CN106127201A - A kind of unmanned plane landing method of view-based access control model positioning landing end - Google Patents

A kind of unmanned plane landing method of view-based access control model positioning landing end Download PDF

Info

Publication number
CN106127201A
CN106127201A CN201610454292.5A CN201610454292A CN106127201A CN 106127201 A CN106127201 A CN 106127201A CN 201610454292 A CN201610454292 A CN 201610454292A CN 106127201 A CN106127201 A CN 106127201A
Authority
CN
China
Prior art keywords
marker
unmanned plane
airport
aircraft gate
landing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610454292.5A
Other languages
Chinese (zh)
Other versions
CN106127201B (en
Inventor
布树辉
杨君
赵勇
张臻炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Yinnuo Aviation Technology Co Ltd
Original Assignee
Xi'an Yinnuo Aviation Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Yinnuo Aviation Technology Co Ltd filed Critical Xi'an Yinnuo Aviation Technology Co Ltd
Priority to CN201610454292.5A priority Critical patent/CN106127201B/en
Publication of CN106127201A publication Critical patent/CN106127201A/en
Application granted granted Critical
Publication of CN106127201B publication Critical patent/CN106127201B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/20Image preprocessing
    • G06V10/24Aligning, centring, orientation detection or correction of the image
    • G06V10/245Aligning, centring, orientation detection or correction of the image by locating a pattern; Special marks for positioning
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/10Simultaneous control of position or course in three dimensions
    • G05D1/101Simultaneous control of position or course in three dimensions specially adapted for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

The invention discloses the unmanned plane landing method of a kind of view-based access control model positioning landing end; the unmanned plane airport used in the method is made up of multiple aircraft gate Marker; unmanned plane obtains the Marker in visual range by vision module and verifies the ID of each Marker in visual range, thus estimates the accurate land of self-position.The unmanned plane airport that the present invention provides can be that multiple different unmanned plane provides landing service, also unit stopping platform can be provided at roof, all kinds of small-sized platform of balcony lamp, unified framework can be achieved at low cost full autonomous flight landing in whole unmanned plane is dispatched, and has good promotion prospect.

Description

A kind of unmanned plane landing method of view-based access control model positioning landing end
Technical field
The present invention relates to unmanned aerial vehicle (UAV) control technical field, be specifically related to the unmanned plane of a kind of view-based access control model positioning landing end Landing method.
Background technology
In recent years, MAV due to the features such as little, lightweight, the good concealment of its volume be widely used in shooting, Monitor, investigate, follow the trail of, the every field such as mapping, and open the epoch of unmanned air vehicle technique blast.And it is micro-during dynamic tracing shooting Chain-wales (such as vehicle top) reclaims shooting equipment, express delivery industry fixed point delivers the new demand that the civilian unmanned planes such as article use, all The automatic landing technology of MAV is proposed new challenge.
International consumer electronics product exhibition (International Consumer Electronics in 2016 Show, is called for short CES) on, the novel unmanned plane of the exhibitions of well-known unmanned plane company such as big boundary, zero degree, hundred million boats is all automatic by unmanned plane Landing as required skill, the novel unmanned plane Disco that wherein Parrot company releases proposes the super simplification nothing of " key is gone home " It is countless that man-machine automatic landing operation inhales eyeball especially.
Owing to the accuracy class of GPS still cannot meet the requirement of unmanned plane high accuracy landing, had significant by design The trend that the landing place of feature reaches precision approach is more and more obvious.Increase income and fly to control PixHawk and illustrate a kind of based on red Outer landing mark, it is other accurately that unmanned plane can carry out Centimeter Level by lift-launch corresponding infrared photography landing module booting self Landing.Amazon also show its scheme utilizing significant landing plate to deliver goods to the customers to user's unmanned plane.
But more than landing place is the most only an airplane design, it is impossible to land multi-aircraft, and unmanned plane is only simultaneously Have when arriving in scope the least above ground, landing field and self could be carried out relative localization.
Summary of the invention
For above-mentioned problems of the prior art, it is an object of the invention to, it is provided that a kind of view-based access control model location fall Fall the unmanned plane landing method of end, utilizes the Airborne Camera on unmanned plane to process the Airport Images photographed, intends adopting With identification thing multiple, that identify with ID at many levels, establish one and can accommodate the large-scale of hundreds and thousands of unmanned plane landing demand Unmanned plane airport, this method cost is extremely low simultaneously, it is adaptable to unmanned planes single, multiple landing uses.
In order to realize above-mentioned task, the present invention by the following technical solutions:
The unmanned plane landing method of a kind of view-based access control model positioning landing end, comprises the following steps:
Step one, sets up unmanned plane airport
Step S10, arranges aircraft gate Marker, and the design rule of aircraft gate Marker is:
Aircraft gate Marker is all the square structure being made up of N*N grid spaces;At each aircraft gate Marker In, in the grid spaces of outmost turns, at least 2/3 is filled to black, and remaining grid spaces is black or white;
Step S11, arranges nested Marker, the design of nested Marker and aircraft gate Marker in the Marker of aircraft gate Rule is identical, and except for the difference that the specification of nested Marker is little compared with Marker, and nested Marker has plurality of specifications, is distributed in and stops The inside of seat in the plane Marker;
Step S12, sets up unmanned plane airport, and airport is the square structure being made up of N*N grid spaces, and airport is Grid spaces, outer ring is black, and remaining region is white;It is distributed in order or disorderly in the white portion on airport Multiple described aircraft gate Marker, the most overlapping between the Marker of aircraft gate;
Step 2, the descent of unmanned plane
Step S20, unmanned plane receive landing instruction, landing instruction comprise all unmanned plane airports GPS position information, The positional information of aircraft gate Marker, the unmanned plane airport ID of the required landing of unmanned plane, unmanned plane in each unmanned plane airport The ID of the aircraft gate Marker of required landing;
Step S21, utilizes the GPS position information on unmanned plane airport to be guided above airport by unmanned plane, treats that unmanned plane arrives After reaching above airport, gather the image on airport with fixing speed limit trailing edge, and each two field picture collected is walked The process of rapid S210 to S213:
Step S210, rim detection and contours extract
The image of collection is converted into gray-scale map, utilizes Canny operator to obtain the marginal distribution figure of binaryzation, utilize corruption Erosion, expansion algorithm carry out noise and filter, and then extract the profile information of image, and profile information is all aircraft gates in comprising airport Marker and the profile on airport;
Step S211, screens unmanned plane airport
Two categories below profile is filtered in profile information:
The first kind: area is less than the profile of 2/3 unmanned plane airport area;
Equations of The Second Kind: the profile of internal loss of fecundity profile;
After filtering above two class profiles, choose the outside unmanned plane airport for convex quadrangle as candidate airport;
Step S212, is mapped to candidate airport in square region, utilizes k-means algorithm the pixel on candidate airport to be divided For black and white two class, thus obtain the binary image on candidate airport;Utilize binary image to encode, obtain a N*N's Two values matrix, for two values matrix, first determines whether whether the outmost turns of two values matrix is complete zero, if non-full zero, abandons;So After two values matrix is converted to unsigned int except the binary coding of outmost turns;
Step S213, carries out code value calculating according to the unsigned int on each candidate airport, obtains each candidate's machine ID, landing instruction ID and the unmanned plane on candidate airport received needs the unmanned plane airport ID landed to carry out Join, select the ID candidate airport that the match is successful as treating landing station;
Step S22, after landing station finds, the image stopping collecting unmanned plane carries out step S210's to S213 Processing, now unmanned plane during flying is to the top treating landing station;
Step S23, unmanned plane arrives after above landing station, treats landing station with fixing speed limit trailing edge collection Image, and each two field picture collected is carried out following process:
Step S230, is converted into gray-scale map by the image of collection, utilizes Canny operator to obtain the marginal distribution of binaryzation Figure, utilizes burn into expansion algorithm to carry out noise and filters, then extract the profile information of image;
Step S231, screens aircraft gate Marker
Two categories below profile is filtered in profile information:
The first kind: the area profile less than 2/3 aircraft gate Marker;
Equations of The Second Kind: the profile of internal loss of fecundity profile;
After filtering above two class profiles, choose the outside aircraft gate Marker for convex quadrangle as candidate aircraft gate Marker;
Step S232, is mapped to candidate aircraft gate Marker in square region, utilizes k-means algorithm candidate to be shut down The pixel of position Marker is divided into black and white two class, thus obtains the binary image of candidate aircraft gate Marker;Utilize binary picture As encoding, obtain the two values matrix of a N*N, for two values matrix, first determine whether that whether the outmost turns of two values matrix is Complete zero, if non-full zero, abandon;Then two values matrix is converted to unsigned int except the binary coding of outmost turns;
Step S233, carries out code value calculating according to the unsigned int of each candidate aircraft gate Marker, obtains each The ID of individual candidate aircraft gate Marker, needs fall in landing ID and the unmanned plane of candidate aircraft gate Marker received instruction The ID of the candidate aircraft gate Marker fallen mates, and selects the ID Marker aircraft gate to be landed, candidate aircraft gate that the match is successful Marker;
Step S24, unmanned plane flies to aircraft gate to be landed according to the positional information of aircraft gate Marker to be landed Marker lands behind top position.
Further, satellite Marker, satellite Marker and aircraft gate it are additionally provided with in described aircraft gate Marker The design rule of Marker is identical, and except for the difference that the area of satellite Marker is less than the grid spaces area of nesting Marker 1/3.
The present invention compared with prior art has a techniques below feature:
1. the landing method that the present invention provides, unmanned plane determines shutdown orientation according to ID value in descent, and keeps Constant, do not affected by extraneous factor.
2. the unmanned plane airport that the present invention provides, owing to each unmanned plane can utilize all marks that whole airport provides Knowledge information, to self poisoning, therefore just can give self poisoning in several meters even distance of hundreds of meters, the least yardstick Marker can be that unmanned plane landing end provides millimetre-sized positioning precision.Rely on the precise location information of whole process, unmanned Machine can drop to target aircraft gate efficiently, safely, accurately;
3. the unmanned plane airport that the present invention provides can be that multiple different unmanned plane provides landing service, and unified framework can It is achieved at low cost full autonomous flight landing in whole unmanned plane is dispatched, there is good promotion prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of aircraft gate Marker;
Fig. 2 is the flow chart of unmanned plane descent;
Fig. 3 is the structural representation on a unmanned plane airport;
Detailed description of the invention
Deferring to technique scheme, as shown in drawings, the present invention provides the unmanned of a kind of view-based access control model positioning landing end Machine landing method, comprises the following steps:
Step one: set up unmanned plane airport
The unmanned plane airport of the present invention is made up of, often multiple Marker (may be used without other and have significant terrestrial reference) Individual aircraft gate Marker has the feature having distinctness, and can carry out binary coding by light and shade striped, is encoded by deciphering Its id information can be obtained;Unmanned plane obtains the aircraft gate Marker in the visual field by onboard image equipment, is compiled by binary system Yardage is calculated the ID of each aircraft gate Marker and verifies, by being fitted calculating with the three-dimensional point under corresponding global coordinate system Pose, thus estimate self-position well, to carry out precision approach.
Aircraft gate Marker is all the square structure being made up of N*N (N is integer) individual identical grid spaces;? In the Marker of each aircraft gate, in the grid spaces of outmost turns, at least 2/3 is filled to black (or being stuffed entirely with as black), So grid spaces of guarantee outmost turns is black, and this is the important symbol of aircraft gate Marker;Remaining grid spaces For black or white, this is to ensure that the feature of nesting;Aircraft gate Marker mentioned in this programme and unmanned plane Airport is in the middle of a plane, and all only has black and white, in order to image procossing.Whole airport nested multiple solely Vertical aircraft gate, each aircraft gate Marker may be incorporated for guiding a frame unmanned plane to stop thereon, and aircraft gate Marker is Square structure, is considered as being combined into by each grid spaces of N*N.
Except aircraft gate Marker, it is additionally provided with nested Marker therein, for end auxiliary landing, it is ensured that landing Precision and stability;
Step S11, arranges nested Marker, the design of nested Marker and aircraft gate Marker in the Marker of aircraft gate Rule is identical, and rule here is identical refers to that nested Marker is also the square structure being made up of N*N grid spaces, and 2/3 black is the most at least filled in the grid spaces of its outer ring, and remaining grid spaces is black or white;Except for the difference that nested The specification of Marker is little compared with Marker, and the ID value of each nested Marker and corresponding aircraft gate Marker differs; Nested Marker has plurality of specifications, in the case of the coding rule ensureing original aircraft gate Marker is immovable, is distributed in and stops The inside of seat in the plane Marker;Here plurality of specifications refers to that nested Marker's is in different size, i.e. the length of side is different, and often Individual nested black Marker within, white portion distribution are also different, and the ID of the most each nesting Marker is different. Nested Marker is distributed in the Marker of aircraft gate.
Preferably, satellite Marker, satellite Marker and aircraft gate can also be set inside the Marker of aircraft gate The design rule of Marker is identical (scaled down version of aircraft gate Marker can also be regarded as), the except for the difference that face of satellite Marker The 1/3 of the long-pending grid spaces area less than nesting Marker, in order to avoid having influence on nested Marker to play its effect.Its master Act on is to avoid unmanned plane to be affected deviation aircraft gate by pneumatic in descent;Satellite Marker is preferably distributed in aircraft gate The inner ring position of Marker.When satellite Marker is distributed in the Marker of aircraft gate, satellite Marker can partly or entirely with The outmost turns (black circle) of aircraft gate Marker is overlapping, as shown in Figure 1;Black on nested Marker and aircraft gate Marker When there is overlap in region, the edge of nested Marker lap leaves white space, in order to calculates and distinguishes.
Sum it up, aircraft gate Marker, nested Marker, satellite Marker are the same is all by the grid spaces structure of N*N Becoming, and outmost turns is or at least 2/3 fills black, difference is that their ID, area are different, its Satellite Marker Area minimum, the area of nested Marker takes second place.
Step S12, sets up unmanned plane airport, as it is shown on figure 3, airport is the square knot being made up of N*N grid spaces Structure, the outmost turns grid spaces on airport is black, and remaining region is white;Orderly or nothing in the white portion on airport Multiple described aircraft gate Marker is distributed to sequence, and (aircraft gate Marker and unmanned plane airport must be configured into two can identified Dimension code mark thing so that unmanned plane can be in whole place inner position), the most overlapping between the Marker of aircraft gate, but aircraft gate Marker can part the most overlapping with the black box region of airport outmost turns, and the edge of lap leave white space so that In differentiation.Different aircraft gate Marker in airport towards can be identical, it is also possible to different, by actual demand design distribution. The distribution of aircraft gate Marker directly affects the ID value on airport, and the ID on airport is the important symbol identifying airport.
Unmanned plane airport can be spaced apart multiple in same bulk zone, for parking of extensive unmanned plane.
Step 2: the descent of unmanned plane
Step S20, unmanned plane receives the landing instruction of ground control centre (or controlling equipment), and landing instruction comprises institute Have aircraft gate Marker in the GPS position information on unmanned plane airport, each unmanned plane airport positional information (ID value, relative to The coordinate etc. on unmanned plane airport), the unmanned plane airport ID of the required landing of unmanned plane, the aircraft gate of the required landing of unmanned plane The ID of Marker;
This programme utilizes GPS secondarily position, because GPS is affected relatively big by weather, residing region, lead The precision causing GPS in varied situations is variant, it is impossible to meet the demand of unmanned plane precision approach.To this end, it is the most sharp in this programme With GPS, unmanned plane is carried out the guiding of approximate location, when the vision facilities of unmanned plane can shoot and resolve the unmanned plane on ground After Airport Images, unmanned plane precision approach can be guided by Quick Response Code mark.
Step S21, utilizes the GPS position information on unmanned plane airport by (concrete height root above unmanned plane guiding to airport Depending on the internal reference of camera and airport dimensions, the generally size on 15 times of airports), after unmanned plane arrives at the airport top, with solid Fixed speed limit trailing edge gathers the image on airport, and each two field picture collected carries out the place of step S210 to S213 Reason:
Step S210, rim detection and contours extract
The image of collection is converted into gray-scale map, utilizes Canny operator to obtain the marginal distribution figure of binaryzation, utilize corruption Erosion, expansion algorithm carry out noise and filter, and then extract the profile information of image, and profile information is all aircraft gates in comprising airport Marker and the profile on airport;
Step S211, screens unmanned plane airport
Two categories below profile is filtered in profile information:
The first kind: area is less than the profile of 2/3 unmanned plane airport area, because this profile size does not meets unmanned plane machine The area of field, may be other objects of ground, need to filter;(unmanned plane is obtained its place by self-contained ultrasonic equipment Highly, according to this height and the area of image that photographs, calculate corresponding three-dimensional of image according to camera model Area)
Equations of The Second Kind: the profile of internal loss of fecundity profile;Here the profile being aircraft gate Marker from profile, due to one Necessarily comprise aircraft gate Marker inside correct unmanned plane airport, therefore when some contoured interior does not has sub-profile, say This profile bright is not airport.
After filtering above two class profiles, choose the outside unmanned plane airport (profile) for convex quadrangle as candidate airport; Owing in a panel region, unmanned plane airport may have multiple, the candidate airport therefore screened has been likely to multiple;
Step S212, is mapped to candidate airport in square region that (image that Airborne Camera photographs may produce abnormal Becoming, mapping is to reduce the shape of image of its original), utilize k-means algorithm that the pixel on candidate airport is divided into black and white Two classes (when the black area of each square is more than the 2/3 of this square area, are then divided into black, white is also such), from And obtain the binary image on candidate airport;Utilize binary image to encode, obtain the two values matrix of a N*N, for Two values matrix, first determines whether whether the outmost turns of two values matrix is complete zero, if non-full zero, abandons;Then two values matrix is removed The binary coding of outmost turns (i.e. (N-2) * (N-2) region of the inside) is converted to unsigned int;
Step S213, carries out code value calculating according to the unsigned int on each candidate airport, owing to there are four courts on airport To, the most respectively calculate four towards code value and choose 4 towards middle code value minima as ID;Thus obtain each and wait Select the ID on airport, landing instruction ID and the unmanned plane on candidate airport received needs the unmanned plane airport ID of landing to carry out Coupling, selects the ID candidate airport that the match is successful as treating landing station;
Step S22, after landing station finds, the image stopping collecting unmanned plane carries out step S210's to S213 Processing, now unmanned plane is according to treating the current height of the landing station positional information on ground, unmanned plane and unmanned plane collection The image information on airport, determine the position treating landing station relative to unmanned plane, then adjust self attitude and fly to treating The top of landing station;
After unmanned plane arrives above aircraft gate, aircraft gate Marker will be capable of identify that and to self poisoning, now unmanned Machine adjustable Yaw direction (rotating around Y-direction, i.e. yaw angle) also finally drops to relevant position, and detailed process is as follows:
Step S23, unmanned plane arrives after above landing station, treats landing station with fixing speed limit trailing edge collection Image, and each two field picture collected is carried out following process:
Step S230, is converted into gray-scale map by the image of collection, utilizes Canny operator to obtain the marginal distribution of binaryzation Figure, utilizes burn into expansion algorithm to carry out noise and filters, then extract the profile information of image;
Step S231, screens aircraft gate Marker
Two categories below profile is filtered in profile information:
The first kind: the area profile less than 2/3 aircraft gate Marker;
Equations of The Second Kind: the profile of internal loss of fecundity profile;
After filtering above two class profiles, choose the outside aircraft gate Marker for convex quadrangle as candidate aircraft gate Marker;(principle of the process that filters here is with as before)
Step S232, is mapped to candidate aircraft gate Marker in square region, utilizes k-means algorithm candidate to be shut down The pixel of position Marker is divided into black and white two class, thus obtains the binary image of candidate aircraft gate Marker;Utilize binary picture As encoding, obtain the two values matrix of a N*N, for two values matrix, first determine whether that whether the outmost turns of two values matrix is Complete zero, if non-full zero, abandon;Then two values matrix is converted to unsigned int except the binary coding of outmost turns;
Step S233, carries out code value calculating according to the unsigned int of each candidate aircraft gate Marker, obtains each The ID of individual candidate aircraft gate Marker, needs fall in landing ID and the unmanned plane of candidate aircraft gate Marker received instruction The ID of the candidate aircraft gate Marker fallen mates, and selects the ID Marker aircraft gate to be landed, candidate aircraft gate that the match is successful Marker;
Step S24, unmanned plane flies to aircraft gate to be landed according to the positional information of aircraft gate Marker to be landed Marker lands behind top position.
During precision approach, unmanned plane carries out landing and calculating the real-time pose of unmanned plane with middling speed, extracts landing The coordinate that 4 angle points of aircraft gate Marker are corresponding, and corresponding with image slices vegetarian refreshments.Combining camera internal reference, utilizes the PnP algorithm can Obtain the attitude of camera.Relative position relation according to unmanned plane Yu camera can be derived by UAV position and orientation.
When unmanned plane drops to certain position, aircraft gate Marker can not be presented in camera plane completely, Now, nested Marker works, and now unmanned plane has only to according to the ID in step S210-S213 (or S230-S233) Analytical algorithm, carrying out that the ID of nested Marker mates can (the nested Marker in the Marker of this aircraft gate).Now unmanned plane Reduce speed now decline, is easy for being affected by wind during declining, and when unmanned plane is blown off level point, unmanned plane passes through To the ID of the satellite Marker photographed to resolve its offset direction and to be modified.

Claims (2)

1. the unmanned plane landing method of a view-based access control model positioning landing end, it is characterised in that comprise the following steps:
Step one, sets up unmanned plane airport
Step S10, arranges aircraft gate Marker, and the design rule of aircraft gate Marker is:
Aircraft gate Marker is all the square structure being made up of N*N grid spaces;In the Marker of each aircraft gate, In the grid spaces of outer ring, at least 2/3 is filled to black, and remaining grid spaces is black or white;
Step S11, arranges nested Marker, the design rule of nested Marker and aircraft gate Marker in the Marker of aircraft gate Identical, except for the difference that the specification of nested Marker is little compared with Marker, and nested Marker has plurality of specifications, is distributed in aircraft gate The inside of Marker;
Step S12, sets up unmanned plane airport, and airport is the square structure being made up of N*N grid spaces, the outmost turns on airport Grid spaces is black, and remaining region is white;It is distributed multiple in the white portion on airport in order or disorderly Described aircraft gate Marker, the most overlapping between the Marker of aircraft gate;
Step 2, the descent of unmanned plane
Step S20, unmanned plane receives landing instruction, and landing instruction comprises the GPS position information on all unmanned plane airports, each In unmanned plane airport needed for the positional information of aircraft gate Marker, the unmanned plane airport ID of the required landing of unmanned plane, unmanned plane The ID of aircraft gate Marker to be landed;
Step S21, utilizes the GPS position information on unmanned plane airport to be guided above airport by unmanned plane, treats that unmanned plane arrives machine After above Chang, gather the image on airport with fixing speed limit trailing edge, and each two field picture collected is carried out step The process of S210 to S213:
Step S210, rim detection and contours extract
The image of collection is converted into gray-scale map, utilizes Canny operator to obtain the marginal distribution figure of binaryzation, utilize burn into swollen Swollen algorithm carries out noise and filters, and then extracts the profile information of image, and profile information is all aircraft gate Marker in comprising airport And the profile on airport;
Step S211, screens unmanned plane airport
Two categories below profile is filtered in profile information:
The first kind: area is less than the profile of 2/3 unmanned plane airport area;
Equations of The Second Kind: the profile of internal loss of fecundity profile;
After filtering above two class profiles, choose the outside unmanned plane airport for convex quadrangle as candidate airport;
Step S212, is mapped to candidate airport in square region, utilizes k-means algorithm to be divided into black by the pixel on candidate airport White two classes, thus obtain the binary image on candidate airport;Utilize binary image to encode, obtain the two-value of a N*N Matrix, for two values matrix, first determines whether whether the outmost turns of two values matrix is complete zero, if non-full zero, abandons;Then will Two values matrix is converted to unsigned int except the binary coding of outmost turns;
Step S213, carries out code value calculating according to the unsigned int on each candidate airport, obtains each candidate airport ID, needs the unmanned plane airport ID of landing to mate in the landing instruction received with unmanned plane by the ID on candidate airport, choosing Select the ID candidate airport that the match is successful as treating landing station;
Step S22, after landing station finds, the image stopping collecting unmanned plane carries out the place of step S210 to S213 Reason, now unmanned plane during flying is to the top treating landing station;
Step S23, unmanned plane arrives after above landing station, treats the figure of landing station with fixing speed limit trailing edge collection Picture, and each two field picture collected is carried out following process:
Step S230, is converted into gray-scale map by the image of collection, utilizes Canny operator to obtain the marginal distribution figure of binaryzation, profit Carry out noise with burn into expansion algorithm to filter, then extract the profile information of image;
Step S231, screens aircraft gate Marker
Two categories below profile is filtered in profile information:
The first kind: the area profile less than 2/3 aircraft gate Marker;
Equations of The Second Kind: the profile of internal loss of fecundity profile;
After filtering above two class profiles, choose the outside aircraft gate Marker for convex quadrangle as candidate aircraft gate Marker;
Step S232, is mapped to candidate aircraft gate Marker in square region, utilizes k-means algorithm by candidate aircraft gate The pixel of Marker is divided into black and white two class, thus obtains the binary image of candidate aircraft gate Marker;Utilize binary image Encode, obtain the two values matrix of a N*N, for two values matrix, first determine whether whether the outmost turns of two values matrix is complete Zero, if non-full zero, abandon;Then two values matrix is converted to unsigned int except the binary coding of outmost turns;
Step S233, carries out code value calculating according to the unsigned int of each candidate aircraft gate Marker, obtains each and waits Select the ID of aircraft gate Marker, landing instruction ID and the unmanned plane of candidate aircraft gate Marker received needs landing The ID of candidate aircraft gate Marker mates, and selecting the ID candidate aircraft gate Marker that the match is successful is aircraft gate to be landed Marker;
Step S24, unmanned plane flies to aircraft gate Marker to be landed according to the positional information of aircraft gate Marker to be landed Orientation postpones lands.
2. the unmanned plane landing method of described view-based access control model positioning landing end as claimed in claim 1, it is characterised in that The design rule phase of satellite Marker, satellite Marker and aircraft gate Marker it is additionally provided with in described aircraft gate Marker With, except for the difference that the area of satellite Marker less than nesting Marker grid spaces area 1/3.
CN201610454292.5A 2016-06-21 2016-06-21 A kind of unmanned plane landing method of view-based access control model positioning landing end Active CN106127201B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610454292.5A CN106127201B (en) 2016-06-21 2016-06-21 A kind of unmanned plane landing method of view-based access control model positioning landing end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610454292.5A CN106127201B (en) 2016-06-21 2016-06-21 A kind of unmanned plane landing method of view-based access control model positioning landing end

Publications (2)

Publication Number Publication Date
CN106127201A true CN106127201A (en) 2016-11-16
CN106127201B CN106127201B (en) 2019-02-15

Family

ID=57471368

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610454292.5A Active CN106127201B (en) 2016-06-21 2016-06-21 A kind of unmanned plane landing method of view-based access control model positioning landing end

Country Status (1)

Country Link
CN (1) CN106127201B (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106527487A (en) * 2016-12-23 2017-03-22 北京理工大学 Autonomous precision landing system of unmanned aerial vehicle on motion platform and landing method
CN107066981A (en) * 2017-04-20 2017-08-18 上海博历机械科技有限公司 For the visual rating scale terrestrial reference positioning identification system of SUAV Autonomous landing
CN107450590A (en) * 2017-08-07 2017-12-08 深圳市科卫泰实业发展有限公司 A kind of unmanned plane auxiliary landing method
CN107578236A (en) * 2017-10-20 2018-01-12 天津航佳机场设备科技有限公司 A kind of bridge based on aircraft number carries equipment metering settlement management system and management method
CN108121360A (en) * 2017-12-19 2018-06-05 歌尔科技有限公司 A kind of unmanned plane position control method and freight transport system
CN109739257A (en) * 2018-12-21 2019-05-10 中科院合肥技术创新工程院 Merge the patrol unmanned machine closing method and system of satellite navigation and visual perception
JP2019077446A (en) * 2017-03-06 2019-05-23 株式会社Spiral Control system for flight vehicle, and marking portion
CN109823552A (en) * 2019-02-14 2019-05-31 深圳市多翼创新科技有限公司 The unmanned plane precision approach method of view-based access control model, storage medium, apparatus and system
CN109901620A (en) * 2019-04-01 2019-06-18 西安因诺航空科技有限公司 A kind of multiple UAVs cooperative system and formation method
CN110221625A (en) * 2019-05-27 2019-09-10 北京交通大学 The Autonomous landing guidance method of unmanned plane exact position
CN110989674A (en) * 2019-12-16 2020-04-10 西安因诺航空科技有限公司 Unmanned aerial vehicle visual guidance landing method based on Aruco label
WO2020211812A1 (en) * 2019-04-19 2020-10-22 深圳市道通智能航空技术有限公司 Aircraft landing method and apparatus
CN112198894A (en) * 2020-07-31 2021-01-08 北京理工大学 Autonomous moving landing guidance method and system for rotor unmanned aerial vehicle
CN113377118A (en) * 2021-07-14 2021-09-10 中国计量大学 Multi-stage accurate landing method for unmanned aerial vehicle hangar based on vision
CN113597591A (en) * 2019-03-21 2021-11-02 Wing航空有限责任公司 Geographic reference for unmanned aerial vehicle navigation
CN113655806A (en) * 2021-07-01 2021-11-16 中国人民解放军战略支援部队信息工程大学 Unmanned aerial vehicle group auxiliary landing method
CN114815905A (en) * 2022-06-29 2022-07-29 中国航空工业集团公司沈阳飞机设计研究所 Multi-machine continuous landing guide control method and device
CN114935946A (en) * 2022-07-21 2022-08-23 浙江这里飞科技有限公司 Unmanned aerial vehicle landing method and device
WO2022261901A1 (en) * 2021-06-17 2022-12-22 深圳市大疆创新科技有限公司 Unmanned aerial vehicle landing control method and apparatus, unmanned aerial vehicle, system, and storage medium
WO2023274321A1 (en) * 2021-07-02 2023-01-05 北京三快在线科技有限公司 Beacon, beacon generation method, beacon generation apparatus, and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103226356A (en) * 2013-02-27 2013-07-31 广东工业大学 Image-processing-based unmanned plane accurate position landing method
CN104166854A (en) * 2014-08-03 2014-11-26 浙江大学 Vision grading landmark locating and identifying method for autonomous landing of small unmanned aerial vehicle
WO2015108588A3 (en) * 2013-10-21 2015-10-08 Kespry, Inc. Systems and methods for unmanned aerial vehicle landing
US20160122038A1 (en) * 2014-02-25 2016-05-05 Singularity University Optically assisted landing of autonomous unmanned aircraft
CN105676873A (en) * 2016-03-08 2016-06-15 览意科技(上海)有限公司 Automatic landing method and control system of unmanned aerial vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103226356A (en) * 2013-02-27 2013-07-31 广东工业大学 Image-processing-based unmanned plane accurate position landing method
WO2015108588A3 (en) * 2013-10-21 2015-10-08 Kespry, Inc. Systems and methods for unmanned aerial vehicle landing
US20160122038A1 (en) * 2014-02-25 2016-05-05 Singularity University Optically assisted landing of autonomous unmanned aircraft
CN104166854A (en) * 2014-08-03 2014-11-26 浙江大学 Vision grading landmark locating and identifying method for autonomous landing of small unmanned aerial vehicle
CN105676873A (en) * 2016-03-08 2016-06-15 览意科技(上海)有限公司 Automatic landing method and control system of unmanned aerial vehicle

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106527487A (en) * 2016-12-23 2017-03-22 北京理工大学 Autonomous precision landing system of unmanned aerial vehicle on motion platform and landing method
JP2019077446A (en) * 2017-03-06 2019-05-23 株式会社Spiral Control system for flight vehicle, and marking portion
CN107066981A (en) * 2017-04-20 2017-08-18 上海博历机械科技有限公司 For the visual rating scale terrestrial reference positioning identification system of SUAV Autonomous landing
CN107450590A (en) * 2017-08-07 2017-12-08 深圳市科卫泰实业发展有限公司 A kind of unmanned plane auxiliary landing method
CN107578236A (en) * 2017-10-20 2018-01-12 天津航佳机场设备科技有限公司 A kind of bridge based on aircraft number carries equipment metering settlement management system and management method
CN108121360A (en) * 2017-12-19 2018-06-05 歌尔科技有限公司 A kind of unmanned plane position control method and freight transport system
CN108121360B (en) * 2017-12-19 2023-07-21 歌尔科技有限公司 Unmanned aerial vehicle positioning control method and freight system
CN109739257A (en) * 2018-12-21 2019-05-10 中科院合肥技术创新工程院 Merge the patrol unmanned machine closing method and system of satellite navigation and visual perception
CN109823552A (en) * 2019-02-14 2019-05-31 深圳市多翼创新科技有限公司 The unmanned plane precision approach method of view-based access control model, storage medium, apparatus and system
CN113597591B (en) * 2019-03-21 2024-05-10 Wing航空有限责任公司 Geographic benchmarking for unmanned aerial vehicle navigation
CN113597591A (en) * 2019-03-21 2021-11-02 Wing航空有限责任公司 Geographic reference for unmanned aerial vehicle navigation
CN109901620A (en) * 2019-04-01 2019-06-18 西安因诺航空科技有限公司 A kind of multiple UAVs cooperative system and formation method
WO2020211812A1 (en) * 2019-04-19 2020-10-22 深圳市道通智能航空技术有限公司 Aircraft landing method and apparatus
CN110221625A (en) * 2019-05-27 2019-09-10 北京交通大学 The Autonomous landing guidance method of unmanned plane exact position
CN110221625B (en) * 2019-05-27 2021-08-03 北京交通大学 Autonomous landing guiding method for precise position of unmanned aerial vehicle
CN110989674A (en) * 2019-12-16 2020-04-10 西安因诺航空科技有限公司 Unmanned aerial vehicle visual guidance landing method based on Aruco label
CN110989674B (en) * 2019-12-16 2023-03-31 西安因诺航空科技有限公司 Unmanned aerial vehicle visual guidance landing method based on ArUco label
CN112198894A (en) * 2020-07-31 2021-01-08 北京理工大学 Autonomous moving landing guidance method and system for rotor unmanned aerial vehicle
WO2022261901A1 (en) * 2021-06-17 2022-12-22 深圳市大疆创新科技有限公司 Unmanned aerial vehicle landing control method and apparatus, unmanned aerial vehicle, system, and storage medium
CN113655806A (en) * 2021-07-01 2021-11-16 中国人民解放军战略支援部队信息工程大学 Unmanned aerial vehicle group auxiliary landing method
CN113655806B (en) * 2021-07-01 2023-08-08 中国人民解放军战略支援部队信息工程大学 Unmanned aerial vehicle group auxiliary landing method
WO2023274321A1 (en) * 2021-07-02 2023-01-05 北京三快在线科技有限公司 Beacon, beacon generation method, beacon generation apparatus, and device
CN113377118A (en) * 2021-07-14 2021-09-10 中国计量大学 Multi-stage accurate landing method for unmanned aerial vehicle hangar based on vision
CN114815905B (en) * 2022-06-29 2022-09-20 中国航空工业集团公司沈阳飞机设计研究所 Multi-machine continuous landing guide control method and device
CN114815905A (en) * 2022-06-29 2022-07-29 中国航空工业集团公司沈阳飞机设计研究所 Multi-machine continuous landing guide control method and device
CN114935946A (en) * 2022-07-21 2022-08-23 浙江这里飞科技有限公司 Unmanned aerial vehicle landing method and device

Also Published As

Publication number Publication date
CN106127201B (en) 2019-02-15

Similar Documents

Publication Publication Date Title
CN106127201B (en) A kind of unmanned plane landing method of view-based access control model positioning landing end
US11693428B2 (en) Methods and system for autonomous landing
US11454988B2 (en) Systems and methods for automated landing of a drone
CN107544550B (en) Unmanned aerial vehicle automatic landing method based on visual guidance
US6952632B2 (en) Method of guiding an aircraft in the final approach phase and a corresponding system
Kalinov et al. High-precision uav localization system for landing on a mobile collaborative robot based on an ir marker pattern recognition
Marut et al. ArUco markers pose estimation in UAV landing aid system
CN106054929A (en) Unmanned plane automatic landing guiding method based on optical flow
CN106054931A (en) Unmanned aerial vehicle fixed-point flight control system based on visual positioning
Li et al. Toward automated power line corridor monitoring using advanced aircraft control and multisource feature fusion
CN105644785A (en) Unmanned aerial vehicle landing method based on optical flow method and horizon line detection
CN109885086A (en) A kind of unmanned plane vertical landing method based on the guidance of multiple polygonal shape mark
CN104091369A (en) Unmanned aerial vehicle remote-sensing image building three-dimensional damage detection method
CN109460046B (en) Unmanned aerial vehicle natural landmark identification and autonomous landing method
Zarandy et al. A novel algorithm for distant aircraft detection
CN109613926A (en) Multi-rotor unmanned aerial vehicle land automatically it is High Precision Automatic identification drop zone method
Oszust et al. A vision-based method for supporting autonomous aircraft landing
Minghui et al. Deep learning enabled localization for UAV autolanding
CN114689030A (en) Unmanned aerial vehicle auxiliary positioning method and system based on airborne vision
US11816863B2 (en) Method and device for assisting the driving of an aircraft moving on the ground
Kim et al. Fusing lidar data and aerial imagery with perspective correction for precise localization in urban canyons
CN106128170A (en) A kind of aircraft berth intelligent indicating system
Pan et al. BRISK based target localization for fixed-wing UAV's vision-based autonomous landing
US20220397676A1 (en) Aircraft identification
US20220406040A1 (en) Method and device for generating learning data for an artificial intelligence machine for aircraft landing assistance

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A landing method of UAV Based on vision positioning landing terminal

Effective date of registration: 20200729

Granted publication date: 20190215

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: XI'AN INNNO AVIATION TECHNOLOGY Co.,Ltd.

Registration number: Y2020990000846

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20211028

Granted publication date: 20190215

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: XI'AN INNNO AVIATION TECHNOLOGY Co.,Ltd.

Registration number: Y2020990000846

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A landing method of UAV Based on visual positioning landing end

Effective date of registration: 20211124

Granted publication date: 20190215

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: XI'AN INNNO AVIATION TECHNOLOGY Co.,Ltd.

Registration number: Y2021610000357

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20221115

Granted publication date: 20190215

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: XI'AN INNNO AVIATION TECHNOLOGY Co.,Ltd.

Registration number: Y2021610000357