介绍了串口编程技术，RS485总线驱动模式和RS485串口驱动程序。 然后在此基础上设计和实现了SDM300远程控制模块和异步信道的通信模块。

Findally, we implement SDM300 remote control module and Async communication module on the basis of introducing technology of serial programming , RS485 bus driving mode and RS485 serial driver.

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本论文主要是对远程水声通信的信道编码技术进行研究。

In thesis, the channel coding technique suitable for long range underwater communication is researched.

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本系统还运用电力载波通信芯片(将信道改为电话线路)实现了数据远程通信。

This system use electric power carrier wave communication chips, the channels between which are changed to telephone lines, to realize the long-distance communication of data.

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