本文選題：無(wú)線數(shù)據(jù)采集系統(tǒng) + 可靠性��； 參考：《武漢理工大學(xué)》2015年碩士論文

【摘要】：無(wú)線數(shù)據(jù)采集系統(tǒng)能實(shí)現(xiàn)水位的實(shí)時(shí)監(jiān)測(cè),使工作人員及時(shí)掌握井下水害的動(dòng)態(tài)變化規(guī)律,做出及時(shí)預(yù)測(cè)及處理。因此,對(duì)無(wú)線數(shù)據(jù)采集系統(tǒng)的可靠性進(jìn)行準(zhǔn)確地分析、研究其失效機(jī)理并提出相應(yīng)的措施對(duì)于提高無(wú)線數(shù)據(jù)采集可靠性、保證煤礦業(yè)安全有著十分重要的意義。首先,本文將詳細(xì)全面地研究無(wú)線數(shù)據(jù)采集系統(tǒng)的結(jié)構(gòu)和系統(tǒng)各個(gè)組成部件的生產(chǎn)工藝過程。確定無(wú)線數(shù)據(jù)采集系統(tǒng)的可靠性指標(biāo)。為后面對(duì)系統(tǒng)進(jìn)行可靠性分析提供依據(jù)。其次,本文在無(wú)線數(shù)據(jù)采集系統(tǒng)可靠性分析中,根據(jù)系統(tǒng)結(jié)構(gòu)和工藝流程研究系統(tǒng)各個(gè)組件的故障模式,確定故障發(fā)生的原因,然后通過故障樹分析法對(duì)無(wú)線數(shù)據(jù)采集系統(tǒng)進(jìn)行定性和定量的可靠性分析。制作出整個(gè)無(wú)線數(shù)據(jù)采集系統(tǒng)的故障樹,根據(jù)故障樹分析系統(tǒng)的最小割集,獲得故障樹底事件的失效率,計(jì)算系統(tǒng)的頂事件概率為0.582×10-3總系統(tǒng)的失效率高。然后,將部件之間的連接關(guān)系用圖形化方式來表示,建立每個(gè)部件的可靠框圖,在根據(jù)部件的可靠性框圖建立總的系統(tǒng)的可靠性框圖。再根據(jù)每個(gè)部件的可靠性框圖建立可靠度模型,建立總系統(tǒng)的可靠性模型。最后,對(duì)可靠性模型進(jìn)行求解。分析可靠性模型,可靠性模型主要有系統(tǒng)總可靠度和成本兩個(gè)約束條件,根據(jù)這這兩個(gè)約束條件,得到最優(yōu)的各個(gè)部件的失效率,從而獲得最大的可靠度,其實(shí)質(zhì)上是可靠性分配問題,詳細(xì)的分析系統(tǒng)可靠性分配問題找到最合適的分配方法對(duì)系統(tǒng)可靠性模型進(jìn)行求解。運(yùn)用matlab編程求解可靠性模型,獲得最優(yōu)的故障率分配使得在滿足約束條件下獲得最小的成本和最大的可靠度。
[Abstract]:The wireless data acquisition system can realize the real-time monitoring of water level, make the staff grasp the dynamic change rule of underground water disaster in time, and make timely prediction and treatment. Therefore, it is very important to analyze the reliability of wireless data acquisition system, study its failure mechanism and put forward corresponding measures to improve the reliability of wireless data acquisition and ensure the safety of coal mining industry. Firstly, the structure of wireless data acquisition system and the production process of each component of the system will be studied in detail. The reliability index of wireless data acquisition system is determined. It provides the basis for reliability analysis of the system. Secondly, in the reliability analysis of wireless data acquisition system, according to the system structure and process flow, the failure mode of each component of the system is studied to determine the cause of the failure. Then the reliability of wireless data acquisition system is analyzed qualitatively and quantitatively by fault tree analysis. The fault tree of the whole wireless data acquisition system is made. According to the minimum cut set of the fault tree analysis system, the failure rate of the bottom event of the fault tree is obtained. The probability of calculating the top event of the system is 0.582 脳 10 ~ (-3) and the failure rate of the system is high. Then, the connection relationship between components is graphically represented, and the reliability block diagram of each component is established, and the reliability block diagram of the total system is established according to the reliability block diagram of the component. Then according to the reliability block diagram of each component, the reliability model is established, and the reliability model of the total system is established. Finally, the reliability model is solved. The reliability model consists of two constraints: total reliability of the system and cost. According to these two constraints, the failure rate of the optimal components is obtained and the maximum reliability is obtained. It is essentially a reliability assignment problem. The system reliability model is solved by analyzing the system reliability assignment problem in detail and finding the most suitable allocation method. Using matlab programming to solve the reliability model, the optimal failure rate allocation is obtained so that the minimum cost and maximum reliability can be obtained under the constraint conditions.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD745

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本文編號(hào)：1862137