CN212320892U - Airport positioning system based on distributed optical fiber sensor - Google Patents
Airport positioning system based on distributed optical fiber sensor Download PDFInfo
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- CN212320892U CN212320892U CN202020482924.0U CN202020482924U CN212320892U CN 212320892 U CN212320892 U CN 212320892U CN 202020482924 U CN202020482924 U CN 202020482924U CN 212320892 U CN212320892 U CN 212320892U
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Abstract
The utility model discloses an airport positioning system based on distributed optical fiber sensor, include: the sensing optical fibers are arranged on two sides of an airport runway or in a pilot light cable maintenance pipe well in the runway; the distributed optical fiber vibration measuring device is connected with the sensing optical fiber and is used for detecting the vibration information of the airport runway; and the airport dispatching system is connected with the distributed optical fiber vibration measuring device, receives the vibration information of the airport runway, takes the vibration information as the positioning information of the ground plane, displays the positioning information of the ground plane on the airport dispatching image and outputs a dispatching instruction. The utility model discloses an airport positioning system based on distributed optical fiber sensor surveys the vibration condition that shakes the device and detects airport runway through distributed optical fiber through the edge that sets up at airport runway with sensing optical fiber to detect the aircraft from falling to the ground position information up to the stationary, positioning accuracy is high, has avoided because the accident that the aircraft location is not accurate enough arouses.
Description
Technical Field
The utility model belongs to the technical field of the airport location, more specifically relates to an airport positioning system based on distributed optical fiber sensor.
Background
With the continued development of economy, airplanes are no longer a particularly luxury means of transportation, and in long distance travel, more and more people choose to travel on the airplane. This explosive growth has made airports increasingly busy. The scheduling of aircraft, particularly ground aircraft, is a big problem. In recent years, aircraft ground accidents due to unfavorable scheduling often occur.
The traditional airport ground scheduling mainly takes satellite positioning as a main part and radar assistance. However, the satellite positioning accuracy is relatively low in terms of altitude positioning, and since airplanes in airports include airplanes flying in the air and airplanes standing on the ground, problems are easily caused when the density of airplanes is high, particularly in the processes of taking off and landing. Meanwhile, airport radars usually have low discrimination on low-speed targets of automobiles including ground service and traffic automobiles, and have blind areas in monitoring. In addition, in the prior art, the runway needs to be completely closed during the processes of takeoff and landing of the airplane. Therefore, there is a need for a technique that can improve the positioning accuracy of airports and the takeoff density of airplanes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve the airport positioning system based on distributed optical fiber sensor of the positioning accuracy in airport and the density of taking off of aircraft.
In order to achieve the above object, the utility model provides an airport positioning system based on distributed optical fiber sensor, include: the sensing optical fibers are arranged on two sides of an airport runway or in a pilot light cable maintenance pipe well in the runway; the distributed optical fiber vibration measuring device is connected with the sensing optical fiber and is used for detecting vibration information of the airport runway; and the airport dispatching system is connected with the distributed optical fiber vibration measuring device, receives vibration information of the airport runway, takes the vibration information as positioning information of the ground plane, displays the positioning information of the ground plane on an airport dispatching image and outputs a dispatching instruction.
Optionally, when the sensing optical fiber is embedded at the edges of the two sides of the airport runway, the sensing optical fiber is adhered or fixed beside the pavement cement casting body at the two sides of the airport runway by using structural members.
Optionally, the sensing optical fiber is embedded in the edge of the two sides of the airport runway or in a cable maintenance pipe well of a navigation light in the runway.
Optionally, the sensing optical fiber is arranged to increase the sensitivity of vibration by increasing a small circle.
Optionally, the airport positioning system further comprises: the satellite positioning module is arranged on an airport vehicle, is connected with the airport dispatching system and is used for detecting the positioning information of the airport vehicle.
Optionally, the airport scheduling system receives the positioning information of the airport vehicle, displays the positioning information of the vehicle on an airport scheduling image, and outputs a scheduling instruction based on the airport scheduling image.
Optionally, a communication module and a display module are arranged on the airport vehicle, and the communication module is respectively connected with the airport dispatching system and the display module.
Optionally, the airport dispatching system sends the airport dispatching image to the communication module in real time, so that the display module of the airport vehicle can display the airport dispatching image.
Optionally, the airport positioning system further comprises: the air traffic control radar is connected with the airport dispatching system and used for detecting first positioning information of the aerial aircraft; the airport dispatching system receives first positioning information of the aerial airplanes and displays the first positioning information of the aerial airplanes on an airport dispatching image.
Optionally, the airport positioning system further comprises: the airport dispatching system receives second positioning information of the aerial airplane, compares the second positioning information of the aerial airplane with the first positioning information and displays the second positioning information on an airport dispatching image.
Optionally, the safety range of the airport runway is determined in real time according to the positioning information of the airplane and the model of the airplane.
The beneficial effects of the utility model reside in that: the utility model discloses an airport positioning system based on distributed optical fiber sensor is through setting up sensing optical fiber at the edge or the center of airport runway, survey the vibration condition that shakes the device and detect airport runway through distributed optical fiber, thereby it begins to stop all the way to and from the roll-off to the position information who takes off to detect the aircraft from falling to the ground, airport scheduling system shows the positioning information of ground aircraft on airport dispatch image, the staff of being convenient for dispatches, the accurate detection of airport aircraft dynamic position information has been realized through sensing optical fiber, positioning accuracy is high, staff's work efficiency has been improved, effectively avoided because the accident that the aircraft location is accurate enough arouses.
The safety range of the airport runway is determined in real time according to the positioning information of the airplane and the type of the airplane, the takeoff and landing dispatching density of the airplane is effectively increased according to the safety range, the utilization rate of the airport runway is improved, and the airport throughput is effectively improved.
The present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings. Wherein like reference numerals generally refer to like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a block diagram of a distributed fiber optic sensor based airport positioning system according to an embodiment of the present invention.
Fig. 2 shows a diagram of the position relationship between the optical fiber based on the distributed optical fiber sensor and the airport runway according to an embodiment of the present invention.
Fig. 3 shows a diagram of the buried position of an optical fiber based distributed optical fiber sensor according to an embodiment of the present invention.
Fig. 4 shows a ring arrangement of optical fibers based on a distributed optical fiber sensor according to an embodiment of the present invention.
Description of reference numerals:
1. a sensing optical fiber; 2. airport runways; 3. a distributed optical fiber seismic detector; 4. an airport dispatch system; 5. a satellite positioning module; 6. an air traffic control radar; 7. an aircraft satellite positioning system.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
According to the utility model discloses a airport positioning system based on distributed optical fiber sensor is provided, include: the sensing optical fibers are arranged on two sides of an airport runway or in a pilot light cable maintenance pipe well in the runway; the distributed optical fiber vibration measuring device is connected with the sensing optical fiber and is used for detecting the vibration information of the airport runway; and the airport dispatching system is connected with the distributed optical fiber vibration measuring device, receives the vibration information of the airport runway, takes the vibration information as the positioning information of the ground plane, displays the positioning information of the ground plane on the airport dispatching image and outputs a dispatching instruction.
Specifically, the optical fiber distributed sensing has the characteristics of large monitoring range, wide applicability, easiness in maintenance and low energy consumption as a novel sensing means. Which can provide effective monitoring over a wide range of vibration and temperature.
Accidents at airports usually occur between moving airplanes and commuting vehicles, and the airport can be effectively monitored and a real-time scheduling scheme can be formed by using optical fiber distributed sensing.
The conventional optical fiber distributed sensing can form stable monitoring within 20 kilometers, particularly for the natural objects such as airplanes, the length of the general small airplanes is close to 20 meters, and the length of the medium passenger aircraft which is most applied is close to 60 meters. The vibration generated in the process of advancing can generate enough disturbance on the optical fiber to form effective monitoring, the sensing optical fiber is arranged on two sides of an airport runway, the vibration information of the runway is obtained through the distributed optical fiber vibration measuring device, the vibration information is used as the positioning information of a ground plane and is continuously transmitted to the stable stopping position of the plane from the beginning of landing of the plane, when the vibration information is not obtained by the distributed optical fiber vibration measuring device, the plane is shown to be stable, the last vibration information is the positioning information of the stable stopping of the plane, the airport dispatching system displays the real-time positioning information of the plane on an airport dispatching diagram, and dispatching instructions are output according to the real-time airport dispatching diagram, so that workers can reasonably dispatch the airplane. The takeoff process of the airplane is similar, and the position information of the airplane from sliding to takeoff can be positioned. The utilization rate of the whole airport can be effectively improved by monitoring the runway by using the distributed optical fiber sensor.
The distributed optical fiber vibration measuring device can adopt an OTDR sensitive to vibration and an optical fiber interference detection system, comprises a Brillouin scattering OTDR (BOTDR), a phase sensitive OTDR (phi OTDR), a Polarization OTDR (POTDR), a Rayleigh scattering OTDR, various Mach-Zehnder interferometers and Michelson interferometer modes, and detects the vibration of the sensing optical fiber.
According to an exemplary embodiment, the airport positioning system based on the distributed optical fiber sensor is used for detecting the vibration condition of the airport runway by arranging the sensing optical fiber at the edge of the airport runway and using the distributed optical fiber vibration detection device, so that the position information of the airplane from landing to stable stopping is detected, the airport dispatching system displays the positioning information of the ground airplane on the airport dispatching image, the airport dispatching system is convenient for the workers to dispatch, the accurate detection of the position information of the airport airplane from landing to stable stopping is realized through the optical fiber, the positioning precision is high, the working efficiency of the workers is improved, and the accident caused by the insufficient precision of the airplane positioning is avoided.
As an alternative, the sensing optical fiber is adhered or fixed beside the pavement cement casting body on the two sides of the airport runway by adopting a structural member.
Specifically, the sensing optical fiber is adhered by glue or fixed on cement casting bodies on the road surfaces on the two sides of the runway by adopting structural parts, the runway is not damaged, the runway does not need to be rebuilt, the method is very convenient and fast, and the positioning information of the airplane is improved.
Alternatively, when the sensing optical fiber is embedded at the edges of both sides of the airport runway, the sensing optical fiber is embedded at the edges of both sides of the airport runway or in the cable maintenance pipe well of the airport navigation light.
Specifically, the optical fiber is embedded at the edge of the pavement cement casting body of the airport runway, and the optical fiber is close to the pavement cement casting body of the airport runway as much as possible, so that the detection precision is high.
When the navigation light at the center of the runway contains the cable maintenance pipe well, the sensing optical fiber can be buried in the cable maintenance pipe well of the airport navigation light. In particular, the newly-built airport runway can be directly arranged in the center of the runway, and a cable maintenance pipe well is reserved. In the newly-built runway, optical fibers can be arranged together with cables of the pilot lights, comprehensive cables are selected for arrangement, and the optical fiber distributed sensing is utilized to monitor the temperature of the cables at the same time so as to prevent short circuit.
Alternatively, the sensing fiber is arranged to increase the sensitivity of the vibration by adding a small loop.
Specifically, the sensing optical fiber is arranged in a surrounding manner to increase the sensitivity of vibration; the surrounding mode can be that a plurality of groups of optical fibers are arranged along the runway and are connected in series to form a large ring surrounding the runway, or a plurality of small rings with the diameter of 10 centimeters to 2 meters are made on one optical fiber, the distance between the small rings is 5 to 50 meters, and a series of small rings connected in series are formed at the edge of the runway in the mode of connecting the small rings in series.
Alternatively, the location of the fiber loop may be located only at the low-speed end of the runway takeoff, i.e., the end that is traveling slowly on land.
Alternatively, the buried depth of the optical fiber is 5 to 200 cm.
In one example, the embedding depth of the optical fiber is adjusted according to the signal acquisition condition of the vibration.
In one example, a multi-fiber burying scheme may be employed. Multiple optical fibers may be used in series (i.e., using the same distributed sensing and monitoring system), or in parallel (using different distributed sensing and monitoring systems).
In one example, the distributed sensing monitoring system may be based on fiber optic interference principles, may be based on stimulated brillouin, may be based on a Φ -OTDR or polarization OTDR scheme for measuring the vibration of an aircraft. And selecting the point with the highest vibration to calibrate the position of the airplane in the measuring process because the noise generated by the airplane is extremely high.
As an alternative, the airport positioning system further comprises: the satellite positioning module is arranged on the airport vehicle, connected with the airport dispatching system and used for detecting the positioning information of the airport vehicle.
Specifically, the satellite positioning module can adopt a GPS or a Beidou system, and the airport vehicle is provided with the satellite positioning module to acquire real-time position information of the airport vehicle and send the position information to the airport dispatching system.
Alternatively, the airport dispatching system receives the positioning information of the airport vehicles, displays the positioning information of the vehicles on the airport dispatching image, and outputs dispatching instructions based on the airport dispatching image.
Specifically, the airport dispatching system displays the positioning information of the airport vehicles on an airport dispatching diagram, so that the airport dispatching system is convenient for workers to reasonably dispatch.
As an alternative scheme, the airport vehicle is provided with a communication module and a display module, and the communication module is respectively connected with the airport dispatching system and the display module.
Alternatively, the airport dispatch system sends the airport dispatch image to the communication module in real time for display by the display module of the airport vehicle.
Specifically, the airport dispatching system sends the airport dispatching image to a communication module of the airport vehicle in real time, the communication module transmits the airport dispatching image to a display module, and the display module displays the airport dispatching image in real time, so that a driver of the airport vehicle can drive the vehicle according to actual conditions.
As an alternative, the airport positioning system further comprises: the air traffic control system comprises an air traffic control radar, wherein the air traffic control radar is connected with an airport dispatching system and used for detecting first positioning information of an aerial airplane.
Alternatively, the airport dispatch system receives first positioning information of the aerial aircraft and displays the first positioning information of the aerial aircraft on the airport dispatch image.
Specifically, the air traffic control radar acquires positioning information of the aerial airplane and sends the positioning information of the aerial airplane to the airport dispatching system, and the airport dispatching system displays the positioning information of the aerial airplane, so that three-dimensional images of ground positioning information and the aerial positioning information are realized, the aerial airplane and the ground airplane are distinguished in different colors, and dangerous invasion is marked by a specific flickering cursor, so that workers can work reasonably according to real-time information.
As an alternative, the airport positioning system further comprises: the airport dispatching system receives second positioning information of the aerial airplane, compares the second positioning information of the aerial airplane with the first positioning information and displays the second positioning information on an airport dispatching image.
Specifically, the airport dispatching system receives satellite positioning data of the aircraft at the same time, and the satellite positioning data are used as comparison reference of collected data, so that the accuracy of the position is guaranteed.
As an alternative, the safety range of the airport runway is determined in real time according to the positioning information of the airplane and the airplane model of the airplane.
Specifically, a safe area of the airport runway is determined according to the positioning information and the model of the airplane, a scheduling instruction is output according to the safe area, the scheduling of the airport is completed, the takeoff and landing scheduling density of the airplane is effectively increased, the utilization rate of the airport runway is improved, and the airport throughput is effectively improved. For example, for landing runways, safety is ensured in a way that the whole runway is closed; and for the takeoff runway, determining the safe distance of the tail part of the airplane according to the airplane type of the airplane, and calling a new airplane to prepare for running in the safe distance so as to increase the takeoff dispatching density of the airplane.
In one example, different levels of a forbidden zone, a dangerous zone, an open zone and the like are set on an airplane takeoff runway according to the airplane position, and the forbidden zone, the dangerous zone and the open zone are dynamically generated along with the change of the airplane position through the real-time measurement of the airplane ground position.
For example, the real-time reduction display center tower displays an airplane landing virtual simulation takeoff and landing dynamic graph in real time, updates airplane positioning information in real time, sets a safe area of an airport, sets a forbidden area, a dangerous area, an open area and the like according to the airplane position on an airplane takeoff runway, and increases the airplane takeoff scheduling density.
In one example, a graphical airport dispatch map is formed according to the one-to-one correspondence relationship between the positions of the ground runways and the parking spaces of the airport according to the embedded length of the optical fibers.
In one example, the resolution of distributed sensing is set above 10 meters for aircraft ground positioning.
In one example, the speed of the aircraft is estimated based on changes in the location of the aircraft, and a safety margin is displayed on the dispatch graph based on the speed. For taking off and landing, a sufficient space is reserved at the rear part of the airplane, 1000 meters is used as a safety distance, and damage caused by engine injection is prevented. The position information generated by the vibration sensing is displayed on the airport schedule map, and a safety zone, a danger zone, and a warning zone, an estimated speed and a traveling direction of the airplane, etc. are marked thereon.
In one example, the aircraft position is determined based on sensing fiber vibration, which suddenly disappears at the far end of the runway, determined as aircraft takeoff, and interfaced with the air traffic control radar data. And determining the airplane to be in a stop state when the vibration of the airplane at the non-takeoff end disappears.
Examples
Fig. 1 shows a block diagram of a distributed fiber optic sensor based airport positioning system according to an embodiment of the present invention. Fig. 2 shows a diagram of the position relationship between the optical fiber based on the distributed optical fiber sensor and the airport runway according to an embodiment of the present invention. Fig. 3 shows a diagram of the buried position of an optical fiber based distributed optical fiber sensor according to an embodiment of the present invention. Fig. 4 shows a ring arrangement of optical fibers based on a distributed optical fiber sensor according to an embodiment of the present invention.
Referring to fig. 1, 2, 3 and 4, the distributed optical fiber sensor-based airport positioning system includes: the sensing optical fiber 1 is arranged on two sides of an airport runway 2 or in a pilot light cable maintenance pipe well in the runway; the distributed optical fiber vibration measuring device 3 is connected with the sensing optical fiber 1 and used for detecting vibration information of the airport runway 2; and the airport dispatching system 4 is connected with the distributed optical fiber vibration measuring device 3, receives vibration information of the airport runway 2, takes the vibration information as positioning information of the ground plane, displays the positioning information of the ground plane on an airport dispatching image and outputs a dispatching instruction.
The sensing optical fiber 1 is adhered or fixed beside the pavement cement casting body on two sides of the airport runway 2 by structural members.
When the sensing optical fiber is embedded at the edges of two sides of the airport runway, the sensing optical fiber 1 is embedded at the edges of two sides of the airport runway 2 or in a cable maintenance pipe well of an airport navigation lamp.
Wherein, the sensing optical fiber 1 is arranged by increasing a small circle to increase the sensitivity of vibration.
Wherein, airport positioning system still includes: and the satellite positioning module 5 is arranged on the airport vehicle, is connected with the airport dispatching system 4 and is used for detecting the positioning information of the airport vehicle.
The airport dispatching system 4 receives the positioning information of the airport vehicles, displays the positioning information of the vehicles on the airport dispatching image, and outputs dispatching instructions based on the airport dispatching image.
The airport vehicle is provided with a communication module and a display module, and the communication module is respectively connected with the airport dispatching system 4 and the display module.
The airport dispatching system 4 sends the airport dispatching image to the communication module in real time so as to be displayed by the display module of the airport vehicle.
Wherein, airport positioning system still includes: the air traffic control radar 6 is connected with the airport dispatching system 4 and used for detecting first positioning information of the air plane; the airport dispatching system 4 receives the first positioning information of the aerial aircraft and displays the first positioning information of the aerial aircraft on the airport dispatching image.
Wherein, airport positioning system still includes: the airport dispatching system 4 receives second positioning information of the aerial airplane, compares the second positioning information of the aerial airplane with the first positioning information, and displays the second positioning information on the airport dispatching image.
Wherein, the safety range of the airport runway 2 is determined in real time according to the positioning information of the airplane and the model of the airplane.
The number of sensing fibers 1 is determined according to the requirement of the distributed fiber vibration measuring device 3, for example, 2 sensing fibers 1 are used in fig. 2 and 3.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (11)
1. An airport positioning system based on distributed fiber optic sensors, comprising:
the sensing optical fibers are arranged on two sides of an airport runway or in a pilot light cable maintenance pipe well in the runway;
the distributed optical fiber vibration measuring device is connected with the sensing optical fiber and is used for detecting vibration information of the airport runway;
and the airport dispatching system is connected with the distributed optical fiber vibration measuring device, receives vibration information of the airport runway, takes the vibration information as positioning information of the ground plane, displays the positioning information of the ground plane on an airport dispatching image and outputs a dispatching instruction.
2. The distributed fiber optic sensor-based airport positioning system of claim 1, wherein the sensing fiber is embedded in the airport runway edge at both sides or in the airport runway pilot light cable maintenance pipe well.
3. The distributed optical fiber sensor-based airport positioning system of claim 2, wherein when the sensing optical fiber is embedded at the edges of both sides of the airport runway, the sensing optical fiber is adhered or fixed by structural members beside the road cement casting body at both sides of the airport runway.
4. The distributed fiber optic sensor-based airport positioning system of claim 1, wherein the sensing fiber is configured to increase sensitivity to vibration by adding a small loop wrap.
5. The distributed fiber optic sensor-based airport positioning system of claim 1, further comprising: the satellite positioning module is arranged on an airport vehicle, is connected with the airport dispatching system and is used for detecting the positioning information of the airport vehicle.
6. The distributed optical fiber sensor-based airport positioning system of claim 5, wherein said airport dispatch system receives and displays the positioning information of said vehicles on an airport dispatch image, and outputs dispatch instructions based on the airport dispatch image.
7. The distributed optical fiber sensor-based airport positioning system of claim 5, wherein a communication module and a display module are arranged on the airport vehicle, and the communication module is respectively connected with the airport dispatching system and the display module.
8. The distributed fiber sensor-based airport positioning system of claim 7, wherein said airport dispatch system transmits said airport dispatch image to said communication module in real time for display by a display module of said airport vehicle.
9. The distributed fiber optic sensor-based airport positioning system of claim 1, further comprising: the air traffic control radar is connected with the airport dispatching system and used for detecting first positioning information of an aerial airplane; the airport dispatching system receives first positioning information of the aerial airplanes and displays the first positioning information of the aerial airplanes on an airport dispatching image.
10. The distributed fiber optic sensor-based airport positioning system of claim 9, further comprising: the airport dispatching system receives second positioning information of the aerial airplane, compares the second positioning information of the aerial airplane with the first positioning information and displays the second positioning information on an airport dispatching image.
11. The distributed optical fiber sensor-based airport positioning system of claim 1, wherein the safety range of the airport runway is determined in real time according to the positioning information of the airplane and the model of the airplane.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838743A (en) * | 2022-04-25 | 2022-08-02 | 武汉理工大学 | Grating array coding method and device for airport runway safety monitoring |
| CN115294805A (en) * | 2022-07-21 | 2022-11-04 | 中国民用航空飞行学院 | Airport scene aircraft conflict early warning system and method based on video images |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838743A (en) * | 2022-04-25 | 2022-08-02 | 武汉理工大学 | Grating array coding method and device for airport runway safety monitoring |
| CN115294805A (en) * | 2022-07-21 | 2022-11-04 | 中国民用航空飞行学院 | Airport scene aircraft conflict early warning system and method based on video images |
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