RELAY DEVICE, SLEEP CONTROL METHOD, AND SLEEP CONTROL PROGRAM

To improve power-saving functions in in-vehicle systems.SOLUTION: A relay device is used in an in-vehicle system with three or more in-vehicle devices. The relay device includes a state transition unit that shifts the relay device, which is in a sleep state, to a wake-up state when a first wake-up r...

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Bibliographische Detailangaben
Hauptverfasser:	ASHIBE KENTARO, KUROYA YOSHINOBU, ISHIZUKA SHU, OTSU TOMOHIRO, URAYAMA HIROSHI, KAWAUCHI TAKEHIRO, ITATSU YUICHIRO, KURE DARUMAWAN, ISHII DAIGO, ANDO HIROYA, SUGIYAMA KAZUYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PERFORMING OPERATIONS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	To improve power-saving functions in in-vehicle systems.SOLUTION: A relay device is used in an in-vehicle system with three or more in-vehicle devices. The relay device includes a state transition unit that shifts the relay device, which is in a sleep state, to a wake-up state when a first wake-up request is received from a first in-vehicle device among the three or more in-vehicle devices; and a sleep control unit that selects a second in-vehicle device from among the in-vehicle devices other than the first in-vehicle device and sends a second wake-up request to the second in-vehicle device to shift the second in-vehicle device to the wake-up state.SELECTED DRAWING: Figure 2 【課題】車載システムにおける省電力機能を向上させる。【解決手段】中継装置は、３つ以上の車載装置を備える車載システムにおいて用いられる中継装置であって、前記３つ以上の車載装置のうちの第１の車載装置から第１のウェイクアップ要求を受信した場合、スリープ状態である前記中継装置をウェイクアップ状態へ遷移させる状態遷移部と、前記第１の車載装置以外の前記車載装置の中から第２の車載装置を選択し、前記第２の車載装置を前記ウェイクアップ状態へ遷移させるための第２のウェイクアップ要求を前記第２の車載装置へ送信するスリープ制御部とを備える。【選択図】図２