CN205901896U - But automatic focusing's internet protocol camera after control becomes doubly - Google Patents
But automatic focusing's internet protocol camera after control becomes doubly Download PDFInfo
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- CN205901896U CN205901896U CN201620853479.8U CN201620853479U CN205901896U CN 205901896 U CN205901896 U CN 205901896U CN 201620853479 U CN201620853479 U CN 201620853479U CN 205901896 U CN205901896 U CN 205901896U
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Abstract
The utility model provides a but automatic focusing's internet protocol camera after control becomes doubly, including camera module host system, by electric lens, a control module who is used for controlling electric lens automatic focusing of the control of this host system, this module is placed in between host system and the electric lens, and the electricity connection, electric lens by the change times motor that is used for driving the first focal length setting gear move of moving mirror with be used for driving that the first focus of moving mirror adjusts gear move zooms motor common drive. But automatic focusing's internet protocol camera after control becomes doubly through setting up a control module who is used for controlling electric lens automatic focusing, makes this module place in between host system and the electric lens, and will electric lens is by the mode that becomes times motor with zoom motor common drive, has realized internet protocol camera's automatic focusing, easy operation, and the real -time is high.
Description
Technical field
This utility model is related to web camera technical field, the net that can automatically focus on after more particularly, to a kind of control zoom
Network video camera.
Background technology
In existing routine safety monitoring, web camera is to be become with assembling fittings such as shell camera lenses by video camera module
Integral product.In conventional monitoring, it is currently mainly used tight shot and zoom lens, so-called tight shot refers to fixed focal length
Camera lens, it, according to different scene needs, matches the camera lens of different focal section.It is multiple that so-called zoom lens refer to that camera lens can have
Focal length, according to different scenes needs, selects focal length.Zoom lens are divided into the manual focusing lens and motorized zoom lenses.Adjust manually
Zoom lens, need to adjust the focal length of camera lens manually, adapt to different scenes；Motorized zoom lenses, carry out lens focusing by software.
Network camera module, typically all using the camera lens of fixed focal length, can only be carried out to the scene in fixed range at present
Monitoring；If using the camera lens of manual focusing, shooting generator terminal is needed to be adjusted manually, promptness is not high, operation pole not side
Just；If using motor-driven lenses, it is still necessary to focusing point after software adjusting focal length, control at present the program of camera lens or device
What multipotency was accomplished is the several ad hoc focus for fixed scene, once scene change, needs to reset although eliminating more
Change the cost of camera lens, but still suffer from a large amount of prover times, inefficiency.
Utility model content
For this reason, technical problem to be solved in the utility model is: the net that can automatically focus on after providing a kind of control zoom
Network video camera, in order to use in various monitors environments, simple to operate, real-time is high.
Then, the web camera that this utility model can focus on after providing a kind of control zoom automatically, including video camera
Module main control module and the motor-driven lenses by this master control module controls, and one be used for the control that controls motor-driven lenses automatically to focus on
Module, this module is placed between described main control module and motor-driven lenses, and electrically connects, and described motor-driven lenses are by for driving camera lens
The zoom motor of focus adjustment gear movement and for driving the zoom motor of camera lens focal adjustments gear movement jointly to drive.
Wherein, described control module includes:
Preset unit, for preset different focal length zoom aircraft pursuit course；
Recording unit, for according to the current zoom motor position sent of described main control module receiving and zoom motor position
Put, record the multiple of current lens focal length zoom and the multiple of pre- zoom；
Calculate select unit, after calculating for the data according to preset unit and recording unit, select current coupling
Focal length zoom aircraft pursuit course；
Driver element, for the focal length zoom aircraft pursuit course Real Time Drive zoom motor according to described coupling and zoom electricity
Machine makes it be adjusted to corresponding focal position.
The web camera that can automatically focus on after control zoom described in the utility model, by set up one be used for controlling electronic
The control module that camera lens focuses on automatically, makes this module be placed between described main control module and motor-driven lenses, and will be described electronic
The mode that camera lens is driven jointly by zoom motor and zoom motor is it is achieved that web camera focuses on automatically, simple to operate, in real time
Property high.
Brief description
Fig. 1 is for controlling the structural representation of the web camera that can automatically focus on after zoom described in this utility model embodiment
Figure；
Fig. 2 is web camera workflow schematic diagram shown in Fig. 1；
Fig. 3 is zoom process schematic shown in Fig. 2；
Fig. 4 is motor-driven lenses auto-focusing algorithm flow chart.
Specific embodiment
Below, in conjunction with accompanying drawing, this utility model is described in detail.
As shown in figure 1, the web camera that can automatically focus on after present embodiments providing a kind of control zoom, comprising: take the photograph
Camera module main control module 1, the motor-driven lenses 2 and being controlled by this main control module 1 are used for controlling motor-driven lenses 2 automatically to gather
Burnt control module 3.
Control module 3, is placed between described main control module 1 and motor-driven lenses 2, and electrically connects, described motor-driven lenses 2 by with
Adjust the zoom motor (in figure does not identify) of gear movement in driving lens focus and be used for driving camera lens focal adjustments gear to transport
Dynamic zoom motor (in figure does not identify) is common to be driven.
Control module 3, comprising:
Preset unit 31, for preset different focal length zoom aircraft pursuit course；
Recording unit 32, for according to the current zoom motor position sent of described main control module receiving and zoom motor
Position, the record multiple of current lens focal length zoom and the multiple of pre- zoom；
Calculate select unit 33, select after calculating for the data according to preset unit and recording unit and currently mate most
Focal length zoom aircraft pursuit course；
Driver element 34, for the focal length zoom aircraft pursuit course Real Time Drive zoom motor according to described coupling and zoom
Motor makes it be adjusted to corresponding focal position.
As shown in Fig. 2 needing to do following operating process during control module 3 control motor-driven lenses 2:
Step 1, zoom；Here, described zoom refers to that user selects zoom to increase by software control interface or reduces.
Control zooming in or out of camera lens multiple, zoom increases, camera lens multiple increases, picture furthers；Zoom reduces, and camera lens multiple subtracts
Little, picture pushes away far.
Step 2, records the position of current zoom motor and the position of zoom motor, records current zoom multiple and pre- zoom
Multiple；
Step 3, according to record, after calculating, selects the focal length zoom aircraft pursuit course of coupling, and such as focal length zoom is followed the tracks of bent
Line a, b, c；
Step 4, zoom starts, and obtains zoom motor position in real time, according to focal length zoom aircraft pursuit course Real Time Drive zoom
Motor is so as to move to corresponding zoom position.
Fig. 3 explanation is whole video camera power up initialization process, as shown in figure 3, zoom process includes:
Step 1, electric on the web camera that can automatically focus on after zoom to controlling described in the present embodiment；Main control module is automatic
Inquiry the initialized position of camera lens, and zero point it is simply that zoom value be zero, zoom level be zero point；
If it is non-zero points that main control module 1 inquires position, the zoom value of current location and zoom level be before power-off when
The zoom value of memory and zoom level.Breakpoint memory refers to, after the last time uses camera lens, the zoom value of memory and zoom before power-off
Value.
Step 2, the multiple that zoom to web camera is remembered, and execute autozoom；Wait zoom order afterwards, if receiving
To zoom order, then execution step 3；
Step 3, motor-driven lenses zoom is to corresponding multiple, and executes automatic focusing.
In the present embodiment, zoom motor and zoom motor are the structure compositions on electronic motor-driven lenses, and motor rotates and can join
Pinion rotation on index glass head, such that it is able to rotate focal length and the focal adjustments circle of camera lens, for replacing adjusting manually, zoom electricity
Machine is the focus adjustment gear that can drive camera lens, and zoom motor is the regulation gear that can drive camera lens focus.When using,
User clicks the button of zoom on web camera remote operator interface, sends the instruction of zoom, and zoom motor then starts
According to instruction execution, zoom is that the mobile step number of follower's zoom motor calculates zoom motor step number, first has electric motor
Mobile, just link zoom motor.
As shown in figure 4, motor-driven lenses auto-focusing algorithm flow process is:
Step 1, zoom Motor drive camera lens to corresponding zoom position, zoom motor follows curve drive according to focusing on zoom
Index glass head is to corresponding position；
Step 2, main control module 1 takes current f value, and f value is definition values；
Step 3, driving zoom motor is turned left away after several steps, takes current f1 value, afterwards, drives zoom motor to turn right away more several
Step, takes current f2 value.This step takes the more figure of merit for multidirectional contrast.The position that f value is located is initial point, and turn left the f1 and f2 that turns right
Value need to contrast with f value, the same with f value toward distance from left to right, after movement step number, need to return to initial point, calculate,
Carry out step 4 afterwards；
Step 4, motor-driven lenses, according to the value of f, f1, f2, select zoom motor moving direction, are to the left or to move right
Dynamic, if improved to the mobile definition in f1 direction, zoom motor drives lens left to move, otherwise on the contrary；
Step 5, main control module 1 selectes moving direction, and drives zoom motor to move to preferential direction, moves to fixing step
Long position；
Step 6, takes current f value；
Step 7, according to the f value got in front and back, calculated curve slope；If getting the slope of decline, execution step 8；
Step 8, in current point, drives different step-lengths to from left to right, repeatedly for three times, gets final articulation point；So far,
Focus successfully.
The web camera that can automatically focus on after controlling zoom described in the present embodiment, has electronic zoom and automatically focuses on mould
Group, that is, above-mentioned control module 3 and motor-driven lenses 2, integrate motor-driven lenses and web camera module, have excellent as follows
Point:
When the 1st, dispatching from the factory, web camera focus is clear, and picture understands, the step saving user's lens assembling, eliminates tune mirror
The trouble of head, can directly add the assembling fittings finished products such as shell.
2nd, by software-driven camera lens adjusting focal length and auto-focusing point can be realized, adapt to multiple monitors environments and scope,
Initialization is easy to adjust, and simple to operate, real-time is high.
3rd, web camera can day and night switch, and picture does not run Jiao, can keep clearly picture.
4th, a motor-driven lenses module can meet various monitors environments and use, and can save the trouble changing camera lens, and
There are multiple focal length sections, meet conventional monitoring, save cost.
In sum, the web camera that can automatically focus on after controlling zoom described in the present embodiment, is used for by setting up one
The control module controlling motor-driven lenses automatically to focus on, makes this module be placed between described main control module and motor-driven lenses, and will
Described motor-driven lenses are by zoom motor and the common mode driving of zoom motor it is achieved that the change of web camera gathers automatically
Jiao, simple to operate, real-time is high.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this utility model
Protection domain within.
Claims (2)
1. the web camera that can automatically focus on after a kind of control zoom, including video camera module main control module with by this master control mould
The motor-driven lenses that block controls are it is characterised in that also include one for the control module controlling motor-driven lenses automatically to focus on, this module
It is placed between described main control module and motor-driven lenses, and electrically connects, described motor-driven lenses are by for driving lens focus to adjust tooth
Take turns the zoom motor of motion and for driving the zoom motor of camera lens focal adjustments gear movement jointly to drive.
2. web camera according to claim 1 is it is characterised in that described control module includes:
Preset unit, for preset different focal length zoom aircraft pursuit course；
Recording unit, for according to the current zoom motor position sent of described main control module receiving and zoom motor position,
The record multiple of current lens focal length zoom and the multiple of pre- zoom；
Calculate select unit, after calculating for the data according to preset unit and recording unit, select the focal length of current coupling
Zoom aircraft pursuit course；
Driver element, makes for the focal length zoom aircraft pursuit course Real Time Drive zoom motor according to described coupling and zoom motor
It is adjusted to corresponding focal position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620853479.8U CN205901896U (en) | 2016-08-08 | 2016-08-08 | But automatic focusing's internet protocol camera after control becomes doubly |
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| CN201620853479.8U CN205901896U (en) | 2016-08-08 | 2016-08-08 | But automatic focusing's internet protocol camera after control becomes doubly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791431A (en) * | 2017-01-17 | 2017-05-31 | 深圳市巨龙创视科技有限公司 | The method for controlling electronic zoom camera lens to focus on automatically |
| CN108200319A (en) * | 2018-01-09 | 2018-06-22 | 佛山华国光学器材有限公司 | A kind of big zoom integrated camera and its autocontrol method |
| CN110225235A (en) * | 2018-03-01 | 2019-09-10 | 浙江宇视科技有限公司 | Zoom follower method and motor-driven lens |
-
2016
- 2016-08-08 CN CN201620853479.8U patent/CN205901896U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791431A (en) * | 2017-01-17 | 2017-05-31 | 深圳市巨龙创视科技有限公司 | The method for controlling electronic zoom camera lens to focus on automatically |
| CN106791431B (en) * | 2017-01-17 | 2019-10-11 | 深圳市巨龙创视科技有限公司 | Control the method that electronic zoom camera lens focuses automatically |
| CN108200319A (en) * | 2018-01-09 | 2018-06-22 | 佛山华国光学器材有限公司 | A kind of big zoom integrated camera and its autocontrol method |
| CN108200319B (en) * | 2018-01-09 | 2020-09-18 | 佛山华国光学器材有限公司 | Large zoom integrated camera and automatic control method thereof |
| CN110225235A (en) * | 2018-03-01 | 2019-09-10 | 浙江宇视科技有限公司 | Zoom follower method and motor-driven lens |
| CN110225235B (en) * | 2018-03-01 | 2021-03-09 | 浙江宇视科技有限公司 | Zoom following method and electric lens |
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