基于蓝牙4.0无线金属探测器设计与实现

发布时间：2018-06-21 21:15

本文选题：低功耗蓝牙 + 金属探测器　；参考：《华南理工大学》2015年硕士论文

【摘要】：金属探测器是一种用来检测和探测金属的仪器,常见的金属探测器有差拍式金属探测器、脉冲式金属探测器和感应平衡式金属探测器,本文所设计和研究的是感应平衡式金属探测器的一种。感应平衡式金属探测器首先发射探测电磁场,检测到的金属目标由于涡流效应会产生并返回一个电磁场信号,我们针对该信号进行信号提取,然后通过金属探测器内部电路对探测到的信号进行处理和分解,达到我们能够处理并且区分的要求。然后通过低功耗蓝牙连接移动终端和金属探测器,其中设计一套稳定的通信协议实现金属探测器和移动终端的稳定数据传输,在移动终端设备上通过区分算法对金属探测器发送来的信号进行进一步的处理,达到区分不同种类金属的目的。同时在移动终端上可以设置金属探测器的参数。本文首先对现阶段金属探测器的发展现状进行描述分析,然后讨论金属探测器的基本工作原理和针对探测信号的处理与分解,接着讨论低功耗蓝牙部分的原理与实现和如何构建稳定的金属探测器与移动终端通信协议,然后在移动终端上比较选择稳定高效的分类算法当作移动终端的金属分类算法。最后一个章节为移动终端上的软件展示。
[Abstract]:Metal detectors are instruments used to detect and detect metals. Common metal detectors are subbeat metal detectors, pulse metal detectors and inductively balanced metal detectors. In this paper, a kind of inductive balance metal detector is designed and studied. The inductive balance metal detector first emits the detection of the electromagnetic field, and the detected metal target generates and returns an electromagnetic field signal due to the eddy current effect, and we extract the signal for the signal. Then the detected signal is processed and decomposed by the internal circuit of the metal detector to meet the requirement that we can process and distinguish. Then the mobile terminal and the metal detector are connected by low-power Bluetooth, and a set of stable communication protocol is designed to realize the stable data transmission between the metal detector and the mobile terminal. In order to distinguish different kinds of metals, the signal sent by metal detector is further processed on mobile terminal equipment by discrimination algorithm. At the same time, the parameters of the metal detector can be set on the mobile terminal. This paper first describes and analyzes the development of metal detectors at present, then discusses the basic working principle of metal detectors and the processing and decomposition of detection signals. Then the principle and implementation of low power Bluetooth and how to construct a stable communication protocol between metal detector and mobile terminal are discussed. Then the stable and efficient classification algorithm is chosen as the metal classification algorithm of mobile terminal. The last chapter shows the software on the mobile terminal.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH89;TN925

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