本文選題：煤礦氣體檢測 + Zigbee技術(shù)��； 參考：《南京航空航天大學(xué)》2017年碩士論文

【摘要】：三十多年來,在我國經(jīng)濟(jì)建設(shè)取得巨大成就的同時,煤礦安全生產(chǎn)事故仍然頻發(fā)多發(fā),嚴(yán)重危害人民生命安全,阻礙經(jīng)濟(jì)可持續(xù)發(fā)展�，F(xiàn)有的煤礦井下氣體檢測系統(tǒng)大多采用有線通信方式進(jìn)行數(shù)據(jù)傳輸,存在著檢測范圍受限、線路依賴性強(qiáng)、布線繁瑣等缺點(diǎn)。針對這些方面的局限,本文進(jìn)行了相關(guān)研究和設(shè)計工作,能夠有效克服上述有線傳輸方式的不足,利用無線傳感網(wǎng)絡(luò)的覆蓋范圍廣、組網(wǎng)便攜、靈活組織、擴(kuò)展性強(qiáng)的特點(diǎn),構(gòu)建覆蓋井下巷道的無線傳輸網(wǎng)絡(luò)同時利用井上已有的網(wǎng)絡(luò)線纜實(shí)現(xiàn)長距離傳輸,對改善目前煤礦安全監(jiān)測的狀況、提高煤礦安全生產(chǎn)條件具有重要意義。本文首先對現(xiàn)有礦井下多氣體檢測系統(tǒng)的背景和發(fā)展現(xiàn)狀進(jìn)行了調(diào)研和總結(jié),分析傳統(tǒng)檢測系統(tǒng)存在的不足和今后的發(fā)展趨勢,并對相關(guān)技術(shù)理論進(jìn)行深入學(xué)習(xí),以煤礦井下空間環(huán)境和檢測需求為基礎(chǔ),采用融合了無線和有線數(shù)據(jù)傳輸方式的礦井下多氣體檢測和傳輸方案。本文以STM32為核心設(shè)計了多氣體濃度檢測模塊,以ZigBee芯片JN5148搭建Mesh狀無線傳輸網(wǎng)絡(luò),實(shí)現(xiàn)了礦井下環(huán)境多氣體的檢測和氣體數(shù)據(jù)傳輸。在比較了當(dāng)下幾種常見的無線通信方式和以太網(wǎng)網(wǎng)關(guān)實(shí)現(xiàn)方式的基礎(chǔ)上,采用嵌入式以太網(wǎng)芯片W5500設(shè)計了ZigBee轉(zhuǎn)以太網(wǎng)網(wǎng)關(guān),實(shí)現(xiàn)無線和有線傳輸?shù)慕Y(jié)合。并以Labview 2014為開發(fā)環(huán)境進(jìn)行檢測系統(tǒng)上位機(jī)軟件界面的開發(fā)。對系統(tǒng)的氣體濃度檢測模塊、終端節(jié)點(diǎn)、路由節(jié)點(diǎn)、協(xié)調(diào)器節(jié)點(diǎn)和以太網(wǎng)網(wǎng)關(guān)進(jìn)行了詳細(xì)的軟硬件設(shè)計,詳述了各部分的工作過程,對節(jié)點(diǎn)的無線傳輸功能和網(wǎng)關(guān)通信功能進(jìn)行了測試,并闡述了上位機(jī)軟件程序設(shè)計。最后,針對目標(biāo)氣體間可能存在的交叉干擾情況進(jìn)行了分析和試驗(yàn)驗(yàn)證,基于正交試驗(yàn)方法設(shè)計了氣體樣本數(shù)據(jù)配氣方案,并采取了RBF神經(jīng)網(wǎng)絡(luò)和支持向量回歸機(jī)兩種方法進(jìn)行數(shù)據(jù)處理,得到的處理結(jié)果滿足檢測需求。本文實(shí)現(xiàn)了ZigBee無線網(wǎng)絡(luò)和以太網(wǎng)絡(luò)的互聯(lián),能夠完成對礦井下氣體監(jiān)測數(shù)據(jù)在較大范圍內(nèi)和遠(yuǎn)距離的傳輸,并通過上位機(jī)實(shí)現(xiàn)了對用戶數(shù)據(jù)和氣體監(jiān)測數(shù)據(jù)的管理。整個系統(tǒng)具有較好的實(shí)時性、可靠性和實(shí)用性,可以以波形和表格兩種方式實(shí)時顯示數(shù)據(jù),并具有生成報表、超限報警、監(jiān)測數(shù)據(jù)查詢等功能,維護(hù)方便、擴(kuò)展性強(qiáng),滿足了方案設(shè)計要求。
[Abstract]:In the past 30 years, while China's economic construction has made great achievements, coal mine safety accidents still occur frequently, seriously endangering the safety of people's lives and hindering the sustainable development of economy. Most of the existing underground gas detection systems use wired communication for data transmission, which has the shortcomings of limited detection range, strong line dependence, cumbersome wiring and so on. In view of these limitations, this paper has carried on the related research and the design work, can effectively overcome the above wired transmission way insufficiency, utilizes the wireless sensor network the coverage scope is wide, the network is portable, the flexible organization, the expansibility strong characteristic, It is of great significance to construct a wireless transmission network covering underground roadway and realize long distance transmission by using the existing network cable in the well, which is of great significance to improve the current situation of coal mine safety monitoring and improve the conditions of coal mine safety production. In this paper, firstly, the background and development status of the existing multi-gas detection system under the mine are investigated and summarized, the shortcomings of the traditional detection system and the development trend in the future are analyzed, and the relevant technical theories are deeply studied. Based on the space environment and detection requirement of underground coal mine, the multi-gas detection and transmission scheme of underground mine is adopted, which combines wireless and wired data transmission mode. In this paper, a multi-gas concentration detection module is designed with STM32 as the core, and a Mesh wireless transmission network is built with ZigBee chip JN5148, which realizes the detection of multi-gas and gas data transmission under the mine environment. On the basis of comparing several common wireless communication modes and Ethernet gateway implementation methods, the ZigBee to Ethernet gateway is designed with embedded Ethernet chip W5500 to realize the combination of wireless and wired transmission. With Labview 2014 as the development environment, the software interface of the upper computer of the detection system is developed. The software and hardware of the gas concentration detection module, terminal node, routing node, coordinator node and Ethernet gateway are designed in detail, and the working process of each part is described in detail. The wireless transmission function and gateway communication function of the node are tested, and the software design of the upper computer is described. Finally, the possible cross-interference between the target gases is analyzed and verified by experiments. Based on the orthogonal test method, the gas sample data distribution scheme is designed. Two methods, RBF neural network and support vector regression machine, are adopted to process the data. In this paper, the interconnection of ZigBee wireless network and Ethernet network is realized, and the transmission of gas monitoring data under mine is completed in a large range and long distance, and the management of user data and gas monitoring data is realized by the upper computer. The whole system has better real-time, reliability and practicability. It can display data in real time by waveform and table. It also has the functions of generating report forms, alarming exceeding limits, monitoring data query, and so on. The system is easy to maintain and has strong expansibility. Meet the project design requirements.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD711;TP311.52

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