Abstract: Modular, propelled cable-driven robotic platform systems and methods of operation are disclosed. The system includes a robotic platform suspended by a system of overhead cables, motorized cable reels and pulleys. The robotic platform is configured to be equipped with tool modules for performing respective tasks. Additionally, the tool modules each have a multirotor propulsion system. A master control computer coordinates operation of the motorized cable and propulsion systems as a function of sensor data captured by navigation sensors on-board the platform so as to maneuver the robotic platform inside an industrial plant. The system is configured to maneuver around pipings and avoid obstacles in the plant in order to maximize the effective workspace that the robotic platform can reach to perform operations including inspection or repair.

Abstract: An ultrasonic an ultrasonic inspection device for a pipe or tube includes arcuate shaped first and second housings that are pivotally coupled to one another to allows the ultrasonic inspection device to move between an open position and a closed position. A driving gear assembly is coupled to the arcuate shaped second housing. The driving gear assembly includes a driving gear powered by a gear driving motor, as well as arcuate shaped first and second driven gears that travel within the arcuate shaped first and second guide tracks when the ultrasonic inspection device is in the closed position to permit the arcuate shaped first and second driven gears to be driven in a 360 degree path. An ultrasonic testing (UT) probe assembly is fixedly attached to the arcuate shaped second driven gear and configured for direct contact with the pipe for performing ultrasonic inspection of the pipe or tube.

Abstract: An ultrasonic inspection device for a pipe or tube is provided and includes an arcuate shaped housing having an arcuate shaped guide slot. The arcuate shaped housing has a first end and an opposite second end spaced from the first end. A first driving gear assembly is disposed at the first end of the arcuate shaped housing and includes a first driving gear powered by a first motor. A second driving gear assembly is disposed at the second end of the arcuate shaped housing and includes a second driving gear powered by a second motor. An arcuate shaped driven gear, that supports ultrasonic testing (UT) probe assembly, travels within the arcuate shaped guide slot and is engaged at all times with at least one of the first driving gear and the second gear to permit the arcuate shaped driven gear to be driven in a 360 degree path around the pipe.

Abstract: A portable system and method deploy a fire blanket to extinguish fires. One embodiment includes a foldable hinged assembly of arc-shaped elongated members configured to retain a fire blanket over a fire, and to pivot the arc-shaped elongated members to move the fire blanket onto the fire to smother and extinguish the fire. Another embodiment has a fire blanket mounted on poles of mobile platforms which are positionable to surround the fire and drop the fire blanket onto the fire to smother and extinguish the fire. Methods implement the portable system of the disclosed embodiments.

Abstract: A system and method control magnetic adhesion of a wheel to a surface using internal short-circuit conductors. The method includes providing the wheel having a first disc, apertures retaining magnets, and a conducting ring, and a second disc. In a first configuration, the second disc is isolated from the conducting ring to generate a first magnetic flux to increase adhesion. In a second configuration, magnetic interaction of the second disc and the conducting ring generates a second magnetic flux to decrease adhesion. The system implements the method.

Abstract: A system and method use a magnetic cancellation loop to control magnetic wheel adhesion. The wheel has an inner annular disc composed of a non-magnetic material with apertures to retain ferromagnetic structures and magnets, and an outer annular discs composed of a ferromagnetic material and are disposed on either side of the inner annular disc. Each outer annular disc has a non-magnetic isolator ring having curves extending in a serpentine manner. In a first configuration, the curves isolate the ferromagnetic structures from the magnets, thereby generating a first magnetic flux to increase the adhesion of the wheel to the ferromagnetic surface. In a second configuration, at least one outer annular disc is rotated to dispose the curves to allow magnetic interaction between the ferromagnetic structures and magnets, thereby generating a second magnetic to decrease the adhesion of the wheel to the ferromagnetic surface. The method implements the system.

Abstract: A system and method control magnetic adhesion of a wheel to a surface using internal cancellation magnets. An inner annular disc of the wheel comprises a non-magnetic material and has first and second apertures which retain magnets while an outer annular disc comprises a ferromagnetic material and is disposed on a side of the inner annular disc and has a non-magnetic isolator ring which extends in a serpentine manner. In one configuration, the curves of the serpentine isolator ring isolate the first magnets from the second magnets. In another configuration, the outer annular disc rotates relative to the inner annular disc to dispose the curves of the serpentine isolator ring in a second position to allow magnetic interaction between the first and second magnets to generate a second magnetic flux between the second magnets and the ferromagnetic surface to thereby decrease the adhesion of the wheel to the ferromagnetic surface.

Abstract: A system and method control magnetic adhesion of a wheel to a surface using rotating air gaps. First and second discs have apertures. The first disc retains magnets in the apertures. When the apertures of the second disc are not align with the magnets, adhesion is increased. When the apertures of the second disc are aligned with the magnets, air gaps block magnetic flux to decrease the adhesion. A method implements the system.

Abstract: An actuation system and method are actuated to control magnetic adhesion of a wheel to a surface. The actuation system is coupled to the wheel having inner and outer annular discs and the wheel is configured to adhere magnetically to a surface. The actuation system has a motor configured to rotate a first disc and to not rotate a second disc. In a first configuration, the motor rotates the first disc relative to the second disc in a first rotational direction, thereby generating a first magnetic flux to increase the adhesion of the wheel to the metallic surface. In a second configuration, the motor rotates the first disc relative to the second disc in a second rotational direction opposite the first rotational direction, thereby generating a second magnetic flux to decrease the adhesion of the wheel to the metallic surface. A method is also disclosed.

Abstract: A fire blanket deployment system includes a fire blanket assembly including a foldable fire blanket that is detachably coupled to a carrier. The foldable fire blanket is initially in a folded state. The system can include a frame having a plurality of vertical supports that are spaced apart from one another and for placement about an asset to be protected. A first suspension system is coupled to the plurality of vertical supports and is configured to move the fire blanket assembly to a target location between the plurality of vertical supports. A second suspension system that is coupled to the plurality of vertical supports and is configured to controllably unfold the fire blanket once the fire blanket assembly in at the target location. The second suspension system has an automatic detachment mechanism that allows the unfolded fire blanket to move downward toward the asset to be protected.

Abstract: Modular, propelled cable-driven robotic platform systems and methods of operation are disclosed. The system includes a robotic platform suspended by a system of overhead cables, motorized cable reels and pulleys. The robotic platform is configured to be equipped with tool modules for performing respective tasks. Additionally, the tool modules each have a multirotor propulsion system. A master control computer coordinates operation of the motorized cable and propulsion systems as a function of sensor data captured by navigation sensors on-board the platform so as to maneuver the robotic platform inside an industrial plant. The system is configured to maneuver around pipings and avoid obstacles in the plant in order to maximize the effective workspace that the robotic platform can reach to perform operations including inspection or repair.

Abstract: An unmanned aerial vehicle including a body and a docking mechanism coupled to the body is provided. The docking mechanism secures a magnetic crawler to the body during flight and during landing on a ferromagnetic cylindrical surface. The docking mechanism includes a docking hook that couples to the magnetic crawler and a linear actuator coupling the docking hook to the body. The docking hook includes passive latches that passively release the magnetic crawler from the docking hook onto the cylindrical surface after the landing, receive the magnetic crawler into the docking hook from the cylindrical surface after the releasing, and secure the magnetic crawler to the body during takeoff from the cylindrical surface after the receiving. The linear actuator lowers the docking hook and coupled magnetic crawler from the body to the cylindrical surface, and raises the docking hook and received magnetic crawler from the cylindrical surface to the body.

Abstract: An unmanned aerial vehicle (UAV) configured to land, take off, and magnetically perch on a ferromagnetic cylindrical surface is provided. The UAV includes a body and articulated magnetic legs configured to land and magnetically perch the UAV on the cylindrical surface. Each magnetic leg has a fixed portion coupled to the body and a pivoting portion pivotably coupled to the fixed portion at a pivot axis. The pivoting portion includes a switchable magnet and a single articulation joint that provides the pivoting portion with a single degree of freedom about the pivot axis to passively orient the pivoting portion inward and tangent to the cylindrical surface in response to the pivoting portion contacting the cylindrical surface during the landing, and to passively maintain the inward orientation of the pivoting portion during the takeoff.

Abstract: An unmanned aerial vehicle including a body and a docking mechanism coupled to the body is provided. The docking mechanism secures a magnetic crawler to the body during flight and during landing on a ferromagnetic cylindrical surface. The docking mechanism includes a docking hook that couples to the magnetic crawler and a linear actuator coupling the docking hook to the body. The docking hook includes passive latches that passively release the magnetic crawler from the docking hook onto the cylindrical surface after the landing, receive the magnetic crawler into the docking hook from the cylindrical surface after the releasing, and secure the magnetic crawler to the body during takeoff from the cylindrical surface after the receiving. The linear actuator lowers the docking hook and coupled magnetic crawler from the body to the cylindrical surface, and raises the docking hook and received magnetic crawler from the cylindrical surface to the body.

Abstract: An unmanned aerial vehicle (UAV) configured to land, take off, and magnetically perch on a ferromagnetic cylindrical surface is provided. The UAV includes a body and articulated magnetic legs configured to land and magnetically perch the UAV on the cylindrical surface. Each magnetic leg has a fixed portion coupled to the body and a pivoting portion pivotably coupled to the fixed portion at a pivot axis. The pivoting portion includes a switchable magnet and a single articulation joint that provides the pivoting portion with a single degree of freedom about the pivot axis to passively orient the pivoting portion inward and tangent to the cylindrical surface in response to the pivoting portion contacting the cylindrical surface during the landing, and to passively maintain the inward orientation of the pivoting portion during the takeoff.