CN103561241A - Power adjustment method of laser night-vision device - Google Patents
Power adjustment method of laser night-vision device Download PDFInfo
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- CN103561241A CN103561241A CN201310555429.2A CN201310555429A CN103561241A CN 103561241 A CN103561241 A CN 103561241A CN 201310555429 A CN201310555429 A CN 201310555429A CN 103561241 A CN103561241 A CN 103561241A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a power adjustment method of a laser night-vision device. The power adjustment method comprises the following steps that 1) video signals are collected; 2) brightness information of the video signals collected in the step 1) is extracted; 3) a deviation between the brightness information and preset standard brightness is calculated so as to obtain a deviation signal; 4) if the deviation signal is greater than a set threshold value, a regulation signal is output according to the adjustment amount corresponding to the deviation signal; 5) power adjustment is conducted according to the regulating signal. The power adjustment method achieves power adjustment of the laser night-vision device with low cost.
Description
Technical field
The present invention relates to a kind of laser night-vision device power regulating method.
Background technology
Along with society is more and more abundant to the understanding of energy-saving and emission-reduction, increasing product has also been taked some measures economizing on resources, reduce aspect power consumption.At laser night vision product scope, how can guarantee to monitor night under the prerequisite of effect, reduce as much as possible machine power consumption and also become the problem that pay attention to.
The use state of current laser night-vision device on the market is conventionally only divided into out laser and is closed laser two states.When laser is opened, luminaire is operated in maximum power, and when monitoring distance becomes near, or when night, light was partially bright, lower power can reach good night vision effect.Obviously when laser illuminator is operated in maximum power always, will produce many unnecessary losses, thereby cause the wasting of resources, when monitoring distance simultaneously becomes near, laser power is bigger than normal, can cause monitoring objective partially bright, and visual field internal object is crossed bright meeting contrast is declined, and affects night vision effect.
Inventor thinks, if laser night-vision device has power, can according to field conditions, adjust the size of laser power by automatic regulation function, reduces dead wight loss, reaches the object economizing on resources.
Current this area is to this shorter mention, and the laser illuminator of laser night-vision device on the market only works in two kinds of basic status.
Chinese patent literature CN202583666U discloses a kind of night-vision illumination system, proposition adds distance measuring sensor in existing night-vision illumination system, by this distance measuring sensor, can detect people on illumination path or object apart from the distance of lighting apparatus, what then by main control unit, automatically regulate laser illuminator goes out luminous power or light radiation angle.This power is adjusted mode and is adjusted based on projection distance, obviously the environment irradiation intensity that should consider do not considered, and same projection distance, low-light has very big-difference with the illuminating effect without light state.There is certain relation in projection distance and power adjustment, but does not have good matching.
Summary of the invention
For this reason, the object of the invention is to seek a kind of new technology path, with lower cost, solve preferably the problem that laser night-vision device power is adjusted, propose whereby a kind of method of adjustment.
The present invention is by the following technical solutions:
A power regulating method, it comprises the following steps:
1) gather vision signal;
2) extraction step 1) monochrome information of the vision signal that gathers;
3) calculate the deviation of described monochrome information and default normal brightness, obtain deviation signal;
4), if deviation signal is greater than the threshold value of setting, according to adjustment amount corresponding to described deviation signal, signal is adjusted in output;
5) according to described adjustment signal, carry out power adjustment.
According to the present invention, adopt software mode to carry out power adjustment, by means of monochrome information, do not increase extra hardware expenditure, not only cost is low, and because monochrome information more can reflect visual field situation exactly, can obtain the video quality than higher contrast.
Above-mentioned laser night-vision device power regulating method, power adjustment adopts voltage control, thus adjusting signal is the analog voltage signal that deviation signal obtains after D/A conversion.
Above-mentioned laser night-vision device power regulating method, also sets a time threshold, and the time that is greater than setting threshold in deviation signal, while being less than the time threshold of setting, not carrying out power adjustment, otherwise carries out power adjustment.
Accompanying drawing explanation
Fig. 1 is the theory diagram of laser night-vision device power adjustment apparatus.
Embodiment
With reference to Figure of description 1, it has expressed the general structure of laser night-vision device, main by the video camera of integrated camera or other types, the laser illuminator of synchronizeing with video camera, the video capture circuit that is disposed at video camera, connection with the signal processing circuit of video capture circuit rear class, the control circuit of laser illuminator and signal processing circuit are exported the image displaying part being connected grades and form.
By means of above structure, video capture circuit gathers as the monochrome information of the video image of integrated camera output, compare with default normal brightness information, the deviation signal of gained is through signal processing circuit, carry out the processing of digital signal, the conversion of digital signal and analog signal, the analog passband signal of formation is crossed laser illuminator control circuit, controls the power output of laser illuminator.
About deviation, due to brightness value be can be quantitative a value, optimum efficiency also can be described by corresponding brightness, brightness that can optimum state is as normal brightness information, so brightness change the deviation of light of producing just can directly use numerical value to calculate.
Because the power output of laser illuminator also exists definite incidence relation with brightness under identical environment, easily correspondence goes out the relation of brightness and deviation so accordingly, and those skilled in the art is easily understanding accordingly.
As integrated camera is realized the video acquisition to testee, outputting video signal, is placed in the type of vision signal, does not affect follow-up processing, does not repeat them here.
Video capture circuit gathers the monochrome information of integrated camera outputting video signal, input signal processing circuit.Before this, can extract vision signal one two field picture, carry out gray processing processing, to reduce follow-up amount of calculation.
Meanwhile, about processing choosing of image, can be real-time choose, but chooses in the given time period.Environment irradiation changes not quite at short notice after all.
The monochrome information that signal processing circuit obtains video capture circuit and default normal brightness information compare, and the deviation signal of gained is processed, and through D/A conversion, final output can be controlled the analog voltage signal of laser illuminator electric current.
Voltage signal is easier processed and transmission than current signal, and is not easy disturbed.
Laser illuminator control circuit receives the analog voltage from signal processing circuit, controls the size of laser illuminator electric current, realizes the control to laser illuminator power.
Be observed object, integrated camera, video capture circuit, signal processing circuit, laser control circuit and laser illuminator and form closed-loop system, video demonstration is used for showing in real time the vision signal that integrated camera is exported.
Note, closed loop may not be in real time, can be also can not, in content before this, to address to some extent.
When being observed object brightness when higher, monochrome information is through video capture circuit collection, after signal processing circuit is processed, the analog control voltage of output reduces, and through laser control circuit, controls laser illuminator electric current and reduces, laser illuminator power reduces, and reduces the brightness that is observed object.Realize the function of automatic regulating optical power.
In addition, due to the impact of enchancement factor, the larger situation of brightness that may the section of the existence time, as the car lighting of passing by, may be in a flash, and obviously adjustment in real time has better effect relatively, but also can increase the consumption of resource.And in the time of more, as the too illumination of short time of time, the reaction of adjusting equipment may not be credible; Also may adjust after device responds, environmental aspect has returned to normal state.
For this reason, in some occasions, can select to set a time threshold, the time that is greater than setting threshold in deviation signal, while being less than the time threshold of setting, not carrying out power adjustment, otherwise carries out power adjustment.
The present invention can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (3)
1. a laser night-vision device power regulating method, is characterized in that, it comprises the following steps:
1) gather vision signal;
2) extraction step 1) monochrome information of the vision signal that gathers;
3) calculate the deviation of described monochrome information and default normal brightness, obtain deviation signal;
4), if deviation signal is greater than the threshold value of setting, according to adjustment amount corresponding to described deviation signal, signal is adjusted in output;
5) according to described adjustment signal, carry out power adjustment.
2. laser night-vision device power regulating method according to claim 1, is characterized in that, power adjustment adopts voltage control, thereby adjusting signal is the analog voltage signal that deviation signal obtains after D/A conversion.
3. laser night-vision device power regulating method according to claim 1 and 2, is characterized in that, also sets a time threshold, and the time that is greater than setting threshold in deviation signal, while being less than the time threshold of setting, not carrying out power adjustment, otherwise carries out power adjustment.
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| CN201310555429.2A CN103561241A (en) | 2013-11-11 | 2013-11-11 | Power adjustment method of laser night-vision device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997825A (en) * | 2014-04-28 | 2014-08-20 | 东南大学 | Intelligent indoor light intensity control system and working method thereof |
| CN105534470A (en) * | 2015-12-22 | 2016-05-04 | 精微视达医疗科技（武汉）有限公司 | Confocal microendoscopy system and adjusting method thereof |
| CN105635536A (en) * | 2016-01-04 | 2016-06-01 | 浪潮集团有限公司 | Laser power linear adjustment method for laser night vision device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120798A (en) * | 1994-10-11 | 1996-04-17 | 三星电子株式会社 | Automatic illumination intensity control apparatus for a discharge lamp |
| CN101193488A (en) * | 2006-11-20 | 2008-06-04 | 启萌科技有限公司 | Brightness adjusting method and device |
| CN101227778A (en) * | 2008-02-19 | 2008-07-23 | 东南大学 | Self-excited oscillation type high power LED constant-current driving circuit |
| CN101917794A (en) * | 2010-06-28 | 2010-12-15 | 浙江大华技术股份有限公司 | Circuit and method for performing adaptive quantization adjustment on power of infrared lamps of infrared camera |
| CN102111558A (en) * | 2011-02-15 | 2011-06-29 | 杭州海康威视数字技术股份有限公司 | Method and device for automatically switching over optical filter of video camera |
| WO2012073338A1 (en) * | 2010-11-30 | 2012-06-07 | Ｎｅｃディスプレイソリューションズ株式会社 | Display device and color-correction method for display device |
-
2013
- 2013-11-11 CN CN201310555429.2A patent/CN103561241A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120798A (en) * | 1994-10-11 | 1996-04-17 | 三星电子株式会社 | Automatic illumination intensity control apparatus for a discharge lamp |
| CN101193488A (en) * | 2006-11-20 | 2008-06-04 | 启萌科技有限公司 | Brightness adjusting method and device |
| CN101227778A (en) * | 2008-02-19 | 2008-07-23 | 东南大学 | Self-excited oscillation type high power LED constant-current driving circuit |
| CN101917794A (en) * | 2010-06-28 | 2010-12-15 | 浙江大华技术股份有限公司 | Circuit and method for performing adaptive quantization adjustment on power of infrared lamps of infrared camera |
| WO2012073338A1 (en) * | 2010-11-30 | 2012-06-07 | Ｎｅｃディスプレイソリューションズ株式会社 | Display device and color-correction method for display device |
| CN102111558A (en) * | 2011-02-15 | 2011-06-29 | 杭州海康威视数字技术股份有限公司 | Method and device for automatically switching over optical filter of video camera |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997825A (en) * | 2014-04-28 | 2014-08-20 | 东南大学 | Intelligent indoor light intensity control system and working method thereof |
| CN105534470A (en) * | 2015-12-22 | 2016-05-04 | 精微视达医疗科技（武汉）有限公司 | Confocal microendoscopy system and adjusting method thereof |
| CN105635536A (en) * | 2016-01-04 | 2016-06-01 | 浪潮集团有限公司 | Laser power linear adjustment method for laser night vision device |
| CN105635536B (en) * | 2016-01-04 | 2018-07-24 | 浪潮集团有限公司 | Laser power linear adjustment method for laser night vision device |
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Application publication date: 20140205 |