Carrier communication method and system based on charging-discharging of electric vehicle and carrier device

(canceled)

(canceled)

A carrier communication system based on charging-discharging of an electric vehicle, comprising:

• a peripheral apparatus comprising a first carrier device, wherein the first carrier device is configured to receive data sent from a control module of the peripheral apparatus, to modulate the data into an analog signal, and to couple an amplified analog signal onto an interface harness of the peripheral apparatus after performing a power amplification on the analog signal, so as to generate a carrier signal;
• an electric vehicle comprising a second carrier device, wherein the second carrier device is configured to determine whether the carrier signal sent from the peripheral apparatus is detected at the interface harness and whether the carrier signal is correct when the electric vehicle is powered on, to receive the carrier signal via the interface harness when the carrier signal is detected and the carrier signal is correct, to perform a coupling and a filtering on the carrier signal to convert the carrier signal into a standard carrier signal and to demodulate the standard carrier signal into a digital signal to obtain information about the peripheral apparatus.

(canceled)

The carrier communication system according to 11, wherein the peripheral apparatus is a charging pile, and the interface harness is a CP signal harness of a charging gun of the charging pile.

(canceled)

(canceled)