This invention relates to the field of communication network technology, and particularly to an HPLC+HRF dual-mode communication method and
system. The method includes the following steps: S1, a
tail node listens to the head node's
beacon frames transmitted in the high-speed power line carrier HPLC channel and the high-speed
radio frequency HRF channel, extracts the
signal strength parameters and
signal-to-
noise ratio parameters of the head
beacon frames, and constructs a comprehensive channel quality matrix; S2, the
tail node sends a network access request to the head node based on the comprehensive channel quality matrix. In this invention, to address the problem of
high energy consumption and transmission interruption caused by continuous retransmissions under poor channel conditions, an energy
state vector is generated by cascading the channel state and hardware
discharge gradient. When the vector exceeds the limit, the high-energy-consuming channel is
shut down and unsent messages are redirected to the
radio frequency channel for ordered transmission, effectively blocking unnecessary
power consumption overhead and ensuring smooth switching and delivery of service messages.