ON-VEHICLE COMMUNICATION RELAY DEVICE

To reduce traffic in a single communication line.SOLUTION: Devices 4, 5 are interposed between a plurality of first devices and a single second device mounted on a vehicle and relay data frames transmitted from the plurality of first devices to the second device, and comprise: receiving units 41, 51...

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Bibliographic Details
Main Authors FURUHASHI SATOSHI, YOKOTA TOMONORI
Format Patent
LanguageEnglish
Japanese
Published 25.03.2021
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Summary:To reduce traffic in a single communication line.SOLUTION: Devices 4, 5 are interposed between a plurality of first devices and a single second device mounted on a vehicle and relay data frames transmitted from the plurality of first devices to the second device, and comprise: receiving units 41, 51 that receive the plurality of frames transmitted from the plurality of first devices; transmission destination determination units 42, 52 that determine whether or not a transmission destination of each of the frames is the second device based on the plurality of received frames; frame integration units 43, 53 that extract, from the frames whose transmission destinations are determined to be the second device, data included in a first data area and acquired by the plurality of first devices and identification data for identifying a transmission source and a transmission destination of data included in a second area to generate an integrated frame that is a single new frame; and transmission units 44, 54 that transmit the generated integrated frame to the second device.SELECTED DRAWING: Figure 3 【課題】単一の通信線におけるトラフィックを低減する。【解決手段】車両に搭載された複数の第1装置と単一の第2装置との間に介装され、複数の第1装置のそれぞれから第2装置に送信されるデータフレームを中継する装置4,5は、複数の第1装置から送信された複数のフレームを受信する受信部41,51と、受信された複数のフレームに基づいて、それぞれのフレームの送信先が第2装置であるか否かを判定する送信先判定部42,52と、送信先が第2装置であると判定されたフレームのそれぞれから、第1データ領域に含まれる複数の第1装置のそれぞれで取得されたデータと第2領域に含まれるデータの送信元および送信先を特定する識別データとを抽出して単一の新たなフレームである統合フレームを生成するフレーム統合部43,53と、生成された統合フレームを第2装置に送信する送信部44,54とを備える。【選択図】図3
Bibliography:Application Number: JP20190168244