CN107908061A - Set-top box and its projecting method - Google Patents
Set-top box and its projecting method Download PDFInfo
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- CN107908061A CN107908061A CN201711161751.1A CN201711161751A CN107908061A CN 107908061 A CN107908061 A CN 107908061A CN 201711161751 A CN201711161751 A CN 201711161751A CN 107908061 A CN107908061 A CN 107908061A
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- projection
- top box
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- size
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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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
-
- 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]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The present invention provides a kind of set-top box and its projecting method, the set-top box is built-in with projection module, and the projection lens of the projection module is arranged on the front panel of the set-top box, the described method includes：Receive the projector distance between the projection lens and projection screen of rangefinder collection；The target size of function calculating projected picture is calculated according to the projector distance and default projection size；The target size is sent to the projection module, so that the picture dimension that the projection module projects the projected picture obtained on the projection screen is equal to the target size.The embodiment of the present invention can make the size that video is presented user is had preferable experience effect without being bound by the screen size of television set.
Description
Technical field
The present invention relates to set-top box technique field, more particularly, to a kind of set-top box and its projecting method.
Background technology
With the continuous popularization of DTV, set-top box has become one of household electrical appliance indispensable in family.
Traditional set-top box needs to be used cooperatively with television set, is in by television set by vision signal and audio signal
It is existing, it is not only of high cost, and also the size of video presentation is limited by the screen size of television set, influences the visual experience effect of user
Fruit.
The content of the invention
In view of this, it is an object of the invention to provide set-top box and its projecting method, deposited in the prior art with alleviating
Not only realize that audio and video playing is of high cost, but also the size that video is presented is limited by the screen size of television set, influences to use
The technical problem of the visual experience effect at family.
In a first aspect, an embodiment of the present invention provides a kind of projecting method of set-top box, the set-top box is built-in with projection
Module, the projection lens of the projection module are arranged on the front panel of the set-top box, the described method includes：
Receive the projector distance between the projection lens and projection screen of rangefinder collection；
The target size of function calculating projected picture is calculated according to the projector distance and default projection size；
The target size is sent to the projection module, so that the projection module is projected on the projection screen
The picture dimension of obtained projected picture is equal to the target size.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, institute
Stating projection size calculating function is：
Projection lens in the target size of projected picture=projector distance * projection modules in liquid crystal chip size/projection module
The focal length of head.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, institute
The method of stating further includes：
The projector distance that multiple rangefinders according to receiving gather judges the planarization of the projection screen
Whether preset condition is met；
When the smooth sexual satisfaction preset condition of the projection screen, the target size is sent to the projective module
Block；
When the planarization of the projection screen is unsatisfactory for preset condition, sends projecting direction to the projection module and adjust
Instruction.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiment of first aspect, wherein, institute
State and judge whether the planarization of the projection screen is full according to the projector distance of the multiple rangefinder collections received
Sufficient preset condition, including：
Calculate the difference between multiple projector distances；
Judge the difference between projector distance described in any two whether in the range of preset difference value；
When the difference between multiple projector distances is in the range of preset difference value, it is determined that the projection screen it is smooth
Sexual satisfaction preset condition.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of first aspect, wherein, institute
The method of stating further includes：
According to the IP address of the set-top box and MAC Address generation Quick Response Code；
The Quick Response Code is shown on the projection screen；
When receiving the mobile terminal in the connection request sent after scanning the Quick Response Code, with the mobile terminal
Establish communication connection；
Receive audio file and video file of the mobile terminal by the communication linkup transmit.
Second aspect, the embodiment of the present invention additionally provide a kind of set-top box, including：Rangefinder, control module and projective module
Block；
The output terminal of the rangefinder is connected with the input terminal of the control module, the throwing for the set-top box of collection
Projector distance between shadow camera lens and projection screen, and the projector distance is sent to the control module；
The output terminal of the control module is connected with the input terminal of the projection module, and the control module includes processor
And storage device, computer program is stored with the storage device, and the computer program by the processor when being run
Perform such as above-mentioned first aspect any one of them method；
The projection module, for video pictures to be projected the projection screen according to target size.
With reference to second aspect, an embodiment of the present invention provides the first possible embodiment of second aspect, wherein, institute
Stating rangefinder includes ultrasonic range finder, and the ultrasonic wave launch window and ultrasonic wave of the ultrasonic range finder receive window and set
On the front panel of the set-top box.
With reference to second aspect, an embodiment of the present invention provides second of possible embodiment of second aspect, wherein, institute
The quantity for stating ultrasonic range finder is multiple, the ultrasonic wave launch window and ultrasonic wave reception window of multiple ultrasonic range finders
Mouth is set in the same plane.
With reference to second aspect, an embodiment of the present invention provides the third possible embodiment of second aspect, wherein, institute
It is LCOS modules to state projection module, and the LCOS modules include audio treatment unit, video processing unit, shadow unit and projection
Camera lens.
The third aspect, the embodiment of the present invention additionally provide a kind of non-volatile program code that can perform with processor
Computer-readable medium, said program code make the processor perform any one of above-mentioned first aspect the method.
The embodiment of the present invention brings following beneficial effect：Set-top box provided in an embodiment of the present invention is built-in with projective module
Block, the projection lens of the projection module are arranged on the front panel of the set-top box, and the embodiment of the present invention receives ranging first
Projector distance between the projection lens and projection screen of instrument collection；Then according to the projector distance and default projection
Size calculation function calculates the target size of projected picture；Finally the target size is sent to the projection module, so that
The picture dimension that the projection module projects the projected picture obtained on the projection screen is equal to the target size.
The present invention implements projection module built in the set-top box of offer, it is not necessary to can be realized by television set and video is drawn
The display in face, compared with conventional set-top box and television set coordinate and realize that video pictures are shown, not only cost is relatively low, but also can root
The target size of function calculating projected picture is calculated according to projector distance and default projection size, makes to be finally projected to projection screen
On the picture dimension of projected picture be equal to the target size, screen ruler of the size that video is presented without being bound by television set
It is very little, user is had preferable experience effect.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of flow chart of the projecting method of set-top box provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the projecting method of another set-top box provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the projecting method of another set-top box provided in an embodiment of the present invention；
Fig. 4 is a kind of structure diagram of set-top box provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.
At present, traditional set-top box needs to be used cooperatively with television set, and vision signal and audio signal are passed through television set
Presented, it is not only of high cost, and also the size of video presentation is limited by the screen size of television set, influences the vision body of user
Effect is tested, based on this, a kind of set-top box and its projecting method provided in an embodiment of the present invention, can not only reduce and realize that video is in
Existing cost, and the size that video is presented makes user have preferable experience effect without being bound by the screen size of television set.
For ease of understanding the present embodiment, the projection side first to a kind of set-top box disclosed in the embodiment of the present invention
Method describes in detail, and the set-top box provided by the invention is built-in with projection module, the projection compared with conventional set-top box
The projection lens of module is arranged on the front panel of the set-top box, and Fig. 1 is a kind of set-top box provided in an embodiment of the present invention
The flow chart of projecting method, as shown in Figure 1, the described method comprises the following steps：
Step S101, receives the projector distance between the projection lens and projection screen of rangefinder collection；
Step S102, the target ruler of function calculating projected picture is calculated according to the projector distance and default projection size
It is very little；
Step S103, the target size is sent to the projection module so that the projection module project it is described
The picture dimension of the projected picture obtained on projection screen is equal to the target size.
Specifically, set-top box of the present invention due to built-in projection module, thus with video pictures are projected
Function on projection screen, it is not necessary to the display to video pictures can be realized by television set, with conventional set-top box and electricity
Realize that video pictures are shown depending on machine cooperation to compare, cost is relatively low；The embodiment of the present invention receives being arranged on for rangefinder collection first
The projector distance between projection lens and projection screen on the front panel of set-top box, then according to the projector distance and default
Projection size calculate function calculate projected picture target size；Finally the target size is sent to the projective module
Block, so that the picture dimension that the projection module projects the projected picture obtained on the projection screen is equal to the target ruler
It is very little.It can be counted it can be seen from the above description that measurement projector distance of the embodiment of the present invention and default projection size calculate function
The target size of projected picture is calculated, for different projector distances, function can be calculated according to projection size and calculate phase
The target size for the projected picture answered, i.e., when user adjusts projector distance according to actual application scenarios, on the projection screen
The picture dimension of obtained projected picture is equal to target size, so that screen of the size of video presentation without being bound by television set
Curtain size, makes user have preferable experience effect.
Specifically, when user thinks the size of projected picture projected on the projection screen according to the target size not
When meeting current application scene, user can utilize with the matched remote controler of the set-top box to the size of the projected picture into
Row adjustment.
Specifically, projection size calculating function is：Liquid crystal in the target size of projected picture=projector distance * projection modules
The focal length of projection lens in chip size/projection module.
Exemplary, the target size of projected picture is denoted as A, and unit is inch；Projector distance is denoted as L, and unit is rice；Liquid
The size of chip is D, and unit is inch；The focal length of projection lens is F, and unit is rice, and the value range of F for 0.021 meter extremely
0.379 meter.Above-mentioned projection size calculates function and is represented by：
A=L*D/F
Exemplary, the size for taking LCD panel is 0.7 inch, and the focal length of projection lens is 0.025, when receiving rangefinder
When the projector distance of collection is 2 meters, the target size of projected picture is：
A=(2*0.7/0.025) inch=56 inch
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, without
It is that therefore, other examples of exemplary embodiment can have different values as limitation.
In another embodiment of the present invention, the projecting method of another set-top box is additionally provided, Fig. 2 is implemented for the present invention
The flow chart of the projecting method for another set-top box that example provides, as shown in Fig. 2, on the basis of above-described embodiment, the side
Method is further comprising the steps of：
Step S104, judges the projection screen according to the projector distance that the multiple rangefinders received gather
Planarization whether meet preset condition；
Step S105, when the smooth sexual satisfaction preset condition of the projection screen, the target size is sent to institute
Projection module is stated, so that the picture dimension that the projection module projects the projected picture obtained on the projection screen is equal to institute
State target size.
Step S106, when the planarization of the projection screen is unsatisfactory for preset condition, sends to the projection module and throws
The regulating command of shadow direction.
Specifically, the embodiment of the present invention receive first rangefinder collection projection lens and projection screen between projection away from
From then according to the target size of the projector distance and default projection size calculating function calculating projected picture；Further according to
The projector distance of the multiple rangefinder collections received judges whether the planarization of the projection screen meets to preset
Condition；Finally when the smooth sexual satisfaction preset condition of the projection screen, the target size is sent to the projective module
Block, so that the picture dimension that the projection module projects the projected picture obtained on the projection screen is equal to the target ruler
It is very little；When the planarization of the projection screen is unsatisfactory for preset condition, projecting direction regulating command is sent to the projection module,
So that the projection module finds the projection screen of smooth sexual satisfaction preset condition by adjusting projecting direction.
Specifically, the step S104 comprises the following steps：
1) difference between multiple projector distances is calculated；
2) difference between projector distance described in any two is judged whether in the range of preset difference value, the default difference
Value scope can be configured by remote controler；
3) when the difference between multiple projector distances is in the range of preset difference value, it is determined that the projection screen is put down
Whole sexual satisfaction preset condition.
This is illustrated exemplified by sentencing 3 projector distances of 3 rangefinder collections, if receiving the collection of the first rangefinder
First projector distance is 2.010 meters, and the second projector distance for receiving the collection of the second rangefinder is 2.012, receives the 3rd survey
3rd projector distance of distance meter collection is 2.009 meters, herein the first projector distance, the second projector distance and the 3rd projector distance point
Not Wei the collection of 3 rangefinders projector distance, if preset difference value scope is no more than 0.005 meter, illustrate the projection screen
Smooth sexual satisfaction preset condition.
In another embodiment of the present invention, the projecting method of another set-top box is additionally provided, Fig. 3 is implemented for the present invention
The flow chart of the projecting method for another set-top box that example provides, as shown in figure 3, on the basis of above-described embodiment, the side
Method is further comprising the steps of：
Step S201, Quick Response Code is generated according to the IP address of the set-top box and MAC Address；
Step S202, shows the Quick Response Code on the projection screen；
Step S203, when receiving the mobile terminal in the connection request sent after scanning the Quick Response Code, with institute
State mobile terminal and establish communication connection；
Step S204, receives audio file and video file of the mobile terminal by the communication linkup transmit.
Specifically, being connected when being established with mobile terminal, and receive the audio file and video file of mobile terminal transmission
Afterwards, with reference to the target size of the video pictures calculated, the corresponding screen picture of video file is projected by projection module
The projection screen.
Specifically, set-top box provided in an embodiment of the present invention can be established at the same time with multiple mobile terminals according to the method described above
Connection, after connection is established with mobile terminal, can will establish the mobile terminal list display of connection on the projection screen,
By the way that the connection with some mobile terminal can be cancelled with the matched remote controler of set-top box.
The embodiment of the present invention additionally provides a kind of set-top box, and Fig. 4 is a kind of knot of set-top box provided in an embodiment of the present invention
Structure block diagram, as shown in figure 4, the set-top box includes：Rangefinder 01, control module 02 and projection module 03；
The output terminal of rangefinder 01 is connected with the input terminal of control module 02, the projection lens for the set-top box of collection
Projector distance between head and projection screen, and the projector distance is sent to control module 02；
The output terminal of control module 02 is connected with the input terminal of projection module 03, and control module 02 includes processor and storage
Device, is stored with computer program on the storage device, the computer program performs such as when being run by the processor
Above method embodiment any one of them method；
Projection module 03, for video pictures to be projected the projection screen according to target size.
Specifically, set-top box provided in an embodiment of the present invention realizes the function of projection by projection module 03, with traditional machine
Top box realizes that video pictures are shown with television set cooperation and compares that cost is relatively low, and the size that video is presented is without being bound by television set
Screen size, user is had preferable experience effect.
Optionally, rangefinder 01 includes ultrasonic range finder, the ultrasonic wave launch window of the ultrasonic range finder and super
Acoustic receiver window is arranged on the front panel of the set-top box.
The embodiment of the present invention is using ultrasonic range finder measurement projector distance, ultrasonic range finder short distance ranging indoors
When, test into precision height, cost is low, and safe.
Specifically, the quantity for the ultrasonic range finder that the embodiment of the present invention uses is multiple, multiple ultrasonic rangings
The ultrasonic wave launch window and ultrasonic wave of instrument receive window and are arranged in same plane.Measured by multiple ultrasonic range finders more
A projector distance, then sends multiple projector distances to control module 02, control module 02 by multiple projector distances come
Judge whether the planarization of projection screen meets preset condition.
Optionally, projection module 03 is liquid crystal on silicon (Liquid Crystal On Silicon；LCOS) module, LCOS
Module includes audio treatment unit, video processing unit, shadow unit and projection lens.
The embodiment of the present invention realizes projecting function by LCOS modules using LCOS technologies, and LCOS technologies are thrown using emission-type
Penetrate mode, light utilization ratio up to more than 40%, have high-resolution, high color purity, high-res, power saving, cost low and
The advantages of environmentally friendly.
The technique effect and preceding method embodiment of the set-top box that the embodiment of the present invention is provided, its realization principle and generation
Identical, to briefly describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
The embodiment of the present invention additionally provides a kind of computer for the non-volatile program code that can perform with processor can
Medium is read, said program code, which makes the processor perform any one of the above method embodiment the method, specific implementation, to join
See embodiment of the method, details are not described herein.
The technique effect and preceding method embodiment phase of the device that the embodiment of the present invention is provided, its realization principle and generation
Together, to briefly describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
Flow chart and block diagram in attached drawing show system, method and the computer journey of multiple embodiments according to the present invention
Architectural framework in the cards, function and the operation of sequence product.At this point, each square frame in flow chart or block diagram can generation
The part of one module of table, program segment or code, a part for the module, program segment or code include one or more use
In the executable instruction of logic function as defined in realization.It should also be noted that marked at some as in the realization replaced in square frame
The function of note can also be with different from the order marked in attached drawing generation.For example, two continuous square frames can essentially base
Originally it is performed in parallel, they can also be performed in the opposite order sometimes, this is depending on involved function.It is also noted that
It is the combination of each square frame and block diagram in block diagram and/or flow chart and/or the square frame in flow chart, can uses and perform rule
Fixed function or the dedicated hardware based system of action are realized, or can use the group of specialized hardware and computer instruction
Close to realize.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can pass through it
Its mode is realized.Device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, in another example, multiple units or component can combine
Or another system is desirably integrated into, or some features can be ignored, or do not perform.Another, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be by some communication interfaces, the INDIRECT COUPLING of device or unit or
Communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
In network unit.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units integrate in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in the non-volatile computer read/write memory medium that a processor can perform.Based on such understanding, the present invention
The part that substantially contributes in other words to the prior art of technical solution or the part of the technical solution can be with software
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server, or network equipment etc.) performs each embodiment institute of the present invention
State all or part of step of method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
The medium of store program codes.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical solution, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify the technical solution described in previous embodiment or can be light
It is readily conceivable that change, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention answers the scope of the claims of being subject to.
Claims (10)
1. a kind of projecting method of set-top box, it is characterised in that the set-top box is built-in with projection module, the projection module
Projection lens is arranged on the front panel of the set-top box, the described method includes：
Receive the projector distance between the projection lens and projection screen of rangefinder collection；
The target size of function calculating projected picture is calculated according to the projector distance and default projection size；
The target size is sent to the projection module, is obtained so that the projection module projects on the projection screen
The picture dimension of projected picture be equal to the target size.
2. the projecting method of set-top box according to claim 1, it is characterised in that the projection size calculates function and is：
Projection lens in the target size of projected picture=projector distance * projection modules in liquid crystal chip size/projection module
Focal length.
3. the projecting method of set-top box according to claim 1, it is characterised in that the method further includes：
The projector distance that multiple rangefinders according to receiving gather judge the projection screen planarization whether
Meet preset condition；
When the smooth sexual satisfaction preset condition of the projection screen, the target size is sent to the projection module；
When the planarization of the projection screen is unsatisfactory for preset condition, sends projecting direction adjusting to the projection module and refer to
Order.
4. the projecting method of set-top box according to claim 3, it is characterised in that the basis receives multiple described
The projector distance of rangefinder collection judges whether the planarization of the projection screen meets preset condition, including：
Calculate the difference between multiple projector distances；
Judge the difference between projector distance described in any two whether in the range of preset difference value；
When the difference between multiple projector distances is in the range of preset difference value, it is determined that the planarization of the projection screen is expired
Sufficient preset condition.
5. the projecting method of set-top box according to claim 1, it is characterised in that the method further includes：
According to the IP address of the set-top box and MAC Address generation Quick Response Code；
The Quick Response Code is shown on the projection screen；
When receiving the mobile terminal in the connection request sent after scanning the Quick Response Code, established with the mobile terminal
Communication connection；
Receive audio file and video file of the mobile terminal by the communication linkup transmit.
A kind of 6. set-top box, it is characterised in that including：Rangefinder, control module and projection module；
The output terminal of the rangefinder is connected with the input terminal of the control module, the projection lens for the set-top box of collection
Projector distance between head and projection screen, and the projector distance is sent to the control module；
The output terminal of the control module is connected with the input terminal of the projection module, and the control module includes processor and deposits
Storage device, is stored with computer program on the storage device, the computer program is performed when being run by the processor
Such as claim 1 to 5 any one of them method；
The projection module, for video pictures to be projected the projection screen according to target size.
7. set-top box according to claim 6, it is characterised in that the rangefinder includes ultrasonic range finder, described super
The ultrasonic wave launch window and ultrasonic wave of sound-ranging equipment receive window and are arranged on the front panel of the set-top box.
8. set-top box according to claim 7, it is characterised in that the quantity of the ultrasonic range finder is multiple to be multiple
The ultrasonic wave launch window and ultrasonic wave of the ultrasonic range finder receive window and are arranged in same plane.
9. set-top box according to claim 6, it is characterised in that the projection module is LCOS modules, the LCOS moulds
Block includes audio treatment unit, video processing unit, shadow unit and projection lens.
10. a kind of computer-readable medium for the non-volatile program code that can perform with processor, it is characterised in that described
Program code makes the processor perform any one of the claim 1 to 5 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161751.1A CN107908061A (en) | 2017-11-20 | 2017-11-20 | Set-top box and its projecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161751.1A CN107908061A (en) | 2017-11-20 | 2017-11-20 | Set-top box and its projecting method |
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| Publication Number | Publication Date |
|---|---|
| CN107908061A true CN107908061A (en) | 2018-04-13 |
Family
ID=61846751
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711161751.1A Pending CN107908061A (en) | 2017-11-20 | 2017-11-20 | Set-top box and its projecting method |
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| CN (1) | CN107908061A (en) |
Cited By (1)
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