Portable shooting and recording device for speech content based on optical zoom

Abstract

The invention discloses a portable shooting and recording device for speech content based on optical zoom, which includes: an image acquisition device and at least one mobile terminal; each mobile terminal is communicatively connected with the image acquisition device and controls the image acquisition device to collect video that meets the requirements. images; and the image acquisition device transmits the collected video images to the mobile terminal for storage; the image acquisition device includes: a zoomable image acquisition device, a control system for the image acquisition device, and a support structure supporting the image acquisition device; the image acquisition device and control system Fixed connection, and the control system is connected to the mobile terminal for communication, and the image acquisition equipment is movable connected to the supporting structure. The above device can solve the problem in the prior art that users are required to raise their mobile phones to take photos or record videos from time to time during meetings, freeing the user's hands, and can more effectively obtain clear video images.

Description

Technical field [0001] The invention belongs to mechanical technology, and in particular relates to a portable photographing and recording device for speech content based on optical zoom. Background technique [0002] With the rapid development of science and technology, there are more and more occasions for academic exchanges and listening to reports. For immediate occasions such as important lectures, reports, speeches or presentations, listeners usually want to save important lecture content in the form of photos or videos so that they can watch or learn again after the meeting. However, there is currently no suitable audiovisual recording equipment that can provide convenient functions for recording important meeting content. Common video pens, although relatively light, cannot focus and must be held or worn on the chest, their viewing angle and clarity are severely restricted, and the recorded video needs to be copied through a computer or transferred to the user's mobile p...

AI Technical Summary

Problems solved by technology

[0004] (1) When taking out the mobile phone and turning on the camera function, important meeting content may be missed;

[0005] (2) You need to occupy both hands when shooting, and the captured image may be blurry or there may be video shake;

[0006] (3) Under normal circumstances, in order to make the on-site projection screen or the conference podium occupy a suitable area on the mobile phone display, it is necessary to adjust the focal length of the mobile phone camera, and when the mobile phone display is turned off, the focal length is automatically restored to its original state, and it needs to be adjusted again when shooting again. Focus, such repeated adjustments will not only cause a time delay, but also easily cause serious consumption of the limited power of the mobile phone;

[0007] (4) The digital magnification of the mobile phone will actually reduce the definition, and its effect is far inferior to that of optical zoom

If special recording equipment is used, it is expensive and not easy to carry; during the meeting, if the content of other locations needs to be recorded, there must be a staff member to make adjustments, and the work process is more cumbersome

Images