描述了搜救器的工作原理和设计思路，设计了搜救器的硬件电路和软件程序。
It also describes the working theory and design method of the rescuer, and designs the hardware circuit and software of the rescuer.
设计了搜救器的软件，按照模块化编程思想设计了主控制器程序和触摸按键控制器程序。
As for software design, this paper designs the program of main controller and that of touch sense key controller from the perspective of modular design.
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