03-07-2010, 12:55 PM
please send me a seminar report on visible light communication.
03-07-2010, 12:55 PM
please send me a seminar report on visible light communication.
20-09-2010, 05:26 PM
More Info About visible light communication
Visible Light Communications (VLC) is a data communications medium using visible light between 400 THz (780 nm; 1 THz = 1000 GHz) and 800 THz (375 nm) (visible light is not injurious to vision). It uses fluorescent lamps (ordinary lamps, not special communications devices) to transmit signals at 10 kbit/s, or LEDs for up to 500 Mbit/s. Low rate data transmissions at 1 kilometre (0.6 mi) and 2 kilometres (1.2 mi) were demonstrated[1][2]. RONJA achieves full Ethernet speed (10 Mbit/s) over the same distance thanks to larger optics and more powerful LED. Specially designed electronic devices generally containing a photodiode[1] receive signals from such light sources although in some cases a cell phone camera or a digital camera will be sufficient.[3]. The image sensor used in these devices is in fact an array of photodiodes (pixels) and in some applications its use may be preferred over a single photodiode. Such sensor may provide either a multi-channel communication (down to 1 pixel = 1 channel) or a spatial awareness of multiple light sources.[1] This technology can be used as a communications medium for ubiquitous computing, because light-producing devices (such as indoor/outdoor lamps, TVs, traffic signs, commercial displays, car headlights/tail lamps[4] etc.) are used everywhere.[3] refered by http://en.wikipediawiki/Visible_Light_Communications
18-02-2011, 09:10 PM
please send me project report on visible light communication
02-07-2011, 07:47 AM
slide presentesionslide presentesion
06-02-2012, 11:17 AM
to get information about the topic Visible Light Communications full report ,ppt and related topic refer the link bellow
https://seminarproject.net/Thread-visibl...unications https://seminarproject.net/Thread-visibl...munication
03-03-2016, 07:38 AM
Sir, I am stuck at the reception part in visible light communication. How can we code such that the photodiode/phototransistor differentiate the information we send since it is receiving data continuously because the LEDs remain on for the lighting purpose otherwise.
18-03-2016, 09:24 AM
To get information about the topic “visible light communication” full report ppt and related topic refer the link below https://seminarproject.net/Thread-visibl...on--146487 |
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