CN101064778A - Photograph mode control method for monitor camera - Google Patents
Photograph mode control method for monitor camera Download PDFInfo
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- CN101064778A CN101064778A CN 200610026240 CN200610026240A CN101064778A CN 101064778 A CN101064778 A CN 101064778A CN 200610026240 CN200610026240 CN 200610026240 CN 200610026240 A CN200610026240 A CN 200610026240A CN 101064778 A CN101064778 A CN 101064778A
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Abstract
The invention relates to a control method for photography mode of monitoring camera, which belongs to the field of monitoring camera, especially relates to control method for photography mode of monitoring camera which can change the day mode and night mode automatically by inserting or exerting the infrared block filter lens between the aperture and the charge-coupled device. When setting the daytime mode on the monitoring camera, the infrared block filter lens is inserted between the aperture and the charge-coupled device; when setting the nighttime mode on the monitoring camera, the infrared block filter lens is exerted, and then inserts the transparent suppositional glass. When said aperture is open completely, the nighttime mode can just be controlled automatically when the automatic gain control value is the preset target value, so, even if the auto control nighttime mode in sundown, it can detect the automatic gain control value and the open state of aperture, and it can defend the oscillation phenomenon caused by inserting and exerting the infrared block filter lens time and again.
Description
Technical field
The present invention relates to a kind of photograph mode control method of rig camera, relate in particular to a kind of by between aperture (IRIS) and charge-coupled device (CCD), inserting or extracting IR-cut filter (IR Cut Filter) out, come automated variable between controll day (Day) pattern and night (Night) pattern the photograph mode control method of rig camera.
Background technology
Fig. 1 is the view that the photograph mode of common rig camera is configured to a day inter mode (Day Mode).Above-mentioned rig camera comprises: camera lens 10, aperture (IRIS) 11, charge-coupled device (CCD) 12, automatic gain control part (AGC) 13, Digital Signal Processing portion (DSP) 14, aperture drive division 15, controller 16, IR-cut filter (IR Cut Filter) 17 and virtual glass (Dummy Grass) 18 etc.
Simultaneously, above-mentioned controller 16 is being worth according to the automatic gain control (AGC) from above-mentioned automatic gain control part 13 variable adjustment, when setting the photograph mode of rig camera for Night (Night Mode), as shown in Figure 2, rotation motor (Motor) 19, above-mentioned IR-cut filter 17 from extracting out between said aperture 11 and the charge coupled device 12, is replaced and inserts transparent virtual glass 18.
Above-mentioned controller 16 when the photograph mode of rig camera being set for Night (Night Mode), situation as shown in Figure 3.If this moment, a day inter mode (Day Mode) set the photograph mode of rig camera for by above-mentioned controller 16, by rotation motor (Motor) 19 with the virtual glass among above-mentioned Fig. 3 18 from extracting out between said aperture 11 and the charge coupled device 12, replace and insert IR-cut filter 17.
Therefore, the many day inter modes of light quantity that incide on the rig camera are to insert above-mentioned IR-cut filter; On the contrary, the Night that incident light quantity is few is to extract above-mentioned IR-cut filter out, makes the light quantity incident stably of prescribed limit with this.
But, common rig camera since according to above-mentioned automatic gain control value with variable Night or day inter mode of being controlled to of photograph mode, so, if under the state that incident light quantities such as sunset slowly change, set Night, can be because extract above-mentioned IR-cut filter out, and incident light quantity is sharply increased for the moment, thereby automatic gain control (AGC) value is reduced suddenly, cause setting once more a day inter mode, and then can produce above-mentioned IR-cut filter and between said aperture and charge coupled device, extract and insert the oscillatory occurences of being brought out.
Summary of the invention
The present invention proposes for addressing the above problem just, its purpose is to provide the photograph mode control method of rig camera, promptly refer to: opened fully under the state of (Max Open) at the aperture (IRIS) of rig camera, when only limiting to automatic gain control (AGC) value for the prior setting of having set, just carry out the automatic control of Night, thereby can advance preventing IR-cut filter produce the photograph mode control method of a kind of rig camera of oscillatory occurences.
To achieve these goals, the photograph mode control method of rig camera of the present invention is characterised in that: it comprises following two steps: the 1st step, and aperture (IRIS) open mode and the automatic gain control (AGC) that detect rig camera are worth; The 2nd step is opened under the maximum state in said aperture, when above-mentioned automatic gain control (AGC) value is the preset standard value, is controlled to (Night) photograph mode at night automatically.
In addition, the photograph mode control method of rig camera of the present invention is characterised in that: it also comprises when being controlled to above-mentioned Night automatically, the IR-cut filter that is inserted on the light path is extracted out from above-mentioned light path, detected the step of above-mentioned automatic gain control (AGC) value and aperture open mode simultaneously.Above-mentioned IR-cut filter controls (AGC) value according to the above-mentioned automatic gain of correspondence and the aperture open mode is implemented automatic day inter mode and the Night of controlling, and inserts on above-mentioned light path or extracts out.
Effect of the present invention:
In sum, photograph mode control method with the rig camera of the present invention that as above constitutes is a very valuable invention, its effect is: when setting in the daytime (Day) pattern on rig camera, (IR Cut Filter) is inserted between aperture (IRIS) and the charge-coupled device (CCD) with the IR-cut filter; And when setting (Night) pattern at night, extract above-mentioned IR-cut filter out, replace and insert transparent virtual glass (Dummy Grass).Opened fully under the state of (Max Open) in said aperture, when only limiting to automatic gain control (AGC) value for the prior setting of having set, just control automatically by above-mentioned Night, thereby under situations such as sunset, even be controlled to Night automatically, also detect automatic gain control value and aperture open mode, thereby can effectively prevent above-mentioned IR-cut filter to insert repeatedly and extract out and the oscillatory occurences that causes.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the view of mode initialization in the daytime of common rig camera;
Fig. 2 is the IR-cut filter that comprised in the common rig camera and virtual glass according to day inter mode and the embodiment schematic diagram that is used alternatingly of Night;
Fig. 3 is the Night set condition schematic diagram of common rig camera;
Fig. 4 is the rig camera Night set condition schematic diagram that is suitable for photograph mode control method of the present invention;
Fig. 5 is the operational flowchart of the photograph mode control method of rig camera of the present invention.
The symbol description of major part in the accompanying drawing:
10: camera lens 11: aperture
12: charge coupled device 13: the automatic gain control part
14: Digital Signal Processing portion 15: the aperture drive division
16: controller 17: the IR-cut filter
18: virtual glass
Embodiment
Embodiment to the photograph mode control method of rig camera of the present invention is elaborated with reference to the accompanying drawings.
At first, photograph mode control method of the present invention is applicable to the rig camera of Fig. 1 to structure shown in Figure 3.For example, Fig. 4 is the view that rig camera screening-mode of the present invention is configured to Night (Night Mode).
Above-mentioned rig camera comprises: camera lens 10, aperture (IRIS) 11, charge coupled device (CC D) 12, automatic gain control part 13, Digital Signal Processing portion 14, aperture drive division 15, controller 16, IR-cut filter (IR Cut Filter) 17 and virtual glass (Dummy Grass) 18 etc.Automatic gaining controling signal and aperture drive signal are input to respectively on the above-mentioned controller 16.
In addition, above-mentioned controller 16 is confirmed above-mentioned automatic gaining controling signal and aperture drive signal (IRIS_Drive), open fully under the state of (Max Open) in said aperture 11, when only limiting to automatic gain control value simultaneously, just with variable day inter mode or the Night set for of photograph mode for the required standard value set in advance.
And, as shown in Figure 4, when setting above-mentioned Night, extract above-mentioned IR-cut filter 17 out and replace and insert the sequence of operations of virtual glass 18; On the contrary, when setting day inter mode, extract above-mentioned virtual glass 18 out and replace and insert the sequence of operations of IR-cut filter 17.
Therefore, even control automatically by above-mentioned Night, also all consider automatic gain control value and aperture open mode, per diem inter mode is controlled automatically, so can prevent to extract and insert the oscillatory occurences that above-mentioned IR-cut filter is caused out, below this is elaborated because of the automatic gain control value minimizing of moment.
Fig. 5 is the operational flowchart of the photograph mode control method of rig camera of the present invention.
S10, as shown in the figure, above-mentioned controller 16 receives respectively from the aperture of said aperture drive division 15 outputs and drives (IRIS_Drive) signal and control (AGC_CTL) signal from the automatic gain of above-mentioned automatic gain control part 13 outputs.
And above-mentioned controller 16 is discerned the open mode of said aperture 11 according to the said aperture drive signal, and will compare with the required standard value of setting in advance according to the automatic gain control value of above-mentioned automatic gaining controling signal identification.
S11 judges whether said aperture 11 is opened fully.
S12 under the state that said aperture 11 is opened fully, judges whether automatic gain control value (AGC) is consistent with standard value again.
S13, for example, under the state that said aperture 11 is opened fully, when simultaneously above-mentioned automatic gain control value was consistent with standard value, above-mentioned controller 16 was controlled photograph mode is become Night (NightMode) from mode switch in the daytime.
S14, and, extract the IR-cut filter 17 that is inserted between said aperture 11 and the charge coupled device 12 out, replace and insert transparent virtual glass 18, carry out optical path compensation, increase incident light quantity simultaneously.At this moment, under the state that takes place slowly to change such as incident light quantities such as sunsets, set Night, extract the IR-cut filter out, even thereby incident light quantity sharply increases for the moment, also not only consider automatic gain control (AGC) value, and consider the aperture open mode, thereby can keep current Night.
S15, S16, simultaneously, if above-mentioned controller 16 is not owing to be in full open position in said aperture 11 among the above-mentioned S11, when automatic gain control value and standard value are inconsistent among the perhaps above-mentioned S12, with the photograph mode control transformation or be maintained in a day inter mode, so between said aperture 11 and charge coupled device 12, insert IR-cut filter 17.In S17, end during system closing, carry out aforesaid operations always repeatedly.
More than just for example understand desirable embodiment of the present invention, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (3)
1, a kind of photograph mode control method of rig camera is characterised in that to comprise following two steps:
The 1st step, the aperture open mode and the automatic gain control value of detection rig camera;
The 2nd step when above-mentioned automatic gain control value has the preset standard value when open maximum state in said aperture under, is controlled to the night photography pattern automatically.
2, the photograph mode control method of rig camera as claimed in claim 1 is characterized in that also comprising:
When being controlled to above-mentioned Night automatically, the IR-cut filter that is inserted on the light path is extracted out from above-mentioned light path, detect the step of above-mentioned automatic gain control value and aperture open mode simultaneously.
3, the photograph mode control method of rig camera as claimed in claim 2 is characterized in that:
Above-mentioned IR-cut filter is implemented the day inter mode and Night of control automatically according to the above-mentioned automatic gain control value of correspondence and aperture open mode, on above-mentioned light path or insert or extract out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026240 CN101064778A (en) | 2006-04-29 | 2006-04-29 | Photograph mode control method for monitor camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026240 CN101064778A (en) | 2006-04-29 | 2006-04-29 | Photograph mode control method for monitor camera |
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| CN101064778A true CN101064778A (en) | 2007-10-31 |
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| CN 200610026240 Pending CN101064778A (en) | 2006-04-29 | 2006-04-29 | Photograph mode control method for monitor camera |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610355B (en) * | 2009-05-05 | 2011-03-16 | 张日和 | Day and night camera |
| CN102148929A (en) * | 2010-02-10 | 2011-08-10 | 索尼公司 | Imaging device, imaging device control method and program |
| CN102253571A (en) * | 2011-01-17 | 2011-11-23 | 深圳市保千里电子有限公司 | Camera equipment and infrared optical filter switching device |
| CN102801906A (en) * | 2012-08-02 | 2012-11-28 | 东莞市南星电子有限公司 | Monitoring camera with day and night double apertures |
| US10146101B2 (en) | 2016-12-28 | 2018-12-04 | Axis Ab | Method for sequential control of IR-filter, and an assembly performing such method |
| US10386554B2 (en) | 2016-12-28 | 2019-08-20 | Axis Ab | IR-filter arrangement |
| US10567713B2 (en) | 2016-12-28 | 2020-02-18 | Axis Ab | Camera and method of producing color images |
-
2006
- 2006-04-29 CN CN 200610026240 patent/CN101064778A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610355B (en) * | 2009-05-05 | 2011-03-16 | 张日和 | Day and night camera |
| CN102148929A (en) * | 2010-02-10 | 2011-08-10 | 索尼公司 | Imaging device, imaging device control method and program |
| CN102253571A (en) * | 2011-01-17 | 2011-11-23 | 深圳市保千里电子有限公司 | Camera equipment and infrared optical filter switching device |
| CN102253571B (en) * | 2011-01-17 | 2014-07-16 | 深圳市保千里电子有限公司 | Camera equipment and infrared optical filter switching device |
| CN102801906A (en) * | 2012-08-02 | 2012-11-28 | 东莞市南星电子有限公司 | Monitoring camera with day and night double apertures |
| CN102801906B (en) * | 2012-08-02 | 2015-04-15 | 东莞市南星电子有限公司 | Monitoring camera with day and night double apertures |
| US10146101B2 (en) | 2016-12-28 | 2018-12-04 | Axis Ab | Method for sequential control of IR-filter, and an assembly performing such method |
| US10386554B2 (en) | 2016-12-28 | 2019-08-20 | Axis Ab | IR-filter arrangement |
| US10567713B2 (en) | 2016-12-28 | 2020-02-18 | Axis Ab | Camera and method of producing color images |
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Open date: 20071031 |