大型地震勘探仪器中可靠传输协议和算法的研究

Study of reliable transmission protocol and algorithm in large-scale seismic exploration instrument

地震勘探是地球物理和油气勘探的重要手段之一,近年来逐渐向更深地层更精细化的方向发展,传感器节点数和数据量也变得更加庞大,同时数据分析端对数据质量的要求却更高,这要求海量节点上的数据要快速准确地上传到数据储存服务器,其中实现实验数据的高速可靠传输成为系统设计的一个关键难点.针对地球物理勘探和油气勘探的特点,本文提出了一种应用于大规模地震勘探仪器数据传输系统的高可靠传输协议,既能提高整个数据获取系统的稳定性同时又能提高数据的可靠性.该协议通过对数据传输过程中产生的错误采取充分的检测和处理算法,使得传输错误不会影响到系统的正常运行而且有效数据能正确地上传,并结合DAQ(Data Acquisition,数据获取系统)实现数据存储的容错机制,有效提高了系统稳定性和物理实验数据的可靠性,极大提升了地球物理勘探的工作效率.

Seismic exploration is an important method of geophysical exploration and oil exploration.With the development of seismic exploration in the depth and precision,the number of sensor nodes and the amount of data collected are getting larger.Seismic exploration instruments need larger scale and higher accuracy,however data analysis require higher quality for collected data.This demand that data of mass sensor points must be transferred to storage server fast and accurately.Therefore the stability of the system and the reliability of the data are very important,among them the high-speed and reliable transmission of experimental data is a key difficulty in system design.Based on the characteristics of geophysical exploration,this paper presents a highly reliable transmission protocol for data transmission in seismic exploration system,which can improve the stability of the whole data acquisition system and improve the reliability of the experimental data.Aiming at transmission error the protocol adopts adequate detection and processing algorithm to avoid transmission error affecting normal operation of the system.At the same time,the protocol combines with DAQ to realize fault-tolerant mechanism for data storage.Above all,the protocol effectively improves the system stability and reliability of physical experimental data,and enhances the efficiency of geophysical exploration experiments.