控制系统由上位机、中继单元和模块单元构成。
在硬件的基础上设计了包括上位机、中继单元和模块单元在内的软件系统。
And then the software system which includes master, relay unit and module unit was designed on the basis of hardware.
上位机和中继单元之间采用串行口通信，中继单元和模块单元之间采用无线网路进行通信。
The master communicates with the relay unit by serial communication interface and the relay unit communicates with module unit by wireless communication network.
每个中继器都配备了一主电源的1.9米电缆供电单元。
Every repeater unit is supplied with a mains power supply unit with a 1.9 metre cable.
每个中继器都配备了一主电源的1.9米电缆供电单元。
Every repeater unit is supplied with a mains power supply unit with a 1.9 metre cable.
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