes (LEDs) is usually monochromatic or colored light. Although lights made of LEDs have many advantages such as small size, reliability, long life, low voltage, energy saving, and no pollution, they are usually only used for instrument indication, etc. , rarely used for daily lighting, for general lighting, people need a white light source

In addition, although LED lights can be used for wireless transmission, they are hardly used in actual production and life, because they are colored light, which will cause visual pollution

[0017] It can be seen that how to make illumination light a carrier of wireless communication is still blank.

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