Inter-site communication state detection method and device for power line communication network

Abstract

The present invention provides an inter-site communication state detection method for a power line communication network. The method comprises the steps of sending a detection request message to an STA site from a CCO site at a pre-set time interval; on the condition that the CCO site does not receive a detection response message sent from the STA site within a preset period of time, judging that the communication between the CCO site and the STA site is in the abnormal state; sending a whole-network broadcast offline message to all STA sites within the power line communication network from the CCO site, and recovering TEI resources corresponding to STA sites in the communication abnormal state. The whole-network broadcast offline message contains the TEI information of each STA site, and is used for indicating all STA sites within the power line communication network to delete the routing information corresponding to the TEI information. In this way, the communication between STA sites in the communication abnormal state and other sites in the power line communication network is cut off. The invention also provides an inter-site communication state detection device for the power line communication network.

Description

technical field [0001] The invention relates to the field of power line communication, in particular to a method and device for detecting communication status between stations of a power line communication network. Background technique [0002] In the power line communication network, the power line is used as the network transmission medium, so that the power line and the signal line are integrated, and there is no need to lay out additional network lines. The ordinary household power socket is the communication interface, which can transmit data and power at the same time. The network is simple and low cost. low and easy to implement. [0003] Usually, in a logical power line communication network, a central coordinator (Central Coordinator, CCO) site is responsible for managing the entire network. In the existing communication process, when a station in the power line communication network loses power or is designated to go offline, it will notify the CCO station and oth...

AI Technical Summary

Problems solved by technology

In the existing communication process, when a station in the power line communication network loses power or is designated to go offline, it will notify the CCO station and other stations; however, when the channel deteriorates and the communication is abnormal, the CCO station and other stations will It is impossible to know the abnormality of the communication, and the data will still be sent continuously, causing the channel burden and even the loss of a large amount of data

Images