ROADSIDE MACHINE
PROBLEM TO BE SOLVED: To provide a roadside machine that suppresses interference in an existing roadside machine, and communicates with an on-vehicle unit even when receiving electrical waves transmitted from equipment other than an existing roadside machine.SOLUTION: A roadside machine includes a t...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a roadside machine that suppresses interference in an existing roadside machine, and communicates with an on-vehicle unit even when receiving electrical waves transmitted from equipment other than an existing roadside machine.SOLUTION: A roadside machine includes a transmission unit for transmitting a signal to an on-vehicle unit, a reception unit for receiving a signal transmitted from the on-vehicle unit, a determination unit for determining whether or not the reception unit has received a signal transmitted from another roadside device, and a control unit for controlling transmission of electrical waves from the transmission unit so that the electrical waves transmitted by the transmission unit suppress interference in the other roadside machine when it is determined that a signal transmitted from the other roadside machine is received.SELECTED DRAWING: Figure 4
【課題】既存の路側機への干渉を抑制し、かつ、既存の路側機以外の機器が送信した電波を受信しても車載器との通信を行う路側機を提供する。【解決手段】この路側機は、車載器に信号を送信する送信部と、前記車載器から送信された信号を受信する受信部と、前記受信部が他の路側機から送信された信号を受信したか否かを判定する判定部と、前記他の路側機から送信された信号を受信したと判定された場合、前記送信部が送信する電波が前記他の路側機への干渉を抑制するように、前記電波の送信を制御する制御部と、を具備する構成を採る。【選択図】図４ |
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