The rise of the bar code recognition technology, quickly and accurately for effective means of collecting data input, solve the manual data input speed is slow, and the error rate is high, resulting in the "bottle neck" problem is provided.

Internet of things is a 21st century after the personal computer, Internet and mobile communication network the three global information tide, from the industry point of view, can be divided into three aspects, that is, perception layer, transport layer and application layer, two-dimensional technology related technologies and products mainly belong to layer perception.

Internet of things is a 21st century after the personal computer, Internet and mobile communication network the three global information tide, from the industry point of view, can be divided into three aspects, that is, perception layer, transport layer and application layer, two-dimensional technology related technologies and products mainly belong to layer perception.