CN103698631B - DVB anti-interference antenna test system - Google Patents
DVB anti-interference antenna test system Download PDFInfo
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- CN103698631B CN103698631B CN201310691995.6A CN201310691995A CN103698631B CN 103698631 B CN103698631 B CN 103698631B CN 201310691995 A CN201310691995 A CN 201310691995A CN 103698631 B CN103698631 B CN 103698631B
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Abstract
The present invention relates to DVB anti-interference antenna test system, eight groups of potato masher antennas form antenna array, tested receiver antenna is positioned over antenna array central authorities; Testing and control computer is connected with signal source, radio frequency switching relay-operated controller; Controlling four radio frequency converting switchs, every two groups of potato masher antennas and signal source are switched by a radio frequency converting switch; Often organize and the RF signalling channel of potato masher antenna includes three transmitting branches, respectively by two relay contacts as switching switch, control the connection of three transmitting branches and RF signalling channel; System requires setup parameter according to test product technology, form a test scene, beneficial effect: realize 8 �� 3 �� 4 kinds of test combinations by radio frequency switching four radio frequency converting switchs of Control, relay, without repeating the bar that erects a television antenna, reconnect cable, save the testing time, improve testing efficiency and test data accuracy, reduce the labor intensity of tester, creative and practical value.
Description
Technical field
The present invention relates to electronic product production test field, particularly to a kind of DVB anti-interference antenna test system.
Background technology
The resistance to ability being disturbed of satellite navigation receiver antenna is to weigh an important indicator of receiver antenna. The test of present stage antenna outdoor scene still adopts more original method. Namely every signal source connects one group of antenna element by cable, tester put diverse location by one to many group antennas as requested, and erect a television antenna bar, reconnects cable, and regulates antenna height change directivity angle. Another tester is responsible for arranging, changing the parameter of multiple stage signal source. 3rd people is responsible for measuring and recording receiver test data. One whole position of antenna (number X elevation location number X signal source, azimuth position number) tests needs five to ten days, trivial operations, it is easy to make mistakes, and no matter in freezing winter and in sultry summer, the work under bad environment of tester.
Summary of the invention
The purpose of the present invention, exactly for overcoming the deficiencies in the prior art, for adapting to the needs of large-scale production, reduces the testing time, reduces and arrange the instrument parameter dependence to tester, reduces operator and makes mistakes probability. Improve the accuracy of test data. And preserve data for quality of production management offer data support. Reduce the labor intensity of tester simultaneously. Need to develop a kind of DVB anti-interference antenna test system and solve the deficiencies in the prior art.
The present invention is realized by such technical scheme: DVB anti-interference antenna test system, it is characterized in that, system includes testing and control computer, four signal sources, eight groups of potato masher antennas, radio frequency converting switch, RS232 turn 485 modules, radio frequency switching relay-operated controller, wire casing, radio-frequency cable and tested reception antenna;
Potato masher antenna is made up of mast and antenna element; Each mast has three antenna elements;
Being formed antenna array by eight groups of potato masher antennas, eight masts are separated by 45 �� of circumferential arrangement, and tested receiver antenna is positioned over antenna array central authorities;
Testing and control computer and four signal sources are arranged in 19 standard cabinets, and standard cabinet is arranged on equipment room; The radio frequency of antenna array, control, data cable are pooled to wire casing and introduce entrance equipment room, are connected with testing and control computer (1) and signal source;
Testing and control computer turns 485 modules by RS232 and is connected with control signal source;
Testing and control computer connects radio frequency switching relay-operated controller by RS232 interface;
Radio frequency switching relay-operated controller is by radio frequency switching four radio frequency converting switchs of Control bus marco, and each radio frequency converting switch is made up of a relay;
The common port of relay constituting radio frequency converting switch is connected with the RF signal end of signal source, and normal-closed end connects the RF signalling channel input of one group of potato masher antenna, and normally opened end connects the RF signalling channel input of another group potato masher antenna; The RF signal end of every two groups of potato masher antenna RF signalling channel inputs and signal source is controlled by a radio frequency converting switch and is switched;
Often organizing and include three transmitting branches in the RF signalling channel of potato masher antenna, the outfan of each transmitting branch connects an antenna element; Respectively by two relay contacts as switching switch, control being connected and disconnected from of three transmitting branches and RF signalling channel;
According to test product technology, testing and control computer requires that the modulation system provided, signal intensity set the emission state of each antenna element in eight groups of potato masher antennas, form a test scene,
The method that tested reception antenna is tested by described DVB anti-interference antenna test system, comprises the steps:
A. tested reception antenna is fixed on antenna array center by test operator;
B. test operator recalls test program in testing and control computer, program turns 485 modules by RS232 and controls four signal sources and radio frequency switching relay-operated controller by preset address, operation radio frequency converting switch, by the interference signal of four signal sources by product test description requirement, it is added separately on the antenna element in the potato masher antenna specified;
C., after scene to be tested is formed, testing and control computer testing program reads the output data of tested reception antenna by data cable; Measure corresponding index, judge that the data tested out are whether in the scope that test specification book specifies, as defective, then test program stops, and as tested data qualifier, will test data record hereof, carry out setting and the test of next scene, by control computer control signal source, complete 8 �� 3 �� 4 kinds test combination in one or more, and test result is write file preserve;
D. changed next tested reception antenna by operator after having tested, continue test.
Beneficial effects of the present invention: system switches four radio frequency converting switchs of Control bus marco by radio frequency, relay realizes 8 �� 3 �� 4 kinds of test combinations, 1, without repeating the bar that erects a television antenna, reconnect cable, save the testing time, four signal sources change parameters, calculate and exclude line loss, it is judged that, the work such as record test data completes by computer all under the control of a test program, only with the testing time of original part, testing efficiency improves nearly ten times. 2. reducing the labor intensity of tester, when test combination is fixing, operator participate in when only needing to change test product, and remaining work completes by test system. Work is may continue to when atrocious weather. 3. improving the accuracy of test data, instrument controlling, cable waste bias sets, the collection of test data, record achieve and complete by computer, discharge the personal error introduced by operator, overcome the deficiencies in the prior art, creative and practical value.
Accompanying drawing explanation
Fig. 1, DVB anti-interference antenna test principle block diagram;
Fig. 2, DVB anti-interference antenna test system schematic;
In figure: 1. control computer, 2. signal source, 3. potato masher antenna, 4. radio frequency converting switch, 5.RS232 turns 485 modules, 6, radio frequency switching relay-operated controller, 7. wire casing, 8. radio-frequency cable, 9. tested reception antenna,
301. mast, 302. antenna elements.
Detailed description of the invention
Understand the present invention in order to clearer, the present invention be described in detail in conjunction with the accompanying drawings and embodiments:
As shown in Figure 1 and Figure 2, DVB anti-interference antenna test system, system includes testing and control computer 2, eight groups of potato masher antennas 3 of 1, four signal sources, radio frequency converting switch 4, RS232 turns 485 modules 5, radio frequency switches relay-operated controller 6, wire casing 7, radio-frequency cable 8 and tested reception antenna 9;
Potato masher antenna 3 is made up of mast 301 and antenna element 302; Each mast 301 has three antenna elements 302;
Being formed antenna array by eight groups of potato masher antennas 3, eight masts 301 are separated by 45 �� of circumferential arrangement, and tested receiver antenna 9 is positioned over antenna array central authorities;
Testing and control computer 1 and four signal sources 2 are arranged in 19 standard cabinets, and standard cabinet is arranged on equipment room; The radio frequency of antenna array, control, data cable are pooled to wire casing 7 and introduce entrance equipment room, are connected with testing and control computer 1 and signal source (2);
Testing and control computer 1 turns 485 modules 5 by RS232 and is connected with control signal source 2;
Testing and control computer 1 connects radio frequency switching relay-operated controller 6 by RS232 interface;
Radio frequency switching relay-operated controller 6 is by radio frequency switching four radio frequency converting switchs 4 of Control bus marco, and each radio frequency converting switch 4 is made up of a relay;
The common port of relay constituting radio frequency converting switch 4 is connected with the RF signal end of signal source 2, normally closed
End connects the RF signalling channel input of one group of potato masher antenna 3, and normally opened end connects the RF signalling channel input of another group potato masher antenna 3; The RF signal end of every two groups of potato masher antenna 3RF signalling channel inputs and signal source 2 is used for controlling and switching by a radio frequency converting switch 4;
Often organizing and include three transmitting branches in the RF signalling channel of potato masher antenna 3, the outfan of each transmitting branch connects an antenna element 302; Respectively by two relay contacts as switching switch, control being connected and disconnected from of three transmitting branches and RF signalling channel;
According to test product technology, testing and control computer 1 requires that the modulation system provided, signal intensity set the emission state of each antenna element 302 in eight groups of potato masher antennas 3, form a test scene,
Eight groups of potato masher antennas 3 are successively by the order of first group, second group ... the 8th group, it is separated by 45 �� of circumferential arrangement, wherein distinguish a corresponding radio frequency converting switch 4 with the 7th group, the 4th group with the 8th group with the 6th group, the 3rd group with the 5th group, second group for first group, be used for the RF signal end connecting path of two groups of potato masher antennas 3 and signal source 2 switching correspondence.
8 �� 3 �� 4 kinds of test combinations are formed by eight groups of potato masher antennas 3.
According to the above description, the solution of the present invention can be realized in conjunction with art technology.
Claims (4)
1. DVB anti-interference antenna test system, it is characterized in that, system includes testing and control computer (1), four signal sources (2), eight groups of potato masher antennas (3), radio frequency converting switch (4), RS232 turn 485 modules (5), radio frequency switching relay-operated controller (6), wire casing (7), radio-frequency cable (8) and tested reception antenna (9);
Potato masher antenna (3) is made up of mast (301) and antenna element (302); Each mast (301) has three antenna elements (302);
Being formed antenna array by eight groups of potato masher antennas (3), eight masts (301) are separated by 45 �� of circumferential arrangement, and tested reception antenna (9) is positioned over antenna array central authorities;
Testing and control computer (1) and four signal sources (2) are arranged in 19 standard cabinets, and standard cabinet is arranged on equipment room; The radio frequency of antenna array, control, data cable are pooled to wire casing (7) and are incorporated into equipment room, are connected with testing and control computer (1) and four signal sources (2);
Testing and control computer (1) turns 485 modules (5) by RS232 and is connected with four signal sources (2);
Testing and control computer (1) connects radio frequency switching relay-operated controller (6) by RS232 interface;
Radio frequency switching relay-operated controller (6) switches four radio frequency converting switchs (4) of Control bus marco by radio frequency, and each radio frequency converting switch (4) is made up of a relay;
The RF signal end of the common port and a signal source (2) that constitute the relay of described each radio frequency converting switch (4) connects, normal-closed end connects the RF signalling channel input of one group of potato masher antenna (3), and normally opened end connects the RF signalling channel input of another group potato masher antenna (3); The RF signal end of every two groups of potato masher antenna (3) RF signalling channel inputs and a signal source (2) is used for controlling and switching by a radio frequency converting switch (4);
Often organizing and include three transmitting branches in the RF signalling channel of potato masher antenna (3), the outfan of each transmitting branch connects an antenna element (302); Respectively by two relay contacts as switching switch, control being connected and disconnected from of three transmitting branches and RF signalling channel;
According to test product technology, testing and control computer (1) requires that the modulation system provided, signal intensity set the emission state of each antenna element (302) in eight groups of potato masher antennas (3), form a test scene.
2. the method utilizing the test of the DVB anti-interference antenna described in claim 1 system that tested reception antenna is tested, comprises the steps:
A. tested reception antenna (9) is fixed on antenna array center by test operator;
B. test operator recalls test program in testing and control computer (1), program turns 485 modules (5) by RS232 and controls four signal sources (2) and radio frequency switching relay-operated controller (6) by preset address, operation radio frequency converting switch (4), by the interference signal of four signal sources by product test description requirement, it is added separately on the antenna element (302) in the potato masher antenna (3) specified;
C., after scene to be tested is formed, testing and control computer (1) test program reads the output data of tested reception antenna (9) by data cable; Measure corresponding index, judge that the data tested out are whether in the scope that test specification book specifies, as defective, then test program stops, and as tested data qualifier, will test data record hereof, carry out setting and the test of next scene, controlled four signal sources (2) by the test program controlled in computer (1), complete in 8 �� 3 �� 4 kinds of test combinations one or more, and test result is write file preserve;
D. changed next tested reception antenna (9) by operator after having tested, continue test.
3. DVB anti-interference antenna test system as claimed in claim 1, it is characterized in that, eight groups of potato masher antennas (3) are successively by the order of first group, second group ... the 8th group, it is separated by 45 �� of circumferential arrangement, wherein distinguish a corresponding radio frequency converting switch (4) with the 7th group, the 4th group with the 8th group with the 6th group, the 3rd group with the 5th group, second group for first group, be used for the RF signal end connecting path of two groups of potato masher antennas (3) and the signal source (2) switching correspondence.
4. DVB anti-interference antenna test system as claimed in claim 1, it is characterised in that formed 8 �� 3 �� 4 kinds of test combinations by eight groups of potato masher antennas (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691995.6A CN103698631B (en) | 2013-12-17 | 2013-12-17 | DVB anti-interference antenna test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691995.6A CN103698631B (en) | 2013-12-17 | 2013-12-17 | DVB anti-interference antenna test system |
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| CN103698631A CN103698631A (en) | 2014-04-02 |
| CN103698631B true CN103698631B (en) | 2016-06-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698475A (en) * | 2015-04-02 | 2015-06-10 | 芜湖航飞科技股份有限公司 | Satellite navigation receiver simulation anti-jamming testing method |
| CN104698474A (en) * | 2015-04-02 | 2015-06-10 | 芜湖航飞科技股份有限公司 | Satellite navigation receiver anti-jamming testing system and method |
| CN107017895B (en) * | 2017-06-08 | 2023-04-07 | 柒星通信科技（北京）有限公司 | Antenna clutch and mobile terminal comprising same |
| CN109031357A (en) * | 2017-06-10 | 2018-12-18 | 刘科宏 | A kind of anti-interference capability testing system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11177330A (en) * | 1997-12-16 | 1999-07-02 | Ntt Mobil Commun Network Inc | Array response simulator |
| CN202150552U (en) * | 2011-02-24 | 2012-02-22 | 北京波尔通导科技有限公司 | Automatic control system for satellite antenna |
| CN102412887A (en) * | 2012-01-10 | 2012-04-11 | 成都林海电子有限责任公司 | Simulated down converter in satellite demodulator and interference resisting method thereof |
| CN203720276U (en) * | 2013-12-17 | 2014-07-16 | 天津七六四通信导航技术有限公司 | System for testing anti-interference antenna of satellite receiver |
-
2013
- 2013-12-17 CN CN201310691995.6A patent/CN103698631B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11177330A (en) * | 1997-12-16 | 1999-07-02 | Ntt Mobil Commun Network Inc | Array response simulator |
| CN202150552U (en) * | 2011-02-24 | 2012-02-22 | 北京波尔通导科技有限公司 | Automatic control system for satellite antenna |
| CN102412887A (en) * | 2012-01-10 | 2012-04-11 | 成都林海电子有限责任公司 | Simulated down converter in satellite demodulator and interference resisting method thereof |
| CN203720276U (en) * | 2013-12-17 | 2014-07-16 | 天津七六四通信导航技术有限公司 | System for testing anti-interference antenna of satellite receiver |
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| CN103698631A (en) | 2014-04-02 |
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