Research And Realization Of Engineering Seismograph Data Concentrator

Engineering seismic instrument is a kind of seismic exploration instrument with a range of hundreds of meters exploration depth, it is widely used in the fields of mineral, hydro geology, engineering geology, etc., to achieve the exploration of geological structure under the foundatio n. With the increase of the country's investment in the construction of major infrastructure, we need to carry out a large number of geological exploration work. In addition, our country is in the high incidence area and mass area of geological disasters, which provides a broad market for the development and application of engineering seismic instrument. With the application of digital technology in the engineering seismic instrument, the amount of data collected and transmitted is relatively large, and efficient transmission of data is directly related to exploration efficiency. Therefore, This thesis presents a scheme that parallel transmission of data concentrator design based on FPGA technology, which developed the circuit and the logic system of data co ncentrator independently.This thesis mainly completed the following works:(1) According to the working principle of geological exploration, this thesis establish the corresponding parallel data transmission model and circuit system architecture.(2) The control circuit system of digital detector in engineering seismic instrument is designed. This thesis completed the design of data cache and transmission logic.(3) This thesis designed the data concentrator circuit system of engineering seismic instruments, it completed the logic design of high speed parallel transmission.(4) The data transmission function test of the engineering seismic instrument is carried out in this thesis. The test results meet the technical requirements.Through practical engineering exploration test, the data concentrator can shorten the data transmission time and improve exploration efficiency.