CN112653880B - Compatible automatic white balance adjustment system, device and adjustment method - Google Patents
Compatible automatic white balance adjustment system, device and adjustment method Download PDFInfo
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- CN112653880B CN112653880B CN202011249735.XA CN202011249735A CN112653880B CN 112653880 B CN112653880 B CN 112653880B CN 202011249735 A CN202011249735 A CN 202011249735A CN 112653880 B CN112653880 B CN 112653880B
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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
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30003—Arrangements for executing specific machine instructions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a compatible automatic white balance adjustment system, a device and an adjustment method, wherein the machine core mapping table is provided with a corresponding instruction line number, hexadecimal instructions and four functional modules, namely a start frame head position module, a signal source channel switching module, an offset value setting RGB, a GAIN value functional module and a frame tail verification module.
Description
Technical Field
The invention relates to a universal compatible automatic white balance adjustment system for television cores with different main chip schemes, and belongs to the technical field of liquid crystal display.
Background
With the development of intelligent televisions, consumers have higher and higher requirements on the image quality of the televisions, and before the televisions leave the factory, white balance needs to be adjusted, otherwise, the color of the televisions deviates, and the design requirements of products are difficult to meet. At present, the function instruction of the factory white balance adjustment system (upper computer) is single, and only a television with one movement can be subjected to white balance adjustment. When televisions with different cores are produced, new system instruction codes need to be re-adapted, system software is re-developed, the period is long, and the delivery time is influenced.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a compatible automatic white balance adjustment system, a device and an adjustment method, wherein the white balance of a lower computer (television) of different cores is adjusted by introducing mapping table instruction sets of the different cores into the upper computer (automatic white balance adjustment system) and selecting instruction sets of the corresponding cores. The automatic white balance adjustment system can read instruction sets of different television cores in the mapping table and automatically identify and execute instructions of corresponding television brands in the mapping table according to television core models of different schemes, so that the compatibility of the automatic white balance adjustment system of different cores is improved, and the factory production becomes quick and convenient.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme:
the compatible automatic white balance adjustment system comprises a core mapping table, wherein the core mapping table is provided with a corresponding instruction line number, hexadecimal instructions and four functional modules, the hexadecimal instructions in the core mapping table meet the requirements that when the television main board core software receives each instruction, the corresponding functional response is required, the instruction cannot be crashed when the instruction is repeatedly executed, and the response return value is required to be fixed; executing and judging whether a machine core mapping table instruction set exists or not when the class file is called, reading each row of hexadecimal instructions according to the row number of the machine core mapping table, assigning a read result to a defined map, responding each instruction of the hexadecimal instructions with a corresponding function when the map is executed once, transmitting the response result to a television through a communication interface, continuously changing the red, green and blue colors of a television screen and the color coordinate value and the brightness value read by an optical analyzer, changing the color into a white field finally, stopping adjusting the data, and writing the data into a main board machine core;
the protocol instruction format of the movement mapping table is defined as four functional modules, namely a start frame head module, a signal source channel switching module, an offset value setting RGB, a GAIN value functional module and a frame tail verification module, wherein the start frame head module represents televisions of different brands; the signal source channel switching module represents a switching signal source; setting an offset value of RGB and a GAIN value function module representing that the RGB value can be changed; the frame tail check bit module represents whether the data is normal or not;
according to the protocol instruction format of the movement mapping table, the movement mapping table is respectively provided with instruction line numbers of televisions of different brands.
The compatible automatic white balance adjustment device comprises an upper computer, wherein the upper computer is internally provided with the compatible automatic white balance adjustment system; the white balance adjustment system in the upper computer automatically identifies the head position number of the initial frame in the mapping table according to the command line number, determines the television brand needing to be adjusted, calls the selected brand television command set, then switches the signal source channel according to the command number of the signal source channel switching module, sets the RGB value to change the color temperature state, thus realizing the response of commands of different cores and finishing the white balance adjustment.
Preferably: the upper computer is a computer or a central control computer.
An adjusting method of a compatible automatic white balance adjusting device comprises the following steps:
step 1, checking the board card ports of a television, ensuring that the signal communication of each port is normal, performing factory aging and exit aging on the television, entering a white balance debugging mode, entering an adjustment information source channel, connecting each communication line, enabling a screen to generate 80% white field signals, and placing an optical analyzer probe in the middle position of the screen of the television;
step 2, setting a compatible automatic white balance adjustment system, selecting an instruction mapping table of a target prototype from a corresponding core instruction set, then respectively setting a tone reference coordinate value, each color temperature value, an RGB GAIN initial value and an RGB offset initial value of each color temperature of a television board card core, filling in a maximum brightness standard value, automatically detecting a communication interface between a television and a computer, connecting each communication line, enabling a port state to be OK, clicking a modification button, setting parameter precision, and respectively setting a reference error range, an 80% bright field error range and a 20% dark field error range;
and 4, starting to adjust the white balance data of the television according to the setting by the compatible automatic white balance adjustment system.
Preferably: in step 2, the bright field error range value is smaller than the reference error range value, and the dark field error range value is equal to the reference error range value.
Preferably: and 2, setting the reading time of the optical analyzer and the television receiving instruction time.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the movement schemes of different televisions, instruction sets of corresponding movements are imported, and instruction mapping tables are established to finish white balance adjustment of the corresponding movements. Therefore, the one-to-many universal compatibility of the adjustment system and a plurality of television mainboards can be realized by adding the instruction mapping table.
2. The automatic white balance adjustment system has the advantages of being high in automation degree, simple to operate, high in compatibility, capable of reducing adaptation of different cores of the automatic white balance adjustment system, reducing error rate of development programs, shortening delivery cycle of factory production and improving productivity of factories.
3. Through actual test of factory production, the white balance data adjusted by the system meets the requirements of customers, and the optical requirements of product design are met.
Drawings
Fig. 1 is a flow chart of a procedure for importing different movement scheme maps.
FIG. 2 is a schematic diagram of a mapping table executing instructions.
Fig. 3 is a flow chart of the white balance adjustment of the television of the present patent.
Detailed Description
The present invention is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the invention and not limiting of its scope, and various equivalent modifications to the invention will fall within the scope of the appended claims to the skilled person after reading the invention.
The compatible automatic white balance adjustment device comprises an upper computer, wherein the upper computer is internally provided with the compatible automatic white balance adjustment system; the compatible automatic white balance adjustment system comprises a movement mapping table, and a button option for importing a movement mapping table instruction set is added in the compatible automatic white balance adjustment system, and a program flow chart for importing different movement mapping tables is shown in fig. 1. Defining a macro in a main program of compatible automatic white balance adjustment, and establishing a core mapping table, wherein the core mapping table needs to have corresponding instruction line numbers, hexadecimal instructions and functional modules, the hexadecimal instructions in the core mapping table meet the requirements that when the core software of the television main board receives each instruction, the corresponding functional response is needed, the instruction cannot be crashed when repeatedly executed, and the response return value is required to be fixed; executing and judging whether a machine core mapping table instruction set exists or not when the class file is called, reading each row of hexadecimal instructions according to the row number of the machine core mapping table, assigning a read result to a defined map, responding each instruction of the hexadecimal instructions with a corresponding function when the map is executed once, transmitting the response result to a television through a communication interface, constantly changing the red, green and blue colors of the television screen and the color coordinate value and the brightness value read by an optical analyzer CA-310, changing the color into a white field finally, and stopping adjusting and writing the data into a main board machine core;
according to different brands of television cores, the protocol instruction format of the core mapping table is defined as four functional modules, namely a start frame head module, a signal source channel switching module, an offset value setting RGB, a GAIN value functional module and a frame tail verification module, wherein the start frame head module represents televisions of different brands, for example, 0X 55 02 is panda brand, 0X 55 03 is sea brand, 0X 55 04 is long rainbow brand and the like; the signal source channel switching module represents a switching signal source, such as panda HDMI channel AB 07 05, panda VGA channel AB 06 04, panda AV channel AB 08 06, etc.; the set RGB offset value, GAIN value function represents that the RGB values can be changed, such as 07C 0R G B to set RGB GAIN value and 07 02R G B to set RGB offset value; the frame tail check bit module represents whether the data is normal or not, and the data overflow can report error feedback, such as the data normal of the FD FE and the data overflow of the FC FE;
according to the protocol format, the movement mapping table is respectively provided with instruction line numbers of televisions of different brands. The white balance adjustment system in the upper computer automatically identifies the head position number of the initial frame in the mapping table according to the command line number, determines the television brand to be adjusted, calls the selected brand television command set, then switches the signal source channel according to the command number of the signal source channel switching module, and sets the RGB value to change the color temperature state, thus realizing the response of the commands of different cores, and the white balance adjustment is completed, as shown in the schematic diagram of the mapping table execution command in FIG. 2.
With reference to the flowchart of fig. 3, when the television is produced in the whole factory, the adjusting method of the automatic white balance adjusting system compatible with various television cores is as follows:
firstly, checking the board card ports of a television, ensuring that the signal communication of each port is normal, ageing and exiting the television in a factory, entering a white balance debugging mode by one key of a factory remote controller, entering an adjustment information source channel, connecting all communication lines, enabling 80% of white field signals to appear on a screen, and placing a CA310 probe of a color analyzer in the middle position of the television screen.
Secondly, setting compatible automatic white balance adjustment system software, selecting an instruction mapping table of a target model machine from a corresponding machine core instruction set, changing the right state of a button into a green font OK, then respectively setting a television board card machine core tone reference coordinate value, each color temperature value, an RGB GAIN initial value and an RGB offset initial value of each color temperature, filling in a maximum brightness standard value, automatically detecting a communication interface between a television and a computer, connecting each communication line, setting a port state as OK, clicking a modification button, setting parameter precision, respectively setting a reference error range, an 80% bright field error range and a 20% dark field error range, wherein the bright field error range value is smaller than the reference error range value, and the dark field error range value is equal to the reference error range value.
And finally, checking the compensation switch, and setting the u 'and v' error allowable ranges of the color coordinates under each color temperature state. After the parameter setting is finished, clicking a save button and starting the start to adjust the white balance data of the television, finishing the data adjustment, and displaying the state qualified.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (6)
1. A compatible automatic white balance adjustment system is characterized in that: the system comprises a core mapping table, wherein the core mapping table is provided with a corresponding instruction line number, hexadecimal instructions and four functional modules, the hexadecimal instructions in the core mapping table meet the requirements that when the core software of the television main board receives each instruction, the corresponding functional response is required, the instruction cannot be crashed when repeatedly executed, and the response return value is required to be fixed; executing and judging whether a machine core mapping table instruction set exists or not when the class file is called, reading each row of hexadecimal instructions according to the row number of the machine core mapping table, assigning a read result to a defined map, responding each instruction of the hexadecimal instructions with a corresponding function when the map is executed once, transmitting the response result to a television through a communication interface, continuously changing the red, green and blue colors of a television screen and the color coordinate value and the brightness value read by an optical analyzer, changing the color into a white field finally, stopping adjusting the data, and writing the data into a main board machine core;
the protocol instruction format of the movement mapping table is defined as four functional modules, namely a start frame head module, a signal source channel switching module, an offset value setting RGB, a GAIN value functional module and a frame tail check bit module, wherein the start frame head module represents televisions of different brands; the signal source channel switching module represents a switching signal source; setting an offset value of RGB and a GAIN value function module representing that the RGB value can be changed; the frame tail check bit module represents whether the data is normal or not;
according to the protocol instruction format of the movement mapping table, the movement mapping table is respectively provided with instruction line numbers of televisions of different brands;
and automatically identifying the head position number of the initial frame in the mapping table according to the command line number, determining the brand of the television to be adjusted, calling a selected brand television command set, switching the signal source channel according to the command number of the signal source channel switching module, setting RGB values to change the color temperature state, and realizing that commands of different cores are responded and the white balance adjustment is completed.
2. A compatible automatic white balance adjusting device is characterized in that: the system comprises an upper computer, wherein the upper computer is internally provided with the compatible automatic white balance adjustment system as claimed in claim 1; the white balance adjustment system in the upper computer automatically identifies the head position number of the initial frame in the mapping table according to the command line number, determines the television brand needing to be adjusted, calls the selected brand television command set, then switches the signal source channel according to the command number of the signal source channel switching module, sets the RGB value to change the color temperature state, thus realizing the response of commands of different cores and finishing the white balance adjustment.
3. The compatible automatic white balance adjustment device of claim 2, wherein: the upper computer is a computer or a central control computer.
4. An adjustment method based on the compatible automatic white balance adjustment device of claim 2, comprising the steps of:
step 1, checking the board card ports of a television, ensuring that the signal communication of each port is normal, performing factory aging and exit aging on the television, entering a white balance debugging mode, entering an adjustment information source channel, connecting each communication line, enabling a screen to generate 80% white field signals, and placing an optical analyzer probe in the middle position of the screen of the television;
step 2, setting a compatible automatic white balance adjustment system, selecting an instruction mapping table of a target prototype from a corresponding core instruction set, then respectively setting a tone reference coordinate value, each color temperature value, an RGB GAIN initial value and an RGB offset initial value of each color temperature of a television board card core, filling in a maximum brightness standard value, automatically detecting a communication interface between a television and a computer, connecting each communication line, enabling a port state to be OK, clicking a modification button, setting parameter precision, and respectively setting a reference error range, an 80% bright field error range and a 20% dark field error range;
step 3, setting an error allowable range of color coordinates in each color temperature state;
and 4, starting to adjust the white balance data of the television according to the setting by the compatible automatic white balance adjustment system.
5. The adjustment method according to claim 4, characterized in that: in step 2, the bright field error range value is smaller than the reference error range value, and the dark field error range value is equal to the reference error range value.
6. The adjustment method according to claim 5, characterized in that: and 2, setting the reading time of the optical analyzer and the television receiving instruction time.
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| CN201509279U (en) * | 2009-07-16 | 2010-06-16 | 厦门华侨电子股份有限公司 | Automatic adjustment system for white balance of TV |
| JP2013135369A (en) * | 2011-12-27 | 2013-07-08 | Sharp Corp | Setting method for white balance value, setting device for white balance value, and manufacturing method for television device |
| CN103414905B (en) * | 2013-08-08 | 2015-07-01 | 京东方科技集团股份有限公司 | White balance data adjusting method, device and system |
| CN106454306A (en) * | 2016-12-19 | 2017-02-22 | 四川长虹电器股份有限公司 | Automatic white balance debugging method at smart TV side |
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