基于WSN和RFID的冷链物流监控系统的研究

发布时间：2018-04-22 08:20

本文选题：冷链物流 + 无线传感器网路　；参考：《西南科技大学》2015年硕士论文

【摘要】：随着冷链物流业的不断发展,相关技术日臻成熟,体系日益完善,对温度监控系统的精确性要求也越来越高。传统冷链物流温度监控一般由人工使用温度计记录,不但浪费人力,效率低下,也无法满足当前冷链物流业规模化、智能化的发展要求。冷链物流也随其他行业一样需要努力破除陈旧的思想观念,借鉴当前科学技术发展的最新成果,尤其在温湿度的监控方面。本文在前人研究的基础上,提出了一种基于无线传感器网络和射频识别技术的冷链物流温湿度等环境信息的监控和产品智能标记、识别系统。本文借鉴物联网三层结构,将系统分为感知层、管理层和服务层,其中感知层和管理层是本文的研究重点。感知层由Zigbee无线传感器网络和射频识别系统组成,是系统数据的主要来源,负责采集保温运输车厢内环境信息、运输物品的标识和跟踪,为后期搭建质量追踪系统提供数据支持;管理层是基于嵌入式系统的监控平台,它集成GPRS、GPS模块,应用数据库技术完成数据的储存、管理,采用嵌入式Qt提供GUI。本文结合模糊控制理论,设计模糊自整定控制系统,Matlab/Simulink仿真结果表明,模糊PID控制不仅具有PID控制的优点,还具有自适应功能,具有良好的动态性能和稳态性能。
[Abstract]:With the continuous development of cold-chain logistics industry, the related technology is maturing, the system is becoming more and more perfect, and the precision of temperature monitoring system is becoming more and more high. The traditional temperature monitoring of cold chain logistics is usually recorded by manual use of thermometers, which not only wastes manpower, but also fails to meet the demand of large-scale and intelligent development of cold chain logistics industry. Along with other industries, cold chain logistics also needs to break down the old ideas and learn from the latest achievements in the development of science and technology, especially in the monitoring of temperature and humidity. On the basis of previous studies, this paper presents an intelligent identification system based on wireless sensor networks and radio frequency identification (RFID) technology for the monitoring and identification of cold chain logistics, temperature and humidity, and other environmental information. Based on the three-tier structure of the Internet of things, this paper divides the system into three layers: perceptual layer, management layer and service layer, among which the perceptual layer and the management layer are the focus of this paper. The sensing layer is composed of Zigbee wireless sensor network and radio frequency identification system, which is the main source of system data. The management layer is a monitoring platform based on embedded system, which integrates GPRSU GPS module, uses database technology to complete data storage and management, and uses embedded QT to provide gui. Combined with fuzzy control theory, the simulation results of fuzzy self-tuning control system Matlab-Simulink show that fuzzy PID control not only has the advantages of PID control, but also has adaptive function, and has good dynamic and steady performance.
【学位授予单位】：西南科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP277;TN92;TP391.44

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