【摘要】：我國(guó)現(xiàn)階段的能源仍以化石燃料資源為主，而且隨著經(jīng)濟(jì)社會(huì)的發(fā)展，對(duì)煤與石油的需求有增無(wú)減，礦井的安全生產(chǎn)問題成為一個(gè)行業(yè)的突出問題，其中實(shí)時(shí)準(zhǔn)確的檢測(cè)礦井下氣體環(huán)境參數(shù)就顯得非常重要。煤礦開采過(guò)程中，瓦斯、一氧化碳、硫化氫等氣體會(huì)不斷積累，有害氣體濃度不斷增大，極易造成安全隱患。 針對(duì)氣體探測(cè)器領(lǐng)域多功能、集成化的需求，通過(guò)比對(duì)各種氣體檢測(cè)方法的利弊，確定了催化燃燒式傳感器與電化學(xué)式傳感器相結(jié)合的配置方案，根據(jù)不同待機(jī)狀態(tài)下電路對(duì)電源的需求不同采取了電源可控式設(shè)計(jì)，充分的減少了不必要的電能損耗。對(duì)鎳氫電池的充電與放電特性進(jìn)行了深入研究，為避免鎳氫電池的過(guò)充電與過(guò)放電現(xiàn)象的發(fā)生，分析了已有的判定滿電標(biāo)志的方法，設(shè)計(jì)了將-ΔV法，VMAX法與電壓檢測(cè)法三種方法的優(yōu)點(diǎn)相結(jié)合的高效管理方法，完成了電源模塊的設(shè)計(jì)。本文根據(jù)探測(cè)器的設(shè)計(jì)指標(biāo)和功能的要求，，確定了設(shè)計(jì)的總體方案。研究了氣體傳感器測(cè)量中影響測(cè)量精度的主要因素并提出了相應(yīng)的補(bǔ)償措施。該探測(cè)器硬件部分在設(shè)計(jì)上采用了模塊化處理，設(shè)計(jì)了單片機(jī)系統(tǒng)電路模塊、電源管理電路模塊、信號(hào)放大電路模塊及數(shù)據(jù)LCD顯示輸出模塊等，在此基礎(chǔ)上進(jìn)行各電路模塊和樣機(jī)整體的調(diào)試。探測(cè)器軟件設(shè)計(jì)工作包括主程序、溫度及濃度采集程序、按鍵服務(wù)程序、標(biāo)定程序、數(shù)據(jù)處理程序及USB通信程序等功能模塊設(shè)計(jì)。 本文對(duì)傳感器受環(huán)境溫度的影響做了初步測(cè)試，進(jìn)行了甲烷、一氧化碳、硫化氫、氧氣的溫度補(bǔ)償前后對(duì)比測(cè)試，對(duì)電池的充放電性能測(cè)試，結(jié)果表明本多參數(shù)氣體探測(cè)器能夠滿足煤礦業(yè)的國(guó)家安全標(biāo)準(zhǔn)要求，具有實(shí)際應(yīng)用價(jià)值。
[Abstract]:At the present stage, fossil fuel resources are still the main source of energy in our country, and with the development of economy and society, the demand for coal and oil is increasing unabated. The problem of mine safety in production has become a prominent problem in the industry. It is very important to detect the environmental parameters of underground gas in real time and accurately. During coal mining, gas, carbon monoxide, hydrogen sulfide and other gases will accumulate continuously, and the concentration of harmful gas will increase constantly. In view of the multi-functional and integrated demand of gas detector, by comparing the advantages and disadvantages of various gas detection methods, the configuration scheme of the combination of catalytic combustion sensor and electrochemical sensor is determined. According to the different standby state, the power supply can be controlled and the unnecessary power loss can be reduced. The charging and discharging characteristics of Ni-MH battery are studied in depth. In order to avoid the phenomenon of overcharge and overdischarge of Ni-MH battery, the existing methods to determine the full charge mark are analyzed. An efficient management method combining the advantages of-螖 V method VMAX method and voltage detection method is designed, and the design of power supply module is completed. According to the design index and function requirement of the detector, the overall scheme of the design is determined in this paper. The main factors affecting measurement accuracy in gas sensor measurement are studied and the corresponding compensation measures are put forward. In the hardware part of the detector, modularization processing is adopted in the design. The single chip microcomputer system circuit module, the power management circuit module, the signal amplification circuit module and the data LCD display output module are designed. On this basis, the debugging of each circuit module and prototype is carried out. The design of detector software includes main program, temperature and concentration collection program, key service program, calibration program, data processing program and USB communication program. In this paper, the effect of ambient temperature on the sensor was preliminarily tested. The temperature compensation of methane, carbon monoxide, hydrogen sulfide and oxygen was compared before and after the temperature compensation, and the charge-discharge performance of the battery was tested. The results show that the multi-parameter gas detector can meet the national safety standards of coal mining industry and has practical application value.
【學(xué)位授予單位】：哈爾濱理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TD76

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前3條

1 朱梅梅;便攜式多氣體檢測(cè)儀設(shè)計(jì)[D];山東交通學(xué)院;2016年

2 余健;便攜式多氣體濃度檢測(cè)儀設(shè)計(jì)[D];鄭州大學(xué);2016年

3 張彤;基于STM32的便攜式多氣體檢測(cè)儀的研究與設(shè)計(jì)[D];齊齊哈爾大學(xué);2015年

本文編號(hào)：2242235