CN106405375A - Multipath resistance and voltage testing method, device and system - Google Patents
Multipath resistance and voltage testing method, device and system Download PDFInfo
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- CN106405375A CN106405375A CN201610788617.3A CN201610788617A CN106405375A CN 106405375 A CN106405375 A CN 106405375A CN 201610788617 A CN201610788617 A CN 201610788617A CN 106405375 A CN106405375 A CN 106405375A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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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 provides a multipath resistance and voltage testing device comprising a single-chip microcomputer, a resistance testing module, a voltage testing module, a channel switching module and a testing interface, wherein the testing interface is connected with the channel switching module, a product to be tested is connected with the testing interface, channels in the channel switching module respectively correspond to points to be tested in the product to be tested, the channel switching module is connected with the resistance testing module and the voltage testing module, and the single-chip microcomputer is connected with the resistance testing module and the voltage testing module. The invention also provides a multipath resistance and voltage testing method. Via the multipath resistance and voltage testing method and device, automatic resistance and voltage testing of a power source test point of a circuit board can be realized, product manufacture efficiency can be greatly improved, and production cost can be effectively lowered.
Description
Technical field
The present invention relates to circuit testing technology field, more particularly, to a kind of multichannel resistance voltage test method, device and
Test system.
Background technology
The circuit-board card of electronic product, in test, generally only carries out the voltage tester of test point, is tested at present
The resistance test of point, and test voltage needs the artificial test point one by one of test man to be tested, and so there is following lacking
Point：Directly go up electrical testing voltage once, the non-test resistance of board, there is the risk that board is burnt in short circuit；2nd, artificial operation, raw
Product efficiency is very low, and production cost is higher；3rd, artificial operation, is susceptible to test leakage and is surveyed with wrong, causing trouble plate fails to detect, and makes
The loss of Cheng Geng great and (or) security incident；4th, there is probability operational error, test pencil imprudence rides over two in artificial operation
On pin, short circuit is caused to lead to board to burn.
Disclose a kind of ADSL line tester in prior art, see the Chinese patent of Publication No. " 102487336A ",
This invention invention includes single-chip microcomputer, two power modules, voltage measurement module, resistance measuring module, current measurement module electric capacity
Measurement module, main logic module, the digital signal processing module of DSL, the ethernet module of ADSL, the predriver of ADSL, display
And input module, internal memory, switch and module.This invention can carry out multitask work, and test setting, test result can be deposited
Storage, deletion and power-failure memory, up to 7 test setting storages, 100 test results storages.This documents is with the application's
Technical field is different, and the document is only applicable to adsl line, and its applicable surface is very narrow, and the document is applied to adsl line and installs and dimension
Use during shield, present patent application is applied to use during the manufacturing of electronic product.
In addition, the test point of this documents is adsl line, only 1 to i.e. single-spot testing, its test of present patent application
Point is multipair, i.e. multiple spot, and can be extended by interface.On the patent point of present patent application than more prominent be many
Point test, needs to realize the intelligence switching of multiple test points by Single-chip Controlling coding and decoding drives relay matrix,
Voltage and resistance test can be carried out to the multiple tested points on one piece of product to be measured simultaneously.
Content of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of multichannel resistance voltage test device, by passage
Handover module can detect multigroup resistance value and/or magnitude of voltage simultaneously, enables resistance and the voltage automatization of circuit board tested point
Test, is significantly increased the production efficiency of product, is effectively reduced production cost.
One of present invention problem is realized in：A kind of multichannel resistance voltage test device, mechanical, electrical including monolithic
Resistance test module, voltage test module, gear switch module, channel switching module and test interface, described test interface with
Channel switching module connects, and product to be measured is connected with test interface, the passage in channel switching module respectively with product to be measured
In tested point correspond to；Described channel switching module is connected with described resistance test module, voltage test module respectively, described list
Piece machine is connected with described gear switch module, resistance test module, voltage test module respectively.
Further, described channel switching module is provided with passage corresponding with each pin of test interface, and test interface draws
Foot is corresponding with the tested point in product to be measured respectively.
Further, described channel switching module is relay array, and each relay is two paths.
Further, the multichannel resistance voltage test device of the present invention also includes gear switch module, described gear switching
Module is connected with single-chip microcomputer.
Further, the multichannel resistance voltage test device of the present invention also include following in one or more output
Unit：Display lamp, buzzer, voice broadcast module or LCD MODULE, described output unit is all connected with single-chip microcomputer, test
Result is presented by one or more output unit described.
Further, described device also includes：Keyboard input module and bar code scan module, described keyboard input module,
Bar code scan module is connected with single-chip microcomputer respectively, as input and output.
Further, described device also includes power supply module, real-time clock module and reset circuit, and described power supply supplies
Electric module power supply needed for device offer；Described real-time clock module and reset circuit are all connected with single-chip microcomputer, as device
Operation control center；Described real-time clock module provides real-time time for device.
The two of the technical problem to be solved in the present invention, are to provide a kind of multichannel resistance voltage test method, by passage
Handover module can detect multigroup resistance value and/or magnitude of voltage simultaneously；Enable resistance and the voltage automatization of circuit board tested point
Test, is significantly increased the testing efficiency of product, and then improves production efficiency, is effectively reduced production cost.
The two of present invention problem are realized in：A kind of multichannel resistance voltage test method, methods described need to carry
For single-chip microcomputer, resistance test module, voltage test module, channel switching module and test interface, described test interface with logical
Road handover module connects, and product to be measured is connected with test interface, the passage in channel switching module respectively with product to be measured in
Tested point correspond to；Described channel switching module is connected with described resistance test module, voltage test module respectively, described monolithic
Machine is connected with resistance test module, voltage test module respectively；
Described test interface connects the tested point of product to be measured, and resistance test module and/or voltage test module pass through to lead to
Road handover module tests tested point successively, and single-chip microcomputer judges according to the detected value of resistance test module and/or voltage test module
Whether Devices to test product is qualified.
Further, described method of testing also needs to provide gear switch module, and gear switch module is connected with single-chip microcomputer, institute
State method of testing to be specially：
Described test interface connects the tested point of product to be measured；
Described Single-chip Controlling channel switching module travels through all of tested point, is cut by Single-chip Controlling gear switch module
Change to suitable gear, resistance test module detects the resistance of each tested point of test interface connection by channel switching module
Value, and resistance value is compared with this tested point corresponding resistance preset standard value prestoring, judge whether product is qualified；
Described Single-chip Controlling channel switching module travels through all of tested point, and voltage test module switches mould by passage
Block detects the magnitude of voltage of each tested point that test interface connects, and will be pre- with the corresponding voltage of this tested point prestoring for magnitude of voltage
If standard value is compared, judge whether product is qualified.
Further, also include upper plate detection operation before described resistance test module or voltage test module test：
By resistance test, test the resistance of fc-specific test FC point, detect whether product to be measured is put well, if product to be measured is not
Put well, then exit test；If product to be measured is put well, carry out live detection；
By voltage tester, detect whether product to be measured is powered, if powered, exits test；As product to be measured without
Electricity, then enter resistance test module or the test of voltage test module.
Further, it also includes step：After test terminates, test result passes through one or more combinations following
Mode is shown：Test data is shown in LCD MODULE single-chip microcomputer, and is led to by serial communication interface or network
Test data is exported display interface by communication interface；Or point out by display lamp instruction or by buzzer warning；Or pass through language
Sound broadcasting module is reported.
Further, it also includes step：Test result is saved in host computer by network communication interface, then voice
Product to be measured is changed in broadcasting module prompting operation, enters the test of next block product.
Present invention also offers a kind of multichannel resistance voltage testing system, it includes needle-bar and described multichannel resistive voltage
Test device, described needle-bar is provided with thimble corresponding with tested point on Devices to test, and test interface is provided with and a pair of thimble 1
The pin answered, channel switching module is provided with passage corresponding with each pin of test interface, so that in channel switching module
Passage corresponding wherein one tested point respectively；During test, the thimble of needle-bar is connected with corresponding tested point, and needle-bar passes through test interface
It is connected with channel switching module.
The invention has the advantages that：Using after this device, it is possible to achieve the resistance of circuit board tested point is automatic with voltage
Change test, the production efficiency of product is significantly increased, is effectively reduced production cost, create significant economic benefit, special
It is not that effect becomes apparent under the higher and higher overall background of human cost；It is respectively adopted resistance test module, test voltage mould
Block is tested to each test point of product, can efficiently avoid burning plate accident and the person damage that artificial incorrect operation causes
Evil event, reduces accidental loss, can be effectively prevented from the careless omission such as artificial test leakage and wrong survey it is ensured that product quality, improve and produce
Quality and the market competitiveness.
Brief description
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the schematic flow sheet of the inventive method.
Fig. 3 is test system structure schematic diagram of the present invention.
Specific embodiment
Refer to shown in Fig. 1, a kind of multichannel resistance voltage test device, survey including single-chip microcomputer, resistance test module, voltage
Die trial block, channel switching module and test interface, described test interface is connected with channel switching module, and product to be measured with
Test interface connects, and the passage in channel switching module is corresponding with the tested point in product to be measured respectively；Described passage switches mould
Block is connected with described resistance test module, voltage test module respectively, and described single-chip microcomputer is surveyed with resistance test module, voltage respectively
Die trial block connects.Wherein, multigroup resistance value and/or magnitude of voltage can be detected by channel switching module simultaneously.
Wherein, described channel switching module is provided with passage corresponding with each pin of test interface, and test interface pin divides
Not corresponding with the tested point in product to be measured.Described channel switching module is relay array, and each relay is two paths.
Because relay adopts DPDT structure, so a relay can achieve two paths.In the present invention, described relay
Array can comprise the relay of more than 12, can the tested point of more than 24 be detected simultaneously, and can be by expanding
Exhibition interface, supports 72 test points to be tested simultaneously.
In a preferred embodiment, described device also includes gear switch module, described gear handover module and monolithic
Machine connects.In order that resistance detection is more accurate, allows the resistance value of each tested point to fall and detected in suitable gear, the present invention
It is also provided with gear switch module.For example, if the resistance of tested point is 15 ohm, 100 ohms ranges can be automatically selected, if
The resistance of tested point is 1500 ohm, by automatically selecting 2000 ohms ranges, so makes resistance test more accurate.
It is additionally provided with bleeder circuit, described bleeder circuit is 2 resistant series partial pressures, will test in described voltage test module
The voltage scale of point is divided into less voltage to be tested, it is to avoid single-chip microcomputer damages because input voltage is too high.
In the present invention described device also include following in one or more output unit：Display lamp, buzzer,
Voice broadcast module or LCD MODULE, described output unit is all connected with single-chip microcomputer, test result pass through described a kind of or
Two or more output units is presented.
Described device also includes：Keyboard input module and bar code scan module, described keyboard input module, bar code scan mould
Block is connected with single-chip microcomputer respectively, as input and output.Wherein, device also includes serial communication interface, network communication interface；Automatically
Change test device or host computer and pass through serial communication interface or network communication interface by the resistance of each test point of each product
It is saved in single-chip microcomputer with voltage preset standard value to be stored.
Described device also includes power supply module, real-time clock module and reset circuit, and described power supply module is
Power supply needed for device offer；Described real-time clock module and reset circuit are all connected with single-chip microcomputer, as the operation control of device
Center；Described real-time clock module provides real-time time for device.
Refer to shown in Fig. 2, a kind of multichannel resistance voltage test method of the present invention, methods described need to provide single-chip microcomputer,
Resistance test module, voltage test module, channel switching module and test interface, described test interface switches mould with passage
Block connects, and product to be measured is connected with test interface, the passage in channel switching module respectively with product to be measured in tested point
Corresponding；Described channel switching module is connected with described resistance test module, voltage test module respectively, described single-chip microcomputer respectively with
Resistance test module, voltage test module connect；
Described test interface connects the tested point of product to be measured, and resistance test module and/or voltage test module pass through to lead to
Road handover module tests tested point successively, and single-chip microcomputer judges according to the detected value of resistance test module and/or voltage test module
Whether Devices to test product is qualified.
Present invention additionally comprises serial communication interface, network communication interface；Automatic test device or host computer pass through serial ports
The resistance of each test point of each product and voltage preset standard value are saved in monolithic by communication interface or network communication interface
Machine is stored.
In a preferred embodiment, described method of testing also needs to provide gear switch module, gear switch module and list
Piece machine connects, and described method of testing is specially：
Described test interface connects the tested point of product to be measured；
Described Single-chip Controlling channel switching module travels through all of tested point, is cut by Single-chip Controlling gear switch module
Change to suitable gear, resistance test module detects the resistance of each tested point of test interface connection by channel switching module
Value, and resistance value is compared with this tested point corresponding resistance preset standard value prestoring, judge whether product is qualified；
Described Single-chip Controlling channel switching module travels through all of tested point, and voltage test module switches mould by passage
Block detects the magnitude of voltage of each tested point that test interface connects, and will be pre- with the corresponding voltage of this tested point prestoring for magnitude of voltage
If standard value is compared, judge whether product is qualified.
The voltage detecting of above-mentioned each tested point and resistance detection regardless of tandem, in the particular embodiment, can basis
The demand of concrete operations personnel carries out successively arranging.As long as when test process discovery wherein has resistance or the voltage of a tested point
When being more than preset value with the standard value deviation prestoring, judge that product is unqualified；Only all the resistance of tested point and voltage all accord with
Standardization value, product is just qualified.
Upper plate detection operation is also included before described resistance test module or voltage test module test：
By resistance test, test the resistance of fc-specific test FC point, detect whether product to be measured is put well, if product to be measured is not
Put well, then exit test；If product to be measured is put well, carry out live detection；
By voltage tester, test the voltage of fc-specific test FC point, detect whether product to be measured is powered, if powered, moves back
Go out test；As not charged in product to be measured, then enter resistance test module or the test of voltage test module.Above-mentioned resistance test and
Voltage tester order in no particular order.The product to be measured of the present invention can be the circuit board needing to test multipoint voltage or resistance.?
In some specific embodiments, described product to be measured can be mainboard.By aforesaid operations, can avoid not placing in product to be measured
Detected when good, thus leading to testing result to be inaccurate.Meanwhile, by the detection to product voltage to be measured, it is to avoid treat
Survey product and carry out the potential safety hazard that live detection brings to operator.
It also includes step：After test terminates, test result is carried out by way of one or more combinations following
Display：Test data is shown in LCD MODULE single-chip microcomputer, and is incited somebody to action by serial communication interface or network communication interface
Test data exports display interface；Or point out by display lamp instruction or by buzzer warning；Or pass through voice broadcast mould
Block is reported.In some specific embodiments, test result can be pointed out by buzzer warning, language can also be passed through simultaneously
Sound broadcasting module is reported, and such tester even can not see display screen, is known that test result, subsequently into next
Road is tested, and substantially increases testing efficiency.
Present invention additionally comprises step：Test result is saved in host computer by network communication interface, then voice broadcast
Product to be measured is changed in module prompts operation, enters the product test to be measured of next block product.The present invention is by test result
Preserve, convenient later return checks testing result.
With reference to an instantiation, the present invention will be further described：
(1) host computer passes through serial communication interface or network communication interface by the default electricity of each test point of each product
Pressure and resistance standard value are saved in single-chip microcomputer with tolerance limit value and are stored；(2) single-chip microcomputer is switched by passage, drives electricity
Road control relay array, realizes the automatic switchover of multiple test points；(3) traversal detects the resistance of each test point automatically, with
Preset resistance standard value is compared, and judges detection defective work；(4) automatically traversal detects the voltage of each test point, and pre-
If standard voltage value is compared, judge detection defective work；(5) can by network communication interface/serial communication interface with
Function Test Automation device or host computer carry out communication interaction；(6) test result can be by LED instruction, voice broadcast
Module, LCD MODULE or be uploaded to host computer and show etc. that various ways are presented at the scene；(7) test result is permissible
Preserve and upload on computer, realize the test record archive of product and electronization is reviewed.
Wherein, scm software operational process：1st, initialize：After device power, automatically carry out at the beginning of hardware and basic data
Beginningization；2nd, select product：Select product type by voice broadcast module prompts, then operated by keyboard input module and select
Product type to be tested, initializes the test parameter of this product type；3rd, bar code scan：Inputted by keyboard input module
[beginning] enters test mode, using the bar code of the tested mainboard of bar code scan module scans；4th, upper plate detection：Surveyed by resistance
Die trial block, the resistance of test fc-specific test FC point, whether detection mainboard is put well, if mainboard is not put well, voice reports an error and LED
Instruction, is then log out testing；5th, live detection, by voltage tester, detects whether mainboard is powered, if powered, voice reporting
Wrong and LED indicates, is then log out testing；6th, resistance test：If mainboard do not have powered, enter resistance test, by monolithic
Machine control passage handover module, travels through all of TCH test channel, and the nominal value parameter according to test point, by Single-chip Controlling shelves
Position handover module, is switched to suitable gear, the resistance value of each test point that detection test interface connects, with this test point phase
The preset resistance standard value answered is compared, and judges detection defective work, then sends out a warning and voice reports an error, and is then log out testing；
7th, voltage tester：If resistance test is all qualified, enters voltage tester, automatically give tested main board power supply, then by monolithic
Machine control passage handover module, travels through all of TCH test channel, the voltage of each test point of detection test interface, with this test
The corresponding predeterminated voltage standard value of point is compared, and judges detection defective work, then sends out a warning and voice reports an error, and is then log out surveying
Examination；8th, product electric discharge to be measured：It is completed, to electricity under product to be measured, be switched to discharge condition, to ensure the peace of product to be measured
Entirely；9th, in test process, test data is shown in LCD MODULE single-chip microcomputer, and passes through serial communication interface/network
Communication interface is by test data output display to computer terminal/host computer interface；10th, test result：It is completed, qualified viride nitens
Lamp, unqualified, send out a warning, test result is saved in by computer host computer by network communication interface, then voice broadcast module
Mainboard is changed in prompting operation, enters the test of next block mainboard.
As shown in figure 3, present invention also offers a kind of multichannel resistance voltage testing system, it includes needle-bar and described many
Road resistive voltage test device, described needle-bar is provided with thimble corresponding with tested point on Devices to test, test interface be provided with
The one-to-one pin of thimble, channel switching module is provided with passage corresponding with each pin of test interface, so that passage is cut
Passage in die change block corresponding wherein one tested point respectively；During test, the thimble of needle-bar is connected with corresponding tested point, and needle-bar leads to
Cross test interface to be connected with channel switching module.
The method of testing of multichannel resistance voltage testing system of the present invention is specially：
Described test interface connects needle-bar, and needle-bar connects the tested point of product to be measured by thimble；
Described Single-chip Controlling channel switching module travels through all of tested point, is cut by Single-chip Controlling gear switch module
Change to suitable gear, resistance test module passes sequentially through channel switching module, test interface, the thimble of needle-bar detect that each is treated
The resistance value of measuring point, and resistance value is compared with this tested point corresponding resistance preset standard value prestoring, judge product
Whether qualified；
Described Single-chip Controlling channel switching module travels through all of tested point, and voltage test module passes sequentially through passage and cuts
Die change block, test interface, the thimble of needle-bar detect the magnitude of voltage of each tested point, and by magnitude of voltage and this tested point phase prestoring
The voltage preset standard value answered is compared, and judges whether product is qualified.
Although the foregoing describing the specific embodiment of the present invention, those familiar with the art should manage
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, are familiar with this
Equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, all should cover the present invention's
In scope of the claimed protection.
Claims (13)
1. a kind of multichannel resistance voltage test device it is characterised in that：Including single-chip microcomputer, resistance test module, voltage tester mould
Block, channel switching module and test interface, described test interface is connected with channel switching module, and product to be measured and test
Interface connects, and the passage in channel switching module is corresponding with the tested point in product to be measured respectively；Described channel switching module is divided
Be not connected with described resistance test module, voltage test module, described single-chip microcomputer respectively with resistance test module, voltage tester mould
Block connects.
2. multichannel resistance voltage test device according to claim 1 it is characterised in that：Described channel switching module is provided with
Passage corresponding with each pin of test interface, test interface pin is corresponding with the tested point in product to be measured respectively.
3. multichannel resistance voltage test device according to claim 1 it is characterised in that：Described channel switching module is to continue
Electrical equipment array, each relay is two paths.
4. multichannel resistance voltage test device according to claim 1 it is characterised in that：It also includes gear switch mould
Block, described gear handover module is connected with single-chip microcomputer.
5. multichannel resistance voltage test device according to claim 1 it is characterised in that：Its also include following middle a kind of or
Two or more output units：Display lamp, buzzer, voice broadcast module or LCD MODULE, described output unit all with
Single-chip microcomputer connects, and test result is presented by one or more output unit described.
6. multichannel resistance voltage test device according to claim 1 it is characterised in that：Described device also includes：Button
Input module and bar code scan module, described keyboard input module, bar code scan module are connected with single-chip microcomputer, respectively as input
Output.
7. a kind of multichannel resistance voltage test device according to claim 1 it is characterised in that：Described device also includes electricity
Source supply module, real-time clock module and reset circuit, described power supply module power supply needed for device offer；Described real-time
Clock module and reset circuit are all connected with single-chip microcomputer, as the operation control center of device；Described real-time clock module is dress
Offer real-time time is provided.
8. a kind of multichannel resistance voltage test method it is characterised in that：Methods described need to provide single-chip microcomputer, resistance test module,
Voltage test module, channel switching module and test interface, described test interface is connected with channel switching module, and to be measured
Product is connected with test interface, and the passage in channel switching module is corresponding with the tested point in product to be measured respectively；Described passage
Handover module is connected with described resistance test module, voltage test module respectively, described single-chip microcomputer respectively with resistance test module,
Voltage test module connects；
Described test interface connects the tested point of product to be measured, and resistance test module and/or voltage test module are cut by passage
Die change block tests tested point successively, and single-chip microcomputer judges to be measured according to the detected value of resistance test module and/or voltage test module
Whether device product is qualified.
9. multichannel resistance voltage test method according to claim 8 it is characterised in that：Described method of testing also needs to provide
Gear switch module, gear switch module is connected with single-chip microcomputer, and described method of testing is specially：
Described test interface connects the tested point of product to be measured；
Described Single-chip Controlling channel switching module travels through all of tested point, is switched to by Single-chip Controlling gear switch module
Suitable gear, resistance test module detects the resistance value of each tested point of test interface connection by channel switching module,
And resistance value is compared with this tested point corresponding resistance preset standard value prestoring, judge whether product is qualified；
Described Single-chip Controlling channel switching module travels through all of tested point, and voltage test module is examined by channel switching module
Survey the magnitude of voltage of each tested point that test interface connects, and magnitude of voltage is marked with advance with the corresponding voltage of this tested point prestoring
Quasi- value is compared, and judges whether product is qualified.
10. multichannel resistance voltage test method according to claim 8 it is characterised in that：Described resistance test module or
Upper plate detection operation is also included before voltage test module test：
By resistance test, test the resistance of fc-specific test FC point, detect whether product to be measured is put well, if product to be measured is not put
Good, then exit test；If product to be measured is put well, carry out live detection；
By voltage tester, test the voltage of fc-specific test FC point, detect whether product to be measured is powered, if powered, exits survey
Examination；As not charged in product to be measured, then enter resistance test module or the test of voltage test module.
11. multichannel resistance voltage test methods according to claim 8 it is characterised in that：It also includes step：Test knot
Shu Hou, test result is shown by way of one or more combinations following：Test data is shown to by single-chip microcomputer
In LCD MODULE, and test data is exported by display interface by serial communication interface or network communication interface；Or it is logical
Cross display lamp instruction or pointed out by buzzer warning；Or reported by voice broadcast module.
12. multichannel resistance voltage test methods according to claim 8 it is characterised in that：It also includes step：To test
Result is saved in host computer by network communication interface, and then voice broadcast module prompts operation changes product to be measured, under entrance
The test of one piece of product.
A kind of 13. multichannel resistance voltage testing systems it is characterised in that：It includes needle-bar and claim 1-7 is any one described
Multichannel resistance voltage test device, described needle-bar is provided with thimble corresponding with tested point on Devices to test, and test interface sets
There is the one-to-one pin with thimble, channel switching module is provided with passage corresponding with each pin of test interface, so that logical
Passage in road handover module corresponding wherein one tested point respectively；During test, the thimble of needle-bar is connected with corresponding tested point, pin
Bed is connected with channel switching module by test interface.
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| CN201610788617.3A CN106405375A (en) | 2016-08-31 | 2016-08-31 | Multipath resistance and voltage testing method, device and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807279A (en) * | 2017-10-18 | 2018-03-16 | 河南鼎能电子科技有限公司 | Multistation resistance automatic testing equipment and its method of testing |
| CN107861051A (en) * | 2017-11-24 | 2018-03-30 | 江苏力德尔电子信息技术有限公司 | A kind of SCM Based universal precision impedance test system |
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| CN113030704A (en) * | 2021-03-11 | 2021-06-25 | 山东英信计算机技术有限公司 | Mainboard test equipment, method and system and readable storage medium |
| CN113376438A (en) * | 2021-07-12 | 2021-09-10 | 上海金东唐科技有限公司 | Multi-path small resistance test circuit and system |
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