Portable speech content shooting and recording device based on optical zooming

Abstract

The invention discloses a portable speech content shooting and recording device based on optical zooming. The device comprises an image acquisition device and at least one mobile terminal. Each mobileterminal is in communication connection with the image acquisition device and controls the image acquisition device to acquire video images meeting requirements. The image acquisition device transmits the acquired video image to the mobile terminal for storage. The image acquisition device comprises variable-focus image acquisition equipment, a control system of the image acquisition equipment and a supporting structure for supporting the image acquisition equipment. The image acquisition device is fixedly connected with the control system, the control system is in communication connection with the mobile terminal, and the image acquisition device is movably connected with the supporting structure. According to the device, the problem that a user needs to lift a mobile phone irregularly to take pictures or record videos in a conference in the prior art can be solved, the two hands of the user are liberated, and clear video images can be obtained more effectively.

Description

technical field [0001] The invention belongs to mechanical technology, in particular to a portable shooting 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 conducting academic exchanges and listening to reports. For immediate occasions such as important lectures, reports, speeches, or demonstrations, audiences usually want to save important speech content in the form of photos or videos, so as to watch or learn again after the meeting. However, currently there is no suitable audio-visual recording equipment that can provide a convenient function of recording important content of the meeting. Although the common video pen is relatively light, it cannot focus and must be held or worn on the chest. Its viewing angle and clarity are severely limited, and the recorded video needs to be copied through the computer or transferred to the user's mo...

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

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