Sound-reflecting cover control system based on audience number analysis

Abstract

The invention relates to a sound-reflecting cover control system based on an audience number analysis. The system comprises a stage sound-reflecting cover and a sound-reflecting cover elevation mechanism, the stage sound-reflecting cover is formed by an upper top sound-reflecting plate, a rear sound-reflecting plate and a side sound-reflecting plate and used for employing the natural sound energywithout using loudspeaking equipment and avoiding sound distortion, the upper top sound-reflecting plate, the rear sound-reflecting plate and the side sound-reflecting plate employ composite aluminumhoneycomb structures and are formed by pre-molded box-shaped panels, backboards and aluminum alloy honeycomb core materials through hot-pressing composite molding, and the sound-reflecting elevation mechanism is connected with the stage sound-reflecting cover and used for decreasing the stage sound-reflecting cover to seal the upper space of the stage during usage of the stage sound-reflecting cover and vertically suspending the stage sound-reflecting cover in a storage space above the stage when the stage sound-reflecting cover is not in use. According to the system, the automation level of the sound-reflecting cover control can be improved.

Description

technical field [0001] The invention relates to the field of stage anti-acoustic enclosures, in particular to an anti-acoustic enclosure control system based on audience number analysis. Background technique [0002] The anti-acoustic cover is an indispensable architectural acoustic structure for professional concert halls, and it is a device to improve the acoustic conditions of the theater during band performances or solo performances. The anti-acoustic cover is generally composed of three parts: the top anti-sound board, the rear anti-sound board and the side anti-sound board, 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 enclosure can be suspended vertically above the stage, or can be lowered to close the air above the stage when in use, so that the audience can enjoy the authentic top concert. The engineering aluminum honeycomb panel (anti...

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