CN103675847B - Satellite navigation receiver test fixture - Google Patents
Satellite navigation receiver test fixture Download PDFInfo
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- CN103675847B CN103675847B CN201310724867.7A CN201310724867A CN103675847B CN 103675847 B CN103675847 B CN 103675847B CN 201310724867 A CN201310724867 A CN 201310724867A CN 103675847 B CN103675847 B CN 103675847B
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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
Abstract
The present invention relates to a kind of satellite navigation receiver test fixture, comprise master unit and experimental considerations unit, there are four test channel in master unit cabinet front; Each passage comprises digital display ammeter and three DB9 communication interfaces; Six data communication interface D, four channel power source interface S are equipped with in side; Be framed structure before experimental considerations unit cabinet, comprise the first unit U1, line unit U2, module slot unit U3, six data communication interface D, four channel power source interface S are equipped with in side; Tested receiver plate inserts adapter mounting groove and the grafting of motherboard socket, socket end line is connected with data communication interface D, power interface S, antennal interface, be connected with master unit through cable again, play beneficial effect: save cost, save testing expenses and test period, decrease the equipment needed for test and test set-up procedure, adopt modular design and reserved expansion interface, can redefine in the development of product afterwards, increase test module and be used for new test event.
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 made up of a printed circuit board and respective electronic components and parts usually, does not usually arrange casing safeguard procedures.Use one piece of printed circuit board (PCB) (PCB) being 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, the test of multiple electric property, mechanical property and temperature characterisitic usually need be carried out at different testing location, need at substantial energy to transport before each test, settle instrument and equipment, stube cable, as occurred colliding with in prototyping testing process, be easy to cause machinery and electrostatic damage to reception machine host plate.If by the intermediary interface equipment that test fixture is connected with external unit as receiver motherboard, then will be fast, make receiver motherboard and outside establish exactly to plug into fast, reduce misoperation 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 not having 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 arranging SMA radio frequency interface, data signal interfaces, power interface accurately makes receiver motherboard and external instrument equipment plug into fast, auxiliary receiver is developed, reduce accidental mechanical, electrostatic damage aborning, adapt to batch production demand, reduce development & production cost.
The present invention is realized 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, connected by the shielded multiconductor cable of two with rapid-acting coupling between master unit and experimental considerations unit, during fully loaded survey four pieces of receiver cards, need eight cables;
Described master unit comprises master unit cabinet, and master unit cabinet is made up of aluminum alloy plate materials component, and the front panel of master unit cabinet is processed with some mounting holes, is respectively used to the test component of installation four test channel; Each passage comprises digital display ammeter, channel power source switch, passage safety box and three DB9 communication interfaces respectively;
The side panel of master unit cabinet is processed with the installation perforate of some louvres, Data communication interface board A, signal data communication interface board A is equipped with the 12 core quick sockets of six data communication interface D, the 3 core quick sockets of four channel power source interface S;
Wherein four data communication interface D are respectively to four test channel, and the data communication interface D of two redundancies is for subsequent use;
Described experimental considerations unit comprises experimental considerations unit cabinet, experimental considerations unit cabinet is made up through numerical control machining center of the aluminum alloy plate materials of five pieces of 6mm and 12mm, it is framed structure before experimental considerations unit cabinet, form the first unit U1 between upperside frame and the second horizontal frame below and be used for the radio-frequency cable that fixes up an aerial wire, form line unit U2 between second horizontal frame and underside frame, separate with dividing plate between module slot unit U3, unit U2 and module slot unit U3;
Fix up an aerial wire in first unit U1 interface board, 4 SMA radio frequency sockets installed by antennal interface plate, for tested receiver provides aerial signal;
Line unit U2 is used as connection signal, the space of power lead;
Fixing test motherboard inside module slot unit U3;
Second horizontal frame with underside frame has four pairs of corresponding adapter mounting grooves, adapter mounting groove is for installing receiver adapter, and receiver adapter is used for the tested receiver plate of adaptive different size;
The side panel of experimental considerations unit cabinet is processed with the installation perforate of Data communication interface board B, Data communication interface board B has six data communication interface D, four channel power source interface S;
Corresponding receiver adapter is selected according to the model of four blocks of tested receiver plates, load in adapter mounting groove, tested receiver plate inserts in adapter mounting groove, by the 96 spring hole scoket grafting that motherboard welds, socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, be connected with master unit through cable, computing machine is by the DB9 interface outputting data signals on master unit panel again;
Beneficial effect of the present invention: fixture connects several receiver through humiture through coordinating, every tests such as vibration, substantially meet in production program and propose requirements: 1, save cost, in receiver vibration experiment, shaking table charge is pressed by test unit, after adopting this test fixture, a shaking table secures two experimental considerations units, totally eight pieces of receiver cards.4 ~ 8 experimental considerations units can be fixed at most according to Production requirement.Than original each method surveying a piece, greatly save testing expenses and test period.2, decrease the workload of equipment needed for test and test set-up procedure, before adopting fixture, each test need prepare multiple stage stabilized power supply device to on-the-spot line, and workload greatly and easily make mistakes.Now, every block receiver card only need connect the cable that two use fast interface.Every four pieces of receiver cards test only need carry two test module unit and respective cable.Save Preparatory work of experiment workload, shorten setup time.3, adopt modular design and reserved expansion interface, the different model of similar-type products, only need stress according to the difference of the different structure of receiver and pilot project, make corresponding experimental considerations unit.Master unit can be reused.The expansion interface that intermodule is reserved, can redefine in the development of product afterwards, increase test module and be used 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. channel power source switches, 14. passage safety boxs, 15.DB9 communication interface; 16. Data communication interface board A;
21. experimental considerations unit cabinets, 22. antennal interface plates, 23. test motherboards, 24. receiver adapters, 25. dividing plates, 26. Data communication interface board B;
11-1. louvre; 21-1. upperside frame, 21-2. 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, the present invention is described in detail in conjunction with the accompanying drawings and embodiments:
As shown in Figures 1 to 5, satellite navigation receiver test fixture, fixture adopts modular construction, comprises master unit and experimental considerations unit, connected by the shielded multiconductor cable of two with rapid-acting coupling between master unit and experimental considerations unit, during fully loaded survey four pieces of receiver cards, need eight cables;
Described master unit 1 comprises master unit cabinet 11, and master unit cabinet 11 is made up of aluminum alloy plate materials component, and the front panel of master unit cabinet 11 is processed with some mounting holes, is respectively used to the test component of installation four test channel; Each passage comprises respectively: digital display ammeter 12, channel power source switch 13, passage safety box 14, three DB9 communication interfaces 15;
The side panel of master unit cabinet 11 is processed with the installation perforate of some louvre 11-1, Data communication interface board A16, signal data communication interface board A16 is equipped with the 12 core quick sockets of six data communication interface D, the 3 core quick sockets of four channel power source interface S;
Wherein four data communication interface D are respectively to four test channel, and the data communication interface D of two redundancies is for subsequent use;
Described experimental considerations unit 2 comprises experimental considerations unit cabinet 21, experimental considerations unit cabinet 21 is made up through numerical control machining center of the aluminum alloy plate materials of five pieces of 6mm and 12mm, it is framed structure before experimental considerations unit cabinet 21, form the first unit U1 between upperside frame 21-1 and the second horizontal frame 21-2 below and be used for the radio-frequency cable that fixes up an aerial wire, line unit U2, module slot unit U3 is formed between second horizontal frame 21-2 and underside frame 21-3, separate with dividing plate 25 between unit U2 and module slot unit U3
Fix up an aerial wire in first unit U1 interface board 22,4 SMA radio frequency sockets installed by antennal interface plate 22, for tested receiver provides aerial signal;
Line unit U2 is used as connection signal, the space of power lead;
Fixing test motherboard 23 inside module slot unit U3;
Second horizontal frame 21-2 with underside frame 21-3 has four couples of corresponding adapter mounting groove 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;
The side panel of experimental considerations unit cabinet 21 is processed with the installation perforate of Data communication interface board B26, Data communication interface board B26 has six data communication interface D, four channel power source interface S;
Corresponding receiver adapter 24 is selected according to the model of four blocks of tested receiver plates, load in adapter mounting groove 21-4, tested receiver plate inserts in adapter mounting groove 21-4, by 96 spring hole scoket grafting of welding on motherboard 23, socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, be connected with master unit 1 through cable, 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 experiment in development & production process, environment is harsh, want fixture also must adapt to and exceed experimental situation requirement, fixture cost of manufacture certainly will be increased, and consider the lead time demand of similar receiver new product later, fixture adopts modular construction.Be divided into two modules, 5V/20A Switching Power Supply, current monitoring, data signal interfaces receiver general requirment part is master unit, by Switching Power Supply, and current sensor, data switch circuit, interface, electric current display composition.By cabinet, PCB backboard, SMA radio frequency interface, data signal interfaces, power interface composition experimental considerations unit.
Four pieces of receiver card loading test unit slots, by 96 hole insert rows that backboard welds and data, power supply and radio frequency interface socket, be connected with master unit through cable, computing machine is by the DB9 interface outputting data signals on master unit panel.+ 5V the power supply of master unit is delivered 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, high humidity with tested receiver plate, 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.The temperature higher than receiver can be stood, humidity, oscillation intensity.
According to the above description, the solution of the present invention can be realized in conjunction with art technology.
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), is connected between master unit (1) and experimental considerations unit (2) by the shielded multiconductor cable of two with rapid-acting coupling;
Described master unit (1) comprises master unit cabinet (11), and master unit cabinet (11) is made up of aluminum alloy plate materials component, the front panel of master unit cabinet (11) is processed with some mounting holes, is respectively used to the test component of installation four test channel; Each passage comprises respectively: digital display ammeter (12), channel power source switch (13), passage safety box (14), three DB9 communication interfaces (15);
The side panel of master unit cabinet (11) is processed with some louvres (11-1), Data communication interface board A(16) installation perforate, 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 channel power source interface S are housed;
Wherein four data communication interface D corresponding four test channel respectively, the data communication interface D of two redundancies is for subsequent use;
Described experimental considerations unit (2) comprises experimental considerations unit cabinet (21), experimental considerations unit cabinet (21) is made up through numerical control machining center of the aluminum alloy plate materials of five pieces of 6mm and 12mm, be framed structure before experimental considerations unit cabinet (21), form the first unit U1 between upperside frame (21-1) and the second horizontal frame (21-2) below and be used for the radio-frequency cable that fixes up an aerial wire, line unit U2 is formed between second horizontal frame (21-2) and underside frame (21-3), module slot unit U3, separate with dividing plate (25) between line unit U2 and module slot unit U3,
Fix up an aerial wire in first unit U1 interface board (22), and upper installation 4 the SMA radio frequency sockets of antennal interface plate (22), for tested receiver provides aerial signal;
Line unit U2 is used as connection signal, the space of power lead;
Fixing test motherboard (23) inside module slot unit U3;
Second horizontal frame (21-2) with underside frame (21-3) has four pairs of corresponding 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;
The side panel of experimental considerations unit cabinet (21) is processed with Data communication interface board B(26) installation perforate, Data communication interface board B(26) on have six data communication interface D, four channel power source interface S;
Corresponding receiver adapter (24) is selected according to the model of four blocks of tested receiver plates, load in adapter mounting groove (21-4), tested receiver plate inserts in adapter mounting groove (21-4), by 96 spring hole scoket grafting of the upper welding of test motherboard (23), socket end line is connected with the SMA radio frequency socket of data communication interface D, power interface S, antennal interface respectively, be connected with master unit (1) through cable, computing machine is by the DB9 interface outputting data signals on master unit (1) panel again;
+ 5V the power supply of master unit (1) connects with the shielded multiconductor cable of rapid-acting coupling the receiver card being inserted in experimental considerations unit (2) by the multicore quick socket of power interface S, two, and the real work electric current of each receiver card of the upper display of digital display ammeter (12) in master unit (1).
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 CN103675847A (en) | 2014-03-26 |
| CN103675847B true 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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Families Citing this family (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 |
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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 |
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| CN103675847A (en) | 2014-03-26 |
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