CN103675847A - Satellite navigation receiver test fixture - Google Patents
Satellite navigation receiver test fixture Download PDFInfo
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- CN103675847A CN103675847A CN201310724867.7A CN201310724867A CN103675847A CN 103675847 A CN103675847 A CN 103675847A CN 201310724867 A CN201310724867 A CN 201310724867A CN 103675847 A CN103675847 A CN 103675847A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a satellite navigation receiver test fixture which comprises a main unit and an experimental unit. Four test channels are formed in the front of a main unit case, each channel comprises a digital display ammeter and three DB9 communication interfaces, six data communication interfaces D and four channel power interfaces S are formed in the side faces of the main unit case, the front of an experimental unit case is of a frame structure, the experimental unit comprises a first device unit U1, a wire connecting unit U2 and a module slot unit U3, six data communication interfaces D and four channel power interfaces S are formed in the side faces of the experimental unit case, a tested receiver board is inserted into an adapter installing slot and connected with a motherboard socket in an inserted manner, and end wires of the socket are connected with the data communication interfaces D, the power interfaces S and antenna interfaces and connected with the main unit through cables. The satellite navigation receiver test fixture has the advantages that cost, experimental expenses and experimental time are saved, devices needed by an experiment and experimental preparation processes are decreased, modular design is adopted, expansion interfaces are reserved and can be redefined in future product development, and a test module is added and used for new test projects.
Description
Technical field
The present invention relates to communications electronics production field tests, particularly a kind of satellite navigation receiver test fixture.
Background technology
Existing satellite navigation receiver main body circuit is comprised of a printed circuit board and respective electronic components and parts conventionally, and casing safeguard procedures are not set conventionally.Use a printed circuit board (PCB) (PCB) that is welded with socket as interface, power supply and various signal wire are drawn, extension line is directly connected with external unit.
In satellite navigation receiver prototype design and production run, usually need carry out at different testing locations the test of multiple electric property, mechanical property and temperature characterisitic, before each test, need to expend great effort and transport, settle instrument and equipment, stube cable, as occurred colliding with in prototyping testing process, be easy to cause machinery and electrostatic damage to receiving machine host plate.If the intermediary interface equipment that can be connected with external unit as receiver motherboard by test fixture, will be fast, making exactly receiver motherboard and outside establish fast plugs into, reduce maloperation probability, greatly reduce labor intensity, increase work efficiency, reduce the probability of machinery and electrostatic damage, at present, domestic not yet have Related product to occur, also there is no bibliographical information.
Summary of the invention
Object of the present invention is exactly for overcoming the deficiencies in the prior art, a kind of design proposal of satellite navigation receiver test fixture is provided, this test fixture adopts modular construction, by SMA radio frequency interface is set, data signal interfaces, power interface accurately makes receiver motherboard and external instrument equipment plug into fast, auxiliary receiver development, reduce accidental mechanical, electrostatic damage aborning, adapt to batch production demand, reduce research and development production cost.
The present invention realizes by such technical scheme: satellite navigation receiver test fixture, it is characterized in that, fixture adopts modular construction, comprise master unit and experimental considerations unit, between master unit and experimental considerations unit, by two, the shielded multiconductor cable with rapid-acting coupling connects, and needs eight cables during four receiver cards of fully loaded survey;
Described master unit comprises master unit cabinet, and master unit cabinet is made by aluminum alloy plate materials member, is processed with some mounting holes on the front panel of master unit cabinet, is respectively used to install the test component of four test channel; Each passage comprises respectively digital display ammeter, passage power switch, passage safety box and three DB9 communication interfaces;
On the side panel of master unit cabinet, be processed with the installation perforate of some louvres, Data communication interface board A, the 12 core quick sockets of six data communication interface D, the 3 core quick sockets of four passage power interface S are housed on signal data communication interface board A;
Wherein four data communication interface D are respectively to four test channel, and the data communication interface D of two redundancies is standby;
Described experimental considerations unit comprises experimental considerations unit cabinet, experimental considerations unit cabinet is made through numerical control machining center by the aluminum alloy plate materials of five 6mm and 12mm, before experimental considerations unit cabinet, it is framed structure, between upperside frame and the second horizontal frame below, form the first unit U1 and be used for the radio-frequency cable that fixes up an aerial wire, between the second horizontal frame and underside frame, form line unit U2, module slot unit U3, between unit U2 and module slot unit U3, with dividing plate, separate;
The interface board that fixes up an aerial wire in the first unit U1, installs 4 SMA radio frequency sockets, for tested receiver provides aerial signal on connection of antenna oralia;
Line unit U2 is with connecting signal, the space of power lead;
Fixing test motherboard inside module slot unit U3;
The second horizontal frame with on underside frame, have four pairs of corresponding adapter mounting grooves, adapter mounting groove is used for installing receiver adapter, receiver adapter is for the tested receiver plate of adaptive different size;
On the side panel of experimental considerations unit cabinet, be processed with the installation perforate of Data communication interface board B, on Data communication interface board B, have six data communication interface D, four passage power interface S;
According to the model of four blocks of tested receiver plates, select corresponding receiver adapter, pack in adapter mounting groove, tested receiver plate inserts in adapter mounting groove, by 96 spring hole scokets that weld on motherboard, peg graft, socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, through cable, be connected with master unit, computing machine is by the DB9 interface outputting data signals on master unit panel again;
Beneficial effect of the present invention: fixture connects several receivers through humiture through coordinating, every tests such as vibration, substantially met and in production program, proposed requirements: 1, saved cost, in receiver vibration experiment, shaking table charge is pressed by test unit, adopt after this test fixture, on a shaking table, fixed two experimental considerations units, totally eight receiver cards.According to Production requirement, can fix at most 4～8 experimental considerations units.Than original each method of surveying one, testing expenses and test period have greatly been saved.2, reduced the workload of testing required equipment and test set-up procedure, adopted the front each test of fixture to need to prepare many stabilized power supply devices and arrive on-the-spot line, workload is made mistakes greatly and easily.Now, every receiver card only need connect two cables that use fast interface.Every four receiver cards test only needs two test module unit of carrying and respective cable.Save Preparatory work of experiment workload, shortened setup time.3, adopt modular design and reserved expansion interface, the different model of product of the same type, only need stress according to the difference of the different structure of receiver and pilot project, makes corresponding experimental considerations unit.Master unit can be reused.The expansion interface that intermodule is reserved, can redefine in the development of product afterwards, increases test module for new test event.
Accompanying drawing explanation
Fig. 1, satellite navigation receiver test fixture front view;
Fig. 2, satellite navigation receiver test fixture side view;
Fig. 3, master unit axonometric drawing;
Fig. 4, experimental considerations unit axonometric drawing;
Fig. 5, motherboard circuit figure.
In figure: in figure: 1. master unit, 2. experimental considerations unit.
11. master unit cabinets, 12. digital display ammeters, 13. passage power switches, 14. passage safety boxs, 15. DB9 communication interfaces; 16. Data communication interface board A;
21. experimental considerations unit cabinets, 22. connection of antenna oralias, 23. test motherboards, 24. receiver adapters, 25. dividing plates, 26. Data communication interface board B;
11-1. louvre; 21-1. upperside frame, 21-2. the second horizontal frame, 21-3. underside frame, 21-4. receiver adapter mounting groove; 22-1. SMA radio frequency socket.
Embodiment
For a more clear understanding of the present invention, describe in conjunction with the accompanying drawings and embodiments the present invention in detail:
As shown in Figures 1 to 5, satellite navigation receiver test fixture, fixture adopts modular construction, comprises master unit and experimental considerations unit, between master unit and experimental considerations unit, by two, the shielded multiconductor cable with rapid-acting coupling connects, and needs eight cables during four receiver cards of fully loaded survey;
Described master unit 1 comprises master unit cabinet 11, and master unit cabinet 11 is made by aluminum alloy plate materials member, is processed with some mounting holes on the front panel of master unit cabinet 11, is respectively used to install the test component of four test channel; Each passage comprises respectively: digital display ammeter 12, passage power switch 13, passage safety box 14, three DB9 communication interfaces 15;
On the side panel of master unit cabinet 11, be processed with the installation perforate of some louvre 11-1, Data communication interface board A16, the 12 core quick sockets of six data communication interface D, the 3 core quick sockets of four passage power interface S are housed on signal data communication interface board A16;
Wherein four data communication interface D are respectively to four test channel, and the data communication interface D of two redundancies is standby;
Described experimental considerations unit 2 comprises experimental considerations unit cabinet 21, experimental considerations unit cabinet 21 is made through numerical control machining center by the aluminum alloy plate materials of five 6mm and 12mm, before experimental considerations unit cabinet 21, it is framed structure, between upperside frame 21-1 and the second horizontal frame 21-2 below, form the first unit U1 and be used for the radio-frequency cable that fixes up an aerial wire, between the second horizontal frame 21-2 and underside frame 21-3, form line unit U2, module slot unit U3, between unit U2 and module slot unit U3, with dividing plate 25, separate
The interface board 22 that fixes up an aerial wire in the first unit U1, installs 4 SMA radio frequency sockets, for tested receiver provides aerial signal on connection of antenna oralia 22;
Line unit U2 is with connecting signal, the space of power lead;
Fixing test motherboard 23 inside module slot unit U3;
The second horizontal frame 21-2 with on underside frame 21-3, have four couples of corresponding adapter mounting groove 21-4, adapter mounting groove 21-4 is used for installing receiver adapter 24, receiver adapter 24 is for the tested receiver plate of adaptive different size;
On the side panel of experimental considerations unit cabinet 21, be processed with the installation perforate of Data communication interface board B26, on Data communication interface board B26, have six data communication interface D, four passage power interface S;
According to the model of four blocks of tested receiver plates, select corresponding receiver adapter 24, pack in adapter mounting groove 21-4, tested receiver plate inserts in adapter mounting groove 21-4,96 spring hole scokets by welding on motherboard 23 are pegged graft, socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, through cable, be connected with master unit 1, computing machine is by the DB9 interface outputting data signals on master unit 1 panel again;
Principle of work: adopt modular construction: receiver needs to do various experiments in research and development production run, environment is harsh, want fixture also must adapt to and exceed experimental situation requirement, certainly will increase fixture cost of manufacture, and the lead time demand of similar receiver new product after considering, fixture adopts modular construction.Be divided into two modules, 5V/20A Switching Power Supply, current monitoring, data signal interfaces receiver general requirment is partly master unit, by Switching Power Supply, current sensor, data transit line, interface, electric current shows and forms.By cabinet, PCB backboard, SMA radio frequency interface, data signal interfaces, power interface forms experimental considerations unit.
Four receiver card loading test unit slots, by the 96 hole insert rows and data, power supply and the radio frequency interface socket that weld on backboard, are connected with master unit through cable, and computing machine is by the DB9 interface outputting data signals on master unit panel.Master unit+5V power supply delivers to receiver card slotting on experimental considerations unit by power interface, cable and on the digital display ammeter of master unit, shows the real work electric current of each receiver card.
Experimental considerations unit needs in test to experience high low temperature with tested receiver plate, high humidity, and strong motion severe rugged environment, the structural design of the reinforcement of employing, forms main body frame by the aluminum alloy plate materials of 6mm and 12mm through numerical control machining center.Can stand the temperature higher than receiver, humidity, oscillation intensity.
According to the above description, in conjunction with art technology, can realize the solution of the present invention.
Claims (1)
1. satellite navigation receiver test fixture, is characterized in that, fixture adopts modular construction, comprises master unit (1) and experimental considerations unit (2), and between master unit (1) and experimental considerations unit (2), by two, the shielded multiconductor cable with rapid-acting coupling connects;
Described master unit (1) comprises master unit cabinet (11), and master unit cabinet (11) is made by aluminum alloy plate materials member, on the front panel of master unit cabinet (11), is processed with some mounting holes, is respectively used to install the test component of four test channel; Each passage comprises respectively: digital display ammeter (12), passage power switch (13), passage safety box (14), three DB9 communication interfaces (15);
On the side panel of master unit cabinet (11), be processed with some louvres (11-1), Data communication interface board A(16) installation perforate, signal data communication interface board A(16) on the 12 core quick sockets of six data communication interface D and the 3 core quick sockets of four passage power interface S are housed;
Wherein four data communication interface D are respectively to four test channel, and the data communication interface D of two redundancies is standby;
Described experimental considerations unit (2) comprises experimental considerations unit cabinet (21), experimental considerations unit cabinet (21) is made through numerical control machining center by the aluminum alloy plate materials of five 6mm and 12mm, before experimental considerations unit cabinet (21), it is framed structure, between upperside frame (21-1) and the second horizontal frame (21-2) below, form the first unit U1 and be used for the radio-frequency cable that fixes up an aerial wire, between the second horizontal frame (21-2) and underside frame (21-3), form line unit U2, module slot unit U3, between line unit U2 and module slot unit U3, with dividing plate (25), separate,
The interface board (22) that fixes up an aerial wire in the first unit U1, connection of antenna oralia (22) is upper installs 4 SMA radio frequency sockets, for tested receiver provides aerial signal;
Line unit U2 is with connecting signal, the space of power lead;
Fixing test motherboard (23) inside module slot unit U3;
The second horizontal frame (21-2) with on underside frame (21-3), have corresponding four pairs of adapter mounting grooves (21-4), adapter mounting groove (21-4) is for installing receiver adapter (24), and receiver adapter (24) is for the tested receiver plate of adaptive different size;
On the side panel of experimental considerations unit cabinet (21), be processed with Data communication interface board B(26) installation perforate, Data communication interface board B(26) on have six data communication interface D, four passage power interface S;
According to the model of four blocks of tested receiver plates, select corresponding receiver adapter (24), pack in adapter mounting groove (21-4), tested receiver plate inserts in adapter mounting groove (21-4), 96 spring hole scokets by the upper welding of motherboard (23) are pegged graft, socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, pass through cable again and be connected with master unit (1), computing machine is by the DB9 interface outputting data signals on master unit (1) panel;
Master unit (1)+the multicore quick socket of 5V power supply by power interface S, two connect and be inserted in the receiver card of experimental considerations unit (2) with 3 core shielded cables of rapid-acting coupling, and on the reometer of master unit (1), show the real work electric current of each receiver card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724867.7A CN103675847B (en) | 2013-12-17 | 2013-12-17 | Satellite navigation receiver test fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724867.7A CN103675847B (en) | 2013-12-17 | 2013-12-17 | Satellite navigation receiver test fixture |
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| Publication Number | Publication Date |
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| CN103675847A true CN103675847A (en) | 2014-03-26 |
| CN103675847B CN103675847B (en) | 2016-03-30 |
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| CN201310724867.7A Active CN103675847B (en) | 2013-12-17 | 2013-12-17 | Satellite navigation receiver test fixture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227194A (en) * | 2016-08-26 | 2016-12-14 | 天津市英贝特航天科技有限公司 | A kind of DSP main control module test cabinet |
| CN108983260A (en) * | 2018-06-27 | 2018-12-11 | 深圳市泰比特科技有限公司 | A kind of GPS of low cost and the conducted signal quality verification device of Beidou |
| CN110032258A (en) * | 2018-12-24 | 2019-07-19 | 四川易简天下科技股份有限公司 | The mating structure of modularization, all-in-one machine and modular unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874526Y (en) * | 2006-01-23 | 2007-02-28 | 广东瑞图万方科技有限公司 | GPS navigation plate detector |
| CN102419182A (en) * | 2011-09-06 | 2012-04-18 | 苏州科雷芯电子科技有限公司 | Simulation test method and simulation test platform for inertial navigation |
-
2013
- 2013-12-17 CN CN201310724867.7A patent/CN103675847B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874526Y (en) * | 2006-01-23 | 2007-02-28 | 广东瑞图万方科技有限公司 | GPS navigation plate detector |
| CN102419182A (en) * | 2011-09-06 | 2012-04-18 | 苏州科雷芯电子科技有限公司 | Simulation test method and simulation test platform for inertial navigation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227194A (en) * | 2016-08-26 | 2016-12-14 | 天津市英贝特航天科技有限公司 | A kind of DSP main control module test cabinet |
| CN108983260A (en) * | 2018-06-27 | 2018-12-11 | 深圳市泰比特科技有限公司 | A kind of GPS of low cost and the conducted signal quality verification device of Beidou |
| CN110032258A (en) * | 2018-12-24 | 2019-07-19 | 四川易简天下科技股份有限公司 | The mating structure of modularization, all-in-one machine and modular unit |
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| Publication number | Publication date |
|---|---|
| CN103675847B (en) | 2016-03-30 |
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