CN110943774B - Method and device for monitoring flight state of airplane in real time - Google Patents
Method and device for monitoring flight state of airplane in real time Download PDFInfo
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- CN110943774B CN110943774B CN201911243209.XA CN201911243209A CN110943774B CN 110943774 B CN110943774 B CN 110943774B CN 201911243209 A CN201911243209 A CN 201911243209A CN 110943774 B CN110943774 B CN 110943774B
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- satellite communication
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- radio frequency
- power amplifier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention provides a real-time aircraft flight state monitoring method and device, which are used for realizing real-time return of aircraft attitude information and position information based on a satellite short message communication function by constructing an independent Beidou RDSS single-shot satellite communication link. The uplink data of the satellite link is uploaded through simulating the signal broadcast by the satellite channel because the single-shot satellite communication link does not have a receiving channel, so that the uplink data of the satellite link is not influenced by Doppler frequency shift of a receiver in the flight process of an airplane. The Beidou RDSS single-shot satellite communication link device is built with extremely low cost, is flexible to apply, can monitor the flight attitude and the flight position of the aircraft in real time, and can be used for actual application scenes such as information communication and rescue of the aircraft and the ground.
Description
Technical Field
The invention relates to the fields of wireless communication and aircraft flight safety, in particular to a method and a device for monitoring an aircraft flight state in real time.
Background
At present, the real-time monitoring and management of the aircraft are difficult, the black box technology only can provide storage of the flight attitude of the aircraft, and the flight condition of the aircraft is read through an external interface, so that the real-time return of the position information of the aircraft cannot be realized, and the aircraft can be monitored by a ground service station.
On the one hand, the flying height of the aircraft exceeds the communication distance of the ground mobile communication base station in the cruising state. The conventional satellite communication system needs to receive the satellite signals before transmitting data to the satellite, and the satellite signals are difficult to receive in the flight process of the aircraft due to the Doppler effect under high-speed movement, so that the satellite communication system is difficult to apply to the aircraft for supervision. Therefore, the problem of high-speed flight communication in the high-speed motion state of the aircraft needs to be solved when the flight supervision of the aircraft is to be realized.
Disclosure of Invention
The invention develops a new way to realize real-time return of aircraft attitude information and position information by constructing an independent Beidou RDSS single-shot satellite communication link based on a satellite short message communication function. The uplink data of the satellite link is uploaded through simulating the signal broadcast by the satellite channel because the single-shot satellite communication link does not have a receiving channel, so that the uplink data of the satellite link is not influenced by Doppler frequency shift of a receiver in the flight process of an airplane.
The invention adopts the following technical scheme:
a real-time aircraft flight state monitoring method is characterized in that: based on Beidou RDSS satellite short message communication, uploading the flight state of the aircraft through a Beidou RDSS single-type satellite communication link.
Further, the ground receiving station receives the flight state information of the aircraft by adopting the Beidou communication front-end processor.
And a corresponding monitoring device scheme, characterized in that: the Beidou RDSS single-shot satellite communication link comprises: a satellite communication baseband circuit, a satellite communication radio frequency modem circuit and a satellite communication power amplifier circuit; the satellite communication baseband circuit is connected with the aircraft controller terminal; the satellite communication power amplifier circuit is connected with an antenna.
Preferably, a baseband chip of the satellite communication baseband circuit adopts an FB310 chip; the satellite communication radio frequency modem circuit adopts an RF2052 radio frequency chip; the satellite communication power amplifier circuit adopts an LDMOS power amplifier with the model of ABA 5412.
Preferably, pin_1 of the FB310 chip is used as an rdx_rdss, configured as a serial port communication interface with TTL level, and connected to an aircraft controller terminal.
Preferably, in the satellite communication radio frequency modem circuit, the RF2052 radio frequency chip is connected in sequence: an output bandpass filter LIF2253, an out-of-band rejection filter SF1616, and a boost stage power amplifier BGA217.
Preferably, the satellite communication baseband circuitry, satellite communication radio frequency modem circuitry and satellite communication power amplifier circuitry are powered by an aircraft on-board power supply.
Preferably, the antenna is arranged at the front windshield of the aircraft.
The invention and the preferable scheme realize the real-time monitoring of the flight state information of the aircraft in the flight process, and the satellite-free receiving channel is not similar to the receiving channel of the traditional Beidou communication equipment and is influenced by Doppler frequency shift. Meanwhile, the Beidou RDSS single-shot satellite communication link device is built with extremely low cost, is flexible to apply, can monitor the flight attitude and the flight position of the aircraft in real time, and can be well used for actual application scenes such as information communication between the aircraft and the ground, rescue and the like.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic diagram of a Beidou RDSS single-mode satellite communication link structure according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a satellite communication baseband circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a satellite communication RF modem circuit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a satellite communication power amplifier circuit according to an embodiment of the invention.
Detailed Description
In order to make the features and advantages of the present patent more comprehensible, embodiments accompanied with figures are described in detail below:
the essence of the scheme of the embodiment is that the airplane in the flight state is simulated to be a satellite, and the flight state of the airplane can be uploaded through a Beidou RDSS single-type satellite communication link based on Beidou RDSS satellite short message communication. At the moment, the ground receiving station can receive the flight state information of the airplane by adopting the Beidou communication front-end processor, and the information can be received by utilizing the conventional equipment.
As shown in fig. 1, the beidou RDSS single-mode satellite communication link includes: a satellite communication baseband circuit, a satellite communication radio frequency modem circuit, and a satellite communication power amplifier circuit. The satellite communication baseband circuit is connected with the aircraft controller terminal; the satellite communication power amplifier circuit is connected to the antenna.
Specifically, as shown in fig. 2, a baseband chip of the satellite communication baseband circuit adopts an FB310 chip to realize the function of the beidou RDSS single-shot satellite communication baseband processing part. The RDX_RDSS and the TXD_RDSS are configured as serial port communication interfaces with TTL levels, and can be connected with an aircraft controller terminal to realize the instruction that the aircraft controller terminal notifies the baseband to initiate a communication application. Considering that the embodiment only needs to send data in one direction, the R75 resistor is a reserved null resistor, and the channel of txd_rdss is not actually enabled. VCC_BB1.2 is the power supply voltage of the baseband processing chip core, and is supplied by an external power supply, C113 and C115 are power supply filter capacitors, and meanwhile, the function of preventing ringing effect caused by power supply current change during power-on and power-off is realized.
As shown in fig. 3, the satellite communication radio frequency modem circuit is implemented by adopting a radio frequency integrated down-conversion chip of an RFMD manufacturer, the RF2052 is provided with a phase-locked loop frequency synthesizer and a down-converter, and the voltage-controlled oscillator part frequency of the phase-locked loop frequency synthesizer is configured through an SPI interface to realize modulation from a baseband signal to a radio frequency signal.
In RF2052, LFILT1, LFILT2, and LFILT3 (pins 6, 7, 8) are connected to low pass filters of the phase-locked loop phase detector output to achieve closed loop control of the voltage controlled oscillator voltage to automatically lock onto the set frequency.
The RF2052 radio frequency chip is connected in sequence: an output bandpass filter LIF2253, an out-of-band rejection filter SF1616, and a boost stage power amplifier BGA217. The LIF2253 filters the up-converted signal, removes the lower sideband signal, and filters the final rf signal. SF1616 primarily prevents out-of-band emissions of radio frequency signals from interfering with other communication devices. BGA217 is implemented to push the output power to +10dBm.
As shown in fig. 4, the satellite communication power amplifier circuit adopts an LDMOS power amplifier with a model number ABA5412, wherein vcc_5 is MOS transistor drain supply current, and vc_2.7 is MOS transistor gate bias voltage, all provided by a power supply circuit design.
In this embodiment, the satellite communication baseband circuitry, the satellite communication radio frequency modem circuitry, and the satellite communication power amplifier circuitry are powered by an aircraft on-board power supply. The antenna can be arranged at the front windshield of the aircraft, so that the antenna is convenient to install and fix, and can achieve a good signal emission effect.
The present patent is not limited to the above-mentioned best mode, any person can obtain other various forms of real-time monitoring method and device for the flight status of the aircraft under the teaching of the present patent, and all equivalent changes and modifications made according to the claims of the present application shall be covered by the present patent.
Claims (2)
1. A real-time aircraft flight state monitoring method is characterized in that: simulating an airplane in a flight state into a satellite so as to carry out short message communication based on Beidou RDSS satellites, and carrying out uploading of the flight state of the airplane through a Beidou RDSS single-type satellite communication link based on the Beidou RDSS satellite short message communication;
the ground receiving station receives the flight state information of the aircraft by adopting a Beidou communication front-end processor;
the Beidou RDSS single-shot satellite communication link comprises: a satellite communication baseband circuit, a satellite communication radio frequency modem circuit and a satellite communication power amplifier circuit; the satellite communication baseband circuit is connected with the aircraft controller terminal; the satellite communication power amplifier circuit is connected with an antenna;
the baseband chip of the satellite communication baseband circuit adopts an FB310 chip; the satellite communication radio frequency modem circuit adopts an RF2052 radio frequency chip; the satellite communication power amplifier circuit adopts an LDMOS power amplifier with the model of ABA 5412;
the PIN_1 PIN of the FB310 chip is used as an RDX_RDSS, is configured as a serial port communication interface of TTL level and is connected with an aircraft controller terminal;
in the satellite communication radio frequency modem circuit, RF2052 radio frequency chips are connected in sequence: an output bandpass filter LIF2253, an out-of-band rejection filter SF1616, and a boost stage power amplifier BGA217;
the satellite communication baseband circuit, the satellite communication radio frequency modem circuit and the satellite communication power amplifier circuit are powered by an aircraft onboard power supply.
2. The method for real-time monitoring of aircraft flight status according to claim 1, wherein: the antenna is arranged at the front windshield of the aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243209.XA CN110943774B (en) | 2019-12-06 | 2019-12-06 | Method and device for monitoring flight state of airplane in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243209.XA CN110943774B (en) | 2019-12-06 | 2019-12-06 | Method and device for monitoring flight state of airplane in real time |
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| Publication Number | Publication Date |
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| CN110943774A CN110943774A (en) | 2020-03-31 |
| CN110943774B true CN110943774B (en) | 2023-09-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682984A (en) * | 2015-03-19 | 2015-06-03 | 湖南澳德信息科技有限公司 | Signal transmission system |
| CN105338494A (en) * | 2015-11-26 | 2016-02-17 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Aviation emergency locator beacon device based on Beidou |
| CN107238850A (en) * | 2017-07-28 | 2017-10-10 | 彭春 | A kind of Big Dipper RDSS short message single-shot devices without receiving channel |
| CN107317620A (en) * | 2017-06-28 | 2017-11-03 | 北京华力创通科技股份有限公司 | Terminal and method that applied satellite antenna is communicated |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7035585B2 (en) * | 2000-12-11 | 2006-04-25 | Lockheed Martin Corporation | System and method for interfacing satellite communications with aircraft |
| US9686027B2 (en) * | 2015-05-20 | 2017-06-20 | Viasat, Inc. | Validation of a two-way satellite communication system without utilizing a satellite |
| CN210867695U (en) * | 2019-12-06 | 2020-06-26 | 国网思极神往位置服务（北京）有限公司 | Airborne Beidou RDSS single-transmitting satellite communication device |
-
2019
- 2019-12-06 CN CN201911243209.XA patent/CN110943774B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682984A (en) * | 2015-03-19 | 2015-06-03 | 湖南澳德信息科技有限公司 | Signal transmission system |
| CN105338494A (en) * | 2015-11-26 | 2016-02-17 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Aviation emergency locator beacon device based on Beidou |
| CN107317620A (en) * | 2017-06-28 | 2017-11-03 | 北京华力创通科技股份有限公司 | Terminal and method that applied satellite antenna is communicated |
| CN107238850A (en) * | 2017-07-28 | 2017-10-10 | 彭春 | A kind of Big Dipper RDSS short message single-shot devices without receiving channel |
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| CN110943774A (en) | 2020-03-31 |
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