CN102170565A - Method for realizing VAAL of infrared product - Google Patents
Method for realizing VAAL of infrared product Download PDFInfo
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- CN102170565A CN102170565A CN2011100897687A CN201110089768A CN102170565A CN 102170565 A CN102170565 A CN 102170565A CN 2011100897687 A CN2011100897687 A CN 2011100897687A CN 201110089768 A CN201110089768 A CN 201110089768A CN 102170565 A CN102170565 A CN 102170565A
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Abstract
The invention relates to a method for realizing VAAL of an infrared product. The method adopts a circuit comprising a microprocessor, with the microprocessor connected with a camera via an in-chip video A/D circuit interface, connected with an infrared lamp circuit via in-chip PWM and connected to a photosensitive sensor. The method of the invention comprises the steps of carrying out an intelligent analysis of collected video images via a DSP and controlling the output power and turn-on mode of the infrared lamp, thus to realize the objective of enhancing video effect and saving energy. The VAAL of the infrared product of the invention can reduce infrared power when there is no mobile object and raise the infrared power when a mobile object appears. In this way, power consumption of the whole device can be reduced, the service lifetime of infrared products can be effectively prolonged, and great night vision effect can be achieved when a mobile object appears.
Description
Technical field
The present invention relates to the front end acquisition technology of video monitoring system, the implementation method of particularly a kind of infrared product video analysis light modulation VAAL.
Background technology
Along with science and technology development and people improving constantly to the video monitoring effect requirements at night of video monitoring system, the front end image capturing system of common thermal camera and infrared intelligent clipping the ball video camera more and more is used, and its occupation rate of market also improves constantly.But traditional infrared product light source adopts infrared lamp to adopt the constant power output mode usually.Traditional infrared product light source adopts infrared lamp constant power output mode.There are following two defectives in this output mode: one, in quite a few application scenario, such as residential quarter, hospital, school etc., the most of the time does not have moving target to occur in the monitored picture when night, if infrared light supply is opened with high power mode in this case always, both caused the waste of electric power, disagree with the socioeconomic theory of structure low-carbon (LC), influenced the useful life of infrared lamp again.Two, common infrared ball is in order to realize night vision effect preferably, often get the infrared lamp power ascension higher, for some video camera under the object observing situation nearer apart from the ball machine, because target itself is to the hyperreflexia of infrared light, it is over-exposed that the video pictures central area is produced, be that the video pictures central whole is turned white, do not see the object observing details.
So, how in consume electric power not with do not influenced under the prerequisite in useful life of infrared lamp and realize clipping the ball video camera infrared video monitoring function, be the research topic of this technical field.
Summary of the invention
Purpose of the present invention is exactly for overcoming the deficiencies in the prior art, cross hang-up at traditional infrared product light source consume electric power, the technical scheme of a kind of thermal camera video analysis light modulation (VAAL) circuit is provided, makes the power output of infrared light supply realize dynamically control; Both do not had moving target to occur in monitored picture, then the maintenance low-power of infrared light supply is opened, and has moving target to occur in monitored picture, and the unlatching power that then promotes infrared light supply automatically increases; Thereby realize to reduce Overall Power Consumption, the energy-conservation and purpose that prolongs the useful life of infrared lamp.
The present invention realizes by such technical scheme: the implementation method of infrared product video analysis light modulation VAAL, the circuit that described method adopts comprises microprocessor, microprocessor connects video camera by video a/d circuit interface in the sheet, and microprocessor connects the infrared lamp circuit by PWM in the sheet; Microprocessor connects light sensor; It is characterized in that, comprise the steps:
A, microprocessor change by light sensor perception ambient light illumination, and when ambient light illumination was lower than setting threshold, infrared lamp was opened automatically;
B, microprocessor internal video a/d circuit are converted into digital signal to analog video signal and store in the ram in slice;
C, microprocessor are checked the sequence of video images that stores in the ram in slice and are differed from the analysis of frame method, if there is not moving target to occur, infrared lamp is exported with low-power mode; If find moving target, then promote infrared lamp power automatically;
D, microprocessor are analyzed the video pictures signal detail that collects, if the video pictures central whole is turned white, microprocessor is then judged: the target range camera lens is nearer, causes picture over-exposed, and microprocessor control marble forming machine reduces infrared power automatically; Otherwise picture is whole dark partially, and microprocessor is then judged: the infrared power deficiency, and microprocessor control marble forming machine promotes infrared power automatically, makes camera views keep best effects;
E, microprocessor pass through the control of the duty cycle parameters realization of PWM module in the control strip to the infrared lamp power output.
The invention has the beneficial effects as follows: in the natural resources anxiety, environment goes from bad to worse, and advocating low-carbon economy is thematic today of social development, and the control electronic product power consumption should run through product design all the time.With the infrared power of other infrared products of producer fixedly output mode compare, thermal camera video analysis light modulation (VAAL) can reduce infrared power when not having moving target, when moving target occurs, improve infrared power.So both can reduce Overall Power Consumption, effectively prolong the infrared useful life of Denging, can when moving target occurring, reach good night vision effect again.
Description of drawings
Fig. 1, infrared product video analysis light modulation VAAL circuit structure diagram;
Fig. 2, software flow pattern.
Embodiment
For a more clear understanding of the present invention, describe the present invention in conjunction with the accompanying drawings and embodiments in detail:
As shown in Figure 1, described circuit comprises microprocessor, and microprocessor connects video camera by video a/d circuit interface in the sheet, and microprocessor connects the infrared lamp circuit by PWM in the sheet; Microprocessor connects light sensor;
Be illustrated in figure 1 as described infrared microprocessor software flow process, software flow is as follows:
Ambient light illumination detects; Microprocessor changes by light sensor perception ambient light illumination, and when ambient light illumination was lower than setting threshold, infrared lamp was opened automatically;
Microprocessor internal video a/d circuit is converted into digital signal to analog video signal and stores in the ram in slice;
Microprocessor is checked the sequence of video images that stores in the ram in slice and is differed from the analysis of frame method, if there is not moving target to occur, infrared lamp is exported with low-power mode; If find moving target, then promote infrared lamp power automatically;
Microprocessor is analyzed the video pictures details, if the video pictures central whole is turned white, illustrates that object observing is nearer apart from video camera, causes picture over-exposed, and the ball machine then reduces infrared power automatically; Otherwise picture is whole dark partially, and the infrared power deficiency is described, the ball machine then can promote infrared power automatically, makes camera views keep best effects;
Microprocessor passes through the control of the duty cycle parameters realization of PWM module in the control strip to the infrared lamp power output.
By DSP the video image that collects is carried out intellectual analysis, the power output and the open mode of infrared lamp are controlled, thereby realize promoting video effect and purpose of energy saving.
The client can be provided with the moving target surveyed area on video pictures, infrared lamp is not opened with low power mode when having moving target in the surveyed area in the monitored picture; When moving target occurring in the surveyed area, the ball machine promotes infrared power automatically.So both can reduce Overall Power Consumption, prolong infrared lamp useful life, can when moving target occurs, obtain good video image effect again.
When the video image center overexposure occurs or under-exposure causes image blurring or image detail when losing, the ball chance suitably reduces or improves the power output of infrared lamp automatically, so that camera video picture exposure appropriateness, thereby obtain best video image effect.
When the video camera visual angle was big, infrared lamp group dipped beam was opened, when the video camera visual angle hour, infrared lamp group distance light is opened.The ball machine has the dipped beam compensation model in addition, and promptly opening section power distance light when video camera is in great visual angle so not only can strengthen the dipped beam effect but also tangible flashlight effect can not occur.
According to the above description, can realize the solution of the present invention in conjunction with art technology.
Claims (1)
1. the implementation method of infrared product video analysis light modulation VAAL, the circuit that described method adopts comprises microprocessor, and microprocessor connects video camera by video a/d circuit interface in the sheet, and microprocessor connects the infrared lamp circuit by PWM in the sheet; Microprocessor connects light sensor; It is characterized in that, comprise the steps:
A, microprocessor change by light sensor perception ambient light illumination, and when ambient light illumination was lower than setting threshold, infrared lamp was opened automatically;
B, microprocessor internal video a/d circuit are converted into digital signal to analog video signal and store in the ram in slice;
C, microprocessor are checked the sequence of video images that stores in the ram in slice and are differed from the analysis of frame method, if there is not moving target to occur, infrared lamp is exported with low-power mode; If find moving target, then promote infrared lamp power automatically;
D, microprocessor are analyzed the video pictures signal detail that collects, if the video pictures central whole is turned white, microprocessor is then judged: the target range camera lens is nearer, causes picture over-exposed, and microprocessor control marble forming machine reduces infrared power automatically; Otherwise picture is whole dark partially, and microprocessor is then judged: the infrared power deficiency, and microprocessor control marble forming machine promotes infrared power automatically, makes camera views keep best effects;
E, microprocessor pass through the control of the duty cycle parameters realization of PWM module in the control strip to the infrared lamp power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100897687A CN102170565A (en) | 2011-04-11 | 2011-04-11 | Method for realizing VAAL of infrared product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100897687A CN102170565A (en) | 2011-04-11 | 2011-04-11 | Method for realizing VAAL of infrared product |
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| CN102170565A true CN102170565A (en) | 2011-08-31 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821250A (en) * | 2012-08-23 | 2012-12-12 | 青岛海信网络科技股份有限公司 | Automatic dimming method and device of infrared camera |
| CN103049975A (en) * | 2011-10-17 | 2013-04-17 | 天津市亚安科技股份有限公司 | Energy-saving method for infrared monitoring equipment |
| CN103065410A (en) * | 2012-12-21 | 2013-04-24 | 深圳和而泰智能控制股份有限公司 | Method and device of intrusion detection and alarm |
| CN103379268A (en) * | 2012-04-25 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Power-saving monitoring system and method |
| CN103491313A (en) * | 2013-10-09 | 2014-01-01 | 安徽三联交通应用技术股份有限公司 | Fill light lamp automatic control method based on video analysis |
| CN106296716A (en) * | 2016-08-24 | 2017-01-04 | 深圳奥比中光科技有限公司 | The power regulating method of light source, depth measurement method and device |
| CN107205104A (en) * | 2017-04-24 | 2017-09-26 | 奇鋐科技股份有限公司 | Human face recognition module |
| CN107370966A (en) * | 2017-08-24 | 2017-11-21 | 珠海安联锐视科技股份有限公司 | A kind of intelligent infrared control circuit and its control method |
| CN107645652A (en) * | 2017-10-27 | 2018-01-30 | 深圳极视角科技有限公司 | A kind of illegal geofence system based on video monitoring |
| WO2018205235A1 (en) * | 2017-05-12 | 2018-11-15 | 天彩电子（深圳）有限公司 | Method for improving night vision distance and reducing power consumption, apparatus and system |
| CN109076145A (en) * | 2015-12-21 | 2018-12-21 | 英特尔公司 | Automatic range for active illumination depth camera controls |
| CN112462621A (en) * | 2020-11-30 | 2021-03-09 | 严彩芬 | Intelligent household light compensation method and system based on monitoring equipment |
| CN113453408A (en) * | 2020-03-26 | 2021-09-28 | 浙江宇视科技有限公司 | Light supplement drive control circuit and method and network camera |
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| WO2003088672A1 (en) * | 2002-04-17 | 2003-10-23 | Fujitsu Limited | Monitor system |
| CN101299807A (en) * | 2007-04-30 | 2008-11-05 | 深圳Tcl新技术有限公司 | Display device capable of automatically regulating display parameter as well as implementation method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103049975A (en) * | 2011-10-17 | 2013-04-17 | 天津市亚安科技股份有限公司 | Energy-saving method for infrared monitoring equipment |
| CN103379268A (en) * | 2012-04-25 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Power-saving monitoring system and method |
| CN102821250A (en) * | 2012-08-23 | 2012-12-12 | 青岛海信网络科技股份有限公司 | Automatic dimming method and device of infrared camera |
| CN102821250B (en) * | 2012-08-23 | 2016-02-24 | 青岛海信网络科技股份有限公司 | The automatic light modulating method of thermal camera and device |
| CN103065410A (en) * | 2012-12-21 | 2013-04-24 | 深圳和而泰智能控制股份有限公司 | Method and device of intrusion detection and alarm |
| CN103491313A (en) * | 2013-10-09 | 2014-01-01 | 安徽三联交通应用技术股份有限公司 | Fill light lamp automatic control method based on video analysis |
| US10927969B2 (en) | 2015-12-21 | 2021-02-23 | Intel Corporation | Auto range control for active illumination depth camera |
| CN109076145A (en) * | 2015-12-21 | 2018-12-21 | 英特尔公司 | Automatic range for active illumination depth camera controls |
| CN109076145B (en) * | 2015-12-21 | 2021-05-18 | 英特尔公司 | Automatic range control for active illumination depth camera |
| CN106296716A (en) * | 2016-08-24 | 2017-01-04 | 深圳奥比中光科技有限公司 | The power regulating method of light source, depth measurement method and device |
| CN107205104A (en) * | 2017-04-24 | 2017-09-26 | 奇鋐科技股份有限公司 | Human face recognition module |
| WO2018205235A1 (en) * | 2017-05-12 | 2018-11-15 | 天彩电子（深圳）有限公司 | Method for improving night vision distance and reducing power consumption, apparatus and system |
| CN107370966A (en) * | 2017-08-24 | 2017-11-21 | 珠海安联锐视科技股份有限公司 | A kind of intelligent infrared control circuit and its control method |
| CN107645652A (en) * | 2017-10-27 | 2018-01-30 | 深圳极视角科技有限公司 | A kind of illegal geofence system based on video monitoring |
| CN113453408A (en) * | 2020-03-26 | 2021-09-28 | 浙江宇视科技有限公司 | Light supplement drive control circuit and method and network camera |
| CN113453408B (en) * | 2020-03-26 | 2022-11-04 | 浙江宇视科技有限公司 | Light supplement drive control circuit and method and network camera |
| CN112462621A (en) * | 2020-11-30 | 2021-03-09 | 严彩芬 | Intelligent household light compensation method and system based on monitoring equipment |
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Application publication date: 20110831 |