CN105659853B - A kind of radio frequency circuit board testing diagnosis equipment - Google Patents
A kind of radio frequency circuit board testing diagnosis equipmentInfo
- Publication number
- CN105659853B CN105659853B CN200710082827.1A CN200710082827A CN105659853B CN 105659853 B CN105659853 B CN 105659853B CN 200710082827 A CN200710082827 A CN 200710082827A CN 105659853 B CN105659853 B CN 105659853B
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- China
- Prior art keywords
- under
- test
- circuit
- blade
- switch
- Prior art date
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Abstract
The invention provides a kind of radio frequency circuit board testing diagnosis equipment, comprise test cell, General adaptive plate, matrix switch and four blade six throw switch and pci controller, wherein, test cell, for being connected by described matrix switch and four blade six throw switch and circuit-under-test plate, send test massage to circuit-under-test plate, and receive the signal that Board Under Test returns, by comparative analysis test result, carry out testing and diagnosing with circuit-under-test plate; General adaptive plate, for the adaptive and switching providing between testing diagnosis equipment and equipment under test; Matrix switch is connected medium and low frequency instrument by the respective pin of itself and four blade six throw switch and circuit-under-test plate under the control of pci controller; Four blade six throw switch is connected the respective pin of digital I/O and circuit-under-test plate under the control of pci controller. Radio frequency circuit board testing diagnosis equipment of the present invention, Test integration degree is high, cost compared with low, volume is little, lightweight, high-frequency test is functional.<pb pnum="1" />
Description
Technical field
The present invention relates to testing and diagnosing combination, particularly a kind of frequency is lower than the radio frequency circuit board of 100MHzTesting diagnosis equipment.
Background technology
Existing radio frequency circuit board testing diagnosis equipment adopts special adapter circuit plate and tester rank mostlyThe mode connecing realizes the testing and diagnosing to Board Under Test under the control of testing and diagnosing program. But,The shortcoming of this kind of mode is, every kind of radio frequency circuit board all needs to design a special adapter circuit plate to be come and surveysTest instrument is connected, and testing and diagnosing could be carried out radio frequency circuit board. Therefore, for radio frequency circuit boardTesting and diagnosing, just needs a large amount of adaptation boards, poor universality, inefficiency. If adopt tester warpBe connected with Board Under Test by matrix switch, utilize matrix switch to realize test and the diagnosis of radio frequency circuit board, forFrequency is feasible lower than the control of 1MHz signal, but to frequency the height between 1MHz-100MHzFrequently signal, due to the restriction of matrix self connected mode, easily there is branch in Signal transmissions, thus causes comparativelyLarge signal amplitude decay, indivedual frequencies are even decayed and are reached more than 10dB. The side of simple employing matrix switchThe testing and diagnosing weak effect of formula radio frequency circuit board, is difficult to the virtual condition of reflection circuit board.
Summary of the invention
The object of the invention is to, a kind of radio frequency circuit board testing diagnosis equipment is provided, and Test integration degree is high,Cost compared with low, volume is little, lightweight, high-frequency test is functional.
Radio frequency circuit board testing diagnosis equipment of the present invention, comprises test cell, General adaptive plate, matrix and opensClose and four blade six throw switch and pci controller, wherein, described test cell, comprise medium and low frequency instrument,Numeral I/O and radio frequency instrument, for passing through described matrix switch and four blade six throw switch and circuit-under-test plateConnect, send test massage to circuit-under-test plate, and receive the signal that Board Under Test returns, by comparative analysisTest result, carries out testing and diagnosing with circuit-under-test plate; Described General adaptive plate, for providing testing and diagnosingAdaptive and switching between device and equipment under test; Described matrix switch, will under the control of pci controllerMedium and low frequency instrument is connect by the respective pin of described matrix switch and four blade six throw switch and circuit-under-test plateLogical; Described four blade six throw switch, under the control of pci controller by the phase of digital I/O with circuit-under-test platePin is answered to connect; Described pci controller, for controlling four blade six throw switch, by circuit-under-test plate relevant tubePin and digital I/O related channel program are connected, and circuit-under-test plate is tested and diagnosed; And gating matrix is openedClose, medium and low frequency tester and matrix switch related column are connected, controlled four blade six throw switch, by tested electricityRoad plate relevant pins and matrix switch related column are connected, and circuit-under-test plate is tested and diagnosed; And controlCircuit-under-test plate relevant pins and radio frequency instrument are connected by four blade six throw switch processed, and circuit-under-test plate is surveyedExamination and diagnosis.
Wherein, described matrix switch is the switch matrix of 1MHz bandwidth 8 × 96 scale.
Wherein, described four blade six throw switch is 100MHz bandwidth 96 groups of four blade six throw switches.
In addition, motherboard is may further include, for described matrix switch being set by plug-in card mode thereonWith four blade six throw switch.
Wherein, extensions plate is provided with further described stating between motherboard and described General adaptive plate.
The invention has the beneficial effects as follows: according to radio frequency circuit board testing diagnosis equipment of the present invention, Test integrationSpend high, cost is lower, and volume is little, lightweight, high-frequency test is functional, better solves radio circuitThe amplitude fading problem of board test when diagnosis high-frequency signal, for frequency is less than the radio frequency circuit board of 100MHzMaintainability test provides effective means.
Accompanying drawing explanation
Fig. 1 is the structural representation of radio frequency circuit board testing diagnosis equipment of the present invention;
Fig. 2 is matrix switch connection diagram;
Fig. 3 is 100MHz96 group four blade six throw switch connection diagram.
Detailed description of the invention
Below, radio frequency circuit board testing diagnosis equipment of the present invention is described in detail with reference to figure 1 ~ 3.
As shown in Figure 1, this radio frequency circuit board testing diagnosis equipment, comprise test cell, General adaptive plate,1MHz8 × 96 matrix switch subfunction board and 100MHz96 group four blade six throw switch subfunction board.
Wherein, test cell, can comprise the test component of different frequency range, for example, and medium and low frequency instrument, numberWord I/O and radio frequency instrument, for passing through matrix switch subfunction board and four blade six throw switch subfunction plateCard is connected with circuit-under-test plate, to send test massage to circuit-under-test plate, and receives the letter that Board Under Test returnsNumber, by comparative analysis test result, carry out testing and diagnosing with circuit-under-test plate;
1MHz8 × 96 matrix switch subfunction board, provides the cubicle switchboard of 1MHz bandwidth 8 × 96 scaleBattle array is passed through itself and four blade six throw switch and circuit-under-test by medium and low frequency instrument under the control of pci controllerThe respective pin of plate is connected. As shown in Figure 2, be matrix switch connection diagram.
100MHz96 group four blade six throw switch board, provides 100MHz bandwidth 96 groups of four blade six throw switches,Under the control of pci controller, the respective pin of digital I/O and circuit-under-test plate is connected. As shown in Figure 3,For 100MHz96 group four blade six throw switch connection diagram.
General adaptive plate, for the adaptive and switching providing between testing diagnosis equipment and equipment under test;
In addition, motherboard can be comprised further, namely above-mentioned 1MHz8 × 96 matrix switch subfunction board and100MHz96 group four blade six throw switch subfunction board can be arranged on motherboard by plug-in card mode.
In addition, when space length between above-mentioned motherboard and General adaptive plate is larger, can at motherboard with logicalWith increasing extensions plate between adaptation board, to ensure the steadiness of Signal transmissions therebetween.
When specific implementation, owing to invention increases 100MHz96 group four blade six throw switch board, byIn the connected mode that changes existing switch, make signal transmission link there is no branch, greatly reduce high frequency letterDecay and the crosstalk of number transmission, be convenient to test and the fault diagnosis of high-frequency circuit board.
When data signal in radio frequency circuit board is tested, pci controller sends instructions, and controls 100MHz96 groups of four blade six throw switches, connect circuit-under-test plate relevant pins and digital I/O related channel program, to testedCircuit board is tested and is diagnosed.
When frequency in radio frequency circuit board is tested lower than the medium and low frequency signal of 1MHz, pci controllerSend instructions, control 1MHz8 × 32 matrix switch, medium and low frequency tester and matrix switch related column are connectLogical, control 100MHz96 group four blade six throw switch, by circuit-under-test plate relevant pins and matrix switch phaseClose row to connect, circuit-under-test plate is tested and diagnosed.
When the high-frequency signal that frequency in radio frequency circuit board is less than 100MHz is tested, pci controllerSend instructions, control 100MHz96 group four blade six throw switch, by circuit-under-test plate relevant pins and radiofrequency generatorDevice is connected, and circuit-under-test plate is tested and diagnosed.
In addition, it should be noted that, because medium and low frequency instrument quantity is more, therefore, opened by matrix is setPass can be expanded by centering low frequency instrument, to expand the test parameter of equipment under test. But, due to matrixThe connected mode of switch easily causes Signal transmissions to occur Bifurcation Phenomenon. The first row and signal as matrix switchSource anode is connected, and one end of the relay being connected with the first row of matrix switch all can become " antenna " so,If the higher easy generation leakage phenomenon of signal frequency. Therefore, for the tester of high-frequency signal,Conventionally only connected by four blade six throw switch and circuit-under-test plate. In addition, above-mentioned 100MHz96The connected mode of group four blade six throw switch can solve the branch problem in Signal transmissions preferably. Owing to being listFour blade six throw switch that double-pole double throw switch pieces together, can realize and in the switching control procedure of signal, not occur point, avoid the leakage problem in high-frequency signal transmitting procedure preferably.
In sum, according to radio frequency circuit board testing diagnosis equipment of the present invention, Test integration degree is high, costLower, volume is little, lightweight, high-frequency test is functional, better solves radio frequency circuit board testing and diagnosingTime high-frequency signal amplitude fading problem, the maintainability test of radio frequency circuit board that is less than 100MHz for frequency is carriedEffective means are supplied.
More than in order to make those of ordinary skill in the art understand the present invention, and to the present invention carry out detailedDescribe, but can expect, it can also be made not departing from the scope that claim of the present invention containsIts variation and amendment, these variations and amendment are all in protection scope of the present invention.
Claims (5)
1. a radio frequency circuit board testing diagnosis equipment, is characterized in that, comprises test cell, general suitableMatching board, matrix switch and four blade six throw switch and pci controller, wherein,
Described test cell, comprise medium and low frequency instrument, digital I/O and radio frequency instrument, test cell is used forConnected by described matrix switch and four blade six throw switch and circuit-under-test plate, send test to circuit-under-test plateSignal, and the signal that receives that circuit-under-test plate returns, by comparative analysis test result, to circuit-under-test plateCarry out testing and diagnosing;
Described General adaptive plate, for providing the adaptation between testing diagnosis equipment and circuit-under-test plate and turningConnect;
Described matrix switch, under the control of pci controller by medium and low frequency instrument by described matrix switch withAnd the respective pin of four blade six throw switch and circuit-under-test plate is connected;
Described four blade six throw switch, under the control of pci controller by the phase of digital I/O with circuit-under-test platePin is answered to connect;
Described pci controller, for controlling four blade six throw switch, described four blade six throw switch is by circuit-under-testPlate relevant pins and digital I/O related channel program are connected, and circuit-under-test plate is tested and diagnosed; And useIn gating matrix switch, medium and low frequency tester and matrix switch related column are connected by described matrix switch, instituteState pci controller control four blade six throw switch, described four blade six throw switch by circuit-under-test plate relevant pins withMatrix switch related column is connected, and circuit-under-test plate is tested and diagnosed; And throw for controlling four blade sixSwitch, circuit-under-test plate relevant pins and radio frequency instrument are connected by described four blade six throw switch, to circuit-under-testPlate is tested and is diagnosed.
2. radio frequency circuit board testing diagnosis equipment as claimed in claim 1, is characterized in that described squareBattle array switch is the switch matrix of 1MHz bandwidth 8 × 96 scale.
3. radio frequency circuit board testing diagnosis equipment as claimed in claim 1, is characterized in that described fourCutter six throw switch is 100MHz bandwidth 96 groups of four blade six throw switches.
4. radio frequency circuit board testing diagnosis equipment as claimed in claim 1, is characterized in that, furtherComprise motherboard, for described matrix switch and four blade six throw switch being set by plug-in card mode thereon.
5. radio frequency circuit board testing diagnosis equipment as claimed in claim 4, is characterized in that, describedExtensions plate is provided with further between motherboard and described General adaptive plate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105659853B true CN105659853B (en) | 2012-05-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019123A (en) * | 2016-06-28 | 2016-10-12 | 国营芜湖机械厂 | RF circuit off-location detecting system of communication and navigation system |
| CN107422245A (en) * | 2017-06-05 | 2017-12-01 | 安徽福讯信息技术有限公司 | A kind of general-purpose circuit board Characteristics Detection system |
| CN111447121A (en) * | 2020-03-31 | 2020-07-24 | 龙芯中科(北京)信息技术有限公司 | Test method, device, equipment and storage medium of PCIE controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019123A (en) * | 2016-06-28 | 2016-10-12 | 国营芜湖机械厂 | RF circuit off-location detecting system of communication and navigation system |
| CN107422245A (en) * | 2017-06-05 | 2017-12-01 | 安徽福讯信息技术有限公司 | A kind of general-purpose circuit board Characteristics Detection system |
| CN111447121A (en) * | 2020-03-31 | 2020-07-24 | 龙芯中科(北京)信息技术有限公司 | Test method, device, equipment and storage medium of PCIE controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20171115 |