As we all know, with the development of social automation, the demand for automation in the field of industrial control is growing rapidly. The character of industrial field is that an industrial control node or data node can be completed by using a simple CPU, but the processing of data is often sent to the background server.
Moreover, the control endpoints and data collection points are relatively scattered. The decentralized nature of industrial control has led to the widespread use of multiple wireless technologies, and WIFI is one of them. WiFi is used for industrial control and has its unique advantages. Its advantages are as follows:
(1)WiFi terminal devices are basically popular, and WiFi has been already standard on smart handheld terminals.
(2)WiFi, as the technical standard of wireless LAN, can communicate with the existing Internet through wireless routers. There are no technical and protocol barriers.
(3)WiFi is a mature, international wireless technology standard. All WiFi devices can be interconnected, unlike other narrowband technologies which has no uniform protocol standard that is difficult to achieve.