农业育种无线采集装置的控制模块研究与实现

发布时间：2019-05-28 23:02

【摘要】：将信息技术应用到育种过程中可大大降低育种工作者的劳动强度,并且对提高育种效率具有重要研究意义。目前,利用手机NFC技术进行作物育种信息采集的实际操作过程中,育种信息采集人员必须弯腰近距离读取挂在离地面较近的电子标签,操作极为不方便。随着智能手机的普及,使得以手机育种软件作为载体,在农作物育种时期远距离读取田间作物上的电子标签成为迫切需要。本课题为实现这一目标设计出一款便携式UHF-RFID装置,其工作原理主要通过手机蓝牙控制射频读写模块来操作标签,并最终将标签信息返回到手机。本文从育种时期作物信息采集的需求出发,在课题研究的基础上,主要进行了以下几项的科研探索：包括硬件模块的选型,各模块电气连接的PCB制板；安卓操作系统手机控制软件的编写；用HFSS对装置的双馈点陶瓷天线和标签天线进行仿真结果分析；以及对使用过程中可能出现的情形进行测试,研究分析了采集装置合适的读取角度和标签放置间距方案。具体来说,论文首先介绍了本课题研究的背景和意义、国内外研究现状、课题来源及作者的主要工作,并对课题的研究基础做了阐述,包括RFID系统的基本组成、工作原理以及Android平台的支持技术；接着对装置硬件方案做了规划,基于RFID系统工作原理和射频电路设计的基础,论文对射频模块的外围电路进行了简要分析,设计装置的硬件电路板、安卓手机控制软件,并对众多超高频电子标签进行测试,权衡增益和尺寸选出合适的电子标签；接着为了避免装置进入盲区读不到标签以及产生误读邻近标签的情况发生,对标签天线和双馈点陶瓷天线仿真,研究分析了装置合适的读取角度和标签放置间距；最后对装置进行测试。本文实现了育种采集人员在不弯腰的情况下通过手机控制装置远距离读取电子标签的目的,通过操作手机软件,可以对标签进行读和写操作。经过田间测试,本文研究的结果获得了预期的效果,效果令人满意。
[Abstract]:The application of information technology in breeding process can greatly reduce the labor intensity of breeders, and it is of great significance to improve breeding efficiency. At present, in the actual operation process of crop breeding information collection by using mobile phone NFC technology, breeding information collector must bend over and read the electronic label hanging near the ground at close range, which is very inconvenient to operate. With the popularity of smart phones, it is urgent to use mobile phone breeding software as a carrier to read electronic tags from field crops from a long distance during crop breeding. In order to achieve this goal, a portable UHF-RFID device is designed in this paper. its working principle is mainly to operate the tag through Bluetooth control radio frequency reading and writing module of mobile phone, and finally return the label information to the mobile phone. Based on the needs of crop information collection in breeding period and on the basis of the research, this paper mainly carries out the following scientific research and exploration: including the selection of hardware modules, the PCB board with electrical connection of each module; The software of Android operating system mobile phone control is programmed, and the simulation results of double feed point ceramic antenna and label antenna of the device are analyzed with HFSS. And the possible situation in the process of use is tested, and the appropriate reading angle and label placement spacing scheme of the acquisition device are studied and analyzed. Specifically, the paper first introduces the background and significance of this research, the research status at home and abroad, the source of the topic and the main work of the author, and expounds the research basis of the subject, including the basic composition of the RFID system. Working principle and Android platform support technology; Then the hardware scheme of the device is planned. based on the working principle of RFID system and the basis of RF circuit design, the peripheral circuit of RF module is briefly analyzed, and the hardware circuit board of the device and Android mobile phone control software are designed. Many UHF tags are tested, and the appropriate tags are selected by weighing the gain and size. Then, in order to avoid the device from not reading the label in the blind area and misreading the adjacent label, the tag antenna and the double feed point ceramic antenna are simulated, and the suitable reading angle and label placement distance of the device are studied and analyzed. Finally, the device is tested. In this paper, the breeding collector can read the electronic label from a long distance through the mobile phone control device without bending down, and the label can be read and written by operating the mobile phone software. After field test, the results of this study have achieved the expected results, and the results are satisfactory.
【学位授予单位】：安徽大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S126;S33

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