Power line carrier and two-way power frequency communication mixing networking method

Abstract

The invention relates to a power line carrier and two-way power frequency communication mixing networking method which comprises the following steps of: installing a carrier power frequency concentrator on a power line at the low-voltage side of a distribution room transformer, and installing a carrier power frequency collector at a low-voltage resident watt-hour meter; and adding a power frequency channel in a downlink communication module of the carrier power frequency concentrator, and adding a power frequency channel in an uplink communication module of the carrier power frequency collector. By utilizing the characteristics of distant transmission distance, high communication reliability and low cost of the two-way power frequency communication and through the mixing networking application with the power line carrier communication, the invention solves the island problem of the power line carrier communication. The arrangement of the carrier power frequency concentrator and the carrier power frequency collector realizes the two-channel communication of the downlink communication of a low-voltage resident electricity information collection system, greatly improves the copying coverage rate and data accuracy, and provides guarantee for full acquisition, full coverage and full prepayment building aims of an electricity information acquisition and management system.

Description

Technical field: [0001] The invention relates to the technical field of communication, in particular to a hybrid networking method of power line carrier and two-way power frequency communication. Background technique: [0002] Communication is the key to the power information collection and management system, and the reliability of communication directly affects the application effect of the system. At present, the commonly used downlink communication methods for low-voltage residential user power information collection include low-voltage power line carrier, wired cable, short-distance wireless, etc., but these methods have certain defects, and it is difficult to achieve 100% copying coverage. Power line carrier communication does not need to set up a dedicated communication line, and directly uses the original power line resources, which is widely used in low-voltage residential user power information collection systems. However, the attenuation, interference and random d...

AI Technical Summary

Problems solved by technology

However, the attenuation, interference and random dynamic changes of low-voltage carrier channels limit the improvement of carrier communication physical layer communication capabilities, resulting in one or more carrier communication blind spots, which can be called "islands".

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