High-precision directional outdoor sound directional transmission device

Abstract

The invention relates to a high-precision directional outdoor sound directional transmission device which comprises a bearing base, a lifting driving column, a bearing column, a driving guide rail, aswing mechanism, a bearing cavity, a directional loudspeaker, a distance measuring device, a sound sensor, a noise sensor, a sound guide cone and a control circuit, wherein the upper end face of the bearing base is mutually connected with the lifting driving column; at least two driving guide rails are evenly distributed on the outer side face of the bearing column, the bearing cavity wraps the bearing column and is in sliding connection with the driving guide rails on the outer surface of the bearing column through a swing mechanism, the bearing cavity is evenly divided into at least three working chambers, and at least one directional loudspeaker is arranged in each working chamber. According to the invention, on one hand, the integration degree is high, the environmental adaptability isstrong, the requirements of operation and use of various loads in an outdoor environment can be effectively met, and on the other hand, the direction of sound propagation operation can be accuratelypositioned while audio constant propagation is effectively realized, audio diffusion, audio leakage and noise pollution to the surrounding environment are prevented.

Description

technical field [0001] The invention relates to a loudspeaker structure, in particular to a high-precision directivity outdoor sound directional transmission device. Background technique [0002] At present, in outdoor meetings, outdoor activities, field construction and other occasions, in order to improve the transmission distance and quality of sound waves, and at the same time prevent noise pollution caused by sound wave diffusion, information leakage, and sound wave transmission quality and distance caused by mutual interference of sound waves in complex environments Directional loudspeakers have been widely used due to disadvantages such as drop, but in actual use, it is found that the current directional loudspeaker equipment is often complex in structure and has relatively high requirements for the use site, which severely limits the flexibility and convenience of use. During the operation, it can only operate in a fixed mode according to the preset working parameter...

AI Technical Summary

Problems solved by technology

[0002] At present, in outdoor meetings, outdoor activities, field construction and other occasions, in order to improve the transmission distance and quality of sound waves, and at the same time prevent noise pollution caused by sound wave diffusion, information leakage, and sound wave transmission quality and distance caused by mutual interference of sound waves in complex environments Directional loudspeakers have been widely used due to disadvantages such as drop, but in actual use, it is found that the current directional loudspeaker equipment is often complex in structure and has relatively high requirements for the use site, which severely limits the flexibility and convenience of use. During the operation, it can only operate in a fixed mode according to the preset working parameters, and cannot flexibly adjust the operating status and parameters of the equipment according to the requirements of the on-site use environment, sound propagation distance, direction, etc., resulting in the operation of the current directional sound propagation equipment. The directivity accuracy is poor, and the power of the device cannot be flexibly adjusted according to the needs of the use. In addition, the current directional sound transmission equipment is often operated independently, and it is impossible to realize the online operation of multiple devices to meet the wide range of sound requirements. The need for directional transmission operations, and limits the flexibility and convenience of sound directional transmission equipment operation

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