矿山无线网络监测系统中TinyOS的应用研究

发布时间：2018-05-08 14:24

本文选题：无线传感器网络 + TinyOS操作系统　；参考：《哈尔滨理工大学》2013年硕士论文

【摘要】：近些年来矿山安全事故的频繁发生，造成巨大的经济损失和人员伤亡。矿山监测系统作为能够预知和预防矿山事故的系统。它的发展受到政府的高度重视。设计一种安全可靠的矿山无线监测系统，不仅有助于减少矿山事故发生，而且有利于矿山安全事故防治系统的信息化、智能化和现代化。本文通过对TinyOS操作系统进行研究与改进解决矿山无线监测系统存在的以下问题。首先，针对目前国内矿山监测系统采用光纤或网线的有线通信方式造成系统末端部署灵活性低，，无法动态监测移动目标和成本高的问题，提出无线传感器网络和光纤环网结合方式。其次，由于矿山监测系统向高集成化和自动化发展造成系统任务并发频繁，任务调度失败率高，易堵塞和实时性低问题，本文提出在TinyOS操作系统中设计动态任务的双环自适应任务调度算法来解决，该算法1400个网络节点在1000s内，系统丢包率为1.3%，任务调度失败率维持在10%以内。再次，针对视频，语音和图像等大量数据无线传输存在传输效率低和误码率高的问题，提出在TinyOS操作系统中设计报头压缩方案来滤除冗余报头信，提高数据传输率和降低网络功耗。该方案在127节点分为4组的系统中，压缩效率达到50%左右。最后，为测试改进的TinyOS系统移植完整性，节点存储空间和节点能耗的变化,动态任务的双环自适应任务调度算法应用效果，报头压缩方案应用效果，设计矿山无线网络监测系统的测试平台。测试和仿真结果表明，改进后的TinyOS操作系统有效地提高矿山无线监测系统的无线数据传输效率，降低网络节点能耗，数据传输可靠性和解决任务频繁并发造成网络堵塞问题。
[Abstract]:In recent years, mine safety accidents occur frequently, resulting in huge economic losses and casualties. Mine monitoring system is a system that can predict and prevent mine accidents. Its development is highly valued by the government. The design of a safe and reliable mine wireless monitoring system is not only helpful to reduce the occurrence of mine accidents, but also conducive to the information, intelligence and modernization of mine safety accident prevention and control system. In this paper, the TinyOS operating system is studied and improved to solve the following problems in mine wireless monitoring system. First of all, aiming at the problem that the domestic mine monitoring system adopts the cable communication mode of optical fiber or network cable, the flexibility of the system terminal deployment is low, and the moving target can not be dynamically monitored and the cost is high. The combination of wireless sensor network and fiber optic ring network is proposed. Secondly, due to the development of mine monitoring system to high integration and automation, the system tasks are concurrent frequently, the failure rate of task scheduling is high, the problem is easy to jam and the problem of low real-time performance. In this paper, a dual-loop adaptive task scheduling algorithm for dynamic tasks in TinyOS operating system is proposed. In this algorithm, the packet loss rate of the system is 1.3 and the failure rate of task scheduling is less than 10% within 1000s of 1 400 network nodes. Thirdly, aiming at the problems of low transmission efficiency and high bit error rate in wireless transmission of a large number of data, such as video, voice and image, a header compression scheme is proposed in TinyOS operating system to filter redundant header letters. Improve data transmission rate and reduce network power consumption. In the system with 127 nodes divided into 4 groups, the compression efficiency is about 50%. Finally, in order to test the transplant integrity of the improved TinyOS system, the change of node storage space and node energy consumption, the application effect of dual-loop adaptive task scheduling algorithm for dynamic tasks and the application effect of header compression scheme are presented. The test platform of mine wireless network monitoring system is designed. The test and simulation results show that the improved TinyOS operating system can effectively improve the wireless data transmission efficiency of the mine wireless monitoring system reduce the energy consumption of network nodes data transmission reliability and solve the problem of network congestion caused by frequent concurrent tasks.
【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】：2013
【分类号】：TD76

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