监狱服刑人员三维精确定位系统研究与设计

发布时间：2018-01-07 21:10

本文关键词：监狱服刑人员三维精确定位系统研究与设计　出处：《辽宁工业大学》2014年硕士论文　论文类型：学位论文

更多相关文章： 监狱定位 三维精确定位 UWB TOF TDOA

【摘要】：最近几年，监狱安全事故频发，给国家和人民的财产造成巨大的损失。建立一套完整的精确度高的监狱人员精确定位系统对监狱的安全管理起着非常重要的作用。特别在预防越狱事件发生方面，监狱人员精确定位是最有效的方法。随着无线通信技术飞速发展，特别是UWB技术诞生后和以太网技术的飞速发展为监狱人员定位系统开辟了新的道路。UWB技术应用于监狱人员的精确定位系统具有低功耗、低成本、硬件实现较容易、定位精度高、可进行三维精确定位等优点。UWB信号抗干扰能力比较强，传输可靠性好。通过以太网技术将监狱人员精确定位系统与监控中心连接。精确定位的精确度与监狱管理的安全性有效性密切相关，因此本论文提出监狱服刑人员三维精确定位系统研究与设计。本课题主要对基于UWB技术的室内三维精确定位算法进行研究与设计。首先，简单介绍并比较了目前几种常用的无线技术。详细描述了UWB技术的基本原理，包括UWB基本概念介绍以及与其他无线定位技术相比UWB无线定位技术的主要优势同时也给出了两种常用的UWB信号产生方式。其次，介绍了几种现今主流的室内定位算法以及其几何模型。目前较好的定位算法是TDOA算法。针对于此算法的数学迭代公式是泰勒级数迭代算法，泰勒迭代的问题在于初值的选取，如果初值选取不当将会使收敛速度大大降低甚至不收敛。针对以上问题本课题提出并设计了TOF/TDOA算法，使TOF的结果作为TDOA泰勒算法的初值进行迭代运算，优化了收敛速度，在工程上也更容易实现。论文最后对提出的新算法进行了编程仿真，实验结果证明，，TOF/TDOA协同算法在很大程度上提高了定位精度，而且易于工程实现，在室内三维精确定位领域有较为客观的利用价值。
[Abstract]:Prison security incidents have occurred frequently in recent years. The establishment of a complete set of accurate positioning system for prison personnel plays a very important role in the security management of the prison. Especially in the prevention of prison escape incidents. . Accurate location of prison personnel is the most effective method. With the rapid development of wireless communication technology. Especially after the birth of UWB technology and the rapid development of Ethernet technology, it has opened a new way for the location system of prison staff. The application of .UWB technology to the precise positioning system of prison personnel has low power consumption and low cost. The hardware is easy to realize, the positioning accuracy is high, and so on. The anti-jamming ability of UWB signal is relatively strong. The transmission reliability is good. The precise positioning system of prison personnel is connected with the monitoring center by Ethernet technology. The accuracy of precise positioning is closely related to the security and effectiveness of prison management. Therefore, this paper puts forward the research and design of three-dimensional precise positioning system for prison inmates. This paper mainly focuses on the research and design of indoor 3D precise location algorithm based on UWB technology. First of all. This paper briefly introduces and compares several commonly used wireless technologies, and describes the basic principle of UWB technology in detail. Including the introduction of the basic concept of UWB and the main advantages of UWB wireless positioning technology compared with other wireless positioning technology, two common UWB signal generation methods are also given. Secondly. This paper introduces several main indoor localization algorithms and their geometric models. At present, the better localization algorithm is the TDOA algorithm. The mathematical iterative formula for this algorithm is Taylor series iteration algorithm. The problem of Taylor iteration is the selection of initial value, if the initial value is not selected properly, the convergence speed will be greatly reduced or even not convergent. This paper proposes and designs a TOF/TDOA algorithm for the above problems. The result of TOF is iterated as the initial value of TDOA Taylor algorithm, the convergence rate is optimized, and it is easier to realize in engineering. Finally, the new algorithm is programmed and simulated. The experimental results show that the TOF / TDOA collaborative algorithm improves the positioning accuracy to a large extent and is easy to be implemented in engineering. In the field of indoor three-dimensional accurate positioning, it has more objective use value.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN925

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