CN206100228U - Network camera - Google Patents
Network camera Download PDFInfo
- Publication number
- CN206100228U CN206100228U CN201621124346.3U CN201621124346U CN206100228U CN 206100228 U CN206100228 U CN 206100228U CN 201621124346 U CN201621124346 U CN 201621124346U CN 206100228 U CN206100228 U CN 206100228U
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- China
- Prior art keywords
- optical filter
- permanent magnet
- web camera
- precalculated position
- magnet assembly
- Prior art date
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Abstract
The utility model provides a network camera. Network camera includes a camera lens, a image sensor, a filter, a magnetism sensing element and a controller. Image sensor is located on the light path of camera lens to capture an image. Filter set up in the camera lens with between the image sensor. Filter includes a light filter, a permanent magnet subassembly and an electromagnet assembly. Permanent magnet subassembly interlock in the light filter. Electromagnet assembly is located the outside of permanent magnet subassembly. Magnetism sensing element set up in one side of permanent magnet subassembly to according to a magnetic force intensity output alarm signal. The controller is for the foundation alarm signal, the optionally drive electromagnet assembly produces magnetic force, in order to remove or be fixed the permanent magnet subassembly reaches the light filter makes the light filter is located on the light path or skew in the light path.
Description
Technical field
This utility model is related to a kind of video camera, and more particularly to a kind of web camera.
Background technology
With the development of science and technology, various web camera is constantly weeded out the old and bring forth the new.Web camera can be used to carry out remotely
Video conference or security monitoring.In the case of the resolution raising that the network bandwidth increases with image sensor so that network is taken the photograph
Camera is widely used to various situations.
In order to increase definition of the web camera under sunlight strong environment, majority of network camera carrying optical filter
To filter the light of part wavelength.However, optical filter is easily vibrated or artificial collision and offset, cause the normal nothings of optical filter Jing
Method effectively plays the effect for filtering on tram.
Utility model content
The purpose of this utility model is to provide a kind of web camera, and which senses permanent magnetic using magnetic sensing components
The magnetism intensity of iron component, to learn whether optical filter is located at precalculated position.When optical filter is not located at precalculated position, Ke Yitong
Cross electromagnet assembly to move permanent magnet assembly and optical filter so that optical filter can be located at precalculated position.
It is that, up to above-mentioned purpose, this utility model provides a kind of web camera, and which includes：
One camera lens；
One image sensor, on a light path of the camera lens, to capture an image；
One filtering apparatus, are arranged between the camera lens and the image sensor, and the filtering apparatus include：
One optical filter；
One permanent magnet assembly, is linked in the optical filter；And
One electromagnet assembly, positioned at the outside of the permanent magnet assembly；
One magnetic sensing components, are arranged at the side of the permanent magnet assembly, to lead to according to magnetism intensity output one
Know signal；And
One controller, according to the notification signal, optionally to drive the electromagnet assembly to produce magnetic force, to move
Dynamic or the fixed permanent magnet assembly and the optical filter, make the optical filter be located on the light path or deviate from described
Light path.
Above-mentioned web camera, wherein the magnetic sensing components are a hall effect sensor or a magnetic red sensing
Device.
Above-mentioned web camera, wherein the controller includes：
One light sensing unit, to sense an environmental light brightness；
One position setup unit, according to the environmental light brightness, to determine a precalculated position of the optical filter；
One judging unit, according to the notification signal, to judge whether the optical filter is located at the precalculated position；With
And
One driver element, if the optical filter is not located at the precalculated position, exports a driving voltage to the electromagnetism
Iron component, with the mobile permanent magnet assembly and the optical filter, makes the optical filter be located at the precalculated position.
Above-mentioned web camera, wherein the judging unit and the driver element are performed every a predetermined interval
Once.
Above-mentioned web camera, wherein the filtering apparatus are further included：
One support plate, to carry the optical filter, the permanent magnet assembly is arranged on support plate.
Above-mentioned web camera, wherein the electromagnet assembly is arranged at outside the support plate.
Above-mentioned web camera, wherein the magnetic sensing components are arranged at outside the support plate.
Above-mentioned web camera, wherein the optical filter is moved along a moving direction, the permanent magnet assembly and institute
State electromagnet assembly to arrange along the moving direction.
Above-mentioned web camera, wherein the magnetic sensing components are located at outside the electromagnet assembly.
Above-mentioned web camera, wherein the driver element is a universal input/output port or a voltage modulation
Device.
This utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to this utility model
Restriction.
Description of the drawings
Fig. 1 illustrates the schematic diagram of the light path of the web camera according to an embodiment of the present utility model；
Fig. 2 illustrates the schematic diagram that the web camera of Fig. 1 is located at day mode；
Fig. 3 illustrates the signal that the web camera of Fig. 1 is located at night mode；
The flow chart that Fig. 4 illustrates the control method of the web camera according to one embodiment of this utility model；
Fig. 5 illustrates an instance graph of Fig. 4；
Fig. 6 illustrates the schematic diagram that day mode is located at according to the filtering apparatus of another embodiment；
Fig. 7 illustrates the schematic diagram that night mode is located at according to the filtering apparatus of another embodiment.
Wherein, reference
100：Web camera
110：Camera lens
120：Image sensor
130、230：Filtering apparatus
131：Framework
132、232：Optical filter
133、233：Permanent magnet assembly
1331：First permanent magnet
1332：Second permanent magnet
134、234：Electromagnet assembly
1341：First electric magnet
1342：Second electric magnet
135：Support plate
140：Magnetic sensing components
150：Controller
151：Timing unit
152：Position setup unit
153：Judging unit
154：Driver element
E0：Environmental light brightness
H1：Perforate
L0、L1：Precalculated position
OL：Light path
S0：Notification signal
S110、S120、S130、S140：Process step
T1、T2、T3、T4、T5：Time point
TH：Marginal value
V0：Driving voltage
Specific embodiment
Below in conjunction with the accompanying drawings structural principle of the present utility model and operation principle are described in detail：
Fig. 1 is refer to, which illustrates the signal of the light path of the web camera 100 according to an embodiment of the present utility model
Figure.Web camera 100 includes a camera lens 110, an image sensor 120 and a filtering apparatus 130.Image sensor 120
A Charged Coupled Device (CCD) or a complementary metal oxide silicon sensor (CMOS sensor) in this way.
As shown in figure 1, image sensor 120 is located on a light path OL of camera lens 110, with pick-up image.Filtering apparatus
130 are arranged between camera lens 110 and image sensor 120.Light of the filtering apparatus 130 to optionally filtration subwave length
Line, or brightness is reduced, to increase the definition of image.In general, web camera 100 may be set to day mode and night
Pattern.During the day, the ultraviolet for scattering in air is more, and brightness is higher, therefore can start day mode to use the dress that filters
130 filtration light are put, to increase the definition of image.During night, then not using filtering apparatus 130 filtering light, to guarantee
The brightness of image.
Fig. 2～3 are refer to, Fig. 2 illustrates the schematic diagram that the web camera 100 of Fig. 1 is located at day mode, and Fig. 3 illustrates Fig. 1
Web camera 100 be located at night mode schematic diagram.Filtering apparatus 130 include a framework 131,132 (oblique line of an optical filter
Shading part), a permanent magnet assembly 133, an electromagnet assembly 134 and a support plate 135.Framework 131 is to carry optical filter
132.Framework 131 has a perforate H1.Perforate H1 is on light path OL (being illustrated in Fig. 1).
As shown in Fig. 2 optical filter 132 is had been moved on perforate H1, so that optical filter 132 is on light path OL.Such as Fig. 3
It is shown, 132 already out perforate H1 of optical filter, so that optical filter 132 is not on light path OL.
Support plate 135 is to carry optical filter 132.Permanent magnet assembly 133 is linked in optical filter 132.For example, forever
Magnet assemblies 133 can be arranged on support plate 135 so that support plate 135, optical filter 132 and permanent magnet assembly 133 connect together
It is dynamic.In the present embodiment, permanent magnet assembly 133 includes one first permanent magnet 1331 and one second permanent magnet 1332.The
One permanent magnet 1331 is arranged at the side of optical filter 132.Second permanent magnet 1332 is arranged at the opposite side of optical filter 132.
The internal magnetic field lines direction of the second permanent magnet 1332 is same as the internal magnetic field lines direction of the first permanent magnet 1331.Namely
Say, the S poles of the first permanent magnet 1331 can all be located at its same side, the first permanent magnet with the S poles of the second permanent magnet 1332
The N poles of 1331 N poles and the second permanent magnet 1332 can also be located at its same side.
Electromagnet assembly 134 is located at the outside of permanent magnet assembly 133, and not with support plate 135, optical filter 132 and permanent
Magnet assemblies 133 are interlocked.In the present embodiment, electromagnet assembly 134 is located at outside support plate 135.If optical filter 132 can be along a movement
Direction D1 is moved, then permanent magnet assembly 133 and electromagnet assembly 134 can be arranged along moving direction D1.In the present embodiment, electricity
Magnet assemblies 134 include one first electric magnet 1341 and one second electric magnet 1342.First electric magnet 1341 is arranged at optical filter
132 side.Second electric magnet 1342 is arranged at the opposite side of optical filter 132.When electromagnet assembly 134 is injected into electric current,
The S poles of the S poles of the first electric magnet 1341 and the second electric magnet 1342 can be located at its opposition side, the N poles of the first electric magnet 1341 and
The N poles of the second electric magnet 1342 can also be located at its opposition side so that the first electric magnet 1341 and the second electric magnet 1342 pairs are permanent
Magnet assemblies 133 provide a suction and a thrust (or a thrust and a suction) respectively.
Fig. 2～3 are refer to, web camera 100 further includes a magnetic sensing components 140 and a controller 150.Magnetic sense
The side that component 140 is arranged at permanent magnet assembly 133 is surveyed, a notification signal S0 is exported according to a magnetism intensity.In this reality
Apply in example, magnetic sensing components 140 are located at outside support plate 135 and electromagnet assembly 134.Magnetic sensing components 140 are, for example, one
Hall effect sensor (Hall Effect Sensor) or a magnetic red sensor (Reed Switch).In order to avoid magnetic sense
Surveying when component 140 detects the magnetic force of permanent magnet assembly 133 is not affected by electromagnet assembly 134, and controller 150 can stagger magnetic
The running time of property sensing component 140 and electromagnet assembly 134.
As shown in Fig. 2 when optical filter 132 is located at perforate H1, permanent magnet assembly 133 is close to magnetic sensing components 140.
If magnetic sensing components 140 are hall effect sensor, magnetic sensing components 140 can be exported according to stronger magnetism intensity
The notification signal S0 of a certain voltage level (e.g. 3 volts).If magnetic sensing components 140 are magnetic red sensor, magnetic sensing
Component 140 according to stronger magnetism intensity, can export the notification signal S0 of a certain voltage level (e.g. 0 volt).
As shown in figure 3, when optical filter 132 leaves perforate H1, permanent magnet assembly 133 from magnetic sensing components 140 farther out.
If magnetic sensing components 140 are hall effect sensor, magnetic sensing components 140 can be exported according to weaker magnetism intensity
The notification signal S0 of another voltage level (e.g. 1 volt).If magnetic sensing components 140 are magnetic red sensor, magnetic sensing
Component 140 according to weaker magnetism intensity, can export the notification signal S0 of another voltage level (e.g. 3 volts).So
One, controller 150 can learn the position of optical filter 132 according to the magnitude of voltage of notification signal S0.
Controller 150 may include a light sensing unit 151, a position setup unit 152, a judging unit 153 and a drive
Moving cell 154.Controller 150 is, for example, the storage device of a chip, a circuit, a circuit board or storage arrays program code.
For example, controller 150 can be for an arithmetic processor.
Controller 150 can produce magnetic force according to notification signal S0, DM component 134, to move or fix forever
Magnet assemblies 133 and optical filter 132, make optical filter 132 on light path OL or deviate from light path OL long.
Light sensing unit 151 is to sense environmental light brightness E0.Position setup unit 152 is to according to environmental light brightness
E0, sets a precalculated position L0 of optical filter 132.For example, it is white more than or equal to marginal value TH in environmental light brightness E0
In day mode, precalculated position L0 represents optical filter 132 positioned at (i.e. in the position of Fig. 2) at perforate H1；It is little in environmental light brightness E0
In the night mode of marginal value TH, precalculated position L0 represents optical filter 132 not perforate H1 (i.e. in the position of Fig. 3).
Whether judging unit 150 is according to notification signal S0, to judge optical filter 132 positioned at precalculated position L0.If filtering
Piece 132 is not located at precalculated position L0, then driver element 154 exports a driving voltage V0 to electromagnet assembly 134, with mobile permanent
Magnet assemblies 133 and optical filter 132, enable optical filter 132 to be located at precalculated position L0.Driver element 154 can also provide all
Changing signal makes electromagnet assembly 134 be connected to a voltage source or a current source.For example, driver element 154 for example can be by ICR
The universal input/output port of driving IC or the collocation one of multiple transistors (General-purpose input/output,
GPIO) control signal is realizing.The voltage of the output of driver element 154 can be directly fed to electromagnet assembly 134.Or, another
In one embodiment, driver element (not illustrating) can be the voltage modulation device outside controller 150, enough to provide
Driving voltage is with DM component 134.
Fig. 4～5 are refer to, Fig. 4 illustrates the control method of the web camera 100 according to one embodiment of this utility model
Flow chart, Fig. 5 illustrate an instance graph of Fig. 4.First, in step s 110, the sensing of magnetic sensing components 140 magnetism intensity.
Then, in the step s 120, magnetic sensing components 140 according to magnetism intensity output notice signal S0 to controller
150 judging unit 153.As shown in figure 5, in the day mode of time point T1～time point T3, optical filter 132 should all be located at
The magnitude of voltage of the precalculated position L0 at perforate H1, notification signal S0 all should be 3 volts.In the night of time point T3～time point T5
In pattern, optical filter 132 should all be located remotely from the precalculated position L1 of perforate H1, and the magnitude of voltage of notification signal S0 all should be 1 volt.
In step s 130, whether judging unit 153 judges optical filter 132 positioned at precalculated position L0, L1.As shown in figure 5,
In time point T1, environmental light brightness E0 has been higher than marginal value TH, but optical filter 132 is also at away from perforate H1, and is not located at
The precalculated position L0 of day mode, therefore flow process will be into step S140.
In step S140,154 outputting drive voltage V0 of driver element to electromagnet assembly 134, to move permanent magnet
Component 133 and optical filter 132, enable optical filter 132 to be located at precalculated position L0, L1.As shown in figure 5, in time point T1, driving
Moving cell 154 provides 3.3 volts of driving voltage V0 to electromagnet assembly 134, with permanent magnet assembly 133 and the filter of moving right
Mating plate 132, enables optical filter 132 to move to right to the precalculated position L0 of day mode.
As long as that is, controller 150 is according to environmental light brightness E0 and sets precalculated position L0 and L1, in optical filter
132 not be located at precalculated position L0 and L1 when, you can by the sensing of step S110, the judgement of step S130 and the drive of step S140
Move and carry out automatic mobile spectral filter 132 to precalculated position L0 and L1.
Referring again to the example of Fig. 5, in time point T2, the possible vibrated or artificial collision of web camera 100 makes
Obtain optical filter 132 to move to left, and have left precalculated position L0.Now, due to optical filter 132 and permanent magnet assembly 133 away from
Magnetic sensing components 140, the voltage of notification signal S0 are reduced to 1 volt by 3 volts.Therefore, driving voltage V0 accordingly must rise
Up to 3.3 volts, to move to right optical filter 132 so that optical filter 132 can be moved to right and is moved back at perforate H1.
Similarly, in time point T3, environmental light brightness E0 has been less than marginal value TH, but optical filter 132 is also in perforate H1
Place, and not positioned at the precalculated position L1 of night mode, therefore driving voltage V0 must be reduced to -3.3 volts, to move to left optical filter
132 so that optical filter 132 can leave perforate H1.
In time point T4, web camera 100 is possible and vibrated or artificial collision so that optical filter 132 is moved to right,
And have left precalculated position L1.Now, as optical filter 132 and permanent magnet assembly 133 are near magnetic sensing components 140,
The voltage of notification signal S0 is upgraded to 3 volts by 1 volt.Therefore, driving voltage V0 must accordingly be reduced to -3.3 volts, with a left side
Move optical filter 132 so that optical filter 132 can leave perforate H1.
In above-mentioned control method, judging unit 153 and driver element 154 can be every a predetermined intervals (for example
It is 1 minute or 30 seconds) perform once, to guarantee that optical filter 132 can be correctly positioned at precalculated position L0.
Additionally, above-mentioned position setup unit 152 is setting precalculated position L0, L1 according to luminous environment brightness E0, another
In embodiment, position setup unit 152 also can set precalculated position L0, L1 according to temporal information.For example, can be by 5：00
～18：The 00 precalculated position L0 for being set as day mode, and by 0：00～5：00 and 18：00～24：00 is set as night mode
Precalculated position L1.
Fig. 6～7 are refer to, Fig. 6 illustrates the schematic diagram that day mode is located at according to the filtering apparatus 230 of another embodiment,
Fig. 7 illustrates the schematic diagram that night mode is located at according to the filtering apparatus 230 of another embodiment.In another embodiment, permanent magnetic
Iron component 233 can only include a permanent magnet.Electromagnet assembly 234 can also only include an electric magnet.Here is implemented
In example, by the voltage for applying different polarity to electromagnet assembly 234, also not Tongfang can be produced to permanent magnet assembly 233
To thrust or suction, and then mobile spectral filter 232.In another embodiment, magnetic sensing components 140 also may be disposed at relatively
In the opposite side of permanent magnet assembly 233.
Above-mentioned various embodiments sense the magnetism intensity of permanent magnet assembly 133,233 by magnetic sensing components 140,
To learn optical filter 132,232 whether positioned at precalculated position L0.When optical filter 132,232 is not located at precalculated position L0, can be with
Permanent magnet assembly 133,233 and optical filter 132,232 are moved by electromagnet assembly 134,234 so that optical filter 132,
232 can be located at precalculated position L0.
Certainly, this utility model can also have other various embodiments, spiritual and its essence without departing substantially from this utility model
In the case of, those of ordinary skill in the art work as and can make various corresponding changes and deformation, but these according to this utility model
Corresponding change and deformation should all belong to the scope of the claims appended by this utility model.
Claims (10)
1. a kind of web camera, it is characterised in that the web camera includes：
One camera lens；
One image sensor, on a light path of the camera lens, to capture an image；
One filtering apparatus, are arranged between the camera lens and the image sensor, and the filtering apparatus include：
One optical filter；
One permanent magnet assembly, is linked in the optical filter；And
One electromagnet assembly, positioned at the outside of the permanent magnet assembly；
One magnetic sensing components, are arranged at the side of the permanent magnet assembly, to notify letter according to magnetism intensity output one
Number；And
One controller, according to the notification signal, optionally to drive the electromagnet assembly to produce magnetic force, with mobile or
The fixed permanent magnet assembly and the optical filter, make the optical filter be located on the light path or deviate from the light path
Footpath.
2. web camera as claimed in claim 1, it is characterised in that the magnetic sensing components are Hall effect sensing
Device or a magnetic red sensor.
3. web camera as claimed in claim 1, it is characterised in that the controller includes：
One light sensing unit, to sense an environmental light brightness；
One position setup unit, according to the environmental light brightness, to determine a precalculated position of the optical filter；
One judging unit, according to the notification signal, to judge whether the optical filter is located at the precalculated position；And
One driver element, if the optical filter is not located at the precalculated position, exports a driving voltage to the electric magnet group
Part, with the mobile permanent magnet assembly and the optical filter, makes the optical filter be located at the precalculated position.
4. web camera as claimed in claim 3, it is characterised in that the judging unit and the driver element are every
Predetermined interval is performed once.
5. web camera as claimed in claim 1, it is characterised in that the filtering apparatus are further included：
One support plate, to carry the optical filter, the permanent magnet assembly is arranged on support plate.
6. web camera as claimed in claim 5, it is characterised in that the electromagnet assembly is arranged at outside the support plate.
7. web camera as claimed in claim 5, it is characterised in that the magnetic sensing components are arranged at the support plate
Outward.
8. web camera as claimed in claim 1, it is characterised in that the optical filter is moved along a moving direction, described
Permanent magnet assembly and the electromagnet assembly are arranged along the moving direction.
9. web camera as claimed in claim 1, it is characterised in that the magnetic sensing components are located at the electric magnet group
Outside part.
10. web camera as claimed in claim 1, it is characterised in that the driver element is that a universal input is defeated
Exit port or a voltage modulation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621124346.3U CN206100228U (en) | 2016-10-14 | 2016-10-14 | Network camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621124346.3U CN206100228U (en) | 2016-10-14 | 2016-10-14 | Network camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206100228U true CN206100228U (en) | 2017-04-12 |
Family
ID=58483262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621124346.3U Active CN206100228U (en) | 2016-10-14 | 2016-10-14 | Network camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206100228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2565406A (en) * | 2017-06-05 | 2019-02-13 | Ford Global Tech Llc | Filter adjustment of vehicle cameras |
| US10334187B2 (en) | 2017-08-07 | 2019-06-25 | Ford Global Technologies, Llc | Adjustable stacked filter arrays for vehicle cameras |
-
2016
- 2016-10-14 CN CN201621124346.3U patent/CN206100228U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2565406A (en) * | 2017-06-05 | 2019-02-13 | Ford Global Tech Llc | Filter adjustment of vehicle cameras |
| US10474009B2 (en) | 2017-06-05 | 2019-11-12 | Ford Global Technologies, Llc | Filter adjustment of vehicle cameras |
| US10334187B2 (en) | 2017-08-07 | 2019-06-25 | Ford Global Technologies, Llc | Adjustable stacked filter arrays for vehicle cameras |
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