AIR CONDITIONING SYSTEM AND TRANSMISSION LINE ESTIMATION METHOD
To suppress a decrease in communication speed while reducing the influence of noise.SOLUTION: An air conditioning system includes an outdoor unit and an indoor unit, and the outdoor unit and the indoor unit communicate with each other by a multi-carrier signal, and when a transmission line estimatio...
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Zusammenfassung: | To suppress a decrease in communication speed while reducing the influence of noise.SOLUTION: An air conditioning system includes an outdoor unit and an indoor unit, and the outdoor unit and the indoor unit communicate with each other by a multi-carrier signal, and when a transmission line estimation unit 522 determines that the transmission line estimation is necessary to be executed by a transmission line estimation necessity determination unit 41, the transmission line estimation unit 522 executes transmission line estimation for evaluating the signal quality of each subcarrier of the multicarrier signal, and determines a tone map. The transmission line estimation necessity determination unit 41 determines that it is necessary to execute the transmission line estimation when the communication state between the outdoor unit and the indoor unit deteriorates.SELECTED DRAWING: Figure 4
【課題】ノイズの影響を低減しつつ、通信速度の低下を抑制する。【解決手段】室外機と、室内機とを備え、室外機と室内機とがマルチキャリア信号によって通信する空気調和システムにおいて、伝送路推定部522は、伝送路推定要否判定部41によって伝送路推定の実行が必要と判定されると、マルチキャリア信号のサブキャリア毎の信号品質を評価する伝送路推定を実行し、トーンマップを決定する。伝送路推定要否判定部41は、室外機と室内機との間の通信状態が悪化した場合に伝送路推定の実行が必要と判定する。【選択図】図4 |
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