Design And Development Of Seismic Exploration Management Platform For Cable-free Self-positioning Seismographs Based On Private Cloud Computing Technology

As an effective geophysical exploration method, seismic exploration is widely used in the exploration of coal field and engineering-geological investigation, as well as the research of areal geology and earth crust. Seismic exploration data collecting task involves measuring line layout, data acquisition unit layout, measuring line information record, shot point layout, source excitation, data acquisition, data downloading, etc. These procedures need the cooperation of the seismic data collecting instrument and related seismic exploration management platform. Generally, exploration management platform contains functions of station management, detector management, data quality control, trigger management, exploration information management, data downloading, data preprocessing and so on.Currently, the mainstream seismic exploration management platform on the market has already been mature enough. However, the following shortcomings should not be ignored. Firstly, it is easy to cause single-point fault without a high-available configuration. Seismic exploration management platform is usually deployed on one computer, with the risk of equipment failure, which may case the interrupt of the exploration operation, and even the loss of exploration data. Secondly, the lack of exploration information sharing mechanism. Generally, the exploration progress information can only be obtained by the operator of management platform and be shared with other workers through other communication device. Thirdly, the low efficiency of big-data processing. After data downloading, the original seismic data should be preprocessed and finally get the single shot records. With the extension of exploration scale and the increasing of receiver points, seismic data processing becomes more and more time-consuming. Therefore, the traditional computing model can hardly meet the needs any more.Cable-Free Self-Positioning Seismograph is the seismic exploration acquisition equipment independently developed by the college of Instrumentation and Electrical Engineering, Jilin University. It is easy to deploy in field test, without the limit of the channel number and distance. Besides, it is a self-positioning measurement equipment, supporting multiple wireless communication methods. However, without a management platform, it cannot provide a good service for seismic exploration.In order to solve these problems, this article designed a seismic exploration management platform for the cable-free self-positioning seismographs, based on the requirement of seismic exploration and the characters of independent development seismographs. The main contents are as following:1. Research on seismic exploration field construction method. Design and develop the seismic exploration field control module based on the cable-free self-positioning seismographs. This module involves the functions of parameter configuration, station management, seismic data quality control and trigger management. Cooperating with the cable-free self-positioning seismographs, the module can complete the seismic data collecting task.2. Design the information publishing module of seismic exploration. This module is developed by Java EE enterprise application platform, used to publish exploration information by Web service. The information publishing module has improved the limitation of lacking information sharing mechanism on the traditional platform, and provided convenience for exploration workers to get the exploration information in time.3. Propose a seismic data processing method based on the Hadoop big-data platform. The method is used to process the original data and obtain the single shot records. Meanwhile, the HDFS(Hadoop distributed file system) is used to store the seismic data, which ensures the safety of the seismic data and meets the needs of the big-data storage.The designed seismic exploration management platform can meet the exploration needs of the cable-free self-positioning seismographs. In addition, the modules of information sharing and big-data processing and storage make the seismic exploration collecting task more convenient and efficient. It is significant for the dissemination and promotion of the cable-free self-positioning seismographs.