CN109873996A - The laser television and laser television projection size detection method of projection size can be detected - Google Patents
The laser television and laser television projection size detection method of projection size can be detected Download PDFInfo
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- CN109873996A CN109873996A CN201910151289.XA CN201910151289A CN109873996A CN 109873996 A CN109873996 A CN 109873996A CN 201910151289 A CN201910151289 A CN 201910151289A CN 109873996 A CN109873996 A CN 109873996A
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Abstract
The present invention relates to laser television technologies, solve the projection size of current laser television without the mode of dynamic test, install very inconvenient problem.Technical solution is summarized are as follows: the present invention is formed by the projection size that triangle calculates laser television based on the distance and laser boundary by the distance between the light-emitting window of detection projection and projection screen.Beneficial effect is: the present invention passes through the distance between the light-emitting window of detection projection and projection screen, the projection size of laser television can dynamically be calculated, enabling laser television, related personnel very easily gets current projection size during the installation process, is convenient for installation and debugging.The present invention is especially suitable for laser televisions.
Description
Technical field
The present invention relates to laser television technologies, in particular to laser television projection size detection technique.
Background technique
It is special for the mode that the projection size of laser television is tested without dynamic at present during laser television is installed
Be not project to blank wall etc. not the place of dimension reference when, if wondering projection size, it is also necessary to which manual measurement takes
When it is laborious, it is very inconvenient.
Summary of the invention
The present invention is to solve the projection size of current laser television without the mode of dynamic test, is installed very inconvenient
Problem provides a kind of laser television that can detect projection size and laser television projection size detection method.
To solve the above problems, the technical solution adopted by the present invention is that:
The laser television of projection size, including projection host can be detected, the projection host includes micro controller module, swashs
Light projection module and apart from detection module, the micro controller module connects with laser projection module and apart from detection module respectively
It connects, the micro controller module is described to be used to detect laser apart from detection module for controlling laser projection module projects image
The distance between light-emitting window and projection screen of projection module, and will test result and be sent to micro controller module；
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and put down
In the plane of gravity direction, B is on laser projection to projection screen and on the intersecting lens of plane one and projection screen row
The farthest point of distance A point, C be laser projection to projection screen on and on intersecting lens of the plane one with projection screen at a distance from
The nearest point of A point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 be B point and D point it
Between distance, X2 be the distance between C point and D point, X3 be the distance between B point and C point；
The micro controller module is also used to according to the distance between the light-emitting window of laser projection module and projection screen, in advance
If ∠ BAD sine value and Pythagorean theorem calculate the value of X1, according to the light-emitting window of laser projection module and projection screen it
Between distance, preset ∠ CAD sine value and Pythagorean theorem calculate the value of X2, then obtained with the value that the value of X1 subtracts X2
The value of X3.
As advanced optimizing, the micro controller module is also used to control laser projection module and projects the value of X3
Display.
As advanced optimizing, the micro controller module is also used to value and preset viewing ratio meter according to X3
It calculates rule and calculates viewing ratio, and control laser projection module viewing ratio is subjected to projection and show.
As advanced optimizing, above-mentioned laser television further includes loudspeaker module, the loudspeaker module and microcontroller
Module connection, the micro controller module are also used to control the value that loudspeaker plays X3.
As advanced optimizing, it is described apart from detection module using infrared distance measurement module and/or ultrasonic distance measuring module and/
Or millimetre-wave radar range finder module and/or laser ranging module.
Laser television projection size detection method, based on the above-mentioned laser television that can detect projection size, comprising:
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and put down
In the plane of gravity direction, B is on laser projection to projection screen and on the intersecting lens of plane one and projection screen row
The farthest point of distance A point, C be laser projection to projection screen on and on intersecting lens of the plane one with projection screen at a distance from
The nearest point of A point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 be B point and D point it
Between distance, X2 be the distance between C point and D point, X3 be the distance between B point and C point；
The distance between light-emitting window and projection screen apart from detection module detection laser projection module, and will test result
It is sent to micro controller module；
Micro controller module is according to the distance between the light-emitting window of laser projection module and projection screen, preset ∠ BAD
Sine value and Pythagorean theorem calculate the value of X1, according to the distance between the light-emitting window of laser projection module and projection screen,
The sine value and Pythagorean theorem of preset ∠ CAD calculate the value of X2；
Micro controller module obtains the value of X3 with the value that the value of X1 subtracts X2.
It further include that the value of X3 carried out projection is aobvious for micro controller module control laser projection module as advanced optimizing
Show.
It further include micro controller module according to the value of X3 and preset viewing ratio calculating rule as advanced optimizing
Viewing ratio is then calculated, and controls laser projection module viewing ratio is subjected to projection and show.
It further include the value that micro controller module control loudspeaker plays X3 as advanced optimizing.
As advanced optimizing, it is described apart from detection module using infrared distance measurement module and/or ultrasonic distance measuring module and/
Or millimetre-wave radar range finder module and/or laser ranging module.
Beneficial effect is: the present invention is based on the distance by the distance between the light-emitting window of detection projection and projection screen
The projection size of laser television can be calculated by being formed by triangle with laser boundary, so that laser television is during the installation process
Related personnel can very easily get current projection size, be convenient for installation and debugging.The present invention is especially suitable for
Laser television.
Detailed description of the invention
Fig. 1 is the projection size Computing Principle schematic diagram of the embodiment of the present invention.
Wherein, A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point simultaneously
It is parallel to the plane of gravity direction, B is on laser projection to projection screen and on the intersecting lens of plane one and projection screen
The farthest point of distance A point, C be on laser projection to projection screen and on the intersecting lens of plane one and projection screen away from
The point nearest from A point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 is B point and D point
The distance between, X2 is the distance between C point and D point, and X3 is the distance between B point and C point.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is further illustrated.
The technical scheme is that
The laser television of projection size, including projection host can be detected, the projection host includes micro controller module, swashs
Light projection module and apart from detection module, the micro controller module connects with laser projection module and apart from detection module respectively
It connects, the micro controller module is described to be used to detect laser apart from detection module for controlling laser projection module projects image
The distance between light-emitting window and projection screen of projection module, and will test result and be sent to micro controller module；
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and put down
In the plane of gravity direction, B is on laser projection to projection screen and on the intersecting lens of plane one and projection screen row
The farthest point of distance A point, C be laser projection to projection screen on and on intersecting lens of the plane one with projection screen at a distance from
The nearest point of A point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 be B point and D point it
Between distance, X2 be the distance between C point and D point, X3 be the distance between B point and C point；
The micro controller module is also used to according to the distance between the light-emitting window of laser projection module and projection screen, in advance
If ∠ BAD sine value and Pythagorean theorem calculate the value of X1, according to the light-emitting window of laser projection module and projection screen it
Between distance, preset ∠ CAD sine value and Pythagorean theorem calculate the value of X2, then obtained with the value that the value of X1 subtracts X2
The value of X3.
Laser television projection size detection method, based on the above-mentioned laser television that can detect projection size, comprising:
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and put down
In the plane of gravity direction, B is on laser projection to projection screen and on the intersecting lens of plane one and projection screen row
The farthest point of distance A point, C be laser projection to projection screen on and on intersecting lens of the plane one with projection screen at a distance from
The nearest point of A point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 be B point and D point it
Between distance, X2 be the distance between C point and D point, X3 be the distance between B point and C point；
The distance between light-emitting window and projection screen apart from detection module detection laser projection module, and will test result
It is sent to micro controller module；
Micro controller module is according to the distance between the light-emitting window of laser projection module and projection screen, preset ∠ BAD
Sine value and Pythagorean theorem calculate the value of X1, according to the distance between the light-emitting window of laser projection module and projection screen,
The sine value and Pythagorean theorem of preset ∠ CAD calculate the value of X2；
Micro controller module obtains the value of X3 with the value that the value of X1 subtracts X2.
The principle of above-mentioned detection projection size is: as shown in Figure 1, when projection host factory, laser projection range (i.e. ∠
BAC it) has just been fixed with laser projection direction (i.e. ∠ CAD), has been known quantity, then the light-emitting window by detection projection and projection
The distance between curtain forms two right angled triangle △ ABD and △ ACD, between A point known in △ ABD and D point away from
From, ∠ BAD and ∠ BDA, the value of X1 can be calculated, at a distance from A point known in △ ABD is between D point, ∠ CAD and ∠
CDA can calculate the value of X2, can further calculate the projection size of laser television, the i.e. value of X3.
The above-mentioned laser television that can detect projection size is advanced optimized, specifically may is that micro controller module
It is also used to control laser projection module the value of X3 is subjected to projection and show, the projection size real-time display measured is come out, it is convenient
Installation.Micro controller module be also used to be calculated according to the value and preset viewing ratio computation rule of X3 best viewing away from
From, and control laser projection module viewing ratio is subjected to projection and show, it is that user recommends according to current projection size
Viewing distance facilitates user to adjust projection size according to the actual situation.Laser television further includes loudspeaker module, loudspeaker module
It is connect with micro controller module, micro controller module is also used to control the value that loudspeaker plays X3, so that related personnel is in not side
Just projection size can also be got by seeing when projection screen.Infrared distance measurement module and/or ultrasonic distance measurement are used apart from detection module
Module and/or millimetre-wave radar range finder module and/or laser ranging module.
Above-mentioned laser television projection size detection method is advanced optimized, specifically may is that micro controller module
The value of X3 is carried out projection and shown by control laser projection module, and the projection size real-time display measured is come out, installation is facilitated.It is micro-
Controller module calculates viewing ratio according to the value and preset viewing ratio computation rule of X3, and controls laser
Viewing ratio is carried out projection and shown by projection module, is that user recommends viewing distance according to current projection size, convenient
User adjusts projection size according to the actual situation.Micro controller module controls the value that loudspeaker plays X3, so that related personnel exists
Projection size can also be got by being inconvenient to see when projection screen.Infrared distance measurement module and/or ultrasonic wave are used apart from detection module
Range finder module and/or millimetre-wave radar range finder module and/or laser ranging module.
Claims (10)
1. the laser television of projection size can be detected, including projection host, the projection host includes micro controller module and swashs
Light projection module, the micro controller module are connect with laser projection module, and the micro controller module is for controlling laser throwing
Shadow module projects image, which is characterized in that the projection host further include apart from detection module, it is described apart from detection module with it is micro-
Controller module connection；
The distance between light-emitting window and the projection screen for being used to detect laser projection module apart from detection module, and will test
As a result it is sent to micro controller module；
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and be parallel to
The plane of gravity direction, B are on laser projection to the projection screen and distance A on intersecting lens of the plane one with projection screen
The farthest point of point, C is on laser projection to projection screen and distance A point is most on intersecting lens of the plane one with projection screen
Close point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 is between B point and D point
Distance, X2 are the distance between C point and D point, and X3 is the distance between B point and C point；
The micro controller module is also used to according to the distance between the light-emitting window of laser projection module and projection screen, preset
The sine value and Pythagorean theorem of ∠ BAD calculate the value of X1, according between the light-emitting window and projection screen of laser projection module
Distance, the sine value of preset ∠ CAD and Pythagorean theorem calculate the value of X2, then obtain X3's with the value that the value of X1 subtracts X2
Value.
2. the laser television of projection size can be detected as described in claim 1, which is characterized in that the micro controller module is also
The value of X3 projection is carried out for controlling laser projection module to show.
3. the laser television of projection size can be detected as described in claim 1, which is characterized in that the micro controller module is also
For calculating viewing ratio according to the value and preset viewing ratio computation rule of X3, and control laser projection mould
Viewing ratio is carried out projection and shown by block.
4. the laser television of projection size can be detected as described in claim 1, which is characterized in that it further include loudspeaker module,
The loudspeaker module is connect with micro controller module, and the micro controller module is also used to control the value that loudspeaker plays X3.
5. the laser television of projection size can be detected as described in claim 1, which is characterized in that described to be adopted apart from detection module
With infrared distance measurement module and/or ultrasonic distance measuring module and/or millimetre-wave radar range finder module and/or laser ranging module.
6. laser television projection size detection method, swashing for projection size can be detected based on claim 1-5 is described in any item
Photoelectricity view characterized by comprising
If: A is the point where the light-emitting window of laser projection module, and plane one is vertical with projection screen and crosses A point and be parallel to
The plane of gravity direction, B are on laser projection to the projection screen and distance A on intersecting lens of the plane one with projection screen
The farthest point of point, C is on laser projection to projection screen and distance A point is most on intersecting lens of the plane one with projection screen
Close point, D be A point between projection screen at a distance from where straight line and projection screen intersection point, X1 is between B point and D point
Distance, X2 are the distance between C point and D point, and X3 is the distance between B point and C point；
The distance between light-emitting window and projection screen apart from detection module detection laser projection module, and will test result transmission
To micro controller module；
Micro controller module according to the distance between the light-emitting window of laser projection module and projection screen, preset ∠ BAD just
String value and Pythagorean theorem calculate the value of X1, according to the distance between the light-emitting window of laser projection module and projection screen, preset
∠ CAD sine value and Pythagorean theorem calculate the value of X2；
Micro controller module obtains the value of X3 with the value that the value of X1 subtracts X2.
7. laser television projection size detection method as claimed in claim 6, which is characterized in that further include micro controller module
The value of X3 is carried out projection and shown by control laser projection module.
8. laser television projection size detection method as claimed in claim 6, which is characterized in that further include micro controller module
Viewing ratio is calculated according to the value of X3 and preset viewing ratio computation rule, and controlling laser projection module will
Viewing ratio carries out projection and shows.
9. laser television projection size detection method as claimed in claim 6, which is characterized in that further include micro controller module
Control the value that loudspeaker plays X3.
10. laser television projection size detection method as claimed in claim 6, which is characterized in that described apart from detection module
Using infrared distance measurement module and/or ultrasonic distance measuring module and/or millimetre-wave radar range finder module and/or laser ranging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151289.XA CN109873996A (en) | 2019-02-28 | 2019-02-28 | The laser television and laser television projection size detection method of projection size can be detected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151289.XA CN109873996A (en) | 2019-02-28 | 2019-02-28 | The laser television and laser television projection size detection method of projection size can be detected |
Publications (1)
| Publication Number | Publication Date |
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| CN109873996A true CN109873996A (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910151289.XA Pending CN109873996A (en) | 2019-02-28 | 2019-02-28 | The laser television and laser television projection size detection method of projection size can be detected |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389494A (en) * | 2019-07-23 | 2019-10-29 | 傲基科技股份有限公司 | The measuring method of laser aid and its laser projection pattern dimension |
| CN113566717A (en) * | 2021-09-27 | 2021-10-29 | 陕西汽车集团股份有限公司 | Method and device for detecting bending height of double-bent longitudinal beam |
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| CN101109894A (en) * | 2006-07-21 | 2008-01-23 | 崔海龙 | Table type large-size imaging apparatus |
| CN106454297A (en) * | 2016-11-15 | 2017-02-22 | 深圳Tcl数字技术有限公司 | Method and apparatus of debugging and installing projector |
| CN108521566A (en) * | 2018-05-11 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of calibration method and device of projected image |
| CN108900820A (en) * | 2018-05-14 | 2018-11-27 | 河南大学 | A kind of control method and device of projector |
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2019
- 2019-02-28 CN CN201910151289.XA patent/CN109873996A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109894A (en) * | 2006-07-21 | 2008-01-23 | 崔海龙 | Table type large-size imaging apparatus |
| CN106454297A (en) * | 2016-11-15 | 2017-02-22 | 深圳Tcl数字技术有限公司 | Method and apparatus of debugging and installing projector |
| CN108521566A (en) * | 2018-05-11 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of calibration method and device of projected image |
| CN108900820A (en) * | 2018-05-14 | 2018-11-27 | 河南大学 | A kind of control method and device of projector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389494A (en) * | 2019-07-23 | 2019-10-29 | 傲基科技股份有限公司 | The measuring method of laser aid and its laser projection pattern dimension |
| CN113566717A (en) * | 2021-09-27 | 2021-10-29 | 陕西汽车集团股份有限公司 | Method and device for detecting bending height of double-bent longitudinal beam |
| CN113566717B (en) * | 2021-09-27 | 2021-12-10 | 陕西汽车集团股份有限公司 | Method and device for detecting bending height of double-bent longitudinal beam |
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Application publication date: 20190611 |