在本设计中采用AT89C51作为系统的控制单元，元器件的选用上即满足设计需要又考虑到了成本问题。
This design use AT89C51 as the control unit in the system. Design requirement and cost problem are thought when choosing the components.
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.
在载车板控制单元中，分别介绍了主从机通信、输入信号检测、状态显示、手动功能以及电源的设计方法。
As to the loading board part, many design methods are introduced, such as master-slave communication, input signal detection, status displaying, manual action, power supply and so on.
该设计选用了两款合适的嵌入式处理器，在保证系统的性能和低功耗要求的同时，方便了系统的实现。整个设计分为监护控制单元、心电采集单元和除颤单元三个部分。
Two types of suitable embedded MCUs are used, which make the system realization easier, and the requirement of good performance and low power consumption is met as well.
该设计选用了两款合适的嵌入式处理器，在保证系统的性能和低功耗要求的同时，方便了系统的实现。整个设计分为监护控制单元、心电采集单元和除颤单元三个部分。
Two types of suitable embedded MCUs are used, which make the system realization easier, and the requirement of good performance and low power consumption is met as well.
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