基于WoT技术的智能插座系统的研究与实现

发布时间：2018-04-16 21:40

本文选题：WoT技术 + 物联网　；参考：《华东师范大学》2014年硕士论文

【摘要】：随着计算机网络技术和信息技术的发展,物联网技术开始覆盖人们生活的每个领域。物联网的基本思想在于将各类智慧对象,如传感器、手机、射频标签等,相互关联起来,通过一定的通讯机制建立彼此的协作。这种基本思想与Web技术相结合,就产生了Web of Things的新理念,即WoT技术。与此同时,在最近几年的发展中,物联网技术主要以垂直行业应用为主,并且存在系统部署成本高、缺乏跨平台或跨行业的资源共享、用户只能被动接受服务而无法参与服务生成等问题。以智能家居为例,传统的IoT系统主要关注的是单一元件或单一平台的智能化实现,跨元件跨平台之间无法进行交互,资源与服务也无法进行共享。因此,WoT技术的出现正好弥补了IoT技术的这些缺点,特别是在低成本、跨平台需求高以及开放性高的场景,WoT技术的互联与自由发挥着独特的优势。本文基于对WoT技术的研究,利用网络通信技术、安全防范技术、自动控制技术等将智能家居系统中的插座及其功能集成化,从而构建高效科学的家居电源管理体系,实现家居用电的安全性、便捷性和舒适性。论文的重点工作主要由下述三点组成：其一,讨论和分析WoT技术的国内外研究现状以及其在智能家居领域的应用实例。由于WoT技术能够与其他Web平台进行良好的集成与互通,而且能够借鉴许多成熟技术快速生成业务,因此国内外的许多平台都是基于WoT技术搭建的,比如Cosm平台等。本文通过分析这些成熟的案例,比较它们在技术上的优势和劣势,并将其应用到项目的研究当中。其二,综合软件工程理论和实践,论文具体描述了WoT智能插座系统的整体实现过程,包括需求分析、功能设计、系统软硬件的开发和测试等。在整个实现过程中,基于安全性和实用性的考虑,项目根据不同的网络情景又将系统分为内网和外网两种模式,即通过路由器实现交互的局域网模式和通过服务器实现交互的互联网模式。论文将重点讨论在这两种模式下系统的通信协议和功能架构的具体实现。其三,分析和解决WoT智能插座系统的开放性与安全性问题。一方面,本文利用WoT的自身技术特点预留功能接口来实现开放性功能,从而方便其他系统读取或访问本系统的信息资源。另一方面,本文通过HTTPS协议的应用来解决安全性的问题,SSL层的添加能够在一定程度上阻止来自互联网的骚扰和攻击。经过测试和验证,本文实现的智能插座系统,相比于既有的智能插座系统,拥有如下的特点和优势：其一,本文的系统在操作和体验上增加了更多的功能,同时在响应时间、系统功耗等参数对比上拥有较大的优势。其二,与以往的智能插座不同,本系统不是单一存在的,与智能电表、智能灯具等系统一起,属于智能家居的一部分。因此,它预留了用户信息和插座信息等接口,拥有与其他系统进行交互的功能。其三,相比于之前的通信模式,本系统在安全设计方面采取一定措施,一定程度上增加了系统访问的安全性。在今后,WoT技术将会发挥更广泛的作用,而更多的物联网产品将会青睐于WoT系统的优势和特色。在这个过程中,本文基于WoT技术的实践研究或许能够给未来的发展提供一定价值的参考。
[Abstract]:With the development of computer network technology and information technology, networking technology, people began to cover the life of every field. The basic idea is that things will be all kinds of wisdom, such as sensors, mobile phone, radio frequency label, in conjunction with each other, to establish cooperation with each other through the communication mechanism. The basic idea of combined with Web technology it created a new concept of Web of Things, that is WoT.
At the same time, in recent years the development of networking technology mainly in vertical industry applications, and system deployment costs are high, the lack of cross platform or cross industry resource sharing, users can only passively accept the service to participate in service generation. Based on Intelligent Home Furnishing as an example, the traditional IoT system is mainly concerned with intelligent single component or single platform between the cross element cross platform cannot interact, resources and services can not be shared. Therefore, WoT technology can make up for the shortcomings of IoT technology, especially in low cost, high demand for cross platform and open the scene, WoT Internet technology with the freedom to play a unique advantage.
In this paper, the research of WoT technology based on the use of network communication technology, security technology, automatic control system of intelligent Home Furnishing socket and function integration technology, Home Furnishing power management system to build scientific and efficient, to achieve the safety of power Home Furnishing, convenience and comfort. The focus of the paper is mainly composed of the following three points:
A discussion and analysis of WoT technology and its research status at home and abroad in the field of intelligent Home Furnishing application. Because the WoT technology can be integrated with good interoperability with other Web platforms, and are able to use the fast generation of business many mature technology at home and abroad, so many platforms are based on WoT technology to build, for example Cosm platform. Through the analysis of these cases of mature, comparison of their technical advantages and disadvantages, and apply it to the research project.
Second, the integrated software engineering theory and practice, this paper describes the overall WoT smart socket system realization process, including requirement analysis, function design, system hardware and software development and testing. In the implementation process, considering the safety and practicability based on item according to different network scenarios and divides the system for the internal and external two modes, namely through the realization of the interactive mode and LAN router through the server to achieve the interactive Internet model. This paper will focus on the implementation of system communication protocol between these two modes and the functional architecture.
Third, the analysis and solution of WoT smart socket system open and safety problem. On the one hand, this paper uses WoT's own technical characteristic function reserved interface to achieve the open function, so as to facilitate access to the system or other system reads the information resources. On the other hand, this paper through the application of HTTPS protocol to solve the problem of security the problem, adding SSL layer to prevent harassment and attacks from the Internet to a certain extent.
After testing and verification, the intelligent socket system implemented in this paper has the following characteristics and advantages compared with the existing intelligent socket system:
First, this system has more functions in operation and experience, and has a great advantage in response time, system power consumption and other parameters.
Secondly, unlike previous intelligent sockets, the system is not single. It is part of smart home together with smart meters, smart lamps and other systems. Therefore, it has reserved user information and socket information interface, and has the ability to interact with other systems.
Third, compared to the previous communication mode, this system has taken some measures in the security design, to a certain extent, increased the security of the system access.
In the future, WoT technology will play a more extensive role. More IOT products will be favored by the advantages and characteristics of WoT system. In this process, the practical research based on WoT technology may be able to provide some valuable reference for future development.

【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP391.44;TN929.5

【参考文献】