Under the impetus of national policy, electric vehicle charging piles have become more and more popular, and people's requirements for piles are getting higher and higher. The owner must not only know which piles are closest to themselves, but which piles are now free to charge, and after charging, they must know the current state of charge. It can be easily implemented using ZigBee+GPRS.
1. Charging piles in the Internet era
Now with the development of Internet technology, the way of networking is becoming more and more abundant, and the function of charging pile APP is becoming more and more powerful. With the charging pile APP, people can easily know which piles can be used nearby and what is the state of the pile's charging pile. The basis of all charging pile APP applications is that charging piles can be networked.
Figure 1 charging pile app
2, charging station introduction
The charging pile is divided into a DC pile and an AC pile. Some charging stations are built with AC piles and some have DC piles, and some AC and DC piles are available. Generally, a small-scale charging station has more than a dozen pile positions, and a large-scale charging station has dozens of pile positions.
Figure 2 charging station
3, wired mode networking
Each stub uploads its state to the host through the CAN bus, and then the host transmits the data to the backend server via Ethernet. The app processes the data in the background and passes the information to the final user. The disadvantage of this method is that the site must be able to access the Internet, and subsequent attempts to add new charging piles are very troublesome.
Figure 3 charging station wired network
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