CN106657953A - Projector automation trapezoid correction system - Google Patents
Projector automation trapezoid correction system Download PDFInfo
- Publication number
- CN106657953A CN106657953A CN201611047366.XA CN201611047366A CN106657953A CN 106657953 A CN106657953 A CN 106657953A CN 201611047366 A CN201611047366 A CN 201611047366A CN 106657953 A CN106657953 A CN 106657953A
- Authority
- CN
- China
- Prior art keywords
- projecting apparatus
- projector
- master chip
- gyro sensor
- pcb board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a projector automation trapezoid correction system. The system comprises a projector shell, a PCB, a switch component, a gyroscope sensor, a main chip, a register chip, a display screen and a projector lens. The projector shell is horizontally arranged. The PCB is arranged on a bottom end surface of the projector shell. The projector lens is arranged on one side of the projector shell in an embedded mode. The gyroscope sensor, the main chip, the register chip and the display screen are successively arranged on the PCB. The switch component is arranged at an inner corner of the projector shell. The switch component is arranged on the PCB. By using the projector automation trapezoid correction system, a projector trapezoid distortion phenomenon can be rapidly adjusted and usage and maintenance cost is reduced so that an application of the projector is humanized and idealized.
Description
Technical field
The present invention relates to correct the technical field of system, a kind of especially automatic trapezoidal correcting system of projecting apparatus.
Background technology
Projecting apparatus is widely used as a kind of giant-screen technology at aspects such as concert, commercial affairs, meeting, home theaters.Throw
Shadow instrument is the precision instrument for integrating light, mechanical, electrical complication system.In use, often because operating personnel operate not
Ideal effect is not reached when picture is caused.Projector architecture is complicated, is required to professional person to carry out in general installation and debugging, grasps
It is very much inconvenient for making to get up, it is impossible to be widely used.During using projecting apparatus, its level, vertical direction are required to be hung down with curtain
Directly, completely normal image can be just projected out.But during actual use, left and right directions is to be easier to reach requirement
, but in vertical direction, because the adjustment of height of projector is extremely difficult to preferable condition, so can be easy to Vertical Square occur
To image fault, it is higher than if desired for projected picture, can thus go out up big and down small trapezoidal distortion, if projected picture need
It is lower, then up-small and down-big trapezoidal distortion occurs, therefore the image trapezoidal distortion solved in vertical direction is required.
The solution of existing projecting apparatus is manually adjusted by user or technical staff, and the former is due to unprofessional, institute
Not reach preferable effect unavoidably, the latter is extremely difficult to the requirement of user in terms of the time, and maintenance cost also can be improved,
So the drawbacks of having larger.
The content of the invention
The technical problem to be solved in the invention is the automatic trapezoidal school of a kind of projecting apparatus proposed for above-mentioned technical problem
Positive system, simple structure can meet anyone and quickly adjust projector trapezoidal distortion phenomenon, it is to avoid projection caused by maloperation
Instrument damages problem, reduces operation and maintenance cost so that the application of projecting apparatus more hommization and idealization.
To solve above-mentioned technical problem, the invention provides a kind of automatic trapezoidal correcting system of projecting apparatus, including projecting apparatus
Housing, pcb board, switching component, gyro sensor, master chip, register die, display screen and projector lens, it is described
Projecting apparatus housing is horizontally disposed with, and the pcb board is arranged on the bottom end face of projecting apparatus housing, and the projector lens are embedded
The side of projecting apparatus housing is arranged on, the gyro sensor, master chip, register die and display screen are arranged at PCB
On plate, the side of the projector lens is located at projecting apparatus enclosure interior and arranges display screen, and the vision signal of the display screen is defeated
Enter the output end of end connection register die, the input of the register die connects the VT of master chip,
The input of the master chip connects the output end of gyro sensor, and the switching component arranges corner in projecting apparatus housing
Place.
Further limit, in above-mentioned technical proposal, the gyro sensor is parallel with the light path in projector lens
Arrange, it is ensured that gyro sensor accurately senses the deviation angle of projecting apparatus.
Further limit, in above-mentioned technical proposal, the pcb board be arranged in parallel with the light path in projector lens, can
Components and parts in order to be arranged on pcb board are accurately measured the angle of deviation and are adjusted correspondingly.
Further limit, in above-mentioned technical proposal, AD signal input parts are provided with the master chip and IIC signals are defeated
Enter end, the AD signal input parts and IIC signal input parts are all connected with the signal output part of gyro sensor, can be timely
The angle-data that gyro sensor senses timely is delivered into master chip.
Further limit, in above-mentioned technical proposal, the gyro sensor is big with the distance between switching component
In 1cm, interference of the switching component to gyro sensor can be effectively prevented.
Further limit, in above-mentioned technical proposal, just to gyro sensor and master in the projecting apparatus inner walls
The position of beneath chips also sets up ventilating fan, and the ventilating fan is connected on pcb board by wire, can be to gyro sensor
Radiated, it is ensured that the accuracy of measurement angle.
After said system, simple structure can meet anyone and quickly adjust projector trapezoidal distortion phenomenon, it is to avoid
Projecting apparatus damages problem caused by maloperation, reduces operation and maintenance cost so that the application of projecting apparatus more hommization and reason
Wanting.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the side structure schematic diagram of the present invention；
Fig. 3 is projecting apparatus enclosure interior part connection diagram in the present invention；
Fig. 4 is the image one shown on curtain before present invention correction；
Fig. 5 is the image two shown on curtain before present invention correction；
Fig. 6 is the image shown on curtain after present invention correction.
In figure：1 is projecting apparatus housing, and 2 is pcb board, and 3 is switching component, and 4 is gyro sensor, and 5 is master chip, 6
For register die, 7 is display screen, and 8 is projector lens, and 9 is ventilating fan.
Specific embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
In describing the invention, it is to be understood that term " upper end ", " lower end ", " top ", " side ", " another
The orientation or position relationship of the instruction such as side ", " one end ", " other end ", " two ends " is to be closed based on orientation shown in the drawings or position
System, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected；Can be straight
Connect connected, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can be managed with concrete condition
Solve above-mentioned term concrete meaning in the present invention.
As shown in figs. 1 to 6 be a kind of automatic trapezoidal correcting system of projecting apparatus, including projecting apparatus housing 1, pcb board 2, open
Close components and parts 3, gyro sensor 4, master chip 5, register die 6, display screen 7 and projector lens 8, projecting apparatus housing 1
Horizontally disposed, pcb board 2 is arranged on the bottom end face of projecting apparatus housing 1, and projector lens 8 are embedded to be arranged on projecting apparatus shell
The side of body 1, gyro sensor 4, master chip 5, register die 6 and display screen 7 are arranged on pcb board 2, projecting apparatus mirror
8 side is located at the inside of projecting apparatus housing 1 and arranges display screen 7, the video signal input terminal connection register die of display screen 7
6 output end, the input of register die 6 connects the VT of master chip 5, the input connection of master chip 5
The output end of gyro sensor 4, switching component 3 arranges corner in projecting apparatus housing 1.
Wherein, gyro sensor 4 be arranged in parallel with the light path in projector lens 8.In pcb board 2 and projector lens 8
Light path be arranged in parallel.AD signal input parts and IIC signal input parts are provided with master chip 5, AD signal input parts and IIC believe
Number input is all connected with the signal output part of gyro sensor 4.The distance between gyro sensor 4 and switching component 3
More than 1cm.Just ventilating fan 9 is also set up to the position of gyro sensor 4 and the lower section of master chip 5 on the inwall of projecting apparatus housing 1, arranged
Fan 9 is connected to the operation for controlling ventilating fan 9 on pcb board 2 by pcb board by wire.
The operating principle of the automatic trapezoidal correcting system of the projecting apparatus is as follows：
First, operating personnel are placed on projecting apparatus in horizontal table top, open projecting apparatus, and projecting apparatus enters initialization shape
State, ventilating fan 9 runs, and is radiated to gyro sensor 4.In its horizontal plane of the angle deviating of projecting apparatus, the figure of projection
As occur upper and lower to trapezoidal distortion, at this moment gyro sensor the angular speed experienced is converted into available output letter
Number, and this signal being sent to master chip 5, master chip 5 sends the data of keystone to posting further according to deviation angle size
Storage chip 6, register die 6 is received handles it after corresponding data, and according to inclined angle respective direction is made
Correction, so that image shows normally.
In the present invention, model L3GD20 of gyro sensor 4, master chip 5 from MST6M182XST-Z1,
MSTAR6a628 chips, register die 6 selects T113AI chips, and the function of its automatic keystone is very good.
As shown in figure 3, when the horizontal plane of projecting apparatus is with curtain out of plumb, gyro sensor 4 can export a representative
The signal output of angle value, the signal first confirms that whether the data are stable Jing after the collection of main control chip 2, if unstable, may
It is that user is moving machine.If the signal value is stabilized, master chip 5 is judged the value and is calculated projecting apparatus to incline
The angular transition data are sent to register die 6 by rake angle from bus, adjust the register value of register die 6, deposit
Device chip 6 according to be transmitted through come data, adjustment vision signal simultaneously exports corresponding row, field signal, from both sides to it is middle and from
On compress the trapezoidal distortion part of image down or from the bottom up so that image returns to the centre position of curtain and normally shows
Show.
In order to check the automatic trapezoidal correcting system of projecting apparatus proposed by the present invention, present inventor has performed multigroup experiment, such as
Fig. 4 and Fig. 5 are the image before correction on curtain；Such as the image that Fig. 6 is display on curtain after correction；By the correction system of the present invention
System, can effectively improve the picture steadiness of projecting apparatus, it is ensured that the normal rectangle diagram picture on curtain, what is be convenient for people to makes
With.
Although the foregoing describing the specific embodiment of the present invention, those skilled in the art should be appreciated that this
It is merely illustrative of, various changes or modifications can be made to present embodiment, without departing from the principle and essence of the present invention,
Protection scope of the present invention is only limited by the claims that follow.
Claims (6)
1. the automatic trapezoidal correcting system of a kind of projecting apparatus, it is characterised in that：Including projecting apparatus housing, pcb board, switching component,
Gyro sensor, master chip, register die, display screen and projector lens, the projecting apparatus housing is horizontally disposed with, described
Pcb board is arranged on the bottom end face of projecting apparatus housing, the embedded side for being arranged on projecting apparatus housing of the projector lens,
The gyro sensor, master chip, register die and display screen are arranged on pcb board, and the one of the projector lens
Side is located at projecting apparatus enclosure interior and arranges display screen, and the video signal input terminal of the display screen connects the output of register die
End, the input of the register die connects the VT of master chip, the input connection top of the master chip
The output end of spiral shell instrument sensor, the switching component arranges corner in projecting apparatus housing.
2. the automatic trapezoidal correcting system of a kind of projecting apparatus as claimed in claim 1, it is characterised in that：The gyro sensor
It is arranged in parallel with the light path in projector lens.
3. the automatic trapezoidal correcting system of a kind of projecting apparatus as claimed in claim 1, it is characterised in that：The pcb board and projection
Light path in instrument camera lens be arranged in parallel.
4. the automatic trapezoidal correcting system of a kind of projecting apparatus as claimed in claim 1, it is characterised in that：Arrange on the master chip
There are AD signal input parts and IIC signal input parts, the AD signal input parts and IIC signal input parts are all connected with gyro sensors
The signal output part of device.
5. the automatic trapezoidal correcting system of a kind of projecting apparatus as claimed in claim 1, it is characterised in that：The gyro sensor
It is more than 1cm with the distance between switching component.
6. the automatic trapezoidal correcting system of a kind of projecting apparatus as claimed in claim 1, it is characterised in that：In the projecting apparatus housing
Ventilating fan is just being also set up on wall to the position below gyro sensor and master chip, the ventilating fan is connected to by wire
On pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047366.XA CN106657953A (en) | 2016-11-22 | 2016-11-22 | Projector automation trapezoid correction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047366.XA CN106657953A (en) | 2016-11-22 | 2016-11-22 | Projector automation trapezoid correction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106657953A true CN106657953A (en) | 2017-05-10 |
Family
ID=58811453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047366.XA Pending CN106657953A (en) | 2016-11-22 | 2016-11-22 | Projector automation trapezoid correction system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106657953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127570A1 (en) * | 2017-12-30 | 2019-07-04 | 神画科技（深圳）有限公司 | Method for acquiring maximum rectangular projection image during projection unit keystone correction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488990A (en) * | 2002-10-09 | 2004-04-14 | 株式会社日立制作所 | Projection type display device |
| CN202340277U (en) * | 2011-04-18 | 2012-07-18 | 四川维优科技有限责任公司 | Projector with automatic trapezoid correcting function |
| CN102650805A (en) * | 2012-05-25 | 2012-08-29 | 深圳市众进思创科技开发有限公司 | Projecting apparatus and a correction method for images projected in multiple directions |
| CN104460197A (en) * | 2014-11-25 | 2015-03-25 | 深圳先进技术研究院 | Projector capable of automatically correcting geometric distortion and correcting method thereof |
| CN105979234A (en) * | 2016-06-13 | 2016-09-28 | Tcl集团股份有限公司 | Projection image correction method and projection device |
| CN206164740U (en) * | 2016-11-22 | 2017-05-10 | 江苏轩博电子科技有限公司 | Automatic trapezoidal correction system of projecting apparatus |
-
2016
- 2016-11-22 CN CN201611047366.XA patent/CN106657953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488990A (en) * | 2002-10-09 | 2004-04-14 | 株式会社日立制作所 | Projection type display device |
| CN202340277U (en) * | 2011-04-18 | 2012-07-18 | 四川维优科技有限责任公司 | Projector with automatic trapezoid correcting function |
| CN102650805A (en) * | 2012-05-25 | 2012-08-29 | 深圳市众进思创科技开发有限公司 | Projecting apparatus and a correction method for images projected in multiple directions |
| CN104460197A (en) * | 2014-11-25 | 2015-03-25 | 深圳先进技术研究院 | Projector capable of automatically correcting geometric distortion and correcting method thereof |
| CN105979234A (en) * | 2016-06-13 | 2016-09-28 | Tcl集团股份有限公司 | Projection image correction method and projection device |
| CN206164740U (en) * | 2016-11-22 | 2017-05-10 | 江苏轩博电子科技有限公司 | Automatic trapezoidal correction system of projecting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127570A1 (en) * | 2017-12-30 | 2019-07-04 | 神画科技（深圳）有限公司 | Method for acquiring maximum rectangular projection image during projection unit keystone correction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |