A large zoom integrated camera and its automatic control method

A camera and large zoom technology, applied in the field of cameras, can solve the problems of long focusing time, inability to meet the user's requirements for rapid focusing, inconvenient installation, etc., and achieve the effect of fast automatic focusing

Active Publication Date: 2020-09-18
FOSHAN HUAGUO OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-definition remote monitoring components on the market mainly include: high-magnification lens, automatic (manual) focus module and network camera. The product structure of these three parts is a single structure, and it needs to be combined with three components to debug and use. This structure causes inconvenience in installation
Moreover, the focusing time of the existing large zoom integrated camera is too long, which cannot meet the user's requirements for fast focusing.

Method used

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  • A large zoom integrated camera and its automatic control method
  • A large zoom integrated camera and its automatic control method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0051] Such as figure 1 As shown, a large zoom integrated camera includes a lens barrel, and the lens barrel is provided with an optical lens, a focusing module, a main control module, a COMS sensor module and a rear control board interface module, and the main control module is respectively connected to the The COMS sensor module, the focusing module and the rear control board interface module are connected, and the focusing module is connected with the optical lens;

[0052] The focusing module is used to control the optical lens to focus, and perform fast autofocus according to the focus instruction;

[0053] The main control module is used to send the focus command and store the analog-to-digital conversion voltage value corresponding to the preset position command to the focusing module, and send the corresponding analog-to-digital conversion voltage value to the pan / tilt according to the calling command of the preset position;

[0054] The focus module includes an auto fo...

no. 2 example

[0059] Such as figure 2 As shown, an automatic control method for a large zoom integrated camera, comprising the following steps:

[0060] C1. Perform focus self-test.

[0061] Among them, C1 includes C11~C14:

[0062] C11. The processor controls the motor to move from the near end to the far end, and adjust the aperture and back focus during the movement.

[0063] C12. The processor controls the motor to move to the near end, and after obtaining the first analog-to-digital conversion voltage value Z1 on the potentiometer, controls the motor to perform clear focus processing, thereby obtaining the second analog-to-digital conversion voltage value F1.

[0064] Wherein, C12 includes steps C121-C123:

[0065] C121. Carry out mobile search according to the preset moving direction, and calculate the image definition value of each position where the motor is moving, and judge whether the image definition value has increased. If it increases, obtain the highest image definition v...

no. 3 example

[0088] This embodiment is further limited on the basis of Embodiment 2. The difference of this embodiment is that it includes the following steps:

[0089] D1. The main control module obtains the preset position setting command, compares the data format of the preset position setting command with the preset data command format, and judges whether the data format of the preset position setting command is correct, and after the judgment is correct, the The analog-to-digital conversion voltage value corresponding to the preset position command is stored in the preset voltage value storage area.

[0090] D2. After receiving the calling command of the preset position input by the user, the main control module obtains the analog-to-digital conversion voltage value from the voltage value storage area according to the calling command, and sends the analog-to-digital conversion voltage value to the pan / tilt.

[0091] The current preset call command is directly sent to the pan / tilt, and...

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Abstract

The invention discloses a large zoom integrated camera and a control method thereof. The camera includes a lens barrel, and the lens barrel is provided with an optical lens, a focusing module, a main control module, a COMS sensor module and a rear control board interface module. The main control module is respectively connected with the COMS sensor module, the focus module and the rear control panel interface module, and the focus module is connected with the optical lens; the focus module is used to control the focus of the optical lens, and perform fast autofocus according to the focus instruction ; The main control module is used to send the focus command and store the analog-to-digital conversion voltage value corresponding to the preset position command to the focusing module, and send the corresponding analog-to-digital conversion voltage value to the pan / tilt according to the call command of the preset position. The invention is convenient for installing the camera by combining all the parts of the camera, and the camera can quickly perform automatic focusing, which meets the requirements of users for fast automatic focusing, and can be widely used in the field of cameras.

Description

technical field [0001] The invention relates to the field of cameras, in particular to a large zoom integrated camera and an automatic focusing method thereof. Background technique [0002] With the advancement of safe cities, forest fire prevention, and smart city construction, security products are rapidly popularized in various industries, with diversified applications and diverse environments. my country's security video surveillance industry is gradually developing towards networking, high-definition, and intelligent. The high-definition lens with long focal length and large zoom has become an indispensable part in forest security, maritime management, railway oil field monitoring and other fields. It requires a higher lens magnification and a wider and farther shooting distance. At present, the high-definition remote monitoring components on the market mainly include: high-magnification lens, automatic (manual) focus module and network camera. The product structure of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/232
CPCH04N23/54H04N23/55H04N23/67H04N23/60
Inventor 郑有杰陈耀明朱清林郭建兵
Owner FOSHAN HUAGUO OPTICAL
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