CN108055514A - Video security monitoring device and the monitoring method based on the device - Google Patents
Video security monitoring device and the monitoring method based on the device Download PDFInfo
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- CN108055514A CN108055514A CN201711496099.9A CN201711496099A CN108055514A CN 108055514 A CN108055514 A CN 108055514A CN 201711496099 A CN201711496099 A CN 201711496099A CN 108055514 A CN108055514 A CN 108055514A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
The present invention provides a kind of video security monitoring device and the monitoring method based on the device, belong to field of video monitoring, which includes:First video camera, the second video camera, hyperboloidal mirror, microcontroller and turn adjusting mechanism;First camera lens field angle can cover the hyperboloidal mirror, and the second video camera is connected with turning mechanism, and turning mechanism can drive the second camera horizon to rotate, to adjust the horizontal azimuth of the second video camera;Meanwhile turning mechanism can also drive the second video camera vertical direction to rotate, to adjust the pitch angle of second video camera;Microcontroller can obtain the image information of the first video camera and the second camera acquisition, and calculate the azimuth that details is needed to monitor and pitch angle, microcontroller turns mechanism by control and the second video camera is driven to turn to direction progress details linkage surveillance, and realization takes into account global the characteristics of being monitored with details.
Description
Technical field
The present invention relates to technical field of video monitoring, and in particular to a kind of video security monitoring device and based on the device
Monitoring method.
Background technology
Panoramic imaging techniques are be more than 180 degree half obtained using special imaging device on horizontally or vertically direction
Ball visual field or 360 degree of spherical surface visual field.Panoramic imagery Detection Techniques are accompanied by binary optical, large area array staring imaging device
Develop and a kind of new imaging technique for growing up with image rectification technology, its significant difference with traditional imaging detection system
It is ultra-large vision field.The realization method of omnidirectional imaging system mainly has fish eye lens, multiple-camera splicing and refraction-reflection.
Fish eye lens is to realize that ultra-wide angle is imaged using preposition negative lens, and technology maturation, maximum field of view angle is reachable at present
220 °, it is difficult to be further added by, and marginal distortion is serious.To realize that high quality imaging effect usually requires the lens group of 10 or more
It closes, system complex involves great expense, however cheap panorama picture of fisheye lens effect is poor, and rate is not high respectively.Multiple-camera splices
Refer to multiple video cameras and covering 360 ° of visual fields of level are distributed with different angle.Such scheme mainly faces system complex, image at present
Splice the problems such as real-time is poor, of high cost, splicing transition is fuzzy.Refractive and reflective panorama vision system is by light-sensitive element, and imaging is thoroughly
Mirror and quadric rotational surface speculum group are into big visual field (such as >=240 °), Integral imaging, low cost, space spherical surface
The advantages that coordinate setting, imaging are symmetrically, feeling of immersion is strong is highly suitable for the application of video security monitoring field.
But all of above panoramic imaging techniques often exist in safety monitoring application see entirely and see it is thinless, can not
Global the problem of being monitored with details is taken into account simultaneously, constrains its extensive use in protection and monitor field significantly.
The content of the invention
The first object of the present invention is to provide a kind of video security monitoring device, which can be real
It is existing global with details linkage surveillance, solve traditional security monitoring device see then to see entirely it is thinless, see detailed rules and regulations see incomplete, Wu Fatong
When take into account global the problem of being monitored with details.
The second object of the present invention is to provide a kind of monitoring method based on above-mentioned video security monitoring device, utilizes this
The location information of target can be accurately positioned in method.
Based on above-mentioned first purpose, video security monitoring device provided by the invention, including:First video camera, second are taken the photograph
Camera, hyperboloidal mirror, microcontroller and turn mechanism;
The same side of the reflecting surface of first video camera and second position for video camera in the hyperboloidal mirror, institute
The hyperboloidal mirror can be covered by stating the first camera lens field angle, and the optical axis of first video camera with it is described
The symmetry axis of hyperboloidal mirror is coaxially arranged;
Second video camera is connected with the mechanism of turning, and the mechanism of turning can drive the second video camera water
Flat turn is moved, to adjust the horizontal azimuth of the second video camera;Meanwhile the mechanism of turning can also drive second video camera
Vertical direction rotates, to adjust the pitch angle of second video camera;
The microcontroller can obtain the image information of first video camera and second camera acquisition, and calculate
Go out to need details monitor azimuth and pitch angle, the microcontroller by control turn mechanism drive the second video camera turn to
The orientation carries out details linkage surveillance.
Further, the mechanism of turning includes the first steering engine, the second steering engine, orientation stent and tilt mount;
The output shaft of first steering engine engages connection orientation stent by gear, and the orientation support level can be driven to turn
It is dynamic, to adjust the horizontal azimuth of the second video camera;It is connected between second steering engine and the orientation, second steering engine
Output shaft connects second video camera by tilt mount, to adjust the pitch angle of second video camera;
The microcontroller is by controlling the first steering engine and the second steering engine to link, the second video camera to be controlled to turn to respective party
To progress details monitoring.
Further, further include to accommodate the shell of first video camera and the hyperboloidal mirror.
Further, the shell includes upper cover, light-transmission tube and support tube;
The upper cover is connected with light-transmission tube one end, and the support tube connects with the one end of the light-transmission tube away from the upper cover
It connects;
The hyperboloidal mirror is connected with upper cover lower end, and first video camera is with the support tube close to the hyperbolic
One end connection of face speculum, first steering engine are connected by steering engine stent with support tube, the rotation axis of first steering engine
It is engaged by gear with orientation stent and connects and orientation support level rotation can be driven, and then adjust the level of the second video camera
Azimuth.
Further, the light-transmission tube uses tapered glass tube, and the major diameter openend of the light-transmission tube is connected on described
Lid, the minor diameter openend of the light-transmission tube connect the support tube.
Further, the shell further includes to accommodate the light permeable protection of second video camera, and the light transmission is protected
Shield is connected with the support tube.
Further, mounting bracket, the mounting bracket and the cage connection are further included, is set inside the mounting bracket
Put the power connector and data connector with the monolithic mechatronics.
Based on above-mentioned second purpose, the present invention provides a kind of monitoring sides based on above-mentioned video security monitoring device
Method comprises the following steps:
Step S1 calculates target R compared with the incident angle α of hyperboloidal mirror and angle of reflection β, to determine the second video camera
The pitch angle of monitoring objective R adjustment;
Step S2 calculates the horizontal azimuth of target RTo determine the level orientation of the second camera supervised target R adjustment
Angle;
Step S3, microcontroller is according to the incident angle α and horizontal azimuth of the target R being calculatedSynchronization Control second is taken the photograph
Camera turns the carry out details linkage surveillance to target R.
Wherein, above-mentioned step S1 comprises the following steps:
Any one symmetrical profile of hyperboloidal mirror is selected, xoy plane coordinate systems are set, if Hyperbolic Equation is:
Wherein, a, b are hyperbola face shape parameter, if e2=a2+b2, e is hyp focal length;The incident ray RQ of target R
Intersection point Q coordinates with hyperboloidal mirror reflection are (xq, yq), reflection light QC by camera lens into the first video camera carry out into
The picture point of picture is P (up, vp), up、vpIt is the image coordinate of picture point P, and can be obtained to be known from image;Calculate target R's
Incident angle α and angle of reflection β:
Wherein, f is the focal length of the first video camera, and δ is the Pixel Dimensions factor;Association type (1)-(3) calculate entering for target R
Firing angle α is:
Since distances of the target R apart from hyperboloidal mirror is imaged much larger than hyperboloidal mirror to second under normal circumstances
The distance of machine, therefore can be approximate using incident angle α as the second video camera pitch angle ω, and ω=α.
Above-mentioned step S2 calculates the horizontal azimuth of target RMethod be:
Target R corresponds to horizontal azimuthFor
Because device is in a rotationally symmetrical arrangement, therefore the control input value of the second camera horizon orientation adjusting and target R water
Square parallactic angleEqually, the horizontal azimuth of the second video camera is so far turned according to target R acquisitionsIt can then be asked with pitch angle ω
, you can realize the monitoring of the first camera pan and the linkage of the second camera details feature.
Using above-mentioned technical proposal, beneficial effects of the present invention have:
Video security monitoring device provided by the invention includes:First video camera, the second video camera, hyperboloidal mirror,
Microcontroller and turn mechanism;First video camera and the second position for video camera in the same side of the reflecting surface of the hyperboloidal mirror,
First camera lens field angle can cover the hyperboloidal mirror, and the optical axis of the first video camera and the hyperboloid
The axis of speculum is coaxial;Second video camera is connected with turning mechanism, and turning mechanism can drive the second camera horizon to rotate,
To adjust the horizontal azimuth of the second video camera;Meanwhile turning mechanism can also drive the second video camera vertical direction to turn
It is dynamic, to adjust the pitch angle of second video camera;Microcontroller can obtain the figure of the first video camera and the second camera acquisition
As information, and azimuth and the pitch angle in the orientation that details is needed to monitor are calculated, microcontroller is turned mechanism by control and driven
Second video camera is turned to the orientation and carries out details linkage surveillance.The video security monitoring device can realize that global and details joins
Dynamic monitoring, solve traditional security monitoring device see then to see entirely it is thinless, see detailed rules and regulations see it is incomplete, can not take into account simultaneously it is global with it is thin
The problem of section monitoring.
A kind of monitoring method based on above-mentioned video security monitoring device provided by the invention, can be accurate using this method
Position the location information of target.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of video security monitoring device provided in an embodiment of the present invention;
Fig. 2 is Fig. 1 dotted box portion enlarged drawings;
Fig. 3 is the control principle drawing of video security monitoring device provided in an embodiment of the present invention;
Fig. 4 is the light path principle schematic diagram of video security monitoring device provided in an embodiment of the present invention.
Icon:1- upper covers;2- hyperboloidal mirrors;3- light-transmission tubes;The first video cameras of 4-;5- support tubes;6- microcontrollers;7-
Second steering engine;8- tilt mounts;9- orientation stent;The first steering engines of 10-;The second video cameras of 11-;12- light permeable protections;13- electricity
Source interface;14- data-interfaces;15- mounting brackets.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
It refer to shown in Fig. 1-Fig. 2;The video security monitoring device provided in the embodiment of the present invention includes:First video camera
4th, the second video camera 11, hyperboloidal mirror 2, microcontroller 6 and mechanism is turned.
First video camera 4 and the second video camera 11 are located at the same side of the reflecting surface of hyperboloidal mirror 2, the first video camera
4 angles of view can cover hyperboloidal mirror 2, and the axis of the optical axis and hyperboloidal mirror 2 of the first video camera 4 is same
Axis;
Second video camera 11 is connected with turning mechanism, and turning mechanism can drive the second video camera 11 to horizontally rotate, to adjust
The horizontal azimuth of whole second video camera 11;Meanwhile turning mechanism can also drive 11 vertical direction of the second video camera to rotate, with
Adjust the pitch angle of the second video camera 11;
Microcontroller 6 can obtain the image information of the first video camera 4 and the acquisition of the second video camera 11, and it is thin to calculate needs
Azimuth and the pitch angle in the orientation of monitoring are saved, microcontroller 6 turns mechanism by control and the second video camera 11 is driven to turn to this
Orientation carries out details linkage surveillance.
The video security monitoring device can realize global and details linkage surveillance, solve traditional security monitoring device and see
It is complete then see it is thinless, see detailed rules and regulations are seen incomplete, global the problem of being monitored with details can not be taken into account simultaneously.
In the preferred embodiment of the present invention, this, which turns mechanism, includes the first steering engine 10, the second steering engine 7 and orientation branch
Frame 9;
First steering engine, 10 connection orientation stent 9, the first steering engine 10 can drive orientation stent 9 to horizontally rotate, to adjust
The horizontal azimuth of two video cameras 11;Second steering engine 7 is connected with orientation stent 9, and the output shaft of the second steering engine 7 passes through tilt mount
8 the second video cameras 11 of drive move, to adjust the pitch angle of the second video camera 11;
Monolithic section is by controlling the first steering engine 10 and the second steering engine 7 to link, the second video camera 11 to be controlled to turn to corresponding
Orientation carries out details linkage surveillance.
When it is implemented, the outer ring setting of orientation stent 9 is with teeth, the output shaft of the first steering engine 10 passes through gear and orientation branch
The tooth engagement connection of 9 outer ring of frame, so that the first steering engine 10 can drive stent 9 horizontal 360-degree in orientation to rotate.Due to the second steering engine
7 are connected with orientation stent 9, and 9 synchronous drive the second steering engine 7 of orientation stent and the rotation of 11 horizontal 360-degree of the second video camera are realized
Adjusting to 11 horizontal azimuth of the second video camera.
In the preferred embodiment of the present invention, further include to accommodate the first video camera 4 and hyperboloidal mirror 2
Shell, the shell play the role of protecting the first video camera 4 and hyperboloidal mirror 2.
In the preferred embodiment of the present invention, shell includes upper cover 1, light-transmission tube 3 and support tube 5;
When it is implemented, upper cover 1 is located at the top of whole device, 1 bottom surface of upper cover and 3 one end of light-transmission tube (being illustrated as upper end)
Connection, it is preferable that for 3 upper end of light-transmission tube by can be adhesively fixed by solid gum and the lower end of upper cover 1, support tube 5 is saturating with this
One end (be illustrated as lower end) connection of the light pipe 3 away from upper cover 1, it is preferable that support tube 5 can also use solid gum with light-transmission tube 3
It is fixed.
Hyperboloidal mirror 2 is located in light-transmission tube 3, and the fixing end of hyperboloidal mirror 2 is connected with 1 lower end of upper cover, preferably
Ground, fixing end and 1 lower end of upper cover of hyperboloidal mirror 2 use thread connecting mode, the two to be facilitated to be dismantled.
First video camera 4 is connected by 4 mounting bracket of the first video camera with support tube 5 close to one end of hyperboloidal mirror 2,
Meanwhile first video camera 4 be inserted into light-transmission tube 3.Preferably, the outer rim of 4 mounting bracket of the first video camera passes through bayonet and support
Pipe 5 connects, in order to which the two is dismantled.The axis of the optical axis and hyperboloidal mirror 2 of first video camera 4 is coaxially arranged.
Stent 9 top in orientation is connected by swivel bearing with 5 bottom of support tube.First steering engine, 10 fuselage is fixed on orientation branch
9 one end of frame, output shaft are engaged by gear with circle outside on swivel bearing, and the first steering engine 10 passes through rotating output shaft gear energy
It turns in 9 orientation of driving orientation stent.Second steering engine 7 is fixed on orientation stent 9,8 one end of output axis connection tilt mount, the
Two video cameras 11 are fixed on tilt mount 8.Second steering engine 7 drives tilt mount 8 to rotate by rotating output shaft, realizes second
11 pitching of video camera is turned.
In the preferred embodiment of the present invention, light-transmission tube 3 uses tapered glass tube, can so reduce to the greatest extent under device
The blind area of side, the major diameter openend connection upper cover 1 of light-transmission tube 3, the minor diameter openend connection support tube 5 of light-transmission tube 3.
In the preferred embodiment of the present invention, shell further includes to accommodate the light permeable protection of the second video camera 11
12, light permeable protection 12 is connected with support tube 5.When it is implemented, light permeable protection 12 can be connected by solid gum and support tube 5
It connects, in order to which the second video camera 11 is found a view.
The shell of a closing can be surrounded jointly by above-mentioned upper cover 1, light-transmission tube 3, support tube 5 and light permeable protection 12
Body plays the protection to the first video camera 4, the second video camera 11, hyperboloidal mirror 2 and first steering engine 10, the second steering engine 7
Effect.
In the preferred embodiment of the present invention, microcontroller 6 is arranged in support tube 5, can play guarantor to microcontroller 6
Shield acts on.
In the preferred embodiment of the present invention, mounting bracket 15, mounting bracket 15 and cage connection are further included, is installed
15 inside of stent sets the power interface 13 being electrically connected with microcontroller 6 and data-interface 14.
When it is implemented, mounting bracket 15 is located at 5 one side of support tube, 15 one end of mounting bracket is fixed by screws in support
On the outer wall of pipe 5.Power interface 13 is located in the tube chamber of mounting bracket 15, passes through solid gum and 15 tube chamber interior power of mounting bracket
13 mounting groove of interface is fixed.Data-interface 14 is located at mounting bracket 15 in tube chamber, passing through solid gum and 15 tube chamber of mounting bracket
Interior 14 mounting groove of data-interface is fixed.
Microcontroller 6 is signal processing and the control centre of video security monitoring device of the present invention, and power supply wiring mouth passes through electricity
Line is connected with microcontroller 6, and stable power supply is provided for it;Data connection mouth is connected by network data line with microcontroller 6, is it
Data communication is provided.Microcontroller 6 is respectively used to obtain the real-time of the first video camera 4 acquisition of global monitoring by USB data line
Global picture and the close-up detail picture for obtaining the second video camera 11 acquisition of details monitoring.Finally, microcontroller 6 passes through electricity
Line is connected respectively with the first steering engine 10, the second steering engine 7, which needs details to monitor by analyzing global picture and calculating
Azimuth and pitch angle, and export PWM wave control turned for the second video camera 11 of details monitoring to the direction carry out it is thin
Save linkage surveillance.
During work, for global monitoring the first video camera 4 optical axis vertically upward, completely covering is double for the angle of view
Curved reflector 2.Since the reflecting surface of hyperboloidal mirror 2 is rotation symmetric design, from each side in surrounding scene
To light eventually entered into the first video camera 4 and be imaged by the reflection of hyperboloidal mirror 2.Make video security monitoring of the present invention
Device has 360 ° of field angles of level orientation, and vertical field of view angle is determined by reflecting curved surface mirror type, video security protection prison of the present invention
The vertical field of view angle for controlling device is 220 °.First video camera 4 carries out global monitoring to surrounding scene, when finding have in surrounding scene
During suspicious object, microcontroller 6 is calculated suspicious object relative bearing and is bowed by the image of processing the first video camera 4 acquisition
The elevation angle, and export PWM wave control azimuth steering engine and pitch-control motor is turned respectively, the second video camera 11 for being used in details monitoring is adopted
Collect the detail image information of suspicious object, it is final to realize global and details linkage surveillance.
The present invention also provides a kind of monitoring methods based on above-mentioned video security monitoring device, refer to Fig. 4, wherein
L is the distance of the first video camera and the second video camera;P is that target R is imaged picture point in the first video camera;C is the first video camera
The optical center of camera lens.
The monitoring method comprises the following steps:
Step S1 calculates target R compared with the incident angle α of hyperboloidal mirror and angle of reflection β, to determine the second video camera
The pitch angle of monitoring objective R adjustment;
Step S2 calculates the horizontal azimuth of target RTo determine the level orientation of the second camera supervised target R adjustment
Angle;
Step S3, microcontroller is according to the incident angle α and horizontal azimuth of the target R being calculatedSynchronization Control second is taken the photograph
Camera turns the carry out details linkage surveillance to target R.
Wherein, above-mentioned step S1 comprises the following steps:
Any one symmetrical profile of hyperboloidal mirror is selected, xoy plane coordinate systems are set, if Hyperbolic Equation is:
Wherein, a, b are hyperbola face shape parameter, if e2=a2+b2, e is hyp focal length;The incident light of goal hypothesis R
Line RQ and the intersection point Q coordinates of hyperboloidal mirror reflection are (xq, yq), reflection light QC by camera lens into the first video camera into
The picture point of row imaging is P (up, vp), up、vpIt is the image coordinate of picture point P, can be obtained from image;Calculate the incidence of target R
Angle α and angle of reflection β:
Wherein, f is the focal length of the first video camera, and δ is the Pixel Dimensions factor;Association type (1)-(3) can calculate target R's
Incident angle α is:
Since distances of the target R apart from hyperboloidal mirror is imaged much larger than hyperboloidal mirror to second under normal circumstances
The distance of machine, therefore can be approximate using incident angle α as the second video camera pitch angle ω, and ω=α.
Above-mentioned step S2 calculates the horizontal azimuth of target RMethod be:
Target R corresponds to horizontal azimuthFor
Because the video security monitoring device is in a rotationally symmetrical arrangement, therefore the control that the second camera horizon orientation is adjusted is defeated
Enter value and target R horizontal azimuthsEqually, the horizontal azimuth of the second video camera is so far turned according to target R acquisitionsWith bow
Elevation angle ω can then be acquired, you can realize the monitoring of the first camera pan and the linkage of the second camera details feature.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that:Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of video security monitoring device, which is characterized in that including:First video camera, the second video camera, hyperboloid reflection
Mirror, microcontroller and turn mechanism;
The same side of the reflecting surface of first video camera and second position for video camera in the hyperboloidal mirror, described
One camera lens field angle can cover the hyperboloidal mirror, and the optical axis of first video camera and the hyperbolic
The symmetry axis of face speculum is coaxially arranged;
Second video camera is connected with the mechanism of turning, and the mechanism of turning can drive second camera horizon to turn
It is dynamic, to adjust the horizontal azimuth of the second video camera;Meanwhile the mechanism of turning can also drive second video camera vertical
Direction rotates, to adjust the pitch angle of second video camera;
The microcontroller can obtain the image information of first video camera and second camera acquisition, and calculate need
The azimuth and pitch angle that details monitors are wanted, the microcontroller turns mechanism by control and the second video camera is driven to turn to the party
Position carries out details linkage surveillance.
2. video security monitoring device according to claim 1, which is characterized in that the mechanism of turning includes the first rudder
Machine, the second steering engine, orientation stent and tilt mount;
The output shaft of first steering engine engages connection orientation stent by gear, and the orientation support level can be driven to rotate, with
Adjust the horizontal azimuth of the second video camera;It is connected between second steering engine and the orientation, the output of second steering engine
Axis connects second video camera by tilt mount, to adjust the pitch angle of second video camera;
The microcontroller by the way that the first steering engine and the second steering engine is controlled to link, with control the second video camera turn to respective direction into
Row details monitors.
3. video security monitoring device according to claim 2, which is characterized in that further include to accommodate described first and take the photograph
The shell of camera and the hyperboloidal mirror.
4. video security monitoring device according to claim 3, which is characterized in that the shell includes upper cover, light-transmission tube
And support tube;
The upper cover is connected with light-transmission tube one end, and the support tube is connected with the one end of the light-transmission tube away from the upper cover;
The hyperboloidal mirror is connected with upper cover lower end, and first video camera is anti-close to the hyperboloid with the support tube
One end connection of mirror is penetrated, first steering engine is connected by steering engine stent with support tube, and the rotation axis of first steering engine passes through
Gear is engaged with orientation stent to be connected and can drive orientation support level rotation, and then adjusts the level orientation of the second video camera
Angle.
5. video security monitoring device according to claim 4, which is characterized in that the light-transmission tube uses cone-shaped glass
Pipe, the major diameter openend of the light-transmission tube connect the upper cover, and the minor diameter openend of the light-transmission tube connects the support
Pipe.
6. video security monitoring device according to claim 4, which is characterized in that the shell further includes to accommodate institute
The light permeable protection of the second video camera is stated, the light permeable protection is connected with the support tube.
7. according to claim 3-6 any one of them video security monitoring devices, which is characterized in that mounting bracket is further included,
The mounting bracket and the cage connection, set inside the mounting bracket with the power interface of the monolithic mechatronics and
Data-interface.
A kind of 8. monitoring method based on claim 1-7 any one of them video security monitoring devices, which is characterized in that bag
Include following steps:
Step S1 calculates target R compared with the incident angle α of hyperboloidal mirror and angle of reflection β, to determine that second is camera supervised
The pitch angle of target R adjustment;
Step S2 calculates the horizontal azimuth of target RTo determine the horizontal azimuth of the second camera supervised target R adjustment;
Step S3, microcontroller is according to the pitch angle and horizontal azimuth of the target R being calculatedThe first video camera of Synchronization Control and
Second video camera is to the carry out details linkage surveillance of target R.
9. the monitoring method of video security monitoring device according to claim 8, which is characterized in that the step S1 includes
Following steps:
Any one symmetrical profile of hyperboloidal mirror is selected, xoy plane coordinate systems are set, if Hyperbolic Equation is:
Wherein, a, b are hyperbola face shape parameter, and e is hyp focal length, if e2=a2+b2;The incident ray RQ of target R with it is double
The intersection point Q coordinates of curved reflector are (xq, yq), reflection light QC is imaged by camera lens into the first video camera
Picture point is P (up, vp), up、vpIt is the image coordinate of picture point P, thus calculates the incident angle α of target R and angle of reflection β:
Wherein, f is the focal length of the first video camera, and δ is the Pixel Dimensions factor;Association type (1)-(3) calculate the incidence angle of target R
α is:
Incident angle α is set as the second video camera pitch angle ω, and ω=α.
10. the monitoring method of video security monitoring device according to claim 9, which is characterized in that the step S2 meters
Calculate the horizontal azimuth of target RMethod be:
Target R corresponds to horizontal azimuthFor
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108806150A (en) * | 2018-05-31 | 2018-11-13 | 福建浩邦锐兴智能工程建设有限公司 | A kind of intelligent safety prevention warning system |
CN115348396A (en) * | 2022-06-27 | 2022-11-15 | 浙江华感科技有限公司 | Optical axis adjustment mechanism and supervisory equipment |
CN115460351A (en) * | 2022-10-25 | 2022-12-09 | 浙江华智新航科技有限公司 | Internet of things security equipment capable of eliminating monitoring dead angle |
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CN109040687A (en) * | 2017-12-07 | 2018-12-18 | 北京机械设备研究所 | Video security monitoring device and monitoring method based on the device |
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CN103248806A (en) * | 2013-04-26 | 2013-08-14 | 黑龙江科技学院 | Device for single camera to achieve spatial 360 degree annular panoramic and local precise imaging |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108806150A (en) * | 2018-05-31 | 2018-11-13 | 福建浩邦锐兴智能工程建设有限公司 | A kind of intelligent safety prevention warning system |
CN115348396A (en) * | 2022-06-27 | 2022-11-15 | 浙江华感科技有限公司 | Optical axis adjustment mechanism and supervisory equipment |
CN115348396B (en) * | 2022-06-27 | 2024-02-27 | 浙江华感科技有限公司 | Optical axis adjusting mechanism and monitoring equipment |
CN115460351A (en) * | 2022-10-25 | 2022-12-09 | 浙江华智新航科技有限公司 | Internet of things security equipment capable of eliminating monitoring dead angle |
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