Field buses are digital networks that provide an efficient digital serial data exchange among one or more controllers and a number of field devices.
现场总线是，提供一个有效的数字串行数据交换中的一个或多个控制器和现场设备的数量数字网络。
PC and DSP can exchange data each other through RS-232C serial communication.
上下位机之间通过RS-232C串行通讯交换数据。
Experiment results show that exchange control can be realized through the collection of serial data of the handwritten input equipment and the communication radio.
实验结果表明，可以通过采集手写输入设备和通信电台的串行数据信息，实现交换控制的功能。
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