The present invention provides a speaker system for a crosswalk announcement comprising: at least one ultrasonic speaker installed on a support target for announcement for people crossing or waiting for a signal at a crosswalk; a low-frequency speaker capable of transmitting the same announcement as the ultrasonic speaker, and mounted on one side of the ultrasonic speaker to mask living noises; and a control part that controls an operation of the ultrasonic speaker and the low-frequency speaker. Therefore, the present invention is capable of significantly reducing an ultrasonic speaker announcement speech articulation attenuation phenomenon.

    본 발명은 횡단보도에서 신호대기 중 혹은 횡단하는 사람에 대한 안내방송을 위해 지지대상에 설치된 적어도 하나의 초음파 스피커; 상기 초음파 스피커와 동일한 안내방송을 송출할 수 있으며, 상기 초음파 스피커의 일측에 장착되어 생활소음을 마스킹하는 저주파수 스피커; 및 상기 초음파 스피커 및 저주파수 스피커의 동작을 제어하는 제어부를 포함하는 횡단보도 안내방송용 스피커 시스템을 제공한다.


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    Title :

    SPEAKER SYSTEM FOR CROSSWALK ANNOUNCEMENT


    Additional title:

    횡단보도 안내방송용 스피커 시스템


    Contributors:
    JE YOUNG HO (author)

    Publication date :

    2022-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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