CN106341629A - Liquid crystal television mainboard ADC automatic correction system and method - Google Patents
Liquid crystal television mainboard ADC automatic correction system and method Download PDFInfo
- Publication number
- CN106341629A CN106341629A CN201610674314.9A CN201610674314A CN106341629A CN 106341629 A CN106341629 A CN 106341629A CN 201610674314 A CN201610674314 A CN 201610674314A CN 106341629 A CN106341629 A CN 106341629A
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- liquid crystal
- crystal television
- signal
- television mainboard
- adc
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a liquid crystal television mainboard ADC automatic correction system comprising an upper computer, a liquid crystal television mainboard, a signal generator, a mechanical arm, a thimble tool and a power supply system. The thimble tool is fixedly installed on the mechanical arm. The upper computer is connected with the mechanical arm and used for controlling rising or pressing of the mechanical arm. The thimble tool is connected with the liquid crystal television mainboard when the mechanical arm presses. The upper computer is connected with the thimble tool through a serial port and used for controlling the liquid crystal television mainboard to perform ADC correction. The power supply system is connected with the thimble tool and used for supplying power to ADC correction. The signal generator is connected with the thimble tool and used for providing a signal source to ADC correction. Rising and pressing of the thimble tool on the mechanical arm are controlled by the upper computer, and the power supply, YPBPR signals, VGA signals and serial port communication are provided to the liquid crystal television mainboard through the thimble tool with no requirement for manual wiring so that the production efficiency can be greatly enhanced.
Description
Technical field
The present invention relates to TV technology, more particularly to a kind of liquid crystal television mainboard adc automatic correction system and side
Method.
Background technology
With the raising of people's living standard, liquid crystal TV set becomes a kind of requisite electronics in people's life and disappears
Fei Pin.In the production process of LCD TV, ypbpr and two analog signal channels of vga need to carry out adc correction, and adc school
Just always all by the way of manual synchronizing, speed is slow and needs to put into substantial amounts of manpower, seriously constrains production efficiency.
At present, television set adc aligning step on a production line is as follows:
S1, entrance ypbpr passage；
S2, switching instrument are to 480p form: correction sd progressive signal；
S3, enter factory mode or be corrected by factory's remote control；
S4, switching instrument are to 1080p form: correction hd progressive signal；
S5, enter factory mode or be corrected by factory's remote control；
S6, switch to vga passage, repeat above s2～s5 step.
Existing adc aligning step is comparatively laborious, and also needs to manually insert power line, vga holding wire, ypbpr signal
Line, liquid crystal display screen wire, remote control and keypad connecting line.In addition it is also necessary to change liquid crystal television mainboard manually, need again after replacing
Insert various holding wires, speed is slow and easily malfunctions, and seriously constrains production efficiency.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, proposing a kind of liquid crystal television mainboard adc and automatically correcting system
System and method, by rise and the pressure of thimble frock on PC control mechanical arm, and are LCD TV master by thimble frock
Plate provides power supply, ypbpr signal, vga signal and serial communication, need not manually wiring, significantly improve production efficiency.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of liquid crystal television mainboard adc automatic correction system, including host computer, liquid crystal television mainboard and signal generator,
Mechanical arm, thimble frock and electric power system；Described thimble frock is fixedly mounted on described mechanical arm, described host computer with described
Mechanical arm is connected to control described mechanical arm to rise or depresses, described thimble frock and described liquid crystal during described mechanical arm pressure
TV motherboard is connected；Described host computer is connected to control described liquid crystal television mainboard to enter by serial ports with described thimble frock
Row adc corrects；Described electric power system and thimble frock are connected to correct for adc provides power supply；Described signal generator and top
Pin frock is connected to correct for adc provides signal source.
Preferably, described liquid crystal television mainboard includes some preset test points；Described thimble frock includes some signal tops
Pin；During described mechanical arm pressure, described signal thimble is connected with described preset test point.
Preferably, described liquid crystal television mainboard also includes some location holes；Described thimble frock also includes some positioning tops
Pin；During described mechanical arm pressure, described positioning thimble inserts described location hole.
Preferably, described signal thimble includes power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin；Described
Ypbpr interface that the power interface that preset test point includes being connected with described power pin is connected with described ypbpr signal pin and
Vga interface and the serial ports being connected with described rs 232 serial interface signal pin that described vga signal pin connects.
Preferably, described signal generator is included for providing the ypbpr signal source generator of ypbpr signal and being used for carrying
Vga signal source generator for vga signal.
Preferably, described power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin pass through standard signal line respectively
It is connected with described electric power system, ypbpr signal source generator, vga signal source generator and host computer.
Preferably, described location hole is fixed with the auxiliary positioning for assisting described positioning thimble to be accurately positioned
Device.
A kind of method that liquid crystal television mainboard adc corrects automatically, corrects system automatically based on described liquid crystal television mainboard adc
System, comprising:
After host computer monitors that liquid crystal television mainboard reaches correction station, control machinery arm is depressed；
The thimble frock being fixedly mounted with the robotic arm is passed through to position thimble positioning, and signal thimble and liquid crystal television mainboard normally connect
Connect；
Electric power system is powered to liquid crystal television mainboard by thimble frock, and after electricity on liquid crystal television mainboard, Auto Power On is simultaneously first
Beginningization, is instructed to host computer by serial ports transmitter ready after the completion of initialization；
Host computer receives ready instruction, and sends order control liquid crystal television mainboard correction adc by serial ports；
Liquid crystal television mainboard sends to correct and successfully instructs to host computer；
PC control mechanical arm rises, and monitors whether that needing correcting liquid crystal TV motherboard reaches correction station.
Preferably, host computer sends order control liquid crystal television mainboard correction adc by serial ports and includes:
Transmission switches to ypbpr channel instruction；
Receive handover success instruction；
Send detection ypbpr channel signal instruction；
Receipt signal normal instructions；
Send correction ypbpr passage adc instruction；
Receive to correct and successfully instruct；
Transmission switches to vga channel instruction；
Receive handover success instruction；
Send detection vga channel signal instruction；
Receipt signal normal instructions；
Send correction vga passage adc instruction；
Receive to correct and successfully instruct.
Preferably, when liquid crystal television mainboard receives and switches to ypbpr channel instruction, switching channel to ypbpr, ypbpr
Signal source generator exports ypbpr signal；Liquid crystal television mainboard receives when switching to vga channel instruction, and switching channel is extremely
Vga, vga signal source generator exports vga signal.
The technical scheme that the present invention provides has the benefit that
1st, the power supply of liquid crystal television mainboard needs, vision signal, serial communication are all provided by thimble frock, need not be artificial
Wiring, saves human cost, significantly improve production efficiency.
2nd, control liquid crystal television mainboard to correct adc by upper computer software, need not manually operate, save human cost, relatively
The earth improve production efficiency.
3rd, pass through mechanical arm and the cooperation of streamline conveyer belt, need not manually change plate, save human cost, significantly improve life
Produce efficiency.
4th, full-automatic produce, overall process can unmanned, save human cost.
Below in conjunction with drawings and Examples, the present invention is described in further detail, but a kind of LCD TV master of the present invention
Plate adc automatic correction system and method are not limited to embodiment.
Brief description
Fig. 1 is the entire block diagram of the liquid crystal television mainboard adc automatic correction system described in the present embodiment；
Fig. 2 is the thimble schematic diagram of the liquid crystal television mainboard adc automatic correction system described in the present embodiment；
Fig. 3 is the flow chart of the liquid crystal television mainboard adc auto-correction method described in the present embodiment；
Fig. 4 is the interaction figure of the host computer described in the present embodiment and liquid crystal television mainboard；
Fig. 5 is the control flow chart of the host computer described in the present embodiment；
Fig. 6 is the control flow chart of the liquid crystal television mainboard described in the present embodiment.
Specific embodiment
Referring to Fig. 1, liquid crystal television mainboard adc automatic correction system, a kind of liquid crystal television mainboard adc automatic correction system,
Including host computer 10, liquid crystal television mainboard 11 and signal generator, mechanical arm 15, thimble frock 16 and electric power system 14；Described
Thimble frock 16 is fixedly mounted on described mechanical arm 15, and it is described that described host computer 10 and described mechanical arm 15 are connected to control
Mechanical arm 15 rises or depresses, and during described mechanical arm 15 pressure, described thimble frock 16 is connected with described liquid crystal television mainboard 11
Connect；Described host computer 10 is connected to control described liquid crystal television mainboard 11 to carry out adc by serial ports with described thimble frock 16
Correction；Described electric power system 14 and thimble frock 16 are connected to correct for adc provides power supply；Described signal generator and thimble
Frock 16 is connected to correct for adc provides signal source.
Specifically, as shown in Fig. 2 described liquid crystal television mainboard 11 includes some preset test points 110；Described thimble frock
16 include some signal thimbles 160；Described signal thimble 160 and described preset test point 110 phase during described mechanical arm 15 pressure
Connect.
Specifically, described liquid crystal television mainboard 11 also includes some location holes 111；Described thimble frock 16 also includes some
Positioning thimble 161；When under described mechanical arm pressure 15, described positioning thimble 161 inserts described location hole 111.
Preferably, described signal thimble 160 includes power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin；Institute
State the ypbpr that the power interface that preset test point 110 includes being connected with described power pin is connected with described ypbpr signal pin to connect
Vga interface and the serial ports being connected with described rs 232 serial interface signal pin that mouth is connected with described vga signal pin.
Preferably, described signal generator is included for providing the ypbpr signal source generator 12 of ypbpr signal and being used for
The vga signal source generator 13 of vga signal is provided.
Preferably, described power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin pass through standard signal line respectively
It is connected with described electric power system, ypbpr signal source generator, vga signal source generator and host computer.
Preferably, described location hole 111 is fixed with the auxiliary for assisting described positioning thimble 161 to be accurately positioned
Locator 112.
As shown in figure 3, a kind of method that liquid crystal television mainboard adc corrects automatically, based on described liquid crystal television mainboard adc
Automatic correction system, comprising:
Step 301, after host computer monitors that liquid crystal television mainboard reaches correction station, control machinery arm is depressed；
Specifically, after host computer monitors that liquid crystal television mainboard reaches correction station, streamline conveyer belt is out of service, on
Position machine control machinery arm pressure.
Step 302, the thimble frock being fixedly mounted with the robotic arm is passed through to position thimble positioning, signal thimble and LCD TV master
Plate normally connects；
Step 303, electric power system is powered to liquid crystal television mainboard by thimble frock, after electricity on liquid crystal television mainboard automatically
Start shooting and initialize, instructed to host computer by serial ports transmitter ready after the completion of initialization；
Specifically, after signal thimble is normally connected with liquid crystal television mainboard, electric power system passes through thimble frock to liquid crystal electricity
Depending on main board power supply, Auto Power On after electricity on liquid crystal television mainboard, passes through serial ports after initialization finishes and sends " preparation to host computer
Ready " instruction.
Step 304, host computer receives ready instruction, and sends order control liquid crystal television mainboard correction by serial ports
adc；
Step 305, liquid crystal television mainboard sends to correct and successfully instructs to host computer；
Step 306, PC control mechanical arm rises, and monitors whether that needing correcting liquid crystal TV motherboard reaches correction work
Position.
Specifically, liquid crystal television mainboard correction adc is controlled to include as shown in figure 4, host computer sends order by serial ports:
Transmission switches to ypbpr channel instruction；
Receive handover success instruction；
Send detection ypbpr channel signal instruction；
Receipt signal normal instructions；
Send correction ypbpr passage adc instruction；
Receive to correct and successfully instruct；
Transmission switches to vga channel instruction；
Receive handover success instruction；
Send detection vga channel signal instruction；
Receipt signal normal instructions；
Send correction vga passage adc instruction；
Receive to correct and successfully instruct.
Further, the control flow of host computer and liquid crystal television mainboard will be described in detail respectively as follows.
It is illustrated in figure 5 the control flow chart of host computer, host computer is communicated with liquid crystal television mainboard by serial ports, concrete step
Suddenly as follows:
Step 501, upper computer software initializes；
Step 502, initialization completes, and control machinery arm is depressed；
Step 503, waits " ready " instruction that liquid crystal television mainboard sends；Judge whether wait is overtime, has not timed out,
Continue waiting for, if time-out display waits time-out, adc corrects unsuccessfully；
Step 504, receives " ready " instruction, sends liquid crystal television mainboard switching channel and instructs and receive handover success
Instruction；
Step 505, sends liquid crystal television mainboard sense channel signal instruction, and waits the signal of liquid crystal television mainboard transmission
Normal instructions；Judge whether wait is overtime, has not timed out, continues waiting for, time-out display wait is overtime, and adc corrects unsuccessfully；
Step 506, sends liquid crystal television mainboard correction adc instruction, receives correction result；Correct successfully execution step 507,
Otherwise re-calibrate；
Step 507, control machinery arm rises.
In above-mentioned steps, switching channel instruction inclusion switches to ypbpr passage and vga channel instruction；Sense channel signal
Instruction includes detecting that the instruction of ypbpr channel signal includes detecting ypbpr passage and the instruction of vga channel signal；Correction channel adc refers to
Order includes correcting ypbpr passage and vga passage adc instruction.Specifically, first complete the correction of ypbpr passage, then complete vga to lead to
The correction in road.
It is illustrated in figure 6 the control flow chart of liquid crystal television mainboard, liquid crystal television mainboard is communicated with host computer by serial ports,
After mechanical arm is depressed, on liquid crystal television mainboard, electricity, then starts shooting and initializes.After initialization terminates, inform that host computer is accurate
Standby ready, wait the order of host computer, the order according to receiving switches over passage, signal detection, corrects the actions such as adc, and
Return result to host computer.
Further, when liquid crystal television mainboard receives and switches to ypbpr channel instruction, switching channel to ypbpr,
Ypbpr signal source generator exports ypbpr signal；Liquid crystal television mainboard receives when switching to vga channel instruction, switching channel
To vga, vga signal source generator exports vga signal.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of liquid crystal television mainboard adc automatic correction system, including host computer, liquid crystal television mainboard and signal generator, its
It is characterised by, also includes: mechanical arm, thimble frock and electric power system；Described thimble frock is fixedly mounted on described mechanical arm,
Described host computer and described mechanical arm are connected to control described mechanical arm to rise or depress, described top during described mechanical arm pressure
Pin frock is connected with described liquid crystal television mainboard；Described host computer is connected to control institute by serial ports with described thimble frock
State liquid crystal television mainboard and carry out adc correction；Described electric power system and thimble frock are connected to correct for adc provides power supply；Institute
State signal generator to be connected to correct offer signal source for adc with thimble frock.
2. liquid crystal television mainboard adc automatic correction system according to claim 1 it is characterised in that:
Described liquid crystal television mainboard includes some preset test points；Described thimble frock includes some signal thimbles；Described machinery
During arm pressure, described signal thimble is connected with described preset test point.
3. liquid crystal television mainboard adc automatic correction system according to claim 2 it is characterised in that:
Described liquid crystal television mainboard also includes some location holes；Described thimble frock also includes some positioning thimbles；Described machinery
During arm pressure, described positioning thimble inserts described location hole.
4. the liquid crystal television mainboard adc automatic correction system according to Claims 2 or 3 it is characterised in that:
Described signal thimble includes power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin；Described preset test point bag
Include ypbpr interface and the described vga signal pin that the power interface being connected with described power pin is connected with described ypbpr signal pin
The vga interface connecting and the serial ports being connected with described rs 232 serial interface signal pin.
5. liquid crystal television mainboard adc automatic correction system according to claim 4 it is characterised in that:
Described signal generator is included for providing the ypbpr signal source generator of ypbpr signal and being used for providing vga signal
Vga signal source generator.
6. liquid crystal television mainboard adc automatic correction system according to claim 5 it is characterised in that:
Described power pin, ypbpr signal pin, vga signal pin and rs 232 serial interface signal pin pass through standard signal line and described power supply respectively
System, ypbpr signal source generator, vga signal source generator are connected with host computer.
7. liquid crystal television mainboard adc automatic correction system according to claim 3 it is characterised in that:
Auxiliary locator for assisting described positioning thimble to be accurately positioned is fixed with described location hole.
8. a kind of method that liquid crystal television mainboard adc corrects automatically is it is characterised in that include:
After host computer monitors that liquid crystal television mainboard reaches correction station, control machinery arm is depressed；
The thimble frock being fixedly mounted with the robotic arm is passed through to position thimble positioning, and signal thimble is normally connected with liquid crystal television mainboard；
Electric power system is powered to liquid crystal television mainboard by thimble frock, and after electricity on liquid crystal television mainboard, Auto Power On is simultaneously initial
Change, instructed to host computer by serial ports transmitter ready after the completion of initialization；
Host computer receives ready instruction, and sends order control liquid crystal television mainboard correction adc by serial ports；
Liquid crystal television mainboard sends to correct and successfully instructs to host computer；
PC control mechanical arm rises, and monitors whether that needing correcting liquid crystal TV motherboard reaches correction station.
9. the method that liquid crystal television mainboard adc according to claim 8 corrects automatically is it is characterised in that host computer passes through
Serial ports sends order and controls liquid crystal television mainboard correction adc to include:
Transmission switches to ypbpr channel instruction；
Receive handover success instruction；
Send detection ypbpr channel signal instruction；
Receipt signal normal instructions；
Send correction ypbpr passage adc instruction；
Receive to correct and successfully instruct；
Transmission switches to vga channel instruction；
Receive handover success instruction；
Send detection vga channel signal instruction；
Receipt signal normal instructions；
Send correction vga passage adc instruction；
Receive to correct and successfully instruct.
10. liquid crystal television mainboard adc according to claim 9 automatically correction method it is characterised in that: LCD TV master
Plate receives when switching to ypbpr channel instruction, switching channel to ypbpr, and ypbpr signal source generator exports ypbpr signal；
Liquid crystal television mainboard receives when switching to vga channel instruction, switching channel to vga, vga signal source generator output vga letter
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674314.9A CN106341629B (en) | 2016-08-16 | 2016-08-16 | Automatic correction system and method for ADC (analog to digital converter) of LCD (liquid crystal display television) main board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674314.9A CN106341629B (en) | 2016-08-16 | 2016-08-16 | Automatic correction system and method for ADC (analog to digital converter) of LCD (liquid crystal display television) main board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106341629A true CN106341629A (en) | 2017-01-18 |
| CN106341629B CN106341629B (en) | 2023-10-20 |
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|---|---|
| CN106341629B (en) | 2023-10-20 |
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