Development Of Power Station In Seismic And Electric Distributed Blended Acquisition System

Non-uniqueness of the solution to a single geophysical prospecting method has always been a difficult problem,and multi-method joint prospection can effectively improve the reliability of prospection.Seismic and electric are widely used geophysical prospecting methods,and the study on seismic and electric method joint prospection has become the research hotspot currently.This paper researches the seismic and electric distributed blended acquisition technology and develops the power station.This paper summarizes the current status of seismic and electrical equipment research,and designs the structure of the seismic and electric distributed blended acquisition system,which is consist of the power station and acquisition station.The system structure is learned from the topology of cabled telemetry seismometers.The functional requirements of the power station include power management,supply and communication with the acquisition station,data preprocessing and storage,clock synchronization,human-computer interaction,etc.The hardware circuit uses a modular design idea and is divided into six parts: interface board,boost board,power board,ARM board,FPGA board and clock board.The functions of the six boards are power supply sequencing,isolated power supply,power management and monitoring,instrument control and human-computer interaction,logic control and high-speed communications,and high-precision clock synchronization.The software design includes the power management program in the power board based on the C language,the human-computer interaction and master control program in the ARM board based on the embedded Linux system,and the high-speed data transfer protocol and high precision clock calibration program in the FPGA board based on the hardware description language.Through the hardware and software design,the prototype of the power station was developed,and a series of indoor tests were did to verify the key functions of the instrument.The results show that the overall design of the instrument is feasible and the performance of each part can meet the system requirements.