CN105842709A - Aerial monitoring system and method thereof - Google Patents

Abstract

The present invention provides an aviation monitoring system and method. The system includes a sky base station, a ground base station and a plurality of airborne stations, wherein the sky base station includes at least two satellites, and each satellite is used to receive broadcast messages; The airborne station is communicated with the ground base station, and the satellite is used to send positioning messages; the airborne station is used to receive positioning messages sent by at least two satellites, and determine the position information of the airborne station according to the positioning messages sent by at least two satellites, and Send the location information of the airborne station to the ground base station; the ground base station is used to receive the location information of the airborne station sent by multiple airborne stations respectively, generate a traffic situation map according to the location information of multiple airborne stations, and compare the traffic situation The map is sent to multiple airborne stations, and the aviation monitoring system provided by the invention improves the monitoring accuracy of the airborne stations.

Description

Aviation Surveillance System and Method

technical field

The invention relates to the technical field of air traffic safety, in particular to an aviation surveillance system and method.

Background technique

Aviation surveillance technology has always been a hot spot in the field of military and civilian aviation. Radar systems are usually used to monitor aircraft to improve the safety of aircraft operations. However, with the continuous improvement of aircraft performance, the following new features have emerged in the field of military and civilian aviation: flight unit Large quantity, high density, many types, fast speed, and strong randomness; monitoring requires a wide range, high precision, and good stability. These characteristics put forward higher requirements for aviation surveillance. The radar system is far from being able to meet the requirements of aviation surveillance due to insufficient airspace coverage and the difficulty of directly obtaining situational data such as the planned route and speed of the aircraft.

In the prior art, an aircraft with an Automatic Dependent Surveillance Broadcast (ADS-B) receiver periodically broadcasts information such as its own position and speed to the outside world, and the ground base station receives the broadcast message of the aircraft, and A traffic situation diagram is generated according to the broadcast message and returned to the aircraft, and the aircraft performs real-time monitoring and processing according to the traffic situation diagram.

However, in the prior art, the position information of the aircraft itself is obtained based on the Global Navigation Satellite System (Global Navigation Satellite System, referred to as GNSS). Due to errors in the position information of the aircraft acquired by GNSS, the ground base station monitors the aircraft. Accuracy is reduced.

Contents of the invention

The invention provides an aviation monitoring system and method, which are used to solve the problem of low accuracy of aircraft monitoring in the prior art.

The first aspect of the present invention provides an aerial surveillance system comprising:

a space base station, a ground base station, and a plurality of airborne stations, wherein the space base station includes at least two satellites, each of which is used to receive broadcast messages;

The sky base station is communicatively connected with the airborne station and the ground base station respectively;

The satellite is used to send a positioning message, wherein the positioning message includes position information, time information and identification information of the satellite;

The airborne station is configured to receive the positioning message sent by the at least two satellites, determine the position information of the airborne station according to the positioning message sent by the at least two satellites, and send the sending the location information of the carrier station to the base station;

The base station is used to receive the position information of the airborne stations respectively sent by the plurality of airborne stations, generate a traffic situation map according to the location information of the plurality of airborne stations, and send the traffic situation map to For the plurality of airborne stations, wherein the traffic situation map includes position information of the plurality of airborne stations.

The second aspect of the present invention provides an aerial surveillance method, and the method is applied to an aerial surveillance system. The aerial surveillance system includes: a sky base station, a ground base station, and a plurality of airborne stations, wherein the sky base station includes at least two satellite, the method comprising:

The airborne station receives positioning messages sent by at least two satellites, wherein the positioning messages include satellite position information, time information and identification information;

The airborne station determines the location information of the airborne station according to the positioning message sent by the at least two satellites;

The airborne station sends the location information of the airborne station to the ground base station, so that the ground base station can generate a traffic situation map according to the location information of a plurality of the airborne stations, and send the traffic situation map to the A plurality of airborne stations, wherein the traffic situation map includes position information of the plurality of airborne stations.

The aviation monitoring system and method provided by the present invention, the system includes a space base station, a ground base station and a plurality of airborne stations, wherein the space base station includes at least two satellites, and each satellite is used to receive broadcast messages; The carrier station and the ground base station are connected by communication, so that the satellite can periodically send positioning messages, wherein the positioning message includes satellite position information, time information and identification information, and the airborne station receives the positioning messages sent by at least two satellites, and according to at least The positioning message sent by the two satellites determines the location information of the airborne station, improves the accuracy of the location information of the airborne station, and sends the location information of the airborne station to the ground base station, so that the ground base station can The location information of airborne stations sent by each station generates a traffic situation map, and the traffic situation map is sent to multiple airborne stations, wherein the traffic situation map includes the location information of multiple airborne stations, thereby improving the traffic situation map. The accuracy further improves the monitoring accuracy of the ground base station to the airborne station.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the schematic structural diagram of the first embodiment of the aerial surveillance system provided by the present invention;

Fig. 2 is the flowchart of the first embodiment of the aerial surveillance method provided by the present invention;

Fig. 3 is the flowchart of the second embodiment of the aerial surveillance method provided by the present invention;

Fig. 4 is a flow chart of Embodiment 3 of the aerial surveillance method provided by the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of Embodiment 1 of the aerial surveillance system provided by the present invention. As shown in Fig. 1, the aerial surveillance system includes: a sky base station 1, a ground base station 3 and a plurality of airborne stations, wherein the sky base station 1 includes at least Two satellites, each for receiving broadcast messages.

The space base 1 communicates with the airborne station and the ground base station 3 respectively.

In this embodiment, as an example, as shown in FIG. 1, the system includes M airborne stations and N satellites, which are respectively the first airborne station 21, the second airborne station 22, and the third airborne station. 23,..., the Mth airborne station 24, the first satellite 11, the second satellite 12, the third satellite 13,..., the Nth satellite 14, wherein M and N are positive integers greater than or equal to 2. Furthermore, usually the airborne station is installed at the end of the aircraft.

It should be noted that the broadcast messages received by satellites include broadcast messages sent by other satellites and broadcast messages sent by airborne stations, for example, the first satellite 11 can receive the second satellite 12, the first airborne station 21 and the second Broadcast message sent by onboard station 22.

Wherein, the satellite is used to send a positioning message, wherein the positioning message includes position information, time information and identification information of the satellite.

It should be noted that each satellite uniquely corresponds to one identification information.

In this embodiment, the first satellite 11, the second satellite 12, the third satellite 13,..., the Nth satellite 14 respectively broadcast their own positioning messages at a period T1, wherein T1 is a positive integer, for example, the first satellite 11 can receive the positioning message broadcast by the second satellite 12, but cannot receive the positioning message broadcast by other satellites. The second satellite 12 can receive the positioning messages of the first satellite 11 and the third satellite 13 at the same time, but cannot receive the positioning messages broadcast by other satellites, so that after exchanging broadcast information between the satellites, the first satellite 11 can obtain its own The positioning message, the positioning message of the second satellite 12 and the positioning message of the third satellite 13, and send the positioning message of itself, the positioning message of the second satellite 12 and the positioning message of the third satellite 13 to the airborne station, that is, the first satellite The positioning message sent by 11 includes its own positioning message, the positioning message of the second satellite 12, and the positioning message of the third satellite.

The airborne station is used to receive positioning messages sent by at least two satellites, determine the location information of the airborne station according to the positioning messages sent by at least two satellites, and send the location information of the airborne station to the ground base station 3 .

In this embodiment, specifically, the airborne station receives positioning messages sent by at least two satellites through the L frequency band at a period T2, and sends the location information of the airborne station to the ground base station 3 in real time through the L frequency band, wherein T2 is It is a positive integer, and T2 is greater than or equal to T1, and the L frequency band is from 1GHz to 2GHz. In this way, the frequency at which the airborne station receives positioning messages sent by at least two satellites can be controlled by adjusting the value of T2.

In addition, the airborne station can broadcast the location information of the airborne station to the sky base station 1, and the satellite in the sky base station 1 that receives the location information of the airborne station will forward the location information of the airborne station to the ground base station 3, or , the airborne station can also directly send its own location information to the ground base station 3, but it is not limited thereto.

The ground base station 3 is used to receive the position information of the airborne stations respectively sent by the multiple airborne stations, generate a traffic situation map according to the location information of the multiple airborne stations, and send the traffic situation map to the multiple airborne stations, wherein, The traffic situation map includes location information for multiple airborne stations.

The system provided in this embodiment includes a space base station, a ground base station, and a plurality of airborne stations, wherein the space base station includes at least two satellites, and each satellite is used to receive broadcast messages; the space base station is connected with the airborne station and the ground station respectively The base stations are connected by communication, so that the satellites can periodically send positioning messages, wherein the positioning messages include satellite position information, time information and identification information, and the airborne station receives the positioning messages sent by at least two satellites and sends them according to at least two The positioning message of the airborne station determines the position information of the airborne station, improves the accuracy of the position information of the airborne station, and sends the position information of the airborne station to the ground base station, so that the ground base station receives the information sent by multiple airborne stations respectively. The location information of the airborne station generates a traffic situation map, and sends the traffic situation map to multiple airborne stations, wherein the traffic situation map includes the location information of multiple airborne stations, thereby improving the accuracy of the traffic situation map, The monitoring accuracy of the ground base station to the airborne station is further improved.

Further, on the basis of the above-mentioned embodiments, in the second embodiment of the aviation surveillance system provided by the present invention, the satellite is equipped with an automatic dependent surveillance-broadcast ADS-B receiver, and the satellite sends a positioning message through the ADS-B receiver, so that , satellites can send positioning messages by broadcasting.

In this example, specifically, the positioning message carries an ADS-B message, where the ADS-B message includes satellite position information, time information, and identification information.

Further, on the basis of the above-mentioned embodiments, in the third embodiment of the aviation surveillance system provided by the present invention, the airborne station performs filtering and fusion processing on the positioning messages sent by at least two satellites to obtain the position information of the airborne station, In this way, the accuracy of the position information of the on-board stations is improved.

In this embodiment, performing filtering and fusion processing on positioning messages sent by at least two satellites is specifically that the airborne station adopts a Kalman filter system, and according to the information sent by at least two satellites received by the airborne station at the k-1th moment The positioning message acquires the location information of the airborne station at the kth moment, where k is a positive integer greater than or equal to 1.

In addition, the airborne station is also used to broadcast flight parameters and business messages of the airborne station.

Correspondingly, the satellite that receives the location information, flight parameters and service information of the airborne station in the sky base station forwards the location information, flight parameters and service information of the airborne station to the ground base station, so that the ground base station can The location information, flight parameters and business messages sent by the station generate a traffic situation map to realize the comprehensive monitoring of the airborne station.

It should be noted that the flight parameters include parameters such as the flight speed and heading of the aircraft where the airborne station is located, and the service messages may include voice service messages and data service messages.

Fig. 2 is a flow chart of the first embodiment of the aerial surveillance method provided by the present invention. As shown in Fig. 2, the method is applied to the aerial surveillance system, and the aerial surveillance system includes: a space base station, a ground base station and a plurality of airborne stations, wherein , the space base station includes at least two satellites, and the method includes:

Step 101, the airborne station receives positioning messages sent by at least two satellites, wherein the positioning messages include position information, time information and identification information of the satellites.

Step 102, the airborne station determines the location information of the airborne station according to the positioning messages sent by at least two satellites.

Step 103, the airborne station sends the location information of the airborne station to the ground base station, so that the ground base station generates a traffic situation map according to the location information of a plurality of airborne stations, and sends the traffic situation map to a plurality of airborne stations, Wherein, the traffic situation map includes position information of multiple airborne stations.

In this embodiment, the airborne station receives positioning messages sent by at least two satellites, and determines the location information of the airborne station according to the positioning messages sent by at least two satellites, thereby improving the accuracy of the location information of the airborne station, and The location information of the airborne station is sent to the ground base station for the ground base station to generate a traffic situation map based on the location information of multiple airborne stations, and send the traffic situation map to multiple airborne stations, thereby improving the accuracy of the traffic situation map. The accuracy further improves the monitoring accuracy of the ground base station to the airborne station.

Further, the airborne station receives positioning messages sent by at least two satellites, specifically:

The airborne station receives the positioning message sent by the automatic dependent surveillance-broadcast ADS-B receiver carried by at least two satellites, so that the satellite can send the positioning message by broadcasting.

Fig. 3 is the flowchart of the second embodiment of the aerial surveillance method provided by the present invention, as shown in Fig. 3, the method includes:

Step 201, the airborne station receives positioning messages sent by at least two satellites, wherein the positioning messages include position information, time information and identification information of the satellites.

Step 202, the airborne station performs filtering and fusion processing on the positioning messages sent by at least two satellites, to obtain the location information of the airborne station.

Step 203, the airborne station sends the location information of the airborne station to the ground base station, so that the ground base station generates a traffic situation map according to the location information of a plurality of airborne stations, and sends the traffic situation map to a plurality of airborne stations, Wherein, the traffic situation map includes position information of multiple airborne stations.

In this embodiment, the airborne station obtains the location information of the airborne station by performing filtering and fusion processing on the positioning messages sent by at least two satellites, thereby improving the accuracy of the location information of the airborne station.

Fig. 4 is the flowchart of the third embodiment of the aerial surveillance method provided by the present invention, as shown in Fig. 4, the method includes:

Step 301, the airborne station receives positioning messages sent by at least two satellites, wherein the positioning messages include position information, time information and identification information of the satellites.

Step 302, the airborne station determines the location information of the airborne station according to the positioning messages sent by at least two satellites.

Step 303, the airborne station sends the location information, flight parameters and business messages of the airborne station to the ground base station, so that the ground base station can generate a traffic situation map according to the location information, flight parameters and business messages of multiple airborne stations, and The traffic situation map is sent to multiple airborne stations, wherein the traffic situation map includes position information, flight parameters and service messages of the multiple airborne stations.

Specifically, the airborne station broadcasts the location information, flight parameters and business information of the airborne station to the space base station, so that the satellites in the space base station that receive the position information, flight parameters and business information of the airborne station will send the information of the airborne station Position information, flight parameters and business messages are sent to the ground base station.

In this embodiment, the airborne station sends the location information, flight parameters and service messages of the airborne station to the ground base station, so that the ground base station can generate the traffic situation according to the location information, flight parameters and service messages of multiple airborne stations map, and send the traffic situation map to multiple airborne stations, wherein the traffic situation map includes the location information, flight parameters and business information of multiple airborne stations, so that comprehensive monitoring of the airborne stations can be realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. an aerial surveillance systems, it is characterised in that including: base station, sky, base station and multiple airborne Standing, wherein, base station, described sky includes that at least two satellites, every described satellite are used for receiving broadcast；

Base station, described sky communicates to connect with described airborne station and base station, described ground respectively；

Described satellite is used for sending localization message, and wherein, described localization message includes the position of described satellite Information, temporal information and identification information；

The described localization message that described airborne station at least two satellites described in receive send, and according to institute The described localization message stating at least two satellites transmissions determines the positional information of described airborne station, and by described The positional information of airborne station is sent to base station, described ground；

Base station, described ground is for receiving the position letter of the described airborne station that the plurality of airborne station sends respectively Breath, generates traffic situation figure according to the positional information of multiple described airborne stations, and by described traffic situation figure Being sent to the plurality of airborne station, wherein, described traffic situation figure includes the position of the plurality of airborne station Confidence ceases.

System the most according to claim 1, it is characterised in that described Seeds of First Post-flight has broadcast type certainly Moving dependent surveillance ADS-B receiver, described in the described passing of satelline, ADS-B receiver sends localization message.

System the most according to claim 2, it is characterised in that described airborne station according to described at least The described localization message of two satellite transmissions determines the positional information of airborne station, including:

Described airborne station, the described localization message sending described at least two satellites is filtered at fusion Reason, obtains the positional information of described airborne station.

System the most according to claim 1, it is characterised in that described airborne station, for by described The positional information of airborne station is sent to base station, ground, particularly as follows:

The broadcast of position information of described airborne station is given base station, described sky by described airborne station, by base station, described sky In receive described airborne station the satellite of positional information the positional information of described airborne station is transmitted to described Base station, ground.

System the most according to claim 4, it is characterised in that described airborne station, is additionally operable to broadcast The flight parameter of described airborne station and service message；

Base station, described sky receives the flight parameter of described airborne station and the satellite of service message, by described The flight parameter of airborne station and service message are transmitted to base station, described ground.

6. an aviation monitors method, it is characterised in that described method is applied to aerial surveillance systems, institute State aerial surveillance systems to include: base station, sky, base station and multiple airborne station, wherein, base station, described sky wrap Including at least two satellites, described method includes:

Airborne station receives the localization message that at least two satellites send, and wherein, localization message includes satellite Positional information, temporal information and identification information；

Airborne station determines the position of described airborne station according to the described localization message that described at least two satellites send Confidence ceases；

The positional information of described airborne station is sent to base station, ground by airborne station, for base station, described ground according to many The positional information of individual described airborne station generates traffic situation figure, and is sent to by described traffic situation figure described Multiple airborne stations, wherein, described traffic situation figure includes the positional information of the plurality of airborne station.

Method the most according to claim 6, it is characterised in that described airborne station receives at least two The localization message that satellite sends, particularly as follows:

Described airborne station receives the Automatic dependent surveillance broadcast ADS-B of at least two Seeds of First Post-flights and receives The localization message that machine sends.

Method the most according to claim 7, it is characterised in that described airborne station according to described at least The described localization message of two satellite transmissions determines the positional information of described airborne station, including:

The described localization message that described at least two satellites are sent by described airborne station is filtered at fusion Reason, obtains the positional information of described airborne station.

Method the most according to claim 6, it is characterised in that described airborne station is by described airborne station Positional information be sent to ground base station, particularly as follows:

The broadcast of position information of described airborne station is given base station, described sky by described airborne station, for described space-based The positional information of described airborne station is transmitted to institute by the satellite of the positional information receiving described airborne station in standing State base station, ground.

Method the most according to claim 9, it is characterised in that also include:

Described airborne station broadcasts flight parameter and the service message of described airborne station, in base station, described sky Receive the flight parameter of described airborne station and the satellite of service message by the flight parameter of described airborne station and Service message is transmitted to base station, described ground.