CN101963739B - Method for automatically switching filter - Google Patents
Method for automatically switching filter Download PDFInfo
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- CN101963739B CN101963739B CN2010102603359A CN201010260335A CN101963739B CN 101963739 B CN101963739 B CN 101963739B CN 2010102603359 A CN2010102603359 A CN 2010102603359A CN 201010260335 A CN201010260335 A CN 201010260335A CN 101963739 B CN101963739 B CN 101963739B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims description 94
- 230000003287 optical effect Effects 0.000 claims description 94
- 238000007689 inspection Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000005923 long-lasting effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000001815 facial effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
The invention provides a method for automatically switching a filter. In the method of the invention, photography equipment, a driving circuit, a stepping motor, an installation support, a swinging arm, a swinging arm shaft and a filter are used. The method comprises the following steps: state 1: laying down the automatic-switching filter to cover a lens; and state 2: lifting the filter to move off the filter for blocking the lens; and automatically sending a command to switch the filter by a host computer. Accordingly, the method of the invention can solve the long-lasting problem that the unattended photography equipment is incapable of automatically switching and controlling the filter and ensure that the photography equipment can capture high-definition images under the all-weather light conditions.
Description
Affiliated technical field:
The inventive method relates to photography, shooting field, improve to take a picture or the environmental suitability of video camera under round-the-clock various light condition, captures better picture effect, is specifically related to be used for realize by the machine camera optical filtering technology that automaticallyes switch.
Technical background
At present, in photograph, shooting field, in order to obtain desirable shooting effect, various optical filterings have been produced, for example polariscope, gray scale mirror, color filter, UV mirror or the like.The mounting means of optical filtering has permanent type to install and two kinds of detachable installations.For the permanent type mounting means, equipment is used under the particular environment, and ambient light changes very little, need not switch optical filtering generally speaking; For the application of detachable mounting means, modal is the equipment that is used to carry, and when needing, the shooting effect that suitable optical filtering obtains wanting is installed.But for some special-purpose photographic/camera equipment, for example the traffic road junction is specifically designed to the equipment of the vehicle image of shooting clear, because environment more complicated of living in; Ambient light can produce very big variation along with the time, and equipment is in the unmanned state in most cases, wants to utilize certain optical filtering; But can only under certain particular environment condition, just can reach ideal effect; After ambient light changes, for example day and night change, Changes in weather, light angle changes; Optical filtering not only can not improve shooting quality, can have a negative impact to shooting quality on the contrary.Therefore press for a kind of method of convenient switching optical filtering, can be in needs, change according to ambient light by people's remote control or by opertaing device and to send instruction by the machine optical filtering that automaticallyes switch.
Summary of the invention
In order to solve the problem that optical filtering automaticallyes switch and controls, under round-the-clock light condition, all can capture HD image to guarantee photography or picture pick-up device, invented the method that optical filtering automaticallyes switch.By comprising that photography or picture pick-up device, driving circuit, stepper motor, mounting bracket, swing arm, arm shaft, optical filtering etc. partly constitute.The concrete steps of the method that optical filtering automaticallyes switch are following:
State one: the automatic switchover optical filtering puts down, and blocks the camera lens step, corresponding Figure of description 3
1. control device energized;
2. driving circuit is checked the control line level state;
3. check the control line level state when driving circuit and do not change, then return step 2;
4. when the change of driving circuit inspection control line level state;
5. the control line level state is a low level;
6. stepper motor is just forwarding set angle to;
7. the optical filtering in the swing arm puts down, and blocks camera lens;
11 preserve current state, return step 2.
State two: the automatic switchover optical filtering rises, and the optical filtering that blocks camera lens is removed step, corresponding Figure of description 3
1 control device energized;
2 driving circuits inspection control line level state;
3 check the control line level state when driving circuit does not change, and then returns step 2;
4 driving circuits inspection control line level state changes;
8. the control line level state is a high level;
9. stepper motor is inverted to set angle;
10. the optical filtering in the swing arm rises, and the optical filtering that blocks camera lens is removed
11. the preservation current state is returned step 2.
Control device promptly designs a swing arm, and swing arm can rotate around the axis; The one of which end is installed optical filtering, and the other end is a tooth bar, the gearing mesh on tooth bar and the stepper motor rotation axis; Stepper motor is by driving circuit drives, and driving circuit has two kinds of inputs: level input or serial communication port input; Change the control line level state: high level or low level; Or pass through serial ports and give driving circuit to the driving circuit transmitting control commands; Promptly send motor drive signal after driving circuit is resolved and give stepper motor, drive stepping motor turns to set angle, drives swing arm and rotates; Optical filtering in the swing arm changes the position immediately, realizes the purpose of machine automatic switchover camera optical filtering.
Control device constitutes: control device partly is made up of driving circuit, stepper motor, mounting bracket, swing arm, arm shaft etc.
Control principle: the high level of control line and the respectively corresponding two kinds of different optical filtering states of low level, the state of driving circuit detection at any time control line is when the control line level changes; Driving circuit sends main story or inversion driving signal according to previous status to stepper motor, and motor rotates; Gear driven swing arm tooth bar, swing arm is rotated, and the optical filtering state in the swing arm changes thereupon; When the motor rotational angle reached the angle of setting, driving circuit stopped to send the motor turn signal, the motor stall; Swing arm is parked in certain location, and driving circuit is remembered new control line state.Specific descriptions are: state one: motor just changes, and drives swing arm and rotates, and optical filtering is fallen, and blocks before camera lens.State two: the motor counter-rotating, drive swing arm and rotate, optical filtering is risen, optical filtering is removed before camera lens.
Driving circuit receives the control command of upper control machine, converts control command to motor drive signal, accomplishes the control to the swing arm state, and optical filtering is installed in the swing arm, also just realizes the optical filtering control of position.
The receivable control command of driving circuit is a multichannel---be corresponding multiple optical filtering state, every many one tunnel control signals, corresponding optical filtering status number is taken advantage of in 2; The control of serial port command byte, maximum can allow 256 kinds of optical filtering states.
Described optical filtering is a kind of in polariscope, UV mirror, gray scale mirror, day light microscopic, infrared mirror, the color filter mirror.
Described host computer is meant photography or picture pick-up device, promptly transmits control signal or the opertaing device of control command, and control command is sent in the equipment or the manual operation that just are used for the optical filtering switching control.Generally be to take a picture or video camera itself or by the special-purpose driving circuit of its driving; Its effect is according to the realtime graphic of taking a picture or video camera provides; Judge on-the-spot light condition ambient conditions; Whether need switch optical filtering with decision, when needs switched optical filtering, photography or picture pick-up device sent steering order: change the control line level state or from the serial communication port transmitting control commands.
The marked improvement of optical filtering switching control of the present invention is can in needs, send instruction automatically by host computer to carry out the optical filtering switching; The photography that exists for a long time or picture pick-up device have been solved at the unmanned state; The problem that optical filtering automaticallyes switch and controls can not be realized, under round-the-clock light condition, all HD image can be captured to guarantee photography or picture pick-up device.
Description of drawings
Fig. 1. the optical filtering switching device shifter constitutes synoptic diagram.
Among the figure: optical filtering I, swing arm II, arm shaft III, motor gib screw IV, support V, stepper motor VI, power lead VII, driving circuit VIII, motor-driven cable I V, control line X, photography or picture pick-up device XI.
Fig. 2. two kinds of switching states of optical filtering.
Among the figure: explain that two kinds of switching states of optical filtering: state one: motor just changes when adopting 1 road control line, drive swing arm and rotate, optical filtering is fallen, block before camera lens.State two: the motor counter-rotating, drive swing arm and rotate, optical filtering is risen, optical filtering is removed before camera lens.
Fig. 3. the drive circuit works schematic flow sheet.
Embodiment
Embodiment one
In the present embodiment, will specify in intelligent transportation is captured, realize the application example of the on-line automatic switching of polariscope I.Capture in the application at highway public security bayonet socket; In order to see driver and crew's facial characteristics of automobile front-row clearly; Need before camera lens, install polariscope I additional, not know phenomenon to reduce the reflective driver and crew's facial characteristics that causes of windshield, but improve the discrimination of the high-definition image of taking.But after having installed polariscope I additional; Because polariscope I itself has certain reflection and absorption to light; Can cause under the darker situation of ambient light (like night), the picture overall exposing is not enough, has a strong impact on picture quality; So when ambient light is darker, need in time polariscope I to be removed before camera lens.
The method that adopts optical filtering of the present invention to automatically switch comprises that polariscope I, swing arm II, arm shaft III, motor gib screw IV, support V, stepper motor VI, power lead VII, driving circuit VIII, motor-driven cable I V, control line X, photography or picture pick-up device XI etc. partly constitute.The concrete steps of the method that optical filtering automaticallyes switch are following:
Automatic switchover polariscope I puts down, and blocks the camera lens step
A) control device energized;
B) driving circuit VIII inspection control line level state;
C) do not change when driving circuit VIII checks the control line level state, then return step 2;
D) when the change of driving circuit VIII inspection control line level state;
E) the control line level state is a low level;
F) stepper motor VI is just forwarding set angle to;
G) the polariscope I on the swing arm II puts down, and blocks camera lens;
H) preserve current state, return step 2.
Automatic switchover optical filtering I rises, and the polariscope I that blocks camera lens is removed step
1) control device energized;
2) driving circuit VIII inspection control line level state;
3) do not change when driving circuit VIII checks the control line level state, then return step 2;
4) driving circuit VIII inspection control line level state changes;
5) the control line level state is a high level;
6) stepper motor VI is inverted to set angle;
7) the polariscope I on the swing arm II rises, and the polariscope I that blocks camera lens is removed
8) preserve current state, return step 2.
In present embodiment one; Photography or picture pick-up device XI are that the alert high definition of AG-200ICAD net is captured all-in-one (Yunnan Jinlong Weiye Electronics Co., Ltd. manufactures and designs), and it has four road IO delivery outlets, wherein one the tunnel is used to the output environment light state; When ambient light is lower than certain value (G1); G1 represents the ambient light value, the setting that this value is switched optical filtering according to concrete ambient light, and its output level is high; Otherwise when ambient light was higher than certain value (G2), its output level was low.The control line of optical filtering switching device shifter promptly is connected to this delivery outlet; This device is installed in the alert high definition of AG-200ICAD net and captures all-in-one on one side; Before optical filtering I just is positioned at camera lens, thereby form the capturing system that a cover can change automatic switchover polariscope I according to surround lighting.When environment is brighter, the camera output low level, polariscope I falls, and blocks before camera lens, effectively removes the reflective of vehicle windscreen; When ambient light is dark, camera output high level, polariscope I rises, and before camera lens, removes, and increases exposure, thereby has taken into account the picture quality under the various ambient light illuminations.
Embodiment two
In present embodiment two, the method that adopts optical filtering of the present invention to automatically switch with specifying under the situation of using 2 control lines, realizes the application example of 3 on-line automatic switchings of optical filtering.Under the situation of 2 control lines, the state of control line has four kinds: state 1 (11)---line 1 high level, line 2 high level; State 2 (10)---line 1 high level, line 2 low levels; State 3 (01)---line 1 low level, line 2 high level; State 4 (00)---line 1 low level, line 2 low levels; No. 1, state 1 corresponding optical filtering, No. 2, state 2 corresponding optical filterings, No. 3, state 3 corresponding optical filterings, state 4 corresponding no optical filterings.When motor-drive circuit VIII detects the control line state and changes, send motor drive signal, drive stepping motor VI turns to the angle of setting, before driving swing arm II the optical filtering I of correspondence being turned to camera lens, can reach the purpose of switching optical filtering I.State 1 to 4 corresponding concrete optical filtering kind can be selected according to actual needs.Other content repeats no more with embodiment one.
Embodiment three
In present embodiment three, the method that adopts optical filtering of the present invention to automatically switch with specifying under the situation of using serial communication port to control, realizes the application example of the on-line automatic switching of multi-disc optical filtering.Under the situation of using serial communication port to control; Photography or picture pick-up device XI send to the command frame of driving circuit and are made up of a plurality of byte datas; One of them byte is as command byte, and the state of expression optical filtering: state 1---order is 01, corresponding No. 1 optical filtering; State 2---command byte is 02, corresponding No. 2 optical filtering; State 256---command byte is 256, corresponding No. 256 optical filtering.Before the order that motor-drive circuit VIII receives representes that promptly the optical filtering I with correspondence turns to camera lens; When a current subcommand was identical with the current order that receives, expression maintained the original state constant, when motor-drive circuit VIII receives order with last order of receiving when different; Send motor drive signal; Drive stepping motor VI turns to the angle of setting, before driving swing arm II the optical filtering I of correspondence being turned to camera lens, can reach the purpose of switching optical filtering I.Order 1 to 256 corresponding concrete optical filtering kind can be selected according to actual needs.Other content repeats no more with embodiment one.
Claims (2)
1. the method that automaticallyes switch of optical filtering is made up of photography or picture pick-up device, driving circuit, stepper motor, mounting bracket, swing arm, arm shaft, optical filtering, and the concrete steps of the method that optical filtering automaticallyes switch are following:
State one: the automatic switchover optical filtering puts down, and blocks the camera lens step,
(1) control device energized;
(2) driving circuit inspection control line level state;
(3) check the control line level state when driving circuit and do not change, then return step (2);
(4) when the change of driving circuit inspection control line level state;
(5) the control line level state is a low level;
(6) stepper motor is just forwarding set angle to;
(7) optical filtering in the swing arm puts down, and blocks camera lens;
(8) preserve current state, return step (2);
State two: the automatic switchover optical filtering rises, and the optical filtering that blocks camera lens is removed step,
(1) control device energized;
(2) driving circuit inspection control line level state;
(3) check the control line level state when driving circuit and do not change, then return step (2);
(4) driving circuit inspection control line level state changes;
(5) the control line level state is a high level;
(6) stepper motor is inverted to set angle;
(7) optical filtering in the swing arm rises, and the optical filtering that blocks camera lens is removed
(8) preserve current state, return step (2);
Described driving circuit input is: the level input; Change the control line level state: high level or low level; Promptly send motor drive signal after driving circuit is resolved and give stepper motor, drive stepping motor turns to set angle, drives swing arm and rotates; Optical filtering in the swing arm changes the position immediately, realizes machine automatic switchover optical filtering; Or: described driving circuit input is: give driving circuit through serial ports to the driving circuit transmitting control commands; Promptly send motor drive signal after driving circuit is resolved and give stepper motor; Drive stepping motor turns to set angle; The drive swing arm is rotated, and the optical filtering in the swing arm changes the position immediately, realizes machine automatic switchover optical filtering;
It is characterized in that the receivable control command of described driving circuit is: level signal, minimum employing 1 tunnel--promptly corresponding two kinds of optical filtering states, state one: the automatic switchover optical filtering puts down, and blocks camera lens; State two: the automatic switchover optical filtering rises, and the optical filtering that blocks camera lens is removed; Or: the receivable control command of described driving circuit is a multichannel---be corresponding multiple optical filtering state, every many one tunnel control signals, corresponding optical filtering status number is taken advantage of in 2; The control of serial port command byte, maximum can allow 256 kinds of optical filtering states.
2. the method that optical filtering as claimed in claim 1 automaticallyes switch is characterized in that, described optical filtering is a kind of in polariscope, UV mirror, gray scale mirror, day light microscopic, the color filter mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102603359A CN101963739B (en) | 2010-08-24 | 2010-08-24 | Method for automatically switching filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102603359A CN101963739B (en) | 2010-08-24 | 2010-08-24 | Method for automatically switching filter |
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| Publication Number | Publication Date |
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| CN101963739A CN101963739A (en) | 2011-02-02 |
| CN101963739B true CN101963739B (en) | 2012-01-04 |
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| CN2010102603359A Active CN101963739B (en) | 2010-08-24 | 2010-08-24 | Method for automatically switching filter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101963740A (en) * | 2010-08-24 | 2011-02-02 | 云南金隆伟业电子有限公司 | Ray filter switching control device |
| KR101992306B1 (en) * | 2013-01-03 | 2019-06-24 | 삼성전자주식회사 | Method for operating for camera an electronic device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206379A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN101246297A (en) * | 2008-01-28 | 2008-08-20 | 刘崇儒 | Optical filter switching method of infrared camera and corresponding switching device |
| CN101256337A (en) * | 2008-01-22 | 2008-09-03 | 深圳市同洲电子股份有限公司 | Control method and system for mobile spectral filter |
| CN201392444Y (en) * | 2009-04-28 | 2010-01-27 | 长春市佶达智能工程有限公司 | Automatic switch optical filter device for surveillance camera |
| CN101750696A (en) * | 2008-12-03 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
-
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- 2010-08-24 CN CN2010102603359A patent/CN101963739B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206379A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN101256337A (en) * | 2008-01-22 | 2008-09-03 | 深圳市同洲电子股份有限公司 | Control method and system for mobile spectral filter |
| CN101246297A (en) * | 2008-01-28 | 2008-08-20 | 刘崇儒 | Optical filter switching method of infrared camera and corresponding switching device |
| CN101750696A (en) * | 2008-12-03 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN201392444Y (en) * | 2009-04-28 | 2010-01-27 | 长春市佶达智能工程有限公司 | Automatic switch optical filter device for surveillance camera |
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Effective date of registration: 20201224 Address after: Pengnan Industrial Park, Heze County, Shandong Province Patentee after: Shandong Xuyuan ecological agriculture and animal husbandry Co.,Ltd. Address before: 650106 5th floor, block B, Sipu science and technology building, 625 2nd Ring West Road, Kunming City, Yunnan Province Patentee before: YUNNAN KINGLON ELECTRONIC Co.,Ltd. |