CN106970318A - Measuring instrument circuit board intelligent test system and intelligent test method - Google Patents

Measuring instrument circuit board intelligent test system and intelligent test method Download PDF

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Publication number
CN106970318A
CN106970318A CN201710277139.4A CN201710277139A CN106970318A CN 106970318 A CN106970318 A CN 106970318A CN 201710277139 A CN201710277139 A CN 201710277139A CN 106970318 A CN106970318 A CN 106970318A
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CN
China
Prior art keywords
test
circuit board
programming
board under
under test
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CN201710277139.4A
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Chinese (zh)
Inventor
张家齐
李大伟
李洪亮
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Goldcard Smart Group Co Ltd
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Goldcard Smart Group Co Ltd
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Priority to CN201710277139.4A priority Critical patent/CN106970318A/en
Publication of CN106970318A publication Critical patent/CN106970318A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2803Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP] by means of functional tests, e.g. logic-circuit-simulation or algorithms therefor

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

The invention discloses measuring instrument circuit board intelligent test system and intelligent test method, belong to technical field of circuit board detection, solve existing measuring instrument circuit board and there is the low problem of efficiency by artificial detection, the measuring instrument circuit board intelligent test system of the present invention includes programming device, for function program programming to be entered into circuit board under test;Measurement of the display characteristics device, is tested for the display performance to circuit board under test;Device for testing functions, is tested for the function to circuit board under test;Identity device, the test result of comprehensive the measurement of the display characteristics device and device for testing functions is identified to circuit board under test;The slab feeding mechanism being connected with programming device, slab feeding mechanism is used to circuit board under test sending into programming device;Main control unit, for controlling programming device, measurement of the display characteristics device, device for testing functions, identity device and the operation of slab feeding mechanism.The embodiment of the present invention can be applied to the circuit board testing of all kinds of intelligent gas meters.

Description

Measuring instrument circuit board intelligent test system and intelligent test method
【Technical field】
The present invention relates to technical field of circuit board detection, especially measuring instrument circuit board intelligent test system and intelligent testing Method for testing.
【Background technology】
With the raising of people's living standard and quality of life, the "smart" products demand required for modernization family promotees Gas meter, flow meter is set to develop towards security, reliability, intelligent convenience direction.Circuit board is the core component of intelligent gas meter, it It is the control system of whole intelligent gas meter, effectively control gas meter, flow meter realizes that various functions are designed, and the use to combustion gas has Effect control and management, the quality of circuit board performance directly affect the use reliability and security of intelligent gas meter, therefore, intelligence Gas meter, flow meter is required for testing circuit board various functions and performance before dispatching from the factory, to ensure the performance and safety of instrument Property.In the prior art it is generally necessary to manually be tested by a large amount of commissioning devices circuit board, such as tester people is manual Dial-up, remote manual control, check that whether corresponding test indicator lamp and display carry out decision circuitry plate qualified, has cost of labor It is high, the problem of detection efficiency is low, particularly the problem of high-volume test also has missing inspection, flase drop, may cause underproof Instrument product comes into the market, in addition, artificial detection inevitably touches circuit board, circuit board is manually plugged repeatedly, easily The artificial damage of circuit board is caused, circuit board is even resulted in and directly scraps, add testing cost.How current efficiency bottom is improved Under manual testing's means, realize that intelligent gas meter circuit board is automatic, efficiently and accurately detect and turn into urgently to be resolved hurrily in industry Technical problem.
【The content of the invention】
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art and provide a kind of measuring instrument circuit Plate intelligent test system, realizes the automatic detection of measuring instrument circuit board, lifting detection efficiency and the degree of accuracy.
Above-mentioned technical problem is solved, the present invention is adopted the following technical scheme that:
Measuring instrument circuit board intelligent test system, including,
Programming device, for function program programming to be entered into circuit board under test;
Measurement of the display characteristics device, is tested for the display performance to circuit board under test;
Device for testing functions, is tested for the function to circuit board under test;
Identity device, the test result of comprehensive the measurement of the display characteristics device and device for testing functions is to circuit board under test It is identified;
The slab feeding mechanism being connected with programming device, slab feeding mechanism is used to circuit board under test sending into programming device;
Main control unit, for controlling programming device, measurement of the display characteristics device, device for testing functions, identity device and sending The operation of trigger structure.
In above-mentioned measuring instrument circuit board intelligent test system, the programming device includes programming control panel and programming Function program programming is entered circuit board under test by device, the programming instruction that the programmable device is sent according to programming control panel.
In above-mentioned measuring instrument circuit board intelligent test system, the measurement of the display characteristics device includes display performance Test control panel and acquisition module, the circuit board under test are provided with display screen, and the circuit board under test is according to measurement of the display characteristics The idsplay order control display screen that control panel is sent is shown that the acquisition module gathers the display performance of display screen and upload To the main control unit.
In above-mentioned measuring instrument circuit board intelligent test system, the acquisition module is camera, and the camera is to aobvious The display performance of display screen is taken pictures and image data is uploaded into the main control unit;Or the acquisition module is shooting Head, the camera is shot to the display performance of display screen and video data is uploaded into the main control unit.
The invention also provides measuring instrument circuit board intelligent test method, pass through measuring instrument circuit board intelligence test system System is tested, and the intelligent test system includes programming device, measurement of the display characteristics device, device for testing functions, mark dress Put, main control unit and the slab feeding mechanism being connected with programming device, the main control unit is used to control programming device, display performance to survey Trial assembly is put, the operation of device for testing functions, identity device and slab feeding mechanism, and the intelligent test method includes:
Programming process, circuit board under test is entered by programming device by function program programming;
Lead in test step, including measurement of the display characteristics process and functional test process, the measurement of the display characteristics process Cross in the display performance of measurement of the display characteristics device to test circuit board under test, the functional test process and pass through device for testing functions The test result of the function of test circuit board under test, measurement of the display characteristics process and functional test process uploads and is stored in master control Unit;
Process is identified, the test result that identity device is stored according to main control unit is identified to circuit board under test.
In above-mentioned measuring instrument circuit board intelligent test method, the programming device includes programming control panel and programming The step of device, programming process, includes:
Main control unit sends programming to programmable device by programming control panel and instructed;
Programmable device instructs according to programming program writing circuit board under test.
In above-mentioned measuring instrument circuit board intelligent test method, the measurement of the display characteristics device includes display performance Test control panel and acquisition module, the circuit board under test are provided with display screen, and the measurement of the display characteristics process includes:
Main control unit sends idsplay order, the circuit board under test by measurement of the display characteristics control panel to circuit board under test Shown according to idsplay order control display screen;
The display performance of acquisition module collection display screen is simultaneously uploaded to main control unit;
Main control unit is contrasted information is gathered with prestored information, to judge the display performance of circuit board under test display screen It is whether qualified.
In above-mentioned measuring instrument circuit board intelligent test method, the device for testing functions is controlled including functional test Plate, the functional test process includes:
Main control unit is tested to circuit board under test sending function by functional test control panel and instructed;
Circuit board under test is instructed according to functional test to carry out functional test and test result is returned back into main control unit item by item;
Main control unit will judge whether circuit board under test various functions are qualified according to return information.
In above-mentioned measuring instrument circuit board intelligent test method, in the test step, display performance survey is first carried out Trial work sequence, then carry out functional test process;Or, in the test step, functional test process is first carried out, then carry out display Can test step.
In above-mentioned measuring instrument circuit board intelligent test method, work(of the functional test process to circuit board under test Can test includes electric function of current test, voltage function test, valve opening functional test, warning function test, tally function survey Examination, pass valve functional test, GPRS functional tests, infrared functional test, self-checking function test, quiescent current functional test, power down At least one of functional test and LED function test.
Beneficial effects of the present invention:
Measuring instrument circuit board intelligent test system proposed by the present invention, including programming device, for function program to be burnt Write circuit board under test;Measurement of the display characteristics device, is tested for the display performance to circuit board under test;Functional test is filled Put, tested for the function to circuit board under test;Identity device, the comprehensive measurement of the display characteristics device and functional test The test result of device is identified to circuit board under test;The slab feeding mechanism being connected with programming device, slab feeding mechanism is used to treat Slowdown monitoring circuit plate sends into programming device;Main control unit, for control programming device, measurement of the display characteristics device, device for testing functions, The operation of identity device and slab feeding mechanism.By above-mentioned intelligent test system, complete automatically, in an orderly manner to circuit board under test Program burn writing, performance detection and Function detection, test process are automatically performed, automatic decision, and centre test judges link prosthetic Intervene, detection is efficiently and accurate, solve the problem of existing manual detection mode produces missing inspection, flase drop, appliance circuit can be met The demand of plate high-volume test;Due to no manual intervention in test process, the probability of human contact's circuit board is reduced, is effectively kept away Exempt from the artificial damage of circuit board, it is ensured that detection reliability;It is automatically performed after the completion of test by identity device to circuit board under test Mark, so as to subsequent sort personal identification, improve mark accuracy rate, manual identification can be avoided spill tag, wrong target problem occur.
The programming device includes programming control panel and programmable device, the programming that the programmable device is sent according to programming control panel Function program programming is entered circuit board under test by instruction.Function program programming is entered by circuit board under test, programming control by programmable device Plate, which is used between programmable device and main control unit set up, accurately and reliably receives and sends programming instruction in communication, test process; Using programmable device programming program, programming efficiency and programming success rate can ensure that.
The measurement of the display characteristics device includes measurement of the display characteristics control panel and acquisition module, and the circuit board under test is set There is display screen, the idsplay order control display screen that the circuit board under test is sent according to measurement of the display characteristics control panel is shown Show, the display performance of the acquisition module collection display screen is simultaneously uploaded to the main control unit.Measurement of the display characteristics control panel is used Accurately and reliably receive and send idsplay order in communication, test process in being set up between circuit board under test and main control unit; By acquisition module gather display screen display performance, the display performance of actual response display screen, display content exhaustive, thus The accuracy in detection of display screen display performance can be improved, it is to avoid the missing inspection of manual identified presence, flase drop drawback;Main control unit can Judged according to gathered data automatic identification, improve testing efficiency.
Measuring instrument circuit board intelligent test method proposed by the present invention, passes through measuring instrument circuit board intelligent test system Tested, the intelligent test system include programming device, measurement of the display characteristics device, device for testing functions, identity device, Main control unit and the slab feeding mechanism being connected with programming device, the main control unit are used to control programming device, measurement of the display characteristics Device, device for testing functions, the operation of identity device and slab feeding mechanism, the intelligent test method include:Including display performance Pass through measurement of the display characteristics device to test circuit under test in test step and functional test process, the measurement of the display characteristics process The function of circuit board under test, display performance are tested in the display performance of plate, the functional test process by device for testing functions The test result of test step and functional test process uploads and is stored in main control unit;Process is identified, identity device is according to master The test result of control unit storage is identified to circuit board under test.
By above-mentioned intelligent test method it is automatic, complete the program burn writing to circuit board, performance detection and function in an orderly manner Detection, test process is automatically performed, automatic decision, and centre test judges link no manual intervention, and detection is efficiently and accurate, solves The problem of existing manual detection mode produces missing inspection, flase drop, can meet the demand of appliance circuit plate high-volume test;Due to surveying No manual intervention during examination, reduces the probability of human contact's circuit board, is prevented effectively from the artificial damage of circuit board, it is ensured that inspection Survey reliability.
In above-mentioned measuring instrument circuit board intelligent test method, the device for testing functions is controlled including functional test Plate, the functional test process includes:Main control unit is referred to by functional test control panel to the test of circuit board under test sending function Order;Circuit board under test is instructed according to functional test to carry out functional test and test result is returned back into main control unit item by item;Master control Unit will judge whether circuit board under test various functions are qualified according to return information.Functional test control panel is used in main control unit Set up in communication, test process and accurately and reliably receive and sending function test instruction between circuit board under test;Due to function Test event is generally more, is difficult to reach by current artificial detection and tests effect well, or even can not complete some consumptions When project test, functional test mode of the invention, by device for testing functions it is quick, effectively, complete to treat exhaustive The test of slowdown monitoring circuit plate various functions, while feedback test data, the analysis to test data is automatically performed by main control unit Processing, improves the validity and accuracy of circuit board function test;In addition, according to test request and the difference of board type, Functional test project can be increased and decreased, test mode flexibility and changeability strengthens versatility.
The present invention these features and advantage will be detailed in following embodiment, accompanying drawing exposure.
【Brief description of the drawings】
The present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of metering appliance circuit plate intelligent test system in the embodiment of the present invention one;
Fig. 2 is the test flow chart of metering appliance circuit plate intelligent test system in the embodiment of the present invention one;
Fig. 3 is the structural representation of circuit board under test in the embodiment of the present invention one;
Fig. 4 is the testing and control figure of programming process in the embodiment of the present invention one;
Fig. 5 is measurement of the display characteristics control figure in test step in the embodiment of the present invention one;
Fig. 6 is functional test control figure in test step in the embodiment of the present invention one;
Fig. 7 is the mark control figure of mark process in the embodiment of the present invention one;
Fig. 8 is the schematic diagram of metering appliance circuit plate intelligent test system in the embodiment of the present invention two;
Fig. 9 is the test flow chart of metering appliance circuit plate intelligent test system in the embodiment of the present invention two;
The schematic diagram that Figure 10 is placed on bracket for circuit board under test in the embodiment of the present invention two.
Reference:1 slab feeding mechanism, 11 brackets, 111 positioning holes, 2 programming devices, 21 programmings control host computer, 22 programmings Control panel, 23 programmable devices, 24 control switching circuits, 25 programming controllers, 3 measurement of the display characteristics devices, 31 measurement of the display characteristics Host computer, 32 measurement of the display characteristics control panels, 33 cameras, 34 measurement of the display characteristics controllers, 4 device for testing functions, 41 functions Test host computer, 42 functional test control panels, 43 functional test controllers, 5 identity devices, 51 mark controllers, 52 mark gas Cylinder, 53 mark chapters, 6 connection platforms, 7 circuit board under test, 71 display screens, 8 servers, 91 bracket separators, 92 cutting devices.
【Embodiment】
Measuring instrument circuit board intelligent test system proposed by the present invention, including programming device, for function program to be burnt Write circuit board under test;Measurement of the display characteristics device, is tested for the display performance to circuit board under test;Functional test is filled Put, tested for the function to circuit board under test;Identity device, the comprehensive measurement of the display characteristics device and functional test The test result of device is identified to circuit board under test;The slab feeding mechanism being connected with programming device, slab feeding mechanism is used to treat Slowdown monitoring circuit plate sends into programming device;Main control unit, for control programming device, measurement of the display characteristics device, device for testing functions, The operation of identity device and slab feeding mechanism.By the intelligent test system of the present invention, complete automatically, in an orderly manner to circuit board under test Program burn writing, performance detection and Function detection, test process is automatically performed, automatic decision, centre test judge link nobody Work is intervened, and detection is efficiently and accurate, solves the problem of existing manual detection mode produces missing inspection, flase drop, can meet instrument electricity The demand of road plate high-volume test;Due to no manual intervention in test process, the probability of human contact's circuit board is reduced, effectively Avoid the artificial damage of circuit board, it is ensured that detection reliability;It is automatically performed after the completion of test by identity device to circuit under test The mark of plate, so as to subsequent sort personal identification, improves mark accuracy rate, and manual identification can be avoided spill tag, wrong target occur and asked Topic.
The technical scheme of the embodiment of the present invention is explained and illustrated with reference to the accompanying drawing of the embodiment of the present invention, but under Embodiment only the preferred embodiments of the present invention are stated, and it is not all.Based on the embodiment in embodiment, those skilled in the art Other embodiment is obtained on the premise of creative work is not made, protection scope of the present invention is belonged to.
In the following description, there is the instruction such as term " top ", " bottom ", " interior ", " outer ", " on ", " under " Orientation or position relationship are that, based on orientation shown in the drawings or position relationship, the description present invention merely for convenience and simplification are retouched State, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not considered as limiting the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it can not manage Solve to indicate or imply relative importance or the implicit quantity for indicating indicated technical characteristic, define " first ", " the One or more this feature can be expressed or be implicitly included to two " feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any One or more embodiments or example in combine in an appropriate manner.
Embodiment one
Reference picture 1-3, the measuring instrument circuit board intelligent test system that the embodiment of the present invention is proposed, including,
Programming device 2, for function program programming to be entered into circuit board under test 7;
Measurement of the display characteristics device 3, is tested for the display performance to circuit board under test 7;
Device for testing functions 4, is tested for the function to circuit board under test 7;
Identity device 5, the test result of comprehensive the measurement of the display characteristics device 3 and device for testing functions 4 is to electricity to be measured Road plate 7 is identified;
The slab feeding mechanism 1 being connected with programming device 2, slab feeding mechanism 1 is used to circuit board under test 7 sending into programming device 2;
Main control unit, for controlling programming device 2, measurement of the display characteristics device 3, device for testing functions 4, identity device 5 With the operation of slab feeding mechanism 1.
Specifically, the measuring instrument circuit board described in the present embodiment is the circuit board of intelligent gas meter, generally comprises list Piece machine, valve circuit, infrared communication circuit, card reading circuit, mu balanced circuit, storage circuit, clock circuit, counting circuit, power supply Circuit, warning circuit etc., single-chip microcomputer need advance programming to enter function program, could realize corresponding design function, and programming enters electricity The integrality of the function program of road plate has to be tested comprehensively, to ensure that its design function is achieved.
With reference to Fig. 4, above-mentioned programming device 2 includes programming control panel 22 and programmable device 23, and programmable device 23 is according to programming control Function program programming is entered circuit board under test 7 by the programming instruction that plate 22 is sent.Programming control panel 22 is used in programmable device 23 and master Control and accurately and reliably receive and send programming instruction in foundation communication between unit, test process;Utilize the programming journey of programmable device 23 Sequence, can ensure that programming efficiency and programming success rate.The present embodiment have also been devised to lift programming efficiency in programming device 2 Switching circuit 24 is controlled, programmable device 23 burns by controlling at least two pieces circuit board under test 7 of 24 pairs of switching circuit sequentially to enter line program Write, control switching circuit 24 connects polylith circuit board under test 7 simultaneously, is automatically switched to after the completion of one piece of programming of circuit board under test 7 Next piece of circuit board under test 7, programming efficiency is substantially improved;Control the setting programming failure of switching circuit 24 then to repeat programming, prevent The factor such as control switching circuit 24 and the loose contact of circuit board under test 7 causes the circuit board under test 7 of programming failure to flow into next work Sequence, it is ensured that the circuit board in follow-up test is entered complete function program by programming.It is preferred that, the present embodiment is using two programmings Device 23, one control switching circuit 24 of the correspondence of programmable device 23 connection, four pieces of connection is to be measured simultaneously for the control switching circuit 24 Circuit board 7, one drags four carry out programmings, programming improved efficiency.In some other embodiments, it can also increase according to the actual requirements Programmable device quantity, control switching circuit can also connect more circuit board under test.
With reference to Fig. 3,5, above-mentioned measurement of the display characteristics device 3 includes measurement of the display characteristics control panel 32 and acquisition module, treated Slowdown monitoring circuit plate 7 is provided with display screen 71, and the idsplay order that circuit board under test 7 is sent according to measurement of the display characteristics control panel 32 controls aobvious Display screen 71 is shown that the display performance of acquisition module collection display screen 71 is simultaneously uploaded to main control unit.Measurement of the display characteristics control Making sheet 32, which is used between circuit board under test 7 and main control unit set up in communication, test process, accurately and reliably to be received and sends Idsplay order;Gathered by acquisition module in the display performance of display screen 71, the display performance of actual response display screen 71, display Hold exhaustive, it is possible thereby to improve the accuracy in detection of the display performance of display screen 71, it is to avoid the missing inspection of manual identified presence, flase drop Drawback;Main control unit can judge according to gathered data automatic identification, improve testing efficiency.In general, the display of display screen 71 Performance mainly includes the display content and display capabilities of display screen 71, and the display screen 71 of circuit board under test 7 is generally used for display The information such as electricity, charging, if occurring showing mistake in practical application, can cause not small puzzlement, if display screen 71 to user Display brightness/color it is defective, also result in using upper inconvenience, so need to survey the display performance of display screen 71 Examination.
The acquisition module of the present embodiment is camera 33, and preferentially using the industrial camera 33 of high pixel, camera 33 is to display screen 71 display performance is taken pictures and image data is uploaded into pre-stored criteria information (standard drawing in main control unit, main control unit Piece), image data that camera 33 is collected is contrasted with standard information, it is identical be judged as it is qualified, it is variant, be judged as not conforming to Lattice.Because the practical application of display screen 71 of circuit board under test 7 mainly shows numeral, so the circuit board under test of the present embodiment 7 The idsplay order control display screen 71 sent according to measurement of the display characteristics control panel 32 shows corresponding numeral, and whether detection numeral deposits Many aobvious, few aobvious, wrong aobvious the problems such as, in other embodiment, the present invention according to the actual requirements, display screen can also show word, Letter, or word, letter and number combinatorics on words, and it is detected.
In the case where polylith circuit board under test 7 is tested simultaneously, if taken pictures using a camera, it is desirable to shooting figure The display performance of all circuit board under test display screens can be included in piece, the picture quality of collection can be caused to decline, increase identification is difficult Degree, therefore, in the case where having polylith circuit board under test while testing, can select two, multiple cameras such as three, Mei Gexiang Machine can gather the display performance of at least one piece circuit board under test display screen 71, such as the present embodiment is in eight pieces of circuit board under test 7 Test simultaneously in the case of, using the exposal model of double camera 33, the correspondence four pieces of circuit board under test display screens of collection of camera 33 71 display performance, it is ensured that can react four pieces of circuit under test clearly, exactly in the pictorial information acquired in each camera 33 The display performance of plate display screen 71, is meeting polylith circuit board under test 7 while under the requirement tested, picture matter of taking pictures is can guarantee that again Amount.Thus those skilled in the art are it is also contemplated that using four cameras, each camera correspondence two pieces of circuit board under test of collection show The display performance of display screen, such scheme is also all within the scope of the present invention.
In some other embodiments, acquisition module can also be camera, display performance of the camera to display screen Shot and video data is uploaded to main control unit, the standard that the video data that camera is obtained prestores with main control unit Information contrast, it is identical be judged as it is qualified, it is variant, be judged as unqualified.
With reference to Fig. 6, above-mentioned device for testing functions 4, including functional test control panel 42, circuit board under test 7 is according to function The test instruction that test control panel 42 is sent carries out functional test item by item.The functional test of the present embodiment circuit board under test 7 includes Upper electric function of current test, voltage function test, valve opening functional test, warning function test, tally function test, pass valve function Test, GPRS functional tests, infrared functional test, self-checking function test, quiescent current functional test, power down functional test and LED function is tested.Functional test control panel 42 is used between main control unit and circuit board under test 7 set up communication, test process In accurately and reliably receive and sending function test instruction;It is difficult by current artificial detection because functional test project is more Effect is tested well to reach, or even can not complete the test of some time-consuming projects, and the present embodiment relies on device for testing functions 4 Quickly, the test to the various functions of circuit board under test 7 is completed, while feedback test data, pass through master control list effectively, exhaustive Member is automatically performed the analyzing and processing to test data, improves the validity and accuracy of circuit board function test;In addition, according to survey Examination requires the difference with board type, can increase and decrease functional test project, and test mode flexibility and changeability strengthens versatility.
Because functional test project is more, time-consuming, and in order to lift testing efficiency, the present embodiment is using duplexing bit test mould Formula, that is, be equipped with two device for testing functions 4, this two device for testing functions 4 can be with one piece of complete independently or polylith electricity to be measured The functional test of road plate 7, will specifically be described in detail in following method of testing.Certainly, the present invention according to the actual requirements, may be used also To set three, many device for testing functions such as four.
With reference to Fig. 7, above-mentioned identity device 5 includes mark cylinder 52 and mark chapter 53, and main control unit is according to test result Control mark cylinder 52 is acted, and the mark driving mark chapter 53 of cylinder 52 carries out mark of affixing one's seal to circuit board under test 7.Described here Test result combines the test result and the function of circuit board under test 7 of the foregoing measurement of the display characteristics of circuit board under test display screen 71 The test result of test, any of which one it is unqualified i.e. be determined as it is unqualified, specifically will in following method of testing in detail State.
Multiple host computers and multiple controllers that above-mentioned main control unit includes server 8, is connected with the server 8, its In multiple host computers be respectively programming control host computer 21, measurement of the display characteristics host computer 31 and functional test host computer 41, Multiple controllers are respectively programming controller 25, measurement of the display characteristics controller 34, functional test controller 43 and mark control Device 51, programming control host computer 21 and programming controller 25 are arranged on programming device 2, measurement of the display characteristics host computer 31 and aobvious Show that performance test controller 34 is arranged on measurement of the display characteristics device 3, functional test host computer 41 and functional test controller 43 are arranged on device for testing functions 4, and mark controller 51 is arranged in identity device 5.In programming device 2, in programming control Set up and communicated by programming control panel 22 between position machine 21 and programmable device 23;In measurement of the display characteristics device 3, display performance is surveyed Set up and communicated by measurement of the display characteristics control panel 32 between examination host computer 31 and circuit board under test 7;In device for testing functions 4 In, set up and communicated by functional test control panel 42 between functional test host computer 41 and circuit board under test 7.
Programming device 2 is provided with programming tool, and measurement of the display characteristics device 3 is provided with display measurement jig, functional test Device 4 is provided with function test fixture, and identity device 5 is controlled by corresponding controller provided with mark tool, these tools, from And realize that judgement, positioning/conveying circuit board under test 7 etc. are acted in place.Controller noted above is preferably PLC, it is possible to achieve Complicated control function, especially needs to be controlled multiple test steps and tool in embodiments of the present invention, utilizes It is reliable that the powerful control function of PLC ensures to test progress, tool having stable behavior in order.Intelligent test system of the present invention Concrete operating principle and workflow will be described in detail in following method of testing.
In order that between programming device 2, measurement of the display characteristics device 3, device for testing functions 4 and identity device 5 preferably Linking, the present embodiment is between programming device 2 and measurement of the display characteristics device 3, measurement of the display characteristics device 3 and functional test are filled Connection platform 6 is provided between putting 4, between device for testing functions 4 and identity device 5, connection platform 6 is used for will the outflow of a upper process The automatic transport of circuit board under test 7 to subsequent processing, and when subsequent processing is in running order, circuit board under test can be cached 7, it is ensured that whole testing process is carried out in order.Certainly, in other embodiments, programming device, measurement of the display characteristics device, function It can also directly be connected between test device and identity device, can so save equipment cost and equipment arrangement space.
Reference picture 1-7, measuring instrument circuit board intelligent test method proposed by the present invention passes through above-mentioned measuring instrument electricity Road plate intelligent test system is tested, and intelligent test method includes:
Programming process, circuit board under test 7 is entered by programming device 2 by function program programming;
By aobvious in test step, including measurement of the display characteristics process and functional test process, measurement of the display characteristics process Show that performance testing device 3 is tested to test by device for testing functions 4 in the display performance of circuit board under test 7, functional test process The test result of the function of circuit board under test 7, measurement of the display characteristics process and functional test process uploads and is stored in master control list Member;
Process is identified, the test result that identity device 5 is stored according to main control unit is identified to circuit board under test 7.
Reference picture 4, wherein, include the step of programming process:
Main control unit sends programming to programmable device 23 by programming control panel 22 and instructed;
Programmable device 23 instructs according to programming program writing circuit board under test 7.
Specifically, in programming device 2, programming tool includes track belt, track cylinder, programming needle-bar, baffle plate, gear Plate cylinder, pressing plate, pressing plate cylinder, front end sensors and sensors in place;In programming process, when slab feeding mechanism 1 is by electricity to be measured After the feeding programming device 2 of road plate 7, circuit board under test 7 is by track Belt Conveying to region to be measured;Treated when circuit board under test 7 enters Survey region after, front end sensors are triggered, the controlling baffle plate cylinder of programming controller 25 action, baffle plate cylinder driving baffle plate rise into Enter region to be measured;Sensors in place is triggered when circuit board under test 7 touches baffle plate, the control track belt of programming controller 25 stops Operation, and control track cylinder to act, decline track belt, at the same time, programming controller 25 also controls pressing plate cylinder, makes Pressing plate is pushed, and when track belt is declined in place, circuit board under test 7 is clamped between track belt and pressing plate, it is ensured that circuit under test The programming interface of plate 7 and programming needle-bar reliable contacts, the subsequent controlling baffle plate of programming controller 25 reset.
Programming needle-bar connects foregoing control switching circuit 24 by lead, circuit board under test 7 in place after, programming control Device 25 sends programming instruction to programming control panel 22, and programming instruction is sent to programmable device 23, programmable device 23 by programming control panel 22 Enter circuit board under test 7 by controlling switching circuit 24 by the function program programming write, programming control is replied after the completion of programming The end signal of host computer 21 processed, programming success is judged whether by programming control host computer 21, and programming success is indicated with green light, if Programming failure is then indicated with red light, and repeats programming, until programming success;Reply and burn after the whole programming of circuit board under test 7 successes Write control host computer 21 and complete signal, the control pressing plate cylinder action of programming controller 25 rises pressing plate, then control track skin Tape starting, sends the good circuit board under test 7 of programming into test step.
Reference picture 5, measurement of the display characteristics process includes:
Main control unit sends idsplay order, the electricity to be measured by measurement of the display characteristics control panel 32 to circuit board under test 7 Road plate 7 is shown according to idsplay order control display screen 71;
The display performance of acquisition module collection display screen 71 is simultaneously uploaded to main control unit;
Main control unit is contrasted information is gathered with prestored information, to judge the display of the display screen 71 of circuit board under test 7 Whether performance is qualified.
Specifically, in measurement of the display characteristics device 3, display measurement jig includes track belt, track cylinder, display Test needle-bar, baffle plate, baffle plate cylinder, pressing plate, front end sensors and sensors in place;Pressing plate be fixed on track belt and with The lifting of track belt one.Measurement of the display characteristics is first carried out in test step:The circuit board under test 7 sent out by programming device 2 leads to Track Belt Conveying is crossed to region to be measured;After circuit board under test 7 enters region to be measured, front end sensors are triggered, display property Energy test controller 34 controlling baffle plate cylinder action, baffle plate cylinder driving baffle plate ascends into region to be measured;When circuit board under test 7 Sensors in place is triggered during touching baffle plate, the control track belt of measurement of the display characteristics controller 34 is out of service, and controls track Cylinder is acted, and declines track belt, because pressing plate is fixed on track belt, pressing plate pushes down the both sides of circuit board under test 7 with rail Road belt declines together, until the display test interface of the probe contact measured circuit board 7 of display test needle-bar, track belt stops Only decline.
Display test needle-bar connects foregoing measurement of the display characteristics control panel 32 by lead, in circuit board under test 7 in place Afterwards, measurement of the display characteristics controller 34 is instructed to the output display of measurement of the display characteristics control panel 32, measurement of the display characteristics control panel Idsplay order is sent to circuit board under test 7 by 32, and circuit board under test 7 is shown according to idsplay order control display screen 71, is Ensure the accuracy of test, usually require that display screen 71 sequentially shows multiple different numerals, such as test program setting is aobvious Display screen 71 shows 8 successively, 2,6 three numerals, in actual test, only display screen 71 in that same order complete display 8,2, 6 three numeral it is just qualified, if display order mistake, show numeric error or display brightness/color it is defective be not It is qualified;Display screen 71 often shows a numeral, and camera 33 all carries out once photo taking, and image data is uploaded on measurement of the display characteristics Position machine 31, to the image data of upload and the standard information prestored according to above-mentioned criterion in measurement of the display characteristics host computer 31 Contrasted, thus judge whether the display performance of circuit board under test 7 is qualified.
Test result is understood in time for ease of tester, measurement of the display characteristics host computer 31 is additionally provided with display, show The test result that performance test host computer 31 is drawn can be shown by display, be tested simultaneously there is polylith circuit board under test 7 In the case of, this polylith circuit board under test 7 can be successively numbered, on the test program interface of display, by correspondence The test result of the circuit board under test 7 of numbering is identified, qualified to be shown with green light, unqualified, is shown with red light.It is unqualified Reason and picture are stored automatically, so that the later stage is reviewed, meanwhile, these test datas can also upload onto the server 8, so as to Subsequent calls, judgement, mark.
After the completion of measurement of the display characteristics, reply measurement of the display characteristics host computer 31 and complete signal, measurement of the display characteristics control The control track cylinder action of device 34, rises track belt, then control track belt starts, and circuit board under test 7 is sent into work( Can device for testing functions 4.
In some other embodiments, acquisition module uses camera, also can be according to above-mentioned testing process, but images Head, which only need to once be shot, can just include all display contents, and be shot using camera, it is possible to achieve circuit board display screen The dynamic seizure of display performance, it is possible thereby to the information that static images can not be captured be obtained, so as to be also easier to discovery circuit Plate display screen is potential, be difficult the defect that is arrived by manual observation.
Reference picture 6, functional test process includes:
Main control unit is tested to the sending function of circuit board under test 7 by functional test control panel 42 and instructed;
Circuit board under test 7 is instructed according to functional test to carry out functional test and test result is returned back into master control list item by item Member;
Main control unit will judge whether the various functions of circuit board under test 7 are qualified according to return information.
Specifically, in device for testing functions 4, function test fixture includes track belt, track cylinder, functional test Needle-bar, baffle plate, baffle plate cylinder, pressing plate, pressing plate cylinder, front end sensors and sensors in place, by measurement of the display characteristics device 3 The circuit board under test 7 of submitting passes through track Belt Conveying to region to be measured, after circuit board under test 7 enters region to be measured, front end Sensor is triggered, the action of the controlling baffle plate cylinder of functional test controller 43, and baffle plate cylinder driving baffle plate ascends into area to be measured Domain;Sensors in place is triggered when circuit board under test 7 touches baffle plate, the control track belt of functional test controller 43 stops fortune OK, and control track cylinder act, make track belt decline, at the same time, programming controller 25 also controls pressing plate cylinder, makes pressure Plate is pushed, and when track belt is declined in place, circuit board under test 7 is clamped between track belt and pressing plate, it is ensured that circuit board under test 7 Functional test interface and functional test needle-bar reliable contacts, the subsequent controlling baffle plate of functional test controller 43 resets.
Functional test needle-bar connects foregoing functional test control panel 42 by lead, circuit board under test 7 in place after, work( Energy test controller 43 is tested to the output function of functional test control panel 42 and instructed, and functional test control panel 42 refers to functional test Order is sent to circuit board under test 7, and circuit board under test 7 is instructed according to functional test to carry out functional test and return test result item by item Again to functional test host computer 41, in test process, circuit board under test 7 is surveyed with the one-to-one connection of functional test control panel 42 Examination, such as eight pieces circuit board under test 7 are tested simultaneously, therewith to that should have eight pieces of functional test control panels 42, every block of electricity to be measured One piece of functional test control panel of the correspondence of road plate 7 42 is independent to be tested, and is not disturbed each other.Repertoire test is by being then It is qualified, as one of which or several functional tests not if to be unqualified.Functional test is understood in time for ease of tester As a result, functional test host computer 41 is additionally provided with display, and the functional test results that functional test host computer 41 is drawn can pass through Display is shown.Meanwhile, these functional test results can also upload onto the server 8, so as to subsequent calls, judgement, mark.
The present embodiment is provided with two device for testing functions 4, and two device for testing functions 4 are connected successively, sets above Device for testing functions 4 is the first functional test station, and device for testing functions 4 below is the second functional test station, in order to true The functional test controller 43 protected on the progress functional test in order of this two device for testing functions 4, every device for testing functions 4 is sentenced Break the working condition of the functional test station, if in test process, judging the second functional test station for idle condition, then the One functional test station enters pass-through state:When circuit board under test 7 enters the first functional test station, corresponding function test device Function test fixture on 4 is failure to actuate, and the circuit board under test 7 is directly entered the second functional test station;Second functional test While station carries out functional test, then when having the first functional test station of feeding of circuit board under test 7, still first judge the second function The working condition of test station, if the second functional test station is idle condition, makes circuit board under test 7 straight by above-mentioned setting Tap into the second functional test station, if the second functional test station is test mode, the circuit board under test 7 subsequently sent into Tested in the first functional test station, so make full use of two device for testing functions 4 to carry out functional test, lifting in order Functional test efficiency.In some other embodiments, if setting three, the more device for testing functions such as four, also may be used Tested according to above-mentioned setting process.
After the completion of functional test, recovery function performance test host computer completes signal, the control rail of functional test controller 43 Road cylinder action, rises track belt, and then control track belt starts, and circuit board under test 7 is sent into identity device 5.
, can also be by the position pair of device for testing functions and measurement of the display characteristics device in some other embodiments Adjust, first carry out functional test, then carry out measurement of the display characteristics.
Reference picture 7, mark process in, mark tool include track belt, baffle plate, baffle plate cylinder, front end sensors with And sensors in place, the circuit board under test 7 sent out by device for testing functions 4 is by track Belt Conveying to region to be marked, when treating Slowdown monitoring circuit plate 7 enters behind region to be measured, and front end sensors are triggered, the controlling baffle plate cylinder action of mark controller 51, baffle plate gas Cylinder driving baffle plate ascends into region to be marked;Sensors in place is triggered when circuit board under test 7 touches baffle plate, controller 51 is identified Control track belt out of service;Mark controller 51 communicates with server 8, in the test step stored in reading service device 8 The numbering of circuit board under test 7, to should the measurement of the display characteristics of numbering circuit board under test display screen 71 test result and function The test result of test, if the measurement of the display characteristics of display screen 71 and functional test are all qualified, the mark control mark of controller 51 Know cylinder 52 to act, mark cylinder 52 drives mark chapter 53 to affix one's seal circuit board under test 7, if the display performance of display screen 71 One of test and functional test are unqualified, then do not affix one's seal.After the completion of mark, mark controller 51 controlling baffle plate resets, together Shi Qidong track belts, identity device 5 is sent out by circuit board under test 7.
Thus, the whole testing process of the present embodiment intelligent test system terminates substantially, the electricity to be measured that identity device 5 is sent out Road plate 7 can be sorted and cased by artificial or machine, and qualified circuit board enters instrument assembling procedure, and unqualified circuit board turns Overhaul process is delivered to be analyzed and processed.Whole testing process realizes self-feeding, automatic test, automatic mark, and centre need not Manual intervention, improves testing efficiency, reduces operating personnel, it is to avoid artificial erroneous judgement.
Embodiment two
Reference picture 8-10, the measuring instrument circuit board intelligent test system that the present embodiment is proposed, including,
Programming device 2, for function program programming to be entered into circuit board under test 7;
Measurement of the display characteristics device 3, is tested for the display performance to circuit board under test 7;
Device for testing functions 4, is tested for the function to circuit board under test 7;
Identity device 5, the test result of comprehensive the measurement of the display characteristics device 3 and device for testing functions 4 is to electricity to be measured Road plate 7 is identified;
The slab feeding mechanism 1 being connected with programming device 2, slab feeding mechanism 1 is used to circuit board under test 7 sending into programming device 2;
Main control unit, for controlling programming device 2, measurement of the display characteristics device 3, device for testing functions 4, identity device 5 With the operation of slab feeding mechanism 1.
What it is different from embodiment one is:The intelligent test system of the present embodiment is additionally provided with for positioning circuit board under test 7 Circuit board under test 7 is sent into programming device 2 by bracket 11, slab feeding mechanism 1 by bracket 11.In addition, the present embodiment additionally uses spelling Plate is designed, i.e., at least two pieces circuit board under test 7 are connected as overall (held between adjacent two pieces of circuit board under test 7 side by side before testing Portion is connected, centre separation), circuit board under test 7 is carried using bracket 11, can keep flat in the course of conveying of circuit board under test 7 Surely, it is ensured that exactitude position when programming and follow-up test, lifting programming success rate and testing reliability are contributed to;Bracket 11 is also Play a part of protecting circuit board under test 7, it is to avoid circuit board under test 7 is damaged by equipment shock.Jigsaw design can be realized The Integral synchronous test of polylith circuit board under test 7, gives full play to the power of test of test equipment, improves testing efficiency, Er Qieduo Block circuit under test is connected as after entirety, it is easier to positioned, convenient test.
Eight pieces of circuit board under test 7 are connected as entirety by the present embodiment side by side before testing, are placed on bracket 11, bracket 11 Surrounding designs multiple positioning holes 111, to be positioned in programming, test, identification procedure with corresponding tool.Others one In a little embodiments, jigsaw quantity can be increased and decreased according to test request.
The intelligent test system of the present embodiment also includes being used to be separated the circuit board under test 7 after mark with bracket 11 Bracket separator 91, bracket separator 91 include lifting platform, the sucker above lifting platform and guiding sucker motion Sucker guide rail, sucker suction circuit board under test 7 simultaneously coordinates lifting platform to separate bracket 11 with circuit board under test 7.Specifically, Bracket separator 91 is connected the outlet of foregoing identity device 5, and identity device 5 sends into the bracket 11 for carrying circuit board under test 7 Bracket separator 91, when bracket 11 delivers to lifting platform, lifting platform rises, while sucker declines the aobvious of absorption circuit board under test 7 Display screen 71 is simultaneously lifted, and circuit board under test 7 is separated with bracket 11;It is connected with back between bracket separator 91 and slab feeding mechanism 1 Trajectory road, the bracket 11 after separation returns to slab feeding mechanism 1 by the track that flows back;The sucker of circuit under test is adsorbed along sucker guide rail The track belt at rear is moved to, sucker discharges circuit board under test 7 to track belt;Because the present embodiment is set using jigsaw Meter, bracket separator 91 sends out the jigsaw that eight pieces of circuit board under test 7 are connected as a single entity, and the intelligent test system of the present embodiment is also wrapped Include cutting device 92, the outlet of the linking bracket of cutting device 92 separator 91, the jigsaw feeding point separated from bracket 11 Cutting apparatus 92, the cutting knife being arranged in pairs in cutting device 92 cuts off the connection side of jigsaw both sides, and thus jigsaw is cut as eight The circuit board of block independence, followed by processes such as sorting, vannings.
The automatic separation for realizing bracket 11 and circuit board under test 7 after the completion of test, mark of the scheme of the present embodiment, without Artificial operation, saves labour;It is veneer to be cut jigsaw by cutting device 92, also without manually operate, it is to avoid people's work point The problems such as cutting the circuit board damage being likely to result in, while also saving labour.
Certainly, in some other embodiments, bracket can also be not provided with, and utilizes the locating clip of test device itself Tool is positioned to circuit board under test;If test system uses single-board testing, cutting device need not be also set.
The embodiment of the present invention can apply the circuit board testing of all kinds of intelligent gas meters.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and is familiar with The those skilled in the art should be understood that the present invention includes but is not limited to accompanying drawing and interior described in embodiment above Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.

Claims (10)

1. measuring instrument circuit board intelligent test system, it is characterised in that:Including,
Programming device, for function program programming to be entered into circuit board under test;
Measurement of the display characteristics device, is tested for the display performance to circuit board under test;
Device for testing functions, is tested for the function to circuit board under test;
Identity device, the test result of comprehensive the measurement of the display characteristics device and device for testing functions is carried out to circuit board under test Mark;
The slab feeding mechanism being connected with programming device, slab feeding mechanism is used to circuit board under test sending into programming device;
Main control unit, for controlling programming device, measurement of the display characteristics device, device for testing functions, identity device and sending trigger The operation of structure.
2. measuring instrument circuit board intelligent test system as claimed in claim 1, it is characterised in that:The programming device includes Programming control panel and programmable device, the programming instruction that the programmable device is sent according to programming control panel enter function program programming to be measured Circuit board.
3. measuring instrument circuit board intelligent test system as claimed in claim 1, it is characterised in that:The measurement of the display characteristics Device includes measurement of the display characteristics control panel and acquisition module, and the circuit board under test is provided with display screen, the circuit board under test Shown according to the idsplay order control display screen that measurement of the display characteristics control panel is sent, the acquisition module gathers display screen Display performance and be uploaded to the main control unit.
4. measuring instrument circuit board intelligent test system as claimed in claim 3, it is characterised in that:The acquisition module is phase Machine, the camera is taken pictures to the display performance of display screen and image data is uploaded into the main control unit;Or it is described Acquisition module is camera, and the camera is shot to the display performance of display screen and video data is uploaded into the master Control unit.
5. measuring instrument circuit board intelligent test method, it is characterised in that entered by measuring instrument circuit board intelligent test system Row test, the intelligent test system includes programming device, measurement of the display characteristics device, device for testing functions, identity device, master Control unit and the slab feeding mechanism being connected with programming device, the main control unit are used to control programming device, measurement of the display characteristics dress Put, the operation of device for testing functions, identity device and slab feeding mechanism, the intelligent test method includes:
Programming process, circuit board under test is entered by programming device by function program programming;
By aobvious in test step, including measurement of the display characteristics process and functional test process, the measurement of the display characteristics process Show that performance testing device is tested to test by device for testing functions in the display performance of circuit board under test, the functional test process The test result of the function of circuit board under test, measurement of the display characteristics process and functional test process uploads and is stored in master control list Member;
Process is identified, the test result that identity device is stored according to main control unit is identified to circuit board under test.
6. measuring instrument circuit board intelligent test method as claimed in claim 5, it is characterised in that:The programming device includes The step of programming control panel and programmable device, programming process, includes:
Main control unit sends programming to programmable device by programming control panel and instructed;
Programmable device instructs according to programming program writing circuit board under test.
7. measuring instrument circuit board intelligent test method as claimed in claim 5, it is characterised in that:The measurement of the display characteristics Device includes measurement of the display characteristics control panel and acquisition module, and the circuit board under test is provided with display screen, and the display performance is surveyed Trial work sequence includes:
Main control unit by measurement of the display characteristics control panel to circuit board under test send idsplay order, the circuit board under test according to Idsplay order control display screen is shown;
The display performance of acquisition module collection display screen is simultaneously uploaded to main control unit;
Main control unit by gather information contrasted with prestored information, with judge circuit board under test display screen display performance whether It is qualified.
8. measuring instrument circuit board intelligent test method as claimed in claim 5, it is characterised in that:The device for testing functions Including functional test control panel, the functional test process includes:
Main control unit is tested to circuit board under test sending function by functional test control panel and instructed;
Circuit board under test is instructed according to functional test to carry out functional test and test result is returned back into main control unit item by item;
Main control unit will judge whether circuit board under test various functions are qualified according to return information.
9. measuring instrument circuit board intelligent test method as claimed in claim 5, it is characterised in that:In the test step, Measurement of the display characteristics process is first carried out, then carries out functional test process;Or, in the test step, first carry out functional test Process, then carry out measurement of the display characteristics process.
10. the measuring instrument circuit board intelligent test method as described in one of claim 5 to 9, it is characterised in that:The function Test step the functional test of circuit board under test is included upper electric function of current test, voltage function test, valve opening functional test, Warning function test, tally function test, pass valve functional test, GPRS functional tests, infrared functional test, self-checking function are surveyed At least one of examination, quiescent current functional test, power down functional test and LED function test.
CN201710277139.4A 2017-04-25 2017-04-25 Measuring instrument circuit board intelligent test system and intelligent test method Pending CN106970318A (en)

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