在区域控制单元中，分别介绍了处理单元、输入信号检测、看门狗电路、通信扩展的设计。
Also many design methods are put forward when introducing of the area part, such as processing unit, input signal detection, watch dog circuit, extended communication and so on.
该模型能实现信号转换、测量控制、数据分析处理、显示等功能，并采用“看门狗”提高了系统稳定性和抗干扰能力。
It can not only realize signal conversion, measure control, date analyze and display function, but also improve system stability and anti-jamming for using watch dog.
硬件上详细给出了系统主要功能模块的工作原理和设计内容，包括模拟信号输入电路、数字信号输入输出电路、看门狗及系统复位电路等。
On the hardware design we provide the operation principle of the main function module and design content in detail, including Analog Inputting, Digital Inputting and Outputting, Watchdog, etc.
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