采集转速并显示，显示工作时间，显示功率档位，存储时间和档位（掉电后不丢失）通过功率档位和转速计算功率大小调节功率输出-Acquisition speed and the display to show hours, show power stalls, storage time and stalls (not lost after power-down) through the power of computing power and speed stall size adjustable po