Adjustable acoustic array bracket for three-dimensional space sound source localization

Abstract

The invention discloses an adjustable acoustic array bracket for three-dimensional space sound source localization. The adjustable acoustic array bracket comprises a supporting underframe, a rotatingarm arranged on the supporting underframe and a sensor mounting seat for mounting a sensor for testing, and is characterized in that the supporting underframe comprises a supporting rod extending in the vertical direction; the rotating arm is arranged on the supporting rod in a sleeving mode and can rotate relative to the supporting rod, the height of the rotating arm on the supporting rod can beadjusted, the rotating arm extends in the radial direction of the rotating circumference of the rotating arm, and the sensor mounting seat can be arranged on the rotating arm in the length extending direction of the rotating arm in a position-adjustable mode. According to the bracket, the height of the rotating arm on the supporting rod can be adjusted, so that the axial height of the array is adjusted; the rotating arm can be rotationally arranged relative to the supporting rod, so that the circumferential angle adjustment of the array is realized; and the position of the sensor mounting seatcan be adjusted in the length extending direction of the rotating arm, and therefore radial adjustment of the array is achieved.

Description

technical field [0001] The invention relates to the technical field of sound source localization, in particular to an adjustable sound array support for three-dimensional sound source localization. Background technique [0002] With the rapid development of the transportation field and the rapid expansion of urban scale, the vehicle noise of urban overpasses, the noise of municipal construction machinery and the noise of urban rail operation will all have an impact on the lives of surrounding residents. Noise pollution can affect people's comfort if it is mild, and cause noise-induced hidden deafness if it is severe. The health hazards caused by traffic noise pollution have become an urgent problem to be solved. To solve the problem of traffic noise pollution, it is first necessary to accurately locate and identify the source of the sound source, identify the type and noise level of the sound source, analyze and evaluate the relevant noise standards, and implement relevant ...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing non-adjustable arrays lack the flexibility of array transformation, and the existing adjustable array brackets also have certain limitations. Some adjustable acoustic array brackets cannot realize the height adjustment of each array point position, and the application is limited.

Some brackets can achieve a certain range of angle adjustment, but the angle adjustment range on the same plane is limited, the adjustment space is small, and the free adjustment of multiple microphones on the same plane cannot be realized

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