CN104181373A - ShortingBar voltage output automation acquisition method and device of OLED - Google Patents
ShortingBar voltage output automation acquisition method and device of OLED Download PDFInfo
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- CN104181373A CN104181373A CN201410351782.3A CN201410351782A CN104181373A CN 104181373 A CN104181373 A CN 104181373A CN 201410351782 A CN201410351782 A CN 201410351782A CN 104181373 A CN104181373 A CN 104181373A
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- shortingbar
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- collection plate
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Abstract
The invention discloses a ShortingBar voltage output accuracy calibration automation acquisition method and device of an OLED. The device includes a ShortingBar, a PC, an acquisition plate and a voltage monitoring module. An input end of the ShortingBar is connected with the PC. Each output end of the ShortingBar is in one-to-one correspondence connection with a branch circuit of the acquisition plate. All branch circuits of the acquisition plate are connected with input ends of the voltage monitoring module. An output end of the voltage monitoring module is connected with the PC. The acquisition plate sequentially switches on a power supply for each branch circuit and when one branch circuit is switched on, all the resting branch circuits are switched off. The PC records voltage values acquired by the voltage monitoring module. The method and device are capable of solving a problem that test efficiency is low and data accuracy is not high because of a method of manual measurement, record and storage of test data can be solved.
Description
Technical field
The invention belongs to OLED testing apparatus technical field, refer to particularly ShortingBar Voltage-output automation collection method and the device of a kind of OLED.
Background technology
ShortingBar (probe short connection type signal testing machine) Voltage-output gatherer process is all to pass through manual type at present, use digital multimeter manually to gather interface output valve the record of each channel voltage, gatherer process relies on hand-held test pencil probe completely, then the contact that probe is touched on output interface completes.
But there are some defects in this existing testing scheme, is mainly manifested in the following aspects:
(1) inefficiency of data acquisition, the validity of institute's image data cannot be reviewed;
(2) process of artificially changing different output channels extremely bothers, and elapsed time, easily makes mistakes;
(3) artificial record test data, arranges institute's image data and expends the plenty of time, greatly reduces testing efficiency, adds people's kopiopia, does not get rid of and occurs misregistration phenomenon, causes the generation of invalid data.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide ShortingBar Voltage-output accuracy calibration automation collection method and the device of a kind of OLED, can solve because of artificial measurement, record, preserve test data mode, and cause the problem that testing efficiency is low and the data precision is not high.
For achieving the above object, the ShortingBar output voltage automation collection method of the designed OLED of the present invention, its special character is, comprises the steps:
1) output terminal of the input end of ShortingBar and voltage monitoring module is connected with PC respectively, and exports specific magnitude of voltage by each output terminal of described PC control ShortingBar;
2) make an output terminal conducting of input end and the ShortingBar of described voltage monitoring module;
3) make the input end of described voltage monitoring module gather the magnitude of voltage of described output terminal, and gathered magnitude of voltage is transferred to PC record;
4) make the shutoff that is connected between the input end of described voltage monitoring module and described output terminal, and make input end and the next output terminal conducting of described voltage monitoring module, implementation step 3);
5) repeat implementation step 4) until described PC records the output end voltage value of all ShortingBar, complete collection.
Preferably, described step 1) in also comprise: a branch road of each output terminal of described ShortingBar and collection plate is connected one to one, then the input end of voltage monitoring module is connected with all branch roads of described collection plate;
In described step 2, also comprise: send enabling signal by described PC to collection plate;
Described step 4) in also comprise: after described PC recording voltage value, control described collection plate and turn-off the branch road of described conducting, and make next branch road conducting.
Preferably, described step 1) described in specific magnitude of voltage be the output voltage values arranging according to OLED glass parameter.
Preferably, described step 5) complete after PC send end signal to collection plate, described collection plate receives the branch road that turn-offs all conductings after end signal.
A kind of device of the ShortingBar output voltage automation collection method for above-mentioned OLED, comprise ShortingBar, PC, collection plate and voltage monitoring module, the input end of described ShortingBar is connected with PC, each output terminal of described ShortingBar connects one to one with a branch road of collection plate respectively, all branch roads of described collection plate are connected with the input end of voltage monitoring module, the output terminal of described voltage monitoring module is connected with PC, described PC sends enabling signal and end signal to collection plate, and record the magnitude of voltage that described voltage monitoring module gathers, described collection plate is followed successively by each branch road turn-on power according to the enabling signal of PC, and when a branch road conducting, all the other all branch roads turn-off, described collection plate turn-offs all branch roads after receiving end signal.
Further, described collection plate comprises MCU and several branch roads, and described MCU receives conducting and the shutoff that described PC sends enabling signal and end signal and controls each branch road.
Further, several branch roads of described collection plate are realized by iic bus, I/O extender and relay, described iic bus is connected with MCU and I/O extender respectively, and described I/O extender has several I/O interfaces, and each I/O interface is connected with a relay.
Further, described I/O extender is the PCA9555D chip with 16 road I/O interfaces.
Further, described I/O extender is made up of three PCA9555D chips, has 48 road I/O interfaces.
Principle of work of the present invention is as follows: thus control the on off state of the level state pilot relay of each I/O interface in the I/O interface of I/O extender Zhong16 road by MCU, and use iic bus to connect the series connection of multiple I/O extenders to realize 16*N road independence I/O interface and form 16*N road branch road, the break-make of the on off state control 16*N road branch road by relay, voltage monitoring module is connected with collection plate output interface, gather the branch voltage value of current conducting, then realize the automatic record of output voltage values by PC.
Compared with prior art, beneficial effect of the present invention comprises:
(1) the ShortingBar Voltage-output collecting efficiency of lifting OLED: improved the artificial output channel of changing at present, artificially recorded the process of image data, arrangement image data, greatly improved data acquisition efficiency.The former manual calibration time is about 30min/ platform, and after use the present invention, the automatic calibration time is about 3min/ platform, and efficiency has improved 9 times.
(2) extensibility: by the cascade system of MCU, iic bus, can realize independently I/O interface of multichannel, and the output channel of institute's image data is when more, advantage is more obvious.
(3) low cost: process the problem of the ShortingBar voltage output data of automatic collection OLED by the matured product on market, obtained efficiency with lower cost and promoted greatly.
Brief description of the drawings
Fig. 1 is the structural representation of the ShortingBar output voltage automation collection device of OLED of the present invention.
In figure: 1.ShortingBar, 2.PC machine, 3. collection plate, 3-1.MCU, 3-2.I/O extender, 3-3. relay, 3-4.IIC bus, 4. voltage monitoring module.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the ShortingBar output voltage automation collection device of OLED of the present invention, comprises ShortingBar1, PC 2, collection plate 3 and voltage monitoring module 4.The input end of ShortingBar1 is connected with PC 2, each output terminal of ShortingBar1 connects one to one with a branch road of collection plate 3 respectively, all branch roads of collection plate 3 are connected with the input end of voltage monitoring module 4, the output terminal of voltage monitoring module 4 is connected with PC 2, PC 2 sends enabling signal and end signal to collection plate 3, and the magnitude of voltage that gathers of recording voltage monitoring module 4, collection plate 3 is followed successively by each branch road turn-on power according to the enabling signal of PC 2, and when a branch road conducting, all the other all branch roads turn-off, collection plate 3 turn-offs all branch roads after receiving end signal.Collection plate 3 comprises MCU3-1 and several branch roads, and MCU3-1 receives conducting and the shutoff that PC 2 sends enabling signal and end signal and controls each branch road.
Wherein, the MCU3-1 of collection plate 3 adopts STM32F103VCT6 chip, and MCU3-1 communicates by letter with PC 2 by the serial line interface of chip; The Jtag debug port of chip is as program upgrade and debugging; The TTL interface of chip can receive and send data as user interface.MCU3-1 is connected with group of four figures pipe, shows as passage switching state.MCU3-1 is also connected with RTC, and RTC, as a timer independently, realizes system reset or wakes up from standby mode, and RTC arranges and the time can remain unchanged.
Several branch roads of collection plate 3 are realized by iic bus 3-4, I/O extender 3-2 and relay 3-3, iic bus 3-4 is connected with MCU3-1 and I/O extender 3-2 respectively, I/O extender 3-2 has several I/O interfaces, and each I/O interface is connected with a relay 3-3.
I/O extender 3-2 adopts PCA9555D chip, and PCA9555D chip is long-range 16 I2C and the SMBus I/O extender with interrupt output and configuration register.Three PCA9555D chips of the upper connection of iic bus 3-4 form 48 tunnel independence I/O interfaces, and Ji48 road is voltage acquisition branch road independently.
ShortingBar1 is connected by serial line interface with PC 2.Voltage monitoring module 4 can adopt high accuracy number multimeter Aglient34401a.
The acquisition method of the ShortingBar output voltage automation collection device of above-mentioned OLED forms 48 tunnel independence I/O interfaces as example taking three PCA9555D chips, automatically gathers the magnitude of voltage of 48 ShortingBar output terminals:
1) by the output terminal of the input end of ShortingBar1 and voltage monitoring module 4 respectively with PC 2) be connected, and export specific magnitude of voltage by 48 output terminals that PC 2 is controlled ShortingBar1, specific magnitude of voltage is 48 corresponding output voltage values of output terminal that arrange according to OLED glass parameter.48 output terminals of ShortingBar1 and collection plate 3 48 road branch roads are connected one to one, then the input end of voltage monitoring module 4 is connected with all branch roads of collection plate 3.
2) send enabling signal by PC 2 to collection plate 3, collection plate 3 receives after enabling signal first branch road in 48 branch roads of conducting, the input end of voltage monitoring module 4 with
First output terminal conducting of ShortingBar1.
3) make the input end of voltage monitoring module 4 gather the magnitude of voltage of first output terminal, and gathered magnitude of voltage is transferred to PC 2 records; The magnitude of voltage that PC 2 records is corresponding one by one with the ShortingBar1 output terminal of current conducting.
4) PC 2 records and controls collection plate 3 after the magnitude of voltage of first output terminal and turn-off the first branch road, and make the second branch road conducting, between the input end of voltage monitoring module 4 and ShortingBar1 the first output terminal, be connected shutoff, between the input end of voltage monitoring module 4 and ShortingBar1 the second output terminal, be connected conducting, to the second output terminal implementation step 3).
5) repeat implementation step 4, PC is recorded the magnitude of voltage of the second output terminal to the 48 output terminals successively.PC 2 sends end signal to collection plate 3, and collection plate 3 receives the branch road that turn-offs all conductings after end signal, completes collection.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also design some improvement, and these improve and also should be considered as protection scope of the present invention.
Claims (9)
1. a ShortingBar output voltage automation collection method of OLED, is characterized in that comprising the steps:
1) output terminal of the input end of ShortingBar (1) and voltage monitoring module (4) is connected with PC (2) respectively, and exports specific magnitude of voltage by each output terminal of described PC (2) control ShortingBar (1);
2) make an output terminal conducting of input end and the ShortingBar (1) of described voltage monitoring module (4);
3) make the input end of described voltage monitoring module (4) gather the magnitude of voltage of described output terminal, and gathered magnitude of voltage is transferred to PC (2) record;
4) make the shutoff that is connected between the input end of described voltage monitoring module (4) and described output terminal, and make input end and the next output terminal conducting of described voltage monitoring module (4), implementation step 3);
5) repeat implementation step 4) until described PC (2) records the output end voltage value of all ShortingBar (1), complete collection.
2. the ShortingBar output voltage automation collection method of OLED according to claim 1, it is characterized in that: described step 1) in also comprise: a branch road of each output terminal of described ShortingBar (1) and collection plate (3) is connected one to one, then the input end of voltage monitoring module (4) is connected with all branch roads of described collection plate (3);
In described step 2, also comprise: send enabling signal by described PC (2) to collection plate (3);
Described step 4) in also comprise: after described PC (2) recording voltage value, control described collection plate (5) and turn-off the branch road of described conducting, and make next branch road conducting.
3. the ShortingBar output voltage automation collection method of OLED according to claim 1, is characterized in that: described step 1) described in specific magnitude of voltage be the output voltage values arranging according to OLED glass parameter.
4. the ShortingBar output voltage automation collection method of OLED according to claim 2, it is characterized in that: described step 5) complete after PC (2) send end signal to collection plate (3), described collection plate (3) receives the branch road that turn-offs all conductings after end signal.
5. the device for the ShortingBar output voltage automation collection method of OLED claimed in claim 1, it is characterized in that: comprise ShortingBar (1), PC (2), collection plate (3) and voltage monitoring module (4), the input end of described ShortingBar (1) is connected with PC (2), each output terminal of described ShortingBar (1) connects one to one with a branch road of collection plate (3) respectively, all branch roads of described collection plate (3) are connected with the input end of voltage monitoring module (4), the output terminal of described voltage monitoring module (4) is connected with PC (2), described PC (2) sends enabling signal and end signal to collection plate (3), and record described voltage monitoring module (4) gather magnitude of voltage, described collection plate (3) is followed successively by each branch road turn-on power according to the enabling signal of PC (2), and when a branch road conducting, all the other all branch roads turn-off, described collection plate (3) turn-offs all branch roads after receiving end signal.
6. the ShortingBar output voltage automation collection device of OLED according to claim 5, it is characterized in that: described collection plate (3) comprises MCU (3-1) and several branch roads, described MCU (3-1) receives conducting and the shutoff that described PC (2) sends enabling signal and end signal and controls each branch road.
7. the ShortingBar output voltage automation collection device of OLED according to claim 6, it is characterized in that: several branch roads of described collection plate (3) are realized by iic bus (3-4), I/O extender (3-2) and relay (3-3), described iic bus (3-4) is connected with MCU (3-1) and I/O extender (3-2) respectively, described I/O extender (3-2) has several I/O interfaces, and each I/O interface is connected with a relay (3-3).
8. the ShortingBar output voltage automation collection device of OLED according to claim 7, is characterized in that: described I/O extender (3-2) is for having the PCA9555D chip of 16 road I/O interfaces.
9. the ShortingBar output voltage automation collection device of OLED according to claim 8, is characterized in that: described I/O extender (3-2) is made up of three PCA9555D chips, has 48 road I/O interfaces.
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| CN201410351782.3A CN104181373B (en) | 2014-07-23 | 2014-07-23 | OLED ShortingBar voltage output automation collection method and devices |
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| CN201410351782.3A CN104181373B (en) | 2014-07-23 | 2014-07-23 | OLED ShortingBar voltage output automation collection method and devices |
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Citations (6)
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| US5081687A (en) * | 1990-11-30 | 1992-01-14 | Photon Dynamics, Inc. | Method and apparatus for testing LCD panel array prior to shorting bar removal |
| JPH08105926A (en) * | 1994-10-05 | 1996-04-23 | Fujitsu Ltd | Wiring pattern inspection device, and wiring pattern inspection method |
| CN1480741A (en) * | 2002-09-05 | 2004-03-10 | 上海神力科技有限公司 | Device for monitoring operating voltage of each cell in fuel cells and making safety alarming as well as its method |
| JP4244971B2 (en) * | 2005-07-27 | 2009-03-25 | 株式会社デンソーウェーブ | Robot controller |
| TW201027099A (en) * | 2009-01-05 | 2010-07-16 | Chunghwa Picture Tubes Ltd | Method of testing display panel |
| CN101958092A (en) * | 2009-07-17 | 2011-01-26 | 友达光电(厦门)有限公司 | Test conversion module and display screen test method |
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2014
- 2014-07-23 CN CN201410351782.3A patent/CN104181373B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5081687A (en) * | 1990-11-30 | 1992-01-14 | Photon Dynamics, Inc. | Method and apparatus for testing LCD panel array prior to shorting bar removal |
| JPH08105926A (en) * | 1994-10-05 | 1996-04-23 | Fujitsu Ltd | Wiring pattern inspection device, and wiring pattern inspection method |
| CN1480741A (en) * | 2002-09-05 | 2004-03-10 | 上海神力科技有限公司 | Device for monitoring operating voltage of each cell in fuel cells and making safety alarming as well as its method |
| JP4244971B2 (en) * | 2005-07-27 | 2009-03-25 | 株式会社デンソーウェーブ | Robot controller |
| TW201027099A (en) * | 2009-01-05 | 2010-07-16 | Chunghwa Picture Tubes Ltd | Method of testing display panel |
| CN101958092A (en) * | 2009-07-17 | 2011-01-26 | 友达光电(厦门)有限公司 | Test conversion module and display screen test method |
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Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee before: Wuhan Jingce Electronic Technology Co., Ltd. |
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