本文選題：多參數(shù)檢測 + 傳感器陣列��； 參考：《南京航空航天大學(xué)》2017年碩士論文

【摘要】：工業(yè)開采過程中,會產(chǎn)生可燃、有毒有害氣體,它們的出現(xiàn)會引起爆炸和人員中毒傷亡事故,嚴重危害著工作人員和周圍民眾的人身安全,如何有效、準確地監(jiān)測工作環(huán)境安全狀況成為了關(guān)鍵問題,同時隨著當前環(huán)境監(jiān)測不斷提高的需求,開發(fā)一款功能多樣的環(huán)境檢測設(shè)備顯得十分重要。本文依據(jù)實際需求,提出一種集移動檢測、無線數(shù)據(jù)傳輸和遠程監(jiān)測為一體的多氣體濃度檢測系統(tǒng),該系統(tǒng)由便攜終端檢測儀、無線傳輸系統(tǒng)和上位機系統(tǒng)三個部分構(gòu)成。本文以工業(yè)環(huán)境安全監(jiān)測為對象,首先閱讀了大量文獻,針對現(xiàn)役檢測設(shè)備存在技術(shù)落后等缺陷,分析了礦井等工業(yè)環(huán)境中氣體的特征和危害,對先前學(xué)者提出的設(shè)計方案進行了深入研究并進行了改進,提出了擬設(shè)計系統(tǒng)的需求、性能、參數(shù)指標和實現(xiàn)方案,同時研究對比了成熟的氣體傳感技術(shù),選用了合適的檢測方法。然后,以同時兼顧性能和低功耗的設(shè)計理念,分模塊完成了系統(tǒng)的開發(fā)。硬件部分,終端檢測儀選用STM32F103作為主控芯片,采用了紅外吸收和電化學(xué)原理的氣體傳感器陣列對被測環(huán)境中多種參數(shù)(CH_4、CO_2、CO、O_2、C_2H_2、C_2H_4、溫濕度)進行檢測,設(shè)計了調(diào)理、顯示、存儲、報警等外圍功能電路;同時為了解決惡劣環(huán)境下無法進行有線傳輸?shù)葐栴},將Zigbee無線傳輸技術(shù)應(yīng)用到環(huán)境監(jiān)測中,對無線傳輸系統(tǒng)各個節(jié)點電路進行了設(shè)計。軟件部分,針對檢測系統(tǒng)需要實現(xiàn)的功能進行了編程,完成了終端設(shè)備所需的采集、顯示、按鍵等程序的設(shè)計,同時對檢測數(shù)據(jù)進行曲線擬合處理,提高系統(tǒng)測量準確度;設(shè)計了無線傳輸軟件系統(tǒng),完成各個設(shè)備和節(jié)點之間的通信;基于Labview平臺設(shè)計了上位機系統(tǒng),便于管理人員對環(huán)境進行監(jiān)測。最后,對整個系統(tǒng)進行了聯(lián)機調(diào)試,并通過實驗,驗證了系統(tǒng)的采集、顯示、聲光報警、無線傳輸和上位機系統(tǒng)動態(tài)監(jiān)測等性能。結(jié)果顯示,系統(tǒng)運行正常,各項指標都符合設(shè)計要求,能夠很好地獲取環(huán)境信息,同時遠程監(jiān)測能力也使檢測系統(tǒng)具有良好的實用價值。
[Abstract]:In the process of industrial exploitation, flammable, toxic and harmful gases will be produced. Their appearance will cause accidents of explosion and poisoning, and seriously endanger the personal safety of the workers and the people around them. How to be effective? It has become a key problem to accurately monitor the working environment safety. At the same time, with the increasing demand of environmental monitoring, it is very important to develop a kind of environmental detection equipment with various functions. According to the actual demand, this paper presents a multi-gas concentration detection system which integrates mobile detection, wireless data transmission and remote monitoring. The system consists of portable terminal detector, wireless transmission system and upper computer system. Taking industrial environmental safety monitoring as an object, this paper first read a large number of documents and analyzed the characteristics and harm of gas in industrial environment, such as mines and mines, in view of the defects of the existing testing equipment, such as technical backwardness. The design scheme proposed by previous scholars has been deeply studied and improved, and the requirements, performance, parameter index and implementation scheme of the pseudo design system have been put forward. At the same time, the mature gas sensing technology has been studied and compared. A suitable detection method was selected. Then, with the design idea of considering both performance and low power consumption, the system is developed by modules. In the hardware part, the terminal detector selects STM32F103 as the main control chip, and adopts the gas sensor array based on infrared absorption and electrochemical principles to detect the various parameters in the measured environment, such as CH4C2C2C2COT, COSP, C2C2H2C2H4 (temperature humidity), and designs the adjustment, display, storage, At the same time, Zigbee wireless transmission technology is applied to environment monitoring to solve the problem of cable transmission in bad environment, and each node circuit of wireless transmission system is designed. In the software part, the functions of the detection system are programmed, and the acquisition, display and key of the terminal equipment are designed. At the same time, the curve fitting of the test data is carried out to improve the accuracy of the system. The wireless transmission software system is designed to complete the communication between each device and nodes, and the upper computer system is designed based on LabVIEW platform, which is convenient for managers to monitor the environment. Finally, the whole system is debugged online, and the performance of the system such as acquisition, display, acousto-optic alarm, wireless transmission and dynamic monitoring of upper computer system is verified by experiments. The results show that the system runs normally and all the indexes meet the design requirements, and it can obtain environmental information well. At the same time, the ability of remote monitoring also makes the detection system have good practical value.
【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

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