Design Of Multi Node Data Transmission System Based On FPGA

Seismic exploration method is a mainstream technology in geological exploration.By grasping the artificial excitation manufacturing and different geological seismic waves refl ected back layer,which can effectively analyze the different geological structures and cont ain minerals.Generally,the detection process can be divided into three parts: data acquisiti on,data processing and data analysis.Among them,data acquisition is the most basic and i mportant part.Based on the analysis of the function and application of seismic data acquisition syste m,boldly presents theory scheme of data acquisition system,put forward FPGA+DSP cont rol mode,and strive to solve the traditional seismic wave data acquisition system receives t he defect data processing efficiency is low and slow.Completion of the main innovation work includes:(1)The breakthrough point of sync hronous acquisition algorithm is explored,and the design concept of GPS marking machin e prototype is put forward,which also makes up for the shortage of product line in the exist ing market;(2)According to the function and application of seismic wave data acquisition s ystem board,the protocol stack and frame format are designed.In the whole design process can be divided into two parts,the first part is the hardwar e design,including the GPS marking machine principle prototype design,seismic data acq uisition system hardware circuit design;The second part is FPGA design,using the flexibil ity of FPGA,parallel processing and other advantages to design a custom protocol stack,a nd discuss the working process and frame format of the protocol stack.On the part of modules were simulated using the Modelsim tool,and set up a test platf orm in the laboratory,using the computer project group of other personnel design observati on at all nodes back to the terminal information,to verify the feasibility of seismic data acq uisition system board.