無線ZigBee智能能源鑰匙轉換

　　雖然許多人認為交流電網是最普遍的數據網絡，但電力線網絡尚未廣泛成功。現在，配電部門正在考慮在電表和能源消費品（如家用電器）中增加智能，他們需要一種無處不在的通信方案來實現智能電網。看來，ZigBee智能能源標準將是答案，無線通道將是一個關鍵，雖然新的智能能源協議可能最終運行在多種網絡類型之上。

　　Figure 1： The GE GeoSpring Hybrid Water Heater， the first ZigBee Energy-certified appliance， offers energy-saving heat-pump technology as well.

　　ZigBee began as a low-power standard for wireless personal-area networks. It is based on the IEEE 802.15.4 standard and promulgated by the ZigBee Alliance （www.ZigBee.org）。 The mesh-networking-capable technology targets home automation and industrial networks.

　　The ZigBee Alliance has essentially completed the ZigBee Smart Energy Version 2.0 specification. The Version 2.0 spec is at the 0.9 draft level， and the ZigBee Alliance is no longer accepting public comments. ZigBee Smart Energy is poised to be the de facto standard for home-area networks （HANs）。 The standard is based on the Internet Protocol （IP）， and the ZigBee Alliance has developed the standard with input from other organizations， including NIST （National Institute of Standards and Technology）， the HomePlug Powerline Alliance， the Wi-Fi Alliance， and others.