A multi-level time synchronization method and system based on a private network

Abstract

The application relates to a multi-level time synchronization method and system based on a private network, and belongs to the technical field of private network time synchronization, and solves the technical problem that a private network cannot realize high-precision synchronization with an external standard time source. A customized base station obtains standard time from an external network standard time time center to obtain trusted time; a private network mobile terminal establishes connection with the customized base station and obtains the trusted time; the private network mobile terminal reports the trusted time to a multi-level time synchronization system in the private network; wherein the multi-level time synchronization system comprises a main time server and multiple secondary time servers, each secondary time server corresponds to at least one service node; the main time server verifies whether to update synchronization based on the obtained trusted time, if the verification is successful, the multi-level time synchronization system is subjected to trusted time synchronization; otherwise, no synchronization is performed. High-precision synchronization of servers and service nodes in the private network with an external standard time is realized.

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