Power line carrier communication device and control method thereof

Abstract

The invention discloses a power line carrier communication device and a control method thereof. Through an electronic switching circuit, a high-frequency signal receiving-coupling circuit is connected in parallel to a power line when a power line carrier communication processing module is in a wake-up window, and a connection between the high-frequency signal receiving-coupling circuit and the power line is cut off when the power line carrier communication processing module is in a hibernation state, so that the load of a bus is lowered effectively, and the attenuation value of a carrier high-frequency signal is small. Through repeated circulation of wakeup-hibernation-wakeup, the power consumption of the power line carrier communication processing module can be lowered greatly. Specific to the aim of lowering power consumption, a slave ID short address is set behind a synchronization sequence code, so that the problem that the power consumption increases since other slaves which already receive the synchronization sequence code open time receiving windows completely during communication of a host with a certain slave is solved effectively.

Description

technical field [0001] The invention relates to a power carrier communication device and a control method thereof. Background technique [0002] At present, most power carrier communication modules are always in a monitoring state regardless of whether they need to communicate or not, and monitor the carrier information of the power line throughout the process to confirm whether communication is required. With the acceleration of the bandwidth and processing speed of the power carrier communication module, the power consumption of the module that is always in the monitoring state is getting higher and higher. [0003] Some power carrier communication modules use the sleep-wake-monitor method to reduce power consumption, but because the communication time base cannot be synchronized, the wake-up cycle and time window are inconsistent, so the master and slave devices need complex synchronization and coordination mechanisms, and Any out-of-sync will not be able to send and rec...

AI Technical Summary

Problems solved by technology

[0007] The power carrier communication channel is a bus-type communication channel. All power carrier communication modules receive coupling circuits through high-frequency signals and are connected to the power line. For each power carrier communication module, it is a load. Obviously, through ohms Theorem shows that as the load increases, the high-frequency signal attenuation becomes more and more serious, which affects the effect of communication

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