CN106645831A - Wireless static testing device and corresponding wireless static testing method - Google Patents
Wireless static testing device and corresponding wireless static testing method Download PDFInfo
- Publication number
- CN106645831A CN106645831A CN201611061902.1A CN201611061902A CN106645831A CN 106645831 A CN106645831 A CN 106645831A CN 201611061902 A CN201611061902 A CN 201611061902A CN 106645831 A CN106645831 A CN 106645831A
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- China
- Prior art keywords
- tester
- shielded box
- test
- host computer
- coaxial
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
The present invention relates to a wireless static testing device and a method thereof. The device comprises shielding boxes, a tester, a computer host, a display screen and a coaxial switch. The shielding boxes comprise big shielding boxes and small shielding boxes; the shielding boxes are connected with each other through a shielding connection board; the big shielding box is internally provided with a computer host, the coaxial switch and the tester; the small shielding box is internally provided with a test tool and a detected circuit board; the coaxial switch is provided with an output end and two input ends; the input end is connected with the two big shielding boxes, and the output end is connected with the tester; the tester is connected with the computer host; the detected circuit board is arranged in the small shielding boxes for testing, the small shielding boxes are selected through the coaxial switch, and other small shielding boxes are configured for replacing to complete the test of the circuit board; and when the circuit boards in the small shielding boxes are tested, the circuit board to be detected in the small shielding boxes has be prepared to speed up. According to the structure, the interference of the radio frequency noise is avoided to the maximum extent, and the examination accuracy of the test board is improved.
Description
Technical field
The present invention relates to the wireless test field in field of industrial production, more particularly to industrial production, specifically refers to one kind
Wireless static tester and its method.
Background technology
Common wireless static test equipment is usually by two separate shielded boxes opened, a wireless network
Tester (such as the tester of Agilent 4010), RF coaxial switching switch, a host computer composition.After two shielded boxes
Face is respectively designed with " radio frequency coaxial-cable interface, RS232 interfaces, RJ45 network interfaces, power interface " with function of shielding.Two
The radio frequency coaxial-cable interface of shielded box is respectively connected to two groups of inputs of coaxial trigger, the output end of coaxial trigger
Access wireless network tester；Host computer and wireless network tester are directly attached using USB interface (according to being used
Tester difference, it is also possible to using RJ45 network interface connections.)；
It is test for circuit board to be put into the test process after shielded box in the circuit board and shielded box only having in shielded box
Fractional radio frequency's connecting line, Serial Port Line, netting twine etc. under shielding protection, it is other that " wireless network tester, coaxial switching are opened
Pass, test host computer " and all RF coaxial measurement circuits connected between them and interface, serial port connecting wire and string
Mouthful, the supply line of netting twine and RJ45 network interfaces, USB connecting lines and its interface and each equipment etc. it is complete all without being taken office
What shielding protection.Will necessarily thus there is the above is not subject to other external wireless by the various equipment and circuit of shielding protection
The problem of radiofrequency signal interference, if in the case that interference signal is sufficiently strong, the percent of pass meeting degradation of test affects production
Efficiency, or even production cannot be continued cause off-production accident.And the RF coaxial interface of shielded box, coaxial trigger,
And the shielding properties of the RF coaxial connecting line between them all has certain limitations.This will receive other wireless communications
Number interference while, its own can also reveal certain radio frequency signal, and other neighbouring wireless devices are interfered, from
And have influence on other test equipment work or test result.
Analyze by more than and illustrate, in several nearer workshops of same workshop or relative distance
If common wireless test apparatus more than many sets, then can cause between them it is very serious interfere with it is disturbed
Problem；Simultaneously the equipment of work is more will interfere more serious, and the test percent of pass of product will be lower, and original quality does not have
Problematic circuit board is just likely to be judged to defective products by mistake that production efficiency and quality management and control occur significant problem.
This is the intrinsic defect of common wireless static tester, and its own cannot solve this problem.
The content of the invention
In order to overcome above-mentioned the problems of the prior art, the present invention propose it is a kind of by whole subsets and whole circuits and
Its interface is all wrapped in shielded box, overcomes wireless static tester and its method without air interference.
The wireless static tester and its method of the present invention is specific as follows：
This is wireless static tester, including shielded box, tester and host computer, it is mainly characterized by, described survey
Examination instrument and host computer are placed in described shielded box, and described tester is connected with described host computer.
It is preferred that described wireless static tester also includes a coaxial switch, described coaxial switch is by described
Host computer is controlled, and described coaxial switch has an input and two output ends, described coaxial switch also with it is described
Tester be connected, described shielded box includes big shielded box and little shielded box, and the number of described big shielded box is 1,
The number of described little shielded box is described host computer, tester to be placed in 2, and described big shielded box and is coaxially opened
Close, a removable measurement jig is provided with described little shielded box, described big shielded box is by shielding metal connecting plate
It is connected with described little shielded box.
More preferably, described host computer and described tester are connected by USB port, two of described coaxial switch
Input is connected respectively by radio frequency coaxial-cable with the measurement jig in two described little shielded boxes, the coaxial switch
Output end is connected by radio frequency coaxial-cable with described wireless network tester.
More preferably, the survey in the tester of described big shielded box, host computer, coaxial switch and described little shielded box
Examination tool realizes connection by the interface being arranged on described shielding metal connecting plate, and described interface includes RF coaxial electricity
Cable interface, RS232 interfaces, RJ45 network interfaces and power interface, and described big shielded box rear side is provided with power interface and display
The video interface of device, described host computer is connected by the video interface and video line with a display, and the display
Outside big shielded box and little shielded box described in being placed in.
It is particularly preferred that described measurement jig is by described RS232 interfaces or RJ45 network interfaces and described host computer phase
Connection, and the measurement jig is same by radio frequency coaxial-cable, described coaxial switch and described radio frequency with described tester
Shaft cable interface is connected.
It is preferred that described tester is a wireless network tester.
Based on the method that devices discussed above realizes wireless static test, it is mainly characterized by, and described method has
Following steps：
(1) the wireless static tester initialization described in, a circuit-under-test plate is installed on described measurement jig, and
The host computer controls the measurement jig in a test mode by built-in software；
(2) measurement jig described in passes through the radio signal transmission of radio frequency coaxial-cable and coaxial switch circuit-under-test plate
To the wireless network tester in described big shielded box, described wireless network tester can measure the circuit-under-test
The respective radio-frequency parameter testing result of plate；
(3) wireless network tester described in surveys the radio frequency parameter test result for processing its circuit-under-test plate for receiving,
And gained test data is sent into described host computer；
(4) host computer described in receives the test data, and number is tested to obtained by as described built-in testing software
According to process is analyzed, judge whether the test board is qualified, if qualified, continue step (5)；Otherwise described host computer
Send alarm, and into step (5)；
(5) host computer described in controls described display and shows test and result of determination, and same described in controlling
Described wireless network tester is switched to and is connected with another described little shielded box by axle switch, and continues described step
(2)。
It is preferred that the wireless network tester described in described step (3) processes the radio frequency parameter test that it is received
As a result it is specially：
Described wireless network tester carries out Decoding Analysis process to described radio frequency parameter test result.
Using the wireless static tester and its method of this kind of structure, because it uses three Contiuum type shielded boxes, will
Tester, host computer, measurement jig, circuit-under-test plate, radio frequency coaxial cables and interface, coaxial switch, RS232 cables and connect
Mouth, the power cable between RJ45 cables and interface, shielding line and interface are placed in shielded box, and external interference signal does not have substantially
It is possible to causing any interference to test equipment and circuit-under-test plate into inside the shielding test device；And tested electricity
The radio frequency signal of road plate also has no idea to be leaked to and produces interference in the face of other equipment outward, it is therefore prevented that same workshop
Or if common wireless test apparatus more than many sets cause very tight in nearer several workshops of relative distance
Weight is interfered and disturbed problem, and overcomes that the product test percent of pass caused by the problem is low, production effect
Rate and the problem of quality management and control.
Description of the drawings
Fig. 1 is the wireless static tester Facad structure signal of the wireless static tester of the present invention and its method
Figure.
Fig. 2 is the wireless static tester side structure signal of the wireless static tester of the present invention and its method
Figure.
Fig. 3 be the present invention wireless static tester and its method little shielded box open when structural representation.
Fig. 4 is the wireless static tester annexation signal of the wireless static tester of the present invention and its method
Figure.
Reference
1 big shielded box
2 little shielded boxes
3 testers
4 host computers
5 displays
6 coaxial switches
Specific embodiment
In order to better illustrate technical scheme, name specific embodiment and further illustrate.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are referred to, this is wireless static tester, including shielded box, tester 3 and computer master
Machine 4, it is mainly characterized by, and described tester 3 and host computer 4 is placed in described shielded box, described shielding case and bag
Big shielded box 1 and little shielded box 2 are included, the number of described big shielded box 1 is 1, the number of described little shielded box 2 is 2,
And described host computer 4, tester 3 is placed in described big shielded box 1, and it is coaxial to be additionally provided with one in the big shielded box 1
Switch 6, the coaxial switch 6 is controlled by described host computer 4, described coaxial switch 6 have an input and two it is defeated
Go out end, two inputs of described coaxial switch 6 are respectively by radio frequency coaxial-cable and two described little shielded boxes 2
The removable measurement jig for arranging is connected, and the output end of the coaxial switch 6 is by radio frequency coaxial-cable and described test
Instrument 3 is connected, and described big shielded box 1 is connected by shielding metal connecting plate with described little shielded box 2.
Test in the tester 3 of described big shielded box 1, host computer 4, coaxial switch 6 and described little shielded box 3
Tool realizes connection by the interface being arranged on described shielding metal connecting plate, and described interface includes radio frequency coaxial-cable
Interface, RS232 interfaces, RJ45 network interfaces and power interface, and the described rear side of big shielded box 1 is provided with power interface and display
Video interface, described host computer 4 is connected by the video interface and video line with a display 5, and the display 5
Outside big shielded box 1 and little shielded box 2 described in being placed in.
In a kind of more preferably embodiment, described host computer 4 and described tester 3 is connected by USB port,
Described measurement jig is connected by described RS232 interfaces or RJ45 network interfaces with described host computer 4, and
The measurement jig passes through radio frequency coaxial-cable, described coaxial switch 6 and described radio frequency coaxial-cable with described tester 3
Interface is connected.
In a kind of embodiment preferably, described tester 3 is a wireless network tester.
Based on the method that devices discussed above realizes wireless static test, it is mainly characterized by, and described method has
Following steps：
(1) the wireless static tester initialization described in, a circuit-under-test plate is installed on described measurement jig, and
The host computer 4 controls the measurement jig in a test mode by built-in software；
(2) measurement jig described in passes the radiofrequency signal of circuit-under-test plate by radio frequency coaxial-cable and coaxial switch 6
The wireless network tester being defeated by described big shielded box 1, it is tested that described wireless network tester can measure this
The respective radio-frequency parameter testing result of circuit board；
(3) wireless network tester described in surveys the radio frequency parameter test result for processing its circuit-under-test plate for receiving,
The wireless network tester carries out Decoding Analysis process to described radio frequency parameter test result.And send gained test data
To described host computer 4；
(4) host computer 4 described in receives the test data, and number is tested to obtained by as described built-in testing software
According to process is analyzed, judge whether the test board is qualified, if qualified, continue step (5)；Otherwise described host computer
4 send alarm, and continue step (5)；
(5) host computer 4 described in controls the described display of display 5 and tests and result of determination, and described in controlling
Described wireless network tester is switched to and is connected with another described little shielded box 2 by coaxial switch 6, and described in continuing
Step (2).
In a particular embodiment, one big shielded box 1 of design, described little shielding are increased below little shielded box 2
It is connected by a shielding metallic plate between case 2 and big shielded box 1, and host computer 4 and corresponding tester 3 will be being loaded
In the big shielded box 1, except in the case of host computer 4 and tester 3 need to safeguard, the big shielded box 1 remains closing
State.New big shielded box 1 is actually and the little shielded box 2 of both the above designs what is be integrated, equivalent to 3 shielding case bodies,
Little shielded box 2 is also metallic shield with the joint face of big shielded box 1；Radio frequency coaxial-cable interface, RS232 serial ports, RJ45 network interfaces,
Power interface is all designed on the shielding metallic plate joint face of the big shielded box 1 and little shielded box 2, and coaxial switch 6 is also designed
Inside big shielded box 1, control, automatically control switching mode using host computer 4.So, the external interface of whole shielding case body
By multiple two interfaces of video interface for becoming only power interface and display 5, remaining includes tester 3, coaxial switching
Switch, test host computer 4 and all of radio frequency coaxial-cable and interface, RS232 serial ports and serial port connecting wire, RJ45 network interfaces
All exist completely with all of equipment such as netting twine, internal electric source interface and power line, USB interface and USB connecting lines and connection line
Within the protection of shielded box；And the interface between 3 casings is also all shielding isolation, this is caused between 3 shielding case bodies
Signal hardly mutually produce interference.The circuit that shielded box is connected with outside only has a power line and a display 5
VGA or HDMI video line, and this two lines and the interface of big shielding case body 1 are all using the process of corresponding signal shielding
Technology.This just make external interference signal several cannot into inside the shielding test device to test equipment and tested electricity
Road plate causes any interference；And the radio frequency signal of tested circuit board also has no idea to be leaked to outward in the face of other equipment
Produce interference.
In a kind of specific embodiment, described tester is the tester of Agilent 4010, or other wireless networks
Tester.
It is of the invention as follows with the actual contrast test experimental result of common test device：
Randomly select from non-defective unit storehouse and test the 100 pieces of PCBA circuit boards for passing through before for contrast experiment, in test device
Powerful signal generator is placed around, the wireless interference signal source consistent with circuit-under-test plate is sent.Initially with original general
Logical test device is tested, and test result passes through for 10 pieces, and 90 pieces do not pass through, and test percent of pass is only 10%；Then adopt
Test device of the present invention is tested this 100 pieces of circuit boards, and test result once passes through for 100 pieces of wholes, tests percent of pass
For 100%.The present invention has very important significance for the various production tests with wireless communication function product, can be true
Guarantor's production environment wireless signal will not be produced and interfered, and the erroneous judgement and repetition measurement produced because wireless signal is disturbed is greatly lowered
Problem.According to the interpretation of result of actually used contrast, single repetition measurement rate one that reduces can effectively improve production efficiency more than 30.Such as
Fruit all taking into account situations such as stopping line serious interference, it is left that the wireless static test synthesis efficiency of product can improve 50%
It is right.This is significant to radio network product improve production efficiency and reduction production cost.
Using the wireless static tester and its method of this kind of structure, because it uses three Contiuum type shielded boxes, will
Tester 3, host computer 4, measurement jig, circuit-under-test plate, radio frequency coaxial cables and interface, coaxial switch 6, RS232 cables
And the power cable and interface between interface, RJ45 cables and interface, shielding line is placed in shielded box, external interference signal base
This cannot cause any interference into inside the shielding test device to test equipment and circuit-under-test plate；And it is tested
The radio frequency signal of circuit board also have no idea to be leaked to and outer produce interference in the face of other equipment, it is therefore prevented that same production
If common wireless test apparatus more than many sets are caused in several nearer workshops of workshop or relative distance
Very serious interferes and disturbed problem, and it is low, raw to overcome the product test percent of pass caused by the problem
Produce the problem of efficiency and quality management and control.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still can make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
And it is nonrestrictive.
Claims (8)
1. a kind of wireless static tester, including shielded box, tester and host computer, it is characterised in that described test
Instrument and host computer are placed in described shielded box, and described tester is connected with described host computer.
2. wireless static tester according to claim 1, it is characterised in that described wireless static tester is also
Including a coaxial switch, described coaxial switch is controlled by described host computer, and described coaxial switch has an input
End and two output ends, described shielded box includes big shielded box and little shielded box, and the number of described big shielded box is 1,
The number of described little shielded box is described host computer, tester to be placed in 2, and described big shielded box and is coaxially opened
Close, a removable measurement jig is provided with described little shielded box, described big shielded box is by shielding metal connecting plate
It is connected with described little shielded box.
3. wireless static tester according to claim 2, it is characterised in that described host computer and described survey
Examination instrument is connected by USB port, and two inputs of described coaxial switch pass through respectively radio frequency coaxial-cable with described two
Measurement jig in little shielded box is connected, and the output end of the coaxial switch is by radio frequency coaxial-cable and described wireless network
Tester is connected.
4. wireless static tester according to claim 2, it is characterised in that the test in described big shielded box
Measurement jig in instrument, host computer, coaxial switch and described little shielded box is by being arranged at described shielding metal connection
Interface on plate realizes connection, and described interface connects including radio frequency coaxial-cable interface, RS232 interfaces, RJ45 network interfaces and power supply
Mouthful, and described big shielded box rear side is provided with the video interface of power interface and display, described host computer is by being somebody's turn to do
Video interface and video line are connected with a display, and the display is placed in outside described big shielded box and little shielded box.
5. wireless static tester according to claim 4, it is characterised in that described measurement jig is by described
RS232 interfaces or RJ45 network interfaces are connected with described host computer, and the measurement jig passes through radio frequency with described tester
Coaxial cable, described coaxial switch are connected with described radio frequency coaxial-cable interface.
6. wireless static tester according to claim 1, it is characterised in that described tester is a wireless network
Tester.
7. a kind of method that device based on described in any one of claim 1 to 6 realizes wireless static test, it is characterised in that
Described shielded box includes big shielded box and little shielded box, and described big shielded box is golden by a shielding with described little shielded box
Category connecting plate is connected, and the number of described big shielded box is 1, and the number of the little shielded box is 2, and the wireless static state
There is a coaxial switch, the coaxial switch is controlled by described host computer, and the coaxial switch includes two in test device
Input and an output end, the output end of described coaxial switch is connected with described tester, and the coaxial switch
Two inputs are connected respectively with the little shielded box described in two, there is one removable and tested in described little shielded box
The measurement jig that circuit board matches, described measurement jig is connected with described host computer, the measurement jig with it is described
Tester be connected, and described tester be in a wireless network tester, and described wireless static tester also
There is a display, the display is connected with described host computer, described method has steps of：
(1) the wireless static tester initialization described in, a circuit-under-test plate is installed on described measurement jig, and the electricity
Brain server controls the measurement jig in a test mode by built-in software；
(2) measurement jig described in passes through the radio signal transmission of radio frequency coaxial-cable and coaxial switch circuit-under-test plate to position
Wireless network tester in described big shielded box, described wireless network tester can measure the circuit-under-test plate
Respective radio-frequency parameter testing result；
(3) wireless network tester described in surveys the radio frequency parameter test result for processing its circuit-under-test plate for receiving, and will
Gained test data is sent to described host computer；
(4) host computer described in receives the test data, and is entered as described built-in testing software test data to obtained by
Row analyzing and processing, judges whether the test board is qualified, if qualified, continues step (5)；Otherwise described host computer sends
Alarm, and continue step (5)；
(5) host computer described in controls described display and shows test and result of determination, and coaxially opening described in controlling
Described wireless network tester is switched to and is connected with another described little shielded box by pass, and continues described step (2).
8. the method for realizing wireless static test according to claim 7, it is characterised in that institute in described step (3)
The wireless network tester stated processes its radio frequency parameter test result for receiving and is specially：
Described wireless network tester carries out Decoding Analysis process to described radio frequency parameter test result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061902.1A CN106645831A (en) | 2016-11-28 | 2016-11-28 | Wireless static testing device and corresponding wireless static testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061902.1A CN106645831A (en) | 2016-11-28 | 2016-11-28 | Wireless static testing device and corresponding wireless static testing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109270361A (en) * | 2018-10-10 | 2019-01-25 | 东莞华贝电子科技有限公司 | The SAR test device and method of mobile terminal |
| CN111896783A (en) * | 2020-07-10 | 2020-11-06 | 杭州斡维电子科技有限公司 | Coaxial switch module and coaxial scanning switch formed by same |
| CN112034223A (en) * | 2020-08-25 | 2020-12-04 | 杭州巨骐信息科技股份有限公司 | Isolation system between high-voltage circuit and data acquisition monitoring circuit |
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| CN109270361A (en) * | 2018-10-10 | 2019-01-25 | 东莞华贝电子科技有限公司 | The SAR test device and method of mobile terminal |
| CN109270361B (en) * | 2018-10-10 | 2024-04-26 | 东莞华贝电子科技有限公司 | SAR testing device and method for mobile terminal |
| CN111896783A (en) * | 2020-07-10 | 2020-11-06 | 杭州斡维电子科技有限公司 | Coaxial switch module and coaxial scanning switch formed by same |
| CN111896783B (en) * | 2020-07-10 | 2023-03-10 | 杭州斡维电子科技有限公司 | Coaxial switch module and coaxial scanning switch formed by same |
| CN112034223A (en) * | 2020-08-25 | 2020-12-04 | 杭州巨骐信息科技股份有限公司 | Isolation system between high-voltage circuit and data acquisition monitoring circuit |
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Address after: 523471 No. 1, Taoyuan 1st Road, village tail, Hengli Town, Dongguan City, Guangdong Province Applicant after: Guangdong Huazhuang Technology Co.,Ltd. Address before: 523460 Hengli Village Comprehensive Industrial Development Zone, Hengli Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN HUAZHUANG ELECTRONIC CO.,LTD. |
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Application publication date: 20170510 |