便携式矿用多参数气体探测器设计
发布时间：2018-09-14 09:08
【摘要】：我国现阶段的能源仍以化石燃料资源为主，而且随着经济社会的发展，对煤与石油的需求有增无减，矿井的安全生产问题成为一个行业的突出问题，其中实时准确的检测矿井下气体环境参数就显得非常重要。煤矿开采过程中，瓦斯、一氧化碳、硫化氢等气体会不断积累，有害气体浓度不断增大，极易造成安全隐患。 针对气体探测器领域多功能、集成化的需求，通过比对各种气体检测方法的利弊，确定了催化燃烧式传感器与电化学式传感器相结合的配置方案，根据不同待机状态下电路对电源的需求不同采取了电源可控式设计，充分的减少了不必要的电能损耗。对镍氢电池的充电与放电特性进行了深入研究，为避免镍氢电池的过充电与过放电现象的发生，分析了已有的判定满电标志的方法，设计了将-ΔV法，VMAX法与电压检测法三种方法的优点相结合的高效管理方法，完成了电源模块的设计。本文根据探测器的设计指标和功能的要求，，确定了设计的总体方案。研究了气体传感器测量中影响测量精度的主要因素并提出了相应的补偿措施。该探测器硬件部分在设计上采用了模块化处理，设计了单片机系统电路模块、电源管理电路模块、信号放大电路模块及数据LCD显示输出模块等，在此基础上进行各电路模块和样机整体的调试。探测器软件设计工作包括主程序、温度及浓度采集程序、按键服务程序、标定程序、数据处理程序及USB通信程序等功能模块设计。 本文对传感器受环境温度的影响做了初步测试，进行了甲烷、一氧化碳、硫化氢、氧气的温度补偿前后对比测试，对电池的充放电性能测试，结果表明本多参数气体探测器能够满足煤矿业的国家安全标准要求，具有实际应用价值。
[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.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD76
本文编号：2242235
[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.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD76
【引证文献】
相关硕士学位论文 前3条
1 朱梅梅;便携式多气体检测仪设计[D];山东交通学院;2016年
2 余健;便携式多气体浓度检测仪设计[D];郑州大学;2016年
3 张彤;基于STM32的便携式多气体检测仪的研究与设计[D];齐齐哈尔大学;2015年
本文编号：2242235
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