プロ用調光のDIMTEC,ディムテック,DIMMING TECHNOLOGY CO., LTD. ,led


Next generation wireless dimming system “ DimBee”

Various wireless system

Wi-Fi

Advantage
・Easy wiring layout
・Moving the terminal does not require rewiring
Disadvantage
・Communication content way be known by interception of radio waves and infrared rays
・Communication speed way be slowed down or shut down depending on the situation

Bluetooth

outline
・Made for short distance
・Basic concept is power consomption low price,high speed 
・Security advantages from communication encryption and FHSS mechanism
 

ZigBee 

outline
About a physical layer , IEEE was standardized as 802.15. 4.
About on a profit theory stratum, it is ZigBee.Alliance is doing a specification settle.
Transmission distance
A maximum of about 100 m
※ ZigBee is the wireless communication standard that suited wireless sensor network building in the low cost, low power
consumption.
It belongs to wireless PAN ( Personal Area Network ) such as Bluetooth and UWB.
Still more, ZigBee is ZigBee.It is the brand of Aliance and is ZigBee.By Alliance
Only an authorized product can call oneself ZigBee.Therefore, because it was merely only based on IEEE 802.15.4,
it isn't ZigBee.

About Sub-GHz (920 MHz)

Wireless in a 920 MHz zone
A 2.4 GHz zone and also newly 920 MHz zone was allocated from July 25th, 2012 as a ISM band, and it became possible to use it in Japan.
With a ISM band, the license is unnecessary in the frequency band allocated for an use for the industry, science and medical treatment in the abbreviation of Industrial, Scientific and Medical Band in a master, and it is possible to use it.
   

It follows 2.4 GHz vs 920MHz.