After the seal handle is released, the pressure spring will reset and the driving counting ring driven by the driving board will rotate further.

松开印把时，压力弹簧复位，驱动板再次通过驱动滑槽推动主动记数环继续转动。

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When the seal handle is pressed down, the pressure spring will be compressed, and the driving counting ring will be driven to rotate by the driving board.

压下印把时，压力弹簧被压缩，驱动板通过主动记数环上的驱动滑槽推动主动记数环转动。

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Its hardware is composed of DSP controlling board and motor driving board. There are two choices for the serial communication between the DSP board and the PC.

控制系统硬件部分由DS P控制板和电机驱动板组成，DS P控制板与上位机之间的串口通讯有无线和有线两种方式可以选择。

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