CN102437885A - Communication equipment test device - Google Patents
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- CN102437885A CN102437885A CN2011102617996A CN201110261799A CN102437885A CN 102437885 A CN102437885 A CN 102437885A CN 2011102617996 A CN2011102617996 A CN 2011102617996A CN 201110261799 A CN201110261799 A CN 201110261799A CN 102437885 A CN102437885 A CN 102437885A
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Abstract
The invention relates to a communication equipment test device, which comprises a computer, a high-low-level controller, a test interface selection core module, a test module and a variable microwave module, wherein the computer is used for running test control software and for transmitting an interface control signal the high-low-level controller is provided with an input end and an output end, and the input end is connected with the computer and receives the interface control signal and generates a corresponding level signal; the test interface selection core module is connected with high-low-level controller and is provided with a plurality of test input interfaces and a plurality of test output interfaces, each test input interface is respectively connected with each test output interface, the high-low-level controller receives the interface control signal and selects a corresponding test input interface; the test module comprises a test part for testing each parameter of tested element; and the variable microwave module comprises multiple microwave parts. Due to the adoption of the communication equipment test device, the automatic test of each tested interface can be realized, different test parts can be selected according to different indexes to be tested, the test is flexible, rapid, high efficient and correct, the test cost can be reduced, and the test efficiency can be improved.
Description
Technical field
The present invention relates to a kind of testing apparatus that each item index of communication apparatus is tested automatically.
Background technology
For a duplex signaling equipment; Duplexer filter for example; Before putting into the base station use, must test its each item index; Such as S-Parameter (S parameter), VSWR (standing-wave ratio), IMD (intermodulation distortion), IIP3 (input third order intermodulation), Noise Figure (noise factor) etc., after these indexs were all qualified, product just can shipment.
The S parameter be exactly be based upon incident wave, reflected wave concerns the network parameter on the basis, is suitable for the microwave circuit analysis, pass with the reflected signal of device port and from this port and describe circuit network to the signal of another port.
Standing-wave ratio (VSWR, Voltage Standing Wave Ratio) is an important parameter of radio frequency.So-called standing wave is not cause owing to the impedance in the delivering path matches, and when not matching appears in the delivering path middle impedance, understands some signal power and is reflected, and this reflected signal forms standing wave with the stack that transmits.Standing-wave ratio means that more greatly signal reflex is relatively more severe, that is to say that the matching effect on the delivering path is poor.
IM (Inter Modulation) is a product of normally importing the harmonic component intermodulation of measured piece signal, and they usually can cause interference to useful signal.IMD (Inter Modulation Distortion) is meant the amplitude that interference signal is suppressed by measured piece with respect to useful signal, and the dB commonly used of unit representes.
IP3 (Input Third-order Intercept Point) third order intermodulation point is a kind of metering system of nonlinear device (for example linear amplifier, mixed-phase device and receiver).It is the linear intersection point of first harmonic and IM3, has reflected the linearity of device, and just triple-frequency harmonics is to the influence degree of main ripple.IP3 is big more, and the system linearity degree is good more.IIP3 (Input Third-order Intercept Point) is meant the third order intermodulation of input, and duplexer filter generally detects its performance with this index.
Noise factor (Noise Figure) often is used to weigh the noise level of amplifier itself, because amplifier itself just has noise, the signal to noise ratio of output and input signal to noise ratio are different.
In the actual production test process, that measured piece has is several, tens ports all need be tested identical technical indicator, such as the S parameter.Like this, the tester just need successively be connected respectively to two RF cables of network analyzer on the port of those tens measured pieces.When the production line scale of mass production, such method can expend a lot of time and be easy to generate mistake.In like manner, in the test process that carries out other technical indicator, also can produce same problem.
Summary of the invention
The purpose of this invention is to provide a kind of communication equipment testing apparatus quick, good reliability of testing, in test process, to reduce human cost, time cost, testing equipment cost.
For achieving the above object, the technical scheme that the present invention adopts is:
A kind of communication equipment testing apparatus comprises
Computer, operation test Control Software is used to send the test that port control signal is controlled communication equipment on the described computer;
The high-low level controller; Described high-low level controller has input and output; Its input is connected with described computer and receives described port control signal, and described high-low level controller produces corresponding level signal according to described port control signal;
Port to be measured is selected nucleus module; Described port to be measured selects nucleus module to be connected with described high-low level controller; It has several test input mouths and several test output terminal mouths; Each described test input mouth is connected with each described test output terminal mouth respectively, and when measured piece was tested, described test input mouth was connected with each pin of described measured piece; Described port to be measured selects nucleus module to receive described port control signal and according to the corresponding test input mouth of its gating;
Test module, described test module comprise the test component that each parameter of described measured piece is tested;
Variable microwave components module, described variable microwave components module comprises the microwave device that multiple and described test component matches.
Preferably; Described port to be measured selects nucleus module also to have two bypass ECP Extended Capabilities Ports that are connected with described test output terminal mouth; When described port to be measured need be expanded; Multistage described port to be measured selects nucleus module to be connected, and the described port to be measured of next stage selects the test output terminal mouth of nucleus module to select the bypass ECP Extended Capabilities Port of nucleus module to be connected with the described port to be measured of upper level.
Preferably, described port selection nucleus module to be measured is the low power core core module that is used for the high power nucleus module of testing under the higher situation of power or is used for testing under the low situation of power.
Preferably, described high-low level controller is general-purpose interface bus high-low level controller or USB high-low level controller.
Preferably, described test module also is included as each test component provides described test component to insert or do not insert the option device of test, and each described option device is integrated into variable option module.
Preferably, described test component comprises any one or a few of network analyzer, the standing-wave ratio tester that is used to test standing-wave ratio that is used for testing the S parameter, the third order intermodulation point tester that is used to test third order intermodulation point, the power tester that is used for testing radio frequency path power, the acoustic meter that is used for the test noise coefficient, spectrum analyzer.
Further preferred; Described third order intermodulation point tester comprises mixer and the switch matrix that matches with it; Described power tester comprises coupler and the switch matrix that matches with it, and described third order intermodulation point tester and described power tester are integrated into the variable power source module.
Preferably, described microwave device comprises any one or a few in noise source, high power load, low noise amplifier, the attenuator.
Preferably, described port to be measured selects nucleus module to have 4 described test output terminal mouths, 6 described test input mouths.
Because technique scheme utilization; The present invention compared with prior art has advantage: because the present invention has adopted computer control high-low level controller and port to be measured to select nucleus module to come the different test port of gating; Can realize automatic test to each port to be measured; The different indexs that can test are as required selected different test components, make test flexibly and fast, efficiently and accurately, can reduce the cost of test and improve testing efficiency.
Description of drawings
Accompanying drawing 1 is the front panel mode of connection of each module of the embodiment one of communication equipment testing apparatus of the present invention.
Accompanying drawing 2 is the rear board mode of connection of each module of the embodiment one of communication equipment testing apparatus of the present invention.
Accompanying drawing 3 is the front panel mode of connection of each module of the embodiment two of communication equipment testing apparatus of the present invention.
Accompanying drawing 4 is the rear board mode of connection of each module of the embodiment two of communication equipment testing apparatus of the present invention.
Accompanying drawing 5 is the front panel mode of connection of each module of the embodiment three of communication equipment testing apparatus of the present invention.
Accompanying drawing 6 is the rear board mode of connection of each module of the embodiment three of communication equipment testing apparatus of the present invention.
In the above accompanying drawing: 1, acoustic meter; 2, network analyzer; 3, computer; 4, variable microwave components module; 5, general-purpose interface bus high-low level controller; 6, low power core core module; 9, measured piece; 10, signal source; 11, radio-frequency power amplifier; 12, spectrum analyzer; 13, high power nucleus module; 14, variable option module; 15, power meter; 16, variable power source module; 17, standing-wave ratio tester.
Embodiment
Below in conjunction with embodiment shown in the drawings the present invention is further described.
A kind of communication equipment testing apparatus comprises
Computer 3, operation test Control Software is used to send the test that port control signal is controlled communication equipment on the computer 3.
The high-low level controller, the high-low level controller has input and output, and its input is connected with computer 3 and the receiving port control signal, and the high-low level controller produces corresponding level signal according to port control signal.The high-low level controller is general-purpose interface bus high-low level controller 5 or USB high-low level controller, and the two is different with the interface that computer 3 signal posts adopt, and can select according to actual test case.
Port to be measured is selected nucleus module, and port to be measured selects nucleus module to be connected with the high-low level controller, and it has 6 test input mouths, 4 test output terminal mouths, 2 bypass ECP Extended Capabilities Ports that are connected with the test output terminal mouth.Each test input mouth is connected with each test output terminal mouth respectively, and when measured piece 9 was tested, the test input mouth was connected with each port to be measured of measured piece 9.Port to be measured is selected nucleus module receiving port control signal and according to the corresponding test input mouth of its gating.When port to be measured need be expanded, multistage port to be measured selected nucleus module to be connected, and next stage port to be measured selects the test output terminal mouth of nucleus module to select the bypass ECP Extended Capabilities Port of nucleus module to be connected with upper level port to be measured.It is the low power core core module 6 that is used for the high power nucleus module of testing under the higher situation of power 13 or is used for testing under the low situation of power that port to be measured is selected nucleus module, and the two can be selected according to actual test case.
Test module, test module comprise test component that each parameter of measured piece 9 is tested, insert or do not insert the option device of test for each test component provides test component.Each option device is integrated into variable option module 14.Test component comprises any one or a few of network analyzer 2, the standing-wave ratio tester 17 that is used to test standing-wave ratio that is used for testing the S parameter, the third order intermodulation point tester that is used to test third order intermodulation point, the power tester that is used for testing radio frequency path power, the acoustic meter 1 that is used for the test noise coefficient, spectrum analyzer 12.Third order intermodulation point tester comprises mixer and the switch matrix that matches with it, and power tester comprises coupler and the switch matrix that matches with it, and third order intermodulation point tester and power tester are integrated into variable power source module 16.
Variable microwave components module 4, variable microwave components module 4 comprises the multiple microwave device that matches with test component.Microwave device comprises any one or a few in noise source, high power load, low noise amplifier, the attenuator.
Embodiment one: with shown in the accompanying drawing 2, the multiport low-power of duplexer filter is tested referring to accompanying drawing 1.
Before duplexer filter is put into the communication base station use, need carry out Validity Test to its each item index, comprise S parameter etc. in these test indexs.The S parameter be exactly be based upon incident wave, reflected wave concerns the network parameter on the basis, is suitable for the microwave circuit analysis, pass with the reflected signal of device port and from this port and describe circuit network to the signal of another port.For a two-port network; Specifically comprise S11 (reflection coefficient of port one during port 2 couplings), S21 (port one is to the forward transmitted coefficient of port 2 during port 2 couplings), S12 (port 2 is to the reverse transfer coefficient of port one during the port one coupling), S22 (during the port one coupling, the reflection coefficient of port 2).For duplexer filter, this is one of most important technical indicator.Therefore, to the port number to be measured of different measured piece 9, can the various modules of independent assortment.This instance is measured piece 9 testing schemes about one 15 port.
In the present embodiment, the communication equipment testing apparatus has been used the network analyzer 2 that is used for the S parameter testing, acoustic meter 1, general-purpose interface bus high-low level controller 5, low power core core module 6, the variable microwave components module 4 that is used for the noise factor test.Facing each several part composition and annexation down describes.
The test Control Software of operation is sent port control signal and is given general-purpose interface bus high-low level controller 5 on the computer 3; General-purpose interface bus high-low level controller 5 can produce the corresponding port that the level signal that suits the requirements is accordingly given low power core core module 6, and low power core core module 6 lets it switch to correct operating state.
Acoustic meter 1 can be tested this technical indicator of noise factor of measured piece 9; Its port is connected with noise source; Noise source is provided by variable microwave components module 4; It is connected on two test output terminal mouths of low power core core module 6 with another port, and six test input mouths of this low power core core module 6 are connected on each pin of measured piece 9, thereby realizes the test of 1 pair of measured piece 9 of acoustic meter.Because measured piece 9 has 15 ports to be measured, therefore need three grades of low power core core modules 6 that are connected.The test output terminal mouth of second level low power core core module 6 is connected with the bypass ECP Extended Capabilities Port of first order low power core core module 6; And then 6, three grades of low power core core modules 6 of connection third level low power core core module can have 18 test input mouths to be connected on the port of measured piece 9 altogether.In the present embodiment, measured piece 9 only has 15 ports to be measured, so only connected 15 lines among the figure.Like this, as long as in 15 ports to be measured of measured piece 9, any port of test noise coefficient that needs can be connected to acoustic meter 1, thereby tests.In like manner, network analyzer 2 is tested the S parameter.
Computer 3 except with 5 communications of general-purpose interface bus high-low level controller; Also carry out communication with acoustic meter 1 and network analyzer 2; Make it carry out the test of noise factor or S parameter respectively to measured piece 9 each port; And feed back the result to computer 3 record and to show, thereby realize test automatically.
Embodiment two: with shown in the accompanying drawing 4, multiport high power standing-wave ratio is tested referring to accompanying drawing 3.
Different with embodiment one is: (1) owing to be the high power test, port selection nucleus module therefore to be measured is a high power nucleus module 13; (2) measured piece 9 has 6 ports to be measured, therefore only needs one-level high power nucleus module 13, and need not expansion; (3) signal source 10 is connected with variable power source module 16; High power nucleus module 13 is connected with radio-frequency power amplifier 11 through variable option module 14; Radio-frequency power amplifier 11 is connected with variable power source module 16, and variable power source module 16 is connected has power meter 15; (4) standing-wave ratio tester 17 is connected with variable power source module 16.
Embodiment three: with shown in the accompanying drawing 6, multiport is tested referring to accompanying drawing 5.
Different with embodiment one and embodiment two is: 6 ports to be measured of measured piece 9 connect low power core core module 6, and 6 ports to be measured connect high power nucleus module 13 in addition.Test component comprises spectrum analyzer 12.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. communication equipment testing apparatus, it is characterized in that: described communication equipment testing apparatus comprises
Computer, operation test Control Software is used to send the test that port control signal is controlled communication equipment on the described computer;
The high-low level controller; Described high-low level controller has input and output; Its input is connected with described computer and receives described port control signal, and described high-low level controller produces corresponding level signal according to described port control signal;
Port to be measured is selected nucleus module; Described port to be measured selects nucleus module to be connected with described high-low level controller; It has several test input mouths and several test output terminal mouths; Each described test input mouth is connected with each described test output terminal mouth respectively, and when measured piece was tested, described test input mouth was connected with each pin of described measured piece; Described port to be measured selects nucleus module to receive described port control signal and according to the corresponding test input mouth of its gating;
Test module, described test module comprise the test component that each parameter of described measured piece is tested;
Variable microwave components module, described variable microwave components module comprises the microwave device that multiple and described test component matches.
2. communication equipment testing apparatus according to claim 1; It is characterized in that: described port to be measured selects nucleus module also to have two bypass ECP Extended Capabilities Ports that are connected with described test output terminal mouth; When described port to be measured need be expanded; Multistage described port to be measured selects nucleus module to be connected, and the described port to be measured of next stage selects the test output terminal mouth of nucleus module to select the bypass ECP Extended Capabilities Port of nucleus module to be connected with the described port to be measured of upper level.
3. communication equipment testing apparatus according to claim 1 is characterized in that: it is the low power core core module that is used for the high power nucleus module of testing under the higher situation of power or is used for testing under the low situation of power that described port to be measured is selected nucleus module.
4. communication equipment testing apparatus according to claim 1 is characterized in that: described high-low level controller is general-purpose interface bus high-low level controller or USB high-low level controller.
5. communication equipment testing apparatus according to claim 1; It is characterized in that: described test module also is included as each test component provides described test component to insert or do not insert the option device of test, and each described option device is integrated into variable option module.
6. communication equipment testing apparatus according to claim 1 is characterized in that: described test component comprises any one or a few of network analyzer, the standing-wave ratio tester that is used to test standing-wave ratio that is used for testing the S parameter, the third order intermodulation point tester that is used to test third order intermodulation point, the power tester that is used for testing radio frequency path power, the acoustic meter that is used for the test noise coefficient, spectrum analyzer.
7. communication equipment testing apparatus according to claim 6; It is characterized in that: described third order intermodulation point tester comprises mixer and the switch matrix that matches with it; Described power tester comprises coupler and the switch matrix that matches with it, and described third order intermodulation point tester and described power tester are integrated into the variable power source module.
8. communication equipment testing apparatus according to claim 1 is characterized in that: described microwave device comprises any one or a few in noise source, high power load, low noise amplifier, the attenuator.
9. communication equipment testing apparatus according to claim 1 is characterized in that: described port to be measured selects nucleus module to have 4 described test output terminal mouths, 6 described test input mouths.
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| CN2011102617996A CN102437885A (en) | 2011-09-06 | 2011-09-06 | Communication equipment test device |
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| CN2011102617996A CN102437885A (en) | 2011-09-06 | 2011-09-06 | Communication equipment test device |
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| CN102749513A (en) * | 2012-06-27 | 2012-10-24 | 中国电子科技集团公司第四十一研究所 | Method of measuring intermodulation distortion frequency spectrum through vector network analyzer |
| CN103236887A (en) * | 2013-04-07 | 2013-08-07 | 南京纳特通信电子有限公司 | Low intermodulation radio frequency coaxial switch testing array |
| CN105024766A (en) * | 2014-04-21 | 2015-11-04 | 哈尔滨飞机工业集团有限责任公司 | Communication control management equipment tester |
| CN109302332A (en) * | 2018-10-29 | 2019-02-01 | 中北大学 | A kind of communication network controller automatic test equipment |
| CN110022178A (en) * | 2018-08-13 | 2019-07-16 | 深圳市天工测控技术有限公司 | A kind of detection circuit and detection method of WiFi module |
| CN110646693A (en) * | 2019-09-26 | 2020-01-03 | 上海仁童电子科技有限公司 | Test equipment of 100BASE-TX equipment |
| CN110988512A (en) * | 2019-10-24 | 2020-04-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Microwave device testing system and microwave device testing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102749513A (en) * | 2012-06-27 | 2012-10-24 | 中国电子科技集团公司第四十一研究所 | Method of measuring intermodulation distortion frequency spectrum through vector network analyzer |
| CN103236887A (en) * | 2013-04-07 | 2013-08-07 | 南京纳特通信电子有限公司 | Low intermodulation radio frequency coaxial switch testing array |
| CN105024766A (en) * | 2014-04-21 | 2015-11-04 | 哈尔滨飞机工业集团有限责任公司 | Communication control management equipment tester |
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| CN110022178A (en) * | 2018-08-13 | 2019-07-16 | 深圳市天工测控技术有限公司 | A kind of detection circuit and detection method of WiFi module |
| CN109302332A (en) * | 2018-10-29 | 2019-02-01 | 中北大学 | A kind of communication network controller automatic test equipment |
| CN110646693A (en) * | 2019-09-26 | 2020-01-03 | 上海仁童电子科技有限公司 | Test equipment of 100BASE-TX equipment |
| CN110988512A (en) * | 2019-10-24 | 2020-04-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Microwave device testing system and microwave device testing method |
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