DATA CONNECTION METHOD OF MULTI-CHANNEL DIGITAL VIDEO RECORDER SYSTEM USING POWER LINE COMMUNICATION

摘要

A data connection method of a multi-channel digital video recorder system using PLC(Power Line Communication) is provided to be capable of continuously monitoring connected states of each channel in one thread to reconnect within the thread in case of a disconnected channel, thus real-time image data sent from each channel can be received with almost no loss. A particular channel is selected from multiple channels of a digital video recorder system (S11). The open state of the selected channel is confirmed(S12). If it is confirmed that the channel is closed, an on state of the channel is confirmed(S13). If it is confirmed that the channel is in off state, the next channel is selected(S21). If it is confirmed that the channel is in on state, the channel is open(S14).