As for hardware design, this paper designs main controller board, OLED display board and touch sense key controller board of the rescuer.

设计了搜救器的硬件，包括搜救器的主控制板、OLED显示板和触摸按键控制板。

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A printing layer is arranged on one face of the touch-sensitive panel towards the circuit board and printed with corresponding key-press positions.

一印刷层， 设置于该触控式面板与该电路板相对面的对应表面，并印刷有相应的按键位置；

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