A low-voltage broadband power line carrier communication unit and networking method

Abstract

The invention relates to a low-voltage broadband power line carrier communication unit and a networking method. The communication unit includes a processor and a wideband carrier baseband module; the processor implements a wideband power line carrier communication network protocol stack; the wideband carrier baseband module provides a high-speed channel and a low-speed channel at the same time; the high-speed channel uses OFDM to modulate the carrier signal and demodulation; the low-speed channel uses the direct spread spectrum method to modulate and demodulate the carrier signal; when networking, the site to be entered takes the channel speed and channel quality as the reference factors, and takes the channel speed priority as the principle or the channel quality priority as the In principle, one of the high-speed channels and low-speed channels of the coordinator is selected as the working channel. The invention reduces the network level, improves the success rate of one-time communication, and improves the transmission efficiency of the low-voltage broadband power line carrier.

Description

technical field [0001] The invention belongs to the technical field of low-voltage power line carrier communication, and in particular relates to a communication unit integrating OFDM communication mode and spread spectrum communication mode and a network networking method for collecting low-voltage power distribution information based on the communication unit. Background technique [0002] Power Line Carrier Communication (PLC) technology is a communication method that uses power lines as a communication medium to transmit data information. This technology converts the original signal into a high-frequency signal through modulation and loads it on the power line for transmission. At the receiving end, the modulated signal is taken out and demodulated through a filter to obtain the original signal and realize information transmission. Through the power line carrier communication technology, the power company can obtain the user's electricity consumption information and even...

AI Technical Summary

Problems solved by technology

However, the power line environment is dynamically changing, and it is difficult to select the position of the bridge node. At the same time, the communication rate of the narrowband power line carrier is low. Using it as a bridge of the broadband power line carrier network will affect the data transmission efficiency of the entire network.

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