ACOUSTIC GUIDING NETWORK SYSTEM INCLUDING ANNULAR ROUTE OR BRANCH ROUTE

• Main Author: KONDO MAMORU
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2015
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PHYSICS; PUBLIC ADDRESS SYSTEMS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

PROBLEM TO BE SOLVED: To provide a system which notifies a pedestrian of a network-shaped route including an annular route by repeatedly generating signal tones, and notifies the pedestrian of the whole direction of a walk range and the relation between the hazardous location and the pedestrian to safely guide the pedestrian.SOLUTION: In order to form an annular route by connecting a liner guide route, the order of circulation of the phase number order of speakers is prevented from collapsing before and after the junction point so that progressive waves of signals are smoothly joined. Moreover, a condition that the length of the annular route is set to an integral multiple of the wavelength of the progressive wave is satisfied. In order to satisfy the condition, the speaker position is adjusted, and at the same time, fine adjustment is performed so as to reduce variation in the speed of the progressive wave. 【課題】環状経路を含むネットワーク状経路に対して、歩行者に信号音を繰返し発生して経路を知らせて、歩行範囲の全体の方向、危険場所と歩行者の位置関係を知らせ、安全に誘導するようなシステムを提供する。【解決手段】線状誘導経路を接続して環状経路を形成するには、信号の進行波をなめらかに接続するため、スピーカの相番号順が巡回する順序を接続点の前後で崩れないようにする。また環状経路の経路長を、進行波の波長の整数倍にする条件を満足させる。これらの条件を満足させるためにスピーカ位置を調整すると同時に、進行波の進行速度の変動を少なくするように微調整する。【選択図】図１