POSITION DETECTION SYSTEM OF MOVING BODY

• Main Authors: KAWAI TADAO, TAKADA YOGO
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2015
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

PROBLEM TO BE SOLVED: To provide a position detection system of a moving body capable of correctly detecting a position of a moving body with a simple structure.SOLUTION: The invention relates to a system for detecting a position of a moving body capable of moving in a space of n (n is an integer of 1 or more and 3 or less) dimensions. The system comprises: at least (n+1) speakers installed in the space; a controller for driving the respective speakers; a microphone mounted on the moving body and detecting sound outputted from the speakers; and a calculation device for calculating the position of the moving body, on the basis of the sound detected by the microphone. The controller drives the speakers so that at least (n+1) speakers perform output operation for outputting the sound in a predetermined order with a predetermined time interval at least once, among the at least (n+1) speakers, and the calculation device calculates the position of the moving body, on the basis of time when the sound outputted in the output operation is detected by the microphone. 【課題】簡易な構成で移動体の位置を正確に検出することができる移動体の位置検出システムを提供する。【解決手段】本発明は、ｎ（ｎは１以上３以下の整数）次元の空間を移動可能な移動体の位置を検出するシステムであって、前記空間に配置される、少なくとも（ｎ＋１）個のスピーカと、前記各スピーカを駆動する制御装置と、前記移動体に搭載され、前記スピーカから出力された音を検出するマイクロホンと、前記マイクロホンで検出された音に基づいて、前記移動体の位置を算出する演算装置と、を備え、前記制御装置は、前記少なくとも（ｎ＋１）個のスピーカの中から、少なくとも（ｎ＋１）個のスピーカが、所定の時間間隔をおいて所定順序で音を出力する出力動作を少なくとも１回行うように駆動し、前記演算装置は、前記出力動作で出力された音を前記マイクロホンで検出した時刻に基づいて、前記移動体の位置を算出する。【選択図】図１