JPWO2019178626A5

JPWO2019178626A5 -

Info

Publication number: JPWO2019178626A5
Application number: JP2021500316A
Authority: JP
Publication date: 2022-02-28
Anticipated expiration: 2039-03-19

Description

フレーム構造２００が固定軸５４の周りを回転されるとき、ケーブル６１は、滑車６６の円周で巻き戻され、これは、マイクロフォンホルダ６５の変位をもたらし、その結果、マイクロフォン１０のほぼ螺旋状の動きをもたらす。その際に、移動するマイクロフォン１０の半径方向の位置は、フレーム構造の測定された角度位置に明確に関連付けられており、フレーム構造の各々の全回転で、マイクロフォンは、滑車６６の円周に対応する距離だけ変位（スライド）する。フレーム構造は、先行する実施形態と同様にハウジング２１３を有し、ハウジング２１３は、ケーブル６１、偏向ローラ６３、滑車６６、ガイドロッド６２、マイクロフォンホルダ６５からなるケーブル牽引装置６０を取り囲み、マイクロフォン１０のための細長い開口部（スロット）を有する。それ以外は、図３に示す構成は、図２の構成と同じである。 As the frame structure 200 is rotated around the fixed shaft 54, the cable 61 is unwound around the circumference of the pulley 66, which results in a displacement of the microphone holder 65, resulting in a nearly spiral of the microphone 10. Bring movement. In doing so, the radial position of the moving microphone 10 is clearly associated with the measured angular position of the frame structure, and at each full rotation of the frame structure, the microphone corresponds to the circumference of the pulley 66 . Displace (slide) by the distance you want. The frame structure has a housing 213 similar to the preceding embodiment, in which the housing 213 surrounds a cable traction device 60 consisting of a cable 61, a deflection roller 63, a pulley 66 , a guide rod 62, and a microphone holder 65, the microphone 10. Has an elongated opening (slot) for. Other than that, the configuration shown in FIG. 3 is the same as the configuration shown in FIG.

Claims

The method according to claim 10 or 11 .
It also has the step of transmitting the detected measurement data to the computing unit, especially the cloud computing service, over the communication connection.
The method in which the calculation of sound source intensity at one or more reconstruction points is performed by the calculation unit.

In a device that identifies the spatial position of a sound source on any surface by capturing measured quantities of the sound field using two microphones (10, 11).
The first microphone (10) moves on the path and the second microphone (11) is fixed.
The relevant acoustic signal is transmitted to the moving unit along with the moving first microphone (10).
The unit is
A sensor system for detecting the spatial coordinates of the moving first microphone (10), and
A data acquisition device that acquires data from both microphones (10, 11),
A sensor (16) for detecting the spatial coordinates of the moving first microphone (10), and
Power supply device (49) and
Have,
The related acoustic signal is further transferred to the data processing device (20).
The data processing device (20) is
It has a display and operation surface for displaying the result in the form of superimposing the measurement control, the image of the measurement scene detected by the camera (21), and the reconstructed image of the sound source.
A device comprising the moving first microphone (10), the fixed second microphone (11) and the unit moving together being integrated into a frame structure (100, 200). ..

In the apparatus according to claim 19 ,
The sensor system for detecting the spatial coordinates of the moving first microphone (10) is realized by a rotation angle sensor (16) for measuring a rotation angle with respect to the fixed rotation axis (54). A device characterized by.

In the apparatus according to claim 19 ,
The sensor system for detecting the spatial coordinates of the moving first microphone (10) includes an angular velocity sensor of at least one axis coaxially aligned with the rotation axis (54) of the frame structure (100, 200) and three. A device characterized by being realized by an accelerometer of the shaft.