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

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.