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A control circuit for camera

A technology for controlling circuits and cameras, applied in the field of cameras, can solve the problems of incomparable electric light sources and astonishing energy loss, and achieve the effects of saving lighting energy, improving clarity, and saving construction costs

Inactive Publication Date: 2018-02-06
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with the luminous efficiency of LED, the electric light source in the past is not the same, and can save huge energy, but after all, each city may be equipped with hundreds of thousands of security cameras and corresponding lighting LED lights, and its energy consumption is still amazing

Method used

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  • A control circuit for camera
  • A control circuit for camera
  • A control circuit for camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , a control circuit for a camera, comprising: an LED lighting lamp 1, an image sensor 2, a video capture card 3 and a computer 4. An LED lighting lamp 1 is arranged in front of the image sensor 2, and the image sensor 2 is connected with a video capture card 3 and a computer 4 in sequence.

[0028] Among them, the LED lighting lamp 1 is driven by a triangular wave or sawtooth wave electrical signal to generate a beam of triangular wave or sawtooth wave lighting light F, which generates reflected light S after irradiating the measured object 5, and the reflected light S is irradiated into the image sensor 2, and the image sensor 2. Receive the reflected light, and transfer it into a video signal and transmit it to the video acquisition card 3; the video acquisition card 3 converts the video signal into a digital image signal and transmits it to the computer 4, and the computer 4 obtains each of one or several triangle waves or sawtooth wave cycles frame ima...

Embodiment 2

[0044] see figure 2 , a control circuit for a camera, the difference between this control circuit and embodiment 1 is that the image sensor 2 is specifically a CCD image sensor 21, that is, the control circuit includes: LED lighting 1, CCD image sensor 21, video capture card 3 and computer 4. An LED illuminating lamp 1 is arranged in front of the image sensor 2, and a CCD image sensor 21 is connected with a video capture card 3 and a computer 4 in sequence.

[0045] Among them, the LED lighting lamp 1 is driven by a triangular wave or sawtooth wave electrical signal to generate a beam of triangular wave or sawtooth wave lighting light F, which generates reflected light S after irradiating the measured object 5, and the reflected light S is irradiated into the CCD image sensor 21, and the CCD The image sensor 21 receives the reflected light, and converts it into a video signal and transmits it to the video acquisition card 3; the video acquisition card 3 converts the video si...

Embodiment 3

[0050] see image 3, a control circuit for a camera, the difference between the control circuit and embodiment 1 is that the image sensor 2 is specifically a CMOS image sensor 22, that is, the control circuit includes: an LED lighting lamp 1, a CMOS image sensor 22, a video capture card 3 and computer 4. An LED illuminating lamp 1 is arranged in front of the image sensor 2, and a CMOS image sensor 22 is connected with a video capture card 3 and a computer 4 in sequence.

[0051] Among them, the LED lighting lamp 1 is driven by a triangular wave or sawtooth wave electrical signal to generate a beam of triangular wave or sawtooth wave lighting light F, which generates reflected light S after irradiating the object 5 to be measured, and the reflected light S is irradiated into the CMOS image sensor 22. The image sensor 22 receives the reflected light, and converts it into a video signal and transmits it to the video acquisition card 3; the video acquisition card 3 converts the v...

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Abstract

The invention discloses a control circuit for a camera, which relates to the field of the camera. The control circuit includes: an LED lighting lamp is driven by a triangular wave or a sawtooth wave electric signal to generate a beam of triangular wave or sawtooth wave lighting light, which is irradiated to a measured object Afterwards, reflected light is generated, and the reflected light is irradiated into the image sensor; the image sensor receives the reflected light, and transmits it into a video signal and transmits it to the video acquisition card; the video acquisition card converts the video signal into a digital image signal Transmission to the computer; the computer acquires each frame image of one or several triangular wave or sawtooth wave cycles, and performs sliding frame accumulation and averaging on each frame image within the time length to obtain an image signal with a higher gray scale, and the computer outputs image. The invention saves illumination energy and greatly improves the definition of images; it is not necessary to greatly refit the existing image sensor, which saves construction costs.

Description

technical field [0001] The invention relates to the field of cameras, in particular to a control circuit for cameras. Background technique [0002] Cameras are not limited to personal entertainment, but are also widely used in various fields, such as: security cameras all over the city, these security cameras basically rely on LED lighting. [0003] Compared with the luminous efficiency of LED, the electric light source in the past is not the same, and can save huge energy, but after all, each city may be equipped with hundreds of thousands of security cameras and corresponding lighting LED lights, and its energy consumption is still amazing. Contents of the invention [0004] The present invention provides a control circuit for a camera. The present invention reduces the illumination light source of the camera and improves the definition of the camera. See the following description for details: [0005] A control circuit for a camera, comprising: an LED lighting lamp, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/235
Inventor 李刚胡雅佳王怀乐彭瑶徐思佳林凌
Owner TIANJIN UNIV
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