Powerline communications (PLC) network routing method and system

A technology of power line carrier and communication network, which is applied in distribution line transmission system, wired transmission system, transmission system, etc. It can solve the problem of low communication reliability in the power consumption information collection system, reduce the amount of signaling messages, and reduce loss Packet rate, the effect of improving forwarding efficiency
CN105072034AInactive Publication Date: 2015-11-18BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +3
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY
Publication Date
2015-11-18
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a powerline communications (PLC) network routing method and system. The method comprises the following steps: step A, a transmitting node transmits a frame of Request To Send (RTS) in a Distributed Coordination Function (DCF) protocol to each neighboring node in a broadcasting manner; step B, each neighboring node calculates own forwarding delay time TCTS_REQ, and the neighboring node having the minimal TCTS_REQ replies to the transmitting node with a frame of Control To Send (CTS); step C, the transmitting node forwards a data packet to the neighboring node having the minimal TCTS_REQ; step D, if the transmitting node receives an acknowledgement character (ACK) returned by the neighboring node having the minimal TCTS_REQ, the transmission is successful; and step E, each node receiving the data packet orderly repeats the steps A to D until the data reaches a target node.
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Description

technical field

[0001] The present invention relates to the technical field of power communication, in particular to a routing method and system for a power line carrier communication network. Background technique

[0002] As a unique communication technology in the power industry, Powerline Communications (PLC) technology has the advantages of wide coverage and low cost, and has been widely used in the field of power user information collection systems. Due to the variability of the power line carrier channel, the topology of the PLC network is often changed and unpredictable, resulting in the establishment and disconnection of links. The routing protocol based on logical topology detects routing lines actively or on demand and saves the corresponding routing table information at each node. However, the application of this routing protocol in a large-scale network environment will cause the problem of control packet broadcast storm. How to find a suitable route in a dynam...

Claims

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