CN105336287A - Testing method, testing device and testing system of display screen - Google Patents
Testing method, testing device and testing system of display screen Download PDFInfo
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Abstract
The invention discloses a testing method, a testing device and a testing system of a display screen, wherein the method comprises the following steps: acquiring standard parameters of a plurality of parts of the to-be-tested display screen by virtue of a display screen tester; collecting test data of the plurality of the parts of the to-be-tested display screen by virtue of the display screen tester, wherein the test data include a standard voltage value of the to-be-tested display screen, a level value, a current value and a decoding result of an infrared receiving head of the to-be-tested display screen, an LED current value of the to-be-tested display screen and a current value of a nixie tube; and respectively comparing each of the test data with the corresponding standard parameters by virtue of the display screen tester, so that a test result is obtained. The testing method disclosed by the invention can solve the problem of a display screen testing method in the related prior art which is low in testing efficiency, so that an effect of improving the display screen testing efficiency is improved.
Description
Technical field
The present invention relates to field tests, in particular to a kind of method of testing of display screen, device and system.
Background technology
Current split air conditioner bar-indicators test still relies on checker manual testing to judge, the reception fault etc. that test needs the project of artificial judgment to have facial mask defect, aluminium foil defect, functional fault to cause, artificial long-time test is very easy to cause visual fatigue, and the more difficult grasp of some aesthetic appearance problem yardsticks, easily occurs undetected.As can be seen here, existing artificial judgment mode has certain influence to quality control.
At present for problem low to the method for testing testing efficiency of display screen in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
For problem low to the method for testing testing efficiency of display screen in correlation technique, not yet propose effective solution at present, for this reason, fundamental purpose of the present invention is to provide a kind of method of testing of display screen, device and system, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of method of testing of display screen, the method comprises: display screen tester obtains the canonical parameter of multiple parts of display screen to be tested; Display screen tester gathers the test data of multiple parts of display screen to be tested, and test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron; Each test data is compared with corresponding canonical parameter by display screen tester respectively, obtains test result.
To achieve these goals, according to a further aspect in the invention, provide a kind of proving installation of display screen, this device comprises: acquisition module, for obtaining the canonical parameter of multiple parts of display screen to be tested; Acquisition module, for gathering the test data of multiple parts of display screen to be tested, test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron; Test module, for each test data being compared respectively with corresponding canonical parameter, obtains test result.
To achieve these goals, according to a further aspect in the invention, provide a kind of test macro of display screen, this system comprises: display screen to be tested; Display screen tester, being connected with display screen to be tested, for gathering the test data of multiple parts of display screen to be tested, and obtaining the canonical parameter of multiple parts of display screen to be tested, each test data is compared respectively with corresponding canonical parameter, obtains test result; Wherein, display screen tester test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron.
By the present invention, display screen tester is adopted to obtain the canonical parameter of multiple parts of display screen to be tested; Display screen tester gathers the test data of multiple parts of display screen to be tested, and test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron; Each test data is compared with corresponding canonical parameter by display screen tester respectively, obtain test result, solve problem low to the method for testing testing efficiency of display screen in related art, and then achieve the effect of the testing efficiency improving test display screen.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the test macro of display screen according to the embodiment of the present invention one;
Fig. 2 is the circuit diagram according to the FLASH memory in the test macro of the display screen of the embodiment of the present invention one;
Fig. 3 is the circuit diagram according to the eeprom memory in the test macro of the display screen of the embodiment of the present invention one;
Fig. 4 is the circuit diagram gathering reference voltage source according to the high-precision AD in the test macro of the display screen of the embodiment of the present invention one;
Fig. 5 is the circuit diagram according to the infrared integrated Receiver current detection circuit in the test macro of the display screen of the embodiment of the present invention one;
Fig. 6 is the circuit diagram of the telecommunication circuit according to the external output in the test macro of the display screen of the embodiment of the present invention one;
Fig. 7 is the process flow diagram of the method for testing of display screen according to the embodiment of the present invention two; And
Fig. 8 is the structural representation of the proving installation of display screen according to the embodiment of the present invention three.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment one:
Fig. 1 is the structural representation of the test macro of display screen according to the embodiment of the present invention.As shown in Figure 1, the test macro of this display screen can comprise: display screen tester 10 and display screen 12 to be tested.
Wherein, display screen tester 10, be connected with display screen 10 to be tested, for gathering the test data of multiple parts of display screen to be tested, and obtain the canonical parameter of multiple parts of display screen to be tested, each test data is compared respectively with corresponding canonical parameter, obtains test result; Wherein, display screen tester test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron.
The test macro that the above embodiments of the present application provide, a kind of automatic testing tool is provided by display screen tester, this tester is by the test data of collecting test object, then test data and the canonical parameter learnt are compared, thus determine that whether display screen to be tested is qualified.This invention may be used for the automatic test of air-conditioning display, relative to artificial judgment test, improves testing reliability and testing efficiency, and then can improve quality inspection, reduce failure rate after sale.
Display screen tester 10 in the above embodiments of the present application can comprise: storer 101, for after the learning functionality starting display screen tester, preserve the canonical parameter obtained by the supplemental characteristic of multiple parts of collection conventional display, wherein, canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.
Preferably, in the above embodiments of the present application, before the learning functionality starting display screen tester, following function can also be performed: upper limit float value and lower limit float value that canonical parameter is set, canonical parameter is regulated according to upper limit float value or lower limit float value.
Concrete, learn button on the display screen that can be provided by click display screen tester triggers learning functionality, now display screen tester is connected to a conventional display, each parameters of operating part data of this display screen can as the canonical parameter of other display screen to be tested, after conventional display being connected to display screen tester and click learn button, display screen tester will read corresponding supplemental characteristic, and the supplemental characteristic of each parts is saved in storer as canonical parameter, wait for that governor circuit calls.
It should be noted that herein, the display screen that above-mentioned display screen tester provides provide not only learn button, what can also show each canonical parameter arranges content, content is set directly can carries out manual modification on a display screen of this canonical parameter, in addition, additionally provide input frame to input upper limit float value and the lower limit float value of canonical parameter for tester, make after display screen tester learns canonical parameter, tester is adjusted the canonical parameter got by the upper limit float value of established standards parameter and lower limit float value, such as, standard value is floated 10% or float downward 10%.
Shown in composition graphs 2 and Fig. 3, the above-mentioned storer of the application can be FLASH memory or eeprom memory, and above-mentioned storer is used for storage area bound parameter and model except storing bound memory circuit.
In a kind of embodiment that the application provides, the circuit of above-mentioned display screen tester 10 can comprise following all parts: governor circuit 103, and the reference voltage Acquisition Circuit 105, infrared receiving terminal testing circuit 107, LED Acquisition Circuit 109 and the charactron Acquisition Circuit 121 that are connected respectively with governor circuit 103.
Wherein, the governor circuit that the application provides can be ARM governor circuit, this ARM governor circuit can be model: the display governor circuit of STC15F2K60S2, reset can be comprised, the circuit such as oikocryst shakes, real-time clock, be mainly used in color LCD screen to drive, touch control, part model stores, the functions such as communication.
Reference voltage Acquisition Circuit, for gathering the reference voltage value of display screen to be tested.The reference voltage Acquisition Circuit that the application provides can be high-precision AD collection reference voltage source as shown in Figure 4.
Concrete, the reference voltage value of display screen to be tested and standard voltage value compare by governor circuit, if the difference of reference voltage value and standard voltage value is within the first preset range, then test result is that display screen to be tested is in open-circuit condition, otherwise test result is display screen to be tested is in short-circuit condition.
Infrared receiving terminal testing circuit, for gathering low and high level value and the high/low currents value of the infrared receiving terminal of display screen to be tested.
Above-mentioned infrared receiving terminal testing circuit can be infrared integrated Receiver current detection circuit as shown in Figure 5, governor circuit is by gathering the loop power consumption electric current of infrared integrated Receiver, output voltage amplitude, decoded result, simultaneously can the bound scope that arranges of incorporating parametric, differentiate the duty of infrared integrated Receiver.
Concrete, governor circuit is compared with the standard low and high level value of infrared receiving terminal and standard high/low currents value respectively by the low and high level value of the infrared receiving terminal by display screen to be tested and high/low currents value, if the level difference value of low and high level value and standard low and high level value is within the second preset range, and the current differential of high/low currents value and standard high/low currents value is within the 3rd preset range, then test result is verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise test result is verify that the infrared receiving terminal of display screen to be tested exists fault.
Preferably, display screen tester can also comprise: drive unit, launches the infrared receiving terminal of infrared remote instruction to display screen to be tested for driving telepilot.
Therefore, governor circuit is also for after receiving infrared receiving terminal and forwarding the infrared remote instruction come, infrared remote instruction is decoded, the decoded result obtained and canonical solution code value are compared, if decoded result is decoded identical with standard, then verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of display screen to be tested exists fault.
Telepilot in the application's such scheme can be decay telepilot, display screen tester drives decay telepilot to complete automatic transmitting by automatic testing tool, namely display screen tester simulation triggering command (namely simulating the remote control buttons manually pressing telepilot) is to telepilot, telepilot generates infrared remote instruction (such as: IX10010001), and infrared remote instruction is returned to governor circuit, decode for governor circuit, and the decoded result obtained and canonical solution code value are compared.Thus furthermore achieved that auto testing instrument passes through to calculate Receiver power consumption electric current, output voltage amplitude, whether the parameters such as decoding carry out comprehensive descision accepting header qualified.
It can thus be appreciated that, judging whether infrared receiving terminal is in normal duty and can confirms with reference to the following any one or more parameter of infrared receiving terminal: the decoded result of low and high level value, high/low currents value and infrared remote instruction.
LED Acquisition Circuit, for gathering the LED current of display screen to be tested.
Concrete, the LED electrical flow valuve of display screen to be tested and standard LED electrical flow valuve can compare by governor circuit, if the difference of LED electrical flow valuve and standard LED electrical flow valuve is within the 4th preset range, then test result is that the LED particle of display screen to be tested is in normal operating conditions, otherwise the LED particle that test result is display screen to be tested exists fault.
Charactron Acquisition Circuit, for gathering the current value of the charactron of display screen to be tested.
Concrete, the current value of the charactron of display screen to be tested and standard current value can compare by governor circuit, if the difference of the standard current value of charactron and standard current value is within the 5th preset range, then test result is that the charactron of display screen to be tested is in normal operating conditions, otherwise the charactron that test result is display screen to be tested exists fault.
In summary, this application provides a kind of after the scheme that the research staff such as aggregation routine person, structural engineer, hardware circuit slip-stick artist determine, completed the making of checkout equipment hardware and software by display screen tester.Achieve following function: utilize governor circuit in display screen tester as single-chip microcomputer, the voltage rreturn value gathered, that measures display board opens short-circuit state, and the low and high level value of infrared receiving terminal gathered according to single-chip microcomputer and current value, judge the whether normal of infrared receiving terminal.The LED gathered according to single-chip microcomputer and the current value of charactron, judge whether LED and charactron normally work.Cylinder is adopted automatically to pull out line after test passes.
Preferably, display screen tester in the above embodiments of the present application is connected with display screen to be tested by test fixture, wherein, test fixture comprises: at least one group of display screen connecting interface and test interface, wherein, the connecting line access display screen connecting interface of display screen to be tested, the test connecting line access test interface of display screen tester, lays splicing ear between display screen connecting interface and test interface; Electricity cylinder, is connected with splicing ear, for after the end test instruction receiving display screen tester, drives electric cylinder to be separated with display screen connecting interface or test interface by splicing ear.
Such scheme achieves one and automatically pulls out line mechanism, eliminates the action of manually pulling out line, improper for preventing checker from pulling out line, the man-made fault such as cause that terminal removal and line are pulled apart, and adds and automatically pulls out line function, implant small electrical cylinder in frock in system.After comprehensive tester completes test, send instruction, now electric cylinder action retracted downward, whole terminal is separated with frock by power vertically downward, realizes automatically pulling out line.
It should be noted that, the telecommunication circuit of the external output that the display screen tester in the above embodiments of the present application provides can adopt device as shown in Figure 6 (part type outside is not reserved) herein.
It should be noted that, the application develops a kind of display auto testing instrument herein, and this equipment can differentiate that whether display is qualified at intelligent measure in 2-3 second, and shows corresponding test value in real time by liquid crystal display, and partial function is as follows:
1, the power consumption electric current of display board LED and charactron is automatically measured;
2, be with learning functionality, the measured parameter of different display board can be learnt, the display board of different model can be stored;
3, with beginning road measuring ability, after plugging display board, automatically switch road situation between each line is detected;
4, test passes rear drive is automatically pulled out line structure realization and is automatically pulled out line;
5, the power consumption electric current of Receiver is measured, the amplitude of output signal, the correctness of output encoder;
6,3.7 cun of color touch liquid crystal display display test modes and test result.
Embodiment two:
Fig. 7 is the process flow diagram of the method for testing of display screen according to the embodiment of the present invention two.The method comprises the steps: as shown in Figure 7
Step S20, display screen tester obtains the canonical parameter of multiple parts of display screen to be tested.
Step S22, display screen tester gathers the test data of multiple parts of display screen to be tested, and test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron.
Step S24, each test data is compared with corresponding canonical parameter by display screen tester respectively, obtains test result.
The method of testing that the above embodiments of the present application provide, a kind of automatic testing tool is provided by display screen tester, this tester is by the test data of collecting test object, then test data and the canonical parameter learnt are compared, thus determine that whether display screen to be tested is qualified.This invention may be used for the automatic test of air-conditioning display, relative to artificial judgment test, improves testing reliability and testing efficiency, and then can improve quality inspection, reduce failure rate after sale.
In the above embodiments of the present application, the step that display screen tester obtains the canonical parameter of multiple parts of display screen to be tested can comprise: conventional display and display screen tester are communicated to connect; Start the learning functionality of display screen tester, gather the supplemental characteristic of multiple parts of conventional display as canonical parameter, wherein, canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.Above-mentioned canonical parameter can store in memory.
Preferably, in the scheme that the application realizes, before the learning functionality starting display screen tester, method can also comprise: the upper limit float value and the lower limit float value that arrange canonical parameter, and canonical parameter is regulated according to upper limit float value or lower limit float value.
Concrete, learn button on the display screen that can be provided by click display screen tester triggers learning functionality, now display screen tester is connected to a conventional display, each parameters of operating part data of this display screen can as the canonical parameter of other display screen to be tested, after conventional display being connected to display screen tester and click learn button, display screen tester will read corresponding supplemental characteristic, and the supplemental characteristic of each parts is saved in storer as canonical parameter, wait for that governor circuit calls.
It should be noted that herein, the display screen that above-mentioned display screen tester provides provide not only learn button, what can also show each canonical parameter arranges content, content is set directly can carries out manual modification on a display screen of this canonical parameter, in addition, additionally provide input frame to input upper limit float value and the lower limit float value of canonical parameter for tester, make after display screen tester learns canonical parameter, tester is adjusted the canonical parameter got by the upper limit float value of established standards parameter and lower limit float value, such as, standard value is floated 10% or float downward 10%.
In the above embodiments of the present application, each test data is compared with corresponding canonical parameter by display screen tester respectively, and the step obtaining test result comprises following any one or more scheme:
Scheme one: the reference voltage value of display screen to be tested and standard voltage value are compared, if the difference of reference voltage value and standard voltage value is within the first preset range, then test result is that display screen to be tested is in open-circuit condition, otherwise test result is display screen to be tested is in short-circuit condition.
Scheme two: the low and high level value of the infrared receiving terminal of display screen to be tested and high/low currents value are compared with the standard low and high level value of infrared receiving terminal and standard high/low currents value respectively, if the level difference value of low and high level value and standard low and high level value is within the second preset range, and the current differential of high/low currents value and standard high/low currents value is within the 3rd preset range, then test result is verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise test result is verify that the infrared receiving terminal of display screen to be tested exists fault.
Preferably, in a kind of embodiment that the application provides, before verifying that the infrared receiving terminal of display screen to be tested is in normal operating conditions, following steps can also be performed: display screen tester drives telepilot to launch the infrared receiving terminal of infrared remote instruction to display screen to be tested; Infrared remote instruction is transmitted to the governor circuit of display screen tester by infrared receiving terminal; Governor circuit is decoded to infrared remote instruction, the decoded result obtained and canonical solution code value are compared, if decoded result is decoded identical with standard, then verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of display screen to be tested exists fault.
Telepilot in the application's such scheme can be decay telepilot, display screen tester drives decay telepilot to complete automatic transmitting by automatic testing tool, namely display screen tester simulation triggering command (namely simulating the remote control buttons manually pressing telepilot) is to telepilot, telepilot generates infrared remote instruction (such as: IX10010001), and infrared remote instruction is returned to governor circuit, decode for governor circuit, and the decoded result obtained and canonical solution code value are compared.Thus furthermore achieved that auto testing instrument passes through to calculate Receiver power consumption electric current, output voltage amplitude, whether the parameters such as decoding carry out comprehensive descision accepting header qualified.
It can thus be appreciated that, judging whether infrared receiving terminal is in normal duty and can confirms with reference to the following any one or more parameter of infrared receiving terminal: the decoded result of low and high level value, high/low currents value and infrared remote instruction.
Scheme three: the LED electrical flow valuve of display screen to be tested and standard LED electrical flow valuve are compared, if the difference of LED electrical flow valuve and standard LED electrical flow valuve is within the 4th preset range, then test result is that the LED particle of display screen to be tested is in normal operating conditions, otherwise the LED particle that test result is display screen to be tested exists fault.
Scheme four: the current value of the charactron of display screen to be tested and standard current value are compared, if the difference of the standard current value of charactron and standard current value is within the 5th preset range, then test result is that the charactron of display screen to be tested is in normal operating conditions, otherwise the charactron that test result is display screen to be tested exists fault.
In summary, this application provides a kind of after the scheme that the research staff such as aggregation routine person, structural engineer, hardware circuit slip-stick artist determine, completed the making of checkout equipment hardware and software by display screen tester.Achieve following function: utilize governor circuit in display screen tester as single-chip microcomputer, the voltage rreturn value gathered, that measures display board opens short-circuit state, and the low and high level value of infrared receiving terminal gathered according to single-chip microcomputer and current value, judge the whether normal of infrared receiving terminal.The LED gathered according to single-chip microcomputer and the current value of charactron, judge whether LED and charactron normally work.Cylinder is adopted automatically to pull out line after test passes.
Preferably, display screen tester in above-described embodiment can be connected with display screen to be tested by test fixture, wherein, test fixture comprises: at least one group of display screen connecting interface and test interface, wherein, the connecting line access display screen connecting interface of display screen to be tested, the test connecting line access test interface of display screen tester, lays splicing ear between display screen connecting interface and test interface; Electricity cylinder, is connected with splicing ear, for after the end test instruction receiving display screen tester, drives electric cylinder to be separated with display screen connecting interface or test interface by splicing ear.
Such scheme achieves one and automatically pulls out line mechanism, eliminates the action of manually pulling out line, improper for preventing checker from pulling out line, the man-made fault such as cause that terminal removal and line are pulled apart, and adds and automatically pulls out line function, implant small electrical cylinder in frock in system.After comprehensive tester completes test, send instruction, now electric cylinder action retracted downward, whole terminal is separated with frock by power vertically downward, realizes automatically pulling out line.
It should be noted that, the application develops a kind of display auto testing instrument herein, and this equipment can differentiate that whether display is qualified at intelligent measure in 2-3 second, and shows corresponding test value in real time by liquid crystal display, and partial function is as follows:
1, the power consumption electric current of display board LED and charactron is automatically measured;
2, be with learning functionality, the measured parameter of different display board can be learnt, the display board of different model can be stored;
3, with beginning road measuring ability, after plugging display board, automatically switch road situation between each line is detected;
4, test passes rear drive is automatically pulled out line structure realization and is automatically pulled out line;
5, the power consumption electric current of Receiver is measured, the amplitude of output signal, the correctness of output encoder;
6,3.7 cun of color touch liquid crystal display display test modes and test result.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Embodiment three:
Fig. 8 is the structural representation of the proving installation of display screen according to the embodiment of the present invention three.As shown in Figure 8, the proving installation of this display screen comprises: acquisition module 80, acquisition module 82 and test module 84.
Wherein, acquisition module 80, for obtaining the canonical parameter of multiple parts of display screen to be tested; Acquisition module 82, for gathering the test data of multiple parts of display screen to be tested, test data comprises: the low and high level value of the reference voltage value of display screen to be tested, the infrared receiving terminal of display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of display screen to be tested, the current value of charactron; Test module 84, for each test data being compared respectively with corresponding canonical parameter, obtains test result.
Preferably, above-mentioned acquisition module 80 can comprise: communication module 801, for conventional display and display screen tester being communicated to connect; Sub-acquisition module 803, for starting the learning functionality of display screen tester, gather the supplemental characteristic of multiple parts of conventional display as canonical parameter, wherein, canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.
Preferably, before the learning functionality starting display screen tester, upper limit float value and the lower limit float value of canonical parameter can be set, canonical parameter is regulated according to upper limit float value or lower limit float value.
Test module 84 in above-described embodiment can comprise following any one or more functional module:
Open-short circuit module 841, for the reference voltage value of display screen to be tested and standard voltage value are compared, if the difference of reference voltage value and standard voltage value is within the first preset range, then test result is that display screen to be tested is in open-circuit condition, otherwise test result is display screen to be tested is in short-circuit condition;
Infrared receiving terminal test module 843, compare with the standard low and high level value of infrared receiving terminal and standard high/low currents value respectively for the low and high level value of the infrared receiving terminal by display screen to be tested and high/low currents value, if the level difference value of low and high level value and standard low and high level value is within the second preset range, and the current differential of high/low currents value and standard high/low currents value is within the 3rd preset range, then test result is verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise test result is verify that the infrared receiving terminal of display screen to be tested exists fault,
LED particle test module 845, for the LED electrical flow valuve of display screen to be tested and standard LED electrical flow valuve are compared, if the difference of LED electrical flow valuve and standard LED electrical flow valuve is within the 4th preset range, then test result is that the LED particle of display screen to be tested is in normal operating conditions, otherwise the LED particle that test result is display screen to be tested exists fault;
Charactron test module 847, compare for the current value of the charactron by display screen to be tested and standard current value, if the difference of the standard current value of charactron and standard current value is within the 5th preset range, then test result is that the charactron of display screen to be tested is in normal operating conditions, otherwise the charactron that test result is display screen to be tested exists fault.
Preferably, in above-described embodiment, before infrared receiving terminal test module 843 execution verifies that the infrared receiving terminal of display screen to be tested is in the function of normal operating conditions, device can also run following functional module: driver module, launches the infrared receiving terminal of infrared remote instruction to display screen to be tested for driving telepilot; Receiver module, for receiving the infrared remote instruction that infrared receiving terminal forwards; Decoder module, for decoding to infrared remote instruction; Telecommand test module, for the decoded result obtained and canonical solution code value are compared, if decoded result is decoded identical with standard, then verify that the infrared receiving terminal of display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of display screen to be tested exists fault.
Preferably, display screen tester in above-described embodiment is connected with display screen to be tested by test fixture, wherein, test fixture can comprise: at least one group of display screen connecting interface and test interface, wherein, the connecting line access display screen connecting interface of display screen to be tested, the test connecting line access test interface of display screen tester, lays splicing ear between display screen connecting interface and test interface; Electricity cylinder, is connected with splicing ear, for after the end test instruction receiving display screen tester, drives electric cylinder to be separated with display screen connecting interface or test interface by splicing ear.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add required general hardware platform by software and realizes.Based on such understanding, the technical scheme of the application can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method for some part of each embodiment of the application or embodiment.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
The application can be used in numerous general or special purpose computing system environment or configuration.Such as: personal computer, server computer, handheld device or portable set, laptop device, multicomputer system, system, set top box, programmable consumer-elcetronics devices, network PC, small-size computer, mainframe computer, the distributed computing environment comprising above any system or equipment etc. based on microprocessor.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a method of testing for display screen, is characterized in that, comprising:
Display screen tester obtains the canonical parameter of multiple parts of display screen to be tested;
Described display screen tester gathers the test data of described multiple parts of described display screen to be tested, and described test data comprises: the low and high level value of the reference voltage value of described display screen to be tested, the infrared receiving terminal of described display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of described display screen to be tested, the current value of charactron;
Each test data is compared with corresponding canonical parameter by described display screen tester respectively, obtains test result.
2. method according to claim 1, is characterized in that, the step that display screen tester obtains the canonical parameter of multiple parts of display screen to be tested comprises:
Conventional display and described display screen tester are communicated to connect;
Start the learning functionality of described display screen tester, gather the supplemental characteristic of multiple parts of described conventional display as described canonical parameter, wherein, described canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.
3. method according to claim 2, it is characterized in that, before the learning functionality starting described display screen tester, described method also comprises: the upper limit float value and the lower limit float value that arrange canonical parameter, and described canonical parameter is regulated according to described upper limit float value or described lower limit float value.
4. according to the method in claim 2 or 3, it is characterized in that, each test data is compared with corresponding canonical parameter by described display screen tester respectively, and the step obtaining test result comprises following any one or more scheme:
The reference voltage value of described display screen to be tested and described standard voltage value are compared, if the difference of described reference voltage value and described standard voltage value is within the first preset range, then described test result is that described display screen to be tested is in open-circuit condition, otherwise described test result is described display screen to be tested is in short-circuit condition;
The low and high level value of the infrared receiving terminal of described display screen to be tested and high/low currents value are compared with the standard low and high level value of described infrared receiving terminal and standard high/low currents value respectively, if the level difference value of described low and high level value and described standard low and high level value is within the second preset range, and the current differential of described high/low currents value and described standard high/low currents value is within the 3rd preset range, then described test result is verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise described test result is verify that the infrared receiving terminal of described display screen to be tested exists fault,
The LED electrical flow valuve of described display screen to be tested and described standard LED electrical flow valuve are compared, if the difference of described LED electrical flow valuve and described standard LED electrical flow valuve is within the 4th preset range, then described test result is that the LED particle of described display screen to be tested is in normal operating conditions, otherwise the LED particle that described test result is described display screen to be tested exists fault;
The current value of the charactron of described display screen to be tested and described standard current value are compared, if the difference of the standard current value of described charactron and described standard current value is within the 5th preset range, then described test result is that the charactron of described display screen to be tested is in normal operating conditions, otherwise the charactron that described test result is described display screen to be tested exists fault.
5. method according to claim 4, is characterized in that, before the infrared receiving terminal of the described display screen to be tested of checking is in normal operating conditions, described method also comprises:
Described display screen tester drives telepilot to launch the infrared receiving terminal of infrared remote instruction to described display screen to be tested;
Described infrared remote instruction is transmitted to the governor circuit of described display screen tester by described infrared receiving terminal;
Described governor circuit is decoded to described infrared remote instruction, the described decoded result obtained and described canonical solution code value are compared, if described decoded result is decoded identical with described standard, then verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of described display screen to be tested exists fault.
6. method according to claim 1, is characterized in that, described display screen tester is connected with described display screen to be tested by test fixture, and wherein, described test fixture comprises:
At least one group of display screen connecting interface and test interface, wherein, the connecting line of described display screen to be tested accesses described display screen connecting interface, and the test connecting line of described display screen tester accesses described test interface, lays splicing ear between described display screen connecting interface and test interface;
Electricity cylinder, is connected with described splicing ear, for after the end test instruction receiving described display screen tester, drives described electric cylinder to be separated with described display screen connecting interface or test interface by described splicing ear.
7. a test macro for display screen, is characterized in that, comprising:
Display screen to be tested;
Display screen tester, be connected with described display screen to be tested, for gathering the test data of described multiple parts of described display screen to be tested, and obtain the canonical parameter of multiple parts of described display screen to be tested, each test data is compared respectively with corresponding canonical parameter, obtains test result;
Wherein, described in described display screen tester, test data comprises: the low and high level value of the reference voltage value of described display screen to be tested, the infrared receiving terminal of described display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of described display screen to be tested, the current value of charactron.
8. system according to claim 7, is characterized in that, described display screen tester comprises:
Storer, for after the learning functionality starting described display screen tester, preserve the supplemental characteristic of the multiple parts by gathering described conventional display and the described canonical parameter that obtains, wherein, described canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.
9. system according to claim 8, is characterized in that, described display screen tester comprises:
Reference voltage Acquisition Circuit, for gathering the reference voltage value of described display screen to be tested;
Infrared receiving terminal testing circuit, for gathering low and high level value and the high/low currents value of the infrared receiving terminal of described display screen to be tested;
LED Acquisition Circuit, for gathering the LED current of described display screen to be tested;
Charactron Acquisition Circuit, for gathering the current value of the charactron of described display screen to be tested;
Governor circuit, be connected with described reference voltage Acquisition Circuit, described infrared receiving terminal testing circuit, described LED Acquisition Circuit and described charactron Acquisition Circuit respectively, for the reference voltage value of described display screen to be tested and described standard voltage value are compared, if the difference of described reference voltage value and described standard voltage value is within the first preset range, then described test result is that described display screen to be tested is in open-circuit condition, otherwise described test result is described display screen to be tested is in short-circuit condition;
Described governor circuit also compares with the standard low and high level value of described infrared receiving terminal and standard high/low currents value respectively for the low and high level value of the infrared receiving terminal by described display screen to be tested and high/low currents value, if the level difference value of described low and high level value and described standard low and high level value is within the second preset range, and the current differential of described high/low currents value and described standard high/low currents value is within the 3rd preset range, then described test result is verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise described test result is verify that the infrared receiving terminal of described display screen to be tested exists fault,
Described governor circuit is also for comparing the LED electrical flow valuve of described display screen to be tested and described standard LED electrical flow valuve, if the difference of described LED electrical flow valuve and described standard LED electrical flow valuve is within the 4th preset range, then described test result is that the LED particle of described display screen to be tested is in normal operating conditions, otherwise the LED particle that described test result is described display screen to be tested exists fault;
Described governor circuit also compares for the current value of the charactron by described display screen to be tested and described standard current value, if the difference of the standard current value of described charactron and described standard current value is within the 5th preset range, then described test result is that the charactron of described display screen to be tested is in normal operating conditions, otherwise the charactron that described test result is described display screen to be tested exists fault.
10. system according to claim 9, is characterized in that, described display screen tester also comprises:
Drive unit, launches the infrared receiving terminal of infrared remote instruction to described display screen to be tested for driving telepilot;
Described governor circuit also for, after receiving described infrared receiving terminal and forwarding the described infrared remote instruction come, described infrared remote instruction is decoded, the described decoded result obtained and described canonical solution code value are compared, if described decoded result is decoded identical with described standard, then verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of described display screen to be tested exists fault.
11. systems according to claim 7, is characterized in that, described display screen tester is connected with described display screen to be tested by test fixture, and wherein, described test fixture comprises:
At least one group of display screen connecting interface and test interface, wherein, the connecting line of described display screen to be tested accesses described display screen connecting interface, and the test connecting line of described display screen tester accesses described test interface, lays splicing ear between described display screen connecting interface and test interface;
Electricity cylinder, is connected with described splicing ear, for after the end test instruction receiving described display screen tester, drives described electric cylinder to be separated with described display screen connecting interface or test interface by described splicing ear.
The proving installation of 12. 1 kinds of display screens, is characterized in that, comprising:
Acquisition module, for obtaining the canonical parameter of multiple parts of display screen to be tested;
Acquisition module, for gathering the test data of described multiple parts of described display screen to be tested, described test data comprises: the low and high level value of the reference voltage value of described display screen to be tested, the infrared receiving terminal of described display screen to be tested, high/low currents value and decoded result, the LED electrical flow valuve of described display screen to be tested, the current value of charactron;
Test module, for each test data being compared respectively with corresponding canonical parameter, obtains test result.
13. devices according to claim 12, is characterized in that, described acquisition module comprises:
Communication module, for communicating to connect conventional display and described display screen tester;
Sub-acquisition module, for starting the learning functionality of described display screen tester, gather the supplemental characteristic of multiple parts of described conventional display as described canonical parameter, wherein, described canonical parameter comprises: the standard current value of the standard low and high level value of standard voltage value, infrared receiving terminal, standard high/low currents value and canonical solution code value, standard LED electrical flow valuve, charactron.
14. devices according to claim 13, it is characterized in that, before the learning functionality starting described display screen tester, described method also comprises: the upper limit float value and the lower limit float value that arrange canonical parameter, and described canonical parameter is regulated according to described upper limit float value or described lower limit float value.
15. devices according to claim 13 or 14, it is characterized in that, described test module comprises following any one or more functional module:
Open-short circuit module, for the reference voltage value of described display screen to be tested and described standard voltage value are compared, if the difference of described reference voltage value and described standard voltage value is within the first preset range, then described test result is that described display screen to be tested is in open-circuit condition, otherwise described test result is described display screen to be tested is in short-circuit condition;
Infrared receiving terminal test module, compare with the standard low and high level value of described infrared receiving terminal and standard high/low currents value respectively for the low and high level value of the infrared receiving terminal by described display screen to be tested and high/low currents value, if the level difference value of described low and high level value and described standard low and high level value is within the second preset range, and the current differential of described high/low currents value and described standard high/low currents value is within the 3rd preset range, then described test result is verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise described test result is verify that the infrared receiving terminal of described display screen to be tested exists fault,
LED particle test module, for the LED electrical flow valuve of described display screen to be tested and described standard LED electrical flow valuve are compared, if the difference of described LED electrical flow valuve and described standard LED electrical flow valuve is within the 4th preset range, then described test result is that the LED particle of described display screen to be tested is in normal operating conditions, otherwise the LED particle that described test result is described display screen to be tested exists fault;
Charactron test module, compare for the current value of the charactron by described display screen to be tested and described standard current value, if the difference of the standard current value of described charactron and described standard current value is within the 5th preset range, then described test result is that the charactron of described display screen to be tested is in normal operating conditions, otherwise the charactron that described test result is described display screen to be tested exists fault.
16. devices according to claim 15, is characterized in that, before the infrared receiving terminal of the described display screen to be tested of checking is in normal operating conditions, described device also comprises:
Driver module, launches the infrared receiving terminal of infrared remote instruction to described display screen to be tested for driving telepilot;
Receiver module, for receiving the described infrared remote instruction that described infrared receiving terminal forwards;
Decoder module, for decoding to described infrared remote instruction;
Telecommand test module, for the described decoded result obtained and described canonical solution code value are compared, if described decoded result is decoded identical with described standard, then verify that the infrared receiving terminal of described display screen to be tested is in normal operating conditions, otherwise verify that the infrared receiving terminal of described display screen to be tested exists fault.
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