CN108900820A - A kind of control method and device of projector - Google Patents
A kind of control method and device of projector Download PDFInfo
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- CN108900820A CN108900820A CN201810455662.6A CN201810455662A CN108900820A CN 108900820 A CN108900820 A CN 108900820A CN 201810455662 A CN201810455662 A CN 201810455662A CN 108900820 A CN108900820 A CN 108900820A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of control methods of projector, including：The projection lamp is detected to the linear distance between screen, the screen includes any vertical white metope；Detect the tilt angle between the projection lamp and the screen；According to the linear distance and the tilt angle detected, projection size is determined from pre-set default size library；According to determining projection size selection, clearly image is projected on the screen, and the image includes projection interface, operation interface and project content；Obtain the gesture information of the collected control projector of the video camera；According to the gesture information detected, operation scheme corresponding with the gesture information is determined from pre-set gesture information library；According to the determining operation scheme, the operation scheme for controlling the projector is executed.According to the technical solution of the present invention, projector can be controlled by gesture, effectively increases the usage experience of user.
Description
Technical field
The present invention relates to the technical fields in terms of generation information projector, in particular to a kind of control of projector
Method processed and a kind of control device of projector.
Background technique
Projector is a kind of equipment that can be projected image or video on projection screen, projects to projection screen
On image or several times are presented in the case where keeping clarity for video or decades of times amplifies, facilitate people to watch,
It is used with the development of science and technology, projector is more and more by people.Projector can easily by image projection to wall paper,
Curtain etc. is watched for everybody, and people are more and more applied to projector.But in the prior art, most optical projection system packet
Projector and projection screen are included, when mobile projector instrument or projection screen, the distance between projector and projection screen become
When change, projects to the projected picture of projection screen and be easy to appear fuzzy sense, need manually again to focus to projector, to change
Kind result of broadcast, and in control process, it usually needs it is controlled either manually or by the key on projector or using remote controler,
The experience of interactivity is lower.
Summary of the invention
The present invention is based at least one above-mentioned technical problem, proposes a kind of new projector control program, structure
Simply, while realizing no curtain and clearly project, image to be projected can be directly controlled according to the gesture information of user
It launches, effectively increases the usage experience of user.
In view of this, the projector includes projector sheet the invention proposes a kind of control method of new projector
Body is provided with projection lamp on the projector main body, and the front end two sides of the projector main body are provided with range sensor, institute
The front for stating projector main body is provided with turning machine and video camera, and the projection lamp is arranged in the turning machine, the projection
Instrument is internally provided with DSP embedded processor, and the control method of the projector includes：Detect the projection lamp to screen it
Between linear distance, the screen includes any vertical white metope；Detect the inclination between the projection lamp and the screen
Angle；According to the linear distance and the tilt angle detected, projection is determined from pre-set default size library
Size；According to determining projection size selection, clearly image is projected on the screen, and the image includes throwing
Film-world face, operation interface and project content；Obtain the gesture information of the collected control projector of the video camera；According to
The gesture information detected determines operation side corresponding with the gesture information from pre-set gesture information library
Case；According to the determining operation scheme, the operation scheme for controlling the projector is executed.
In the technical scheme, by according to the linear distance and tilt angle between the projection lamp and screen that detect,
Distance in pre-set default size library is analyzed, relatively reasonable preset projection can be filtered out rapidly automatically
Size；After clearly being projected on the screen according to projection size, video camera acquires the gesture information of user in real time, then passes through
Corresponding operation scheme is selected in pre-set gesture information library, is allowed users to without the help of setting in projector
On key or other remote controlers, just realize operation to projector, effectively increase the usage experience of user.
In the above-mentioned technical solutions, it is preferable that described to detect tilt angle between the projection lamp and the screen
Specific steps include：The slant range between two range sensors and the screen is detected respectively；It obtains described two
Fixed range between the range sensor；According to the slant range and the fixed range got, institute is calculated
State the tilt angle between projection lamp and the screen.
In the above-mentioned technical solutions, it is preferable that the calculation formula of the tilt angle between the projection lamp and the screen
For：Tan θ=| S1-S2 |/S3, wherein tilt angle of the θ between the projection lamp and the screen, the S1 and S2
Slant range respectively between two range sensors and the screen, the S3 are described two Distance-sensings
Fixed range between device.
In the technical scheme, pass through the distance between two range sensors of detection to screen and two range sensors
The distance between, Pythagorean theorem and the law of tangents are then utilized, the tilt angle between projection lamp and screen, energy are quickly calculated
Enough effectively automatic projectors that solves project trapezoidal, the unsharp situation of appearance due to caused by projection lamp angle tilt.
In the above-mentioned technical solutions, it is preferable that in the default size library include the projection size and with the projection
The linear distance and the tilt angle of the corresponding storage of size.
In the above-mentioned technical solutions, it is preferable that it is described according to determining projection size selection clearly image in institute
Stating the step of being projected on screen includes：According to the determining projection size, once projected on the screen；Point
Whether clear analyse the collected drop shadow effect of the video camera；When confirming that the drop shadow effect is clear, the projection lamp is maintained
It is clearly projected in the drop shadow spread；When confirming that the drop shadow effect is unintelligible, turning machine adjustment institute is controlled
The projection angle of projection lamp is stated to the drop shadow effect clearly angle, is clearly projected.
In the technical scheme, by determining projection size, drop shadow spread is selected to implement primary projection on the screen, it is convenient
Video camera differentiates drop shadow effect；It is mobile by controlling turning machine according to the detection to drop shadow effect, to realize
Automatic focusing and mobile projection scope, ensure that the fine definition of drop shadow effect, so that projection is more intelligent.
In the above-mentioned technical solutions, it is preferable that obtain first gesture feature of the video camera in the operation interface；
The video camera is analyzed in the collected second gesture feature in projection interface；It is special according to the collected second gesture
Sign, the Real-time Reconstruction gesture image in the virtual three-dimensional space in the DSP embedded processor；It is special according to the first gesture
It seeks peace gesture information described in the gesture video generation.
In the technical scheme, pass through the directly collected first gesture feature of analysis video camera and second gesture feature
A gesture image is established in the virtual three-dimensional space in DSP embedded processor so that for gesture information identification more
It is accurate to add；By the way that gesture image and first gesture feature are generated gesture information, gesture information is similar to the push button signalling of mouse,
Realize gesture operation.
In the above-mentioned technical solutions, it is preferable that the gesture information library includes：Simple gesture control projection interface amplification with
Reduce, project content is amplified, is reduced, page turning, writing, F.F., rewind and label draw a circle.
In the above-mentioned technical solutions, it is preferable that the determining and gesture from pre-set gesture information library is believed
The corresponding operation scheme of manner of breathing includes：When the gesture information only is included in the first gesture feature of the operation interface
When, it determines the projection interface amplification according to the first gesture character control, reduce；When the gesture information only is included in institute
The second gesture feature at projection interface is stated, the second gesture feature is gesture information of two fingers from kneading to slide apart
When, determine the operation scheme for amplification project content；The second gesture feature refers to for two from the hand for being separated into kneading sliding
When gesture information, determine that the operation scheme is reduced projection content；The second gesture feature is single gesture for being directed toward right sliding
When information, determine that the operation scheme is page turning to the right；When the second gesture feature is the left sliding of single direction, the behaviour is determined
Making scheme is page turning to the left；The second gesture feature is when singly referring to the gesture information of upward sliding, to determine the operation scheme
To move up interface；When the second gesture feature is single gesture information for being directed toward lower slider, determine that the operation scheme is
Move down interface；When the second gesture feature is the gesture information that two fingers are slided to the right, determine the operation scheme for control
Video fast forward processed；When the second gesture feature is the gesture information that two fingers are slided to the left, determine the operation scheme for control
Video rewind；The second gesture feature is to determine that the operation scheme is to throwing when singly referring to the gesture information of broken line sliding
Shadow content is marked, writes and storage.
In the technical scheme, gesture information and actual operation scheme associated storage, make it possible to quickly through identification
Gesture information realizes actual operation scheme, and user can control projector according to gesture.
According to the second aspect of the invention, a kind of control device of projector is proposed, the projector includes projector
Ontology is provided with projection lamp on the projector main body, and the front end two sides of the projector main body are provided with range sensor,
The front of the projector main body is provided with turning machine and video camera, and the projection lamp is arranged in the turning machine, the throwing
Shadow instrument is internally provided with DSP embedded processor, and the control device of the projector includes：First detection unit, for examining
The projection lamp is surveyed to the linear distance between screen, the screen includes any vertical white metope；Second detection unit is used
Tilt angle between the detection projection lamp and the screen；First confirmation unit, for described straight according to what is detected
Linear distance and the tilt angle determine projection size from pre-set default size library；First execution unit is used for root
According to determining projection size selection, clearly image is projected on the screen, the image include projection interface,
Operation interface and project content；First acquisition unit, for obtaining the hand of the collected control projector of the video camera
Gesture information；Second confirmation unit, for being determined from pre-set gesture information library according to the gesture information detected
Operation scheme corresponding with the gesture information；Second execution unit, for executing control according to the determining operation scheme
Make the operation scheme of the projector.
In the technical scheme, in the technical scheme, first detection unit, second detection unit, the first confirmation unit
And first execution unit pass through according to the linear distance and tilt angle between the projection lamp and screen that detect, to presetting
Default size library in distance analyzed, relatively reasonable preset projection size can be filtered out rapidly automatically；First
After acquiring unit, the second confirmation unit and the second execution unit are clearly projected on the screen according to projection size, video camera
The gesture information of acquisition user in real time, then by selecting corresponding operation scheme in pre-set gesture information library,
It allows users to just realize the operation to projector without the help of the key or other remote controlers being arranged on projector, have
Effect improves the usage experience of user.
In the above-mentioned technical solutions, it is preferable that the second detection unit includes：Third detection module, for examining respectively
Survey the slant range between two range sensors and the screen；Second obtains module, for obtaining described two institutes
State the fixed range between range sensor；Computing module, for according to the slant range that gets and the fixation away from
From calculating the tilt angle between the projection lamp and the screen.
In the technical scheme, third detection module, second obtain module by detecting two range sensors to screen
The distance between the distance between two range sensors, the second acquisition module calculates the inclination between projection lamp and screen
Angle can effectively be solved projector automatically and be projected trapezoidal, the unsharp situation of appearance due to caused by projection lamp angle tilt.
By above technical scheme, the clarity of projected image can be automatically adjusted, caused by final result projector trapezoidal not
Clear situation, so that user can also determine the behaviour of control projector by obtaining the gesture information for controlling projector
Make scheme, executes operation scheme, effectively increase the usage experience of user.
Detailed description of the invention
Fig. 1 shows the flow diagram of the control method of the projector of embodiment according to the present invention；
Fig. 2 shows the structural schematic diagrams of the control device of the projector of embodiment according to the present invention；
Fig. 3 shows the structural schematic diagram of the projector of embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the flow diagram of the control method of the projector of embodiment according to the present invention.
As shown in Figure 1, the control method of the projector of the embodiment of the present invention, including：
Step 101, the projection lamp is detected to the linear distance between screen, and the screen includes any vertical white metope；
Step 102, the tilt angle between the projection lamp and the screen is detected；
Step 103, according to the linear distance and the tilt angle detected, from pre-set default size library really
Determine projection size；
Step 104, according to determining projection size selection, clearly image is projected on the screen, the image
Including projection interface, operation interface and project content；
Step 105, the gesture information of the collected control projector of the video camera is obtained；
Step 106, determining from pre-set gesture information library to believe with the gesture according to the gesture information detected
The corresponding operation scheme of manner of breathing；
Step 107, according to the determining operation scheme, the operation scheme for controlling the projector is executed.
In the technical scheme, by according to the linear distance and tilt angle between the projection lamp and screen that detect,
Distance in pre-set default size library is analyzed, relatively reasonable preset projection can be filtered out rapidly automatically
Size；After clearly being projected on the screen according to projection size, video camera acquires the gesture information of user in real time, then passes through
Corresponding operation scheme is selected in pre-set gesture information library, wherein operation interface can be set at projection interface
The lower left corner, project content setting in projection interface, allow users to without the help of the key being arranged on projector or
Other remote controlers just realize the operation to projector, effectively increase the usage experience of user.
In the above-mentioned technical solutions, it is preferable that described to detect tilt angle between the projection lamp and the screen
Specific steps include：The slant range between two range sensors and the screen is detected respectively；It obtains described two
Fixed range between the range sensor；According to the slant range and the fixed range got, institute is calculated
State the tilt angle between projection lamp and the screen.
In the above-mentioned technical solutions, it is preferable that the calculation formula of the tilt angle between the projection lamp and the screen
For：Tan θ=| S1-S2 |/S3, wherein tilt angle of the θ between the projection lamp and the screen, the S1 and S2
Slant range respectively between two range sensors and the screen, the S3 are described two Distance-sensings
Fixed range between device.
In the technical scheme, pass through the distance between two range sensors of detection to screen and two range sensors
The distance between, Pythagorean theorem and the law of tangents are then utilized, the tilt angle between projection lamp and screen, energy are quickly calculated
Enough effectively automatic projectors that solves project trapezoidal, the unsharp situation of appearance due to caused by projection lamp angle tilt, wherein also
Can use formula sin θ=（S1-S2）/√（S1-S2）2+S32Or cos θ=S3/ √（S1-S2）2+S32Or cot θ=S3/
（S1-S2）Equal Pythagorean theorem, sine, the cosine law, cotangent theorem calculate the inclination angle between projection lamp and screen
Degree.
In the above-mentioned technical solutions, it is preferable that in the default size library include the projection size and with the projection
The linear distance and the tilt angle of the corresponding storage of size.
In the above-mentioned technical solutions, it is preferable that it is described according to determining projection size selection clearly image in institute
Stating the step of being projected on screen includes：According to the determining projection size, once projected on the screen；Point
Whether clear analyse the collected drop shadow effect of the video camera；When confirming that the drop shadow effect is clear, the projection lamp is maintained
It is clearly projected in the drop shadow spread；When confirming that the drop shadow effect is unintelligible, turning machine adjustment institute is controlled
The projection angle of projection lamp is stated to the drop shadow effect clearly angle, is clearly projected.
In the technical scheme, by determining projection size, drop shadow spread is selected to implement primary projection on the screen, it is convenient
Video camera differentiates drop shadow effect；It is mobile by controlling turning machine according to the detection to drop shadow effect, to realize
Automatic focusing and mobile projection scope, ensure that the fine definition of drop shadow effect, so that projection is more intelligent.
In the above-mentioned technical solutions, it is preferable that obtain first gesture feature of the video camera in the operation interface；
The video camera is analyzed in the collected second gesture feature in projection interface；It is special according to the collected second gesture
Sign, the Real-time Reconstruction gesture image in the virtual three-dimensional space in the DSP embedded processor；It is special according to the first gesture
It seeks peace gesture information described in the gesture video generation.
In the technical scheme, pass through the directly collected first gesture feature of analysis video camera and second gesture feature
A gesture image is established in the virtual three-dimensional space in DSP embedded processor so that for gesture information identification more
It is accurate to add；By the way that gesture image and first gesture feature are generated gesture information, gesture information is similar to the push button signalling of mouse,
Realize gesture operation.
In the above-mentioned technical solutions, it is preferable that the gesture information library includes：Simple gesture control projection interface amplification with
Reduce, project content is amplified, is reduced, page turning, writing, F.F., rewind and label draw a circle.
In the above-mentioned technical solutions, it is preferable that when the gesture information only is included in described the first of the operation interface
When gesture feature, determines the projection interface amplification according to the first gesture character control, reduces；When the gesture information
Including the second gesture feature at the projection interface, the second gesture feature is two fingers from mediating slide apart
When gesture information, determine the operation scheme for amplification project content；The second gesture feature be two refer to from be separated into mediate
When the gesture information of sliding, determine that the operation scheme is reduced projection content；The second gesture feature is single right cunning of direction
When dynamic gesture information, determine that the operation scheme is page turning to the right；When the second gesture feature is the left sliding of single direction, really
The fixed operation scheme is page turning to the left；The second gesture feature is when singly referring to the gesture information of upward sliding, described in determination
Operation scheme is to move up interface；When the second gesture feature is single gesture information for being directed toward lower slider, the behaviour is determined
Making scheme is to move down interface；When the second gesture feature is the gesture information that two fingers are slided to the right, the operation is determined
Scheme is control video fast forward；When the second gesture feature is the gesture information that two fingers are slided to the left, the operation side is determined
Case is control video rewind；The second gesture feature is when singly referring to the gesture information of broken line sliding, to determine the operation side
Case is to be marked, write and storage to project content.
In the technical scheme, gesture information and actual operation scheme associated storage make it possible to by identifying gesture
Information realizes actual operation scheme, and user can control projector according to gesture.
Fig. 2 shows the structural schematic diagrams of the control device 200 of the projector of embodiment according to the present invention.
As shown in Fig. 2, the control device 200 of the projector of embodiment according to the present invention, including：First detection unit
201, for detecting the projection lamp to the linear distance between screen, the screen includes any vertical white metope；Second
Detection unit 202, for detecting the tilt angle between the projection lamp and the screen；First confirmation unit 203 is used for root
According to the linear distance and the tilt angle detected, projection size is determined from pre-set default size library；The
One execution unit 204, for according to determining projection size selection, clearly image to be projected on the screen, institute
Stating image includes projection interface, operation interface and project content；First acquisition unit 205, for obtaining the video camera acquisition
The gesture information of the control projector arrived；Second confirmation unit 206, for according to the gesture information that detects, from
Operation scheme corresponding with the gesture information is determined in pre-set gesture information library；Second execution unit 207, is used for
According to the determining operation scheme, the operation scheme for controlling the projector is executed.
In the technical scheme, in the technical scheme, first detection unit 201, second detection unit 202, first are true
Recognize unit 203 and the first execution unit 204 pass through according between the projection lamp and screen detected linear distance and inclination angle
Degree, analyzes the distance in pre-set default size library, can filter out rapidly automatically relatively reasonable preset
Projection size；First acquisition unit 205, the second confirmation unit 206 and the second execution unit 207 according to projection size on the screen
It carries out after clearly projecting, video camera acquires the gesture information of user in real time, then by pre-set gesture information library
Corresponding operation scheme is selected, is allowed users to without the help of the key or other remote controlers being arranged on projector, just
It realizes the operation to projector, effectively increases the usage experience of user.
In the above-mentioned technical solutions, it is preferable that the second detection unit 202 includes：Third detection module, for distinguishing
Detect the slant range between two range sensors and the screen；Second obtains module, described two for obtaining
Fixed range between the range sensor；Computing module, for according to the slant range and the fixation got
Distance calculates the tilt angle between the projection lamp and the screen.
In the technical scheme, third detection module, second obtain module by detecting two range sensors to screen
The distance between the distance between two range sensors, the second acquisition module calculates the inclination between projection lamp and screen
Angle can effectively be solved projector automatically and be projected trapezoidal, the unsharp situation of appearance due to caused by projection lamp angle tilt.
Fig. 3 shows the structural schematic diagram of the projector of embodiment according to the present invention.
As shown in figure 3, a kind of projector of embodiment according to the present invention includes projector main body 301, the projector
Projection lamp 302 is provided on ontology 301, the front end two sides of the projector main body 301 are provided with range sensor 303, institute
The front for stating projector main body 301 is provided with turning machine（It is not shown in the figure）With video camera 304, the setting of projection lamp 302 exists
In the turning machine, the projector is internally provided with DSP embedded processor（It is not shown in the figure）.
In the technical scheme, the front end that projector main body 301 is arranged in range sensor 303 can effectively measure throwing
The actual range of shadow lamp 302 and screen, convenient for guaranteeing the validity of range measurement；Projection lamp 302 is being thrown by turning machine setting
On shadow instrument ontology 301, wherein driver can use two-dimension high-precision steering engine rotating mechanism, and projection lamp 302 is based on
Turning machine changes the crevice projection angle of itself, is always ensured that project content is in suitable brightness and fine definition, without repeatedly
Adjust the angle of projector main body 301；Projection lamp 302 can use the LED projection machine of high brightness, projected picture color saturation
It is higher, super large-scale projection can be realized in short distance, and can guarantee in, satisfaction clear compared with the content projected at a distance
User scales the demand of projected picture, without in addition configuring large-scale electronic picture frame curtain；Video camera 304 can use panorama
Camera can perceive out practical drop shadow effect, convenient for completing automatic adjustment clarity and brightness, additionally it is possible to perceive projection lamp
Whole gesture motions in 302 maximum magnitudes.
In actual application process, projector is placed on screen front by user, and projector is started to work, and passes through setting
Range sensor in front end obtains the linear distance and tilt angle of projection lamp and screen, then the suitable projection ruler of selection
Very little show on the screen clearly projects, and at the same time, when video camera detects that projection is unintelligible, can control turning machine certainly
Dynamic focusing and mobile projector range, to maintain clear projection；When user needs to operate project content, in camera shooting function
Preset gesture motion is carried out in the range of enough observing, so that DSP embedded processor can establish model, realizes gesture letter
The acquisition of breath achievees the purpose that user passes through gesture operation.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, and technical solution of the present invention proposes a kind of new
The control method of projector and a kind of control device of projector make while realizing projector automatic adjustment clearly projection
The operation scheme of control projector can be determined, execute operation by obtaining the gesture information for controlling projector by obtaining user
Scheme allows to control projector according to gesture, effectively increases the usage experience of user.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method of projector, which is characterized in that the projector includes projector main body, the projector main body
On be provided with projection lamp, the front end two sides of the projector main body are provided with range sensor, and the projector main body is just
Face is provided with turning machine and video camera, and the projection lamp is arranged in the turning machine, and being internally provided with for the projector is embedding
Enter formula dsp processor, the control method of the projector includes：
The projection lamp is detected to the linear distance between screen, the screen includes any vertical white metope；
Detect the tilt angle between the projection lamp and the screen；
According to the linear distance and the tilt angle detected, projection ruler is determined from pre-set default size library
It is very little；
According to determining projection size selection, clearly image is projected on the screen, and the image includes projection
Interface, operation interface and project content；
Obtain the gesture information of the collected control projector of the video camera；
According to the gesture information detected, determination is corresponding with the gesture information from pre-set gesture information library
Operation scheme；
According to the determining operation scheme, the operation scheme for controlling the projector is executed.
2. the control method of projector according to claim 1, which is characterized in that the detection projection lamp with it is described
The specific steps of tilt angle between screen include：
The slant range between two range sensors and the screen is detected respectively；
Obtain the fixed range between described two range sensors；
According to the slant range and the fixed range got, inclining between the projection lamp and the screen is calculated
Rake angle.
3. the control method of projector according to claim 2, which is characterized in that the projection lamp and the screen it
Between the calculation formula of tilt angle be：
tanθ=|S1-S2|/S3
Wherein, tilt angle of the θ between the projection lamp and the screen, the S1 and S2 be respectively described in two away from
From the slant range between sensor and the screen, fixation of the S3 between described two range sensors away from
From.
4. the control method of projector according to claim 1, which is characterized in that include described in the default size library
Projection size and the linear distance and the tilt angle of storage corresponding with the projection size.
5. the control method of projector according to claim 1, which is characterized in that described according to the determining projection ruler
Very little selection the step of clearly image is projected on the screen includes：
According to the determining projection size, once projected on the screen；
Whether clear analyze the collected drop shadow effect of the video camera；
When confirming that the drop shadow effect is clear, the projection lamp is maintained clearly to be projected in the drop shadow spread；
When confirming that the drop shadow effect is unintelligible, controls the turning machine and adjust the projection angle of the projection lamp to the throwing
Shadow effect clearly angle, is clearly projected.
6. the control method of projector according to claim 1, which is characterized in that the acquisition video camera collects
The control projector gesture information the step of include：
Obtain first gesture feature of the video camera in the operation interface；
The video camera is analyzed in the collected second gesture feature in projection interface；
According to the collected second gesture feature, in the virtual three-dimensional space in the DSP embedded processor in real time
Reconstruct gesture image；
According to gesture information described in the first gesture feature and the gesture video generation.
7. the control method of projector according to claim 1, which is characterized in that the gesture information library includes：Simply
Gesture control projection interface amplification with reduce, project content amplified, is reduced, page turning, writing, F.F., rewind and label
It draws a circle.
8. the control method of projector according to claim 6, which is characterized in that described from pre-set gesture information
Determine that operation scheme corresponding with the gesture information includes in library：
When the gesture information only is included in the first gesture feature of the operation interface, determine according to described first-hand
Projection interface amplification described in gesture character control is reduced；
When the gesture information only is included in the second gesture feature at the projection interface, the second gesture feature is two
When referring to from mediating the gesture information of slide apart, determine the operation scheme for amplification project content；The second gesture is special
It levies and refers to for two from when being separated into the gesture information for mediating sliding, determine the operation scheme for reduced projection content；Described second
When gesture feature is single gesture information for being directed toward right sliding, determine that the operation scheme is page turning to the right；The second gesture is special
When sign is directed toward left sliding for list, determine that the operation scheme is page turning to the left；The second gesture feature is singly to refer to upward sliding
Gesture information when, determine the operation scheme be move up interface；The second gesture feature is single direction lower slider
When gesture information, determine that the operation scheme is to move down interface；The second gesture feature is the hand that two fingers are slided to the right
When gesture information, determine the operation scheme for control video fast forward；The second gesture feature is the gesture that two fingers are slided to the left
When information, determine the operation scheme for control video rewind；The second gesture feature is singly to refer to the gesture of broken line sliding
When information, determine that the operation scheme is to be marked, write and storage to project content.
9. a kind of control device of projector, which is characterized in that the projector includes projector main body, the projector main body
On be provided with projection lamp, the front end two sides of the projector main body are provided with range sensor, and the projector main body is just
Face is provided with turning machine and video camera, and the projection lamp is arranged in the turning machine, and being internally provided with for the projector is embedding
Enter formula dsp processor, the control device of the projector includes：
First detection unit, for detecting the projection lamp to the linear distance between screen, the screen includes any vertical
White metope；
Second detection unit, for detecting the tilt angle between the projection lamp and the screen；
First confirmation unit, for the linear distance and the tilt angle that basis detects, from pre-set default
Projection size is determined in size library；
First execution unit, for clearly image to be thrown on the screen according to determining projection size selection
Shadow, the image include projection interface, operation interface and project content；
First acquisition unit, for obtaining the gesture information of the collected control projector of the video camera；
Second confirmation unit, for according to the gesture information that detects, determined from pre-set gesture information library with
The corresponding operation scheme of the gesture information；
Second execution unit, for executing the operation scheme for controlling the projector according to the determining operation scheme.
10. the control device of projector according to claim 9, which is characterized in that the second detection unit includes：
Third detection module, for detecting the slant range between two range sensors and the screen respectively；
Second obtains module, for obtaining the fixed range between described two range sensors；
Computing module, for calculating the projection lamp and institute according to the slant range and the fixed range got
State the tilt angle between screen.
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