CN205754359U - Gridding centralized aviation interference monitoring system - Google Patents
Gridding centralized aviation interference monitoring system Download PDFInfo
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- CN205754359U CN205754359U CN201620454318.1U CN201620454318U CN205754359U CN 205754359 U CN205754359 U CN 205754359U CN 201620454318 U CN201620454318 U CN 201620454318U CN 205754359 U CN205754359 U CN 205754359U
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- gps
- frequency sensor
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Abstract
The utility model discloses a kind of gridding centralized aviation interference monitoring system, including multiple signal monitoring devices, multiple VPN route, at least one processing server and at least one monitoring center, described signal monitoring device includes reception antenna, gps antenna and radio frequency sensor；Described reception antenna receives and radiates skyborne electric wave and send to radio frequency sensor, and the outfan of gps antenna is also connected with radio frequency sensor, and signal is processed and passes through VPN route and sends to processing server by radio frequency sensor.This utility model is in order to improve dynamic range and the receiving sensitivity of radio frequency sensor, utilize analog digital conversion and digital down-conversion technology after mixing, analog radio frequency is become digital intermediate frequency, then the process to digital intermediate frequency and analysis are realized with fpga chip, increase antenna multy-way switching port and GPS processing module for reducing multipath effect and the clock synchronous service of TDOA location, effectively reduction radio frequency sensor and the cost of whole system simultaneously.
Description
Technical field
This utility model relates to a kind of gridding centralized aviation interference monitoring system.
Background technology
Along with radiotechnics is in the use more and more widely of all trades and professions, airport radio communicating channel is by interference that other radio signals are increasingly severe.These interference are ubiquitous, and air traffic radio communication channel all may be interfered and block by the radio transmitter of radiobroadcasting, cell phone system and various different purposes.Radio interference also results in huge threat to the air traffic control system on airport.Light then course that aircraft can be made to change its original or make flight be delayed and bring huge positive loss, heavy then threaten safety and the life security of numerous passengers of aircraft.The aviation accident caused because radio channel is interfered sees space in a newspaper the most frequently.The importance of " aviation Interference Detection system " is self-evident.This system can be used for intercepting and capturing, monitor and positioning under various geographical environment the radio interference source of various frequency range.
Domestic gridding monitoring technology is also in brand-new developmental stage, and traditional detecting system can not meet the demand of social development.Traditional monitoring device builds some radio fixed monitoring stations with remote interval; but the monitoring meanss such as traditional large-scale fixed monitoring station and small-sized monitoring station are difficult to be rapidly completed every accurate monitoring task; key area to be protected is needed to be difficult to cover especially for some; being more difficult to various weak power signals, the interference signal of burst, short persistent signal etc. intercept and capture, therefore electromagnetic spectrum monitoring systems face is challenged greatly.
Now increasing wireless communication system is kept in mind the directions such as higher carrier frequency, broader signal broadband and lower radiant power and is developed, and the application feature such as meshing, honeycomb, topical application starts progressively to manifest.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of gridding centralized aviation interference monitoring system.
The purpose of this utility model is achieved through the following technical solutions: a kind of gridding centralized aviation interference monitoring system includes multiple signal monitoring device, multiple VPN route, at least one processing server and at least one monitoring center, and described signal monitoring device includes reception antenna, gps antenna and radio frequency sensor；Described reception antenna receives and radiates skyborne electric wave and send to radio frequency sensor, the outfan of gps antenna is also connected with radio frequency sensor, signal is processed and passes through VPN route and sends to processing server by radio frequency sensor, the data of passback are processed by described processing server, and processing server is connected with monitoring center；
Described radio frequency sensor includes three input ports and an output port, and described radio frequency sensor includes single-pole double-throw switch (SPDT), logic amplifier, preselector, frequency mixer, local oscillator, intermediate frequency amplifier, ADC, FPGA and GPS；First reception antenna is not connected moved end with one of them of single-pole double-throw switch (SPDT) by first input port, second reception antenna is connected with the another one not moved end of single-pole double-throw switch (SPDT) by the second input port, the moved end of single-pole double-throw switch (SPDT) is connected with the input of logic amplifier, the outfan of logic amplifier is connected with preselector, the outfan of preselector is connected with the first input end of frequency mixer, the outfan of local oscillator is connected with the second input of frequency mixer, the outfan of frequency mixer is connected with intermediate frequency amplifier, the outfan of intermediate frequency amplifier is connected with ADC, the outfan of ADC is connected with FPGA, gps antenna is connected with GPS by the 3rd input port, GPS is connected with FPGA, the outfan of FPGA is connected with VPN route by output port.
Described FPGA includes DDC, trigger, capture memorizer, FFT and CPU, DDC receives the signal from ADC input, DDC is connected with trigger, capture memorizer, FFT respectively, trigger, capture memorizer, FFT with CPU are connected, the outfan of described GPS is connected with CPU, and the result treatment outfan of CPU is connected with VPN route by output port.
Described reception antenna is omnidirectional antenna.
Described reception antenna includes sleeve and antenna transmission system, and sleeve is provided with RF cable interface, and sleeve bottom is provided with mounting seat；Sleeve inner central authorities are provided with antenna mounting conductor tube, antenna transmission system includes dipole, power divider, feed element and feeder line, dipole, is welded in antenna mounting conductor tube vertically, every electrode couple is constituted by two relative and spaced oscillators, power divider is connected with RF cable interface, the outfan of power divider connects at least two feeder lines, and every feeder line connects an oscillator in dipole by feed element.
It is additionally provided with installing hole in described mounting seat.
The upper end of described antenna mounting conductor tube is provided with upper supporting piece, and lower end is provided with lower support element.
The beneficial effects of the utility model are:
(1) this utility model is in order to improve dynamic range and the receiving sensitivity of radio frequency sensor, utilize analog digital conversion and digital down-conversion technology after mixing, analog radio frequency is become digital intermediate frequency, then the process to digital intermediate frequency and analysis are realized with fpga chip, increase antenna multy-way switching port and GPS processing module for reducing multipath effect and the clock synchronous service of TDOA location simultaneously, the placement of unmanned outdoor can be realized, effectively reduce radio frequency sensor and the cost of whole system, it is possible to meet fundamental surveillance functional requirement.
(2) omnidirectional antenna omnirange of the present utility model, volume be little, lightweight, convenient transportation, arranges mounting seat, easy for installation, arrange RF cable interface, convenient and fast connection.
Accompanying drawing explanation
Fig. 1 is this utility model connection diagram；
Fig. 2 is radio frequency sensor and reception antenna connection diagram；
Fig. 3 is reception antenna external structure；
Fig. 4 is reception antenna interior layout figure；
In figure, 1-sleeve, 2-RF cable interface, 3-mounting seat, 4-installing hole, 5-power divider, 6-feeder line, 7-lower support element, 8-dipole, 8.1,8.2-oscillator, 9-feed element, 10-antenna mounting conductor tube, 11-support member.
Detailed description of the invention
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of gridding centralized aviation interference monitoring system includes multiple signal monitoring device, multiple VPN route, at least one processing server and at least one monitoring center, and described signal monitoring device includes reception antenna, gps antenna and radio frequency sensor；Described reception antenna receives and radiates skyborne electric wave and send to radio frequency sensor, the outfan of gps antenna is also connected with radio frequency sensor, signal is processed and passes through VPN route and sends to processing server by radio frequency sensor, the data of passback are processed by described processing server, and processing server is connected with monitoring center；
Described radio frequency sensor includes three input ports and an output port, and described radio frequency sensor includes single-pole double-throw switch (SPDT), logic amplifier, preselector, frequency mixer, local oscillator, intermediate frequency amplifier, ADC, FPGA and GPS；First reception antenna is not connected moved end with one of them of single-pole double-throw switch (SPDT) by first input port, second reception antenna is connected with the another one not moved end of single-pole double-throw switch (SPDT) by the second input port, the moved end of single-pole double-throw switch (SPDT) is connected with the input of logic amplifier, the outfan of logic amplifier is connected with preselector, the outfan of preselector is connected with the first input end of frequency mixer, the outfan of local oscillator is connected with the second input of frequency mixer, the outfan of frequency mixer is connected with intermediate frequency amplifier, the outfan of intermediate frequency amplifier is connected with ADC, the outfan of ADC is connected with FPGA, gps antenna is connected with GPS by the 3rd input port, GPS is connected with FPGA, the outfan of FPGA is connected with VPN route by output port.
Processing server has only to purchase existing equipment, it is not necessary to improve its software, such as Huawei RH5885V3 server.
Described FPGA includes DDC, trigger, capture memorizer, FFT and CPU, DDC receives the signal from ADC input, DDC is connected with trigger, capture memorizer, FFT respectively, trigger, capture memorizer, FFT with CPU are connected, the outfan of described GPS is connected with CPU, and the result treatment outfan of CPU is connected with VPN route by output port.
Trigger Function is to include frequency triggering, level triggers, power trigger etc..It is substantially achieved in that and the data processed through FPGA is compared one by one with the triggering template data inputted by host interface, if meeting the trigger condition set, then produce and trigger signal, if being unsatisfactory for trigger condition, compare, until host interface stops Trigger Function or has the signal meeting trigger condition to trigger always.The difference of the position according to the trigger data compared, determines to trigger the difference of template, determines the difference of triggering mode.Realizing in the middle of process at Trigger Function, any one signal of continuous print all can compare with triggering template data in time, this ensures that there compare data without losing, seamless characteristic, it is achieved thereby that without losing Trigger Function.
Captured in real time dynamic memory function is to need to coordinate realization with Trigger Function.Capture storage function is exactly by FPGA (Field Programmable by data
Gate Array, field programmable gate array) interface is written to capture storage.Storage depth before and after master port to be first passed through arranges triggering before carrying out triggering capture storage.When data can not meet trigger condition time, data are written in capture storage always, trigger signal if never generated, and the data of write capture memorizer refresh always, and these data are continuous print in time.If triggering signal to generate, then start to write the data of the most defined storage depth in capture memorizer, writing full stopping afterwards writing, the data meeting trigger condition storage depth at this moment write capture memorizer and updated data in capture memorizer constitute to meet the trigger condition signal data data continuous in time as separation.Said process achieves storing without losing to capture of signal data.
Specifically can refer to application number 201120316897.0 triggers and the function of capture storage without losing, it is not necessary to its software is improved, is existing technology.
Described reception antenna is omnidirectional antenna.
Described reception antenna includes sleeve 1 and antenna transmission system, sleeve 1 is provided with RF cable interface 2, is provided with mounting seat 3 bottom sleeve 1；Sleeve 1 center of inside is provided with antenna mounting conductor tube 10, antenna transmission system includes dipole 8, power divider 5, feed element 9 and feeder line 6, dipole 8, is welded in antenna mounting conductor tube 10 vertically, every electrode couple 8 is constituted by two relative and spaced oscillators 8.1,8.2, power divider 5 is connected with RF cable interface 2, the outfan of power divider 5 connects at least two feeder lines 6, and every feeder line 6 connects the oscillator 8.1,8.2 in dipole 8 by feed element 9.
It is additionally provided with installing hole 4 in described mounting seat 3.
The upper end of described antenna mounting conductor 10 is provided with upper supporting piece 11, and lower end is provided with lower support element 7.
Claims (6)
1. a gridding centralized aviation interference monitoring system, it is characterized in that: including multiple signal monitoring device, multiple VPN route, at least one processing server and at least one monitoring center, described signal monitoring device includes reception antenna, gps antenna and radio frequency sensor；Described reception antenna receives and radiates skyborne electric wave and send to radio frequency sensor, the outfan of gps antenna is also connected with radio frequency sensor, signal is processed and passes through VPN route and sends to processing server by radio frequency sensor, the data of passback are processed by described processing server, and processing server is connected with monitoring center；
Described radio frequency sensor includes three input ports and an output port, and described radio frequency sensor includes single-pole double-throw switch (SPDT), logic amplifier, preselector, frequency mixer, local oscillator, intermediate frequency amplifier, ADC, FPGA and GPS；First reception antenna is not connected moved end with one of them of single-pole double-throw switch (SPDT) by first input port, second reception antenna is connected with the another one not moved end of single-pole double-throw switch (SPDT) by the second input port, the moved end of single-pole double-throw switch (SPDT) is connected with the input of logic amplifier, the outfan of logic amplifier is connected with preselector, the outfan of preselector is connected with the first input end of frequency mixer, the outfan of local oscillator is connected with the second input of frequency mixer, the outfan of frequency mixer is connected with intermediate frequency amplifier, the outfan of intermediate frequency amplifier is connected with ADC, the outfan of ADC is connected with FPGA, gps antenna is connected with GPS by the 3rd input port, GPS is connected with FPGA, the outfan of FPGA is connected with VPN route by output port.
A kind of gridding centralized aviation interference monitoring system the most according to claim 1, it is characterized in that: described FPGA includes DDC, trigger, capture memorizer, FFT and CPU, DDC receives the signal from ADC input, DDC is connected with trigger, capture memorizer, FFT respectively, trigger, capture memorizer, FFT with CPU are connected, the outfan of described GPS is connected with CPU, and the result treatment outfan of CPU is connected with VPN route by output port.
A kind of gridding centralized aviation interference monitoring system the most according to claim 1, it is characterised in that: described reception antenna is omnidirectional antenna.
4. according to a kind of gridding centralized aviation interference monitoring system described in claim 1 or 3, it is characterized in that: described reception antenna includes sleeve (1) and antenna transmission system, being provided with RF cable interface (2) on sleeve (1), sleeve (1) bottom is provided with mounting seat (3)；Sleeve (1) center of inside is provided with antenna mounting conductor tube (10), antenna transmission system includes dipole (8), power divider (5), feed element (9) and feeder line (6), dipole (8), is welded in antenna mounting conductor tube (10) vertically, every electrode couple (8) is by two relative and spaced oscillators (8.1, 8.2) constitute, power divider (5) is connected with RF cable interface (2), the outfan of power divider (5) connects at least two feeder lines (6), every feeder line (6) connects an oscillator (8.1 in dipole (8) by feed element (9), 8.2).
A kind of gridding centralized aviation interference monitoring system the most according to claim 4, it is characterised in that: it is additionally provided with installing hole (4) in described mounting seat (3).
A kind of gridding centralized aviation interference monitoring system the most according to claim 4, it is characterised in that: the upper end of described antenna mounting conductor tube (10) is provided with upper supporting piece (11), and lower end is provided with lower support element (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620454318.1U CN205754359U (en) | 2016-05-18 | 2016-05-18 | Gridding centralized aviation interference monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620454318.1U CN205754359U (en) | 2016-05-18 | 2016-05-18 | Gridding centralized aviation interference monitoring system |
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| CN205754359U true CN205754359U (en) | 2016-11-30 |
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| CN201620454318.1U Expired - Fee Related CN205754359U (en) | 2016-05-18 | 2016-05-18 | Gridding centralized aviation interference monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871485A (en) * | 2016-05-18 | 2016-08-17 | 成都福兰特电子技术股份有限公司 | Gridding centralized type aviation interference monitoring system and method thereof |
| CN111880199A (en) * | 2020-09-08 | 2020-11-03 | 中国民用航空飞行学院 | GNSS decoy interference signal detection method for airport terminal area |
-
2016
- 2016-05-18 CN CN201620454318.1U patent/CN205754359U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871485A (en) * | 2016-05-18 | 2016-08-17 | 成都福兰特电子技术股份有限公司 | Gridding centralized type aviation interference monitoring system and method thereof |
| CN111880199A (en) * | 2020-09-08 | 2020-11-03 | 中国民用航空飞行学院 | GNSS decoy interference signal detection method for airport terminal area |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |