PROBLEM TO BE SOLVED: To provide an alarm sound generation direction notification system which is easy in attachment, and whose identification accuracy of an alarm sound generation direction hardly depends on a vehicle body shape.SOLUTION: An alarm sound generation direction notification system 1 comprises: a box body 10 fixed to an external face of a vehicle body; first and second microphones 20, 30 which are accommodated in the box body 10 in proximity therewith, and have directivity; an identification part 40 which identifies a generation direction of an alarm sound of an emergency vehicle on the basis of sounds which are detected by the first and second microphones 20, 30; and a notification part 50 which notifies a driver of the generation direction of the alarm sound which is identified by the identification part 40. The first microphone 20 is arranged while directing the directivity to a front part of the vehicle, and the second microphone 30 is arranged while directing the directivity to a rear part of the vehicle. The identification part 40 identifies whether the generation direction of the alarm sound is in the front part or the rear part on the basis of a difference between sound volume levels which are detected by the first and second microphones 20, 30.SELECTED DRAWING: Figure 1

    【課題】取り付けが容易で、且つ警報音の発生方向の識別精度が車体形状に依存し難い警報音の発生方向報知システムを提供する。【解決手段】警報音の発生方向報知システム1は、車体外面に固定された筐体10と、筐体10内に近接して収容された指向性を有する第1及び第2のマイクロフォン20,30と、第1及び第2のマイクロフォン20,30により検出した音に基づき、緊急車両の警報音の発生方向を識別する識別部40と、識別部40で識別した警報音の発生方向を運転者に報知する報知部50と、を備える。第1のマイクロフォン20は、車両の前方に指向性を向けて配置され、第2のマイクロフォン30は、車両の後方に指向性を向けて配置される。識別部40は、第1及び第2のマイクロフォン20,30で検出した音の音量レベルの相違に基づき、警報音の発生方向が前方であるか後方であるかを識別する。【選択図】図1


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    Title :

    ALARM SOUND GENERATION DIRECTION NOTIFICATION SYSTEM


    Additional title:

    警報音の発生方向報知システム


    Contributors:

    Publication date :

    2016-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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