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The IEEE 1902.1-2009 standard is a wireless data communication protocol that operates within the Low Frequency radio wave range of 30–300 kHz. Although very resistant to interference, metal, water and obstacles, it is very limited in range, usually only suitable for short-range networks. The baud rate is limited to 1 kB/s, making it a very low-rate communication network as well. This standard is aimed at the conception of wireless network of sensors and actuators in industrial and military environments. The IEEE 1902.1 is an alternative to other low-power wireless network of sensors and actuators based on the standard IEEE 802.15.4, such as ZigBee and 6LoWPAN. Other concurrent standards also exist: ISO/IEC 18000-7 DASH7, infrared networking and ultra-wide band networking. IEEE 1902.1 is unique as it uses a very low frequency and magnetic field modulation (created by a magnetic dipole antenna in the near-field) as the physical mean. The IEEE Working Group on 1902.1 named itself RuBee, after the gem and insect. RuBee stands in contrast to the well-known network certification ZigBee, a related but completely different networking standard. == Network devices == IEEE 1902.1 supports the design of networks constituted by two devices: Controllers and Responders, based on a simplified IEEE MAC data layer. The Controller initiates a command request and the Responder detects the request, processes some functions like measuring pressure, temperature or activating a relay, before sending a Response packet back to the Controller. Responder devices have four addresses, two of them configurable, and two by fabric design. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IEEE 1902.1」の詳細全文を読む スポンサード リンク
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