To cause a listener of a warning sound to easily recognize that a vehicle is gradually approaching a target.SOLUTION: A warning sound generation device 20 comprises a distance information acquisition section 21 and a sound generation section 22. The distance information acquisition section 21 acquires distance information from a distance detection device 30 which detects a distance between a vehicle 100 and a target. The sound generation section 22 generates a first warning signal a1 and a second warning signal a2 on the basis of the distance information. The sound generation section 22 generates a first warning sound based on the first warning signal a1 to the inside of a cabin of the vehicle 100 and generates a second warning sound based on the second warning signal a2 to the outside of the vehicle 100. The sound generation section 22 changes an amount of change of volumes of the first warning sound and the second warning sound on a unit distance basis according to the distance.SELECTED DRAWING: Figure 1

    【課題】車両が対象物に次第に近付いていることを警告音の聴取者に容易に認識させる。【解決手段】警告音発生装置20は、距離情報取得部21と、発音部22とを備える。距離情報取得部21は、車両100と対象物との距離を検出する距離検出装置30から距離情報を取得する。発音部22は、距離情報に基づいて、第1警告信号a1及び第2警告信号a2を発生する。発音部22は、第1警告信号a1に基づく第1警告音を車両100の車室内に対して発音し、第2警告信号a2に基づく第2警告音を車両100の外部に対して発音する。発音部22は、第1警告音及び第2警告音の音量の単位距離当たりの変化量を距離に応じて変化させる。【選択図】図1


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    Title :

    WARNING SOUND GENERATION DEVICE


    Additional title:

    警告音発生装置


    Contributors:

    Publication date :

    2025-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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