Pickup device for outdoor long-distance use

Abstract

The invention discloses a pickup device for outdoor long-distance use, and aims to provide a pickup device capable of outdoor long-distance use for voice acquisition. The main points of the technical scheme lie in that the pickup device includes a base and at least two groups of reflective faces arranged on the base in a staggered manner; pickup tubes corresponding respectively to the reflective faces are disposed on the base; the base is provided with a housing accommodating the pickup tubes; one end face of the housing is provided with through holes and the inner side wall is provided with a silencing structure; end portions of free ends of the pickup tubes are provided with first highly directive microphones; the end portions, connected with the base, of the pickup tubes are provided with second highly directive microphones opposite to the reflective faces; and at least one omnidirectional microphone is arranged between each first highly directive microphone and the corresponding second highly directive microphone. The longitudinal array arrangement of the pickup tubes in the application allows the feedback noise signals to be uniformly processed, and also enables the first highly directive microphones, the second highly directive microphones and a voice gathering structure to be highly directive and to fully receive voice signals of a target voice source.

Description

technical field [0001] The present invention relates to a sound pickup device, more precisely to a sound pickup device for remote use outdoors. Background technique [0002] Various video surveillance or video acquisition systems have been widely used in security, security, interview and other fields. Relying on various video surveillance or video capture systems, it is possible to accurately capture relevant personnel in long-distance videos, but it is difficult to perform long-distance voice capture when using video surveillance systems for long-distance shooting. The monitoring system can use language and dialogue information to analyze suspects, and the video acquisition system can record video and voice synchronously, which will greatly affect work efficiency. However, it is still extremely difficult to perform long-distance voice acquisition under the background noise conditions of the actual environment, especially in bad weather outdoors. Contents of the invention...

AI Technical Summary

Problems solved by technology

Relying on various video surveillance or video capture systems, it is possible to accurately capture relevant personnel in long-distance videos, but it is difficult to perform long-distance voice capture when using video surveillance systems for long-distance shooting. The monitoring system can use language and dialogue information to analyze suspects, and the video acquisition system can record video and voice synchronously, which will greatly affect work efficiency

However, it is still extremely difficult to conduct long-distance voice acquisition under the background noise conditions of the actual environment, especially in bad weather outdoors.

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