US20210273422A1 - Drone with tool positioning system - Google Patents

Drone with tool positioning system Download PDF

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Publication number
US20210273422A1
US20210273422A1 US17/323,153 US202117323153A US2021273422A1 US 20210273422 A1 US20210273422 A1 US 20210273422A1 US 202117323153 A US202117323153 A US 202117323153A US 2021273422 A1 US2021273422 A1 US 2021273422A1
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United States
Prior art keywords
tool
component
relative
unmanned aerial
aerial vehicle
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Abandoned
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US17/323,153
Inventor
Samuel LAVOIE
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Hydro Quebec
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Hydro Quebec
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Publication date
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Priority to US17/323,153 priority Critical patent/US20210273422A1/en
Publication of US20210273422A1 publication Critical patent/US20210273422A1/en
Assigned to HYDRO-QUEBEC reassignment HYDRO-QUEBEC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LAVOIE, SAMUEL
Abandoned legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • 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
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00UAVs specially adapted for particular uses or applications
    • B64U2101/25UAVs specially adapted for particular uses or applications for manufacturing or servicing
    • B64U2101/26UAVs specially adapted for particular uses or applications for manufacturing or servicing for manufacturing, inspections or repairs
    • B64C2201/12
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2201/00UAVs characterised by their flight controls
    • B64U2201/20Remote controls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20Rotors; Rotor supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00Propulsion; Power supply
    • B64U50/10Propulsion
    • B64U50/19Propulsion using electrically powered motors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors

Definitions

  • the application relates generally to power lines and, more particularly, relates to an apparatus and a method for inspecting components thereof.
  • a robot equipped with the inspection equipment and controlled remotely can prove to be advantageous for the implementation of certain techniques. Whether it is a robot designed to bear and move directly on the line and/or an airborne-type robot, establishing and maintaining an adequate position of the inspection equipment relative to the targeted component can be arduous or even impossible.
  • an unmanned aerial vehicle mountable relative to a power line for monitoring a component of the line comprising: a body having sides and a propulsion system to lift, lower and navigate the vehicle relative to the line; a tool positioning system including a displacement module having a first member mounted to the body, a second member movable vertically relative to the first member, and a tool holder pivotably coupled to the second member; and a monitoring tool mountable to the tool holder to be positioned remotely from the body on one side of the sides of the body and to be movable with the tool holder relative to the body for mounting to or around the component.
  • a method of positioning an unmanned aerial vehicle relative to a component of a power line comprising: landing a body of the vehicle on the line with a side of the body at a distance from the component of the line; and moving a component monitoring tool relative to the side of the body in a vertical direction along the side of the body to mount the monitoring tool to or around the component.
  • a tool positioning system of an unmanned aerial vehicle mountable relative to a power line to monitor a component of the line comprising: a displacement module having a first member mountable to one side of a body of the unmanned aerial vehicle, a second member movable vertically relative to the first member on the side of the body, and a tool holder pivotably coupled to the second member and couplable to a tool, the tool holder being movable relative to the body to mount the tool to or around the component.
  • FIG. 1 is a perspective view of an unmanned aerial vehicle, the vehicle mounted on a power line near a component of the line;
  • FIG. 2A is a side cross-sectional view of a portion of the power line of FIG. 1 including the component of FIG. 1 ;
  • FIG. 2B is a side cross-sectional view of a portion of the power line of FIG. 1 with a component
  • FIG. 3 is an enlarged perspective view of a component monitoring tool of FIG. 1 , shown in contact with the portion of the power line of FIG. 2A ;
  • FIG. 4 is a side view of the unmanned aerial vehicle of FIG. 1 , showing a vertical displacement range of a tool positioning system of the vehicle;
  • FIG. 5A is a perspective view of the tool positioning system of the vehicle of FIG. 4 , a tool holder of the tool positioning system being shown in a first vertical position;
  • FIG. 5B is a perspective view of the tool positioning system of the vehicle of FIG. 4 , the tool holder of the tool positioning system being shown in a second vertical position;
  • FIG. 6 is a perspective view of another configuration of an unmanned aerial vehicle
  • FIG. 6A is another perspective view of a portion of the unmanned aerial vehicle of FIG. 6 ;
  • FIG. 7A is a top view of the vehicle of FIG. 6 , showing a tool holder and a support arm of a tool positioning system of the vehicle respectively pivoted by a first angle and by a second angle with respect to a body of the vehicle;
  • FIG. 7B is a top view of the vehicle of FIG. 6 , showing the tool holder and the support arm respectively pivoted relative to the body of the vehicle;
  • FIG. 8 is a schematic illustration of a kinematic chain for a tool positioning system of an unmanned aerial vehicle.
  • FIG. 1 illustrates an unmanned aerial vehicle 10 (sometimes referred to herein as a “drone,” or simply “UAV 10 ”).
  • the UAV 10 is used to inspect an electrical component 11 (hereinafter “component 11 ”) of an electrical line 12 .
  • the electrical line 12 can take several forms and comprises all the different types of aerial lines in the field of transmitting an electric current.
  • the electrical line 12 is therefore sometimes referred to in the present description simply as “the line 12 .”
  • the electrical line 12 is an aerial electricity transmission line.
  • the component 11 is located on a portion of the line 12 suspended at a distance from the ground.
  • the UAV 10 can be positioned close to the component 11 , while an operator of the UAV 10 can be at a safe distance from the line 12 , such as on the ground below the line 12 .
  • Various communication modes can be used for UAV 10 control purposes. For example, communication via cellular or satellite network may allow control of the UAV 10 by an off-site operator.
  • the use of the UAV 10 to monitor the component 11 of the line 12 may be advantageous when it is situated in a location to which sending personnel would require specialized transportation means, such as a helicopter.
  • the UAV 10 comprises a body 20 , a monitoring tool 30 mounted to the body 20 , a displacement assembly 40 for displacing the UAV 10 relative to the line 12 , and a positioning system 50 through which the monitoring tool 30 is mounted to the body and which allows the monitoring tool 30 to be displaced relative to the body 20 .
  • the body 20 is a structural component of the UAV 10 which is intended to support, contain and/or interconnect various members or components of the UAV 10 .
  • the body 20 can assume any suitable shape to achieve such a functionality.
  • the body 20 comprises a propulsion system 21 in order to provide lift and/or thrust to the UAV 10 for aerial displacement (or aerial navigation) purposes controllable via a control unit of the UAV 10 .
  • the body 20 comprises a housing 22 which contains the control unit of the UAV 10 .
  • the control unit exchanges with a remote computer for the transmission of data acquired by the UAV 10 and the reception of instructions transmitted for example selectively by the operator and/or in an automated manner via the computer.
  • the control unit comprises a processor which executes algorithms to aid in the operation of the UAV 10 , for example by processing the received data and the data intended to be transmitted. In other embodiments, the control unit can operate according to autonomous flight instructions stored in memory located within the UAV 10 itself. Arms 23 of the body 20 extend outward from the housing 22 to rotor assemblies 24 of the propulsion system 21 . Each of the rotor assemblies 24 includes a propeller 24 a and an electric motor 24 b for driving the propeller 24 a . The control unit communicates with and coordinates the rotor assemblies 24 to generate lift for the UAV 10 and to maneuver it in flight in response to remote control instructions provided by the operator.
  • a visual camera for example a lidar system (“light detection and ranging”) or other suitable system to provide an indication of the position of the UAV 10 in relation to its environment, such as the line 12 and its components 11 .
  • This feedback is communicated by the control unit to the technician and helps the technician steer the UAV 10 relative to the line 12 .
  • a landing gear 25 is mounted to the body 20 via the arms 23 and extends vertically downward relative to the body 20 .
  • the landing gear 25 comprises a base 27 defining a support plane P.
  • the base 27 makes it possible to support the weight of the body 20 and of the other components of the UAV 10 when the base 27 is positioned on flat and horizontal ground so that the support plane P is parallel to the ground.
  • the base 27 is configured to form two parts respectively on either side of a longitudinal axis U of the UAV 10 , i.e. two feet 27 a , 27 b spaced apart from one another.
  • a three-dimensional axis system specific to the UAV 10 is defined by an axis X parallel to the axis U and perpendicular to a first side 20 a of the body 20 , an axis Z parallel to a direction normal to the support plane P, and an axis Y orthogonal to the axes X and Z.
  • Batteries 28 of the UAV 10 are installed on the landing gear 25 adjacent to the feet 27 a , 27 b . This positioning of the batteries 28 allows the mass of the UAV 10 to be distributed so that a center of gravity 10 a of the UAV 10 is lowered relative to the body 20 .
  • the center of gravity 10 a of the UAV 10 thus lowered gives the UAV 10 improved stability and balance when it is not supported horizontally, for example when it is resting on the line 12 .
  • the displacement assembly 40 of the UAV 10 is located under the body 20 between the feet 27 a , 27 b , and defines the axis U.
  • the displacement assembly 40 comprises rolling elements 42 connected to the body 20 in a pivotable manner, located one after the other and respectively near the first side 20 a of the body 20 and close to a second side of the body 20 opposite the first side 20 a .
  • the UAV 10 is configured so that a clearance, or unobstructed volume V 1 (hereinafter the “volume V 1 ”), extends between the feet 27 a , 27 b from the support plane P and upwardly to the displacement assembly 40 .
  • the volume V 1 is therefore open along the axis Z at the plane P, and along the axis X on either side of the feet 27 a , 27 b and on either side of the displacement assembly 40 .
  • This configuration of the UAV 10 therefore allows it to span the line 12 , that is to say, to be positioned relative to the line 12 so that the displacement assembly 40 rests on the line 12 while the feet 27 a , 27 b extend downward on either side of the line 12 .
  • the portion of the line 12 is suspended and can define a parabola between two support structures located on either side, the line 12 can be discretized into linear segments each extending along an axis L.
  • the UAV 10 can be positioned so that the axis U is oriented along the axis L, for example by resting on the line 12 via the displacement assembly 40 .
  • a cage 29 supported by the arms 23 surrounds the body 20 , thus forming a protective enclosure for maintaining a distance between the components of the UAV 10 located inside the cage 29 and the external environment.
  • the cage 29 is outside the volume V 1 , so that the line 12 and the component 11 can be received inside the volume V 1 near the body 20 .
  • the body 20 is not limited to the configuration described above and that other configurations for the body 20 are within the scope of the present disclosure.
  • the component 11 to be monitored can correspond to any structure of the line 12 , for example a portion of any conductive cable of the line 12 , whether it is energized or not.
  • the component 11 to which the UAV 10 is sent is a junction element of the line 12 .
  • the junction element is a sleeve M.
  • the sleeve M is provided with two opposite ends each having a connector 11 a provided to receive one end 11 b of a conductor cable C (hereinafter, the “cable C”) of the line 12 .
  • a first end 11 b of a first cable C of the line 12 extends along the axis L.
  • a first connector 11 a of the sleeve M has an elongated shape matching that of the first end 11 b.
  • the component 11 and the first cable C may both extend generally along the axis L
  • the component 11 may have surfaces whose position and/or orientation relative to the axis L vary locally.
  • One of the connectors 11 a may be eccentric with respect to the other and/or with respect to the axis L.
  • a portion M 5 of the sleeve M having one of the connectors 11 a may deviate with respect to the other connector 11 a and/or with respect to the axis L.
  • Such a plastic deviation can be expressed according to an angle at which a point of the deviated portion M 5 of the sleeve M is located with respect to a corresponding point of a portion of the sleeve M aligned with the axis L.
  • This deviation can occur, for example, when installing the sleeve M on the line 12 .
  • a hydraulic press could be used to assemble the ends 11 b of the cables C to the sleeve M. The pressure applied by the press can cause the portion M 5 of the sleeve M to deviate from the other portion of the sleeve M, as illustrated in FIG. 2B .
  • Such a deviation of the portion M 5 of the sleeve M will also lead to the deviation of the end 11 b of the cable C covered by the portion M 5 .
  • the tool 30 comprises two resistance measuring devices 32 , 34 , each of which is used to measure the electrical resistance of one of the components of the line 12 .
  • the resistance measuring devices 32 , 34 (sometimes referred to herein simply as “devices 32 , 34 ”) are supported respectively by the sleeve M and the cable C of the line 12 .
  • the devices 32 , 34 are adapted to be positioned at a distance from each other and in direct electrical contact with the component 11 so that the electrical resistance of the component 11 between the devices 32 , 34 can be measured via the tool 30 .
  • the devices 32 , 34 are connected to an elongated element 36 to form the tool 30 . It is moreover by means of the elongated element 36 that the tool 30 is joined to the positioning system 50 , which extends from the body 20 and from the outside of the first side 20 a of the body 20 . Thus mounted, the devices 32 , 34 are located on either side of the junction between the elongated element 36 and the positioning system 50 , while the tool 30 extends away from the first side 20 a of the body 20 .
  • the device 32 may therefore be referred to as “distal device 32 ,” while the device 34 may be referred to as “proximal device 34 .”
  • the elongated element 36 is telescopic and comprises an inner tubular element 36 a which is movable in and relative to an outer tubular element 36 b .
  • the inner and outer tubular elements 36 a , 36 b can be moved relative to each other to vary the distance between the devices 32 , 34 , in order to increase or decrease this distance.
  • the inner tubular element 36 a is attached to the distal device 32 and the outer tubular element 36 b is attached to the proximal device 34 .
  • the tool 30 is joined to the positioning system via the outer tubular element 36 b .
  • the elongated element 36 may comprise wires, rods or other links to provide an electrical connection between the devices 32 , 34 .
  • the elongated element 36 may also comprise a processor for measuring the electrical resistance with the devices 32 , 34 and for wirelessly communicating the measured electrical resistance of the component 11 .
  • Each of the devices 32 , 34 has an arcuate shape partially surrounding a corresponding space 32 a , 34 a .
  • the two devices 32 , 34 are each provided with a pair of arms 32 b , 34 b arranged on either side of the corresponding space 32 a , 34 a .
  • the devices 32 , 34 are arranged so that the spaces 32 a , 34 a are opposite and open in the same direction, so that the component 11 can be received by the spaces 32 a , 34 a in this direction.
  • the electrical contact with the component 11 can be established by each of the devices 32 , 34 via one or the other of the arms 32 b , 34 b .
  • a distance between the arms 32 b of the distal device 32 could be at least equal to the diameter of the sleeve M, while a distance between the arms 34 b of the proximal device 34 could be at least equal to the diameter of the cable C.
  • the tool 30 is used to monitor the condition of the cable C, the sleeve M and/or the junction between them, i.e. the condition of the component 11 . Although it is shown and described herein as being used primarily for diagnostic purposes, in other embodiments the tool 30 is used for interventions on the line 12 . These interventions include, but are not limited to, inspection, repair or maintenance tasks.
  • the tool 30 includes an ohmmeter and is used to measure the electrical resistance of the cable C, the sleeve M and/or the component 11 . The electrical resistance of the component 11 is determined by knowing or measuring the amperage of the cable C and then measuring the voltage drop due to the resistance of the component 11 (or any other component) being tested.
  • the electrical resistance of the component 11 which is generally expressed in ohm ( 0 ), is a measure of the difficulty in passing an electric current through this component 11 . If the component 11 generates a greater electrical resistance, this may indicate that the component 11 is physically damaged and therefore requires inspection for damage, repair or subsequent replacement.
  • the electrical resistance of the component 11 can also be used as an indicator of the state of physical degradation of the component 11 .
  • the tool 30 includes a device for determining the extent of the galvanic protection on the conductor 11 B and/or the component 11 .
  • the tool 30 includes an X-ray device for capturing images of the interior of the component 11 .
  • the tool 30 includes an abrasive element for rubbing against an exterior surface of the component 11 to remove a layer of debris, ice or degraded material therefrom. It will thus be understood that the tool 30 is not limited to the illustrated embodiment and that other types of tools 30 for monitoring the component 11 fall within the scope of the present disclosure.
  • the tool 30 can be moved relative to the body 20 .
  • the tool 30 can be moved vertically by means of the positioning system 50 , for example along the axis Z, between a first raised position and a second lowered position.
  • the tool 30 is also pivotable via the positioning system 50 from various positions between the raised position and the lowered position. This arrangement advantageously allows the tool 30 to follow a shape of the component 11 as the UAV 10 moves along the line 12 with the tool 30 .
  • the UAV 10 can be moved along the line 12 to move the tool 30 relative to the component 11 so that an orientation of the tool 30 relative to the body 20 of the UAV 10 is changed to achieve an orientation of the component 11 with respect to the line 12 .
  • the positioning system 50 is arranged on the body 20 so that the tool 30 is offset.
  • offset means that the tool 30 , in whole or in part, is offset along the axis X with respect to the first side 20 a of the body 20 , is offset to the displacement assembly 40 and/or is offset to the center of gravity 10 a of the UAV.
  • offset means that the tool 30 is offset to lie parallel to the axis L of the cable C with respect to the first side 20 a of the body 20 , with respect to the displacement assembly 40 and/or with respect to the center of gravity 10 a of the UAV.
  • This offset configuration of the tool 30 causes the tool 30 to move ahead of the body 20 and the displacement assembly 40 as the UAV 10 moves along the line 12 toward the component 11 , the body 20 being oriented so that the axis U is generally parallel to the axis L.
  • the entire tool 30 is offset from the first side 20 a of the body 20 , the proximal device 34 of the tool 30 being closer to the body 20 than the distal device 32 .
  • the tool 30 is raised relative to the displacement assembly 40 in the first position (shown at 30 a ).
  • the tool 30 is at the same vertical level as the displacement assembly 40 .
  • This configuration of the positioning system 50 makes it possible to adjust the vertical position of the tool 30 according to a vertical position of the component 11 relative to the axis L.
  • the displacement assembly 40 is mounted to the body 20 so as to allow a relative movement along the axis Z, and therefore to move the body 20 and the positioning system 50 away from the line 12 while the positioning assembly 40 is pressed on the line 12 .
  • the positioning system 50 therefore makes it possible to adjust the vertical position of the tool 30 to compensate for the distance of the body 20 relative to the displacement assembly 40 , that is to say, the distance of the body 20 relative to the axis U.
  • the positioning system 50 comprises a displacement module 60 provided with a first member 62 mounted to the body 20 and a second member 64 coupled to the first member 62 through an offset kinematic joint 54 , allowing the vertical displacement of the second member 64 relative to the first member 62 .
  • the positioning system 50 also comprises a tool holder 66 coupled to the second member 64 via a so-called distal joint 56 , allowing the tool holder 66 to pivot relative to the second member 64 according to one or more degrees of freedom, of which one of the degrees of freedom is shown schematically in FIG. 4 with an angle G.
  • the tool holder 66 (and the tool 30 that it supports) is therefore movable vertically with the second member 64 relative to the first member 62 , and pivotable relative to the second member 64 , while being offset relative to the center of gravity 10 a of the body 20 and relative to the displacement assembly 40 .
  • the positioning system 50 includes a support arm 52 extending longitudinally from the first side 20 a of the body 20 from a first end 52 a attached to the body 20 on its first side 20 a to a second end 52 b on the first side 20 a and remote from the body 20 .
  • the second end 52 b is fixed to the cage 29 .
  • the second end 52 b is free.
  • the first member 62 of the displacement module 60 is fixed to the support arm 52 away from the body 20 on its first side 20 a , so that the second member 64 is vertically movable with the tool holder 66 relative to the support arm 52 , at a distance from the body 20 on its first side 20 a .
  • the support arm 52 overhangs an unobstructed working volume V 2 of the UAV 10 (hereinafter, “working volume V 2 ”).
  • the support arm 52 defines an upper vertical limit of the working volume V 2 , which extends vertically to a lower vertical limit located closer to the axis U of the UAV 10 than to the support arm 52 .
  • the unobstructed working volume V 2 is positioned only on the side 20 a of the body 20 where the tool 30 is located.
  • the lower vertical limit of the working volume V 2 is located between the axis U and the support plane P.
  • the first member 62 of the displacement module 60 could be mounted differently, for example to a frame supporting the propulsion system 21 or even to a frame of the cage 29 .
  • the support arm 52 could then be omitted.
  • the first member 62 could also be mounted directly to the body 20 , in which case the second member 64 could have an elongated shape with one end joined to the first member 62 and a second offset end to which the tool holder 66 would be attached.
  • the displacement module 60 is configured such that the second member 64 is movable relative to the first member 62 , located at the upper vertical limit, in order to move the tool holder 66 to the lower vertical limit of the working volume V 2 .
  • the tool 30 is movable by means of the displacement module 60 to be brought closer to the axis U until one or the other of the devices 32 , 34 of the tool 30 comes into contact with the line 12 .
  • the offset kinematic joint 54 and the distal joint 56 cooperate so that the device 32 , 34 which has come into contact with the line 12 acts as a lever to pivot the tool 30 and the tool holder 66 relative to the second member 64 as the second member 64 is brought closer to the axis U, until the other device 32 , 34 also comes into contact with the line 12 .
  • the offset kinematic joint 54 is a prismatic joint with a single degree of freedom, that is to say, vertical translation along an axis parallel to the axis Z.
  • the offset kinematic joint 54 comprises a guideway, or slide 54 a , fixed to the support arm 52 and forming part of the first member 62 of the displacement module 60 , as well as a movable member, or crosshead 54 b , whose movement is constrained by the slide 54 a and forming part of the second member 64 .
  • the slide 54 a and the crosshead 54 b are present in two paired instances, forming a pair of joints arranged to block any rotation of the crosshead 54 b about the axis Z.
  • the offset kinematic joint 54 may, however, comprise a single slide 54 a and a single crosshead 54 b having complementary anti-rotational geometries.
  • the offset kinematic joint 54 is actuated by a motor 62 a of the first member 62 , located in a housing attached to the support arm 52 .
  • the motor 62 a which is electrically connected to the batteries 28 and electronically to the control unit of the UAV 10 , is provided with a shaft which can be driven in clockwise or anti-clockwise rotation along an axis having a component parallel to the axis X.
  • a connecting rod 62 b connecting the shaft of the motor 62 a to the crosshead 54 b makes it possible to transform the rotary movement of the motor 62 a into vertical movement of the second member 64 relative to the first member 62 .
  • the connecting rod 62 b is in extension, while the second member 64 and the tool holder 66 are in the raised position.
  • the connecting rod 62 b is in flexion, while the second member 64 and the tool holder 66 are in the lowered position.
  • FIG. 5B also shows that the slide 54 a is offset with respect to the support arm 52 along the axis Y, while the tool holder 66 is offset with respect to the crosshead 54 b in the reverse direction so that the tool 30 is located under the support arm 52 when mounted to the tool holder 66 .
  • This alignment of the tool holder 66 relative to the support arm 52 ensures that a force transmitted to the tool holder 66 along the axis X, for example due to friction or impacts encountered by the tool 30 while the tool 30 is moved by the UAV 10 along the line 12 , would not generate significant torque at the support arm 52 , and therefore at the body 20 , about the axis Z.
  • the motor 62 a which actuates the offset joint 54 allows the height of the tool 30 to be adjusted relative to the conductor C or to the sleeve M, and also allows the tool 30 to exert a pressure or contact force against the component to be monitored.
  • the distal joint 56 is a revolving joint comprising a stationary part 66 a fixed to the end of the crosshead 54 a and a pivotable and offset part 66 b , via which the tool 30 can be mounted.
  • the distal joint 56 is configured such that a pitching movement of the tool holder 66 with the tool 30 is possible, i.e. a pivoting movement about an axis having a component parallel to the axis Y.
  • the tool holder 66 is therefore pivotable at a pitch angle with respect to a standard orientation, which in this case is defined by the body 20 and parallel to the axes X and U.
  • the distal joint 56 allows the tool holder 66 to pivot relative to the second member 64 about an axis having a component parallel to the axis Z.
  • the distal joint 56 is therefore configured such that a first yawing movement of the tool holder 66 with the tool 30 is made possible.
  • the tool holder 66 is therefore pivotable at a first yaw angle with respect to the standard orientation.
  • the distal joint 56 allows the tool holder 66 , and therefore also the tool 30 , to pivot in a yawing movement and a pitching movement relative to the second member 64 .
  • the distal joint 56 comprises the revolving joint having the stationary part 66 a fixed to the end of the crosshead 54 b , referred to in such a case as a first joint 56 b of the distal joint 56 allowing the yawing movement.
  • the distal joint 56 comprises an intermediate part 66 c , which is pivotable with the pivotable part 66 b relative to the stationary part 66 a to generate the pitching movement, these parts 66 b , 66 c being able to be designated as a second joint 56 a of the distal joint 56 .
  • the intermediate part 66 c extends from the end of the crosshead 54 b to the pivotable part 66 b , in this case from below the end of the crosshead 54 b to below the pivotable part 66 b .
  • the pivotable part 66 b on which the tool 30 is mounted, is pivotable relative to the intermediate part 66 c along the axis having the component parallel to the axis Z to generate the first yawing movement at the tool holder 66 .
  • This structural configuration of the distal joint 56 is shown by way of example, while several variants are possible and can confer the adequate degrees of freedom to allow the pitching and/or yawing movements at the tool holder 66 .
  • the first and second joint 56 b , 56 a of the distal joint 56 can be replaced with a ball joint.
  • the positioning system 50 is provided with an orientation means 70 .
  • a guide 72 of the orientation means 70 is attached to the support arm 52 and cooperates with the tool 30 to force the latter to pivot to the standard orientation while the displacement module 60 raises the tool 30 toward the raised position.
  • the guide 72 is a structure of arcuate shape partially surrounding a cavity 72 a open downwards, provided with two arms 72 b arranged on either side of the cavity 72 a .
  • Each arm 72 b is provided with a surface 72 c extending from one end of the arm 72 b toward the cavity 72 a .
  • the surface 72 c is oriented so that the tool contacting the surface 72 c while oriented at the first yaw angle will be directed to the standard orientation as it slides toward the cavity 72 a along the surface 72 c , as shown in FIG. 6 .
  • the orientation means 70 also comprises a biasing means 74 , comprising a first attachment point 74 a linked to the second member 64 of the displacement module 60 , a second attachment point 74 b linked to the intermediate part 66 c of the distal joint 56 and a resilient element 74 c having two parts spaced apart from each other and respectively attached to one of the attachment points 74 a , 74 b .
  • the resilient element 74 c in this case is a helically shaped metal spring, but other types of resilient elements are possible.
  • the resilient element 74 c is configured such that reversible strain is induced in the resilient element 74 c as the pitch angle increases from the standard orientation, and in this case more particularly as a pitch motion elevates the distal device 32 vertically, creating tension in the resilient element 74 c .
  • Such a movement can occur in the presence of a vertical drop in the line 12 , for example when the distal device 32 is in contact with the first conductive cable C of the line 12 and is moved on the sleeve M of the line 12 , acting as a ramp forcing a pitching motion of sufficient magnitude for the distal device 32 to cross the drop between the cable C and the sleeve M. If the distal device 32 is removed from the sleeve M toward the cable C, the resilient element 74 c would be restored to its original shape, thus inducing a pitching movement returning the tool holder 66 and the tool 30 to the standard orientation.
  • the positioning system 50 comprises a proximal kinematic joint 58 .
  • the support arm 52 is configured in two parts. A first part 52 P 1 having the first end 52 a is mounted to the body 20 , while a second part 52 P 2 of the support arm 52 having the second end 52 b is pivotable relative to the first part 52 P 1 , through the proximal kinematic joint 58 between the two parts 52 P 1 , 52 P 2 of the support arm 52 .
  • the proximal kinematic joint 58 corresponds in this case to a revolving joint.
  • the second end 52 b is free and can move freely in the configuration of FIGS.
  • the second part 52 P 2 of the support arm 52 is therefore pivotable above the working volume V 2 and about an axis having a component parallel to the axis Z. Since the displacement module 60 is mounted to the second portion 52 P 2 of the support arm 52 , the proximal kinematic joint 58 is configured such that a second yawing motion of the tool holder 66 with the tool 30 is made possible by the pivoting of the second part 52 P 2 of the support arm 52 . The tool holder 66 is therefore pivotable at a second yaw angle with respect to the standard orientation.
  • the orientation means 70 comprises a so-called proximal biasing means 76 .
  • This proximal biasing means 76 comprises a first attachment point 76 a linked to the first part 52 P 1 of the support arm 52 , a second attachment point 76 b linked to the second part 52 P 2 of the support arm 52 and a resilient element 76 c having two parts spaced apart from each other and respectively attached to one of the attachment points 76 a , 76 b .
  • the resilient element 76 c is in this case a metallic coil spring, but other types of resilient elements are possible.
  • the proximal biasing means 76 is configured such that reversible strain is induced in the resilient element 76 c as the second yaw angle increases from the standard orientation, causing tension in the resilient element 76 c .
  • Such a movement can occur in the presence of a horizontal deviation in the line 12 , for example when the distal device 32 in contact with the first conductive cable C of the line 12 is moved on the sleeve M of the line 12 , acting as a ramp forcing a yawing motion of sufficient magnitude for the distal device 32 to cross the deviation between the cable C and the sleeve M. If the distal device 32 is removed from the sleeve M toward the cable C, the resilient element 76 c would be restored to its original shape, thus inducing a yawing movement returning the tool holder 66 and the tool 30 to the standard orientation.
  • one or the other of the components of the orientation means 70 may be arranged differently or even be omitted.
  • the motor 62 a is provided with a shaft which can be driven in clockwise or counterclockwise rotation about an axis having a component parallel to the axis Z.
  • a screw 62 c arranged on the crosshead 54 b is received by a nut 62 d arranged on the slide 54 a , the nut 62 d being blocked in translation but free to rotate about an axis parallel to that of the motor 62 a .
  • a belt 62 e connecting the shaft of the motor 62 a to the nut 62 d makes it possible to transform the rotary movement of the motor 62 a into vertical movement of the second member 64 relative to the first member 62 .
  • FIGS. 7A and 7B illustrate some of the positions of the tool 30 made possible by the joints 54 , 56 , 58 .
  • the standard orientation, shown at O, and the ranges of yawing movement relative to the standard orientation O are shown at ⁇ 1 (including the first yaw angle of the intermediate part 66 c of the tool holder 66 relative to the second member 64 of the displacement module 60 ) and ⁇ 2 (including the second yaw angle of the second part 52 P 2 of the support arm 52 relative to the first part 52 P 1 of the support arm 52 ) respectively.
  • ⁇ 1 including the first yaw angle of the intermediate part 66 c of the tool holder 66 relative to the second member 64 of the displacement module 60
  • ⁇ 2 including the second yaw angle of the second part 52 P 2 of the support arm 52 relative to the first part 52 P 1 of the support arm 52
  • FIG. 7B illustrates a position of the tool 30 following yawing movements at the proximal 58 and distal 56 joints generated as the orientation of the tool 30 conforms to a deviation of the sleeve M and the line 12 , and as the UAV 10 is supported by the line 12 by means of the displacement assembly 40 .
  • the alignment of the tool 30 and its ability to conform with the alignment of the line 12 or of the component to be monitored occur passively.
  • the joints 54 , 56 , 58 allow a rotational adjustment of the passive tool 30 , which is triggered when the tool 30 is moved by the positioning system 50 to contact the component. This passive rotary adjustment of the tool 30 requires no application of force or other intervention by the positioning system 50 .
  • FIG. 8 is a schematic illustration of a kinetic chain of the UAV 10 and of various components thereof, the modalities of which may differ depending on the embodiment.
  • the axis X is parallel to the axis U and they are perpendicular to the same vertical plane.
  • a vertical distance D 1 between the axes X and U may vary from one embodiment to another, and may be variable in certain embodiments.
  • a variation in the distance D 1 can correspond to a relative movement between the support arm 52 and the displacement assembly 40 , and by a vertical displacement of the center of gravity 10 a of the UAV 10 .
  • the distance D 1 can be set so that the vertical position of the center of gravity 10 a promotes the balance of the UAV 10 with respect to the axis U, for example when the UAV 10 is supported on the line 12 by means of the displacement assembly 40 .
  • the offset kinematic joint 54 is located at a horizontal distance D 2 from the first side 20 a of the body 20 along the axis X.
  • the distance D 2 can for example be the distance, along the axis X and the support arm 52 , from the first side 20 a to the positioning system 50 via which the tool 30 is mounted on the body 20 .
  • the distance D 2 can for example be established as a function of the length of the tool 30 , or the dimension between the devices 32 , 34 .
  • the distal device 32 is located at a horizontal distance D 3 from the offset joint 54 . Considering that the configuration of the tool 30 shown in FIG.
  • the distance D 3 can be varied manually, or automatically by means of a displacement module suitably arranged with the inner and outer tubular elements 36 a , 36 b of the tool 30 .
  • the distance D 3 can be established so that the distal device 32 can be positioned outside the working volume V 2 , for example beyond the perimeter defined by the cage 39 .
  • the distance D 3 has a value of zero.
  • the offset joint 54 is configured to cause a vertical displacement of the tool holder 66 over a distance D 4 .
  • the distance D 4 can be set, for example, so that the tool 30 can travel at least to the axis U in the lowered position.
  • the distance D 4 can be set, for example, so that the tool 30 can go at least to the axis L of the line 12 in the lowered position.
  • the distal joint 56 when present, can be moved vertically from a position offset along the axis X, by means of the offset joint 54 .
  • the distal joint 56 allows the tool 30 to pivot relative to the second member 64 along an axis having a component parallel to the axis Z.
  • the distal joint 56 comprises the first joint 56 b allowing the yawing movement.
  • the tool 30 is therefore pivotable at the first yaw angle ⁇ 1 with respect to the standard orientation O.
  • the distal joint 56 also allows a pitching movement.
  • the distal joint 56 comprises the second joint 56 a , which is pivotable with the pivotable part 66 b relative to the stationary part 66 a to generate the pitching movement according to the angle ⁇ .
  • the tool 30 is therefore pivotable at a pitch angle ⁇ with respect to the standard orientation O.
  • the distal joint 56 is located at a vertical position when the offset joint 54 is in the raised position.
  • a non-zero horizontal distance D 5 is defined between them indicating that the axis of the first yaw angle is offset in a direction parallel to the axis Y of the first part 52 P 1 of the support arm 52 .
  • the axes of rotation of the first and second joints 56 a , 56 b intersect at a point, allowing the tool 30 to self-orient to better couple with the conductor C or the sleeve M.
  • the proximal joint 58 when present, is located between the offset joint 54 and the first side 20 a of the body 20 , at a distance D 6 along the axis X from the first side 20 a .
  • the first end 52 a of the first part 52 P 1 support arm 52 is mounted to the first side 20 a of the body 20 , while the second end 52 b is pivotable relative to the first part 52 P 1 , by means of the proximal kinematic joint 58 .
  • the proximal joint 58 allows the second part 52 P 2 of the support arm 52 , and therefore the tool 30 supported indirectly by the second part 52 P 2 , to pivot at the second yaw angle ⁇ 2 relative to the first part 52 P 1 of the support arm 52 and the body 20 .
  • the axes of rotation around which the first and second yaw angles ⁇ 1 , ⁇ 2 are defined are parallel and are distanced from each other, thus making it possible to offset the tool 30 in parallel to improve its alignment with the conductor C or with the sleeve M. Referring to FIG. 8 , the axis of the vertical translational movement defined by the offset joint 54 is parallel to the axis of rotation defined by the proximal joint 58 .
  • the axis of rotation of the first joint 56 b can also be parallel to the axis of rotation of the proximal joint 58 , thus allowing a parallel offset of the tool 30 on the side 20 a of the body 20 .
  • the distance D 5 is zero
  • the axis of the vertical translational movement defined by the offset joint 54 and the axes of rotation of the first and second joints 56 a , 56 b intersect at a point.
  • the axis of the vertical translational movement defined by the offset joint 54 is positioned elsewhere at a distance from the first and second joints 56 a , 56 b in another possible embodiment.
  • the positioning system 50 and its possible degrees of freedom which are shown in FIG. 8 allow passive adjustment of the tool 30 so that it aligns better with the component 11 to be monitored.
  • the positioning system 50 which comprises the joints 54 , 56 , 58 , the positioning system 50 defines or comprises the following four degrees of freedom: three rotary degrees of freedom allowing the tool 30 to move and to orient itself with respect to the body 20 according to the first and second yaw angles ⁇ 1 , ⁇ 2 and according to the pitch angle ⁇ , and another degree of translational freedom allowing the tool 30 to move vertically with respect to the body 20 .
  • the order of the degrees of freedom from the body 20 of the vehicle 10 is as follows: 1) a rotary degree of freedom at the second yaw angle ⁇ 2 , 2) a translational degree of freedom defined by the offset joint 54 , 3) a rotary degree of freedom at the first yaw angle ⁇ 1 , and 4) a rotary degree of freedom at the pitch angle ⁇ .
  • the four degrees of freedom which form the kinetic chain of the positioning system 50 between the body 20 of the vehicle 10 and the tool 30 are composed of three rotary joints (e.g. the joints 56 a , 56 b , 58 ) and a prismatic joint (e.g. the offset joint 54 ).

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  • Manufacturing & Machinery (AREA)
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Abstract

A tool positioning system of an unmanned aerial vehicle that is mountable relative to a power line to monitor a component of the line. The tool positioning system includes a displacement module having a first member mountable to one side of a body of the unmanned aerial vehicle, a second member movable vertically relative to the first member on the side of the body, and a tool holder pivotably coupled to the second member and couplable to a tool. The tool holder is movable relative to the body to mount the tool to or around the component.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of U.S. patent application Ser. No. 16/347,835, which is a national phase entry under 35 USC 371 of international patent application PCT/CA2017/051385 filed on Nov. 21, 2017, which claims priority to U.S. provisional patent application 62/425,235 filed on Nov. 22, 2016. This application claims priority to Canadian patent application filed Apr. 30, 2021 and entitled “DRONE AVEC SYSTEME DE POSITIONNEMENT D'OUTIL”, whose application number has not yet been assigned. Reference is made to international patent application with application number PCT/CA2017/051157 and filed on Sep. 29, 2017. The entire contents of all of the preceding patent applications listed above are incorporated by reference herein.
  • TECHNICAL FIELD
  • The application relates generally to power lines and, more particularly, relates to an apparatus and a method for inspecting components thereof.
  • BACKGROUND
  • The operation of power lines requires inspecting or monitoring power line components. Some conventional so-called indirect inspection techniques comprise observation using a visual or infrared camera. These techniques may be inadequate for detecting the existence of damage or wear to a component, particularly within it. Most of the alternatives which make it possible to characterize the interior of the components prove to be tedious, expensive and/or even destructive, in particular when it comes to sampling the component for ex situ analysis. Some of the more penetrating techniques involve the use of particularly cumbersome electromagnetic radiation apparatuses.
  • The use of a robot equipped with the inspection equipment and controlled remotely can prove to be advantageous for the implementation of certain techniques. Whether it is a robot designed to bear and move directly on the line and/or an airborne-type robot, establishing and maintaining an adequate position of the inspection equipment relative to the targeted component can be arduous or even impossible.
  • SUMMARY
  • There is disclosed an unmanned aerial vehicle mountable relative to a power line for monitoring a component of the line, the unmanned aerial vehicle comprising: a body having sides and a propulsion system to lift, lower and navigate the vehicle relative to the line; a tool positioning system including a displacement module having a first member mounted to the body, a second member movable vertically relative to the first member, and a tool holder pivotably coupled to the second member; and a monitoring tool mountable to the tool holder to be positioned remotely from the body on one side of the sides of the body and to be movable with the tool holder relative to the body for mounting to or around the component.
  • There is disclosed a method of positioning an unmanned aerial vehicle relative to a component of a power line, the method comprising: landing a body of the vehicle on the line with a side of the body at a distance from the component of the line; and moving a component monitoring tool relative to the side of the body in a vertical direction along the side of the body to mount the monitoring tool to or around the component.
  • There is disclosed a tool positioning system of an unmanned aerial vehicle mountable relative to a power line to monitor a component of the line, the tool positioning system comprising: a displacement module having a first member mountable to one side of a body of the unmanned aerial vehicle, a second member movable vertically relative to the first member on the side of the body, and a tool holder pivotably coupled to the second member and couplable to a tool, the tool holder being movable relative to the body to mount the tool to or around the component.
  • DESCRIPTION OF THE DRAWINGS
  • Reference is now made to the accompanying figures, in which:
  • FIG. 1 is a perspective view of an unmanned aerial vehicle, the vehicle mounted on a power line near a component of the line;
  • FIG. 2A is a side cross-sectional view of a portion of the power line of FIG. 1 including the component of FIG. 1;
  • FIG. 2B is a side cross-sectional view of a portion of the power line of FIG. 1 with a component;
  • FIG. 3 is an enlarged perspective view of a component monitoring tool of FIG. 1, shown in contact with the portion of the power line of FIG. 2A;
  • FIG. 4 is a side view of the unmanned aerial vehicle of FIG. 1, showing a vertical displacement range of a tool positioning system of the vehicle;
  • FIG. 5A is a perspective view of the tool positioning system of the vehicle of FIG. 4, a tool holder of the tool positioning system being shown in a first vertical position;
  • FIG. 5B is a perspective view of the tool positioning system of the vehicle of FIG. 4, the tool holder of the tool positioning system being shown in a second vertical position;
  • FIG. 6 is a perspective view of another configuration of an unmanned aerial vehicle;
  • FIG. 6A is another perspective view of a portion of the unmanned aerial vehicle of FIG. 6;
  • FIG. 7A is a top view of the vehicle of FIG. 6, showing a tool holder and a support arm of a tool positioning system of the vehicle respectively pivoted by a first angle and by a second angle with respect to a body of the vehicle;
  • FIG. 7B is a top view of the vehicle of FIG. 6, showing the tool holder and the support arm respectively pivoted relative to the body of the vehicle; and
  • FIG. 8 is a schematic illustration of a kinematic chain for a tool positioning system of an unmanned aerial vehicle.
  • DETAILED DESCRIPTION
  • FIG. 1 illustrates an unmanned aerial vehicle 10 (sometimes referred to herein as a “drone,” or simply “UAV 10”). The UAV 10 is used to inspect an electrical component 11 (hereinafter “component 11”) of an electrical line 12. The electrical line 12 can take several forms and comprises all the different types of aerial lines in the field of transmitting an electric current. The electrical line 12 is therefore sometimes referred to in the present description simply as “the line 12.” By way of example and with reference to FIG. 1, the electrical line 12 is an aerial electricity transmission line. The component 11 is located on a portion of the line 12 suspended at a distance from the ground. As described in more detail below, the UAV 10 can be positioned close to the component 11, while an operator of the UAV 10 can be at a safe distance from the line 12, such as on the ground below the line 12. Various communication modes can be used for UAV 10 control purposes. For example, communication via cellular or satellite network may allow control of the UAV 10 by an off-site operator. The use of the UAV 10 to monitor the component 11 of the line 12 may be advantageous when it is situated in a location to which sending personnel would require specialized transportation means, such as a helicopter.
  • The UAV 10 comprises a body 20, a monitoring tool 30 mounted to the body 20, a displacement assembly 40 for displacing the UAV 10 relative to the line 12, and a positioning system 50 through which the monitoring tool 30 is mounted to the body and which allows the monitoring tool 30 to be displaced relative to the body 20.
  • The body 20 is a structural component of the UAV 10 which is intended to support, contain and/or interconnect various members or components of the UAV 10. The body 20 can assume any suitable shape to achieve such a functionality. The body 20 comprises a propulsion system 21 in order to provide lift and/or thrust to the UAV 10 for aerial displacement (or aerial navigation) purposes controllable via a control unit of the UAV 10. In FIG. 1, the body 20 comprises a housing 22 which contains the control unit of the UAV 10. The control unit exchanges with a remote computer for the transmission of data acquired by the UAV 10 and the reception of instructions transmitted for example selectively by the operator and/or in an automated manner via the computer. The control unit comprises a processor which executes algorithms to aid in the operation of the UAV 10, for example by processing the received data and the data intended to be transmitted. In other embodiments, the control unit can operate according to autonomous flight instructions stored in memory located within the UAV 10 itself. Arms 23 of the body 20 extend outward from the housing 22 to rotor assemblies 24 of the propulsion system 21. Each of the rotor assemblies 24 includes a propeller 24 a and an electric motor 24 b for driving the propeller 24 a. The control unit communicates with and coordinates the rotor assemblies 24 to generate lift for the UAV 10 and to maneuver it in flight in response to remote control instructions provided by the operator. Several components are envisaged to assist in the navigation of the UAV 10, for example a visual camera, a lidar system (“light detection and ranging”) or other suitable system to provide an indication of the position of the UAV 10 in relation to its environment, such as the line 12 and its components 11. This feedback is communicated by the control unit to the technician and helps the technician steer the UAV 10 relative to the line 12.
  • A landing gear 25 is mounted to the body 20 via the arms 23 and extends vertically downward relative to the body 20. The landing gear 25 comprises a base 27 defining a support plane P. The base 27 makes it possible to support the weight of the body 20 and of the other components of the UAV 10 when the base 27 is positioned on flat and horizontal ground so that the support plane P is parallel to the ground. The base 27 is configured to form two parts respectively on either side of a longitudinal axis U of the UAV 10, i.e. two feet 27 a, 27 b spaced apart from one another. It should be noted here that a three-dimensional axis system specific to the UAV 10 is defined by an axis X parallel to the axis U and perpendicular to a first side 20 a of the body 20, an axis Z parallel to a direction normal to the support plane P, and an axis Y orthogonal to the axes X and Z. Batteries 28 of the UAV 10 are installed on the landing gear 25 adjacent to the feet 27 a, 27 b. This positioning of the batteries 28 allows the mass of the UAV 10 to be distributed so that a center of gravity 10 a of the UAV 10 is lowered relative to the body 20. The center of gravity 10 a of the UAV 10 thus lowered gives the UAV 10 improved stability and balance when it is not supported horizontally, for example when it is resting on the line 12.
  • The displacement assembly 40 of the UAV 10 is located under the body 20 between the feet 27 a, 27 b, and defines the axis U. In FIG. 1, the displacement assembly 40 comprises rolling elements 42 connected to the body 20 in a pivotable manner, located one after the other and respectively near the first side 20 a of the body 20 and close to a second side of the body 20 opposite the first side 20 a. The UAV 10 is configured so that a clearance, or unobstructed volume V1 (hereinafter the “volume V1”), extends between the feet 27 a, 27 b from the support plane P and upwardly to the displacement assembly 40. The volume V1 is therefore open along the axis Z at the plane P, and along the axis X on either side of the feet 27 a, 27 b and on either side of the displacement assembly 40. This configuration of the UAV 10 therefore allows it to span the line 12, that is to say, to be positioned relative to the line 12 so that the displacement assembly 40 rests on the line 12 while the feet 27 a, 27 b extend downward on either side of the line 12. Although the portion of the line 12 is suspended and can define a parabola between two support structures located on either side, the line 12 can be discretized into linear segments each extending along an axis L. The UAV 10 can be positioned so that the axis U is oriented along the axis L, for example by resting on the line 12 via the displacement assembly 40. A cage 29 supported by the arms 23 surrounds the body 20, thus forming a protective enclosure for maintaining a distance between the components of the UAV 10 located inside the cage 29 and the external environment. The cage 29 is outside the volume V1, so that the line 12 and the component 11 can be received inside the volume V1 near the body 20. It will be understood that the body 20 is not limited to the configuration described above and that other configurations for the body 20 are within the scope of the present disclosure. The component 11 to be monitored can correspond to any structure of the line 12, for example a portion of any conductive cable of the line 12, whether it is energized or not. In the illustrated example, the component 11 to which the UAV 10 is sent is a junction element of the line 12. In one of its many possible forms, the junction element is a sleeve M.
  • In FIG. 2A, it can be seen that the sleeve M is provided with two opposite ends each having a connector 11 a provided to receive one end 11 b of a conductor cable C (hereinafter, the “cable C”) of the line 12. A first end 11 b of a first cable C of the line 12 extends along the axis L. A first connector 11 a of the sleeve M has an elongated shape matching that of the first end 11 b.
  • Referring to FIG. 2B, although the component 11 and the first cable C may both extend generally along the axis L, the component 11 may have surfaces whose position and/or orientation relative to the axis L vary locally. One of the connectors 11 a may be eccentric with respect to the other and/or with respect to the axis L. In some cases, a portion M5 of the sleeve M having one of the connectors 11 a may deviate with respect to the other connector 11 a and/or with respect to the axis L. Such a plastic deviation can be expressed according to an angle at which a point of the deviated portion M5 of the sleeve M is located with respect to a corresponding point of a portion of the sleeve M aligned with the axis L. This deviation can occur, for example, when installing the sleeve M on the line 12. Indeed, a hydraulic press could be used to assemble the ends 11 b of the cables C to the sleeve M. The pressure applied by the press can cause the portion M5 of the sleeve M to deviate from the other portion of the sleeve M, as illustrated in FIG. 2B. Such a deviation of the portion M5 of the sleeve M will also lead to the deviation of the end 11 b of the cable C covered by the portion M5.
  • Referring to FIG. 3, the monitoring tool 30 (sometimes referred to herein simply as “tool 30”) will now be described in more detail. The tool 30 comprises two resistance measuring devices 32, 34, each of which is used to measure the electrical resistance of one of the components of the line 12. The resistance measuring devices 32, 34 (sometimes referred to herein simply as “ devices 32, 34”) are supported respectively by the sleeve M and the cable C of the line 12. As will be explained in more detail below, the devices 32, 34 are adapted to be positioned at a distance from each other and in direct electrical contact with the component 11 so that the electrical resistance of the component 11 between the devices 32, 34 can be measured via the tool 30.
  • In FIG. 3, the devices 32, 34 are connected to an elongated element 36 to form the tool 30. It is moreover by means of the elongated element 36 that the tool 30 is joined to the positioning system 50, which extends from the body 20 and from the outside of the first side 20 a of the body 20. Thus mounted, the devices 32, 34 are located on either side of the junction between the elongated element 36 and the positioning system 50, while the tool 30 extends away from the first side 20 a of the body 20. The device 32 may therefore be referred to as “distal device 32,” while the device 34 may be referred to as “proximal device 34.” The elongated element 36 is telescopic and comprises an inner tubular element 36 a which is movable in and relative to an outer tubular element 36 b. The inner and outer tubular elements 36 a, 36 b can be moved relative to each other to vary the distance between the devices 32, 34, in order to increase or decrease this distance. In one possible configuration of the tool 30, the inner tubular element 36 a is attached to the distal device 32 and the outer tubular element 36 b is attached to the proximal device 34. The tool 30 is joined to the positioning system via the outer tubular element 36 b. The elongated element 36 may comprise wires, rods or other links to provide an electrical connection between the devices 32, 34. The elongated element 36 may also comprise a processor for measuring the electrical resistance with the devices 32, 34 and for wirelessly communicating the measured electrical resistance of the component 11.
  • Each of the devices 32, 34 has an arcuate shape partially surrounding a corresponding space 32 a, 34 a. In this embodiment, the two devices 32, 34 are each provided with a pair of arms 32 b, 34 b arranged on either side of the corresponding space 32 a, 34 a. The devices 32, 34 are arranged so that the spaces 32 a, 34 a are opposite and open in the same direction, so that the component 11 can be received by the spaces 32 a, 34 a in this direction. Once the component 11 has been received by said spaces 32 a, 34 b, the electrical contact with the component 11 can be established by each of the devices 32, 34 via one or the other of the arms 32 b, 34 b. A distance between the arms 32 b of the distal device 32 could be at least equal to the diameter of the sleeve M, while a distance between the arms 34 b of the proximal device 34 could be at least equal to the diameter of the cable C.
  • The tool 30 is used to monitor the condition of the cable C, the sleeve M and/or the junction between them, i.e. the condition of the component 11. Although it is shown and described herein as being used primarily for diagnostic purposes, in other embodiments the tool 30 is used for interventions on the line 12. These interventions include, but are not limited to, inspection, repair or maintenance tasks. In the illustrated embodiment, the tool 30 includes an ohmmeter and is used to measure the electrical resistance of the cable C, the sleeve M and/or the component 11. The electrical resistance of the component 11 is determined by knowing or measuring the amperage of the cable C and then measuring the voltage drop due to the resistance of the component 11 (or any other component) being tested. It will be understood that the electrical resistance of the component 11, which is generally expressed in ohm (0), is a measure of the difficulty in passing an electric current through this component 11. If the component 11 generates a greater electrical resistance, this may indicate that the component 11 is physically damaged and therefore requires inspection for damage, repair or subsequent replacement. The electrical resistance of the component 11 can also be used as an indicator of the state of physical degradation of the component 11. In another embodiment, the tool 30 includes a device for determining the extent of the galvanic protection on the conductor 11B and/or the component 11. In another embodiment, the tool 30 includes an X-ray device for capturing images of the interior of the component 11. In yet another embodiment, the tool 30 includes an abrasive element for rubbing against an exterior surface of the component 11 to remove a layer of debris, ice or degraded material therefrom. It will thus be understood that the tool 30 is not limited to the illustrated embodiment and that other types of tools 30 for monitoring the component 11 fall within the scope of the present disclosure.
  • As will be described in more detail below, the tool 30 can be moved relative to the body 20. In particular, the tool 30 can be moved vertically by means of the positioning system 50, for example along the axis Z, between a first raised position and a second lowered position. This makes it possible, inter alia, to move the UAV 10 along the line 12 toward the component 11 until the tool 30 is close to the component 11, without the movement of the UAV 10 being impeded by either the displacement assembly 40, or the tool 30. The tool 30 is also pivotable via the positioning system 50 from various positions between the raised position and the lowered position. This arrangement advantageously allows the tool 30 to follow a shape of the component 11 as the UAV 10 moves along the line 12 with the tool 30. In other words, the UAV 10 can be moved along the line 12 to move the tool 30 relative to the component 11 so that an orientation of the tool 30 relative to the body 20 of the UAV 10 is changed to achieve an orientation of the component 11 with respect to the line 12.
  • The positioning system 50 is arranged on the body 20 so that the tool 30 is offset. The term “offset” means that the tool 30, in whole or in part, is offset along the axis X with respect to the first side 20 a of the body 20, is offset to the displacement assembly 40 and/or is offset to the center of gravity 10 a of the UAV. The term “offset” means that the tool 30 is offset to lie parallel to the axis L of the cable C with respect to the first side 20 a of the body 20, with respect to the displacement assembly 40 and/or with respect to the center of gravity 10 a of the UAV. This offset configuration of the tool 30 causes the tool 30 to move ahead of the body 20 and the displacement assembly 40 as the UAV 10 moves along the line 12 toward the component 11, the body 20 being oriented so that the axis U is generally parallel to the axis L.
  • In FIG. 4, the entire tool 30 is offset from the first side 20 a of the body 20, the proximal device 34 of the tool 30 being closer to the body 20 than the distal device 32. The tool 30 is raised relative to the displacement assembly 40 in the first position (shown at 30 a). In the second position (shown at 30 b in dotted lines), the tool 30 is at the same vertical level as the displacement assembly 40. This configuration of the positioning system 50 makes it possible to adjust the vertical position of the tool 30 according to a vertical position of the component 11 relative to the axis L. In some embodiments, the displacement assembly 40 is mounted to the body 20 so as to allow a relative movement along the axis Z, and therefore to move the body 20 and the positioning system 50 away from the line 12 while the positioning assembly 40 is pressed on the line 12. The positioning system 50 therefore makes it possible to adjust the vertical position of the tool 30 to compensate for the distance of the body 20 relative to the displacement assembly 40, that is to say, the distance of the body 20 relative to the axis U.
  • Referring to FIG. 4, the positioning system 50 comprises a displacement module 60 provided with a first member 62 mounted to the body 20 and a second member 64 coupled to the first member 62 through an offset kinematic joint 54, allowing the vertical displacement of the second member 64 relative to the first member 62. The positioning system 50 also comprises a tool holder 66 coupled to the second member 64 via a so-called distal joint 56, allowing the tool holder 66 to pivot relative to the second member 64 according to one or more degrees of freedom, of which one of the degrees of freedom is shown schematically in FIG. 4 with an angle G. The tool holder 66 (and the tool 30 that it supports) is therefore movable vertically with the second member 64 relative to the first member 62, and pivotable relative to the second member 64, while being offset relative to the center of gravity 10 a of the body 20 and relative to the displacement assembly 40.
  • Several configurations of the positioning system 50 are possible to achieve this functionality. By way of example, and with reference to FIG. 4, the positioning system 50 includes a support arm 52 extending longitudinally from the first side 20 a of the body 20 from a first end 52 a attached to the body 20 on its first side 20 a to a second end 52 b on the first side 20 a and remote from the body 20. The second end 52 b is fixed to the cage 29. In other possible configurations, the second end 52 b is free. The first member 62 of the displacement module 60 is fixed to the support arm 52 away from the body 20 on its first side 20 a, so that the second member 64 is vertically movable with the tool holder 66 relative to the support arm 52, at a distance from the body 20 on its first side 20 a. The support arm 52 overhangs an unobstructed working volume V2 of the UAV 10 (hereinafter, “working volume V2”). The support arm 52 defines an upper vertical limit of the working volume V2, which extends vertically to a lower vertical limit located closer to the axis U of the UAV 10 than to the support arm 52. The unobstructed working volume V2 is positioned only on the side 20 a of the body 20 where the tool 30 is located. In some embodiments, the lower vertical limit of the working volume V2 is located between the axis U and the support plane P. Alternatively, the first member 62 of the displacement module 60 could be mounted differently, for example to a frame supporting the propulsion system 21 or even to a frame of the cage 29. The support arm 52 could then be omitted. The first member 62 could also be mounted directly to the body 20, in which case the second member 64 could have an elongated shape with one end joined to the first member 62 and a second offset end to which the tool holder 66 would be attached.
  • Referring to FIG. 4, the displacement module 60 is configured such that the second member 64 is movable relative to the first member 62, located at the upper vertical limit, in order to move the tool holder 66 to the lower vertical limit of the working volume V2. Thus, once the tool 30 is mounted on the tool holder 66 and the UAV 10 is placed on the line 12, the tool 30 is movable by means of the displacement module 60 to be brought closer to the axis U until one or the other of the devices 32, 34 of the tool 30 comes into contact with the line 12. In the event that only one of the two devices 32, 34 comes into contact with the line 12, the offset kinematic joint 54 and the distal joint 56 cooperate so that the device 32, 34 which has come into contact with the line 12 acts as a lever to pivot the tool 30 and the tool holder 66 relative to the second member 64 as the second member 64 is brought closer to the axis U, until the other device 32, 34 also comes into contact with the line 12.
  • The displacement module 60 and the joints 54, 56 will now be described in more detail, while reference will be made to FIGS. 5A and 5B. The offset kinematic joint 54 is a prismatic joint with a single degree of freedom, that is to say, vertical translation along an axis parallel to the axis Z. In this embodiment, the offset kinematic joint 54 comprises a guideway, or slide 54 a, fixed to the support arm 52 and forming part of the first member 62 of the displacement module 60, as well as a movable member, or crosshead 54 b, whose movement is constrained by the slide 54 a and forming part of the second member 64. In this embodiment, the slide 54 a and the crosshead 54 b are present in two paired instances, forming a pair of joints arranged to block any rotation of the crosshead 54 b about the axis Z. The offset kinematic joint 54 may, however, comprise a single slide 54 a and a single crosshead 54 b having complementary anti-rotational geometries.
  • Referring to FIGS. 5A and 5B, the offset kinematic joint 54 is actuated by a motor 62 a of the first member 62, located in a housing attached to the support arm 52. The motor 62 a, which is electrically connected to the batteries 28 and electronically to the control unit of the UAV 10, is provided with a shaft which can be driven in clockwise or anti-clockwise rotation along an axis having a component parallel to the axis X. A connecting rod 62 b connecting the shaft of the motor 62 a to the crosshead 54 b makes it possible to transform the rotary movement of the motor 62 a into vertical movement of the second member 64 relative to the first member 62. In FIG. 5A, the connecting rod 62 b is in extension, while the second member 64 and the tool holder 66 are in the raised position. In FIG. 5B, the connecting rod 62 b is in flexion, while the second member 64 and the tool holder 66 are in the lowered position. FIG. 5B also shows that the slide 54 a is offset with respect to the support arm 52 along the axis Y, while the tool holder 66 is offset with respect to the crosshead 54 b in the reverse direction so that the tool 30 is located under the support arm 52 when mounted to the tool holder 66. This alignment of the tool holder 66 relative to the support arm 52 ensures that a force transmitted to the tool holder 66 along the axis X, for example due to friction or impacts encountered by the tool 30 while the tool 30 is moved by the UAV 10 along the line 12, would not generate significant torque at the support arm 52, and therefore at the body 20, about the axis Z. The motor 62 a which actuates the offset joint 54 allows the height of the tool 30 to be adjusted relative to the conductor C or to the sleeve M, and also allows the tool 30 to exert a pressure or contact force against the component to be monitored.
  • Referring to FIG. 6, the distal joint 56 is a revolving joint comprising a stationary part 66 a fixed to the end of the crosshead 54 a and a pivotable and offset part 66 b, via which the tool 30 can be mounted. The distal joint 56 is configured such that a pitching movement of the tool holder 66 with the tool 30 is possible, i.e. a pivoting movement about an axis having a component parallel to the axis Y. The tool holder 66 is therefore pivotable at a pitch angle with respect to a standard orientation, which in this case is defined by the body 20 and parallel to the axes X and U.
  • Referring to FIGS. 6 and 6A, another embodiment of the present technology is shown and will be described below. The distal joint 56 allows the tool holder 66 to pivot relative to the second member 64 about an axis having a component parallel to the axis Z. The distal joint 56 is therefore configured such that a first yawing movement of the tool holder 66 with the tool 30 is made possible. The tool holder 66 is therefore pivotable at a first yaw angle with respect to the standard orientation. In this embodiment, the distal joint 56 allows the tool holder 66, and therefore also the tool 30, to pivot in a yawing movement and a pitching movement relative to the second member 64. The distal joint 56 comprises the revolving joint having the stationary part 66 a fixed to the end of the crosshead 54 b, referred to in such a case as a first joint 56 b of the distal joint 56 allowing the yawing movement. The distal joint 56 comprises an intermediate part 66 c, which is pivotable with the pivotable part 66 b relative to the stationary part 66 a to generate the pitching movement, these parts 66 b, 66 c being able to be designated as a second joint 56 a of the distal joint 56. The intermediate part 66 c extends from the end of the crosshead 54 b to the pivotable part 66 b, in this case from below the end of the crosshead 54 b to below the pivotable part 66 b. The pivotable part 66 b, on which the tool 30 is mounted, is pivotable relative to the intermediate part 66 c along the axis having the component parallel to the axis Z to generate the first yawing movement at the tool holder 66. This structural configuration of the distal joint 56 is shown by way of example, while several variants are possible and can confer the adequate degrees of freedom to allow the pitching and/or yawing movements at the tool holder 66. Among other alternatives, the first and second joint 56 b, 56 a of the distal joint 56 can be replaced with a ball joint.
  • Referring to FIGS. 6 and 6A, the positioning system 50 is provided with an orientation means 70. A guide 72 of the orientation means 70 is attached to the support arm 52 and cooperates with the tool 30 to force the latter to pivot to the standard orientation while the displacement module 60 raises the tool 30 toward the raised position. The guide 72 is a structure of arcuate shape partially surrounding a cavity 72 a open downwards, provided with two arms 72 b arranged on either side of the cavity 72 a. Each arm 72 b is provided with a surface 72 c extending from one end of the arm 72 b toward the cavity 72 a. The surface 72 c is oriented so that the tool contacting the surface 72 c while oriented at the first yaw angle will be directed to the standard orientation as it slides toward the cavity 72 a along the surface 72 c, as shown in FIG. 6. The orientation means 70 also comprises a biasing means 74, comprising a first attachment point 74 a linked to the second member 64 of the displacement module 60, a second attachment point 74 b linked to the intermediate part 66 c of the distal joint 56 and a resilient element 74 c having two parts spaced apart from each other and respectively attached to one of the attachment points 74 a, 74 b. The resilient element 74 c in this case is a helically shaped metal spring, but other types of resilient elements are possible. The resilient element 74 c is configured such that reversible strain is induced in the resilient element 74 c as the pitch angle increases from the standard orientation, and in this case more particularly as a pitch motion elevates the distal device 32 vertically, creating tension in the resilient element 74 c. Such a movement can occur in the presence of a vertical drop in the line 12, for example when the distal device 32 is in contact with the first conductive cable C of the line 12 and is moved on the sleeve M of the line 12, acting as a ramp forcing a pitching motion of sufficient magnitude for the distal device 32 to cross the drop between the cable C and the sleeve M. If the distal device 32 is removed from the sleeve M toward the cable C, the resilient element 74 c would be restored to its original shape, thus inducing a pitching movement returning the tool holder 66 and the tool 30 to the standard orientation.
  • Referring to FIGS. 6 and 6A, the positioning system 50 comprises a proximal kinematic joint 58. The support arm 52 is configured in two parts. A first part 52P1 having the first end 52 a is mounted to the body 20, while a second part 52P2 of the support arm 52 having the second end 52 b is pivotable relative to the first part 52P1, through the proximal kinematic joint 58 between the two parts 52P1,52P2 of the support arm 52. The proximal kinematic joint 58 corresponds in this case to a revolving joint. The second end 52 b is free and can move freely in the configuration of FIGS. 6 and 6A because it is not connected to an external structure such as the cage 29. The second part 52P2 of the support arm 52 is therefore pivotable above the working volume V2 and about an axis having a component parallel to the axis Z. Since the displacement module 60 is mounted to the second portion 52P2 of the support arm 52, the proximal kinematic joint 58 is configured such that a second yawing motion of the tool holder 66 with the tool 30 is made possible by the pivoting of the second part 52P2 of the support arm 52. The tool holder 66 is therefore pivotable at a second yaw angle with respect to the standard orientation. The orientation means 70 comprises a so-called proximal biasing means 76. This proximal biasing means 76 comprises a first attachment point 76 a linked to the first part 52P1 of the support arm 52, a second attachment point 76 b linked to the second part 52P2 of the support arm 52 and a resilient element 76 c having two parts spaced apart from each other and respectively attached to one of the attachment points 76 a, 76 b. The resilient element 76 c is in this case a metallic coil spring, but other types of resilient elements are possible. The proximal biasing means 76 is configured such that reversible strain is induced in the resilient element 76 c as the second yaw angle increases from the standard orientation, causing tension in the resilient element 76 c. Such a movement can occur in the presence of a horizontal deviation in the line 12, for example when the distal device 32 in contact with the first conductive cable C of the line 12 is moved on the sleeve M of the line 12, acting as a ramp forcing a yawing motion of sufficient magnitude for the distal device 32 to cross the deviation between the cable C and the sleeve M. If the distal device 32 is removed from the sleeve M toward the cable C, the resilient element 76 c would be restored to its original shape, thus inducing a yawing movement returning the tool holder 66 and the tool 30 to the standard orientation. In other embodiments of the positioning system 50, one or the other of the components of the orientation means 70 may be arranged differently or even be omitted.
  • In the embodiment shown in FIGS. 6 and 6A, the motor 62 a is provided with a shaft which can be driven in clockwise or counterclockwise rotation about an axis having a component parallel to the axis Z. A screw 62 c arranged on the crosshead 54 b is received by a nut 62 d arranged on the slide 54 a, the nut 62 d being blocked in translation but free to rotate about an axis parallel to that of the motor 62 a. A belt 62 e connecting the shaft of the motor 62 a to the nut 62 d makes it possible to transform the rotary movement of the motor 62 a into vertical movement of the second member 64 relative to the first member 62.
  • FIGS. 7A and 7B illustrate some of the positions of the tool 30 made possible by the joints 54, 56, 58. In FIG. 7A, the standard orientation, shown at O, and the ranges of yawing movement relative to the standard orientation O are shown at Φ1 (including the first yaw angle of the intermediate part 66 c of the tool holder 66 relative to the second member 64 of the displacement module 60) and Φ2 (including the second yaw angle of the second part 52P2 of the support arm 52 relative to the first part 52P1 of the support arm 52) respectively. FIG. 7B illustrates a position of the tool 30 following yawing movements at the proximal 58 and distal 56 joints generated as the orientation of the tool 30 conforms to a deviation of the sleeve M and the line 12, and as the UAV 10 is supported by the line 12 by means of the displacement assembly 40. The alignment of the tool 30 and its ability to conform with the alignment of the line 12 or of the component to be monitored occur passively. The joints 54, 56, 58 allow a rotational adjustment of the passive tool 30, which is triggered when the tool 30 is moved by the positioning system 50 to contact the component. This passive rotary adjustment of the tool 30 requires no application of force or other intervention by the positioning system 50.
  • FIG. 8 is a schematic illustration of a kinetic chain of the UAV 10 and of various components thereof, the modalities of which may differ depending on the embodiment. The axis X is parallel to the axis U and they are perpendicular to the same vertical plane. A vertical distance D1 between the axes X and U may vary from one embodiment to another, and may be variable in certain embodiments. A variation in the distance D1 can correspond to a relative movement between the support arm 52 and the displacement assembly 40, and by a vertical displacement of the center of gravity 10 a of the UAV 10. The distance D1 can be set so that the vertical position of the center of gravity 10 a promotes the balance of the UAV 10 with respect to the axis U, for example when the UAV 10 is supported on the line 12 by means of the displacement assembly 40.
  • The offset kinematic joint 54 is located at a horizontal distance D2 from the first side 20 a of the body 20 along the axis X. The distance D2 can for example be the distance, along the axis X and the support arm 52, from the first side 20 a to the positioning system 50 via which the tool 30 is mounted on the body 20. The distance D2 can for example be established as a function of the length of the tool 30, or the dimension between the devices 32, 34. The distal device 32 is located at a horizontal distance D3 from the offset joint 54. Considering that the configuration of the tool 30 shown in FIG. 8 allows an adjustment of its length, the distance D3 can be varied manually, or automatically by means of a displacement module suitably arranged with the inner and outer tubular elements 36 a, 36 b of the tool 30. The distance D3 can be established so that the distal device 32 can be positioned outside the working volume V2, for example beyond the perimeter defined by the cage 39. For other configurations of the tool 30 which do not allow an adjustment of their lengths, the distance D3 has a value of zero.
  • The offset joint 54 is configured to cause a vertical displacement of the tool holder 66 over a distance D4. The distance D4 can be set, for example, so that the tool 30 can travel at least to the axis U in the lowered position. The distance D4 can be set, for example, so that the tool 30 can go at least to the axis L of the line 12 in the lowered position.
  • The distal joint 56, when present, can be moved vertically from a position offset along the axis X, by means of the offset joint 54. The distal joint 56 allows the tool 30 to pivot relative to the second member 64 along an axis having a component parallel to the axis Z. The distal joint 56 comprises the first joint 56 b allowing the yawing movement. The tool 30 is therefore pivotable at the first yaw angle Φ1 with respect to the standard orientation O. In the embodiment of FIG. 8, the distal joint 56 also allows a pitching movement. The distal joint 56 comprises the second joint 56 a, which is pivotable with the pivotable part 66 b relative to the stationary part 66 a to generate the pitching movement according to the angle θ. The tool 30 is therefore pivotable at a pitch angle θ with respect to the standard orientation O. The distal joint 56 is located at a vertical position when the offset joint 54 is in the raised position. In the embodiments in which the distal joint 56 is provided with the first and second joints 56 a, 56 b, as shown in FIG. 8, a non-zero horizontal distance D5 is defined between them indicating that the axis of the first yaw angle is offset in a direction parallel to the axis Y of the first part 52P1 of the support arm 52. In another possible embodiment where the distance D5 is zero, the axes of rotation of the first and second joints 56 a, 56 b intersect at a point, allowing the tool 30 to self-orient to better couple with the conductor C or the sleeve M.
  • The proximal joint 58, when present, is located between the offset joint 54 and the first side 20 a of the body 20, at a distance D6 along the axis X from the first side 20 a. The first end 52 a of the first part 52 P1 support arm 52 is mounted to the first side 20 a of the body 20, while the second end 52 b is pivotable relative to the first part 52P1, by means of the proximal kinematic joint 58. The proximal joint 58 allows the second part 52P2 of the support arm 52, and therefore the tool 30 supported indirectly by the second part 52P2, to pivot at the second yaw angle Φ2 relative to the first part 52P1 of the support arm 52 and the body 20. The axes of rotation around which the first and second yaw angles Φ1, Φ2 are defined are parallel and are distanced from each other, thus making it possible to offset the tool 30 in parallel to improve its alignment with the conductor C or with the sleeve M. Referring to FIG. 8, the axis of the vertical translational movement defined by the offset joint 54 is parallel to the axis of rotation defined by the proximal joint 58. Depending on the rotation effected in the pitch angle θ at the second rotary joint 56 a, the axis of rotation of the first joint 56 b can also be parallel to the axis of rotation of the proximal joint 58, thus allowing a parallel offset of the tool 30 on the side 20 a of the body 20. In a possible embodiment where the distance D5 is zero, the axis of the vertical translational movement defined by the offset joint 54 and the axes of rotation of the first and second joints 56 a, 56 b intersect at a point. The axis of the vertical translational movement defined by the offset joint 54 is positioned elsewhere at a distance from the first and second joints 56 a, 56 b in another possible embodiment.
  • The positioning system 50 and its possible degrees of freedom which are shown in FIG. 8 allow passive adjustment of the tool 30 so that it aligns better with the component 11 to be monitored. In the embodiment of the positioning system 50 which comprises the joints 54, 56, 58, the positioning system 50 defines or comprises the following four degrees of freedom: three rotary degrees of freedom allowing the tool 30 to move and to orient itself with respect to the body 20 according to the first and second yaw angles Φ1, Φ2 and according to the pitch angle Φ, and another degree of translational freedom allowing the tool 30 to move vertically with respect to the body 20. In the embodiment of the positioning system 50 which comprises the joints 54, 56, 58, the order of the degrees of freedom from the body 20 of the vehicle 10 is as follows: 1) a rotary degree of freedom at the second yaw angle Φ2, 2) a translational degree of freedom defined by the offset joint 54, 3) a rotary degree of freedom at the first yaw angle Φ1, and 4) a rotary degree of freedom at the pitch angle θ. The four degrees of freedom which form the kinetic chain of the positioning system 50 between the body 20 of the vehicle 10 and the tool 30 are composed of three rotary joints (e.g. the joints 56 a, 56 b, 58) and a prismatic joint (e.g. the offset joint 54).
  • In view of the above, the reader will appreciate that the distances D1-D6 as well as the ranges of rotation and/or translation of the various joints 54, 56, 58 appear among the parameters which may differ from one embodiment to another.
  • The above description is given only by way of example, and those skilled in the art will recognize that modifications can be made to the described embodiments without departing from the scope of the described disclosure. Such modifications within the scope of this disclosure will be apparent to those skilled in the art in light of a consideration of the present disclosure, and are intended to be comprised within the scope of the appended claims.

Claims (20)

1. An unmanned aerial vehicle mountable relative to a power line for monitoring a component of the line, the unmanned aerial vehicle comprising:
a body having sides and a propulsion system to lift, lower and navigate the vehicle relative to the line;
a tool positioning system including a displacement module having a first member mounted to the body, a second member movable vertically relative to the first member, and a tool holder pivotably coupled to the second member; and
a monitoring tool mountable to the tool holder to be positioned remotely from the body on one side of the sides of the body and to be movable with the tool holder relative to the body for mounting to or around the component.
2. The unmanned aerial vehicle according to claim 1, wherein the tool holder is pivotable at a pitch angle and/or a yaw angle, relative to the second member.
3. The unmanned aerial vehicle according to claim 2, wherein the tool holder is pivotable at the pitch angle, and the tool positioning system includes orientation means for biasing the tool holder from the pitch angle to a standard orientation of the tool holder relative to the second member.
4. The unmanned aerial vehicle according to claim 1, wherein the tool positioning system includes a support arm extending longitudinally between a first end mounted to the one side of the body and a second end positioned away from the one side of the body, the first member of the displacement module mounted to the support arm away from the first end on the one side of the body.
5. The unmanned aerial vehicle according to claim 4, wherein at least part of the support arm is pivotable relative to the body so as to pivot the displacement module and the tool holder relative to the body at a yaw angle.
6. The unmanned aerial vehicle according to claim 5, wherein the tool positioning system includes means for biasing the support arm from the yaw angle to a standard orientation of the support arm.
7. The unmanned aerial vehicle according to claim 5, wherein the tool holder is pivotable at a first yaw angle with respect to the second member about a first axis, the support arm being pivotable at a second yaw angle with respect to the body along a second axis parallel to the first axis.
8. The unmanned aerial vehicle according to claim 5, wherein the monitoring tool is in a standard orientation of the monitoring tool when the support arm is in the standard orientation of the support arm and the tool holder is in the standard orientation of the tool holder.
9. The unmanned aerial vehicle according to claim 4, wherein the monitoring tool is disposed beneath the support arm.
10. The unmanned aerial vehicle according to claim 4, wherein an unobstructed working volume is defined below the support arm and on the one side of the sides of the body, the unobstructed working volume sized so that a portion of the line having the component can be received within the unobstructed working volume, the monitoring tool being movable via the tool positioning system to be mounted to or around the component in the unobstructed working volume.
11. The unmanned aerial vehicle according to claim 10, comprising a cage mounted to the body and at least in part circumscribing the unobstructed working volume, the monitoring tool mountable to the tool holder to extend from the tool holder inside the cage to outside of the cage.
12. The unmanned aerial vehicle according to claim 1, wherein the monitoring tool has a proximal device and a distal device positioned remotely from the proximal device, the monitoring tool being mountable to the tool holder at a location between the proximal device and the terminal device so that the proximal device is closer to the body than the distal device.
13. The unmanned aerial vehicle according to claim 1, wherein the displacement module includes a motor attached to the first member and connected to the second member for displacing the second member.
14. The unmanned aerial vehicle according to claim 13, wherein the motor is connected to the second member by a connecting rod arranged between the motor and the second member.
15. The unmanned aerial vehicle according to claim 13, wherein the motor is connected to the second member by a nut mounted on a screw arranged relative to the second member.
16. A method of positioning an unmanned aerial vehicle relative to a component of a power line, the method comprising:
landing a body of the vehicle on the line with a side of the body at a distance from the component of the line; and
moving a component monitoring tool relative to the side of the body in a vertical direction along the side of the body to mount the monitoring tool to or around the component.
17. The method according to claim 16, wherein moving the component monitoring tool includes moving the component monitoring tool such that an orientation of the component monitoring tool conforms to an orientation of the component.
18. The method according to claim 16, wherein moving the component monitoring tool includes moving the component monitoring tool so that the monitoring tool contacts the component, thereby allowing the monitoring tool to pivot relative to the side of the body when the monitoring tool contacts the component.
19. The method according to claim 18, wherein moving the component monitoring tool includes at least one of moving the body along the line toward the component to move the monitoring tool along the component and moving the monitoring tool in the vertical direction against the component.
20. A tool positioning system of an unmanned aerial vehicle mountable relative to a power line to monitor a component of the line, the tool positioning system comprising: a displacement module having a first member mountable to one side of a body of the unmanned aerial vehicle, a second member movable vertically relative to the first member on the side of the body, and a tool holder pivotably coupled to the second member and couplable to a tool, the tool holder being movable relative to the body to mount the tool to or around the component.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220380044A1 (en) * 2021-05-25 2022-12-01 Valmet Technologies Oy Unmanned Aerial Vehicle
US20240017855A1 (en) * 2020-09-30 2024-01-18 Nippon Telegraph And Telephone Corporation Propeller guard
US20240308701A1 (en) * 2021-11-29 2024-09-19 Ampacimon S.A. Drone protection against high-voltage electrical discharges and corona effect

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3044139C (en) * 2016-11-22 2022-07-19 Hydro-Quebec Unmanned aerial vehicle for monitoring an electricity transmission line
CA3056716C (en) * 2017-04-07 2021-05-25 Mark Holbrook HANNA Distributed-battery aerial vehicle and a powering method therefor
CN107390123A (en) * 2017-07-25 2017-11-24 上海俏动智能化科技有限公司 A kind of multi-rotor unmanned aerial vehicle dynamic failure monitoring method and monitoring system
US10613429B1 (en) 2017-08-29 2020-04-07 Talon Aerolytics (Holding), Inc. Unmanned aerial vehicle with attached apparatus for X-ray analysis of power lines
TWI657011B (en) * 2017-11-30 2019-04-21 財團法人工業技術研究院 Unmanned aerial vehicle, control system for unmanned aerial vehicle and control method thereof
CA2988156A1 (en) * 2017-12-08 2019-06-08 Quanta Associates, L.P. Unmanned aerial vehicle for use near high voltage power lines
CN108988199B (en) * 2018-07-02 2020-08-14 广州供电局有限公司 Power transmission line hardware crimping quality detection device
CN109242238A (en) * 2018-07-17 2019-01-18 贵州汇杰兴邦电力工程有限公司 A kind of extension of rural power grids and management system based on unmanned plane
CA3112440A1 (en) 2018-09-11 2020-03-19 Mark Holbrook HANNA Transportation aerial-vehicle having distributed-batteries and powering method therefor
CN109950829B (en) * 2019-04-01 2020-07-31 国网河南省电力公司内乡县供电公司 Transmission line inspection robot based on unmanned aerial vehicle platform
US11608169B2 (en) * 2019-04-06 2023-03-21 Beirobotics Llc Unmanned aerial system and method for contact inspection and otherwise performing work on power line components
CN110132602A (en) * 2019-05-10 2019-08-16 西北工业大学 A kind of Unmanned Aerial Vehicle Powerplants system ground detector
JP6683357B1 (en) * 2019-09-17 2020-04-15 株式会社プロドローン Continuity inspection system
CN111028378A (en) * 2019-12-10 2020-04-17 中国电建集团江西省电力建设有限公司 Unmanned aerial vehicle inspection system and inspection method for fishing complementary photovoltaic power station
US11518512B2 (en) * 2020-01-31 2022-12-06 Textron Innovations Inc. Power line inspection vehicle
CN111301678B (en) * 2020-02-27 2021-06-01 南京工程学院 Intelligent power inspection robot based on multi-rotor aircraft and use method
CN111952884B (en) * 2020-08-28 2021-07-23 红相股份有限公司 General investigation and reexamination detection method for high-voltage line
JP7476329B2 (en) * 2020-09-23 2024-04-30 上海西邦電気有限公司 Equipment safety protection method applied to laser obstacle removal device
US12012208B2 (en) 2020-12-23 2024-06-18 Osmose Utilities Services, Inc. Systems and methods for inspecting structures with an unmanned aerial vehicle
CA3116940A1 (en) 2021-04-30 2022-10-30 Hydro-Quebec Drone with positioning system tool
US11952119B2 (en) 2021-05-05 2024-04-09 Beirobotics Llc Payload support frame for unmanned aerial system
KR102639305B1 (en) * 2021-10-01 2024-02-21 주식회사 지에이 Drone
CN113625126A (en) * 2021-10-12 2021-11-09 长沙康飞电子科技有限公司 Power supply station power supply line detection device
DK181272B1 (en) * 2021-10-29 2023-06-15 Reblade Aps Autonomous flying vehicle and a method for repairing a composite surface
CN114088743B (en) * 2021-11-18 2023-06-06 国网湖南省电力有限公司 Multi-split conductor splicing sleeve electrified flaw detection system and application method thereof

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818990A (en) * 1987-09-11 1989-04-04 Fernandes Roosevelt A Monitoring system for power lines and right-of-way using remotely piloted drone
US20060114122A1 (en) * 2003-05-15 2006-06-01 Jones David I Power line inspection vehicle
FR3020282A1 (en) * 2014-04-24 2015-10-30 Parrot UNIVERSAL MOUNTING PLATE FOR ROTARY SAIL DRONE
US20150377405A1 (en) * 2014-06-25 2015-12-31 Pearson Engineering Ltd Inspection systems
US9421869B1 (en) * 2015-09-25 2016-08-23 Amazon Technologies, Inc. Deployment and adjustment of airborne unmanned aerial vehicles
FR3035275A1 (en) * 2015-04-17 2016-10-21 Cteam France DEVICE FOR MONITORING AND / OR INTERVENTING ON A CABLE LOCATED IN HEIGHT
US20170015414A1 (en) * 2015-07-15 2017-01-19 Elwha Llc System and method for power transfer to an unmanned aircraft
US20170168107A1 (en) * 2014-02-03 2017-06-15 Obschestivo S Ogranichennoj Otvetstvennostyu 'Laboratoriya Buduschego' Method and Apparatus for Locating Faults in Overhead Power Transmission Lines
US9753461B1 (en) * 2016-04-07 2017-09-05 Google Inc. Autonomous aerial cable inspection system
US9878787B2 (en) * 2015-07-15 2018-01-30 Elwha Llc System and method for operating unmanned aircraft
JP6394833B1 (en) * 2017-10-13 2018-09-26 中国電力株式会社 Method for controlling unmanned air vehicle and unmanned air vehicle
CN109573037A (en) * 2019-01-24 2019-04-05 吉林大学 A kind of power-line patrolling unmanned plane and patrolling method based on VR and multisensor
US20190176984A1 (en) * 2017-12-08 2019-06-13 Quanta Associates, L.P. Unmanned aerial vehicle for use near high voltage power lines
US20190260191A1 (en) * 2016-11-22 2019-08-22 HYDRO-QUéBEC Unmanned aerial vehicle for monitoring an electrical line
US10613429B1 (en) * 2017-08-29 2020-04-07 Talon Aerolytics (Holding), Inc. Unmanned aerial vehicle with attached apparatus for X-ray analysis of power lines
US20200317336A1 (en) * 2019-04-06 2020-10-08 Beirobotics Llc Unmanned aerial system and method for contact inspection and otherwise performing work on power line components
US10822080B2 (en) * 2018-06-28 2020-11-03 The Boeing Company Aircraft and methods of performing tethered and untethered flights using aircraft
US20210114730A1 (en) * 2018-06-27 2021-04-22 Andrew Norman MACDONALD Autonomous aerial vehicle with a fender cage rotatable in every spherical direction
US20210237866A1 (en) * 2020-01-31 2021-08-05 Bell Textron Inc. Power line inspection vehicle
US20210339845A1 (en) * 2018-09-26 2021-11-04 Flyability Sa Uav with protective outer cage
US20210399541A1 (en) * 2019-01-31 2021-12-23 Heimdall Power As Device, system and method for installing an object on a power line
US20220146555A1 (en) * 2019-02-21 2022-05-12 Siemens Energy Global GmbH & Co. KG Method for monitoring a power line
US20220380044A1 (en) * 2021-05-25 2022-12-01 Valmet Technologies Oy Unmanned Aerial Vehicle

Family Cites Families (186)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE521821C2 (en) 1999-07-09 2003-12-09 Vattenfall Ab Device for automatic control of joints on high voltage electrical wiring
CA2463188A1 (en) * 2004-04-15 2005-10-15 Serge Montambault Compact inspection and intervention vehicle that moves on a cable and can cross major obstacles
US8060270B2 (en) 2008-02-29 2011-11-15 The Boeing Company System and method for inspection of structures and objects by swarm of remote unmanned vehicles
US8063323B1 (en) 2008-07-30 2011-11-22 Ledbetter Finley L Circuit breaker replacement tool
CN101574983B (en) 2009-06-12 2013-03-13 中国电力科学研究院 Lead obstacle-crossing robot walking device
JP5237472B2 (en) * 2010-02-10 2013-07-17 エレクトリック パワー リサーチ インスティテュート,インク. Line inspection robot and system
AU2011202230A1 (en) * 2010-02-10 2011-08-25 Electric Power Research Institute, Inc. Line inspection robot and system
CN101811578B (en) 2010-04-23 2013-10-23 国家电网公司 Special photoelectric nacelle of power patrol unmanned helicopter
US8604369B2 (en) 2010-09-03 2013-12-10 Inolect, Llc Circuit breaker remote racking device
CN102589524B (en) 2011-01-13 2014-01-08 国家电网公司 Power line patrolling method
CN102201865B (en) 2011-04-28 2014-05-07 国家电网公司 Unmanned aerial vehicle power line inspection hybrid communication system
US8991273B2 (en) 2011-08-21 2015-03-31 Electric Power Research Institute, Inc. Apparatus and method for inspecting high voltage insulators
CN103163881A (en) 2011-12-16 2013-06-19 国家电网公司 Power transmission line inspection system based on fixed-wing unmanned aerial vehicle
CN102591355B (en) 2012-02-24 2014-06-11 山东电力研究院 Method for detecting safe power-line-cruising distance of UAV (unmanned aerial vehicle)
CN102611200B (en) 2012-03-12 2013-12-18 中国电力科学研究院 Unmanned aerial vehicle power transmission and transformation monitoring system based on laser quantum cryptographical communication
CN102736632B (en) 2012-06-29 2014-03-12 山东电力集团公司电力科学研究院 Differential evadible system of electric field for unmanned aerial vehicle polling live wires and method
CN202632111U (en) 2012-06-29 2012-12-26 山东电力集团公司电力科学研究院 Electric field measurement obstacle avoidance system for polling live wire by unmanned aerial vehicle
CN202632112U (en) 2012-06-29 2012-12-26 山东电力集团公司电力科学研究院 Electric field difference obstacle avoidance system for live wire tour inspection of unmanned aerial vehicle
CN102722178B (en) 2012-06-29 2014-02-26 山东电力集团公司电力科学研究院 Electric field measuring obstacle avoidance system and method for live wire routing inspection of unmanned aerial vehicle
WO2014016814A2 (en) * 2012-07-27 2014-01-30 University Of Kwazulu-Natal An apparatus for use on a cable; and a system for and method of inspecting a cable
CN202817597U (en) 2012-08-15 2013-03-20 山西省电力公司大同供电分公司 Power transmission line touring system based on unmanned plane
CN102929288B (en) 2012-08-23 2015-03-04 山东电力集团公司电力科学研究院 Unmanned aerial vehicle inspection head control method based on visual servo
CN102879692B (en) 2012-10-16 2014-11-05 山东电力集团公司电力科学研究院 Method and device for detecting insulator through multi-rotor unmanned aerial vehicle
CN202817605U (en) 2012-10-16 2013-03-20 山东电力集团公司电力科学研究院 UAV routing-inspection line corridor device based on millimeter-wave radar
CN202815124U (en) 2012-10-16 2013-03-20 山东电力集团公司电力科学研究院 Insulator detecting device by using multi-rotor unmanned aerial vehicle
CN102891453B (en) 2012-10-16 2015-04-22 山东电力集团公司电力科学研究院 Unmanned aerial vehicle patrolling line corridor method and device based on millimeter-wave radar
CN102915037B (en) 2012-10-30 2015-03-11 华北电力大学 Hybrid control based stability augmentation control method of quad-rotor unmanned helicopter
CN103010070B (en) 2012-11-30 2015-06-03 山东电力集团公司电力科学研究院 Unmanned aerial vehicle comprehensive ground station system and application method thereof
CN202896375U (en) 2012-11-30 2013-04-24 山东电力集团公司电力科学研究院 Unmanned plane integral ground station system
CN203039688U (en) 2012-12-05 2013-07-03 福建省电力有限公司 Mountain area power grid routing inspection-used unmanned helicopter system with relay system
CN203219298U (en) 2012-12-05 2013-09-25 福建省电力有限公司 Unmanned helicopter system special for inspecting electric grid in mountain area
CN103078673B (en) 2012-12-05 2016-01-20 福建省电力有限公司 A kind of dedicated unmanned Helicopter System being applicable to mountain area electrical network and patrolling and examining
CN103224026B (en) 2012-12-05 2016-01-20 福建省电力有限公司 A kind ofly be applicable to dedicated unmanned helicopter obstacle avoidance system that mountain area electrical network patrols and examines and workflow thereof
CN203193785U (en) 2012-12-14 2013-09-11 国家电网公司 Glasses
CN203094465U (en) 2013-01-30 2013-07-31 中国科学院沈阳自动化研究所 Mechanical and electrical integration unmanned helicopter vehicle-mounted system
CN103963991B (en) 2013-01-30 2016-04-06 中国科学院沈阳自动化研究所 A kind of electromechanical integration unmanned plane onboard system
CN103235602B (en) 2013-03-25 2015-10-28 山东电力集团公司电力科学研究院 A kind of power-line patrolling unmanned plane automatic camera opertaing device and control method
CN203102023U (en) 2013-03-25 2013-07-31 山东电力集团公司电力科学研究院 Automatic photographing control equipment for power line patrol unmanned aerial vehicle
CN103368103B (en) 2013-05-09 2016-01-20 衡水众翔电子科技有限公司 For hanging flight instruments and the method for sag rope to transmission line
CN203381787U (en) 2013-05-09 2014-01-08 衡水众翔电子科技有限公司 Electric multi-shaft unmanned aerial vehicle for checking electric transmission line
CN103292752A (en) 2013-05-31 2013-09-11 国家电网公司 Measuring method for minimum linear distance between overhead wire and spanning object
CN103353297A (en) 2013-06-03 2013-10-16 长春理工大学 Airborne photoelectric measurement apparatus of dimensions and spacing of electric transmission line and target, and method thereof
CN203567947U (en) 2013-06-04 2014-04-30 国家电网公司 Self stabilizing holder for unmanned plane
CN203301131U (en) 2013-06-19 2013-11-20 国家电网公司 Automatic switching circuit capable of protecting loops in switching of main line switch and by-pass switch
CN203397214U (en) 2013-07-09 2014-01-15 国家电网公司 Special unmanned helicopter obstacle-avoiding system suitable for tour inspection of electrical networks in mountain area
CN103332296B (en) 2013-07-17 2017-02-08 国家电网公司 Power supply for unmanned aerial vehicle
CN103318405B (en) 2013-07-17 2015-11-18 国家电网公司 A kind of unmanned plane
CN103457654B (en) 2013-07-25 2017-12-22 国家电网公司 A kind of relay point points distributing method of the patrol unmanned machine terrestrial repetition system of power network
CN103454556B (en) 2013-08-09 2016-01-20 国家电网公司 A kind of inspection device and detection method thereof with 3D scan function
CN203479958U (en) 2013-08-09 2014-03-12 国家电网公司 Tour inspection device with 3D scanning function
CN104571239B (en) 2013-10-25 2017-03-15 意法半导体研发(深圳)有限公司 A kind of apparatus and method for generating direct current biasing
CN103684571A (en) 2013-11-25 2014-03-26 成都时代星光科技有限公司 Ultralow-delay digital high-definition image relay module of unmanned aerial vehicle
CN203608303U (en) 2013-11-25 2014-05-21 成都时代星光科技有限公司 Unmanned plane ultralow time-delay digital high-definition image emission module
CN203608304U (en) 2013-11-25 2014-05-21 成都时代星光科技有限公司 Unmanned plane ultralow time-delay digital high-definition image emission module
CN203608201U (en) 2013-11-25 2014-05-21 成都时代星光科技有限公司 Unmanned plane ultra low latency digital high definition image relay module
CN104670480A (en) 2013-11-27 2015-06-03 国家电网公司 Electric power routing inspection unmanned plane undercarriage
CN203740134U (en) 2013-11-29 2014-07-30 国家电网公司 Unmanned helicopter
CN103587705A (en) 2013-12-03 2014-02-19 国家电网公司 Unmanned helicopter with engine radiating cover
CN103591938A (en) 2013-12-03 2014-02-19 国家电网公司 System and method for measuring line sag height based on unmanned aerial vehicle
CN103796248A (en) 2013-12-10 2014-05-14 国家电网公司 Electric power emergency communication system and network flow control method thereof
CN203658576U (en) 2013-12-31 2014-06-18 国家电网公司 Unmanned plane laser radar overhead power transmission corridor mapping system
CN203673535U (en) 2014-01-02 2014-06-25 国家电网公司 Power line inspection device and system
CN103675609A (en) 2014-01-02 2014-03-26 国家电网公司 Power line patrol equipment and system
CN203681868U (en) 2014-01-16 2014-07-02 国家电网公司 Rotor wing for electric unmanned aerial vehicle
CN204119375U (en) 2014-01-28 2015-01-21 国家电网公司 The real-time return device of rotor wing unmanned aerial vehicle power transmission state monitoring information
CN103812052B (en) 2014-03-07 2016-06-01 国家电网公司 A kind of for without the centralized monitoring system of man-machine polling transmission line and monitoring method
CN103823449B (en) 2014-03-07 2016-05-11 国家电网公司 For Centralized Monitoring subsystem and the method for supervising of unmanned plane polling transmission line
CN103823451B (en) 2014-03-07 2016-08-17 国家电网公司 Unmanned plane power circuit polling centralized dispatching system and method based on GIS
CN103823450B (en) 2014-03-07 2016-09-21 国家电网公司 Unmanned plane power circuit polling dispatch terminal based on GIS and method
CN103886189B (en) 2014-03-07 2017-01-25 国家电网公司 Patrolling result data processing system and method used for unmanned aerial vehicle patrolling
CN103839194B (en) 2014-03-07 2017-02-08 国家电网公司 Unmanned aerial vehicle routing inspection image retrieval system and method based on electric transmission line and GIS
CN103941745B (en) 2014-03-07 2016-06-01 国家电网公司 For without the mobile substation of man-machine polling transmission line and method of work
CN103824233B (en) 2014-03-07 2016-10-05 国家电网公司 Unmanned plane power circuit polling dispatching platform and method based on GIS
CN203845019U (en) 2014-03-28 2014-09-24 国家电网公司 Unmanned helicopter inspection tour device carrying device for substation
CN103941746B (en) 2014-03-29 2016-06-01 国家电网公司 Image processing system and method is patrolled and examined without man-machine
CN203825467U (en) 2014-04-04 2014-09-10 国家电网公司 Auxiliary control device for preventing unmanned patrol helicopter from mistakenly hitting transmission line
CN203902842U (en) 2014-04-28 2014-10-29 国家电网公司 Charged foreign material cleaning unmanned plane protective cover
CN203911339U (en) 2014-04-28 2014-10-29 国家电网公司 Charged separating and folding and unfolding apparatus for removing foreign matters
CN203902839U (en) 2014-04-28 2014-10-29 国家电网公司 Electrified foreign object clearing unmanned aerial vehicle
CN104002963B (en) 2014-05-12 2017-03-15 国家电网公司 A kind of power transmission line unmanned makes an inspection tour machine
CN203864994U (en) 2014-05-12 2014-10-08 国家电网公司 Unmanned patrolling airplane for power transmission line
CN203881938U (en) 2014-05-29 2014-10-15 国家电网公司 Miniature front-end transmit-receive circuit of 38GHz millimeter wave broadband linear frequency modulation obstacle avoiding radar
CN203858359U (en) 2014-05-29 2014-10-01 国家电网公司 Unmanned plane line patrol obstacle avoidance radar broadband linearity frequency modulation continuous millimeter wave signal emission source
CN104062637B (en) 2014-05-29 2017-01-18 国家电网公司 Wide-band linear frequency modulation continuous millimeter-wave signal emitting source of line patrol obstacle avoidance radar of unmanned aerial vehicle
CN204010209U (en) 2014-05-30 2014-12-10 国家电网公司 Forest fire early-warning system based on depopulated helicopter
CN203996897U (en) 2014-05-30 2014-12-10 国家电网公司 A kind of plant protection unmanned plane
CN203876987U (en) 2014-06-11 2014-10-15 国家电网公司 Parachute cutting device and parachute cutting system
CN104065860A (en) 2014-06-17 2014-09-24 国家电网公司 Onboard ultra-lightweight integrated high-definition video imaging and high-bandwidth transmission device
CN104029817A (en) 2014-07-01 2014-09-10 国家电网公司 Unmanned aerial vehicle
CN104044725B (en) 2014-07-01 2017-02-01 国家电网公司 Unmanned plane for electric power overhaul
CN104071342B (en) 2014-07-03 2016-01-27 国家电网公司 Band electrical clean-up foreign matter unmanned plane protective cover
CN104071337B (en) 2014-07-08 2016-01-27 国家电网公司 Band electrical clean-up foreign matter unmanned plane
CN204056303U (en) 2014-07-09 2014-12-31 国家电网公司 The automatic tripping protection device of unmanned plane spreading guiding rope
CN104122560B (en) 2014-07-11 2017-01-25 国家电网公司 Electric transmission line wide area ice condition monitoring method
CN104076820A (en) 2014-07-19 2014-10-01 国家电网公司 Unmanned aerial vehicle electric power line polling control system and method based on three-dimensional GIS
CN104101332A (en) 2014-07-19 2014-10-15 国家电网公司 Automatic matching method for inspection photos of transmission lines
US9932110B2 (en) * 2014-07-22 2018-04-03 Jonathan McNally Method for installing an object using an unmanned aerial vehicle
CH709969A1 (en) 2014-08-08 2016-02-15 David Langenegger Cable plant inspection vehicle and cable plant inspection procedures.
CN204089305U (en) 2014-08-26 2015-01-07 国家电网公司 A kind of power-supply system being applied to unmanned plane automatic charging
CN104239899B (en) 2014-09-10 2018-01-19 国家电网公司 A kind of power transmission line spacer recognition methods for unmanned plane inspection
CN104242151B (en) 2014-09-10 2017-01-11 国家电网公司 Electrified removed-foreign-matter separation, collection and releasing device
CN204166080U (en) 2014-09-23 2015-02-18 国家电网公司 A kind of mobile monitoring device of electric power rapid rush-repair
CN204210732U (en) 2014-11-05 2015-03-18 国网辽宁省电力有限公司检修分公司 A kind of four rotor wing unmanned aerial vehicles for removing the flammable foreign matter in high-altitude
CN104483974A (en) 2014-11-06 2015-04-01 国家电网公司 Power transmission line inspection unmanned plane navigation device
CN204216106U (en) 2014-11-11 2015-03-18 国网辽宁省电力有限公司检修分公司 A kind of unmanned plane battery thermal device
CN204236782U (en) 2014-11-11 2015-04-01 国网辽宁省电力有限公司检修分公司 The dust-proof landing platform in a kind of Portable unmanned machine mountain region
CN204119397U (en) 2014-11-11 2015-01-21 国网辽宁省电力有限公司检修分公司 A kind of unmanned plane during flying posture monitoring system
CN204210729U (en) 2014-11-11 2015-03-18 国网辽宁省电力有限公司检修分公司 A kind of unmanned plane emergency landing gear
CN204191661U (en) 2014-11-11 2015-03-11 国网辽宁省电力有限公司检修分公司 A kind of moisture retentive glove for manipulating unmanned plane
CN104527991B (en) 2014-11-11 2016-08-24 国网辽宁省电力有限公司检修分公司 A kind of dust-proof landing in Portable unmanned machine mountain region platform
CN204264449U (en) 2014-11-13 2015-04-15 国家电网公司 A kind of line walking unmanned plane with infrared thermal imaging and aerial photography function
CN104332894B (en) 2014-11-17 2017-09-26 国家电网公司 A kind of unmanned aerial vehicle onboard pay off rack and unmanned plane
CN204144805U (en) 2014-11-17 2015-02-04 国家电网公司 A kind of unmanned aerial vehicle onboard pay off rack and unmanned plane
CN204223188U (en) 2014-11-18 2015-03-25 国网黑龙江省电力有限公司伊春供电公司 A kind of unmanned aerial vehicle onboard miniature power generating device
CN104597907B (en) 2014-11-27 2017-06-06 国家电网公司 A kind of overhead transmission line unmanned plane cruising inspection system flight evaluation of the accuracy method
CN104406762B (en) 2014-11-28 2016-09-21 国家电网公司 A kind of overhead transmission line depopulated helicopter cruising inspection system wind capability detection method
CN204310058U (en) 2014-11-28 2015-05-06 国家电网公司 A kind of fixed-wing unmanned plane
CN204310057U (en) 2014-11-28 2015-05-06 国家电网公司 A kind of fixed-wing unmanned plane
CN104459285B (en) 2014-12-01 2017-07-14 国家电网公司 A kind of electrical verification system and method based on unmanned plane
CN204433050U (en) 2014-12-18 2015-07-01 国家电网公司 The hardware platform of dynamic four rotor unmanned aircrafts of oil
CN104494820A (en) 2014-12-18 2015-04-08 国家电网公司 Oil-driven four-rotor-wing unmanned aerial vehicle
CN104527990B (en) 2014-12-18 2017-06-20 国家电网公司 The method that depopulated helicopter is patrolled and examined in grid power transmission circuit
CN204489177U (en) 2014-12-19 2015-07-22 国家电网公司 Four rotor unmanned aircrafts
CN104485606A (en) 2014-12-24 2015-04-01 国家电网公司 Pulling rope release system of small multi-shaft unmanned aerial vehicle
CN104536459A (en) 2014-12-24 2015-04-22 国家电网公司 Construction method for small multi-shaft unmanned aerial vehicle to unwind and release haulage cable
CN104536467B (en) 2014-12-26 2017-08-08 国家电网公司 A kind of over the horizon aircraft inspection tour system
CN204329971U (en) 2014-12-26 2015-05-13 国家电网公司 A kind of magnetic compass calibrating installation of unmanned plane
CN104655114A (en) 2014-12-26 2015-05-27 国家电网公司 Calibration device for magnetic compass of unmanned aerial vehicle
CN204331470U (en) 2014-12-26 2015-05-13 国家电网公司 Over the horizon aircraft inspection tour system
CN104536460A (en) 2014-12-31 2015-04-22 国家电网公司 Method for patrolling concave mountain slope electric transmission line by unmanned aerial vehicle
CN104535054B (en) 2014-12-31 2017-07-18 国家电网公司 A kind of magnetic compass rope calibration method of unmanned plane
CN104503465A (en) 2014-12-31 2015-04-08 国家电网公司 Method for inspecting power transmission lines on hillside by using unmanned plane
CN204313850U (en) 2014-12-31 2015-05-06 国家电网公司 A kind of magnetic compass rope calibrating installation of unmanned plane
CN204399485U (en) 2015-01-12 2015-06-17 国家电网公司 Band electrical clean-up foreign matter unmanned plane protective case
CN204564608U (en) 2015-01-16 2015-08-19 国家电网公司 Band electrical clean-up foreign matter wolf's fang robotic arm hand
JP6393630B2 (en) * 2015-01-21 2018-09-19 株式会社日立ハイテクファインシステムズ Inspection apparatus and inspection method
IL237130A0 (en) 2015-02-05 2015-11-30 Ran Krauss Landing and charging system for drones
CN204497664U (en) 2015-03-26 2015-07-22 国家电网公司 Based on the power transmission line block removing device of Multi-axis aircraft
CN104682267B (en) 2015-03-26 2017-02-22 国家电网公司 Power transmission line fault removal device based on multi-axle air vehicle
CN204548519U (en) 2015-04-24 2015-08-12 国家电网公司 UAV system camera head
CN104828254B (en) 2015-04-27 2017-01-04 国家电网公司 Band electrical clean-up foreign body unmanned plane protective cover
CN104867134B (en) 2015-05-04 2018-08-10 国家电网公司 A kind of recognition methods for unmanned plane inspection electric power line pole tower
CN104796672B (en) 2015-05-09 2018-04-20 合肥工业大学 A kind of unmanned plane is met an urgent need monitoring head device
CN204615968U (en) 2015-05-09 2015-09-02 国家电网公司 A kind of unmanned plane is met an urgent need monitoring head device
CN104836155A (en) 2015-05-13 2015-08-12 国家电网公司 Method for unfolding primary lead ropes of transmission line by remote-controlled unmanned aerial vehicle
CN104883218B (en) 2015-05-13 2018-08-07 国家电网公司 High voltage transmission line based on beam switchover sets up region UAV Communication device and the method with UAV Communication
CN104898653B (en) 2015-05-18 2018-07-03 国家电网公司 A kind of flight control system
CN104898697A (en) 2015-05-18 2015-09-09 国家电网公司 Three-dimensional dynamic model of unmanned plane and control method
CN104898700B (en) 2015-05-27 2017-07-11 国家电网公司 Tree bamboo automatic sharpening cuts system and method in a kind of overhead power transmission line passage
US20170012413A1 (en) 2015-07-10 2017-01-12 Light Serviços De Eletricidade S/A Inspection robot for live transmission line cables
WO2017125916A1 (en) 2016-01-19 2017-07-27 Vision Cortex Ltd Method and system for emulating modular agnostic control of commercial unmanned aerial vehicles (uavs)
CN106093618B (en) 2016-05-30 2018-08-07 国网山东省电力公司济南供电公司 A kind of lightning arrester live-line test robot
RU2634931C1 (en) 2016-06-08 2017-11-08 Общество с ограниченной ответственностью "Лаборатория будущего" Method for charging accumulator using wire of aerial transmission lines and device for its implementation
IL246358A0 (en) 2016-06-20 2016-11-30 Fox Yuval Positioning and locking system and method for unmanned vehicles
IL246357B (en) 2016-06-20 2020-02-27 Krauss Ran Payload exchange facilitating connector
CN106129890B (en) * 2016-06-23 2017-10-24 绍兴俪泰纺织科技有限公司 A kind of mountain area high-voltage electric power circuit upkeep operation unmanned plane
RU2647548C1 (en) 2016-07-14 2018-03-19 Общество с ограниченной ответственностью "Лаборатория будущего" Method of management of stabilization of helicopter type aircraft on rope
RU2647106C1 (en) 2016-07-14 2018-03-13 Общество с ограниченной ответственностью "Лаборатория будущего" Rope handling device (variants)
WO2018015959A1 (en) 2016-07-21 2018-01-25 Vision Cortex Ltd. Systems and methods for automated landing of a drone
EP3909862B1 (en) 2016-07-21 2023-09-06 Percepto Robotics Ltd Method and systems of anchoring an unmanned aerial vehicle on a ground station
JP6371959B2 (en) 2016-09-02 2018-08-15 株式会社プロドローン Robot arm and unmanned aircraft equipped with the same
JP6390014B2 (en) 2016-09-02 2018-09-19 株式会社プロドローン Robot arm and unmanned aircraft equipped with the same
US20180120196A1 (en) * 2016-10-31 2018-05-03 The Boeing Company Method and system for non-destructive testing using an unmanned aerial vehicle
US10873177B2 (en) 2016-11-02 2020-12-22 Ulc Robotics, Inc. Circuit breaker racking system and method
WO2018104790A1 (en) 2016-12-07 2018-06-14 Abb Schweiz Ag Liquid tank inspection including device for launching submersible
WO2018104780A2 (en) 2016-12-07 2018-06-14 Abb Schweiz Ag Submersible inspection system
US10802480B2 (en) 2016-12-07 2020-10-13 Abb Power Grids Switzerland Ag Submersible inspection device and redundant wireless communication with a base station
EP3552070B1 (en) 2016-12-07 2022-04-27 Hitachi Energy Switzerland AG Submersible inspection vehicle with navigation and mapping capabilities
US11468628B2 (en) 2016-12-07 2022-10-11 Hitachi Energy Switzerland Ag Submersible inspection device and vision based modelling
WO2018185519A2 (en) 2016-12-07 2018-10-11 Abb Schweiz Ag Submersible inspection device and wireless communication with a base station
RU2646544C1 (en) 2016-12-26 2018-03-05 Общество с ограниченной ответственностью "Лаборатория будущего" Device for diagnostics of overhead power lines
US10899475B1 (en) * 2017-07-19 2021-01-26 Mark Freeman, Jr. Transmission line tethered drone system
US10856542B2 (en) 2017-11-30 2020-12-08 Florida Power & Light Company Unmanned aerial vehicle system for deterring avian species from sensitive areas
RU2713643C2 (en) 2017-12-27 2020-02-05 Общество с ограниченной ответственностью "Лаборатория будущего" Method of object removal from rope and device for implementation thereof
RU2683417C1 (en) 2018-02-19 2019-03-28 Общество с ограниченной ответственностью "Лаборатория будущего" Method of capturing power line wires with working body of executive unit of device for remote control equipped for delivery thereof to place of work by aircraft lifting means, and device therefor
RU2683411C1 (en) 2018-03-01 2019-03-28 Общество с ограниченной ответственностью "Лаборатория будущего" Method of digital control of the process of monitoring, maintenance and local repair of opl and system for its implementation
US11581713B2 (en) 2018-03-06 2023-02-14 Duke Energy Corporation Methods and apparatuses for robotic breaker racking
NL2020695B1 (en) * 2018-03-30 2019-10-07 Ronik Inspectioneering B V Method for inspecting and/or manipulating a beam using an unmanned aerial vehicle
US10850840B2 (en) 2018-06-14 2020-12-01 Florida Power & Light Company Drone and rover preplacement for remote autonomous inspection of utility system components
RU2703398C1 (en) 2018-06-27 2019-10-16 Общество с ограниченной ответственностью "Канатоход" Device for remote cleaning and lubricant of metal rope
US11561251B2 (en) 2018-08-01 2023-01-24 Florida Power & Light Company Remote autonomous inspection of utility system components utilizing drones and rovers
CN109255336A (en) 2018-09-29 2019-01-22 南京理工大学 Arrester recognition methods based on crusing robot
EP3921232B1 (en) 2019-02-05 2024-10-09 Voliro AG Aerial vehicle
RU2717105C1 (en) 2019-02-20 2020-03-18 Общество с ограниченной ответственностью "Лаборатория будущего" Clamp for repair of wires of overhead transmission lines and method for installation thereof
CN110188786B (en) 2019-04-11 2022-12-06 广西电网有限责任公司电力科学研究院 Robot image recognition algorithm for leakage current of pot-type lightning arrester
US20200325977A1 (en) 2019-04-12 2020-10-15 Inolect, Llc Apparatus for electrical device and related method

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818990A (en) * 1987-09-11 1989-04-04 Fernandes Roosevelt A Monitoring system for power lines and right-of-way using remotely piloted drone
US20060114122A1 (en) * 2003-05-15 2006-06-01 Jones David I Power line inspection vehicle
US20170168107A1 (en) * 2014-02-03 2017-06-15 Obschestivo S Ogranichennoj Otvetstvennostyu 'Laboratoriya Buduschego' Method and Apparatus for Locating Faults in Overhead Power Transmission Lines
FR3020282A1 (en) * 2014-04-24 2015-10-30 Parrot UNIVERSAL MOUNTING PLATE FOR ROTARY SAIL DRONE
US20150377405A1 (en) * 2014-06-25 2015-12-31 Pearson Engineering Ltd Inspection systems
FR3035275A1 (en) * 2015-04-17 2016-10-21 Cteam France DEVICE FOR MONITORING AND / OR INTERVENTING ON A CABLE LOCATED IN HEIGHT
US20170015414A1 (en) * 2015-07-15 2017-01-19 Elwha Llc System and method for power transfer to an unmanned aircraft
US9878787B2 (en) * 2015-07-15 2018-01-30 Elwha Llc System and method for operating unmanned aircraft
US9421869B1 (en) * 2015-09-25 2016-08-23 Amazon Technologies, Inc. Deployment and adjustment of airborne unmanned aerial vehicles
US9753461B1 (en) * 2016-04-07 2017-09-05 Google Inc. Autonomous aerial cable inspection system
US11368002B2 (en) * 2016-11-22 2022-06-21 Hydro-Quebec Unmanned aerial vehicle for monitoring an electrical line
US20190260191A1 (en) * 2016-11-22 2019-08-22 HYDRO-QUéBEC Unmanned aerial vehicle for monitoring an electrical line
US10613429B1 (en) * 2017-08-29 2020-04-07 Talon Aerolytics (Holding), Inc. Unmanned aerial vehicle with attached apparatus for X-ray analysis of power lines
JP6394833B1 (en) * 2017-10-13 2018-09-26 中国電力株式会社 Method for controlling unmanned air vehicle and unmanned air vehicle
US20190176984A1 (en) * 2017-12-08 2019-06-13 Quanta Associates, L.P. Unmanned aerial vehicle for use near high voltage power lines
US11358717B2 (en) * 2017-12-08 2022-06-14 Quanta Associates, L.P. Unmanned aerial vehicle for use near high voltage power lines
US20210114730A1 (en) * 2018-06-27 2021-04-22 Andrew Norman MACDONALD Autonomous aerial vehicle with a fender cage rotatable in every spherical direction
US10822080B2 (en) * 2018-06-28 2020-11-03 The Boeing Company Aircraft and methods of performing tethered and untethered flights using aircraft
US20210339845A1 (en) * 2018-09-26 2021-11-04 Flyability Sa Uav with protective outer cage
CN109573037A (en) * 2019-01-24 2019-04-05 吉林大学 A kind of power-line patrolling unmanned plane and patrolling method based on VR and multisensor
US20210399541A1 (en) * 2019-01-31 2021-12-23 Heimdall Power As Device, system and method for installing an object on a power line
US20220146555A1 (en) * 2019-02-21 2022-05-12 Siemens Energy Global GmbH & Co. KG Method for monitoring a power line
US20200317336A1 (en) * 2019-04-06 2020-10-08 Beirobotics Llc Unmanned aerial system and method for contact inspection and otherwise performing work on power line components
US20210237866A1 (en) * 2020-01-31 2021-08-05 Bell Textron Inc. Power line inspection vehicle
US20220380044A1 (en) * 2021-05-25 2022-12-01 Valmet Technologies Oy Unmanned Aerial Vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240017855A1 (en) * 2020-09-30 2024-01-18 Nippon Telegraph And Telephone Corporation Propeller guard
US20220380044A1 (en) * 2021-05-25 2022-12-01 Valmet Technologies Oy Unmanned Aerial Vehicle
US12091171B2 (en) * 2021-05-25 2024-09-17 Valmet Technologies Oy Unmanned aerial vehicle
US20240308701A1 (en) * 2021-11-29 2024-09-19 Ampacimon S.A. Drone protection against high-voltage electrical discharges and corona effect

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