The control system of acoustic hood based on audience number analysis

Abstract

The invention relates to a sound-reflecting cover control system based on the analysis of the number of audiences, comprising: a stage sound-reflecting cover, which is composed of three parts: an upper-top sound-reflecting plate, a rear-reflecting plate and a side-reflecting sound plate, and is used for utilizing natural sound energy. There is no need to use amplifying equipment to avoid sound distortion. The upper top acoustic panel, the rear acoustic panel and the side acoustic panel adopt a composite aluminum honeycomb structure, which is composed of a pre-formed box-shaped panel, a back panel and a The aluminum alloy honeycomb core material is hot-pressed and compounded; the anti-sound cover lifting mechanism is connected with the stage anti-sound cover, and is used to lower the stage acoustic cover to close the air above the stage when the stage anti-sound cover is used. When the stage sound-reflecting cover is not used, the stage sound-reflecting cover is vertically suspended into the storage space above the stage. According to the present invention, the automation level of the control of the acoustic hood can be improved.

Description

technical field [0001] The invention relates to the field of stage acoustic enclosures, in particular to an acoustic enclosure control system based on audience number analysis. Background technique [0002] The acoustic enclosure is an indispensable architectural acoustic structure for professional concert halls, and it is a device that improves the acoustic conditions of the theater during band performances or solo performances. The acoustic enclosure is generally composed of three parts: the upper top acoustic panel, the rear acoustic panel and the side acoustic panel, which can make full use of the limited natural sound energy without using amplifying equipment to avoid sound distortion. The anti-acoustic panels that make up the anti-acoustic cover can be suspended vertically above the stage, or lowered to close the stage when in use, so that the audience can enjoy the authentic top-level concert. The engineering aluminum honeycomb panel (anti-sound panel) for the acoust...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that it is difficult to choose the timing of the stage anti-acoustic enclosure lifting, the present invention provides an anti-acoustic enclosure control system based on the analysis of the number of audience members. For the anti-acoustic enclosures that improve the acoustic conditions of the stage, the lifting control based on the analysis results of the number of audience members is adopted. system, thereby improving the intelligence of stage control; an adaptive automatic adjustment mechanism for binarization thresholds is established, especially the image thresholds of the neighborhood are used for adjustment, which provides convenience for subsequent image processing; the self-adaptive The image sharpening processing mode ensures the effect of image sharpening; based on the smoothness detection results of the output image of the visible light camera and the distribution of gray values, the automatic triggering of the automatic focusing operation of the visible light camera is realized, which improves the performance of the visible light camera. level of intelligence