Charging piles (or charging station) can convert electricity on the grid into electricity standards that can be used to charge electric vehicles. Charging piles generally provide two charging methods: slow charging and fast charging. According to the installation method, charging piles can be divided into floor-mounted charging piles and wall-mounted charging piles.

Electric vehicle charging pile is charging infrastructure of electric vehicles, In orderto promote the energy transformation, the number of electric vehicles has grown faster than the number of charging piles for existing electric vehicles，the construction of charging piles is seriously lagging behind, which makes it difficult to charge new energy vehicles. It is the most important link and basic guarantee for the promotion and application of electric vehicles. In order to ensure the safety of the charging pile, an effective power distribution scheme is provided. In addition, the user also knows the detailed information of the charging pile in real time.