求翻译：物联网涉及的行业很多，范围很广。按照物联网的产业链大致可以分三个层面：首先是传感网络，以二维码、RFID（射频识别技术）、传感器、芯片及智能卡为主，实现“物”的识别；其次是传输网络，通过现有的互联网、广电网络、通信网络等实现数据的传输与计算；三是应用网络，即输入输出控制终端，可基于现有的手机、PC等终端进行。是什么意思？

Internet of things involves a lot of industry, a wide range. In accordance with the industrial chain of Things can be roughly divided into three levels: first, the sensor network, two-dimensional code, rfid (radio frequency identification technology), sensors, chips and smart cards to achieve the re

The Internet of Things with a lot of industries, and a wide range of issues. In accordance with the Internet of Things the industry chain can be roughly divided into three levels: first, sensor networks, in order to 2D code, RFID (Radio Frequency Identification Technology), sensors, chips and smart

The thing networking involves the profession are very many, the scope is very broad.May divide three stratification planes approximately accor

Many things involving industry, a wide range. In accordance with real networking of industry chain General can min three a level: first is sensing network, to II dimension code, and RFID (RF recognition technology), and sensor, and chip and the smart card mainly, implementation "real" of recognition