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Research On Intelligent Control Technology Based On The Fusion Of Visible Light Communication And WiFi

Posted on:2021-11-29Degree:MasterType:Thesis
Country:ChinaCandidate:Y JiaoFull Text:PDF
GTID:2518306557970319Subject:Electronics and Communications Engineering
Abstract/Summary:PDF Full Text Request
As we all know,traditional wireless communication systems use radio frequency/microwave signal transmission for communication.In indoor visible light communication systems,white LED light sources are commonly used to meet the needs of lighting and optical signal transmission.First,the optical transmitter modulates the data information to be sent,then loads the modulated data information into the white LED light source,and then uses the high-speed optical signal to send the data information to the receiver.Visible light communication can not only ensure the stability of indoor lighting,but also meet the requirements of indoor high-speed communication.At the same time,it has the advantages of rich spectrum resources,large bandwidth and low power consumption,Therefore,it is generally regarded as a new information transmission technology.The main contents of this article are as follows:This paper first analyzes the research background of short-range wireless communication technology,and briefly introduces the development of visible light short-range wireless communication technology at home and abroad.Combined with the knowledge of electronic information technology,the design of the whole optical two beam communication system and the design of optical transceiver and exchange are completed.Secondly,the transmission channel of the visible light communication system is analyzed,and MATLAB is used to model and simulate the influence of the internal lighting system on the illumination intensity distribution.Optical antenna technology is used to improve the sensitivity of the optical receiver,ensure that the optical receiver can receive and process long-distance signals,ZEMAX is used for simulation.Finally,the visual full-duplex communication system is used to generate a large number of output and input devices.In order to improve practicality and innovation,the combination of Bluetooth technology,voice interaction technology and knowledge control technology is studied.Among them,the Bluetooth module is the information source of the system,the smart home device is the output device of the system,and the smart terminal is controlled by the mobile phone or voice.The core of wireless transmission is visual communication.
Keywords/Search Tags:Intelligent control, Visible light communication, Modeling and simulation, Optical antenna, voice interaction
PDF Full Text Request
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