System communication positioning method adaptive to large-range mobile high-fidelity optical antenna
A system communication and optical antenna technology, applied in the field of indoor visible light communication positioning, can solve the problems of high design difficulty, high transmission bit error rate of optical communication equipment, large system working distance, etc., and achieve anti-interference ability to adapt to large-scale movement, Realize the effect of scheduling control performance and good light receiving ability
Pending Publication Date: 2021-12-28
SHANGHAI ELECTRICGROUP CORP
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[0005] Compared with wifi, bluetooth and other wireless technologies, visible light wireless communication has the advantages of no electromagnetic interference, energy saving, safety, etc., but at the same time, the communication performance of the optical receiving system in the actual environment will be greatly limited
For example, on the one hand, the background light interference of the outdoor channel environment is relatively strong, the transmission bit error rate of optical communication equipment in a moving state is high, and the superposition of channel and conditioning circuit noise seriously affects system performance; on the other hand, the traditional optical system has a large field of view. The structural design of large angle and large relative aperture is difficult, the number of required lenses is large and the working distance of the system is relatively large, which is extremely inconvenient for installation and debugging, and cannot satisfy some designs with short structural space and large viewing angle. Require
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[0035] The present invention will be further described below in conjunction with accompanying drawing.
[0036] see figure 1 , the network block diagram of the communication system of the present invention: it mainly includes an application layer, a link layer, and an optical communication layer. The link layer includes several communication controllers and several LED communication lights connected to each communication controller, and the optical communication layer includes several A mobile communication terminal, the receiving antenna is located in the optical communication layer mobile communication terminal, and the system algorithm of the present invention is located in the link layer network equipment communication controller.
[0037] The system algorithm of the invention includes: ID generation and distribution algorithm DTMF, MFSK modulation and demodulation, positioning switching algorithm, and time slot scheduling cooperation algorithm.
[0038] see figure 2 , ...
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The invention relates to a system communication positioning method adaptive to a large-range mobile high-fidelity optical antenna. A system comprises an application layer, a link layer and an optical communication layer, and the method comprises an ID generation and distribution step, an MFSK modulation and demodulation step, a positioning switching step and a time slot scheduling cooperation step. According to the system communication positioning method, the optical receiving antenna especially has the performance similar to that of an antenna in wireless communication, such as miniaturization, large view field, high gain, strong anti-interference capability and adaptation to large-range movement, so that the system performance of the visible light communication optical receiving antenna is further improved, and the scheduling control function of two-way communication of the AGV is realized.
Description
technical field [0001] The present invention relates to an indoor visible light communication positioning method, in particular to a visible light communication positioning method adapted to form an AGV large-scale mobile high-fidelity optical receiving antenna and an LED lamp network, that is, a scheduling control method for realizing two-way communication of the AGV. [0002] technical background [0003] As a new technology of wireless communication, visible light communication has the advantages of high single-point rate, large system capacity and high safety compared with electric wireless communication technology. [0004] This technology can be used in the confidential conference network system of the confidential unit, the lighting communication in the subway car, the wireless communication inside the satellite and the ship, the non-contact high-speed wireless communication between rocket separation, space capsule inside and outside, deep diving cabin and other equipme...
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IPC IPC(8): G01S5/16H04B10/116
CPCG01S5/16H04B10/116
Inventor 雷鹏贾廷纲王少波张玉龙王庆瑜黄云飞杨远航
Owner SHANGHAI ELECTRICGROUP CORP