CN109606678B - Crawler-type unmanned aerial vehicle capable of automatically positioning bridge support - Google Patents

Crawler-type unmanned aerial vehicle capable of automatically positioning bridge support Download PDF

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CN109606678B
CN109606678B CN201811396449.9A CN201811396449A CN109606678B CN 109606678 B CN109606678 B CN 109606678B CN 201811396449 A CN201811396449 A CN 201811396449A CN 109606678 B CN109606678 B CN 109606678B
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support
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CN109606678A (en
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崔弥达
吴刚
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Southeast University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C39/00Aircraft not otherwise provided for
    • B64C39/02Aircraft not otherwise provided for characterised by special use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00Equipment not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00Equipment not otherwise provided for
    • B64D47/08Arrangements of cameras
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • 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

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  • Aviation & Aerospace Engineering (AREA)
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Abstract

The invention discloses a crawler-type unmanned aerial vehicle capable of automatically positioning a bridge support, which comprises a vehicle body, a crawler-type support and a connecting device, wherein the crawler-type support comprises a crawler and a support, the support comprises two frames which are arranged in parallel, a plurality of rotating rods are rotatably connected between the two frames, the crawler is sleeved on the rotating rods, and the vehicle body is connected with the frames through the connecting device; in addition, crawler-type unmanned aerial vehicle still includes image acquisition module and control module, and image acquisition module gathers bridge beam supports's image, and control module is according to the position of the automatic definite support of image and control unmanned aerial vehicle automatic adjustment and the relative position of support. The invention can automatically adjust the relative position between the unmanned aerial vehicle and the bridge support and improve the stability of the unmanned aerial vehicle.

Description

Crawler-type unmanned aerial vehicle capable of automatically positioning bridge support
Technical Field
The invention relates to civil engineering and artificial intelligence crossing technologies, in particular to a crawler-type unmanned aerial vehicle for automatically positioning a bridge bearing.
Background
With the rapid development of the infrastructure construction of China in recent years, the civil engineering industry develops rapidly, and after a large number of roads and bridges are constructed, the later-stage detection and maintenance work is carried out. The bridge support is an important component for connecting upper and lower structures of a bridge, can be the throat of the bridge, has a great relationship, and once a disease occurs, if the disease is not found and treated in time, the stress state and traffic safety of the structure are influenced. At present, the main detection way of the bridge support is manual detection, and the method is time-consuming, labor-consuming and can influence traffic. Some bridges built in mountains and on the sea are difficult to realize by a manual detection method, or the safety of bridge detection personnel is difficult to ensure. Therefore, an apparatus for automatically positioning a bridge support and collecting an image of the support is urgently needed.
Along with the rapid development of unmanned aerial vehicle technique, unmanned aerial vehicle's application also more permeates each industry, however, often because there is certain safe distance between unmanned aerial vehicle and the barrier when shooing the support with unmanned aerial vehicle among the prior art, the distance of unmanned aerial vehicle and bridge lower surface is far away when consequently shooing the support, this can influence the shooting angle and the shooting quality of support, can lead to the stability of unmanned aerial vehicle self to reduce because of the air current when unmanned aerial vehicle is close to the decking in addition, can't acquire high-quality support photo. And when using unmanned aerial vehicle to shoot bridge beam supports at present, the relative position between adjustment unmanned aerial vehicle and the bridge beam supports all relies on the manual work to go on, and this kind of method efficiency is lower.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a crawler-type unmanned aerial vehicle capable of automatically positioning a bridge support, which can automatically adjust the relative position between the unmanned aerial vehicle and the bridge support and improve the stability of the unmanned aerial vehicle.
The technical scheme is as follows: the crawler-type unmanned aerial vehicle for automatically positioning the bridge support comprises a body, a crawler-type support and a connecting device, wherein the crawler-type support comprises a crawler and a support, the support comprises two frames which are arranged in parallel, a plurality of rotating rods are rotatably connected between the two frames, the crawler is sleeved on the rotating rods, and the body is connected with the frames through the connecting device; in addition, crawler-type unmanned aerial vehicle still includes image acquisition module and control module, and image acquisition module gathers bridge beam supports's image, and control module is according to the position of the automatic definite support of image and control unmanned aerial vehicle automatic adjustment and the relative position of support.
Further, the connecting device is telescopic.
Further, the connecting device comprises a holding part, a connecting rod and a fixing rod fixedly connected between the two frames, the holding part is connected with one end of the connecting wire, the connecting rod is provided with a boss, the fixing rod is fixedly connected with a track, the track is respectively connected with one end of the spring and one end of the adjusting rod, the other end of the spring is positioned below the boss, and the other end of the spring is respectively connected with the other end of the connecting wire and the other end of the adjusting rod.
Further, the shape of the portion of gripping is cyclic annular, and the connecting rod adopts elastic material to make, makes unmanned aerial vehicle have certain shock-absorbing function when leaning on the decking bottom like this.
Furthermore, the number of the tracks is two, and the two tracks are respectively positioned on two sides of the connecting rod.
Further, the boss is plural.
Furthermore, all the rotating rods are uniformly distributed on the peripheries of the two frames.
Further, the control module automatically determines the position of the support through a convolutional neural network, and the establishment of the convolutional neural network comprises the following steps:
s1: acquiring an image of a bridge support, adjusting the size of the image of the bridge support, calibrating position information of the support, and preprocessing the image;
s2: dividing the bridge support image into a training set and a test set, wherein the training set is used for training a convolutional neural network, and the test set is used for testing the convolutional neural network;
s3: establishing a convolutional neural network which comprises an input layer, an output layer, a convolutional layer and a pooling layer, wherein the output value of the convolutional neural network is the position information of the support in the bridge support image;
s4: and measuring the error between the actual output value of the convolutional neural network and the support position information which is calibrated in the step S1 through a loss function, and iteratively training the weight values of all layers of the convolutional neural network through a gradient descent method and a back propagation algorithm to obtain the convolutional neural network with the function of automatically positioning the bridge support.
Further, in step S1, the calibration of the support position information is performed by: and establishing a Cartesian coordinate system by taking the upper left corner of the picture as the origin of a coordinate axis, drawing a rectangular frame at the position of the support in the picture, and expressing the position of the support by using the corner coordinates of the rectangular frame.
Further, the loss function in step S4 is a mean square error MSE, which is obtained according to equation (1):
Figure BDA0001875307060000021
in the formula (1), n is convolution neural net for each inputThe number of images of the collaterals; y isiIs the output value of the convolutional neural network,
Figure BDA0001875307060000022
the information of the support position calibrated in step S1.
Has the advantages that: the invention discloses a crawler-type unmanned aerial vehicle capable of automatically positioning a bridge support, which has the following beneficial effects compared with the prior art:
1) according to the invention, through the matching of the control module and the image acquisition module, the relative position between the unmanned aerial vehicle and the bridge support can be automatically adjusted, manual adjustment is not needed, and the efficiency is improved;
2) according to the invention, through the design of the crawler-type support, the unmanned aerial vehicle can be positioned below the bridge deck by means of the crawler-type support; and there is static friction between track and the decking, when unmanned aerial vehicle rolled along the decking and shoots, only had the dwang to take place to rotate, can improve unmanned aerial vehicle's stability like this.
Drawings
Fig. 1 is a structural diagram of an unmanned aerial vehicle in the embodiment of the present invention;
FIG. 2 is a block diagram of a track frame according to an embodiment of the present invention;
fig. 3 is a structural diagram of the drone with the track removed in the particular embodiment of the invention;
FIG. 4 is a block diagram of a second embodiment of a coupling device in accordance with an embodiment of the present invention;
FIG. 5 is a block diagram of a second embodiment of a coupling device in accordance with the present invention in its natural state;
FIG. 6 is a view showing a construction of a second embodiment of a connecting device according to the present invention when a grip portion is pulled up.
Detailed Description
This embodiment discloses an automatic crawler-type unmanned aerial vehicle of location bridge beam supports, as shown in fig. 1, including fuselage 1, crawler-type support 2, connecting device 3, image acquisition module and control module, fuselage 1 passes through connecting device 3 and connects crawler-type support 2, and image acquisition module gathers bridge beam supports's image, and control module is according to the position of the automatic definite support of image and control unmanned aerial vehicle automatic adjustment and the relative position of support.
As shown in fig. 1, the crawler frame 2 includes a crawler 21 and a frame 22. As shown in fig. 2, the support 22 includes two frames 221 arranged in parallel, a plurality of rotating rods 222 are rotatably connected between the two frames 221, and the crawler belt 21 is sleeved on the rotating rods 222. The rotating levers 222 are uniformly arranged in the circumferential direction of the two frames 221.
A first embodiment of the connecting device 3, shown in fig. 1 and 3, comprises connecting rods and fixing rods perpendicular to each other and fixedly connected, the fixing rods being fixed between the two frames 221. The connecting means 3 is not telescopic in this embodiment.
A second embodiment of the connecting device 3 is shown in fig. 4, and includes an annular grip portion 31, a connecting rod 33, and a fixing rod 32 fixedly connected between two frames 221. As shown in fig. 5, the holding portion 31 is connected to one end of the connecting line 341, the connecting rod 33 is provided with four bosses 331, the fixing rod 32 is fixedly connected to two rails 34, the two rails 34 are respectively located at two sides of the connecting rod 33, the rails 34 are respectively connected to one end of the spring 35 and one end of the adjusting rod 36, the other end of the spring 35 is located below the bosses 331, and the other end of the spring 35 is respectively connected to the other end of the connecting line 341 and the other end of the adjusting rod 36. Two groups of springs 35 and two groups of adjusting rods 36 are provided respectively. The connecting rod 33 is made of an elastic material, such as rubber. The track 34 is also provided with a housing 37 on the outside, as shown in fig. 4. In this embodiment, the connecting device 3 is retractable, and how to achieve the retractable is described as follows: when the holding portion 31 is pulled up, as shown in fig. 6, the connecting wire 341 rotates the adjusting rod 36, the spring 35 is compressed, the connecting rod 33 can be controlled to move upward or downward, the adjusting rod 36 can move in the track 34, and the holding portion 31 is released when the connecting rod 33 moves upward or downward to a proper position, that is, when the device 3 to be connected contracts or expands to a proper length. The length adjustment (expansion) of the connecting device 3 is discontinuous, and only integral multiple of the distance between the bosses 331 can be adjusted.
The image acquisition module may employ a device capable of taking high definition images, such as a Canon 5D3 camera.
The control module adopts an artificial intelligence chip, and the artificial intelligence chip can select the cambrian 1H8 which is issued by the Chinese academy and faces the low-power-consumption scene vision application. Different from the traditional chip, the new generation of cambrian artificial intelligence chip simulates neurons and synapses of the brain, one instruction can complete the processing of a group of neurons, and the efficiency of the calculation mode is hundreds of times higher than that of the traditional chip when the intelligent processing is carried out, and the performance power consumption ratio also realizes leap.
The control module automatically determines the position of the support through a convolutional neural network, and the establishment of the convolutional neural network comprises the following steps:
s1: acquiring an image of a bridge support, adjusting the size of the image of the bridge support, calibrating position information of the support, and preprocessing the image;
s2: dividing the bridge support image into a training set and a test set, wherein the training set is used for training a convolutional neural network, and the test set is used for testing the convolutional neural network;
s3: establishing a convolutional neural network which comprises an input layer, an output layer, a convolutional layer and a pooling layer, wherein the output value of the convolutional neural network is the position information of the support in the bridge support image;
s4: and measuring the error between the actual output value of the convolutional neural network and the support position information which is calibrated in the step S1 through a loss function, and iteratively training the weight values of all layers of the convolutional neural network through a gradient descent method and a back propagation algorithm to obtain the convolutional neural network with the function of automatically positioning the bridge support.
In step S1, the calibration of the support position information is performed by: and establishing a Cartesian coordinate system by taking the upper left corner of the picture as the origin of a coordinate axis, drawing a rectangular frame at the position of the support in the picture, and expressing the position of the support by using the corner coordinates of the rectangular frame. The image preprocessing method comprises the following steps: the sum of the pixel values of all the images is calculated and then divided by the number of images to obtain a mean image, and the pixel values of the mean image are subtracted in each image.
The loss function in step S4 is a mean square error MSE, which is obtained according to equation (1):
Figure BDA0001875307060000051
in the formula (1), n is the number of images input into the convolutional neural network each time; y isiIs the output value of the convolutional neural network,
Figure BDA0001875307060000052
the information of the support position calibrated in step S1.
In step S4, the gradient descent method specifically includes: and calculating the gradient of the loss function to each weight, starting from any point, moving for a certain distance along the opposite direction of the gradient of the point, and continuously moving for a certain distance along the opposite direction of the gradient at a new position, so that the weight of the network is continuously updated. The back propagation algorithm comprises the following specific steps: when the weights of all layers of the convolutional neural network are updated iteratively by using a gradient descent method, the gradients are propagated forwards from the last layer of the network in sequence according to a chain derivation method.

Claims (10)

1. The utility model provides an automatic crawler-type unmanned aerial vehicle of location bridge beam supports which characterized in that: the crawler-type support comprises a machine body (1), a crawler-type support (2) and a connecting device (3), wherein the crawler-type support (2) comprises a crawler (21) and a support (22), the support (22) comprises two frames (221) which are arranged in parallel, a plurality of rotating rods (222) are rotatably connected between the two frames (221), the crawler (21) is sleeved on the rotating rods (222), and the machine body (1) is connected with the frames (221) through the connecting device (3); in addition, crawler-type unmanned aerial vehicle still includes image acquisition module and control module, and image acquisition module gathers bridge beam supports's image, and control module is according to the position of the automatic definite support of image and control unmanned aerial vehicle automatic adjustment and the relative position of support.
2. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 1, wherein: the connecting device (3) is telescopic.
3. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 2, wherein: connecting device (3) are including portion of gripping (31), connecting rod (33) and fixed rod (32) of fixed connection between two frames (221), the one end of connecting wire (341) is connected in portion of gripping (31), be equipped with boss (331) on connecting rod (33), dead rod (32) fixed connection track (34), the one end of spring (35) and the one end of adjusting pole (36) are connected respectively in track (34), the other end of spring (35) is located boss (331) below, and the other end of connecting wire (341) and the other end of adjusting pole (36) are connected respectively to the other end of spring (35).
4. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 3, wherein: the shape of the holding part (31) is annular, and the connecting rod (33) is made of elastic materials.
5. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 3, wherein: the number of the tracks (34) is two, and the two tracks are respectively positioned on two sides of the connecting rod (33).
6. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 3, wherein: the boss (331) is plural.
7. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 1, wherein: all the rotating rods (222) are uniformly arranged on the circumferential direction of the two frames (221).
8. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 1, wherein: the control module automatically determines the position of the support through a convolutional neural network, and the establishment of the convolutional neural network comprises the following steps:
s1: acquiring an image of a bridge support, adjusting the size of the image of the bridge support, calibrating position information of the support, and preprocessing the image;
s2: dividing the bridge support image into a training set and a test set, wherein the training set is used for training a convolutional neural network, and the test set is used for testing the convolutional neural network;
s3: establishing a convolutional neural network which comprises an input layer, an output layer, a convolutional layer and a pooling layer, wherein the output value of the convolutional neural network is the position information of the support in the bridge support image;
s4: and measuring the error between the actual output value of the convolutional neural network and the support position information which is calibrated in the step S1 through a loss function, and iteratively training the weight values of all layers of the convolutional neural network through a gradient descent method and a back propagation algorithm to obtain the convolutional neural network with the function of automatically positioning the bridge support.
9. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 8, wherein: in step S1, the calibration of the support position information is performed by: and establishing a Cartesian coordinate system by taking the upper left corner of the picture as the origin of a coordinate axis, drawing a rectangular frame at the position of the support in the picture, and expressing the position of the support by using the corner coordinates of the rectangular frame.
10. The tracked unmanned aerial vehicle for automatically positioning a bridge support according to claim 8, wherein: the loss function in step S4 is a mean square error MSE, which is obtained according to equation (1):
Figure FDA0001875307050000021
in the formula (1), n is the number of images input into the convolutional neural network each time; y isiIs the output value of the convolutional neural network,
Figure FDA0001875307050000022
the information of the support position calibrated in step S1.
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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003099656A1 (en) * 2002-05-23 2003-12-04 Gerhard Mellmann Aircraft comprising a rescue device
CN103459250A (en) * 2011-03-29 2013-12-18 法国高等航空和航天学院 Remotely controlled micro/nanoscale aerial vehicle comprising a system for traveling on the ground, vertical takeoff, and landing
CN103712035A (en) * 2014-01-08 2014-04-09 北京理工大学 Cage type pipeline aircraft
CN204161620U (en) * 2014-10-16 2015-02-18 云南电网公司红河供电局 The full landform retractable landing gear of depopulated helicopter
CN105354568A (en) * 2015-08-24 2016-02-24 西安电子科技大学 Convolutional neural network based vehicle logo identification method
CN106467168A (en) * 2015-08-17 2017-03-01 富士通株式会社 Aircraft frame structure, aircraft, aircraft using method
CN106956768A (en) * 2017-05-02 2017-07-18 锐合防务技术(北京)有限公司 Aircraft
CN206367593U (en) * 2016-12-28 2017-08-01 芜湖元一航空科技有限公司 A kind of inspection multi-purpose unmanned aerial vehicle
CN107352022A (en) * 2017-06-08 2017-11-17 国蓉科技有限公司 A kind of spherical UAS of rotor of impact resistant four
CN207550496U (en) * 2017-12-15 2018-06-29 江苏航丰智控无人机有限公司 Collapsible damping device and the unmanned plane of rising and falling
CN108288269A (en) * 2018-01-24 2018-07-17 东南大学 Bridge pad disease automatic identifying method based on unmanned plane and convolutional neural networks
CN207670666U (en) * 2017-12-20 2018-07-31 深圳市中联讯科技有限公司 Unmanned plane with shock-damping structure
CN207956042U (en) * 2018-02-07 2018-10-12 北京交通大学 A kind of novel unmanned plane undercarriage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946531B2 (en) * 2008-02-14 2011-05-24 The Boeing Company Debris deflecting device, system, and method
CN102541064A (en) * 2012-03-27 2012-07-04 沈阳中兴电力通信有限公司 Magnetic navigation routing inspection robot
US9725161B2 (en) * 2013-12-10 2017-08-08 Borealis Technical Limited Method for maximizing powered aircraft drive wheel traction
US9810098B2 (en) * 2014-07-11 2017-11-07 General Electric Company System and method for inspecting turbomachines
US9418319B2 (en) * 2014-11-21 2016-08-16 Adobe Systems Incorporated Object detection using cascaded convolutional neural networks
CN206756706U (en) * 2017-05-26 2017-12-15 中铁十八局集团有限公司 Bridge bottom disease follow shot system
CN107737755B (en) * 2017-11-07 2021-04-09 雅砻江流域水电开发有限公司 Intelligent mobile trash removal system based on hydroelectric power generation and control method thereof

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003099656A1 (en) * 2002-05-23 2003-12-04 Gerhard Mellmann Aircraft comprising a rescue device
CN103459250A (en) * 2011-03-29 2013-12-18 法国高等航空和航天学院 Remotely controlled micro/nanoscale aerial vehicle comprising a system for traveling on the ground, vertical takeoff, and landing
CN103712035A (en) * 2014-01-08 2014-04-09 北京理工大学 Cage type pipeline aircraft
CN204161620U (en) * 2014-10-16 2015-02-18 云南电网公司红河供电局 The full landform retractable landing gear of depopulated helicopter
CN106467168A (en) * 2015-08-17 2017-03-01 富士通株式会社 Aircraft frame structure, aircraft, aircraft using method
CN105354568A (en) * 2015-08-24 2016-02-24 西安电子科技大学 Convolutional neural network based vehicle logo identification method
CN206367593U (en) * 2016-12-28 2017-08-01 芜湖元一航空科技有限公司 A kind of inspection multi-purpose unmanned aerial vehicle
CN106956768A (en) * 2017-05-02 2017-07-18 锐合防务技术(北京)有限公司 Aircraft
CN107352022A (en) * 2017-06-08 2017-11-17 国蓉科技有限公司 A kind of spherical UAS of rotor of impact resistant four
CN207550496U (en) * 2017-12-15 2018-06-29 江苏航丰智控无人机有限公司 Collapsible damping device and the unmanned plane of rising and falling
CN207670666U (en) * 2017-12-20 2018-07-31 深圳市中联讯科技有限公司 Unmanned plane with shock-damping structure
CN108288269A (en) * 2018-01-24 2018-07-17 东南大学 Bridge pad disease automatic identifying method based on unmanned plane and convolutional neural networks
CN207956042U (en) * 2018-02-07 2018-10-12 北京交通大学 A kind of novel unmanned plane undercarriage

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