电力载波通信网数据交换与网络管理系统设计

发布时间：2018-03-24 13:49

本文选题：电力线通信　切入点：G3-PLC　出处：《西安工程大学》2016年硕士论文

【摘要】：电力载波通信是电力系统特有的通信方式,是一种利用现有电力线,通过载波方式将模拟或数字信号进行高速传输的通信技术。光纤、ADSL、无线网络等众多通信方式高速发展的今天,电力线通信仍以其投资少,无需重新布线,应用范围广,维护成本低等优点,被广泛的使用着。我国的电力线通信技术起步较晚,发展较不成熟,存在着通信速率低,传输距离短,抗干扰能力弱等问题,目前仅在远程抄表等领域被使用着,而在其他的领域中应用的较少。近年来,随着智能家居等概念被提出,电力载波通信有了更广阔的发展空间。本文结合电力线通信在各大应用领域的一些广泛用户需求,设计了一款通用性广,扩展性强,通信速率快,安全性高的电力载波通信网络系统,并实现其数据交换和网络管理的功能。本文设计的电力载波通信系统与传统的通信系统相比有着以下的几个优点:(1)在网络拓扑结构设计上,将整体网络拆分成多路子网,并采用多线程的程序设计模式,每条线程分别负责一路子网设备运行,提高了网络数据交换速度,增强网络带载设备的能力。(2)选择符合C3-PLC通信标准的电力载波调制解调模块,设备接入网络时采用4次握手的EAP-PSK认证加密方式,保证入网模块身份的合法性,确保网络通信安全与通信质量。(3)网络设计上采用轮询的数据交换模式,使得网络设备运行状态随时更新,用户可以查到检测设备的最新运行状态,并在检测终端设备因故障等情况离开网络时,上位机能够第一时间得到通知。(4)对检测终端设备采集的数据进行分类,常用数据通过轮询应答帧上传给PC机,保证数据的随时更新,不常用数据设置了专门的数据查询指令,方便用户在需要的时候自行查询。
[Abstract]:Power carrier communication is a unique mode of communication in power system, which is based on existing power lines. With the rapid development of many communication modes, such as optical fiber ADSL, wireless network and so on, power line communication still has less investment, no need to rewire, and has a wide range of applications. The power line communication technology of our country starts late, develops relatively immature, has the problems of low communication rate, short transmission distance, weak anti-interference ability and so on. At present, it is only used in the field of remote meter reading, but it is seldom used in other fields. In recent years, with the concept of smart home being put forward, The power carrier communication has a broader development space. In this paper, a new kind of power line communication is designed, which has the advantages of wide generality, strong expansibility and fast communication speed, combined with some extensive user needs of power line communication in various application fields. The power carrier communication network system with high security has the functions of data exchange and network management. Compared with the traditional communication system, the power carrier communication system designed in this paper has the following advantages: 1) in the network topology design, The whole network is divided into multiple subnets, and multithreaded programming mode is adopted. Each thread is responsible for the operation of all the subnet devices respectively, which improves the speed of network data exchange. To enhance the capability of the network equipment with load, we select the power carrier modulation and demodulation module that conforms to the C3-PLC communication standard. When the equipment is connected to the network, it adopts the EAP-PSK authentication encryption method of four handshake to ensure the legitimacy of the identity of the access module. Ensure the network communication security and communication quality. 3) in the network design, the data exchange mode of polling is adopted, so that the running status of the network equipment can be updated at any time, and the users can check the latest running state of the equipment. And when the terminal equipment leaves the network because of the fault, the host computer can be notified in the first time. (4) the data collected by the detection terminal equipment is classified, and the commonly used data is uploaded to the PC through the polling response frame. To ensure that the data update at any time, not commonly used data set a special data query instructions, easy for users to query when needed.
【学位授予单位】：西安工程大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN913.6

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