Efficient wireless seismic data transmission protocol design method based on LoRaWAN

Abstract

The invention discloses an efficient wireless seismic data transmission protocol design method based on LoRaWAN. The method comprises spread spectrum factor distribution based on a transmission weightand transmission time sequence distribution based on a hash function; the spread spectrum factor distribution is characterized in that a coarse-grained adjustment spread spectrum factor is adopted ata seismograph terminal, a gateway performs fine-grained adjustment by referring to the primary distribution result of the seismograph terminal to realize collision weight balance of channels with different spreading factors; and the transmission time sequence distribution is characterized in that according to the built-in GPS high-precision time service of the seismograph, hash function mapping is used for endowing the seismograph with a sending time sequence, uncertain collision is converted into deterministic collision, and large-scale and reliable wireless seismic data transmission networkconstruction is achieved. The method has the advantages that through the technical scheme, the network capacity can be effectively expanded, the data extraction rate of the network is improved, and the problems of data conflicts and network delay existing in a traditional method can be solved.

Description

technical field [0001] The invention belongs to the field of wireless seismic data transmission protocol design, in particular to a LoRaWAN-based high-efficiency wireless seismic data transmission protocol design method. Background technique [0002] Seismic exploration is developing towards large-scale and high-density acquisition. Wireless seismic equipment has played an increasingly important role in the oil and gas industry in recent years due to its portability compared to traditional equipment with thick cables. Due to the large amount of seismic data, data transmission is usually limited by wireless channel bandwidth, resulting in data transmission conflicts and high transmission delays, which makes real-time data recovery a difficult task. At present, the emerging LoRaWAN can effectively improve the efficiency of wireless data transmission by virtue of low power consumption, long-distance communication, and its unique spread spectrum technology. Therefore, it has b...

AI Technical Summary

Problems solved by technology

Due to the large amount of seismic data, data transmission is usually limited by the wireless channel bandwidth, resulting in data transmission conflicts and high transmission delays, which makes real-time data recovery a difficult task

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