CN106200247A - A kind of projector possessing fingerprint identification function - Google Patents
A kind of projector possessing fingerprint identification function Download PDFInfo
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- CN106200247A CN106200247A CN201610837382.2A CN201610837382A CN106200247A CN 106200247 A CN106200247 A CN 106200247A CN 201610837382 A CN201610837382 A CN 201610837382A CN 106200247 A CN106200247 A CN 106200247A
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- projector
- central processing
- processing unit
- signal
- focusing
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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
- G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- 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
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
Abstract
The invention discloses a kind of projector possessing fingerprint identification function, relate to porjector technology field, it is characterised in that it includes: casing, the top of described casing is provided with metal inductive disks；It is provided with camera lens in described casing, described camera lens stretches out from the first side of casing, and the first side of described casing is provided with chute, and in described chute, coupling has the lens case that can relatively slide, described lens case is slidably to lens location and cover camera lens, and the second side of described casing is provided with sender.The present invention has diverse in function, humanization designing, possesses the advantage such as fingerprint identification function and intellectuality.
Description
Technical field
The present invention relates to porjector technology field, a kind of projector possessing fingerprint identification function.
Background technology
Projector also known as scialyscope, be a kind of can be by the equipment on image or VIDEO PROJECTION to curtain, can be by not
The same computer of interface together, VCD, DVD, BD, game machine, DV etc. are connected and play corresponding video signal.
Along with the continuous progress of porjector technology, projector has been widely used for family, office, school and public place of entertainment
Institute.Simultaneously, it will thus be seen that, the improvement of current projector is mainly from optimizing projector volume size, improving image, video
Projection quality etc. start with, and the property aspect easy to use paid close attention to the most as consumer is had large improvement less.Existing
Projector mainly faces following shortcoming:
1, function singleness: existing projector mostly can only play projecting function, and along with " the Internet+" concept proposition and
The high speed development of information technology.The function that one product is single has been difficult to attract user and consumer.
2, intelligent inadequate: projector is capable of simply, control efficiently is the key factor improving Consumer's Experience, mesh
Front projector is main or realizes playing control by remote controller, plays and controls intelligence not, and nowadays this substantially can not meet
People projector is realized intelligentized demand.Additionally, projector can not be with being intended to running a program function when
Between multiple application programs, own switching, does not have the function that background program processes.
3, heat sinking function is poor: although existing projector has special cooling system to provide heat radiation work when
Hold, but cooling system is the most intelligent, it is impossible to control the running status of fan for practical situation.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of throwing possessing fingerprint identification function
Shadow instrument, this invention has: diverse in function, humanization designing, possess the advantage such as fingerprint identification function and intellectuality.
The technical solution used in the present invention is as follows:
A kind of projector possessing fingerprint identification function, it is characterised in that it includes: casing, the top of described casing is provided with gold
Belong to inductive disks；The electromagnetic inductor for sensing user's gesture behavior it is provided with, for sensing user in described metal inductive disks
The pressing induction apparatus of pressing behavior and for obtaining the photoelectric sensor of user fingerprint image information；It is provided with mirror in described casing
Head, described camera lens stretches out from the first side of casing, and the first side of described casing is provided with chute, and in described chute, coupling has
The lens case that can relatively slide, described lens case is slidably to lens location and cover camera lens；The inside of described casing is near mirror
Head-shield position is additionally provided with in the induction apparatus of sensing lens case position；Second side of described casing is provided with sender；Described machine
The internal position near sender of shell is provided with acoustics unit；Described casing be internally provided with central processing unit；Central processing unit
Signal is connected to electromagnetic inductor, pressing induction apparatus, induction apparatus and acoustics unit respectively.
Use technique scheme, realized the Based Intelligent Control of projector by central processing unit, by metal inductive disks, can
To realize the operation playing or being controlled by the respective regions in pressing metal inductive disks projector of gesture control projector.And
There is acoustics unit in projector, sound can be play.User waves above metal inductive disks, and electromagnetic inductor will sense use
The action of waving at family, or user can press metal inductive disks is provided with pressing induction apparatus respective regions control projector
Running status.And according to the induction apparatus of lens case, it is achieved that the unlatching of projector is controlled by the position of moving lens head-shield
And closedown.
It is additionally provided with groove, when described lens case slides into away from camera lens highest distance position relatively along chute on described lens case
Time, described groove can carry out clamping with slide assembly.
Using technique scheme, the lens case of projector is integrated with the Ontology integration of projector, it is to avoid because of mirror
The separation of head-shield causes lens case to be easily lost.
The inside of described casing is additionally provided with fan, temperature sensor and speed regulator；The bottom of described casing is provided with vent；
Described fan is positioned at vent, and signal is connected to speed regulator；Described speed regulator signal is connected to central processing unit；Described central authorities
Processor signal is connected to temperature sensor；Described speed regulator is built-in with wind-speed gear, and it is built-in with single-chip microcomputer, described monolithic
The signal input part of machine is connected with the signal output part of described central processing unit, the signal output part of described single-chip microcomputer and described wind
The signal input part of fan connects;The minimum described rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is less than when automatically controlling
Described rotation speed of the fan value, be not less than security of system value;The highest rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is the highest
Safe speed of rotation in described fan.
Use technique scheme, it is possible to achieve manually or automatically control the function of projector radiating, at whole device
When automatic heat radiation state, central processing unit controls speed regulator and automatically controls the rotating speed of fan, dispels the heat；At whole device
When manual radiating state, user is by the rotating speed of external mobile control terminal Non-follow control fan；It is also provided with wind simultaneously
The safe speed of rotation of fan, it is to avoid cause the fan to damage because the rotating speed of fan is too high；It also avoid because the rotating speed of fan is too low
Cause device radiation effect poor.
Described casing 1 is internal is provided with fixed-focus system；Described fixed-focus system signal respectively be connected to described camera lens 5 and described in
Central processor；Described fixed-focus system includes: for regulating the electromotion focusing unit of projection lens focal length and focusing control unit；Institute
State electromotion focusing unit and include the focusing component for moving lens, for driving the focusing of described focusing component to drive motor；
The described control unit that focuses includes focusing control processor and focuses Trackpad, described in focus Trackpad and process with described central authorities
Device signal connects；Described central processing unit electrically connects with focusing control processor, focuses control processor and drives motor with focusing
Electrical connection；Described focusing component includes focusing wheel, focusing lever and for limiting the stopping means of camera lens shift motion, by adjusting
The rotation of burnt wheel drives focusing lever to move, and realizes the mobile control to camera lens further by the movement of focusing lever；Described tune
Jiao takes turns transmission clockwise or counterclockwise to drive focusing lever to move up and down, the mobile reality taken turns by focusing further
Now move before and after camera lens, thus realize the regulation of lens focus.
Using technique scheme, when projected picture is adjusted to pre-clear position by electromotion focusing unit, striking focuses tactile
Control plate, focuses control processor and is recorded as first and focuses position；Electromotion focusing unit continues to move to lens location and focuses, when
Being transferred to projected picture the most clearly, when projected picture starts to fog, striking focuses Trackpad again, focuses control and processes
Device is recorded as second and focuses position；Subsequently, camera lens is focused position and first second and focuses between position by electromotion focusing unit
Moving back and forth focusing, when projected picture is transferred to the most clear, striking focuses Trackpad, determines pinpointed focus；Further, described
Focus Trackpad and be arranged in metal inductive disks the position being provided with pressing induction apparatus.
Described projector also includes: mobile control terminal；Described central processing unit also includes: wifi module and/or bluetooth
Module；The described mobile terminal that controls can be attached with central processing unit by wifi module or bluetooth module, it is achieved mobile
Control the signal pairing of terminal and described projector.
Use technique scheme, it is possible to achieve by remote controller or the operation shape of the whole device of mobile phone remote remote control
State.
Described induction apparatus is Hall switch, and described projector also includes that a Magnet, described Hall switch are arranged at described mirror
On embedded side, described Magnet is embedded in described lens case, in described lens case sliding process, when described Hall is opened
When closing the magnetic field intensity detected more than a threshold value, described Hall switch sends a signal to central processing unit, central processing unit control
Make the startup of described projector；When the magnetic field intensity that described Hall switch detects is less than described threshold value, described Hall switch
Sending a signal to central processing unit, central processing unit controls the cut out of described projector.
Described induction apparatus is piezoresistive transducer, in described lens case sliding process, when described piezoresistive transducer is subject to
In lens case sliding process during the effect of power, when resistivity decreases beyond certain threshold value, send a signal to centre
Reason device, central processing unit controls the startup of described projector；Power in described piezoresistive transducer is by lens case sliding process
Effect time, when raising certain threshold value of resistivity, described piezoresistive transducer sends a signal to central processing unit, centre
Reason device controls the cut out of described projector.
Use technique scheme, the present invention use Hall switch or piezoresistive transducer to sense the movement of lens case from
And control startup and the closedown of projector.And Hall switch and the simple in construction of piezoresistive transducer, cost are relatively low.
Described central processing unit signal is connected to be arranged at the fingerprint recognition system of casing internal；Described fingerprint recognition system
Signal is connected to power supply；After fingerprint recognition system detects that the fingerprint recognition of user is passed through, connection central processing unit and power supply
Signal connect, central processing unit could start.
Described photo-sensor signal is connected to described fingerprint recognition system, during described fingerprint recognition system signal is connected to
Central processor；Described fingerprint recognition system includes: for the fingerprint image obtained carries out the pretreatment unit of pretreatment；Described
Pretreatment unit signal is connected to carry out the feature bill in advance of feature extraction for the pretreated fingerprint image of pretreatment unit
Unit；Described feature extraction unit signal is connected to carry out, for the feature extraction result according to feature extraction unit, the coupling mated
Unit.
Pretreatment unit in described fingerprint recognition system carries out the method bag of pretreatment to the information in fingerprint obtained
Include following steps:
Step 1: fingerprint image is carried out image segmentation, extracts the foreground zone of fingerprint image；
Step 2: be standardized processing to fingerprint image by the mean pixel gray scale calculating fingerprint image so that fingerprint image
Gray scale and the unified critical field of setting contrast in.
Step 3: be filtered image strengthening；
Step 4: image is carried out binaryzation and micronization processes.
Described feature extraction unit pretreatment unit is processed after fingerprint image carry out the method for feature extraction include with
Lower step:
Step 1: use Poincare Index algorithm to calculate the characteristic information of finger print core point, be designated as:。
Step 2: when taking the fingerprint minutiae point, is first each pixel in refined imageSet up 8 neighborhoods
Pixel region；WhereinFor pixelAdjacent loops around is around pixel；The value of middle black color dots is set to
1, the value of white point is set to 0.
Step 3: calculate the QUOTE of each pixel according to equation below Value:
;
Step 4: whenTime value is 1, can determine that and detectedPoint is crestal line end points, whenWhen value is 3, then can determine that
Point is crestal line bifurcation；The coordinate of this point is returned after minutiae point being detected, and according to QUOTE Value
Return the type of minutiae point, read the deflection of this point the most again；Thus draw the specific features of a fingerprint minutiae
Finally useOperator characterizes.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, diverse in function: the projector of the present invention is in addition to realizing the function that can project, additionally it is possible to realize automatic heat radiation, hands
Gesture controls, carries the function such as sound equipment and automatic focusing.
2, humanization designing: the lens cap in the present invention becomes one with whole device, it is to avoid because lens cap and
Fuselage separates the lens cap caused and loses.
3, automaticity is high: the camera lens of the present invention focuses and can realize automatically controlling with device radiation.Set by interior
Central processing unit automatically control the focal length of camera lens, the process that will focus is simplified；Simultaneously also by the interior central processing unit set certainly
Autocontrol system dispels the heat, and meanwhile, both ensure that the good of heat dispersion in radiation processes, and had also ensured to avoid the damage of fan
Bad.
4, possess fingerprint identification function: the projector of the present invention possesses fingerprint identification function, fingerprint recognition pass through after ability
Start central processing unit, and then start projector, prevent public projector from being used without authorization by other staff, simultaneously for one
The place that a little security requirements are higher, when projector connects computer, prevents from being obtained confidential information by him.
Accompanying drawing explanation
Fig. 1 is a kind of projector possessing fingerprint identification function of the present invention, the structure under device is in opening
Schematic diagram.
Fig. 2 is a kind of projector possessing fingerprint identification function of the present invention, the structure under device is closed
Schematic diagram.
Fig. 3 is the structural representation of the sender of a kind of projector possessing fingerprint identification function of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention 1 provides a kind of projector possessing fingerprint identification function, projector architecture as shown in Figure 1, Figure 2 and
Shown in Fig. 3:
As shown in Figure 1, Figure 2 and Figure 3, a kind of projector possessing fingerprint identification function, it is characterised in that it includes: casing 1,
The top of described casing 1 is provided with metal inductive disks 2；It is provided with in described metal inductive disks 2 for sensing user's gesture behavior
Electromagnetic inductor and press the pressing induction apparatus of behavior for sensing user；Be provided with camera lens 5 in described casing 1, described camera lens 5 from
First side of casing 1 is stretched out, and the first side of described casing 1 is provided with chute, and in described chute, coupling has and can relatively slide
Lens case 4, described lens case 4 is slidably to camera lens 5 position and cover camera lens 5；The inside of described casing 1 is near lens case position
Put and be additionally provided with in the induction apparatus of sensing lens case 4 position；Second side of described casing 1 is provided with sender 6；Described casing 1
The internal position near sender is provided with acoustics unit；Described casing 1 be internally provided with central processing unit；Central processing unit divides
Level signal is connected to electromagnetic inductor, pressing induction apparatus, induction apparatus and acoustics unit.
Further, described metal inductive disks be provided with pressing induction apparatus region be provided with for realizing gestural control system
Opening and closing and control music unit suspend and play contact panel.
Starting control system, electromagnetic inductor senses the gesture motion above it in real time；
The electromagnetic change signal that electromagnetic inductor is sensed by central processing unit is converted into electric control signal；Perform automatically controlled with described
The order that signal processed is corresponding.
When hands is drawn a circle above electromagnetic inductor clockwise or counterclockwise, then acoustics unit performs volume
Increase or reduce order.When hands is brandished above electromagnetic inductor to the left or to the right, then central processing unit performs song
Switching command.
The inside of described casing 1 is additionally provided with fan, temperature sensor and speed regulator；The bottom of described casing 1 is provided with ventilation
Mouthful；Described fan is positioned at vent, and signal is connected to speed regulator；Described speed regulator signal is connected to central processing unit；Described
Central processing unit signal is connected to temperature sensor；Described speed regulator is built-in with wind-speed gear, and it is built-in with single-chip microcomputer, described
The signal input part of single-chip microcomputer is connected with the signal output part of described central processing unit, the signal output part of described single-chip microcomputer and institute
The signal input part stating fan connects;The minimum described rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is less than control automatically
Described rotation speed of the fan value time processed, is not less than security of system value;The highest rotation speed of the fan value of the built-in wind-speed gear of described speed regulator
The not higher than safe speed of rotation of described fan.
Further, when described temperature sensor fault on described fan, central processing unit is by described rotation speed of the fan
Switch to Non-follow control, and control speed regulator rotation speed of the fan is locked onto the highest or higher rotation speed of the fan gear.
When described projector restarts, described fan control switches to and automatically controls, when user is controlled by mobile
When terminal starts manual regulation program, gear regulation is shown as the gear that current rotation speed of the fan is corresponding automatically.
Described casing 1 is internal is provided with fixed-focus system；Described fixed-focus system signal respectively be connected to described camera lens 5 and described in
Central processor；Described fixed-focus system includes: for regulating the electromotion focusing unit of projection lens focal length and focusing control unit；Institute
State electromotion focusing unit and include the focusing component for moving lens, for driving the focusing of described focusing component to drive motor；
The described control unit that focuses includes focusing control processor and focuses Trackpad, described in focus Trackpad and process with described central authorities
Device signal connects；Described central processing unit electrically connects with focusing control processor, focuses control processor and drives motor with focusing
Electrical connection；Described focusing component includes focusing wheel, focusing lever and for limiting the stopping means of camera lens shift motion, by adjusting
The rotation of burnt wheel drives focusing lever to move, and realizes the mobile control to camera lens further by the movement of focusing lever；Described tune
Jiao takes turns transmission clockwise or counterclockwise to drive focusing lever to move up and down, the mobile reality taken turns by focusing further
Now move before and after camera lens, thus realize the regulation of lens focus.
Further, the middle section of described metal inductive disks is additionally provided with and focuses touch pad area；When device starts, central
When projected picture is adjusted to pre-clear position by central processor control electromotion focusing unit, striking focuses Trackpad, processes through central authorities
After device processes, focus control processor and be recorded as first and focus position；Electromotion focusing unit continues to move to lens location and adjusts
Jiao, when being transferred to projected picture the most clearly, when projected picture starts to fog, striking focuses Trackpad again, focuses control
Processor processed is recorded as second and focuses position；Subsequently, camera lens is focused position and first second and focuses position by electromotion focusing unit
Moving back and forth focusing between putting, when projected picture is transferred to the most clear, striking focuses Trackpad, determines pinpointed focus.
It is provided with acoustics unit in described casing 1；Described acoustics unit is positioned at the sender 6 of the second side, and signal connects
In central processing unit signal.
The bottom of the casing 1 of described projector is provided with damping device, and for absorbing the vibrations of projector equipment, described damping fills
Put and include rubber pyramid foot nail, rubber blanket or soft sound-absorbing pad.
Described projector also includes: mobile control terminal；Described central processing unit also includes: wifi module and/or bluetooth
Module；The described mobile terminal that controls can be attached with central processing unit by wifi module or bluetooth module, it is achieved mobile
Control the signal pairing of terminal and described projector.
Further, acoustics unit sound mouth direction is provided with acoustical cotton or abatvoix, is used for alleviating sound equipment vibrations
Impact on projector equipment.
Described induction apparatus is Hall switch, and described projector also includes that a Magnet, described Hall switch are arranged at described mirror
On 5 embedded sides, described Magnet is embedded in described lens case 4, in described lens case 4 sliding process, when described suddenly
When the magnetic field intensity that your switch detects is more than a threshold value, described Hall switch sends a signal to central processing unit, and central authorities process
Device controls the startup of described projector；When the magnetic field intensity that described Hall switch detects is less than described threshold value, described Hall
Switch sends a signal to central processing unit, and central processing unit controls the cut out of described projector.
Described induction apparatus is piezoresistive transducer, in described lens case 4 sliding process, when described piezoresistive transducer is subject to
In lens case sliding process during the effect of power, when resistivity decreases beyond certain threshold value, send a signal to centre
Reason device, central processing unit controls the startup of described projector；Power in described piezoresistive transducer is by lens case sliding process
Effect time, when raising certain threshold value of resistivity, described piezoresistive transducer sends a signal to central processing unit, centre
Reason device controls the cut out of described projector.
The embodiment of the present invention 2 provides a kind of projector possessing fingerprint identification function, projector architecture as shown in Figure 1, Figure 2 and
Shown in Fig. 3:
A kind of projector possessing fingerprint identification function, it is characterised in that it includes: casing, the top of described casing is provided with gold
Belong to inductive disks；The electromagnetic inductor for sensing user's gesture behavior it is provided with, for sensing user in described metal inductive disks
The pressing induction apparatus of pressing behavior and for obtaining the photoelectric sensor of user fingerprint image information；It is provided with mirror in described casing
Head, described camera lens stretches out from the first side of casing, and the first side of described casing is provided with chute, and in described chute, coupling has
The lens case that can relatively slide, described lens case is slidably to lens location and cover camera lens；The inside of described casing is near mirror
Head-shield position is additionally provided with in the induction apparatus of sensing lens case position；Second side of described casing is provided with sender；Described machine
The internal position near sender of shell is provided with acoustics unit；Described casing be internally provided with central processing unit；Central processing unit
Signal is connected to electromagnetic inductor, pressing induction apparatus, induction apparatus and acoustics unit respectively.
Use technique scheme, realized the Based Intelligent Control of projector by central processing unit, by metal inductive disks, can
To realize the operation playing or being controlled by the respective regions in pressing metal inductive disks projector of gesture control projector.And
There is acoustics unit in projector, sound can be play.User waves above metal inductive disks, and electromagnetic inductor will sense use
The action of waving at family, or user can press metal inductive disks is provided with pressing induction apparatus respective regions control projector
Running status.And according to the induction apparatus of lens case, it is achieved that the unlatching of projector is controlled by the position of moving lens head-shield
And closedown.
It is additionally provided with groove, when described lens case slides into away from camera lens highest distance position relatively along chute on described lens case
Time, described groove can carry out clamping with slide assembly.
Using technique scheme, the lens case of projector is integrated with the Ontology integration of projector, it is to avoid because of mirror
The separation of head-shield causes lens case to be easily lost.
The inside of described casing is additionally provided with fan, temperature sensor and speed regulator；The bottom of described casing is provided with vent；
Described fan is positioned at vent, and signal is connected to speed regulator；Described speed regulator signal is connected to central processing unit；Described central authorities
Processor signal is connected to temperature sensor；Described speed regulator is built-in with wind-speed gear, and it is built-in with single-chip microcomputer, described monolithic
The signal input part of machine is connected with the signal output part of described central processing unit, the signal output part of described single-chip microcomputer and described wind
The signal input part of fan connects;The minimum described rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is less than when automatically controlling
Described rotation speed of the fan value, be not less than security of system value;The highest rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is the highest
Safe speed of rotation in described fan.
Use technique scheme, it is possible to achieve manually or automatically control the function of projector radiating, at whole device
When automatic heat radiation state, central processing unit controls speed regulator and automatically controls the rotating speed of fan, dispels the heat；At whole device
When manual radiating state, user is by the rotating speed of external mobile control terminal Non-follow control fan；It is also provided with wind simultaneously
The safe speed of rotation of fan, it is to avoid cause the fan to damage because the rotating speed of fan is too high；It also avoid because the rotating speed of fan is too low
Cause device radiation effect poor.
Described casing 1 is internal is provided with fixed-focus system；Described fixed-focus system signal respectively be connected to described camera lens 5 and described in
Central processor；Described fixed-focus system includes: for regulating the electromotion focusing unit of projection lens focal length and focusing control unit；Institute
State electromotion focusing unit and include the focusing component for moving lens, for driving the focusing of described focusing component to drive motor；
The described control unit that focuses includes focusing control processor and focuses Trackpad, described in focus Trackpad and process with described central authorities
Device signal connects；Described central processing unit electrically connects with focusing control processor, focuses control processor and drives motor with focusing
Electrical connection；Described focusing component includes focusing wheel, focusing lever and for limiting the stopping means of camera lens shift motion, by adjusting
The rotation of burnt wheel drives focusing lever to move, and realizes the mobile control to camera lens further by the movement of focusing lever；Described tune
Jiao takes turns transmission clockwise or counterclockwise to drive focusing lever to move up and down, the mobile reality taken turns by focusing further
Now move before and after camera lens, thus realize the regulation of lens focus.
Using technique scheme, when projected picture is adjusted to pre-clear position by electromotion focusing unit, striking focuses tactile
Control plate, focuses control processor and is recorded as first and focuses position；Electromotion focusing unit continues to move to lens location and focuses, when
Being transferred to projected picture the most clearly, when projected picture starts to fog, striking focuses Trackpad again, focuses control and processes
Device is recorded as second and focuses position；Subsequently, camera lens is focused position and first second and focuses between position by electromotion focusing unit
Moving back and forth focusing, when projected picture is transferred to the most clear, striking focuses Trackpad, determines pinpointed focus；Further, described
Focus Trackpad and be arranged in metal inductive disks the position being provided with pressing induction apparatus.
Described projector also includes: mobile control terminal；Described central processing unit also includes: wifi module and/or bluetooth
Module；The described mobile terminal that controls can be attached with central processing unit by wifi module or bluetooth module, it is achieved mobile
Control the signal pairing of terminal and described projector.
Use technique scheme, it is possible to achieve by remote controller or the operation shape of the whole device of mobile phone remote remote control
State.
Described induction apparatus is Hall switch, and described projector also includes that a Magnet, described Hall switch are arranged at described mirror
On embedded side, described Magnet is embedded in described lens case, in described lens case sliding process, when described Hall is opened
When closing the magnetic field intensity detected more than a threshold value, described Hall switch sends a signal to central processing unit, central processing unit control
Make the startup of described projector；When the magnetic field intensity that described Hall switch detects is less than described threshold value, described Hall switch
Sending a signal to central processing unit, central processing unit controls the cut out of described projector.
Described induction apparatus is piezoresistive transducer, in described lens case sliding process, when described piezoresistive transducer is subject to
In lens case sliding process during the effect of power, when resistivity decreases beyond certain threshold value, send a signal to centre
Reason device, central processing unit controls the startup of described projector；Power in described piezoresistive transducer is by lens case sliding process
Effect time, when raising certain threshold value of resistivity, described piezoresistive transducer sends a signal to central processing unit, centre
Reason device controls the cut out of described projector.
Use technique scheme, the present invention use Hall switch or piezoresistive transducer to sense the movement of lens case from
And control startup and the closedown of projector.And Hall switch and the simple in construction of piezoresistive transducer, cost are relatively low.
Described central processing unit signal is connected to be arranged at the fingerprint recognition system of casing internal；Described fingerprint recognition system
Signal is connected to power supply；After fingerprint recognition system detects that the fingerprint recognition of user is passed through, connection central processing unit and power supply
Signal connect, central processing unit could start.
Described photo-sensor signal is connected to described fingerprint recognition system, during described fingerprint recognition system signal is connected to
Central processor；Described fingerprint recognition system includes: for the fingerprint image obtained carries out the pretreatment unit of pretreatment；Described
Pretreatment unit signal is connected to carry out the feature bill in advance of feature extraction for the pretreated fingerprint image of pretreatment unit
Unit；Described feature extraction unit signal is connected to carry out, for the feature extraction result according to feature extraction unit, the coupling mated
Unit.
Pretreatment unit in described fingerprint recognition system carries out the method bag of pretreatment to the information in fingerprint obtained
Include following steps:
Step 1: fingerprint image is carried out image segmentation, extracts the foreground zone of fingerprint image；
Step 2: be standardized processing to fingerprint image by the mean pixel gray scale calculating fingerprint image so that fingerprint image
Gray scale and the unified critical field of setting contrast in.
Step 3: be filtered image strengthening；
Step 4: image is carried out binaryzation and micronization processes.
Described feature extraction unit pretreatment unit is processed after fingerprint image carry out the method for feature extraction include with
Lower step:
Step 1: use Poincare Index algorithm to calculate the characteristic information of finger print core point, be designated as:。
Step 2: when taking the fingerprint minutiae point, is first each pixel in refined imageSet up 8 neighborhoods
Pixel region；WhereinFor pixelAdjacent loops around is around pixel；The value of middle black color dots sets
Being 1, the value of white point is set to 0.
Step 3: calculate the QUOTE of each pixel according to equation below Value:
;
Step 4: whenTime value is 1, can determine that and detectedPoint is crestal line end points, whenWhen value is 3, then can determine that
Point is crestal line bifurcation；The coordinate of this point is returned after minutiae point being detected, and according to QUOTE Value
Return the type of minutiae point, read the deflection of this point the most again；Thus draw the specific features of a fingerprint minutiae
Finally useOperator characterizes.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. the projector possessing fingerprint identification function, it is characterised in that it includes: casing (1), the top of described casing (1)
Portion is provided with metal inductive disks (2)；It is provided with the electromagnetic induction for sensing user's gesture behavior on described metal inductive disks (2)
Device, press the pressing induction apparatus and for obtaining the photoelectric sensor of user fingerprint image information of behavior for sensing user；Institute
Being provided with camera lens (5) in stating casing (1), described camera lens (5) stretches out from the first side of casing (1), the first side of described casing (1)
Face is provided with chute, and in described chute, coupling has the lens case (4) that can relatively slide, and described lens case (4) is slidably to camera lens
(5) position cover camera lens (5)；The inside of described casing (1) is additionally provided with near lens case position in sensing lens case (4) position
Induction apparatus；Second side of described casing (1) is provided with sender (6)；The internal position near sender of described casing (1)
It is provided with acoustics unit；Described casing (1) be internally provided with central processing unit；Central processing unit signal respectively is connected to electromagnetism sense
Answer device, pressing induction apparatus, induction apparatus and acoustics unit.
Possesses the projector of fingerprint identification function the most as claimed in claim 1, it is characterised in that described lens case (4) is upper also
Being provided with groove (9), when described lens case slides into away from camera lens highest distance position relatively along chute, described groove (9) can be with cunning
Bowl assembly (7) carries out clamping.
3. require the projector possessing fingerprint identification function as described in 2 such as power, it is characterised in that the inside of described casing (1) is also
It is provided with fan, temperature sensor and speed regulator；The bottom of described casing (1) is provided with vent；Described fan is positioned at vent,
Signal is connected to speed regulator；Described speed regulator signal is connected to central processing unit；Described central processing unit signal is connected to temperature
Sensor；Described speed regulator is built-in with wind-speed gear, and it is built-in with single-chip microcomputer, and the signal input part of described single-chip microcomputer is with described
The signal output part of central processing unit connects, and the signal output part of described single-chip microcomputer is connected with the signal input part of described fan;
The minimum described rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is less than described rotation speed of the fan value when automatically controlling, the lowest
In security of system value;The highest rotation speed of the fan value of the built-in wind-speed gear of described speed regulator is not higher than the safe speed of rotation of described fan.
Possesses the projector of fingerprint identification function the most as claimed in claim 3, it is characterised in that described casing (1) is internal to be set
There is fixed-focus system；Described fixed-focus system signal respectively is connected to described camera lens (5) and described central processing unit；Described fixed-focus system
Including: for regulating the electromotion focusing unit of projection lens focal length and focusing control unit；Described electromotion focusing unit includes using
In the focusing component of moving lens, for driving the focusing of described focusing component to drive motor；The described control unit that focuses includes
Focus control processor and focus Trackpad, described in focus Trackpad and be connected with described central processing unit signal；Described central authorities
Processor electrically connects with focusing control processor, focuses control processor and drives motor to electrically connect with focusing；Described focusing component
Including focusing wheel, focusing lever and for limiting the stopping means of camera lens shift motion, the rotation taken turns by focusing drives tune
Burnt bar moves, and realizes the mobile control to camera lens further by the movement of focusing lever；Described focusing wheel along clockwise direction or
Counterclockwise transmission drives focusing lever to move up and down, and the mobile realization taken turns by focusing further is moved before and after camera lens
Dynamic, thus realize the regulation of lens focus.
Possess the projector of fingerprint identification function the most as claimed in claim 4, it is characterised in that described projector also includes:
Mobile control terminal；Described central processing unit also includes: wifi module and/or bluetooth module；Described mobile control terminal can
Carried out even with central processing unit by wifi module or bluetooth module
Connect, it is achieved the mobile signal pairing controlling terminal and described projector；Described induction apparatus is Hall switch, described projector
Also including that a Magnet, described Hall switch are arranged on the side that described camera lens (5) is embedded, described Magnet is embedded at described camera lens
In cover (4), in described lens case (4) sliding process, when the magnetic field intensity that described Hall switch detects is more than a threshold value,
Described Hall switch sends a signal to central processing unit, and central processing unit controls the startup of described projector；When described Hall is opened
When closing the magnetic field intensity detected less than described threshold value, described Hall switch sends a signal to central processing unit, central processing unit
Control the closedown of described projector.
6. projector as claimed in claim 5, it is characterised in that described induction apparatus is piezoresistive transducer, at described camera lens
In cover (4) sliding process, when during described piezoresistive transducer is by lens case sliding process, power is acted on, resistivity drops
Low when exceeding certain threshold value, send a signal to central processing unit, central processing unit controls the startup of described projector；When described
When piezoresistive transducer is acted on by power in lens case sliding process, when raising certain threshold value of resistivity, described pressure drag
Formula sensor sends a signal to central processing unit, and central processing unit controls the cut out of described projector.
Possesses the projector of fingerprint identification function the most as claimed in claim 6, it is characterised in that described central processing unit signal
It is connected to be arranged at the fingerprint recognition system that casing (1) is internal；Described fingerprint recognition system signal is connected to power supply；When fingerprint is known
After other system detects that the fingerprint recognition of user is passed through, the signal of connection central processing unit and power supply connects, and central processing unit is
Can start.
Possesses the projector of fingerprint identification function the most as claimed in claim 7, it is characterised in that described photo-sensor signal
Being connected to described fingerprint recognition system, described fingerprint recognition system signal is connected to central processing unit；Described fingerprint recognition system
Including: for the fingerprint image obtained being carried out the pretreatment unit of pretreatment；Described pretreatment unit signal be connected to for
The pretreated fingerprint image of pretreatment unit carries out the feature extraction unit of feature extraction；Described feature extraction unit signal is even
It is connected to carry out, for the feature extraction result according to feature extraction unit, the matching unit that mates.
Possesses the projector of fingerprint identification function the most as claimed in claim 8, it is characterised in that in described fingerprint recognition system
Pretreatment unit the information in fingerprint obtained carried out the method for pretreatment comprise the following steps:
Step 1: fingerprint image is carried out image segmentation, extracts the foreground zone of fingerprint image；
Step 2: be standardized processing to fingerprint image by the mean pixel gray scale calculating fingerprint image so that fingerprint image
Gray scale and the unified critical field of setting contrast in；
Step 3: be filtered image strengthening；
Step 4: image is carried out binaryzation and micronization processes.
Possesses the projector of fingerprint identification function the most as claimed in claim 9, it is characterised in that described feature extraction unit
Fingerprint image after processing pretreatment unit carries out the method for feature extraction and comprises the following steps:
Step 1: use Poincare Index algorithm to calculate the characteristic information of finger print core point, be designated as:；
Step 2: when taking the fingerprint minutiae point, is first each pixel in refined imageSet up 8 neighborhood territory pixels
District；WhereinFor pixelAdjacent loops around is around pixel；The value of middle black color dots is set to 1, white
The value of point is set to 0；
Step 3: calculate each pixel according to equation belowValue:
;
Step 4: whenTime value is 1, can determine that and detectedPoint is crestal line end points, whenWhen value is 3, then can determine thatPoint is ridge
Line bifurcation；The coordinate of this point is returned after minutiae point being detected, and according toValue return minutiae point type, so
After read the deflection of this point again；Thus show that the specific features of a fingerprint minutiae is finally used
Operator characterizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837382.2A CN106200247A (en) | 2016-09-21 | 2016-09-21 | A kind of projector possessing fingerprint identification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837382.2A CN106200247A (en) | 2016-09-21 | 2016-09-21 | A kind of projector possessing fingerprint identification function |
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| CN106200247A true CN106200247A (en) | 2016-12-07 |
Family
ID=58067900
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|---|---|---|---|
| CN201610837382.2A Pending CN106200247A (en) | 2016-09-21 | 2016-09-21 | A kind of projector possessing fingerprint identification function |
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| CN (1) | CN106200247A (en) |
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Application publication date: 20161207 |