I tried experiencing "visible light communication" that can receive data simply by holding the smartphone over the lighting

Data is exchanged using light emitted by lighting instead of radio wavesVisible light communication". The system which made it possible to utilize this technology which is used for communication such as a substation, a tunnel, an underwater, etc. where radio wave communication can not be used on a smartphone is "Wireless Technology Park 2012Since it was exhibited in ", I actually checked the comfort by communicating.

The appearance of the booth looks like this.


I am exhibitingOutstanding technologyCompany called.


Terminals assumed to be used at substations, etc. are as follows. Connect the Ethernet cable to this box and use it.


With such a feeling that by using boxes in which lights and receivers are set face to face, it is possible to communicate up to 160 Mbps between terminals that are about 1 meter apart.


The following products have applied the technology visible light communication technology to smartphones.


All you need is a small light receiver.


Just put it in the earphone jack of the smartphone OK.


Lighting corresponding to the terminal that transmits data is like this, and data is sent by changing the light intensity or blinking at a speed that can not be recognized by human eyes.


To receive data just launch a special application and hold it under lighting. In the picture, I am tilting toward the front to make the smartphone easier to see, but actually we will use the receiver facing the lighting.


Please check below for movies that clearly understand the time required to switch screens. In the demo below, images are only switched, but when actually using it at a store or the like, it is possible to display images, movies, etc., and start various methods of use such as starting voice guidance.

Keeping the smartphone under the light and receiving the data Visible light communication looks something like this - YouTube


What kind of places are actually being used? It is as follows. It is thought to use such a way that a guide is displayed on a smartphone when a user reaches a specific place (under the light) at a museum or the like.


In a gimmick event like allowing only participants to download data, it is possible to increase the production effect by using light. Certainly, it may be a bit of an exciting experience to download data if you point the smartphone to the light that is shone and shine.


Moreover, it seems that it can be used for advertisement distribution etc. in a commercial store.


Although the schedule of practical use is undecided, it is a level that it is enough to put in practical war even now even now with the crisp still moving even in the present situation, so you may be able to see you somewhere before it is not far .