iBeacon data format

Beacons通常使用广播频道，由beacon望文生义，他们每隔一段时间传输数据包，这些数据被设备像智能机接受，因此iBeacons是简单的低功耗蓝牙广播的特殊应用，iOS端加入了特别的支持。
你尝试拦截一个蓝牙广播包，例如来自于Estimote beacon，你将看到下列数据：
02 01 06 1A FF 4C 00 02 15 B9 40 7F 30 F5 F8 46 6E AF F9 25 55 6B 57 FE 6D 00 49 00 
(捕获这些数据，如果使用OSX，一个附加的下载包含一个蓝牙扫描和包日志)
以上数据已经有报文了，固定访问地址、广播PDU头和MAC地址被移除;它只有广播数据—30字节，因此它适应了31字节的限制。
什么使得蓝牙广播成为iBeacon？格式由苹果规定，分解如下：
02 01 06 1A FF 4C 00 02 15: iBeacon prefix (fixed) B9 40 7F 30 F5 F8 46 6E AF F9 25 55 6B 57 FE 6D: proximity UUID (here: Estimote’s fixed UUID) 00 49: major 00 0A: minor C5: 2’s complement of measured TX power 

时间： 2024-10-13 02:01:51

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