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An AMR (automatic meter reading) system is a system used to remote reading the consumption of energy. A remote wireless AMR system based on wireless sensor networks and embedded technology is presented in this paper to solve the problems in existing AMR system. The system consists of measure meters, sensor nodes, data collector (gateway), management centre (server) and wireless communication networks. The data transmit from the sensor nodes to the data collector using ZigBee communication network. The system uses Ethernet transmit data from the data collector to the server. The data collector act as gateway, we adopt wireless mesh network topology structures. Routing protocol based on genetic arithmetic is adopted. Simulation results show that the routing protocol based on genetic arithmetic is convergent. The average receive rate of the digital MR sensor node using ZigBee communication was 92.81%. The proposed system have abroad application foreground in the real application field.