基于Zigbee与Internet的接入技术研究

发布时间：2018-06-20 16:57

本文选题：Zigbee + Internet　；参考：《重庆理工大学》2014年硕士论文

【摘要】：一种技术的进步往往能催生出另外一些技术的产生与发展，近些年随着信息技术、网络技术以及其他各种短距离无线技术的发展，以及人们在实际生活中面对一些需要通信的问题时，迫切希望有一种应用能力极强、能耗低且组网方便的无线通信技术满足应用需求，Zigbee技术就是在这样一种背景下产生的，而随着它的发展和应用不断广泛，将它融合到当前使用最为广泛的Internet中来已是大势所趋。现如今Zigbee与传感器技术结合起来形成了应用广泛的无线传感器网络技术。据一些媒体透露，WSN被认为对人类未来的生活产生影响最大的一种无线网络通信技术，其在国防、环境监测及预报、各种智能化产品和工业生产制造等领域有着广阔的应用前景。本文提出了“基于Zigbee与Internet的接入技术研究”一文，它结合Zigbee无线传感器网络技术、嵌入式技术和无线接入技术，将Zigbee无线传感器网络与当前大众所熟悉的Internet结合起来，使无线传感器网络采集到的数据能实时准确的传送到计算机或者其他Internet的智能终端上，完成Zigbee与Internet的双向无线接入。并针对目前在本课题的研究上存在的问题提出增强系统安全系数的身份认证机制,通过身份认证机制确认用户的合法性，从何保证数据不至于被非法登录网络对数据进行盗取、非法改变等，实现无线传感器网络与Internet的安全有效融合。文中选取TI公司的cc2530无线射频芯片作为Zigbee无线网络核心部件，基于ARM9体系结构的s3c2440处理器作为两种网络转换的核心网络转换中心，pc机作为Internet端接收控制设备，研制了一套完整的嵌入式网络转换服务器。在完成系统硬件平台的搭建后，通过Zigbee终端节点上的传感器采集各种待检信号，利用高性能的cc2530无线收发芯片将采集的信号聚拢到协调器中的存储单元中，通过Zigbee协议栈将采集到的数据打包为Zigbee格式并在处理器中转换为Ip数据包，并建立Ip地址与Zigbee网络短地址进行一一映射，，以确定发送目的，而在Linux与Internet上的终端建立socket通信。经处理器处理后的数据送入嵌有TCP/IP协议栈的USB无线网卡对进行以太网封装，然后通过无线网卡发送到Internet上的终端，或者Zigbee网络节点接收控制命令并作出响应，并利用Linux-PAM模块完成用户的登录认证，确保用户的合法登录，保证Zigbee网络数据的安全使用，从而实现Zigbee无线传感器网络与Internet的无缝融合。最后进行系统检测，以温度信号为待测信号检测Internet上接收Zigbee数据情况和Zigbee节点接收控制命令情况，并针对结果作出分析。
[Abstract]:Advances in one technology often lead to the emergence and development of other technologies. In recent years, with the development of information technology, network technology and other short-range wireless technologies, And when people are faced with some problems that need communication in real life, they are eager to have a wireless communication technology with very strong application ability, low energy consumption and convenient networking to meet the application requirements. Zigbee technology is produced under such a background. With the development and application of it, it is the trend to integrate it into the most widely used Internet. Now Zigbee combines with sensor technology to form a widely used wireless sensor network technology. According to some media, WSN is regarded as a wireless network communication technology which has the greatest impact on the future life of human beings. It has broad application prospects in the fields of national defense, environmental monitoring and forecasting, various intelligent products and industrial production and manufacturing. In this paper, the research of access technology based on Zigbee and Internet is presented. It combines Zigbee wireless sensor network technology, embedded technology and wireless access technology, and combines Zigbee wireless sensor network with Internet, which is familiar to the public at present. The data collected by wireless sensor network can be transmitted to computer or other intelligent terminals of Internet in real time, and the two-way wireless access between Zigbee and Internet can be completed. And in view of the problems existing in the research of this subject at present, this paper proposes an identity authentication mechanism to enhance the safety factor of the system, to confirm the legitimacy of the user through the identity authentication mechanism, and to ensure that the data will not be stolen by the illegal login network. Illegal changes, the realization of wireless sensor networks and Internet security and effective integration. In this paper, the cc2530 RF chip of TI Company is chosen as the core component of Zigbee wireless network, and the s3c2440 processor based on ARM9 architecture is used as the core network conversion center of two network conversions. A complete set of embedded network conversion server is developed. After building the hardware platform of the system, the sensors on the Zigbee terminal node are used to collect all kinds of signals to be detected, and the collected signals are gathered into the memory unit of the coordinator by using the high performance cc2530 wireless transceiver chip. Through the Zigbee protocol stack, the collected data is packaged into Zigbee format and converted into IP packets in the processor, and the IP address and the short address of Zigbee network are set up to map one by one to determine the sending purpose, and the socket communication is established between socket and the terminal on the Internet. The data processed by the processor is sent to the USB wireless card embedded with TCP / IP protocol stack for Ethernet encapsulation, then sent to the terminal on the Internet through the wireless network card, or the Zigbee network node receives the control command and responds to it. The Linux-PAM module is used to complete the login authentication of users, to ensure the legitimate login of users, to ensure the safe use of Zigbee network data, and to realize the seamless integration of Zigbee wireless sensor network and Internet. Finally, the temperature signal is used as the signal to detect the situation of receiving Zigbee data on the Internet and the Zigbee node to receive the control command, and the results are analyzed.
【学位授予单位】：重庆理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92

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