Research On The Lower Position Machine Of Beidou-based Wireless Seismic Exploration System

Aiming at the disadvantages of exploration with cable system,in order to reduce the cost of seismic exploration equipment and construction difficulty,avoid the mobile base station coverage blind area,not limited by desert and the gobi desert,sparsely populated region,this paper puts forward the use of beidou short message and short distance wireless communication technology design seismic exploration equipment.The key technologies of low-power power supply management,wireless communication networking function and the application of beidou short message in seismic exploration are studied.Against no man's land seismic data acquisition communication problem of stress,the beidou satellite short message communication technology was adopted to realize remote operation control and data transmission,exploration data from the field of real-time transmission to the data analysis center,if there is a need for secondary exploration,can the construction personnel are not evacuated from the scene of the exploration situation continued exploration,save manpower cost.Firstly,this paper analyzes the technical foundation of seismic exploration,expounds the principle of seismic exploration,the way of wireless communication,and the remote communication mode of beidou satellite short message.Accordance with the requirements of system design and low cost,the exploration equipment under a machine is divided into host and from the mode of machine,from machine around the host,to host as the center,the data through beidou short message sent to the remote data analysis center,a real-time geological data analysis and interpretation.This paper studied the software and hardware,the hardware part contains STM32F103 as the core of the main control circuit design,design of key circuit,display circuit,power circuit design,satellite positioning GPS clock module circuit design,wireless communication circuit design,short message and seismometer remote communication circuit design signal disposal circuit design,etc.;Software part respectively to the drive control of hardware circuit,completed the geophone output signal acquisition and signal conditioning circuit,to extract the effective wave,satellite positioning timing information,and then to deal with data,under the way of master-slave machine work,complete the data collected by effective recycling,then put the data in the form of beidou short message sent to the remote data analysis center.