Big dipper satellite-based high-precision time service method and device considering receiver time variation deviation

The invention provides a Beidou satellite-based high-precision time service method and a Beidou satellite-based high-precision time service device considering receiver time variation deviation. Observation data and broadcast data are utilized to carry out precision data recovery to obtain a real-time precision orbit and a real-time precision satellite clock error of a Beidou satellite; then establishing a PPP time service model considering the receiver time-varying deviation, and outputting the receiver clock error of the current epoch by using the PPP time service model; performing anomaly detection on the receiver clock error of the current epoch, and finally outputting the receiver clock error of the current epoch; a clock control method is utilized to regulate and control a crystal oscillator in real time, and a signal output by the crystal oscillator is input to a receiver, so that the receiver outputs UTC time and a 1PPS signal. Compared with the prior art, the real-time PPP time service does not depend