CN2747812Y - Special digital focusing auto regulator for 16:9 back projecting TV - Google Patents
Special digital focusing auto regulator for 16:9 back projecting TV Download PDFInfo
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- CN2747812Y CN2747812Y CN 200420053349 CN200420053349U CN2747812Y CN 2747812 Y CN2747812 Y CN 2747812Y CN 200420053349 CN200420053349 CN 200420053349 CN 200420053349 U CN200420053349 U CN 200420053349U CN 2747812 Y CN2747812 Y CN 2747812Y
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Abstract
The utility model relates to a special digital focusing auto regulator for the 16:9 back projecting TV, belonging to the technical field of back projecting TV technologies. The utility model comprises a digital focusing control board, a CCD camera, an image collecting card, an IEEE 1394 connecting line body, an industrial control computer and a control interface connecting the industrial control computer with the digital focusing control board. The digital focusing control board comprises a focusing control processing chip STV2050, a MCU control chip, a logic chip, an analog quantity amplifying unit, a self-calibration unit and an EEPROM chip. The model number of the MCU control chip is TMP88PS38BN, and the model number of the logic chip is EPM3032A. The utility model has high regulation speed and high precision and needs not any more operators, and the utility model can considerably improve the production efficiency and the production lot of the back projecting TV. The utility model can be widely used in the production of the 16:9 CRT type back projecting TV.
Description
Technical field
The utility model belongs to the rear-projection TV set technical field, more particularly relates to the improvement of 16: 9 rear-projection TV set special digital convergence automatic regulating apparatuses.
Background technology
The digit convergence automatic adjustment system mainly is used on the production line of CRT class rear-projection TV set.Traditional manual convergence debugging efficiency is too low, and quality is too poor, has become the bottleneck of production in enormous quantities.Therefore, most of in recent years factories have used that the digit convergence automatic adjustment system replaces that efficient is low, the manual of consistency difference assembled debugging, can be factory simultaneously and save a large amount of human resources.
The present digit convergence automatic adjustment system of using in each big television set manufacturer, its control principle is exactly the same.But also exist common defective: 1.Adjust low precision, need manually carry out a large amount of patch works after adjustment finishes automatically.2。Correct indifferently, television set PT positional tolerance scope is less.3。The manufacturing cost height.
Summary of the invention
The purpose of this utility model, just be to overcome above-mentioned shortcoming and defect, provide the STV2050 of a kind of ST of being based upon company to assemble on the processing controls chip, combining image is handled the systemic engineering and technological research of science and electronic application and control, comprise hardware part and software part, adjustment precision height, it is very fast to regulate the speed, the rectification ability is stronger, television set PT positional tolerance scope is bigger, range of application is wider, and lower 16: 9 rear-projection TV set special digitals of application cost are assembled automatic regulating apparatus.
In order to achieve the above object, the utility model comprise the digital convergence control board that is installed in the rear-projection TV set, the IEEE1394 connecting line body of be used to take pictures the CCD camera of assembling the grid image signal and image pick-up card, connection CCD camera and image pick-up card, with the industrial control computer of IMAQ card connection, be connected the control interface of industrial control computer and digital convergence control board.Digital convergence control board comprises assembles the circuit such as eeprom memory chip that control and treatment chip STV2050, the MCU control chip that is connected with STV2050, the logic chip that is connected with the MCU control chip, the analog quantity amplifying unit that is connected with STV2050 and self calibration unit, the capable field sync signal processing unit that is connected with the MCU control chip and light feed back input unit and is connected with the MCU control chip.
The CCD camera has 1300 * 1030 pixels, and it is 32 pci bus control mode that image pick-up card is selected data width for use, the digit convergence image information that high-speed transfer is gathered.
The digit convergence automatic adjustment system generally is to gather the convergence grid image signal that shows on the television set by the synchronous triggering capture card, the standard network table images signal of simulating with computer relatively then, find out the difference between some characteristic point in the grid image signal, comprise H/V and different colours.
According to the difference on the data within the specific limits, carry out the adjustment of series of features data again, data are corrected in the convergence of using interpolation algorithm to calculate all characteristic points then.Rectification finishes, and carries out IMAQ, analytical calculation repeatedly again.Certainly need to consider because the nonlinear distortion that when images acquired, occurs that difference caused that put the television set position.
The parts that the present invention mainly comprises have: image pick-up card, CCD camera, connecting line body and control interface circuit, Industry Control computer etc.The CCD camera possesses 1300 * 1030 resolution, and picking rate can reach 11.75fps.It is 32 pci bus mode that image pick-up card is selected data width for use, purpose be exactly use pci bus the operating frequency of intrinsic 33MHz.When carrying out image data transmission, can reach the transfer rate of 264mbps like this, and can guarantee to satisfy the pictorial data transmission speed of 1300 * 1030 * 11.75 * 3=45.00mbps fully.Use the IEEE1394 connected mode between image pick-up card and the ccd camera, Industry Control computer expert crosses CCD camera images acquired, carry out then that view data reads, analysis of image data, view data computing, convert at last and assemble control data stream, process computer parallel port is transferred to the convergence control unit plate on the television set.
Digital convergence control board comprises the analog quantity amplifying unit assembling control and treatment chip STV2050, the MCU control chip that is connected with STV2050, the logic chip that is connected with the MCU control chip, be connected with STV2050 and self calibration unit and the eeprom memory chip that is connected with the MCU control chip.
The STV2050 programming that the digit convergence process chip uses ST company to produce is finished.This is a kind of special-purpose processing controls chip of assembling, and can export red, green, blue three look each point row-field scanning waveforms respectively, amplifies output RH, RV, GH, GV, BH, BV six road signals in advance through prime at last, is transferred to the deflecting coil that is installed on the projection tube.
The model of MCU control chip is TMP88PS38BN, and the model of logic chip is EPM3032A.TMP88PS38BN is that Toshiba produces, and it can be realized, and remote control receives, I
2C control etc., and then whole digital convergence system operated control, the adjustment data of the corresponding television system of preserving in E2PROM when each start are taken out and are sent into and make the effect that presents convergence on the video screen among the STV2050.The model of logic chip is EPM3032A.EPM3032A is for being one of the MAX3000A of altera corp series, 3.3V kernel.Its download cable of using is parallel cable, and length generally about 30CM, as extending, can use parallel port to expand.This IC maximum can be tolerated the input of 5.7V signal.The effect of logic chip EPM3032A is to carry out H synchronous head frequency division to trigger the CCD camera in real time, and after the exposure of CCD camera, the convergence grid image signal data that rear-projection TV set is shown is transferred to image pick-up card by IEEEE1394.
Industrial control computer is by the control port reads image data and carry out the position analysis of accurate convergence grid intersection subsequently, and the image of tonal gradation is through the binaryzation analysis.To carry out computing and adjustment through the convergence data of binaryzation analysis.
The function of EEPROM storage chip is the data of storage TMP88PS38BN, makes the function of MCU control chip more powerful.That is preserve the register value of STV2050 and assemble data value.
Rear Projection TV by three independently electron gun be incident upon on the speculum, invest screen by speculum again, thereby can form the video picture of super large picture.But also image-forming principle Just because of this causes between RGB three looks relatively difficulty of polymerization.The effect of manual digital convergence technology is exactly on the basis that digit convergence is adjusted automatically, and by modularization being assembled the manual control of control board, the picture intelligence that three independent electronic rifles are cast out coincides together, thereby produces picture effect true to nature.The manual digital convergence technology is a system, comprises software, hardware and correlation technique.Manually assemble operating personnel and the convergence module in the television set is controlled, and constantly adjust the convergence data according to the grid image effect in the television screen by remote control device.Adjusting range comprises different mode and different colours.
It is the core that manual digital is assembled Adjustment System that modularization is assembled control board, and it handles the operational order from operating personnel, and revises relevant convergence parameter.
The utility model provides the STV2050 of a kind of ST of being based upon company to assemble on the processing controls chip, combining image is handled the systemic engineering and technological research of science and electronic application and control, comprise hardware part and software part, adjustment precision height, the rectification ability is stronger, television set PT positional tolerance scope is bigger, and range of application is wider, and lower 16: 9 rear-projection TV set special digitals of application cost are assembled automatic regulating apparatus.It can be widely used in 16: in the automatic adjustment of 9CRT class rear-projection TV set.
Description of drawings
Fig. 1 is an entire block diagram of the present utility model.
Fig. 2 is the schematic diagram of its digital convergence control board.
Fig. 3 is the major part circuit diagram of digital convergence control board.
Fig. 4 is the convergence grid schematic diagram of 16: 9 rear-projection TV sets.
Embodiment
Embodiment 1.A kind of 16: 9 rear-projection TV set special digitals are assembled automatic regulating apparatus, as Fig. 1～shown in Figure 3.The CCD camera 3 and the image pick-up card 4 of the convergence grid image signal that it comprises the digital convergence control board 2 that is installed in the rear-projection TV set 1, the rear-projection TV set 1 that is used to take pictures shows.CCD camera 3 is connected with IEEE1394 connecting line body 5 with image pick-up card 4.Control interface 6 is installed on the image pick-up card 4, and control interface 6 is also connecting industrial control computer 7.Control interface 6 is being connected auto convergence and is adjusting interface 8 with 2 of digital convergence control board, carry out transfer of data.CCD camera 3 has 1300 * 1030 pixels.It is 32 pci bus control mode that image pick-up card 4 is selected data width for use.Digit convergence control chip on the digital convergence control board 2 is the STV2050 type.
Fig. 2 and shown in Figure 3, digital convergence control board comprises the analog quantity amplifying unit assembling control and treatment chip STV2050 (9), the MCU control chip (10) that is connected with STV2050 (9), the logic chip (11) that is connected with MCU control chip (10), be connected with STV2050 (9) and self calibration unit (12) and the eeprom memory chip (13) that is connected with MCU control chip (10).The model of MCU control chip (10) is TMP88PS38BN, and the model of logic chip (11) is EPM3032A.Clear pin and the annexation thereof of having represented each chip among the figure.
Fig. 4 shows the convergence grid schematic diagram of 16: 9 rear-projection TV sets.A is the viewable portion of television set among the figure, and has marked its concrete size.
Claims (2)
1. a 16:9 rear-projection TV set special digital is assembled automatic regulating apparatus, it comprises the digital convergence control board that is installed in the rear-projection TV set, be used to take pictures and assemble the CCD camera and the image pick-up card of grid image signal, the IEEE1394 connecting line body that connects CCD camera and image pick-up card, industrial control computer with the IMAQ card connection, the control interface that connects industrial control computer and digital convergence control board is characterized in that said digital convergence control board comprises convergence control and treatment chip STV2050, the MCU control chip that is connected with STV2050, the logic chip that is connected with the MCU control chip, the analog quantity amplifying unit that is connected with STV2050 and self calibration unit and the eeprom memory chip that is connected with the MCU control chip.
2. according to the described rear-projection TV set digit convergence of claim 1 automatic adjustment system, the model that it is characterized in that said MCU control chip is TMP88PS38BN, and the model of logic chip is EPM3032A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053349 CN2747812Y (en) | 2004-08-24 | 2004-08-24 | Special digital focusing auto regulator for 16:9 back projecting TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053349 CN2747812Y (en) | 2004-08-24 | 2004-08-24 | Special digital focusing auto regulator for 16:9 back projecting TV |
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| Publication Number | Publication Date |
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| CN2747812Y true CN2747812Y (en) | 2005-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420053349 Expired - Fee Related CN2747812Y (en) | 2004-08-24 | 2004-08-24 | Special digital focusing auto regulator for 16:9 back projecting TV |
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| CN (1) | CN2747812Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295289B (en) * | 2008-06-19 | 2010-04-07 | 上海交通大学 | High-speed data communication interface card of IEEE1394 bus |
| CN102118289A (en) * | 2010-12-02 | 2011-07-06 | 西北工业大学 | Real-time image segmentation processing system and high-speed intelligent unified bus interface method based on Institute of Electrical and Electronic Engineers (IEEE) 1394 interface |
-
2004
- 2004-08-24 CN CN 200420053349 patent/CN2747812Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295289B (en) * | 2008-06-19 | 2010-04-07 | 上海交通大学 | High-speed data communication interface card of IEEE1394 bus |
| CN102118289A (en) * | 2010-12-02 | 2011-07-06 | 西北工业大学 | Real-time image segmentation processing system and high-speed intelligent unified bus interface method based on Institute of Electrical and Electronic Engineers (IEEE) 1394 interface |
| CN102118289B (en) * | 2010-12-02 | 2013-04-17 | 西北工业大学 | Real-time image segmentation processing system and high-speed intelligent unified bus interface method based on Institute of Electrical and Electronic Engineers (IEEE) 1394 interface |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |