| 摘要 |
Provided in the present invention are a clock synchronization method and device. The method comprises: acquiring, by a first site in a first network, a transmission time point of n predetermined data transmitted by a second site in a second network, wherein the n predetermined data is transmitted to the first site from the second site along the same transmission path, and n ≥ 1; and synchronizing, by the first site, a first local clock of the first site with a second local clock of the second site according to the transmission time point of the n predetermined data, receiving the time point of the n predetermined data received by the first site, and a time delay, wherein the time delay is a time delay of predetermined time delay test data transmitted from the second site to the first site along the transmission path. Thereby, the present invention addresses the following problems in the related art when synchronizing a master network clock and a slave network clock: high cost, complex networking, and low timing accuracy, achieving reduced clock synchronization cost, lower networking complexity and improved positioning accuracy. |
