交换技术有两种基本类型：电路交换和报文交换。

There are two basic types of switching techniques: circuit switching and message switching.

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由于采用了基于事件的报文交换方式，使得 楼宇控制器之间以较小流量占用而获得信息的快速交换，保证了控制的实时 性。

Thanks to the event based packet exchange, the information exchange is quick with small flow rate occupation between the BA controllers, which guarantees the real time capability of the control.

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由于采用了基于事件的报文交换方式，使得 楼宇控制器之间以较小流量占用而获得信息的快速交换，保证了控制的实时 性。

Thanks to the event based packet exchange, the information exchange is quick with small flow rate occupation between the BA controllers, which guarantees the real time capability of the control.

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