Abstract: To address the challenge of installing residential charging piles in old residential areas due to insufficient power supply capacity, this study designs a shared charging metering device with intelligent load scheduling capabilities. The device employs a hierarchical and phase-based queue scheduling algorithm to optimize users' charging plans. It also relies on a load scheduling execution module composed of reverse-connected thyristors and magnetic retention relays to precisely control the connection and disconnection of charging piles, ensuring the orderly nature of the charging process.