物联网的核心技术是微机电系统技术、射频识别技术和无线传感网络技术。本文对世界发达国家这三项核心技术的发展现状进行了介绍。本文首先介绍了物联网技术的体系结构,也就是各个层次(感知层、数据收集处理层、数据传输层和感知层)所涉及的技术,然后分别介绍了三种核心技术在物联网中的应用。在此基础上对世界发达国家这三项核心技术的发展现状进行了介绍。
<<The core technologies of the Internet of Things (IOT) are MEMS (Micro-Electro-Mechanical Systems) technology,RFID(Radio Frequency Identification) technology and WSN (Wireless Sensor Network) technology. After the introduction of the four layer technology architecture of IOT,three core technologies,i.e. MEMS,RFID and WSN are presented in terms of their basic principles and developments in the IoT. Finally,the developments and applications of three core technologies of the IoT in the developed world are reviewed.
<<Keywords: | Internet of ThingsMEMS (Micro-Electro-Mechanical Systems)RFID (Radio Frequency Identification)WSN (Wireless Sensor Network) |