【作者】 祝思文；

【导师】 葛立峰；

【作者基本信息】 安徽大学 ， 检测技术与自动化装置， 2007， 硕士

【摘要】 本文提出了一种基于宽带超声传感器的室内定位系统的设计，该系统可用作移动装置的导航部分，如机器人、玩具车等。在解决了测距问题后，本系统实现一定精度和范围的定位功能是可行的。超声定位技术具有结构简单、成本低廉、整体定位准确性高等优点，因而得到了较广泛的应用。本文设计的室内定位技术就是基于超声，采用宽带传感器来实现的。论文详细阐述了该系统设计的原理，将整个系统分为单片机控制电路、超声收发电路、同步信号收发电路、电源电路等部分，对各个硬件部分都给出了原理图并进行了分析。单片机程序是采用MCS-51汇编语言编写的。论文还设计了系统的电路板，并进行了实验验证。宽带传感器摒弃了传统的窄带传感器的两个内在缺点：一是联合定位时的信号干扰多，影响接收；二是噪音频率在传感器的频带中时，系统工作性能差。因此，本文设计采用宽带传感器进行超声信号的发送和接收，从而使整个超声定位系统对有噪音源存在的环境中的对象产生较精确的、实时的位置估计。作者完成的主要工作包括：(1)通过对室内定位技术的各种实现方案的调研，提出了一种基于宽带传感器的超声室内定位系统的设计方案；(2)设计了原理图；(3)制作了电路板；(4)进行了实验验证，给出了实验结果；(5)在实验结果的基础上对系统作了误差分析。更多还原

【Abstract】 A design of the ultrasonic indoor positioning system based on the broadband sensor has been developed in the paper. The system can be used in the navigation part of the shift position, such as robots, toy oars and so on. After solving the problem of ranging, it is feasible that the system performs the positioning function with certain accuracy and range.Ultrasonic positioning technology has many merits, such as simple structure, low cost, high accuracy of the whole positioning and so on, so that has widespread applications. The indoor positioning technology designed in this paper is based on the ultrasonic, and realized by using the broadband sensor. The design principle of the system, which consists the singlechip microcomputer controll circuit, the transmit and receipt circuit of ultrasonic, the transmit and receipt circuit of synchronous signal, power supply circuit and so on, is detailedly described in this paper. Furthermore, the schematic diagram and analysis of the hardware parts are performed. The singlechip microcomputer procedure is compiled with the MCS-51 assembly language. The paper has also designed the circuit board of the system, and verified the experiment.The broadband sensor abandons two inherent limitations of traditional narrowband sensor, one is the signal interferences which corrupte reception when multiple colocated transmitters send signals; the other is poor performance in the presence of ultrasonic noise. Thus, the system transmits and receives ultrasonic signals using the broadband sensor in the paper, and it generates certain accurate, up-to-date position estimates for indoor environments with the noise source.Main works of the author:(1) Has developed a design of ultrasonic indoor positioning system based on the broadband sensor, through the study of various indoor positioning technology schemes;(2) Has designed the schematic diagram;(3) Has made the circuit board;(4) Has done the experiment, give the experimental result;(5) Has done the error analysis to the system based on the experimental result.更多还原