CN109598982A - A kind of airborne surveillance system based on multilink - Google Patents
A kind of airborne surveillance system based on multilink Download PDFInfo
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- CN109598982A CN109598982A CN201811471110.0A CN201811471110A CN109598982A CN 109598982 A CN109598982 A CN 109598982A CN 201811471110 A CN201811471110 A CN 201811471110A CN 109598982 A CN109598982 A CN 109598982A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 8
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft
- G08G5/70—Arrangements for monitoring traffic-related situations or conditions
-
- 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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aviation & Aerospace Engineering (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Alarm Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明涉及一种基于多链路的机载监视系统。本发明包含综合处理单元、交通天线单元、GNSS天线、卫星天线单元；所述交通天线单元用于接收全向天线感应的L波段的射频信号并送往综合处理单元；所述综合处理单元监听并检测机载监视设备的运行状态，如设备正常则所述机载监视系统保持静默状态，否则将通过卫星链路、ADS‑B以及北斗短报文输出监视信息；所述卫星天线单元用于收发卫星通讯信号；所述GNSS天线接收北斗导航卫星及其GNSS的导航定位信息。本发明实现对现有机载监视设备的监测，在系统异常时通过多种链路实现输出航空器的监视信息；本发明仅需接入应急电源，即可完成系统的功能，实现不受人为失误和恶意入侵影响的飞机监视信息的获取与传输。
The present invention relates to a multi-link based airborne monitoring system. The present invention includes an integrated processing unit, a traffic antenna unit, a GNSS antenna, and a satellite antenna unit; the traffic antenna unit is used to receive the L-band radio frequency signal induced by the omnidirectional antenna and send it to the integrated processing unit; Detect the running status of the airborne monitoring equipment, if the equipment is normal, the airborne monitoring system will keep silent, otherwise it will output monitoring information through satellite links, ADS‑B and Beidou short messages; the satellite antenna unit is used for sending and receiving Satellite communication signals; the GNSS antenna receives the navigation and positioning information of Beidou navigation satellites and their GNSS. The invention realizes the monitoring of the existing airborne monitoring equipment, and realizes the output of the monitoring information of the aircraft through various links when the system is abnormal; the invention only needs to connect to the emergency power supply to complete the functions of the system, and realizes no human error. and the acquisition and transmission of aircraft surveillance information affected by malicious intrusions.
Description
Technical field
The invention belongs to airborne technologies, are related to a kind of airborne surveillance system based on multilink.
Background technique
Current Chinese Aviation Transportation industry is fast-developing, and aircraft quantity quicklys increase, however but deposits to the monitoring of aircraft
In biggish security risk, the safe and highly efficient operation of China's aviation industry can not be supported.Horse boat MH370 lost contact in 2014 is again
The alarm bell of aviation monitoring safety is beaten, hidden danger is mainly manifested in:
(a) human factor can relatively easily invade aircraft efficient public security system, when occur pilot's manual operation and
The case where leading to communication disruption, loss of data, monitoring obstacle, currently it can guarantee to continue aircraft there are no effective means
Monitoring；
(b) the current aerospace device inspection system Global coverage scarce capacity based on ground surveillance means, single system
Aircraft monitoring information is blocked vulnerable to extraneous factor under framework.
Summary of the invention
The purpose of the present invention is: the present invention provides a kind of spare aircraft monitoring systems, realize not by human error
The acquisition and transmission of the aircraft surveillance information influenced with malicious intrusions are not influencing the case where existing airborne equipment works normally
Under, reliable surveillance coverage is provided for aircraft.
Technical solution of the present invention is realized: a kind of airborne surveillance system based on multilink, comprising integrated treatment unit, is handed over
Logical antenna element, GNSS antenna, satellite antenna unit；The traffic antenna element is used to receive the L-band of omnidirectional antenna induction
Radiofrequency signal and be sent to integrated treatment unit；The integrated treatment unit is monitored and detects the operation shape of airborne supervision equipment
State, equipment normally if as described in airborne surveillance system keep silent status, otherwise will pass through satellite link, ADS-B and Beidou
Short message output monitoring information；The satellite antenna unit is for receiving and dispatching satellite communication signal；The GNSS antenna receives Beidou
The navigator fix information of navigation satellite and its GNSS.
Compared with prior art, the invention has the following advantages:
The present invention realizes the monitoring to existing Airborne Surveillance, Airborne Control equipment, realizes output boat by a variety of links in system exception
The monitoring information of pocket；Airborne monitoring system of the present invention uses lossless mounting design, it is only necessary to access emergency power supply, can be completed and be
The function of system realizes the acquisition and transmission of the aircraft surveillance information not influenced by human error and malicious intrusions；The present invention is with logical
Cross link redundancy and the backup of different dimensions, the link management under different Run-time scenarios is based on link energy under different operating statuses
The measures such as the information grading of power, as far as possible guarantee aircraft key message can not be extraneous dry by equipment failure, artificial exception etc.
It disturbs.
Detailed description of the invention
Fig. 1 is a kind of airborne surveillance system crosslinking figure based on multilink.
Fig. 2 is a kind of airborne surveillance system functional block diagram based on multilink.
Fig. 3 is integrated treatment unit physics block diagram.
Fig. 4 is L-band rf integration functions of modules block diagram.
Fig. 5 is comprehensive control management and power module functional block diagram.
Fig. 6 is satellite communication module functional block diagram.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
As shown in Figure 1, it is a kind of based on the airborne surveillance system of multilink by 1 integrated treatment unit, 2 traffic antenna lists
Member, 1 GNSS antenna, 1 satellite antenna unit composition.
Integrated treatment unit is monitored and detects the various states of airborne system, and when listening to system exception, this system will
Start control of making decisions on one's own, select correct data link, passes through S mode, A/C mode, ADS-B mode output monitoring letter
Breath.GNSS antenna receives the navigator fix information of Beidou navigation satellite and its GNSS, satellite antenna unit provided in emergency and
The transmission of airborne system control and status data.
Integrated treatment unit is the core component of system, mainly by comprehensive control management and power module, L-band radio frequency
Integration module, big dipper multi-mode navigation module, satellite communication module and motherboard composition, the functional block diagram and physics block diagram point of the unit
Not not as shown in Figures 2 and 3.
Comprehensive control management and power module are by PowerPC main processor circuit, fpga logic control circuit, signal acquisition
Circuit, RF transmit-receive circuit, external communication interface circuit, external time service circuit, external memory circuit, monitoring module electricity
The composition such as road, isolation circuit and power circuit, functional block diagram are as shown in Figure 4.FPGA passes through with PowerPC main processor circuit
Local bus connection, PowerPC main processor circuit run Vxworks operating system.Comprehensive control management and power module are logical
Motherboard, radio-frequency cable and L-band rf integration module is crossed to interconnect.The electricity of airborne DC power supply needed for the module also completion system
Buckling is changed.
L-band rf integration module receives circuit, 2 channels by day line options and transmit-receive switch circuit, 2 channel 1030MHz
1030MHz/1090MHz transmit circuit, 2 channel 1090MHz receive circuit composition, and basic function circuit is as shown in Figure 5.2 channels
Transmit circuit generates the PAM+ that carrier wave is 1030MHz/1090MHz according to the control signal from integrated treatment and power module
Request signal, the 2 channel 1090MHz of BPSK modulation receive circuit and receive the 1090MHz signal from antenna, are down-converted to
Vision signal after intermediate-freuqncy signal and detection is sent to integrated treatment module by 60MHz intermediate-freuqncy signal, detection.2 channel 1030MHz
Receiver receives the 1030MHz signal from traffic antenna element, is down-converted to 60MHz intermediate-freuqncy signal, detection, intermediate-freuqncy signal
It is sent to integrated treatment module with the vision signal after detection, each transmission channel can carry out power control respectively.
Big dipper multi-mode navigation module can receive the positioning and time service of Beidou, GPS navigation data source using commercial goods shelf products
Information, and Big Dipper short message can be transmitted as needed.
Satellite communication module uses 781 standard architecture of ARINC, and module is by satellite data unit, radio frequency unit, high power
Amplifier, low-noise amplifier and Beamsteering Unit composition, satellite data unit mainly complete satellite communications services access,
Protocol stack processing, radio-frequency channel processing.Duplex/low-noise amplifier is given antenna reception signal and is amplified, and transmitting is prevented
Power is coupled to receiving end.
Traffic antenna element is omnidirectional antenna of the work in L frequency range, the main inquiry and response for completing transmitting-receiving A/C/S mode
Radiofrequency signal, receive and dispatch ADS-B radiofrequency signal.
GNSS antenna completes the reception to Beidou/GPS bimodulus navigation signal.
Satellite antenna unit completes the transmitting-receiving with the radiofrequency signal of satellite communication.
System of the invention uses lossless mounting design, it is only necessary to and emergency power supply is accessed, the basic function of system can be completed,
Signal can also being controlled according to ground and actively entering specified operating mode, specific works mode is as follows:
1) automatic operation mode
(a) avionics system is without directly physical crosslinking operating mode:
System monitors 1090MHz ADS-B Radio Link, from the big dipper multi-mode navigation information of monitoring data and itself,
By comprehensive analysis and assessment, the working condition of airborne surveillance system and its validity of transmitting information are judged.Work as Airborne Surveillance, Airborne Control
When equipment works normally, system is in radio listening silence state；If it is abnormal to detect that original machine supervision equipment occurs, including original machine prison
Situations such as depending on equipment transmitting information mistake or stopping emission signal, this system will be directed to mistake by three basic link transmittings
The alarm signal and normal monitoring information of information: emitted correctly by 1090MHz ADS-B link with frequency as defined in DO260B
Positioning monitoring information, while providing the wrong mark of aircraft original monitoring system location information；Pass through autonomous telecommunication satellite link
Emit above three category informations with 1 frequency per minute；By Big Dipper short message with every 1 minute 1 time frequency transmitting above three
Category information.
(b) the limited crosslinking operating mode of avionics system:
System has open architecture and universalized connection, can atmosphere data selectively on access machine according to the actual situation
The avionics systems such as machine, inertial reference system, satellite based navigational system, centralized maintenance system.Integrated treatment unit will make full use of original
Machine avionics system provide various data, in conjunction with itself ADS-B link monitoring data and the big dipper multi-mode navigation information of itself, it is right
The working condition of original machine monitoring system makes more reasonable judgement.
(c) backup power source automatic operation mode:
When various reasons lead to emergency power supply failure, system will automatically switch to backup power source operating mode.In the mould
Under formula, system will with lower frequency emit ADS-B link signal (1 time per minute), Big Dipper short message (every 15 minutes 1 time) and
Autonomous telecommunication satellite link communications signal (every 15 minutes 1 time) guarantees the basic operation of function for monitoring and communication function.
2) ground controls operating mode
When necessary, ground will pass through 1030MHz blank pipe link, autonomous telecommunication satellite chain road direction multilink
Airborne surveillance system sends control instruction, and system forwards the machine monitors the relevant information of range (100 nautical miles) interior assigned aircraft.It should
Function can be used for finding the aircraft of specified S mode address in the world.In such a way that control forwards his machine information, own
The aircraft for equipping the system forms a huge absolutely empty monitoring network.By the relay of the network information, by searching rapidly and efficiently
Seek the aircraft of specified S mode.
Claims (5)
1. a kind of airborne surveillance system based on multilink, it is characterized in that: the airborne surveillance system include integrated treatment unit,
Traffic antenna element, GNSS antenna, satellite antenna unit；The traffic antenna element is used to receive the L wave of omnidirectional antenna induction
The radiofrequency signal of section is simultaneously sent to integrated treatment unit；The integrated treatment unit is monitored and detects the operation shape of airborne supervision equipment
State, equipment normally if as described in airborne surveillance system keep silent status, otherwise will pass through satellite link, ADS-B and Beidou
Short message output monitoring information；The satellite antenna unit is for receiving and dispatching satellite communication signal；The GNSS antenna receives Beidou
The navigator fix information of navigation satellite and its GNSS.
2. airborne surveillance system according to claim 1, it is characterized in that: the integrated treatment unit includes comprehensively control pipe
Reason and power module, L-band rf integration module, big dipper multi-mode navigation module, satellite communication module and motherboard.
3. airborne surveillance system according to claim 2, it is characterized in that: the comprehensive control management and power module by
PowerPC main processor circuit, fpga logic control circuit, signal acquisition circuit, RF transmit-receive circuit, external communication interface electricity
Road, external time service circuit, external memory circuit, monitoring module circuit, isolation circuit and power circuit composition；It is described
Fpga logic control circuit is connect with PowerPC main processor circuit by local bus, the operation of PowerPC main processor circuit
Vxworks operating system；The comprehensive control management and power module pass through motherboard, radio-frequency cable and L-band rf integration mould
Block interconnection；The voltage transformation of airborne DC power supply needed for the comprehensive control management and power module completion system.
4. airborne surveillance system according to claim 2, it is characterized in that: the L-band rf integration module is by day line selection
It selects and transmit-receive switch circuit, 2 channel 1030MHz receives circuit, 2 channel 1030MHz/1090MHz transmit circuits, 2 channels
1090MHz receives circuit composition；2 channel 1030MHz/1090MHz transmit circuits are according to from integrated treatment and power module
It controls signal and generates request signal, the 2 channel 1090MHz reception electricity that the PAM+BPSK that carrier wave is 1030MHz/1090MHz is modulated
Road receives the 1090MHz signal from antenna, is down-converted to 60MHz intermediate-freuqncy signal, detection, the view after intermediate-freuqncy signal and detection
Frequency signal is sent to integrated treatment module；2 channel 1030MHz receivers receive the 1030MHz signal from traffic antenna element, under
It is converted to 60MHz intermediate-freuqncy signal, the vision signal after intermediate-freuqncy signal and detection is sent to integrated treatment module, Mei Gefa by detection
Power control can be carried out respectively by penetrating channel.
5. airborne surveillance system according to claim 2, it is characterized in that: the satellite communication module uses ARINC 781
Standard architecture is made of satellite data unit, radio frequency unit, high power amplifier, low-noise amplifier and Beamsteering Unit；
The satellite data unit completes the access of satellite communications services, protocol stack processing, radio-frequency channel processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811471110.0A CN109598982B (en) | 2018-12-04 | 2018-12-04 | An Airborne Surveillance System Based on Multiple Links |
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| CN201811471110.0A CN109598982B (en) | 2018-12-04 | 2018-12-04 | An Airborne Surveillance System Based on Multiple Links |
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| CN109598982B CN109598982B (en) | 2021-09-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060515A (en) * | 2019-04-19 | 2019-07-26 | 中国航空无线电电子研究所 | A kind of aircraft monitoring system and method based on GNSS |
| CN111081075A (en) * | 2020-01-19 | 2020-04-28 | 中国民用航空总局第二研究所 | S-mode DAPs data real-time monitoring method and system |
| CN112886974A (en) * | 2021-01-27 | 2021-06-01 | 四川荣川通用航空有限责任公司 | Multifunctional airborne navigation equipment |
| CN113380074A (en) * | 2021-08-13 | 2021-09-10 | 中国民用航空总局第二研究所 | Navigation low-altitude monitoring system and method |
| CN114049796A (en) * | 2021-11-09 | 2022-02-15 | 中国电子科技集团公司第二十八研究所 | A method for directional transmission of ADS-B broadcast signals |
| CN117424629A (en) * | 2023-09-26 | 2024-01-19 | 航天时代飞鹏有限公司 | Fusion monitoring method for unmanned aerial vehicle beyond-vision-distance data link equipment and electronic equipment |
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| CN106291456A (en) * | 2016-07-29 | 2017-01-04 | 中国航空无线电电子研究所 | An ADS‑B ground station with monopulse direction finding function |
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| CN103873133A (en) * | 2014-03-13 | 2014-06-18 | 中国民用航空总局第二研究所 | Communication navigation monitoring system based on multi-mode data link |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060515A (en) * | 2019-04-19 | 2019-07-26 | 中国航空无线电电子研究所 | A kind of aircraft monitoring system and method based on GNSS |
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| CN111081075A (en) * | 2020-01-19 | 2020-04-28 | 中国民用航空总局第二研究所 | S-mode DAPs data real-time monitoring method and system |
| CN112886974A (en) * | 2021-01-27 | 2021-06-01 | 四川荣川通用航空有限责任公司 | Multifunctional airborne navigation equipment |
| CN113380074A (en) * | 2021-08-13 | 2021-09-10 | 中国民用航空总局第二研究所 | Navigation low-altitude monitoring system and method |
| CN113380074B (en) * | 2021-08-13 | 2021-11-05 | 中国民用航空总局第二研究所 | Navigation low-altitude monitoring system and method |
| CN114049796A (en) * | 2021-11-09 | 2022-02-15 | 中国电子科技集团公司第二十八研究所 | A method for directional transmission of ADS-B broadcast signals |
| CN114049796B (en) * | 2021-11-09 | 2022-08-16 | 中国电子科技集团公司第二十八研究所 | Method for directionally transmitting ADS-B broadcast signal |
| CN117424629A (en) * | 2023-09-26 | 2024-01-19 | 航天时代飞鹏有限公司 | Fusion monitoring method for unmanned aerial vehicle beyond-vision-distance data link equipment and electronic equipment |
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