How Do Smart Meters Achieve Remote Encrypted Top-up And Refund?

single phase smart meter can remotely and encryptedly recharge any user's account or refund the user's account through the management machine. The system first connects to the backend management platform. The management unit matches each user's account information with the terminal at wifi smart energy meter, generates an encrypted command for the top-up amount, and sends it to 3 phase energy meter wifi. When a user needs a refund, the backend system verifies the account balance and triggers the refund process. The management unit then sends the refund command to the terminal at energy meter 3 phase wifi, synchronizing the adjustment of funds and battery level.