物联网概述

文中主要介绍了物联网的定义,并分别从感知层、网络层、应用层说明了物联网所需要的相关技术情况;举例说明了物联网在实际生活中的用途,从公共安全、生态环境等领域的应用阐述了物联网的价值;分别从技术标准、安全问题、协议问题等几个方面对物联网要大力发展所面临的主要问题进行了讨论;也简单介绍了中国的物联网产业链目前的发展情况。总结了物联网的发展是一个艰难的过程,但光明前景值得大家进一步努力将其变成现实。

Overview of the Internet of Things

This paper presents the definition of IOT（the Internet of Things） and the related technology required by the perception layer,network layer,and application layer.The application of IOT in real life is described,and several examples in public safety,environment and other fields are given to elaborate the value of IOT.This paper lists some problems faced by IOT,and discusses the bottlenecks in technical standards,security,and protocol etc.In addition,this paper gives a brief introduction of the current development of IOT industry chain,and based on this,it draws a conclusion that the development of IOT is a difficult process,but its bright future is worth further efforts.