CN104539914A - Multi-band monitor with automatic synchronization and working method of multi-band monitor - Google Patents
Multi-band monitor with automatic synchronization and working method of multi-band monitor Download PDFInfo
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- CN104539914A CN104539914A CN201510034544.4A CN201510034544A CN104539914A CN 104539914 A CN104539914 A CN 104539914A CN 201510034544 A CN201510034544 A CN 201510034544A CN 104539914 A CN104539914 A CN 104539914A
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Abstract
The invention discloses a multi-band monitor with automatic synchronization. The multi-band monitor comprises a visible-light lens, an infrared lens and an MCU (Micro Controller Unit) controller, wherein a direct-current motor and a precision potentiometer are fixed on the visible-light lens and the infrared lens; the MCU controller controls the rotation of the visible-light lens and the infrared lens by the direct-current motor and the precision potentiometer in sequence. The multi-band monitor also comprises an infrared detector and a visible-light camera, wherein the visible-light camera is fixed at the rear end of the visible-light camera; the infrared detector is fixed at the rear end of the infrared lens; the MCU controller is respectively connected with the infrared detector and the visible-light camera and configures working parameters of the infrared detector and the visible-light camera. The invention also discloses a working method of the multi-band monitor with automatic synchronization. The multi-band monitor and the working method have the advantages that when the focus length of one lens is adjusted, automatic following of the other lens can be achieved, so that the problem that each waveband is independently adjusted after a monitored target is discovered to cause target losing and the problems of vision-field mismatching, convenience and reliability and the like are effectively solved.
Description
Technical field
The present invention relates to field of video monitoring, particularly relate to the autosynchronous multiband watch-dog of a kind of band and method of work thereof.
Background technology
Along with the development of security protection industry, video monitoring equipment has been made remote and two waveband even three wave bands by increasing producer, is applied to the monitoring of highway, oil field, forest, safe city etc.But whole two waveband watch-dogs in the market, it is the focal length regulating separately two camera lenses, both are made to reach the substantially identical angle of visual field by the observation of human eye, visible ray adopts zoom lens or all-in-one, thermal imagery directly adopts tight shot, the angle of visual field is neither mated, and thermal imagery also cannot accurate localizing objects, and What is more directly selects the tight shot of two angles of visual field couplings.Such design for user use very inconvenient, such as monitor an automobile of running at high speed, no matter be first regulate visible light lens focal length to regulate thermal imager lens focus again, or first regulate thermal imager lens focus to regulate visible light lens focal length again, if be both adjusted to the substantially identical angle of visual field, likely automobile has travelled out the visible range of some wave bands, will lose and the tracking of target or needs are readjusted, likely lose the tracking to target under serious conditions, for monitoring field, this is definitely unallowed.Therefore, for multiband watch-dog, for two waveband, lose in monitor procedure to prevent target, meet adjustment lens focus another one camera lens and can reach object, the convenience of equipment use and the reliability of monitoring of automatically following, be necessary that design is a and can realize autosynchronous multiband watch-dog.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the autosynchronous multiband watch-dog of a kind of band and method of work thereof, regulate a lens focus another one camera lens to reach automatically to follow, each wave band is regulated separately to cause track rejection problem after effective solution finds monitoring objective, and the problem such as visual field is not mated, convenience and reliability.
For achieving the above object, the present invention takes following technical scheme:
The autosynchronous multiband watch-dog of a kind of band, comprises multiple optical lens and MCU controller, each optical lens is all fixed with direct current machine and precision potentiometer; Described MCU controller and control desk carry out communication, control visible light lens and infrared lens rotation successively by direct current machine, precision potentiometer.
Preferably, multiple optical lens comprises visible light lens, infrared lens or laser lens, and each optical lens may correspond in a wave band.The spectral region of visible ray is 380-780nm; Laser belongs to near-infrared, and spectral region is 780-1000nm; Infrared i.e. thermal imaging, infrared in belonging to, spectral region is 7.5-14um(7500-14000nm), the multiwave meaning of the present invention divides according to spectral region, to be applied to different environments for use.
Further, native system also comprises Infrared Detectors and visible light camera, described visible light camera is fixed on the rear end of visible light lens, Infrared Detectors is fixed on the rear end of infrared lens, described MCU controller is connected with Infrared Detectors and visible light camera respectively, configuration Infrared Detectors and visible light camera running parameter.
Further, native system also comprises guard shield and duckbilled, described visible light lens, infrared lens, visible light camera, Infrared Detectors and MCU controller are all positioned at guard shield, and described guard shield is fixed on duckbilled, and duckbilled is screwed on monitor stand.
Further, MCU controller is communicated with visible light camera by RS232 interface, and MCU controller is communicated with control desk by RS485 interface.
Further, MCU controller carries out communication by wired or wireless mode and control desk.
Further, the video information of visible light camera and Infrared Detectors collection is delivered to its exterior and has in the monitor of dual input function.
Further, direct current machine and precision potentiometer are replaced by stepping motor, and described MCU controller is rotated by step motor control visible light lens and infrared lens.
The autosynchronous multiband watch-dog method of work of a kind of band, comprises the steps:
(1) system power-on reset and initialization;
(2) visible light lens, infrared lens, Infrared Detectors and visible light camera self-inspection;
(3) wait-receiving mode carrys out control console data; If the data of receiving, enter interrupt service routine and the data received are read from data buffer zone, jump into step (4);
(4) correctness receiving data is judged; If receive correct data, judgement is change camera parameters order or lens control order, if what receive is the order of change camera parameters, jumps into step (5), if what receive is lens control order, jumps into step (6); Otherwise return step (3);
(5) order controlling camera parameters change is sent by RS232 interface;
(6) what judge that lens control order controls is can by light microscopic head or infrared lens, if infrared lens, so visible light lens is servo-actuated, otherwise infrared lens is servo-actuated; And in the process of light microscopic head and infrared lens action, judge whether that both reach the identical angle of visual field, if it is return step (3), otherwise, whether reach the identical angle of visual field both continuing to detect.
Further, the focal length data that step (6) stores according to MCU controller pre-acquired step judges whether light microscopic head and infrared lens action reach the identical angle of visual field, and described MCU controller pre-acquired step comprises:
MCU controller gathers visible light lens potentiometer and infrared lens potentiometer focal length data respectively by program, the selection of described focal length data will be uniformly distributed in camera lens focal length in the whole focal length section of short Jiao, and visible light lens potentiometer focal length data and infrared lens potentiometer focal length data one_to_one corresponding, make both angles of visual field identical.
Beneficial effect: the present invention loses in monitor procedure to prevent target, adjustment lens focus is realized by MCU controller, another one camera lens can reach follows automatically, each wave band is regulated separately to cause track rejection problem after effective solution finds monitoring objective, and the problem such as visual field is not mated, convenience and reliability.
Accompanying drawing explanation
Fig. 1 is multiband watch-dog principle assumption diagram provided by the invention.
Fig. 2 is multiband watch-dog front view provided by the invention.
Fig. 3 is multiband watch-dog left view provided by the invention.
Fig. 4 is multiband watch-dog internal view provided by the invention.
Fig. 5 is multiband watch-dog workflow diagram provided by the invention.
Fig. 6 is that multiband watch-dog provided by the invention interrupts flow chart.
Wherein, 1, visible light lens, 2, visible light camera, 3, precision potentiometer, 4, direct current machine, 5, infrared lens, 6, Infrared Detectors, 7, MCU controller, 8, guard shield, 9, duckbilled.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
The invention provides the autosynchronous multiband watch-dog of a kind of band, comprise multiple optical lens and MCU controller, each optical lens is all fixed with direct current machine and precision potentiometer; Described MCU controller and control desk carry out communication, control visible light lens and infrared lens rotation successively by direct current machine, precision potentiometer.Multiple optical lens comprises visible light lens, infrared lens or laser lens, and each optical lens may correspond in a wave band.
For two waveband watch-dog, the present invention is described in detail below, as shown in Figure 1, two waveband watch-dog comprises following components: visible light camera 2, visible light lens 1, Infrared Detectors 6, infrared lens 5, circuit control module, direct current machine 4, precision potentiometer 3, MCU controller 7, guard shield 8 and duckbilled 9.External control devices is not as the part of native system, and can be that upper computer software turns RS485 control by USB, can be also monitoring supervisory keyboard, and just illustrate as a communication interface is convenient in figure, external display device is monitor.
As Fig. 2, 3, shown in 4, visible light camera 2 is fixed on the rear end of visible light lens 1, visible light lens 1 is fixed with direct current machine 4 and precision potentiometer 3, Infrared Detectors 6 is fixed on the rear end of infrared lens 5, infrared lens 5 is fixed with direct current machine 4 and precision potentiometer 3, both be fixed in guard shield 8, there is one piece of circuit board guard shield 8 inside, the interface of circuit board and camera control is RS232 interface, MCU controller 7 is arranged by program control camera parameters and controls direct current machine 4 and drives camera lens to rotate and correspondence with foreign country, external communication interface is RS485, join USB by the USB interface of monitoring keyboard or computer and turn RS485 module controls, guard shield 8 is fixed on duckbilled 9, and duckbilled 9 is screwed on support.The video that visible light camera 2 and Infrared Detectors 6 export receive there is dual input function monitor on.
MCU controller 7: the core of whole system, arranges the parameter of video camera and thermal imaging for sending or receive control command and reads the functions such as lens location feedback.
Visible light camera 2: SD or high-definition camera;
Infrared Detectors 6: adopt the 5th generation hyperfine miniaturized Detection Techniques;
Visible light lens 1: the zoom function realizing visible light lens 1;
Infrared lens 5: realize the zoom of infrared lens 5, focusing function;
Direct current machine 4: controlling can by the movement of light microscopic sheet and infrared eyeglass;
Precision potentiometer 3: the high accuracy potentiometer selecting ± 1% precision, is separately fixed on infrared lens 5 and visible light lens 1, by the motor gear transmission on camera lens.
Implement to describe: each 20 data first being gathered visible light lens 1 potentiometer and infrared lens 5 potentiometer by program respectively, convert 20 data to digital quantity by MCU controller 7 by analog-digital conversion; The selection of 20 data will be uniformly distributed in camera lens focal length in the whole focal length section of short Jiao, and these 20 data of two groups want one_to_one corresponding, corresponding method is the angle of visual field size based on camera lens, the angle of visual field of visual two kinds of camera lenses is substantially substantially identical, all such as the 2nd data often organized, so the angle of visual field of the camera lens of their correspondences should be about the same, these 2 groups of data deposited in MCU controller 7.In the process of image data, in order to ensure the accuracy of data, the data should adopted gathering are screened, as in order to can image data accurately, should carry out digital filtering to the data gathered, then such as middle position value filtering, Glitch Filter, multi collect are averaged or are made the mode of arithmetic mean filtering realize.If the position needing camera lens to feed back is more accurate, 16 the even high-resolution specialized simulation-digital translation chip of 24 can be adopted to coordinate special hardware filtering circuit to realize.
The order controlling infrared lens 5 is received for MCU controller 7, after receiving the order controlling infrared lens 5, MCU controller 7 controls infrared lens 5 direct current machine 4 and rotates, MCU controller 7 drives visible light lens 1 direct current machine 4 to rotate simultaneously, the position data reading visible ray camera switching potentiometer feedback adopted by MCU controller 7 simultaneously, the numerical value that the potentiometer collected feeds back by MCU controller 7 is compared with 20 numerical value of the infrared lens 5 of storage, if the numerical value of infrared lens 5 is identical with the some numerical value of visible light lens 1 or substantially identical, (analog-to-digital is because of conversion accuracy, the reasons such as resolution have little error), then think that visible light lens 1 has the identical angle of visual field with infrared lens 5, MCU controller 7 controls light microscopic head direct current machine 4 to be stopped operating.Same MCU controller 7 controls visible light lens 1, and infrared lens 5 realizes being synchronously same principle, no longer repeat specification.
This watch-dog specific works process comprises the steps:
(1) system power-on reset and initialization;
(2) visible light lens 1, infrared lens 5, Infrared Detectors 6 and visible light camera 2 self-inspection;
(3) wait-receiving mode carrys out control console data; If the data of receiving, enter interrupt service routine and the data received are read from data buffer zone, jump into step (4);
(4) correctness receiving data is judged; If receive correct data, judgement is change camera parameters order or lens control order, if what receive is the order of change camera parameters, jumps into step (5), if what receive is lens control order, jumps into step (6); Otherwise return step (3);
(5) order controlling camera parameters change is sent by RS232 interface;
(6) what judge that lens control order controls is can by light microscopic head or infrared lens 5, if infrared lens 5, so visible light lens 1 is servo-actuated, otherwise infrared lens 5 is servo-actuated; And in the process of light microscopic head and infrared lens 5 action, judge whether that both reach the identical angle of visual field, if it is return step (3), otherwise, whether reach the identical angle of visual field both continuing to detect.
The present invention can pass through without the technical characteristic described or adopt existing techniques in realizing; such as high accuracy potentiometer and direct current machine 4 are merged into one; use that stepping motor can realize the same function instead, two waveband can make three or more wave bands etc. into; do not repeat them here; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change 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 (10)
1. be with an autosynchronous multiband watch-dog, it is characterized in that: comprise multiple optical lens and MCU controller, each optical lens is all fixed with direct current machine and precision potentiometer; Described MCU controller and control desk carry out communication, control visible light lens and infrared lens rotation successively by direct current machine, precision potentiometer.
2. the autosynchronous multiband watch-dog of one band according to claim 1, is characterized in that: described multiple optical lens comprises visible light lens, infrared lens or laser lens.
3. the autosynchronous multiband watch-dog of one band according to claim 1 and 2, it is characterized in that: also comprise Infrared Detectors and visible light camera, described visible light camera is fixed on the rear end of visible light lens, Infrared Detectors is fixed on the rear end of infrared lens, described MCU controller is connected with Infrared Detectors and visible light camera respectively, configuration Infrared Detectors and visible light camera running parameter.
4. the one according to claim 1,2 or 3 is with autosynchronous multiband watch-dog, it is characterized in that: also comprise guard shield and duckbilled, described visible light lens, infrared lens, visible light camera, Infrared Detectors and MCU controller are all positioned at guard shield, described guard shield is fixed on duckbilled, and duckbilled is screwed on monitor stand.
5. the one according to claim 1,2 or 3 is with autosynchronous multiband watch-dog, it is characterized in that: described MCU controller is communicated with visible light camera by RS232 interface, and MCU controller is communicated with control desk by RS485 interface.
6. the autosynchronous multiband watch-dog of one band according to claim 5, is characterized in that: described MCU controller carries out communication by wired or wireless mode and control desk.
7. the one according to Claims 2 or 3 is with autosynchronous multiband watch-dog, it is characterized in that: the video information of described visible light camera and Infrared Detectors collection is delivered to its exterior to be had in the monitor of dual input function.
8. the autosynchronous multiband watch-dog of one band according to claim 1, is characterized in that: described direct current machine and precision potentiometer are replaced by stepping motor, and described MCU controller is rotated by step motor control visible light lens and infrared lens.
9. be with an autosynchronous multiband watch-dog method of work described in claim 1, it is characterized in that comprising the steps:
(1) system power-on reset and initialization;
(2) visible light lens, infrared lens, Infrared Detectors and visible light camera self-inspection;
(3) wait-receiving mode carrys out control console data; If the data of receiving, enter interrupt service routine and the data received are read from data buffer zone, jump into step (4);
(4) correctness receiving data is judged; If receive correct data, judgement is change camera parameters order or lens control order, if what receive is the order of change camera parameters, jumps into step (5), if what receive is lens control order, jumps into step (6); Otherwise return step (3);
(5) order controlling camera parameters change is sent by RS232 interface;
(6) what judge that lens control order controls is can by light microscopic head or infrared lens, if infrared lens, so visible light lens is servo-actuated, otherwise infrared lens is servo-actuated; And in the process of light microscopic head and infrared lens action, judge whether that both reach the identical angle of visual field, if it is return step (3), otherwise, whether reach the identical angle of visual field both continuing to detect.
10. the autosynchronous multiband watch-dog of one band according to claim 9, it is characterized in that: the focal length data that described step (6) stores according to MCU controller pre-acquired step judges whether light microscopic head and infrared lens action reach the identical angle of visual field, described MCU controller pre-acquired step comprises:
MCU controller gathers visible light lens potentiometer and infrared lens potentiometer focal length data respectively by program, the selection of described focal length data will be uniformly distributed in camera lens focal length in the whole focal length section of short Jiao, and visible light lens potentiometer focal length data and infrared lens potentiometer focal length data one_to_one corresponding, make both angles of visual field identical.
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