Power-line communication method, power-line communication device, and power-line communication system
US8121202B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0094
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To provide a power-line communication method, a power-line communication device, and a power-line communication system, which can make communication with high communication efficiency even when the condition of a power line is changed. In step S101, a noise detection process is performed in correspondence to a time domain synchronized with a power source cycle of a power line. In step S102, a communication channel decision process of generating communication channels in the time domain is performed on the basis of the noise condition detected in step S101. In step S103, tone maps are prepared for the communication channels generated in step S102. When the preparation of the tone maps is ended, the tone maps are transmitted to a destination PLC and data are transmitted and received between a transmission-side PLC and a reception-side PLC by the use of the same tone map (step S104).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.