CN204539162U - A kind of interference source device for the test of concentrator GPRS communication automation system - Google Patents
A kind of interference source device for the test of concentrator GPRS communication automation system Download PDFInfo
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- CN204539162U CN204539162U CN201520090219.5U CN201520090219U CN204539162U CN 204539162 U CN204539162 U CN 204539162U CN 201520090219 U CN201520090219 U CN 201520090219U CN 204539162 U CN204539162 U CN 204539162U
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 title claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 230000005855 radiation Effects 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The utility model relates to a kind of interference source device for the test of concentrator GPRS communication automation system, comprise interference source, shielded box, coupler and main control system, the coupled antenna of described coupler comprises grounding disc, radiation patch, air dielectric layer and feed substrate, microstrip feed line, grounding disc is shaped with a concentric oval coupling slot, between the groove of this concentration ellipse shape coupling slot, gap is equal, being fixedly mounted with a radiation patch to should plane cover the grounding disc of concentration ellipse shape coupling slot, between radiation patch and grounding disc, be fixedly mounted with the air dielectric layer of.This device is by setting up external electromagnetic field to external interference models such as the concentration ellipse shape coupling slot antenna models that communication equipment disturbs, for test macro provides GPRS interference signal model to select, ensure the authenticity of test environment, really accomplish the various interference that can run in the operational environment that acquisition terminal is actual at the scene, ensure the accuracy to acquisition terminal testing of equipment and reliability.
Description
Technical field
The utility model belongs to the means for anti-jamming in GPRS radio test signal field, especially a kind of interference source device for the test of concentrator GPRS communication automation system.
Background technology
Along with progress, the industrial expansion of science and technology, except the electromagnetic interference that nature exists, communication, electric power, the operation of a large amount of equipment and communications and transportation are also with artificial electromagnetic interference, electronic technology itself is again towards high frequency, high speed, high sensitivity, high reliability, multifunction, miniaturization, large scale integration, complicated and high-power, small-signal applications future development, therefore electromagnetic interference problem is more and more outstanding, has become much equipment, can system bring into normal play the obstacle acted on.In the information age, the High power electromagnetic environment constituted a serious threat to information equipment enjoys the attention of people.
GPRS communication check technology is a technology that is more ripe, that extensively use at home and abroad, mainly be used in the test of the industry such as mobile phone, M2M, by use universal standard instrument (Luo De of U.S.'s Agilent, Germany. Schwarz company), virtual instrument and software, build a GPRS communication check platform and carry out quantitative analysis.Present stage, if can the electromagnetic interference environment of simulated field better be the difficult problem run in test macro, this be that a kind of instrument that can be used for simulating actual test environment of exploitation provides possibility to be widely used in power department device detection system.In this context, to develop a kind of interference source device for the test of concentrator GPRS communication automation system be power department and metrological service in the urgent need to, this detection department better on-the-spot electromagnetic interference environment that is virtually reality like reality provides convenience, and has been conducive to authenticity and the reliability demonstration of test products.
By the retrieval of patent document, not yet find the patent documentation identical with the utility model application.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of interference source device for the test of concentrator GPRS communication automation system is provided, the electromagnetic interference environment of the various reality at this unit simulation scene, for GPRS communication automation system test macro provides simulation interference source signal reliably, ensure reliability and the authenticity of test macro.
The purpose of this utility model is achieved through the following technical solutions:
A kind of interference source device for the test of concentrator GPRS communication automation system, comprise interference source, shielded box, coupler and main control system, in shielded box bottom, main control system is installed, shielded box inside ceiling panel is fixedly mounted with coupler, shielded box is fixedly mounted with interference source, interference source is communicated with the coupler in shielded box by radio frequency line and plug, this interference source is also connected with main control system by gpib bus; The coupled antenna of described coupler comprises grounding disc, radiation patch, air dielectric layer and feed substrate, microstrip feed line, grounding disc is shaped with a concentric oval coupling slot, between the groove of this concentration ellipse shape coupling slot, gap is equal, a radiation patch is being fixedly mounted with to should plane cover the grounding disc of concentration ellipse shape coupling slot, this radiation patch adopts circular patch, is fixedly mounted with the air dielectric layer of between radiation patch and grounding disc; Be fixedly mounted with a FR4 feed substrate at grounding disc to bottom surface, the axis position along radiation patch below feed substrate is fixedly mounted with a microstrip feed line.
And described microstrip feed line is connected to the radial direction of concentration ellipse shape coupling slot major axis, its open end is 6 millimeters to the distance of central point.
Advantage of the present utility model and good effect are:
1, this device is by setting up external electromagnetic field to external interference models such as the concentration ellipse shape coupling slot antenna models that communication equipment disturbs, for test macro provides GPRS interference signal model to select, ensure the authenticity of test environment, really accomplish the various interference that can run in the operational environment that acquisition terminal is actual at the scene, ensure the accuracy to acquisition terminal testing of equipment and reliability.
2, this device can under the assistance of electric unit, mechanical structure unit, electric power system and control unit, unit of plugging into, jacking positioning unit, automatic delivery unit etc., achieve full automation, realize with automatic assembly line without slot coupling, started the precedent that gprs communication module realizes full Performance Detection on acquisition terminal complete machine.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 is the block diagram of the utility model control circuit;
Fig. 3 is the structural front view of the utility model coupler antenna;
Fig. 4 is that the A-A of Fig. 3 is to cross-sectional view;
Fig. 5 is the structural representation removing radiation patch and dielectric layer of Fig. 3;
Fig. 6 is the rearview of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described; The present embodiment is descriptive, is not determinate, can not limit protection range of the present utility model thus.
A kind of interference source device for the test of concentrator GPRS communication automation system, comprise interference source 2, shielded box 1, coupler 3 and main control system 5, in shielded box bottom, main control system is installed, shielded box inside ceiling panel is fixedly mounted with coupler, shielded box is fixedly mounted with interference source, interference source is communicated with the coupler in shielded box by radio frequency line 4 and plug, this interference source is also connected with main control system by gpib bus.
Control circuit of the present utility model comprises master-oscillator, delay-level, pulse-shaping stage, shaping stage and output stage, see Fig. 2.Wherein master-oscillator: adopting astatic multivibrator, crystal oscillator and phase-locked oscillator, is the core of pulse signal, determines the repetition rate exporting pulse, has good adjusting function; Delay-level: adopt monostable trigger-action circuit and differential circuit composition, mainly export lock-out pulse; Pulse-shaping stage: be made up of monostable flipflop impulse circuit, produces the rectangular pulse that width is accurate, waveform is good, and pulse duration Independent adjustable, there is higher stability; Shaping output stage: be made up of amplification and amplitude limiter circuit.Shaping stage has circuit amplification, and output stage has power amplification effect, can sine wave output, square wave, pulse, triangular wave, sawtooth waveforms, oblique wave; Frequency range: 1-10Hz, 10-100Hz, 100-1000Hz, 1-10KHz, 10-100KHz, 100KHz-1MHz; Output voltage: for sinusoidal signal, the peak-to-peak value of general output voltage, can reach more than 10Upp usually, for digital pulse signal, then comprises TTL and CMOS level, therefore can provide reliable and stable interference signal.
Coupled antenna in coupler involved by the utility model is a kind of transducer, during transmitting, the high-frequency current of transmitter is converted into spatial electromagnetic ripple; During reception, the electromagnetic wave intercepted and captured is converted to high-frequency current sends into receiver from space.Its structure is see Fig. 3,4,5,6:
Grounding disc 6 is shaped with a concentric oval coupling slot 10, a radiation patch 8 is being fixedly mounted with to should plane cover the grounding disc of concentration ellipse shape coupling slot, this radiation patch adopts circular patch, its radius R=12.8 millimeter, are fixedly mounted with the air dielectric layer 7 that a thickness is 2 millimeters between radiation patch and grounding disc; The FR4 feed substrate 11 that a dielectric constant is 4.4, thickness is 1mm is fixedly mounted with at grounding disc bottom surface, a microstrip feed line 9 is fixedly mounted with along the axis position of radiation patch below feed substrate, the width of this microstrip feed line is 2mm, to ensure that the input impedance of feeder line is 50 ohms.
In practical application, consider the aspects such as the firmness of antenna structure and impact resistance, air dielectric layer can be considered to adopt the materials such as the close foam of dielectric constant to fill; Between the groove of the concentration ellipse shape coupling slot that grounding disc is made, gap is equal, and microstrip feed line is connected to the radial direction of concentration ellipse shape coupling slot major axis, and its open end is 6 millimeters to the distance of central point, to ensure that the input impedance of microstrip antenna obtains good coupling.
Operation principle of the present utility model is:
Interference source is connected with main control system by gpib bus, in test process, main control system issues control command by gpib bus to interference source, interference source is allowed to produce the interference signal of assigned frequency, after interference source produces interference signal, just by radio frequency line, interference signal is transferred in each shielded box, and then interference is produced to the wireless module in shielded box.
Claims (2)
1. the interference source device for the test of concentrator GPRS communication automation system, it is characterized in that: comprise interference source, shielded box, coupler and main control system, in shielded box bottom, main control system is installed, shielded box inside ceiling panel is fixedly mounted with coupler, shielded box is fixedly mounted with interference source, interference source is communicated with the coupler in shielded box by radio frequency line and plug, this interference source is also connected with main control system by gpib bus; The coupled antenna of described coupler comprises grounding disc, radiation patch, air dielectric layer and feed substrate, microstrip feed line, grounding disc is shaped with a concentric oval coupling slot, between the groove of this concentration ellipse shape coupling slot, gap is equal, a radiation patch is being fixedly mounted with to should plane cover the grounding disc of concentration ellipse shape coupling slot, this radiation patch adopts circular patch, is fixedly mounted with the air dielectric layer of between radiation patch and grounding disc; Be fixedly mounted with a FR4 feed substrate at grounding disc to bottom surface, the axis position along radiation patch below feed substrate is fixedly mounted with a microstrip feed line.
2. the interference source device for the test of concentrator GPRS communication automation system according to claim 1, it is characterized in that: described microstrip feed line is connected to the radial direction of concentration ellipse shape coupling slot major axis, its open end is 6 millimeters to the distance of central point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090219.5U CN204539162U (en) | 2015-02-08 | 2015-02-08 | A kind of interference source device for the test of concentrator GPRS communication automation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090219.5U CN204539162U (en) | 2015-02-08 | 2015-02-08 | A kind of interference source device for the test of concentrator GPRS communication automation system |
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| CN204539162U true CN204539162U (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245296A (en) * | 2015-09-25 | 2016-01-13 | 国网天津市电力公司 | Concentrator GPRS communication test system and method |
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2015
- 2015-02-08 CN CN201520090219.5U patent/CN204539162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245296A (en) * | 2015-09-25 | 2016-01-13 | 国网天津市电力公司 | Concentrator GPRS communication test system and method |
| CN105245296B (en) * | 2015-09-25 | 2018-11-06 | 国网天津市电力公司 | A kind of concentrator GPRS communication test systems and method |
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