人类利用自己的感官认识世界,将感觉到的东西升华为认知,感觉和认知的组合就是“感知”。随着科学技术的发展,人类发明了“延长”感官的工具例如望远镜和显微镜,大可广达宇宙,小可微及尘埃。后来借助于射频通信技术的发展,雷达、超声波、遥感等应运而生。再发展便利用数字和网络来传递探测到的信息。 Human use their own senses to understand the world, sublimation of the perceived things to cognitive, sensory and cognitive combination is “perception ”. With the development of science and technology, human beings have invented “lengthen ” sensory tools such as telescopes and microscopes, which can enlarge the universe, differentiate and remove dust. Later with the development of radio frequency communication technology, radar, ultrasound, remote sensing and so came into being. Redevelopment uses numbers and networks to deliver detected information.