物与物相联、物与物的互作用称为物联网。物联网的用途是满足人们的特定需要。 物联网不是一个独立的网, 它依附在互联网中。物联网中有控制物的人, 物是多数, 人是少数。物联网的关键是传感器, 而不同的应用场合需要不同的传感器, 比较分散, 传感器制造产业也比较分散。物联网和传感器正在发展, 有较大的市场, 是通信产业转型和扩充的有利方向。

Internet of Things is a network which is constituted by things connected each other to transmited and exchanged informations for satisfied we needs. Internet of Things is not a independent network, it is dependented on Internet. Internet of Things has men who control the things, but men are minority, things are majority. The sensors are the key of Internet of Things, different uses need different sensors, more dispersed. The industry of sensors are also more dispersed.