QUARTZ ELECTRONIC WATCH HIGH-PRECISION TIMEKEEPING METHOD

摘要

A quartz electronic watch high-precision timekeeping method comprising: S11: pre-setting a correspondence between frequency accuracy of a quartz crystal oscillator and environmental temperatures, and pre-setting a time difference compensating period; S12: collecting a environmental temperature at the end of the time difference compensating period, and computing the average value of the environmental temperature and the environmental temperature measured at the end of former time difference compensating period as the average temperature value in the present time difference compensating period; S13: according to the correspondence between frequency accuracy of the quartz crystal oscillator and the environmental temperature and the average temperature value computed in step S12, the actual oscillation frequency accuracy of the quartz crystal oscillator in the corresponding time difference compensating period being obtained; S14: according to the actual oscillation frequency accuracy of the quartz crystal and the time value of the time difference compensating period, the timekeeping error of the quartz crystal oscillator being obtained; S15: the timekeeping of the timekeeping circuit of quartz electronic watch being compensated according to the timekeeping error. The small error occurs between the time and the standard time. A quartz electronic watch using the method.