Optical wireless communication

What is TAIYO YUDEN's Optical Wireless Communication?

Rapid proliferation of IoT, in which all things are connected to the Internet, is increasing the frequency of wireless communication via radio waves as well as wired communication. Moreover, need for communication that cannot be covered by conventional wired or wireless communication is growing exponentially.
TAIYO YUDEN's optical wireless communication is a point-to-point wireless communication that provides stable speed (100 Mbps) using light. Since radio waves are not employed, interference or noise is not an issue, allowing wireless communications in areas where radio wave communications are difficult to be established. This technology is best suitable for wireless communications for surveillance cameras.

Product introduction video



Four features of optical wireless communication

Allows communication in areas that are unsuitable for wired communications

Communication can be easily established over a river or between buildings facing each other across a road.
Scenery (near tourist facilities or in areas where cables are laid under roads) can be well-preserved.

Allows communication in areas that are unsuitable for wired communications
   

No interference from radio waves. No effect from electromagnetic noise.

No interference of communications by radio waves.
Since communication is not affected by electromagnetic noise, wireless communication in a plant can be established.

No interference from radio waves. No effect from electromagnetic noise.
   

The Radio Law does not apply. No communication fee.

The Radio Law does not apply.
A communication service contract with a carrier and communication costs are not required.

The Radio Law does not apply. No communication fee.
   

Relocatability contributes to cost reduction.

Wireless communication can be easily established in exhibition and event venues.
The optical axis can be adjusted in about 15 minutes.
The set-up time can be greatly reduced.

Relocatability contributes to cost reduction.


Applications



Other applications

Communication between circuit boards (in ATMs) or switchboards

Communication between circuit boards (in ATMs) or switchboards

 

Communication between circuit boards and switchboards in ATMs and electric facilities usually use cables, and increasing their number places a great burden on their connections and maintenance.
TAIYO YUDEN's optical wireless communication enables wireless communication with minimal risk of crosstalk and information leakage.

     

Industrial robot

Industrial robot  

・ Substitution of wiring around moving parts

・ Communication within areas where robots are working

・ Substitution of wiring for many sensors on moving parts

     

Underwater communication

Underwater communication

 

Since radio waves do not propagate under water, sound wave communication has primarily been used for underwater communication; however, by using general-purpose blue LEDs, which have a low absorption coefficient under water, we have achieved optical wireless communication at a speed of up to 50 Mbps under water.


This technology is suitable especially for underwater shooting by broadcasting stations, ocean development and offshore exploration, and other applications in which high-definition video data is transmitted in real time.



Comparison with other communication methods

 

  Wired Wireless radio Optical
Topology One to one One to N One to one
Speed Good (Constant) Bad (Variable) Good (Constant)
Installation costs Bad (The longer, the higher) Good (Low) Good (Low)
Crosstalk/interference Average (Affected) Bad (Crosstalk) Good (Not affected)
Scenery preservation Bad (Difficult) Good (Easy) Good (Easy)
Radio law Good (Not governed) Bad (Governed) Good (Not governed)
Installation Bad (Troublesome) Good (Easy) Good (Easy)
Security Good (Secured) Bad (Some issues) Good (Secured)
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