Power meter reading communication module based on single-carrier, multi-carrier and wireless communication fusion

Abstract

The invention provides a power meter reading communication module based on single-carrier, multi-carrier and wireless communication fusion in the technical field of power communication. The module comprises a carrier chip, a carrier transmitting circuit, a carrier receiving circuit, a coupling circuit, a zero-crossing circuit, a power failure reporting circuit, an interface circuit, a micro-powerwireless circuit and a DC-DC circuit. A carrier signal input terminal of the carrier chip is sequentially connected to a power line through the carrier receiving circuit and the coupling circuit; anda carrier signal output terminal is connected with a power line through the carrier transmitting circuit and the coupling circuit in sequence. The zero-crossing circuit is used for sending a zero-crossing signal of a power frequency alternating current in the power line to the carrier chip in a pulse manner. A communication terminal of the carrier chip is connected to an electric energy meter through the interface circuit. A power failure signal output terminal of the power failure reporting circuit is connected with a power failure signal input terminal of the carrier chip. Therefore, the fusion of the power line single carrier, the power line multi-carriers and micro power wireless communication is realized; and the module has the high applicability.

Description

technical field [0001] The invention belongs to the technical field of electric power communication, and in particular relates to an electric power meter reading communication module based on the integration of single-carrier multi-carrier and wireless communication. Background technique [0002] The national grid smart meter reading solution is divided into power line narrowband communication, power line broadband communication, and micro-power wireless communication. The currently installed communication modules are mainly power line narrowband communication schemes. Narrowband communication schemes are divided into single-carrier communication and multi-carrier communication. Single-carrier communication has the characteristics of long communication distance, but the communication speed is slow; multi-carrier communication has fast communication speed. characteristics, but the communication distance is weaker than single-carrier communication. Moreover, the single-carrie...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that current single-carrier and multi-carrier cannot intercommunicate, and the problem of abnormal carrier communication when the power line channel is poor, the present invention provides a power meter reading communication module based on the integration of single-carrier multi-carrier and wireless communication, so as to realize power line single-carrier, Convergence of power line multi-carrier and micropower wireless communication

Images