Abstract
In this study, the effects of an AC Adapter for a PLC (Power Line Communications) system are visualized by packet capture analysis. A burst signal could not be received or the number of packet signals in a burst signal are reduced once in a half period of the power-line frequency. A novel method which displays capture time of burst signals using captured packet data and power-line frequency data was proposed. The proposed algorithm was tested by simulation, applying real data, and the effectiveness of the algorithm was proved. Finally, the effects of the AC adapter to communications through the PLC were analyzed by the chart named “Instantaneous Power-Line Frequency Synchronized Superimposed Chart”. If the timestamps of the captured packet data and the instantaneous power-line frequency data is not synchronized, the region that packets can’t be received is shown as winding form. Due to this, an analysis of the region become difficult. Therefore, a synchronization method for the two data is proposed, and facilitation of the method with a chart named “Long Fixed Period Superimposed Chart” is achieved.
