Clock synchronization method, wireless node type seismic signal acquisition system and method

Abstract

The invention discloses a clock synchronization method and a wireless node type seismic signal acquisition system and method. The wireless node type seismic signal acquisition system comprises a ground data center, a ground clock server, one or more UWB base stations, one or more 5G base stations and a plurality of acquisition substations. Real-time positioning, clock synchronization and state information transmission of an acquisition substation are realized by adopting a low-power-consumption communication module, the low-power-consumption communication module and a UWB base station communicate by adopting wireless signals, and due to the high-frequency narrow-pulse-width characteristic of the UWB wireless signals, the clock synchronization precision can reach a microsecond level, errors can be corrected, and the synchronization precision can be improved; the acquisition substation adopts a low-power-consumption communication module with extremely low power consumption to carry out time synchronization, positioning and substation state information transmission, so that normal work of the acquisition substation can be ensured, and meanwhile, a high-speed communication module is adopted to periodically open and return seismic data in a short time according to a set time, so that the underground excavation speed is ensured; the technical problem that an existing wired seismic acquisition system is tedious in structure and not beneficial to tunneling efficiency is solved.

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