mobile - 将蓝牙设备连接到未知设备

Question

是否可以将蓝牙设备连接到未知设备？我认为所有蓝牙设备都必须与另一个蓝牙设备配对才能一起使用。有人提到了一个可能的应用程序，其中蓝牙设备（很可能是 Windows Mobile 手机，因为 iPhone SDK不支持蓝牙连接）可用于读取给定区域的电表。我认为电话必须与每个仪表配对，然后才能进行任何其他通信。这个对吗？手机可以在配对之前从蓝牙提供商处接收任意数据吗？

Answer 1

You don't have to have security set up (no pin code) so you could have a bluetooth device that is always discoverable and will always connect/pair. So this could be used for the 'read a meter' type application.

Also, in Bluetooth 2.1, you have Extended Inquiry data so you could get the meter reading by having the meter encode the reading into the Extended Inquiry response. Then you don't even have to connect/pair. Just have a device that does an inquiry and gets the data that way.

There are some new standards coming for BlueTooth for Low Energy devices that would basically act like sensors, which are specifically targeted at this type of application.

There is more info then you could possibly want at www.bluetooth.org

Answer 2

如果您知道蓝牙设备的 MAC 地址并且可以连接，则可以直接与其通话。