Patent ID: 8515698

Claim:
A digital power meter communication system comprising: a plurality of terminal network communication devices for building connections with a network, wherein each of the terminal network communication devices is electrically connected with a terminal digital power meter; at least one concentrator network communication device for building a connection with the network; and a digital power meter communication device, electrically connected with the at least one concentrator network communication device, the digital power meter communication device comprising: a storage unit for storing a plurality of pieces of electrical connection information and a plurality of digital power meter communication programs, wherein the pieces of the electrical connection information records electrical connections between the terminal network communication devices and the terminal digital power meters, and each of the digital power meter communication programs corresponds to a predefined digital power meter model; and a processing unit electrically connected with the storage unit, the processing unit comprising: an instruction receiving module for receiving a digital power meter communication instruction to communicate with a target digital power meter, which is electrically connected with a target network communication device; a tunnel constructing module for constructing a virtual tunnel to build connection with the target network communication device through the network connected with the at least one concentrator network communication device; a determining module for determining if the target network communication device is one of the terminal network communication devices; and a power meter communicating module for obtaining a target power meter communication program corresponding to the target digital power meter from the digital power meter communication programs stored in the storage unit according to the target network communication device, loading the obtained target power meter communication program, and executing the digital power meter communication instruction utilizing the target power meter communication program through the virtual tunnel to communicate with the target digital power meter if the target network communication device is one of the terminal network communication devices.