zigbee学习笔记（一）

ZigBee无线网络技术简介以及系统组成

ZigBee技术的由来

在《System Engineering for IMS Networks》一书中，作者提到了这么一段话：

Before I delve into ZigBee in detail, I’d like to address one
question that seems to come up every time I speak about ZigBee in
public. Where did the name ZigBee come from?
在我深入钻研ZigBee之前，我想先回答一个问题，这个问题似乎每次我在公开场合谈到ZigBee时都会出现。ZigBee这个名字从何而来?
Well, the way I first heard it was at the ZigBee Open House in Seattle, back in 2004.This story was told during a time when ZigBee
was often confused with Bluetooth™. Just so you don’t confuse the two:
Bluetooth™ is great at point-to-point (as seen in many headsets and
cell phones). ZigBee is great at wireless control, where anywhere from
two to thousands of nodes are all connected together, in multi-hop
mesh network.
嗯，我第一次听说它是在2004年西雅图的ZigBee开放之家。 这个故事发生在ZigBee经常与蓝牙™混淆的时期。这样您就不会将二者混淆了:蓝牙™在点对点(正如在许多耳机和手机中看到的那样)方面非常出色。ZigBee擅长于无线控制，在多跳网状网络中，从2个到数千个节点都被连接在一起。
Bob Heile, Chairman of the ZigBee Alliance explained the origin of ZigBee something like this: A Norwegian legend speaks of a
little troll by the name of ZigBee, who lived in the village of Vik
far inland on the fjord of Sogn. Now, Norwegian trolls aren’t the big,
nasty and smelly, hard-as-rock variety often told of in other tales,
at least not always. ZigBee wasa kindly, quiet little troll, who
didn’t speak much, but when he did speak it was always reliable. A
person could count on ZigBee.
ZigBee联盟主席Bob Heile这样解释ZigBee的起源: 一个挪威传说谈到一个名叫ZigBee的小巨魔，他住在遥远的内陆索贡峡湾的维克村。现在，挪威的巨怪已经不再是其他故事中经常提到的那种又大又臭、硬如岩石的怪物了，至少不总是这样。无线个域网是他是一个和蔼、安静的小巨怪，不爱说话，但一旦开口说话，他总是可靠的。人们可以依靠ZigBee。

One time, ZigBee ……from drowning.
有一次，齐格比感觉到谷仓旁一堆正在腐烂的干草太热了，开始闷烧起来。ZigBee很快就拉响了警报，在谷仓被烧毁之前，村民们把火扑灭了。……还有一次，ZigBee拯救了整个维克村。我是这样听到的。一位名叫哈罗德·蓝芽(Haarold
Bluetooth)的当地村民，远远地站在积雪覆盖的山顶上，在早春的时候，他在山上放羊。那年是一个温暖的春天，在经历了一个特别艰难的冬天之后。牧羊人蓝牙带着他的羊群来到一条他熟悉的小溪，但今年他无法接近它。蒸汽已经变成了洪水泛滥的河流从迅速融化的雪。蓝牙