本文選題：采煤工作面 + 無(wú)線傳感器網(wǎng)絡(luò)　； 參考：《中國(guó)礦業(yè)大學(xué)》2014年碩士論文

【摘要】：因?yàn)椴擅汗ぷ髅嬷型咚褂砍鲈春芏啵⑶彝咚節(jié)舛仁芎芏嘁蛩氐挠绊�，所以采煤工作面的瓦斯�(jié)舛确植际謴?fù)雜，尤其是上隅角，此處的瓦斯?jié)舛韧ǔＪ亲罡叩模坏┏^煤礦瓦斯安全濃度的上限，就給煤礦生產(chǎn)帶來(lái)很大的風(fēng)險(xiǎn)，因此，研究采煤工作面上的瓦斯?jié)舛确植家?guī)律有十分重要的意義。 本論文在第二章中分析了在采煤工作面中瓦斯涌出的主要影響因素，研究了幾個(gè)瓦斯涌出源涌出規(guī)律以及其涌出量計(jì)算方法。在第三章中，介紹了趨勢(shì)面分析法以及相應(yīng)的檢驗(yàn)方法，以便得到最佳的趨勢(shì)面，除此之外還介紹了如何繪制趨勢(shì)面等值圖和異常分量等值圖，，通過這兩個(gè)等值圖，我們就可以清楚地知道局部地質(zhì)因素和區(qū)域性地質(zhì)因素對(duì)瓦斯涌出量的影響。這兩章為后面分析整個(gè)采煤工作面的瓦斯?jié)舛确植家?guī)律打下了理論基礎(chǔ)。 為了更加準(zhǔn)確地獲得采煤工作面上各個(gè)觀測(cè)面的瓦斯?jié)舛�，本論文采用了無(wú)線傳感器網(wǎng)絡(luò)，瓦斯傳感器測(cè)量節(jié)被點(diǎn)分布呈網(wǎng)狀拓?fù)浣Y(jié)構(gòu),進(jìn)行采集各個(gè)瓦斯觀測(cè)點(diǎn)的瓦斯數(shù)據(jù)，測(cè)量網(wǎng)絡(luò)的基站節(jié)點(diǎn)和測(cè)量節(jié)點(diǎn)主要包含了ZigBee無(wú)線通信單元、系統(tǒng)控制處理器單元、瓦斯傳感器檢測(cè)單元和電源電壓轉(zhuǎn)換與供給單元等四個(gè)獨(dú)立工作單元。 根據(jù)各個(gè)觀測(cè)點(diǎn)的觀測(cè)數(shù)據(jù)，建立1～5階趨勢(shì)面擬合方程模型，然后通過趨勢(shì)面模型的適度檢驗(yàn)，獲得最適合的趨勢(shì)面方程，通過surfer繪制出采煤工作面瓦斯?jié)舛确植嫉牡戎稻�圖以及趨勢(shì)圖，通過等值線圖和趨勢(shì)圖，從整體角度上分析采煤工作面上瓦斯分布情況，然后在風(fēng)流條件下，在不同的方向、采煤工作面截面以及上隅角布置了測(cè)量節(jié)點(diǎn)，分析這幾種情況下瓦斯?jié)舛鹊淖兓�，并通過流體動(dòng)力學(xué)方面的知識(shí)做出了原因解剖，最后在不同的風(fēng)速下，分析了采煤工作面的瓦斯?jié)舛确植记闆r。
[Abstract]:Because there are many sources of gas emission and gas concentration is affected by many factors, the distribution of gas concentration is very complex, especially in the upper corner, where the gas concentration is usually the highest. Once the upper limit of gas safety concentration is exceeded, it will bring great risk to coal mine production. Therefore, it is of great significance to study the distribution law of gas concentration in coal mining face. In the second chapter of this paper, the main influencing factors of gas emission in coal mining face are analyzed, and the law of several gas emission sources and the calculation method of gas emission quantity are studied. In the third chapter, the trend surface analysis method and the corresponding test method are introduced in order to obtain the best trend surface. In addition, how to draw the trend surface equivalent map and the abnormal component equivalent map is also introduced. We can clearly know the influence of local geological factors and regional geological factors on gas emission. These two chapters lay a theoretical foundation for the analysis of the distribution of gas concentration in the whole coal face. In order to obtain the gas concentration more accurately, the wireless sensor network is used in this paper. The gas sensor nodes are distributed in the network topology structure, and the gas data of each gas observation point are collected. The base station nodes and measurement nodes of the measurement network mainly include four independent working units: ZigBee wireless communication unit, system control processor unit, gas sensor detection unit and power supply and voltage conversion unit. According to the observation data of each observation point, the fitting equation model of 1 ~ 5 order trend surface is established, and the most suitable trend surface equation is obtained through the moderate test of the trend surface model. The contour map and trend map of gas concentration distribution in coal mining face are drawn by surfer, and the distribution of gas in coal face is analyzed from the whole angle through isoline map and trend map, and then in different directions under the condition of air flow. The measurement nodes are arranged in the cross section and the upper corner of the coal mining face. The change of gas concentration in these cases is analyzed, and the causes are dissected by the knowledge of fluid dynamics. Finally, under different wind speeds, The distribution of gas concentration in coal face is analyzed.
【學(xué)位授予單位】：中國(guó)礦業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TD712

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