State Grid Collector Type I (DCZL33-YP22 (narrowband carrier), DCJL33-YP22 (micro power wireless)) integrates modern communication technology, computer software and hardware technology, and power marketing technology. It can collect data from energy meters with RS485 interfaces. Each collection terminal can connect 32 energy meters, forward real-time meter reading commands from the carrier concentrator, and send back the data returned by the energy meters to the concentrator. The collector adopts a mainstream 32-bit ARM microprocessor, which communicates with the concentrator through an upstream channel and queries data from the energy meter through RS485. Parameters can be set and queried through infrared or local RS485 maintenance ports, and the collector can also act as a relay node to copy data from other carrier nodes. Collectors can be divided into two types based on the type of uplink communication channel, namely DCZL33-YP22 type (uplink narrowband carrier) and DCJL33-YP22 type (uplink low-power wireless).