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Study On Information Abstraction And Transaction-oriented Design Of Information System For Mine

Posted on:2004-02-18Degree:DoctorType:Dissertation
Country:ChinaCandidate:M R LvFull Text:PDF
GTID:1101360125458075Subject:Mining engineering
Abstract/Summary:PDF Full Text Request
After investigating numerous literatures, this paper roundly summarizes the course, state and trend of information system, discuss problems existed in mine information management. In allusion to confusion concerning about information, the author analyses information's essences, principally defines the concept of information. Finally the effect and significance in recognition on what is information are discussed.In study of information abstraction, the author firstly establishes the Optimum Frequency Matching Theory (OFMT), studies its characteristics and rules, applies this method into real signal abstraction and noise elimination of seismic wave's CT during the detection of underground rock's fissures and cracks in Xinqiao S and Fe mine. Results are obtained approvingly. Otherwise, how to use OFMT to compress signals is fundamentally investigated. Secondly, The mathematical models of slurry's hydration heat and oil casing string's mechanics during cementing are established. Then system simulation technique is used to successfully predict temperatures around casing string, mud and formation, obtains the quantitative changes in stress and strain of casing string. On the base of such information, cement design can be implemented more reasonably. Thirdly, According to the results by analyzing drilling bit data from Zhongyuan Oilfield, a statistical relationship between drilling rate, drilling time and bit quantity used is organized in forms of Rayleigh or self-defined probability distribution function. A discrete random model for bit planning is constructed by use of system simulation theory. The detailed information from systemic simulation can be used as a basis for scientific management and decision for production, selling and bit use in such related departments as bit manufacture, oil company and drilling team.In aspect of developing information system, according to current problems and limitations in information system architecture, idiographic ideas and suggestions for improving this architecture are put forward. Then the concept of Enterprise's Transaction (ET) is defined. Under the guidance of information theory and cybernetics, the systemic architecture of ET is constructed and modeled quantitatively. In foundation of information system's physical database, the author introduces a new method which is named Database Grading Technique (DGT). Excellent results are achieved by using this method during developing KalatongkeIVCu and Ni Mine's management information system. Based on above work, this paper theorizes a new methodology which is called Transaction-Oriented Design Method (TODM) for information system's strategy formulation and implementation, defines basic concepts of Transaction-Oriented Database Design (TODD) and its detailed logic procedures, accomplishes corresponding software development of information system by means of TODM. Taking Kalatongke Cu and Ni Mine's management information system as a example, this paper carefully describes methods and steps in database design and its operation system's development, deeply probes into the all-purpose programme of software, and solves the bottleneck problems in developing information system. Otherwise, the author also excellently realizes the general development of data input management program and dynamic computation within one table or tables such as accounting, synthesizing, aggregating by means of database technique for mine.In quantificational determination and application of mine information, this paper establishes the Order Transfixion Communication Model (OTCM), and basically classifies this model into 32 types of sub-models. Functions to calculate phraseological, pragmatic and semantic information are formulated. Then programs are coded for information computations. Significant results are acquired after processing Kalatongke Cu and Ni Mine's assay data and explaining or commentating its meaning within such information.Through adopting two-step manner, this...
Keywords/Search Tags:information, transaction-oriented design method, optimum frequency matching method, grading method for database design, information abstraction
PDF Full Text Request
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