基于模糊PID的救生舱氧气自动控制系统的研究与设计
发布时间：2018-07-22 13:52
【摘要】：煤矿救生舱是保障煤矿遇险人员生命安全的最后一道有效屏障。氧气控制系统作为煤矿井下移动救生舱控制系统分支之一，占有举足轻重的地位。为了使遇险人员能够在舱内有一段生存过渡时间，需要将救生舱内氧气浓度、温湿度以及废气浓度等参数维持在一个安全范围内。精确地供氧可以提高救生舱系统的可靠性，有利于救援人员及舱内被困人员对于救生舱控制系统运行参数的掌握，有利于有限资源的节约，进而延长救援黄金时间来提高被困人员的生存几率。 在煤矿救生舱氧气系统方面，国内相关文献多数停留在供氧方式的选择及其利弊分析、供氧装置的设计，对于救生舱内精确控制氧气方面的文献却寥寥无几。针对目前还没有文献对煤矿井下救生舱氧气控制系统进行数学建模，根据氧气控制系统控制结构创建了煤矿救生舱氧气控制系统的数学模型。针对氧气系统的控制算法及其利弊做了理论分析并以系统的数学模型为控制对象，利用MATLAB将模糊自整定PID与常规PID进行仿真实验对比。对比结果表明，模糊PID控制器不仅能够改善系统的动态性能和静态性能，还能够提高系统的自适应能力。因此模糊自整定PID更加适合应用于煤矿救生舱氧气自动控制系统的设计。 系统以FPGA为控制器核心，，按照模块化设计的思路对各个模块分别进行软硬件设计。借助Verilog HDL对控制系统模糊PID算法、系统数据采集输入、时限动态预估、驱动输出模块等系统关键部分进行实现并仿真验证，最后再加以整合对氧气系统自动调节、时限预估、人工辅助调节等基本功能进行实现，从而达到了智能、精确控制氧气的目的。
[Abstract]:Mine rescue cabin is the last effective barrier to ensure the safety of coal mine personnel in distress. Oxygen control system is one of the branches of underground moving lifebuoy control system in coal mine, which plays an important role. In order to make the personnel in distress have a transitional time in the cabin, it is necessary to maintain the parameters of oxygen concentration, temperature, humidity and exhaust gas concentration in a safe range. The accurate oxygen supply can improve the reliability of the lifebuoy system, be helpful to the rescue workers and the trapped persons in the cabin to master the operation parameters of the control system of the lifebuoy, and is beneficial to the saving of limited resources. Thus prolonging the prime time of rescue to improve the survival probability of trapped people. In the aspect of the oxygen system of mine lifebuoy, most of the domestic literatures remain on the choice of oxygen supply mode and the analysis of its advantages and disadvantages. The design of oxygen supply device is very few for the precise control of oxygen in the lifebuoy. The mathematical model of oxygen control system of mine lifebuoy is established according to the control structure of oxygen control system. The control algorithm of oxygen system and its advantages and disadvantages are analyzed theoretically and the mathematical model of the system is taken as the control object. The fuzzy self-tuning pid is compared with the conventional pid by MATLAB. The results show that the fuzzy pid controller can not only improve the dynamic and static performance of the system, but also improve the adaptive ability of the system. Therefore, fuzzy self-tuning pid is more suitable for the design of automatic oxygen control system of mine lifebuoy. The system takes FPGA as the core of the controller and designs the software and hardware of each module according to the idea of modular design. With Verilog HDL, the key parts of the control system, such as fuzzy pid algorithm, system data acquisition and input, time-limit dynamic prediction, driving output module, are implemented and verified by simulation. Finally, the oxygen system is automatically adjusted and the time limit is estimated. Artificial auxiliary adjustment and other basic functions are realized to achieve the purpose of intelligent and accurate control of oxygen.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD774
本文编号：2137672
[Abstract]:Mine rescue cabin is the last effective barrier to ensure the safety of coal mine personnel in distress. Oxygen control system is one of the branches of underground moving lifebuoy control system in coal mine, which plays an important role. In order to make the personnel in distress have a transitional time in the cabin, it is necessary to maintain the parameters of oxygen concentration, temperature, humidity and exhaust gas concentration in a safe range. The accurate oxygen supply can improve the reliability of the lifebuoy system, be helpful to the rescue workers and the trapped persons in the cabin to master the operation parameters of the control system of the lifebuoy, and is beneficial to the saving of limited resources. Thus prolonging the prime time of rescue to improve the survival probability of trapped people. In the aspect of the oxygen system of mine lifebuoy, most of the domestic literatures remain on the choice of oxygen supply mode and the analysis of its advantages and disadvantages. The design of oxygen supply device is very few for the precise control of oxygen in the lifebuoy. The mathematical model of oxygen control system of mine lifebuoy is established according to the control structure of oxygen control system. The control algorithm of oxygen system and its advantages and disadvantages are analyzed theoretically and the mathematical model of the system is taken as the control object. The fuzzy self-tuning pid is compared with the conventional pid by MATLAB. The results show that the fuzzy pid controller can not only improve the dynamic and static performance of the system, but also improve the adaptive ability of the system. Therefore, fuzzy self-tuning pid is more suitable for the design of automatic oxygen control system of mine lifebuoy. The system takes FPGA as the core of the controller and designs the software and hardware of each module according to the idea of modular design. With Verilog HDL, the key parts of the control system, such as fuzzy pid algorithm, system data acquisition and input, time-limit dynamic prediction, driving output module, are implemented and verified by simulation. Finally, the oxygen system is automatically adjusted and the time limit is estimated. Artificial auxiliary adjustment and other basic functions are realized to achieve the purpose of intelligent and accurate control of oxygen.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD774
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