US20200207485A1 - Windshield - Google Patents
Windshield Download PDFInfo
- Publication number
- US20200207485A1 US20200207485A1 US16/817,412 US202016817412A US2020207485A1 US 20200207485 A1 US20200207485 A1 US 20200207485A1 US 202016817412 A US202016817412 A US 202016817412A US 2020207485 A1 US2020207485 A1 US 2020207485A1
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- US
- United States
- Prior art keywords
- uav
- panel
- landing area
- facility
- panels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U70/00—Launching, take-off or landing arrangements
- B64U70/90—Launching from or landing on platforms
- B64U70/92—Portable platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/22—Ground or aircraft-carrier-deck installations for handling aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
- B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/22—Ground or aircraft-carrier-deck installations for handling aircraft
- B64F1/222—Ground or aircraft-carrier-deck installations for handling aircraft for storing aircraft, e.g. in hangars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/36—Other airport installations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U70/00—Launching, take-off or landing arrangements
- B64U70/90—Launching from or landing on platforms
- B64U70/95—Means for guiding the landing UAV towards the platform, e.g. lighting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U80/00—Transport or storage specially adapted for UAVs
- B64U80/10—Transport or storage specially adapted for UAVs with means for moving the UAV to a supply or launch location, e.g. robotic arms or carousels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U80/00—Transport or storage specially adapted for UAVs
- B64U80/70—Transport or storage specially adapted for UAVs in containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U80/00—Transport or storage specially adapted for UAVs
- B64U80/80—Transport or storage specially adapted for UAVs by vehicles
- B64U80/86—Land vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/11—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/60—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons
- B64U2101/64—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons for parcel delivery or retrieval
Definitions
- the present disclosure relates to an unmanned aerial vehicle facility.
- Delivery services offered by commercial carriers deliver goods to recipients.
- a typical delivery service maintains a large fleet of vehicles, including airplanes, trucks, and small vehicles. Airplanes and trucks move packages between mail sorting facilities, and smaller vehicles move the packages from the sorting facilities to delivery destinations such as homes or businesses.
- Such delivery services have some drawbacks and may not be efficient in catering to the needs of the consumers or businesses today. For example, such delivery services involve significant investment to procure and maintain the fleet of vehicles, and to manage the human resources required to operate the fleet.
- Another problem with such delivery services is that they may be incapable of delivering the goods in a short amount of time, such as in a few minutes or hours from the time the order is placed by the consumer. However, even if these delivery services can deliver the goods in a short amount of time, it can be very expensive for the consumer.
- UAV unmanned aerial vehicle
- a drone can be utilized to transport packages that can include food, merchandise, or other items.
- UAV delivery service can overcome some of the problems discussed above with respect to the conventional delivery services; however the UAV delivery service can still have certain issues that affect the quality of service.
- UAV delivery services typically require UAV facilities within buildings, such as warehouses, which store packages for delivery. These facilities often require extensive modification, which is costly.
- humans may need to manually transport each package outdoors to provision the package to a UAV before takeoff.
- Such a manual provisioning process can be labor intensive, are subject to the vagaries of human behavior and increase delivery time.
- an unmanned aerial vehicle (UAV) facility comprising a transportable housing for holding a UAV, the housing defining a landing area for the UAV, and a structure comprising wind-reducing netting for reducing wind speed across the landing area.
- UAV unmanned aerial vehicle
- a UAV facility comprising a transportable housing for holding a UAV, the housing defining a landing area for the UAV, and an erectable wind-porous structure for reducing wind speed across the landing area.
- UAV facilities embodying the first and second aspects are transportable, and may be suitable for outdoor use.
- the housing may be mounted upon wheels so that it can be towed by a vehicle.
- the UAV facility may itself be a vehicle.
- the transportable UAV facility may be used by one or more businesses or individual users to house UAVs which deliver packages to recipients. By utilizing such a UAV facility, buildings need not be modified to accommodate UAVs. Businesses, for example, may purchase or rent such a UAV facility and place the UAV facility nearby, such as on a driveway or in a car park.
- the housing may be stocked with items for purchase, and upon receiving an order, the item may be automatically loaded onto a UAV before the UAV takes flight and delivers the item to the customer.
- items may be stocked in a nearby building, and upon receiving an order, a human, robot, vending machine or conveyor system can deposit the ordered item into an ingress/ingestion port on the housing from where it is automatically loaded onto a UAV.
- the transportable nature of the UAV facility allows the facility to be moved between different locations. For example, owners of the UAV facility may move the facility into a garage for additional security. Similarly, the UAV facility may be transported to a maintenance facility if the UAV facility requires repair.
- UAV facilities may be required to withstand a variety of weather conditions, such as rain and snow.
- wind can cause problems during UAV takeoff and landing, and while the UAV is located on the landing area of the UAV housing.
- strong winds can make it difficult for a UAV to land safely and in a controlled manner
- Controlled landing may be required in situations where the UAV is used to collect or drop-off a package, undergo maintenance, or a battery swap procedure, for example. Inaccurate landing may damage the UAV and/or nearby objects, and may injure people within the vicinity of the UAV facility.
- the UAV facility may comprise a structure for reducing wind speed across the landing area/surface.
- the structure may be wind reducing netting, as in the first embodiment, or it may be an erectable wind-porous structure, as in the second embodiment. In either case, protection against the wind is provided.
- the wind speed can be reduced which allows the UAV to operate with reduced impedance from external factors.
- the housing may be suitable for storing one or more UAVs.
- a UAV may be stored within the housing when not in service.
- a UAV may be stored on the landing area.
- the housing may only temporarily hold/house the UAV.
- a UAV may be fully or partially housed within the housing during package collection/drop-off, during maintenance, or during a battery swap or battery recharge procedure.
- the landing area may also be known as a landing surface.
- the landing surface may be an external surface of the housing, or it may be an additional surface mounted or attached to an outer surface of the housing.
- the UAV facility comprises wind reducing netting.
- the netting comprises an open meshed material through which at least a portion of the wind can pass.
- the netting may be formed by intertwining one or more separate materials, such as rope, string, twine, plastic, metal, etc.
- the netting may be monolithic, thereby being formed of a single material comprising apertures. Netting provides a lightweight, inexpensive solution for reducing windspeed.
- porous structures can be more efficient at ameliorating the effects of turbulence than a solid windbreak structure.
- the netting allows a portion of light or other electromagnetic radiation to pass through. This may be desirable in cases where the UAV is equipped with one or more sensors. For example, an onboard camera may still be able to “see” through the netting to allow the UAV to determine its position relative to the ground or landing surface. Similarly, LASER and LIDAR positioning signals can pass through the netting with an acceptable level of attenuation. Additionally, should the UAV collide with the netting, the damage caused to the UAV may be lower than that which would have otherwise occurred if the UAV had collided with a more solid structure.
- the netting also acts as a safety barrier; stopping the UAV from falling onto the ground or pedestrians below, and stopping people or animals from climbing onto the landing area.
- the structure comprising the wind-reducing netting may also comprise one or more rigid elements to support the wind-reducing netting.
- the elements should be rigid enough to support the wind-reducing netting during periods of at least low wind-speeds, without breaking.
- a single rigid element may support the netting.
- the netting may be attached to a frame.
- a plurality of rigid elements may together support the netting.
- the structure is erectable. This allows the netting to be dismantled or folded down.
- the structure is erectable into a first configuration, wherein in the first configuration, the wind-reducing netting extends away from the landing area in a direction above the landing surface.
- the structure may be moveable into a second configuration in which the netting is arranged on the landing area, or is arranged adjacent to a side surface of the housing. A person may also remove the netting by hand, and store it within the housing.
- the wind-reducing netting may be arranged to substantially surround the landing area.
- a single net may extend around the landing area, or a plurality of nets may be suspended around the landing area. By surrounding the landing area, greater protection from the wind can be provided.
- the UAV facility according to the second embodiment comprises an erectable wind-porous structure for reducing wind speed across the landing area.
- the erectable structure is therefore collapsible, meaning that it can be folded down.
- the structure can be erected to reduce wind speed, and be folded down when not required.
- the structure can be folded away as the UAV facility is being transported, for example. This allows the UAV facility to be more easily transported because the UAV facility is more aerodynamic when the structure is in the folded configuration.
- the structure can also be folded away when it is not windy. By folding the structure away during low wind speeds, the airspace around the landing area can be maximized thus providing less of an obstruction during landing and take-off.
- a further advantage provided by the collapsibility of the structure is that the structure provides less of an obstruction during transport. For example, reducing the height of the structure allows the transportable UAV facility to pass under low bridges or other obstructions.
- the erectable wind-porous structure comprises a panel which has a first end and a second end, and which is connected to the housing via a connector assembly.
- the connector assembly is arranged to facilitate movement of the panel with respect to the landing area, the movement being between at least a first position and a second position.
- the panel In the first position, the panel extends away from the landing area in a direction above the landing area, such that the first end of the panel is arranged at a first height.
- the first end of the panel is arranged at a second height, lower than the first height.
- the structure can be erected (i.e. be arranged in the first position), and be folded/collapsed (i.e. be arranged in the second position).
- the first end may also be known as an upper end, because in the first position it is the uppermost end of the panel.
- the second end may also be known as a lower end, because in the first position it is the lower end of the panel.
- the first end of the panel is lower in height than it is in the first position.
- the height may be measured relative to the ground, upon which the UAV facility resides, or it may be measured relative to a base of the housing, for example.
- the connector assembly may comprise one or more connectors.
- a first connector may connect the panel to the housing, and a separate connector may facilitate movement of the panel with respect to the landing area.
- a single connector may connect the panel to the housing and facilitate movement of the panel with respect to the landing area.
- “Extending away from the landing area in a direction above the landing area” means that the panel extends in an upwards, or upwards and outwards, direction such that the first end of the panel is arranged further away from the landing area than the second end of the panel.
- the panel may be arranged substantially vertically, or may be angled inwards or outwards with respect to the landing area.
- Connected to the housing includes either being directly connected to the housing or being indirectly connected to the housing.
- the panel may be connected to the housing via the landing area.
- the UAV facility comprises a drive mechanism which causes the movement between the two positions.
- the drive mechanism may comprise a controller which controls/instructs the movement.
- the drive mechanism may comprise one or more motors, or actuators, for example, which operate to move the structure.
- the connector assembly comprises a hinge to hingedly connect the panel to the housing, thereby facilitating rotational movement from the first position to the second position.
- the panel In the second position, the panel is arranged substantially on top of the landing area. Accordingly, the panel may be folded into a configuration in which it is arranged on top of the landing area (i.e. the panel and landing area are superposed). This configuration means that the UAV facility maintains its original width when the panel is in this folded configuration.
- the panel When on top of the landing area, the panel may be substantially parallel with the landing area, or an acute angle may extend between the panel and the landing area.
- the rotational movement may be towards the landing area. Alternatively, the rotational movement may be away from the landing area, and the panel may then translate onto the landing area.
- the housing comprises a side surface, and in the second position, the panel is arranged substantially adjacent to, and substantially parallel with, at least a portion of the side surface. Accordingly, in the second position the panel may be folded so that it is arranged next to the side of the housing.
- the side surface may be arranged substantially vertically, for example. This arrangement means that the landing platform remains accessible.
- the connector assembly may comprise a hinge to hingedly connect the panel to the housing, to facilitate rotational movement away from the landing area between the first position and the second position. Alternatively, the connector assembly may facilitate a sliding/linear movement between the first position and the second position. In some examples a portion of the panel may abut the side surface.
- the housing comprises a side surface, and in the second position the panel, which may be considered to be a first panel, is arranged substantially adjacent to, and substantially parallel with, at least a portion of the side surface. Then, in the second position, a second panel, which is part of the structure, is arranged substantially on top of the landing area.
- the landing area may comprise a first edge and a second edge.
- the first panel may be arranged along the first edge, and the second panel may be arranged along the second edge.
- the first panel may be folded down by the side of the housing, and the second panel may be folded on top of the landing area. This may be advantageous if, due to the shape and size of the panels, both panels cannot be folded down respective sides of the housing or on top of the landing area.
- the panels are wider at their first, upper end than they are at their second, lower end and the first panel is arranged parallel with the direction of travel during transport.
- the second panel is arranged perpendicular to direction of travel. Because of the shape of the panels, the arrangement in this specific example is more aerodynamic during transport.
- the UAV facility comprises an enclosure extending beneath the landing area, wherein, in the second position, the panel is arranged at least partially within the enclosure. Accordingly, the panel may be moved, positioned or retracted beneath the landing surface. This allows the panel to be stored more securely, and can help improve aerodynamics during transport.
- the connector assembly may comprise a hinge to hingedly connect the panel to the housing to facilitate rotational movement away from the landing area between the first position and an intermediate position, and the connector assembly may further comprise a mechanism to facilitate sliding/linear movement between the intermediate position and the second position.
- the panel in the second position, at least a portion of the panel extends away from the landing area in a direction above the landing area, such that the first end of the panel is arranged at the second height. Accordingly, in the second position the panel still protects the landing area from wind, but is arranged at a lower height. Thus, the height of the panel can be adjusted. This may be useful in low wind speed weather conditions to provide an element of protection, but the reduced height provides less of an obstruction during landing and takeoff.
- the panel may be made of two parts, one of which can be folded down, while the other remains in place, thus reducing the overall height of the structure.
- the panel may comprise a lower panel portion comprising the second end, and an upper panel portion comprising the first end
- the connector assembly may comprise a hinge to hingedly connect the upper panel portion to the lower panel portion and to facilitate rotational movement between the first position and the second position. In the first position, the lower panel portion and the upper panel portion are substantially coplanar and in the second position, the upper panel portion is rotated towards the lower panel portion.
- Movement to the second position may involve folding the panel substantially in half.
- an angle subtended between the lower panel portion and the upper panel portion may be said to be between 170-190 degrees
- an angle between the lower panel portion and the upper panel portion may be said to be between 0-90 degrees.
- the lower panel portion is the portion of the panel which extends away from the landing area to provide an element of wind protection.
- the connector assembly facilitates a sliding movement between the first position and the second position.
- the panel may be moved into the second position by sliding the panel from the higher height to a lower height.
- the connector assembly may comprise a sliding mechanism to provide the sliding movement.
- the connector may comprise a carriage which moves along a guide rail.
- the panel is retractable, thus allowing its height to be adjusted.
- the panel may comprise a lower panel portion comprising the second end, and an upper panel portion comprising the first end. In the first position, the upper panel portion is arranged further above the landing area than the lower panel portion and in the second position, the upper panel portion is translated towards the lower panel portion.
- the panel could therefore be telescopic in that a narrower upper panel portion is translated towards and retracted into a wider lower panel portion.
- the lower panel portion may be offset from upper panel portion such that the portions translate towards each other into an adjacent position.
- the UAV facility may further comprise one or more sensors configured to monitor weather conditions and a controller.
- the controller may be configured to receive sensor data from the one or more sensors and cause the panel to move between at least the first position and the second position, based on the sensor data. Accordingly, the movement between the first and second positions can be automated based on weather conditions.
- the sensor may be a weather sensor, used to measure windspeed, or other weather condition which may infer a change in windspeed.
- a drive mechanism may cause the panel to move in response.
- the panel may initially be located in the second position, and the sensor may measure an increase in windspeed. If the windspeed exceeds a predetermined threshold, the controller can cause the panel to move into the first position, thereby providing protection.
- the UAV facility may further comprise a communications system, configured to receive a data signal from a remote computing system and cause the panel to move between at least the first position and the second position, based on the data signal. Accordingly, the movement between the first and second positions can be automated based on a received signal.
- the UAV facility need not comprise its own sensor.
- it can be beneficial to allow the UAV facility to be remotely operated. For example, a remote computing system can control a plurality of UAV facilities within a geographical location.
- the wind-porous element may be a panel, for example.
- Porosity is a measure of how porous a surface is and is defined as the total area of the voids/apertures on the surface divided by the total area of the surface.
- a solid surface has a porosity of 0.
- the erectable wind-porous structure comprises a wind-porous element which has a porosity between 0.1-0.7 (or 10%-70%).
- the wind porous element has a porosity of between 0.1-0.3.
- a porosity value within this range provides an area large enough to provide protection to the UAV(s) on the landing area, while reducing windspeed and/or turbulence to an acceptable level.
- the first end is arranged further above the landing area than the second end while in the first position.
- the panel may be wind-porous and the porosity of the panel generally increases from the second end towards the first end. Accordingly, the panel has a porosity gradient along the panel, where the panel is more porous at the upper end. The presence of a gradient means that abrupt discontinuities can be avoided, so that the UAV can more stably transition between the wind-protected region and the unprotected region.
- the panel comprises two or more regions, each region having a different porosity.
- the porosity gradient can be provided by having two or more regions spaced in height.
- the regions may have the same height, or may be of different height.
- the panel comprises a first region having a porosity of about 0.1, a second region having a porosity of about 0.3 and a third region having a porosity of about 0.5. It has been found that such a porosity gradient reduces wind speed from about 30 mph to about 10 mph in the vicinity of the landing area.
- the structure delimits a plurality of adjustable apertures and a porosity of the structure is adjustable by varying the size of the apertures. Accordingly, the porosity can be varied. The porosity may be varied depending upon the wind conditions, size of the landing area, and/or mass of the UAVs for example. Varying the porosity allows the airflow characteristics to be manipulated and controlled.
- Some or all of the apertures may be adjustable. The apertures may be of equal size, or they may be of a different size. For example, larger apertures may be towards the top, and therefore fully opening all of the apertures provides a porosity gradient.
- the UAV facility may comprise one or more motors and/or actuators, to facilitate adjustment of the apertures.
- the UAV facility comprises one or more sensors configured to monitor weather conditions and a controller is configured to receive sensor data from the one or more sensors and adjust the size of the apertures, based on the sensor data.
- the aperture size can be varied automatically in response to the sensor data.
- the apertures may be made smaller, thereby reducing the porosity, if the wind speed is detected to increase.
- the UAV facility comprises a communications system, configured to receive a data signal from a remote computing system and adjust the size of the apertures, based on the data signal.
- a communications system configured to receive a data signal from a remote computing system and adjust the size of the apertures, based on the data signal.
- an external computing system may cause the aperture size to be adjusted.
- the instruction may be based on weather conditions, for example.
- the UAV facility comprises a drive mechanism, arranged to adjust a distance between the second end of the panel and the landing area when the panel is arranged in the first position.
- the lower end of the panel can me moved further away from, or closer to the landing surface.
- the distance between the perimeter of the landing area and the panel can be varied. This is advantageous because the area of lowest windspeed is often not located directly behind the panel, and instead may be offset by a certain distance behind the panel.
- the optimum position behind the panel can be dependent upon windspeed, and so in some examples, the distance can be adjusted based on windspeed.
- the structure comprises a plurality of panels for reducing wind speed across the landing area.
- Each of the plurality of panels are connected to the housing via a connector assembly and are moveable between the first position and the second position. Each panel can be moved between the first and second configuration.
- a plurality of panels can provide improved protection from different directions.
- the plurality of panels may be arranged along different sides of the landing area, for example.
- the plurality of panels are arranged to substantially surround the landing area, and in one arrangement may fully-surround the landing area.
- Each panel may be arranged between two adjacent panels.
- Each panel may engage an adjacent panel to lock the panel in place.
- the landing area defines a shape having four sides (such as a rectangle or square), and the plurality of panels comprise four panels for reducing wind speed across the landing area, the four panels being arranged substantially along the four sides.
- the structure may be arranged such that an obtuse angle is subtended between the structure and the landing area.
- the wind-reducing netting or erectable wind-porous structure may be arranged in substantially two-dimensional plane which is angled with respect to the landing area.
- the structure and the landing area define two planes which are not arranged perpendicular to each other. Instead, the structure may be said to lean outwards.
- This arrangement increases the airspace above the landing area within which the UAV can fly. A larger airspace provides less of an obstruction for the UAV during landing and takeoff.
- the obtuse angle is substantially equal to 45 degrees because such an angle has also been found to reduce the abrupt onset of turbulence.
- the housing delimits an aperture through which to receive at least part of the UAV.
- a hole or opening may be provided in an outer surface of the housing, such as the landing surface, which provides the UAV with access to inner parts of the housing and in particular contents therein.
- the UAV may be positioned above or nearby the aperture and a retractable tether or arm passes through the aperture.
- a package, or battery housed within the housing may be coupled to the tether or arm before being passed through the aperture.
- the size of the aperture is such that the UAV cannot fully pass through it.
- the UAV facility may further comprise a moveable platform, wherein the moveable platform defines at least part of the landing area and provides means to move the UAV inside the housing.
- the moveable platform may form the whole landing area/surface, or the landing area may comprise a fixed portion and a moveable portion, where the moveable portion is provided by the moveable platform.
- the moveable platform itself delimits another aperture. For example, the platform may move through a large aperture formed in the housing, and a package may pass through a smaller aperture formed in the platform.
- the UAV facility may further comprise a UAV positioning mechanism arranged on the housing, the UAV positioning mechanism being configured to position the UAV on the landing area.
- the positioning mechanism provides means to further accurately position the UAV on the landing area.
- the positioning mechanism may move the UAV from an initial landing position to a desired position.
- the initial landing position may vary due to a variety of factors, including the effects of wind.
- Example positioning mechanisms are described in U.S. provisional application No. 62/558,192, entitled “Drone Delivery System” and in PCT application number PCT/US18/50926, entitled “Positioning Mechanism”, both of which are hereby incorporated by reference.
- FIG. 1 is a perspective view of an unmanned aerial vehicle facility in accordance with an example
- FIG. 2A is a side view of a UAV located on a moveable platform in accordance with an example
- FIG. 2B is a side view of a UAV having been moved inside a housing by lowering the moveable platform of FIG. 2A ;
- FIGS. 3A-B , 4 A-B, 5 A-B, 6 A-C, 7 A-D, 8 A-D, and 9 A-B are side views of example UAV facilities having an erectable structure
- FIG. 10 is a side view of a porous structure in accordance with an example
- FIG. 11A is a side view of a porous structure having a porosity gradient in accordance with a first example
- FIG. 11B is a side view of a porous structure having a porosity gradient in accordance with a second example
- FIG. 12 is a side view of a structure having adjustable apertures in accordance with an example.
- FIGS. 13A and 13B are side views of a UAV facility having a structure which is moveable with respect to the landing area;
- a UAV facility is a unit which can house a UAV, store packages, provide a landing surface, or act as a UAV battery charging/replacement unit.
- FIG. 1 depicts an example UAV facility 100 .
- the facility 100 comprises a transportable housing 102 for holding a UAV 104 .
- the housing 102 defines a landing area/surface 106 upon which the UAV 104 can land.
- the housing 102 comprises a number of side surfaces 108 . In this example there are four side surfaces, a base, and an upper surface, where the upper surface defines the landing area. In the example of FIG. 1 , the landing area is rectangular, and therefore has four sides, or edges. Other shaped landing areas are envisaged.
- the housing 102 is mounted or attached to a number of wheels 116 to provide the transportability.
- the facility may be towed by a vehicle, or it may be a vehicle itself.
- the housing 102 defines a volume within which packages, UAVs, batteries, and/or other objects can be stored. Packages may be received within the housing via one or more ingress ports 110 . Once loaded into the housing 102 , the packages may be moved to a particular location within the housing 102 before being loaded onto a UAV 104 .
- the housing may delimit an aperture 112 through which at least part of the UAV 104 may pass.
- the UAV 104 may enter the housing 102 via the aperture 112 .
- the UAV may lower a coupling mechanism through the aperture 112 .
- a package 206 shown initially on a loading surface 208 , may be attachable to the coupling mechanism.
- a moveable platform (shown in FIGS. 2A and 2B ) forms part of the landing surface 106 , and is therefore positionable within the aperture 112 .
- FIG. 2A depicts a side view of the UAV facility 100 .
- the UAV 104 has landed on the surface 106 and is positioned upon a moveable platform 202 .
- the UAV facility comprises a UAV positioning mechanism (not shown) arranged on top of the housing 102 .
- a UAV positioning mechanism is useful to position the UAV on the landing area 106 .
- the positioning mechanism may move the UAV from an initial landing position to a desired position, such as on top of the moveable platform 202 .
- the platform 202 may be lowered into the housing 102 by moving one or more bars 204 .
- the bars 204 may be telescopic, for example, and can retract in length to move the platform 202 into the housing 102 .
- a drive system (not shown) may control the lowering and raising of the moveable platform 202 .
- a controller (not shown) may instruct or cause the bars 204 to operate once the UAV 104 is positioned on the moveable platform 202 . In this arrangement, the housing aperture 112 is in a closed position.
- the moveable platform 202 also delimits an aperture.
- the platform aperture is closed by one or more members 210 , so is not visible.
- the one or more members 210 are therefore in a closed configuration, in which they form part of the landing surface 106 in FIG. 2A .
- the drive system may be arranged to move the one or more members 210 into an open configuration.
- FIG. 2B shows the moveable platform 202 in a lowered position.
- the bars 204 have retracted in length such that the platform 202 and UAV 104 are located within the housing 102 .
- the one or more members 210 have also been moved into an open configuration by the drive system.
- the one or more members 210 have been withdrawn into a compartment within the moveable platform 202 , so that the platform aperture 212 is open.
- one or more members 210 may act like a trapdoor and hinged with respect to the moveable platform 202 .
- a coupling mechanism, attached to one end of a tether, has been lowered from a compartment within the UAV 104 to engage the package 206 .
- FIG. 2B therefore shows the package 206 as it is being lifted through the platform aperture 212 and into the UAV compartment. Once received within the UAV compartment, the platform 202 may be raised again to allow the UAV 104 to take flight and deliver the package 206 to a destination.
- the UAV facility 100 comprises a structure 114 for reducing wind speed across the landing area 106 .
- the structure 114 may be a single part, or may be comprised of a plurality of parts.
- the structure 114 acts to shelter the UAV 104 from wind during landing and takeoff, and when the UAV 104 is resting upon the landing surface 106 .
- the structure 114 comprises wind-reducing netting for reducing wind speed across the landing area.
- the netting may be suspended between, or wrapped around one or more rigid elements which support the netting when erected.
- the structure is erectable.
- the structure 114 is an erectable wind-porous structure for reducing wind speed across the landing area.
- the structure 114 can be arranged in two or more different positions/configurations.
- FIGS. 3A-9 depict a variety of example structures which are erectable and can therefore be adjusted.
- FIG. 3A depicts a front view of an example UAV facility 100 and corresponds to a view as seen in the direction of arrow “A” shown in FIG. 1 .
- the example facility 100 comprises a structure comprising one or more panels 314 .
- the panels 314 may be wind-porous.
- the structure may comprise one or more nets suspended between one or more rigid elements.
- FIG. 3A only two side panels 314 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 314 are attached to the housing 102 via respective connector assemblies 320 .
- the connector assemblies 320 comprise one or more hinges to allow the panels 314 to rotate with respect to the landing area 106 .
- the panels 314 are arranged such that an obtuse angle 316 is subtended between the panels and the landing surface 106 .
- the panels 314 may be arranged substantially vertically, in the positions indicated by dashed lines.
- the panels 314 may be arranged such that an acute angle is subtended between the panels and the landing surface 106 .
- the panels 314 are arranged in a first, erected, position in FIG. 3A . In this position, the panels extend away from the landing area 106 and a first, upper end 314 a of the panel is arranged at a first height 318 above the ground. In this position, the panels 314 act to reduce wind speed across the landing area 106 . Preferably, the panels 314 extend above the landing area by a distance such that the first end 314 a extends above the UAV 104 .
- the panels also comprise a second, lower, end 314 b, which is on an opposite side from the first end 314 a. In this example, the second ends 314 b of the panels 314 are connected to the hinges 320 .
- the hinges 320 facilitate rotational movement of the panels 314 with respect to the landing area 106 .
- the panels 314 can rotate/pivot from the first position of FIG. 3A to a second, folded, position shown in FIG. 3B .
- the panels 314 can rotate towards the landing area 106 .
- FIG. 3B depicts the UAV facility 100 of FIG. 3A after the panels 314 have been moved into the second position. In this position, the panels 314 are arranged on top of the landing area 106 .
- both panels may rest on the landing area 106 , or one panel may rest on top of another panel.
- the front and rear panels (not shown) may also be rotated towards the landing area 106 in a similar fashion.
- each panel 314 In this second position the first end 314 a of each panel 314 is arranged at a second height 322 , which is lower than the first height 318 .
- the panels 314 may be arranged in this second position when the UAV facility 100 is not being used, such as during transport of the facility 100 .
- This second position provides a more aerodynamic profile during transportation.
- FIG. 4A depicts a front view of another example UAV facility 100 .
- the UAV facility of this example is arranged such that the panels rotate away from the landing area 106 into a second position in which the panels are adjacent to the side surfaces 108 of the housing 102 , as shown in FIG. 4B .
- the example facility 100 comprises a structure comprising one or more panels 414 .
- the structure may comprise one or more nets suspended between one or more rigid elements.
- FIGS. 3A and 3B only two side panels 414 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 414 are arranged such that an obtuse angle is subtended between the panels and the landing surface 106 . In other examples, however, the panels 414 may be arranged substantially vertically or be arranged such that an acute angle is subtended between the panels and the landing surface 106 .
- the panels 414 are attached to the housing 102 via respective connector assemblies 420 . such as one or more hinges to allow the panels 414 to rotate with respect to the landing area 106 .
- the panels 414 are arranged in a first, erected, position in FIG. 4A . In this position, the panels extend away from the landing area 106 and a first, upper end 414 a of the panel is arranged at a first height 418 above the ground. In this position, the panels 414 act to reduce wind speed across the landing area 106 .
- the panels also comprise a second, lower, end 414 b , which is on an opposite side from the first end 414 a.
- the hinges 420 facilitate rotational movement of the panels 414 with respect to the landing area 106 .
- the panels 414 can rotate/pivot from the first position of FIG. 4A to a second, folded, position shown in FIG. 4B .
- the panels 414 can rotate away from the landing area 106 .
- FIG. 4B depicts the UAV facility 100 of FIG. 4A after the panels 414 have been moved into the second position. In this position, the panels 414 are arranged adjacent to, and substantially parallel with, at least a portion of a side surface 108 of the housing 102 .
- the front and rear panels may also be rotated away from the landing area 106 in a similar fashion.
- each panel 414 In this second position the first end 414 a of each panel 414 is arranged at a second height 422 , which is lower than the first height 418 .
- the panels 414 may be arranged in this second position when the UAV facility 100 is not being used, such as during transport of the facility 100 .
- This second position provides a more aerodynamic profile during transportation.
- FIG. 5A depicts a front view of another example UAV facility 100 .
- the UAV facility of this example is arranged such that one or more panels rotate into a second position in which the panels are adjacent to the side surfaces 108 of the housing 102 , and one or more other panels rotate into a second position in which the panels are on top of the landing area 106 .
- This configuration is particularly advantageous in situations where the shape or size of the panels do not permit all of the panels to be folded on top of the landing area 106 or down the sides of the housing 102 .
- the example facility 100 comprises a structure comprising two or more panels 514 .
- the structure may comprise two or more nets suspended between rigid elements.
- a front panel is depicted.
- the panel comprises a first end 514 a that is longer in length than a second end 514 b. At least one side panel is also present, but is obscured from view. A rear panel may also be present in some examples.
- the panel 514 is shaped like an isosceles trapezium such that the base angles 516 are equal. This means that the side panels are arranged so that an obtuse angle of equal measure is subtended between the side panel and the landing area.
- the base angles 516 are substantially equal to 45 degrees because such an angle has been found to reduce the abrupt onset of turbulence.
- the panels 514 are attached to the housing 102 via respective connector assemblies 520 .
- the connector assemblies 520 comprise one or more hinges to allow the panels 514 to rotate with respect to the landing area 106 .
- the panels 514 are arranged in a first, erected, position in FIG. 5A . In this position, the panels extend away from the landing area 106 and first, upper ends 514 a of the panels are arranged at a first height 518 above the ground. In this position, the panels 514 act to reduce wind speed across the landing area 106 .
- the hinges 520 facilitate rotational movement of the panels 514 with respect to the landing area 106 .
- the front and/or rear panels 514 can rotate/pivot from the first position of FIG. 5A towards the landing area into a second, folded, position shown in FIG. 5B .
- the side panels 514 can rotate/pivot from the first position of FIG. 5A away from the landing area into a second, folded, position shown in FIG. 5B .
- This configuration provides a particularly aerodynamic profile in situations where the UAV facility 100 is transported in a direction out of the page.
- the front/rear panels 514 can rotate away from the landing area 106 and the side panels 514 can rotate towards, and on top of, the landing area 106 .
- FIG. 5B depicts the UAV facility 100 of FIG. 5A after the panels 514 have been moved into the second position.
- the side panels 514 are arranged adjacent to, and substantially parallel with, at least a portion of a side surface 108 of the housing 102 .
- the front and rear panels are arranged substantially on top of the landing area 106 .
- the first end 514 a of the side panels 514 are arranged at a second height 522 , which is lower than the first height 518 .
- the first end 514 a of the front and rear panels 514 are arranged at a third height 524 , which is lower than the first height 518 but higher than the second height 522 .
- FIG. 6A depicts a front view of another example UAV facility 100 .
- the UAV facility of this example is arranged such that one or more panels may be stored within an enclosure located directly beneath the landing area. This configuration is particularly advantageous to reduce wind resistance during transportation of the UAV facility.
- the example facility 100 comprises a structure comprising one or more panels 614 .
- the structure may comprise one or more nets suspended between rigid elements.
- FIG. 6A only two side panels 614 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 614 are attached to the housing 102 via respective connector assemblies 620 .
- the connector assemblies 620 comprise one or more hinges to allow the panels 614 to rotate with respect to the landing area 106 .
- the connector assemblies 620 of this example further comprise a mechanism to allow the panels 614 to translate such that they may be moved at least partially into the enclosure 626 .
- Other types of connector assemblies 620 may be used which allow the panels 614 to be moved into the enclosure 626 .
- the enclosure 626 which is part of the housing, is formed directly beneath the landing area 106 .
- the enclosure 626 may remain open once the panels 614 are stowed within the enclosure, or the housing 102 may comprise one or more doors to close the enclosure 626 .
- the panels 614 are arranged in a first, erected, position in FIG. 6A . In this position, the panels extend away from the landing area 106 and first, upper ends 614 a of the panels are arranged at a first height 618 above the ground. In this position, the panels 614 act to reduce wind speed across the landing area 106 . In this example, second ends 614 b of the panels 614 are connected to the connector assembly 620 .
- the connector assemblies 620 facilitate rotational movement of the panels 614 with respect to the landing area 106 .
- the panels 614 can rotate/pivot from the first position of FIG. 6A away from the landing area into an intermediate position shown in FIG. 6B .
- FIG. 6B depicts the UAV facility 100 of FIG. 6A after the panels 614 have been moved into the intermediate position. In this position, the panels 614 are arranged substantially parallel with the landing area 106 and the first ends 614 a of the side panels 614 are arranged at a second height 622 , which is lower than the first height 618 .
- the connector assemblies 620 also facilitate translational/linear movement of the panels 614 with respect to the landing area 106 .
- the panels 614 can slide from the intermediate position of FIG. 6B and into the enclosure 626 located underneath the landing area 106 into the position shown in FIG. 6C .
- FIG. 6C depicts the UAV facility 100 of FIG. 6A after the panels 614 have been moved into a second position. In this position, the panels 614 are arranged underneath, and are substantially parallel with, the landing area 106 . In this position the first end 614 a of the side panels 614 are arranged at the second height 622 . In some examples, the panels 614 may be fully housed within the enclosure 626 . In other examples, at least a portion of the panel 614 may extend out of the enclosure 626 .
- FIG. 7A depicts a front view of another example UAV facility 100 .
- the UAV facility of this example comprises panels which have an upper panel portion and a lower panel portion which are pivotable with respect to each other.
- the upper panel portion can be rotated relative to the lower panel portion to reduce the overall height of the structure.
- the lower panel portion can remain in its original position such that a portion of the panel still extends away from the landing area.
- the example facility 100 comprises a structure comprising one or more panels 714 , each having an upper panel portion 728 and a lower panel portion 730 .
- FIG. 7A only two side panels 714 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 714 are arranged such that an obtuse angle is subtended between the panels and the landing surface 106 . In other examples, however, the panels 714 may be arranged substantially vertically.
- the panels 714 are arranged in a first, erected, position in FIG. 7A . In this position, the panels extend away from the landing area 106 and a first, upper end 714 a of the upper panel portion 728 is arranged at a first height 718 above the ground.
- the lower panel portion 730 and the upper panel portion 728 are said to be substantially coplanar because an angle subtended between the panel portions 728 , 730 is approximately 180 degrees.
- the lower panel portion 730 comprises a second, lower, end 714 b, which is on an opposite side of the panel 714 from the first end 714 a.
- the panels 714 are attached to the housing 102 via respective connector assemblies.
- the connector assemblies 720 comprise two connectors 720 a, 720 b.
- the first connector 720 a connects the lower panel portion 730 to the housing 102 .
- the second connector 720 b such as a hinge, connects the lower panel portion 730 to the upper panel portion 728 and allows the two portions 728 , 730 to rotate with respect to each other.
- the first connector 720 a is also a hinge, so that the whole panel 714 may rotate with respect to the landing surface.
- the second connector 720 b facilitates rotational movement of the upper panel portion 728 with respect to the landing area 106 and the lower panel portion 730 .
- the upper panel portion 728 can rotate/pivot from the first position of FIG. 7A towards the lower panel portion 730 to a second, folded, position shown in FIG. 7B . In this position, an acute angle is subtended between the panel portions 728 , 730 .
- the front and rear panels may also behave in a similar fashion.
- the first end 714 a of each panel 714 is arranged at a second height 722 , which is lower than the first height 718 .
- the panels 714 may be arranged in this second position when the UAV facility 100 is not being used, such as during transport of the facility 100 , or at times when the wind speed is relatively slow. This second position provides less protection, but increases the airspace volume above the landing area.
- FIG. 7C corresponds to a view as seen in the direction of arrow “B” shown in FIG. 7A .
- the upper panel portion 728 in this example has a length dimension that is greater than that of the lower panel portion 730 . In other examples the upper and lower panel portions have substantially the same length.
- FIG. 7D shows the upper panel portion 728 after being rotated into the second position.
- FIG. 8A depicts a front view of another example UAV facility 100 .
- the UAV facility of this example is arranged such that the connector assemblies facilitate a sliding, linear movement of the panels. This allows the overall height of the structure to be reduced.
- the example facility 100 comprises a structure comprising one or more panels 814 .
- the structure may comprise one or more nets suspended between one or more rigid elements.
- FIG. 8A only two side panels 814 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 814 are arranged substantially vertically in a first, erected, position. In this position, the panels 814 extend away from the landing area 106 and a first, upper end 814 a of the panel is arranged at a first height 818 above the ground. In this position, the panels 814 act to reduce wind speed across the landing area 106 .
- the panels also comprise a second, lower, end 814 b, which is on an opposite side from the first end 814 a.
- the panels 814 are attached to the housing 102 via respective connector assemblies 820 .
- the connector assemblies 820 facilitate linear movement of the panels 814 .
- a connector assembly may comprise one or more guide rails, and the panel 814 is guided along the one or more guide rails.
- the connector assemblies 820 facilitate a sliding movement of the panels 814 .
- the panels 814 can slide linearly from the first position of FIG. 8A to a second, reduced height position shown in FIG. 8B .
- this second position at least a portion of the panels 814 is arranged adjacent to, and substantially parallel with, at least a portion of a side surface 108 of the housing 102 .
- a portion of the panels 814 may also extend away from the landing area to provide an element of wind protection.
- the first end 814 a may be level with, or below the landing area 106 .
- the first end 814 a of each panel 814 is arranged at a second height 822 , which is lower than the first height 818 .
- FIG. 8C corresponds to a view as seen in the direction of arrow “C” shown in FIG. 8A .
- FIG. 8D shows a side panel 814 after being moved into the second, reduced height, position.
- FIG. 9A depicts a front view of another example UAV facility 100 .
- the height of the structure can be reduced.
- the structure of this example is telescopic in nature, so that a portion of the structure can be translated linearly to a lower height.
- the example facility 100 comprises a structure comprising one or more panels 914 , each having an upper panel portion 928 and a lower panel portion 930 .
- FIG. 9A only two side panels 914 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 914 are arranged in a first, erected, position in FIG. 9A . In this position, the panels extend away from the landing area 106 and the upper panel portion 928 is arranged further above the landing area 106 than the lower panel portion 930 .
- a first, upper end 914 a of the upper panel portion 928 is arranged at a first height 918 above the ground.
- the lower panel portion 930 is wider than the upper panel portion 928 so that the upper panel portion 928 can be received within it.
- the lower panel portion 930 may be narrower than the upper panel portion 928 so that the lower panel portion 928 is received within the upper panel portion 928 .
- the lower panel portion 930 comprises a second, lower, end 914 b, which is on an opposite side of the panel 914 to the first end 914 a.
- the panels 914 are attached to the housing 102 via respective connector assemblies 920 .
- the connector assemblies 920 facilitate a sliding movement between a first, maximum height position, and a second, reduced height position.
- the upper panel portion 928 can slide linearly from the first position of FIG. 9A to a second, reduced height position shown in FIG. 9B .
- this second position at least a portion of the panels 914 extend away from the landing area to provide an element of wind protection and the first ends 914 a of each panel 914 are arranged at a second height 922 , which is lower than the first height 918 .
- the panels 914 may be arranged in this second position when the UAV facility 100 is not being used, such as during transport of the facility 100 , or at times when the wind speed is relatively slow. This second position provides less protection, but provides less obstruction during landing and takeoff of the UAV.
- the structures can be manually moved between the first and second positions.
- the movement of the structures can be at least partially automated.
- the UAV facility may comprise a controller, such as a processor, and a drive mechanism which causes the movement of the erectable structure between the two positions.
- the controller may instruct the drive mechanism to cause the structure to be moved between the first and second positions.
- the drive mechanism may comprise one or more motors, or actuators, for example, which operate to move the structure.
- the example UAV facility 100 further comprises one or more sensors 150 configured to monitor weather conditions. Based on sensor data received from the sensors 150 , a controller can cause the structure to move between the first position and the second position. For example, one or more panels may initially be in the second, folded, configuration. The sensors 150 may detect an increase in wind speed, and the controller may determine that the panels need to be erected. Accordingly, the controller instructs the drive mechanism to erect the panels in order to provide protection from the wind.
- the example UAV facility 100 also comprises a communications system 152 (shown depicted in FIG. 1 ).
- the communications system 152 can receive a data signal from a remote computing system and cause the structure to move between the first position and the second position, based on the data signal.
- a human operator located at the remote computing system may cause a signal to be sent to the UAV facility 100 to cause the structure to move.
- the signal may be sent without instruction from a human.
- weather data received or measured at the remote computing system may trigger the signal to be sent.
- FIGS. 1-9B comprises a wind porous element to allow wind to permeate through the structure.
- the panels described in FIGS. 3A-9B may be wind porous.
- FIG. 10 depicts an example panel 1014 that is wind porous.
- the panel comprises a solid portion 1002 , and a plurality of apertures/voids 1004 .
- the apertures may be provided by drilling or cutting holes in an initially solid panel 1014 until the required porosity is achieved.
- the panel 1014 may be initially formed or molded with apertures present.
- the apertures in FIG. 10 are distributed evenly across the panel 1014 .
- FIG. 11A depicts another panel 1114 that is wind porous. Unlike the panel of FIG. 10 , the apertures are not evenly distributed across the surface of the panel. Instead, the porosity of the panel 1114 generally increases from the second, lower, end 1114 b of the panel towards the first, upper end 1114 a. Accordingly, the panel 1114 has a porosity gradient along the panel 1114 , where the panel 1114 is more porous at the upper end 1114 a. In one example, the porosity may be close to 0 the second end 1114 b, and be closer towards 1 (such as 0.7) at the first end 1114 a.
- FIG. 11B depicts another panel 1116 that is wind porous and has a porosity gradient that increases from the second, lower end 1116 b of the panel towards the first, upper end 1116 a.
- the panel comprises three distinct regions 1118 a, 1118 b and 1118 c. Within each region the apertures are substantially equally distributed so that the porosity within each region is uniform (in FIG. 11B the apertures are omitted for illustrative purposes). However, the porosity differs between each of the three distinct regions 1118 a, 1118 b and 1118 c.
- the lower region 1118 c has a porosity of about 0.1
- the middle region 1118 b has a porosity of about 0.3
- the upper region 1118 c has a porosity of about 0.5.
- the lower region 1118 c has a porosity of 0.07
- the middle region 1118 b has a porosity of 0.29
- the upper region 1118 c has a porosity of 0.46. It has been found that such porosity values are particularly effective at reducing wind speed from about 30 mph to less than about 10 mph. At this reduced windspeed level certain UAVs can fly with little disturbance.
- FIG. 11B comprises three distinct regions of differing porosity, there may be two or more distinct regions having different porosities.
- FIG. 12 depicts another panel 1214 that can be wind porous. Unlike the panels of FIGS. 10, 11A and 11B , the panel 1214 comprises a plurality of apertures that are closeable.
- the panel 1214 comprises a solid portion 1202 , and a plurality of adjustable size apertures/voids 1204 a - c .
- the apertures may be provided by valves, for example, which can open and close.
- Aperture 1204 a is shown to be fully closed
- aperture 1204 b is shown to be fully open
- aperture 1204 c is shown to be partially open.
- Movable members may move to close respective apertures, for example.
- the apertures can either be open or closed.
- the aperture size can be selected by partially opening the aperture.
- the porosity of the panel can be set to a desired level. Different wind conditions may favor different porosities, for example. Similarly, a porosity gradient can be provided by opening more apertures at one end of the panel.
- the moveable members which close the apertures are themselves porous. Accordingly, even when all of the apertures are closed, the panel 1214 may still have an inherent porosity. In one variant, the porosity of the respective moveable members varies as a function of location between the first and second ends 1214 a, 1214 b of the panel 1214 . Accordingly, even when all of the apertures are closed, the panel 1214 may have an inherent porosity gradient.
- the aperture size can be varied based the weather conditions measured by one or more sensors 150 (shown in FIG. 1 ).
- a controller can cause the aperture size to be adjusted based on the sensor data.
- the aperture size can be varied based on a data signal received from a remote computing system.
- the communications system 152 may receive a data signal instructing the aperture size to be adjusted.
- the data signal may comprise weather data, and the communications system 152 determines whether to adjust the aperture size based on the received weather data.
- FIG. 13A depicts a front view of another example UAV facility 100 .
- the features of this example may be incorporated into any of those examples described in FIGS. 3A-9B .
- the structure can be moved to adjust the distance between the structure and the landing area. For example, the lower end of the structure can me moved further away from, or closer to the landing area.
- the example facility 100 comprises a structure comprising one or more panels 1314 .
- the structure may comprise one or more nets suspended between rigid elements.
- FIG. 13A only two side panels 1314 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes.
- the panels 1314 are attached to the housing 102 via respective connector assemblies 1320 .
- the connector assemblies 1320 comprise a mechanism to allow the panels 1314 to translate so that they may be moved away from the landing area 106 .
- the connector assemblies may comprise one or more extension members 1326 which move along a guide rail.
- the panels 1314 are arranged in a first, erected, position in FIG. 13A .
- the second end 1314 b of the panel is arranged directly adjacent to an edge 106 a of the landing area.
- a drive mechanism (not shown) may be configured to adjust a distance between the second end 1314 b of the panel 1314 and the landing area 106 when the panel is arranged in this first position.
- FIG. 13B depicts the UAV facility 100 of FIG. 13A after the drive mechanism has caused the panels 1314 to be moved away from the landing area 106 .
- the distance between the second end 1314 b of the panel 1314 and the edge 106 a of the landing area has increased when compared to the position of FIG. 13A .
- Moving the panels 1314 further and away from the landing area 106 can control and adjust the turbulence at different positions across the landing area 106 .
- the drive mechanism adjusts the distance between the second end 1314 b of the panel and the landing area 106 based on sensor data received from one or more sensors 150 (shown in FIG. 1 ). In other examples, the drive mechanism adjusts the distance between the second end 1314 b of the panel and the landing area 106 based on a data signal received from a remote computing system via communications system 152 (also shown in FIG. 1 ).
- the UAV facility is considered to be transportable.
- the housing is transportable.
- the UAV facility is stationary, and not transportable.
- the UAV facility may not comprise wheels.
- the structure for reducing wind speed across the landing area can include any or all of the above described features.
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Abstract
Description
- This application is a continuation of International Application No. PCT/US2018/050949, filed Sep. 13, 2018, which claims the benefit of U.S. Provisional Application No. 62/558,192, filed Sep. 13, 2017, and claims priority to GB Application No. GB 1812484.2, filed Jul. 31, 2018, under 35 U.S.C. § 119(a). Each of the above-referenced patent applications is incorporated by reference in its entirety.
- The present disclosure relates to an unmanned aerial vehicle facility.
- Delivery services offered by commercial carriers deliver goods to recipients. A typical delivery service maintains a large fleet of vehicles, including airplanes, trucks, and small vehicles. Airplanes and trucks move packages between mail sorting facilities, and smaller vehicles move the packages from the sorting facilities to delivery destinations such as homes or businesses. Such delivery services have some drawbacks and may not be efficient in catering to the needs of the consumers or businesses today. For example, such delivery services involve significant investment to procure and maintain the fleet of vehicles, and to manage the human resources required to operate the fleet. Another problem with such delivery services is that they may be incapable of delivering the goods in a short amount of time, such as in a few minutes or hours from the time the order is placed by the consumer. However, even if these delivery services can deliver the goods in a short amount of time, it can be very expensive for the consumer.
- An unmanned aerial vehicle (UAV), such as a drone, can be utilized to transport packages that can include food, merchandise, or other items. Such a UAV delivery service can overcome some of the problems discussed above with respect to the conventional delivery services; however the UAV delivery service can still have certain issues that affect the quality of service. For instance, UAV delivery services typically require UAV facilities within buildings, such as warehouses, which store packages for delivery. These facilities often require extensive modification, which is costly. Alternatively, humans may need to manually transport each package outdoors to provision the package to a UAV before takeoff. Such a manual provisioning process can be labor intensive, are subject to the vagaries of human behavior and increase delivery time.
- Accordingly, there is a need for an improved UAV facility which overcomes problems with existing UAV facilities.
- According to a first aspect of the present disclosure, there is provided an unmanned aerial vehicle (UAV) facility comprising a transportable housing for holding a UAV, the housing defining a landing area for the UAV, and a structure comprising wind-reducing netting for reducing wind speed across the landing area.
- According to a second aspect of the present disclosure, there is provided a UAV facility, comprising a transportable housing for holding a UAV, the housing defining a landing area for the UAV, and an erectable wind-porous structure for reducing wind speed across the landing area.
- UAV facilities embodying the first and second aspects are transportable, and may be suitable for outdoor use. For example, the housing may be mounted upon wheels so that it can be towed by a vehicle. Alternatively, the UAV facility may itself be a vehicle. The transportable UAV facility may be used by one or more businesses or individual users to house UAVs which deliver packages to recipients. By utilizing such a UAV facility, buildings need not be modified to accommodate UAVs. Businesses, for example, may purchase or rent such a UAV facility and place the UAV facility nearby, such as on a driveway or in a car park. The housing may be stocked with items for purchase, and upon receiving an order, the item may be automatically loaded onto a UAV before the UAV takes flight and delivers the item to the customer. Alternatively, items may be stocked in a nearby building, and upon receiving an order, a human, robot, vending machine or conveyor system can deposit the ordered item into an ingress/ingestion port on the housing from where it is automatically loaded onto a UAV.
- The transportable nature of the UAV facility allows the facility to be moved between different locations. For example, owners of the UAV facility may move the facility into a garage for additional security. Similarly, the UAV facility may be transported to a maintenance facility if the UAV facility requires repair.
- Such UAV facilities may be required to withstand a variety of weather conditions, such as rain and snow. In addition, wind can cause problems during UAV takeoff and landing, and while the UAV is located on the landing area of the UAV housing. For example, strong winds can make it difficult for a UAV to land safely and in a controlled manner Controlled landing may be required in situations where the UAV is used to collect or drop-off a package, undergo maintenance, or a battery swap procedure, for example. Inaccurate landing may damage the UAV and/or nearby objects, and may injure people within the vicinity of the UAV facility.
- To provide protection from the wind, the UAV facility may comprise a structure for reducing wind speed across the landing area/surface. The structure may be wind reducing netting, as in the first embodiment, or it may be an erectable wind-porous structure, as in the second embodiment. In either case, protection against the wind is provided. Thus, as a UAV comes in to land, takes off, or rests upon the landing surface, the wind speed can be reduced which allows the UAV to operate with reduced impedance from external factors.
- The housing may be suitable for storing one or more UAVs. For example, a UAV may be stored within the housing when not in service. In some arrangements, a UAV may be stored on the landing area. The housing may only temporarily hold/house the UAV. For example, a UAV may be fully or partially housed within the housing during package collection/drop-off, during maintenance, or during a battery swap or battery recharge procedure.
- The landing area may also be known as a landing surface. The landing surface may be an external surface of the housing, or it may be an additional surface mounted or attached to an outer surface of the housing.
- As mentioned, the UAV facility according to the first embodiment comprises wind reducing netting. The netting comprises an open meshed material through which at least a portion of the wind can pass. The netting may be formed by intertwining one or more separate materials, such as rope, string, twine, plastic, metal, etc. Alternatively, the netting may be monolithic, thereby being formed of a single material comprising apertures. Netting provides a lightweight, inexpensive solution for reducing windspeed.
- It has been found that porous structures can be more efficient at ameliorating the effects of turbulence than a solid windbreak structure. In addition, the netting allows a portion of light or other electromagnetic radiation to pass through. This may be desirable in cases where the UAV is equipped with one or more sensors. For example, an onboard camera may still be able to “see” through the netting to allow the UAV to determine its position relative to the ground or landing surface. Similarly, LASER and LIDAR positioning signals can pass through the netting with an acceptable level of attenuation. Additionally, should the UAV collide with the netting, the damage caused to the UAV may be lower than that which would have otherwise occurred if the UAV had collided with a more solid structure.
- In some scenarios, the netting also acts as a safety barrier; stopping the UAV from falling onto the ground or pedestrians below, and stopping people or animals from climbing onto the landing area.
- The structure comprising the wind-reducing netting may also comprise one or more rigid elements to support the wind-reducing netting. The elements should be rigid enough to support the wind-reducing netting during periods of at least low wind-speeds, without breaking. A single rigid element may support the netting. For example, the netting may be attached to a frame. Alternatively, a plurality of rigid elements may together support the netting.
- In some examples, the structure is erectable. This allows the netting to be dismantled or folded down. In a specific example, the structure is erectable into a first configuration, wherein in the first configuration, the wind-reducing netting extends away from the landing area in a direction above the landing surface. The structure may be moveable into a second configuration in which the netting is arranged on the landing area, or is arranged adjacent to a side surface of the housing. A person may also remove the netting by hand, and store it within the housing.
- In certain examples, the wind-reducing netting may be arranged to substantially surround the landing area. For example, a single net may extend around the landing area, or a plurality of nets may be suspended around the landing area. By surrounding the landing area, greater protection from the wind can be provided.
- As mentioned, the UAV facility according to the second embodiment comprises an erectable wind-porous structure for reducing wind speed across the landing area.
- The erectable structure is therefore collapsible, meaning that it can be folded down. Thus, the structure can be erected to reduce wind speed, and be folded down when not required. The structure can be folded away as the UAV facility is being transported, for example. This allows the UAV facility to be more easily transported because the UAV facility is more aerodynamic when the structure is in the folded configuration. The structure can also be folded away when it is not windy. By folding the structure away during low wind speeds, the airspace around the landing area can be maximized thus providing less of an obstruction during landing and take-off. A further advantage provided by the collapsibility of the structure is that the structure provides less of an obstruction during transport. For example, reducing the height of the structure allows the transportable UAV facility to pass under low bridges or other obstructions.
- By being wind-porous, a portion of the wind can pass through the structure. As mentioned, this is often more effective than a solid structure. Solid structures can cause an area of low pressure to form behind the structure, which in turn causes air to flow into the area of low pressure from above. This creates turbulence and reduces protection behind the structure. A porous structure allows a portion of air to flow through the structure, which moderates the area of low pressure and turbulence. This can provide protection from the wind over a larger area. In addition, by having a structure that is both wind-porous and erectable in nature provides a synergistic effect in which the overall transportability of the UAV facility is improved. Both features combine to reduce drag during transportation, should the structure be attached to the UAV facility.
- In some arrangements, the erectable wind-porous structure comprises a panel which has a first end and a second end, and which is connected to the housing via a connector assembly. The connector assembly is arranged to facilitate movement of the panel with respect to the landing area, the movement being between at least a first position and a second position. In the first position, the panel extends away from the landing area in a direction above the landing area, such that the first end of the panel is arranged at a first height. In the second position the first end of the panel is arranged at a second height, lower than the first height. Thus, the structure can be erected (i.e. be arranged in the first position), and be folded/collapsed (i.e. be arranged in the second position).
- The first end may also be known as an upper end, because in the first position it is the uppermost end of the panel. The second end may also be known as a lower end, because in the first position it is the lower end of the panel.
- Thus, in the second position, the first end of the panel is lower in height than it is in the first position. The height may be measured relative to the ground, upon which the UAV facility resides, or it may be measured relative to a base of the housing, for example.
- The connector assembly may comprise one or more connectors. For example, a first connector may connect the panel to the housing, and a separate connector may facilitate movement of the panel with respect to the landing area. Alternatively, a single connector may connect the panel to the housing and facilitate movement of the panel with respect to the landing area.
- “Extending away from the landing area in a direction above the landing area” means that the panel extends in an upwards, or upwards and outwards, direction such that the first end of the panel is arranged further away from the landing area than the second end of the panel. The panel may be arranged substantially vertically, or may be angled inwards or outwards with respect to the landing area.
- “Connected to the housing” includes either being directly connected to the housing or being indirectly connected to the housing. For example, the panel may be connected to the housing via the landing area.
- In some examples, the UAV facility comprises a drive mechanism which causes the movement between the two positions. The drive mechanism may comprise a controller which controls/instructs the movement. The drive mechanism may comprise one or more motors, or actuators, for example, which operate to move the structure.
- In one arrangement, the connector assembly comprises a hinge to hingedly connect the panel to the housing, thereby facilitating rotational movement from the first position to the second position. In the second position, the panel is arranged substantially on top of the landing area. Accordingly, the panel may be folded into a configuration in which it is arranged on top of the landing area (i.e. the panel and landing area are superposed). This configuration means that the UAV facility maintains its original width when the panel is in this folded configuration. When on top of the landing area, the panel may be substantially parallel with the landing area, or an acute angle may extend between the panel and the landing area. The rotational movement may be towards the landing area. Alternatively, the rotational movement may be away from the landing area, and the panel may then translate onto the landing area.
- In another arrangement, the housing comprises a side surface, and in the second position, the panel is arranged substantially adjacent to, and substantially parallel with, at least a portion of the side surface. Accordingly, in the second position the panel may be folded so that it is arranged next to the side of the housing. The side surface may be arranged substantially vertically, for example. This arrangement means that the landing platform remains accessible. The connector assembly may comprise a hinge to hingedly connect the panel to the housing, to facilitate rotational movement away from the landing area between the first position and the second position. Alternatively, the connector assembly may facilitate a sliding/linear movement between the first position and the second position. In some examples a portion of the panel may abut the side surface.
- In a further arrangement the housing comprises a side surface, and in the second position the panel, which may be considered to be a first panel, is arranged substantially adjacent to, and substantially parallel with, at least a portion of the side surface. Then, in the second position, a second panel, which is part of the structure, is arranged substantially on top of the landing area.
- The landing area may comprise a first edge and a second edge. The first panel may be arranged along the first edge, and the second panel may be arranged along the second edge. The first panel may be folded down by the side of the housing, and the second panel may be folded on top of the landing area. This may be advantageous if, due to the shape and size of the panels, both panels cannot be folded down respective sides of the housing or on top of the landing area. In a specific example, the panels are wider at their first, upper end than they are at their second, lower end and the first panel is arranged parallel with the direction of travel during transport. Similarly, in this specific example, the second panel is arranged perpendicular to direction of travel. Because of the shape of the panels, the arrangement in this specific example is more aerodynamic during transport.
- In another arrangement, the UAV facility comprises an enclosure extending beneath the landing area, wherein, in the second position, the panel is arranged at least partially within the enclosure. Accordingly, the panel may be moved, positioned or retracted beneath the landing surface. This allows the panel to be stored more securely, and can help improve aerodynamics during transport. The connector assembly may comprise a hinge to hingedly connect the panel to the housing to facilitate rotational movement away from the landing area between the first position and an intermediate position, and the connector assembly may further comprise a mechanism to facilitate sliding/linear movement between the intermediate position and the second position.
- In a further arrangement, in the second position, at least a portion of the panel extends away from the landing area in a direction above the landing area, such that the first end of the panel is arranged at the second height. Accordingly, in the second position the panel still protects the landing area from wind, but is arranged at a lower height. Thus, the height of the panel can be adjusted. This may be useful in low wind speed weather conditions to provide an element of protection, but the reduced height provides less of an obstruction during landing and takeoff.
- In an example of this further arrangement, the panel may be made of two parts, one of which can be folded down, while the other remains in place, thus reducing the overall height of the structure. For example, the panel may comprise a lower panel portion comprising the second end, and an upper panel portion comprising the first end, and the connector assembly may comprise a hinge to hingedly connect the upper panel portion to the lower panel portion and to facilitate rotational movement between the first position and the second position. In the first position, the lower panel portion and the upper panel portion are substantially coplanar and in the second position, the upper panel portion is rotated towards the lower panel portion.
- Movement to the second position may involve folding the panel substantially in half. In the first position, an angle subtended between the lower panel portion and the upper panel portion may be said to be between 170-190 degrees, and in the second position, an angle between the lower panel portion and the upper panel portion may be said to be between 0-90 degrees. Thus, in the second position, the lower panel portion is the portion of the panel which extends away from the landing area to provide an element of wind protection.
- In another example of this further arrangement, the connector assembly facilitates a sliding movement between the first position and the second position. Accordingly, the panel may be moved into the second position by sliding the panel from the higher height to a lower height. The connector assembly may comprise a sliding mechanism to provide the sliding movement. For example, the connector may comprise a carriage which moves along a guide rail. In a specific example, the panel is retractable, thus allowing its height to be adjusted. For example, the panel may comprise a lower panel portion comprising the second end, and an upper panel portion comprising the first end. In the first position, the upper panel portion is arranged further above the landing area than the lower panel portion and in the second position, the upper panel portion is translated towards the lower panel portion. The panel could therefore be telescopic in that a narrower upper panel portion is translated towards and retracted into a wider lower panel portion. Alternatively, the lower panel portion may be offset from upper panel portion such that the portions translate towards each other into an adjacent position.
- The UAV facility may further comprise one or more sensors configured to monitor weather conditions and a controller. The controller may be configured to receive sensor data from the one or more sensors and cause the panel to move between at least the first position and the second position, based on the sensor data. Accordingly, the movement between the first and second positions can be automated based on weather conditions. For example, the sensor may be a weather sensor, used to measure windspeed, or other weather condition which may infer a change in windspeed. A drive mechanism may cause the panel to move in response. For example, the panel may initially be located in the second position, and the sensor may measure an increase in windspeed. If the windspeed exceeds a predetermined threshold, the controller can cause the panel to move into the first position, thereby providing protection.
- Additionally or alternatively, the UAV facility may further comprise a communications system, configured to receive a data signal from a remote computing system and cause the panel to move between at least the first position and the second position, based on the data signal. Accordingly, the movement between the first and second positions can be automated based on a received signal. Thus, the UAV facility need not comprise its own sensor. In addition, it can be beneficial to allow the UAV facility to be remotely operated. For example, a remote computing system can control a plurality of UAV facilities within a geographical location.
- The wind-porous element may be a panel, for example. Porosity is a measure of how porous a surface is and is defined as the total area of the voids/apertures on the surface divided by the total area of the surface. Thus, a solid surface has a porosity of 0. In some examples, the erectable wind-porous structure comprises a wind-porous element which has a porosity between 0.1-0.7 (or 10%-70%). Preferably, the wind porous element has a porosity of between 0.1-0.3. A porosity value within this range provides an area large enough to provide protection to the UAV(s) on the landing area, while reducing windspeed and/or turbulence to an acceptable level.
- In arrangements which comprise a panel, the first end is arranged further above the landing area than the second end while in the first position. The panel may be wind-porous and the porosity of the panel generally increases from the second end towards the first end. Accordingly, the panel has a porosity gradient along the panel, where the panel is more porous at the upper end. The presence of a gradient means that abrupt discontinuities can be avoided, so that the UAV can more stably transition between the wind-protected region and the unprotected region.
- In a particular example the panel comprises two or more regions, each region having a different porosity. Thus, the porosity gradient can be provided by having two or more regions spaced in height. The regions may have the same height, or may be of different height. Preferably the panel comprises a first region having a porosity of about 0.1, a second region having a porosity of about 0.3 and a third region having a porosity of about 0.5. It has been found that such a porosity gradient reduces wind speed from about 30 mph to about 10 mph in the vicinity of the landing area.
- In some arrangements, the structure (such as the panel) delimits a plurality of adjustable apertures and a porosity of the structure is adjustable by varying the size of the apertures. Accordingly, the porosity can be varied. The porosity may be varied depending upon the wind conditions, size of the landing area, and/or mass of the UAVs for example. Varying the porosity allows the airflow characteristics to be manipulated and controlled. Some or all of the apertures may be adjustable. The apertures may be of equal size, or they may be of a different size. For example, larger apertures may be towards the top, and therefore fully opening all of the apertures provides a porosity gradient. The UAV facility may comprise one or more motors and/or actuators, to facilitate adjustment of the apertures.
- In a specific example, the UAV facility comprises one or more sensors configured to monitor weather conditions and a controller is configured to receive sensor data from the one or more sensors and adjust the size of the apertures, based on the sensor data. Thus, the aperture size can be varied automatically in response to the sensor data. For example, the apertures may be made smaller, thereby reducing the porosity, if the wind speed is detected to increase.
- In another example, the UAV facility comprises a communications system, configured to receive a data signal from a remote computing system and adjust the size of the apertures, based on the data signal. Thus, an external computing system may cause the aperture size to be adjusted. The instruction may be based on weather conditions, for example.
- In one arrangement, the UAV facility comprises a drive mechanism, arranged to adjust a distance between the second end of the panel and the landing area when the panel is arranged in the first position. For example, the lower end of the panel can me moved further away from, or closer to the landing surface. Accordingly, the distance between the perimeter of the landing area and the panel can be varied. This is advantageous because the area of lowest windspeed is often not located directly behind the panel, and instead may be offset by a certain distance behind the panel. The optimum position behind the panel can be dependent upon windspeed, and so in some examples, the distance can be adjusted based on windspeed.
- In some examples the structure comprises a plurality of panels for reducing wind speed across the landing area. Each of the plurality of panels are connected to the housing via a connector assembly and are moveable between the first position and the second position. Each panel can be moved between the first and second configuration. A plurality of panels can provide improved protection from different directions. The plurality of panels may be arranged along different sides of the landing area, for example.
- Preferably, the plurality of panels are arranged to substantially surround the landing area, and in one arrangement may fully-surround the landing area. Each panel may be arranged between two adjacent panels. Each panel may engage an adjacent panel to lock the panel in place.
- In a specific example, the landing area defines a shape having four sides (such as a rectangle or square), and the plurality of panels comprise four panels for reducing wind speed across the landing area, the four panels being arranged substantially along the four sides.
- In an example of the first and second embodiments, the structure may be arranged such that an obtuse angle is subtended between the structure and the landing area. For example, the wind-reducing netting or erectable wind-porous structure may be arranged in substantially two-dimensional plane which is angled with respect to the landing area. Thus, the structure and the landing area define two planes which are not arranged perpendicular to each other. Instead, the structure may be said to lean outwards. This arrangement increases the airspace above the landing area within which the UAV can fly. A larger airspace provides less of an obstruction for the UAV during landing and takeoff. In a particular example, the obtuse angle is substantially equal to 45 degrees because such an angle has also been found to reduce the abrupt onset of turbulence.
- In some examples of the first and second embodiments, the housing delimits an aperture through which to receive at least part of the UAV. For example, a hole or opening may be provided in an outer surface of the housing, such as the landing surface, which provides the UAV with access to inner parts of the housing and in particular contents therein. In a particular example, the UAV may be positioned above or nearby the aperture and a retractable tether or arm passes through the aperture. A package, or battery housed within the housing may be coupled to the tether or arm before being passed through the aperture. The size of the aperture is such that the UAV cannot fully pass through it.
- In some examples of the first and second embodiments, the UAV facility may further comprise a moveable platform, wherein the moveable platform defines at least part of the landing area and provides means to move the UAV inside the housing. The moveable platform may form the whole landing area/surface, or the landing area may comprise a fixed portion and a moveable portion, where the moveable portion is provided by the moveable platform. In some examples, the moveable platform itself delimits another aperture. For example, the platform may move through a large aperture formed in the housing, and a package may pass through a smaller aperture formed in the platform.
- The UAV facility may further comprise a UAV positioning mechanism arranged on the housing, the UAV positioning mechanism being configured to position the UAV on the landing area. The positioning mechanism provides means to further accurately position the UAV on the landing area. The positioning mechanism may move the UAV from an initial landing position to a desired position. The initial landing position may vary due to a variety of factors, including the effects of wind. Example positioning mechanisms are described in U.S. provisional application No. 62/558,192, entitled “Drone Delivery System” and in PCT application number PCT/US18/50926, entitled “Positioning Mechanism”, both of which are hereby incorporated by reference.
- Further features and advantages of the disclosure will become apparent from the following description of preferred embodiments of the disclosure, given by way of example only, which is made with reference to the accompanying drawings.
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FIG. 1 is a perspective view of an unmanned aerial vehicle facility in accordance with an example; -
FIG. 2A is a side view of a UAV located on a moveable platform in accordance with an example; -
FIG. 2B is a side view of a UAV having been moved inside a housing by lowering the moveable platform ofFIG. 2A ; -
FIGS. 3A-B , 4A-B, 5A-B, 6A-C, 7A-D, 8A-D, and 9A-B are side views of example UAV facilities having an erectable structure; -
FIG. 10 is a side view of a porous structure in accordance with an example; -
FIG. 11A is a side view of a porous structure having a porosity gradient in accordance with a first example; -
FIG. 11B is a side view of a porous structure having a porosity gradient in accordance with a second example; -
FIG. 12 is a side view of a structure having adjustable apertures in accordance with an example; and -
FIGS. 13A and 13B are side views of a UAV facility having a structure which is moveable with respect to the landing area; - Disclosed are example UAV facilities. A UAV facility is a unit which can house a UAV, store packages, provide a landing surface, or act as a UAV battery charging/replacement unit.
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FIG. 1 depicts anexample UAV facility 100. Thefacility 100 comprises atransportable housing 102 for holding aUAV 104. Thehousing 102 defines a landing area/surface 106 upon which theUAV 104 can land. Thehousing 102 comprises a number of side surfaces 108. In this example there are four side surfaces, a base, and an upper surface, where the upper surface defines the landing area. In the example ofFIG. 1 , the landing area is rectangular, and therefore has four sides, or edges. Other shaped landing areas are envisaged. In this example, thehousing 102 is mounted or attached to a number ofwheels 116 to provide the transportability. As mentioned previously, the facility may be towed by a vehicle, or it may be a vehicle itself. - The
housing 102 defines a volume within which packages, UAVs, batteries, and/or other objects can be stored. Packages may be received within the housing via one ormore ingress ports 110. Once loaded into thehousing 102, the packages may be moved to a particular location within thehousing 102 before being loaded onto aUAV 104. - The housing may delimit an
aperture 112 through which at least part of theUAV 104 may pass. For example, theUAV 104 may enter thehousing 102 via theaperture 112. Alternatively, the UAV may lower a coupling mechanism through theaperture 112. Apackage 206, shown initially on aloading surface 208, may be attachable to the coupling mechanism. - In one example, a moveable platform (shown in
FIGS. 2A and 2B ) forms part of thelanding surface 106, and is therefore positionable within theaperture 112.FIG. 2A depicts a side view of theUAV facility 100. TheUAV 104 has landed on thesurface 106 and is positioned upon amoveable platform 202. In some examples, the UAV facility comprises a UAV positioning mechanism (not shown) arranged on top of thehousing 102. A UAV positioning mechanism is useful to position the UAV on thelanding area 106. For example, the positioning mechanism may move the UAV from an initial landing position to a desired position, such as on top of themoveable platform 202. - The
platform 202 may be lowered into thehousing 102 by moving one ormore bars 204. Thebars 204 may be telescopic, for example, and can retract in length to move theplatform 202 into thehousing 102. A drive system (not shown) may control the lowering and raising of themoveable platform 202. For example, a controller (not shown) may instruct or cause thebars 204 to operate once theUAV 104 is positioned on themoveable platform 202. In this arrangement, thehousing aperture 112 is in a closed position. - In some examples, the
moveable platform 202 also delimits an aperture. InFIG. 2A , the platform aperture is closed by one ormore members 210, so is not visible. The one ormore members 210 are therefore in a closed configuration, in which they form part of thelanding surface 106 inFIG. 2A . The drive system may be arranged to move the one ormore members 210 into an open configuration. -
FIG. 2B shows themoveable platform 202 in a lowered position. Thebars 204 have retracted in length such that theplatform 202 andUAV 104 are located within thehousing 102. The one ormore members 210 have also been moved into an open configuration by the drive system. For example, the one ormore members 210 have been withdrawn into a compartment within themoveable platform 202, so that theplatform aperture 212 is open. In another example, one ormore members 210 may act like a trapdoor and hinged with respect to themoveable platform 202. A coupling mechanism, attached to one end of a tether, has been lowered from a compartment within theUAV 104 to engage thepackage 206.FIG. 2B therefore shows thepackage 206 as it is being lifted through theplatform aperture 212 and into the UAV compartment. Once received within the UAV compartment, theplatform 202 may be raised again to allow theUAV 104 to take flight and deliver thepackage 206 to a destination. - Returning again to
FIG. 1 , theUAV facility 100 comprises astructure 114 for reducing wind speed across thelanding area 106. Thestructure 114 may be a single part, or may be comprised of a plurality of parts. Thestructure 114 acts to shelter theUAV 104 from wind during landing and takeoff, and when theUAV 104 is resting upon thelanding surface 106. - In a first embodiment, the
structure 114 comprises wind-reducing netting for reducing wind speed across the landing area. For example, the netting may be suspended between, or wrapped around one or more rigid elements which support the netting when erected. In certain examples, the structure is erectable. - In a second embodiment, the
structure 114 is an erectable wind-porous structure for reducing wind speed across the landing area. Thus, thestructure 114 can be arranged in two or more different positions/configurations. -
FIGS. 3A-9 depict a variety of example structures which are erectable and can therefore be adjusted. -
FIG. 3A depicts a front view of anexample UAV facility 100 and corresponds to a view as seen in the direction of arrow “A” shown inFIG. 1 . Theexample facility 100 comprises a structure comprising one ormore panels 314. Thepanels 314 may be wind-porous. In another example, the structure may comprise one or more nets suspended between one or more rigid elements. InFIG. 3A , only twoside panels 314 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - The
panels 314 are attached to thehousing 102 viarespective connector assemblies 320. In this example, theconnector assemblies 320 comprise one or more hinges to allow thepanels 314 to rotate with respect to thelanding area 106. - In
FIG. 3A , thepanels 314 are arranged such that anobtuse angle 316 is subtended between the panels and thelanding surface 106. In other examples, however, thepanels 314 may be arranged substantially vertically, in the positions indicated by dashed lines. In a further example, thepanels 314 may be arranged such that an acute angle is subtended between the panels and thelanding surface 106. - The
panels 314 are arranged in a first, erected, position inFIG. 3A . In this position, the panels extend away from thelanding area 106 and a first,upper end 314 a of the panel is arranged at afirst height 318 above the ground. In this position, thepanels 314 act to reduce wind speed across thelanding area 106. Preferably, thepanels 314 extend above the landing area by a distance such that thefirst end 314 a extends above theUAV 104. The panels also comprise a second, lower, end 314 b, which is on an opposite side from thefirst end 314 a. In this example, the second ends 314 b of thepanels 314 are connected to thehinges 320. - The hinges 320 facilitate rotational movement of the
panels 314 with respect to thelanding area 106. For example, thepanels 314 can rotate/pivot from the first position ofFIG. 3A to a second, folded, position shown inFIG. 3B . For example, thepanels 314 can rotate towards thelanding area 106.FIG. 3B depicts theUAV facility 100 ofFIG. 3A after thepanels 314 have been moved into the second position. In this position, thepanels 314 are arranged on top of thelanding area 106. For example, both panels may rest on thelanding area 106, or one panel may rest on top of another panel. The front and rear panels (not shown) may also be rotated towards thelanding area 106 in a similar fashion. In this second position thefirst end 314 a of eachpanel 314 is arranged at asecond height 322, which is lower than thefirst height 318. Thepanels 314 may be arranged in this second position when theUAV facility 100 is not being used, such as during transport of thefacility 100. This second position provides a more aerodynamic profile during transportation. -
FIG. 4A depicts a front view of anotherexample UAV facility 100. Unlike the example ofFIG. 3A , the UAV facility of this example is arranged such that the panels rotate away from thelanding area 106 into a second position in which the panels are adjacent to the side surfaces 108 of thehousing 102, as shown inFIG. 4B . - The
example facility 100 comprises a structure comprising one ormore panels 414. In another example, the structure may comprise one or more nets suspended between one or more rigid elements. As withFIGS. 3A and 3B , only twoside panels 414 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - The
panels 414 are arranged such that an obtuse angle is subtended between the panels and thelanding surface 106. In other examples, however, thepanels 414 may be arranged substantially vertically or be arranged such that an acute angle is subtended between the panels and thelanding surface 106. - As with
FIGS. 3A and 3B , thepanels 414 are attached to thehousing 102 viarespective connector assemblies 420. such as one or more hinges to allow thepanels 414 to rotate with respect to thelanding area 106. - The
panels 414 are arranged in a first, erected, position inFIG. 4A . In this position, the panels extend away from thelanding area 106 and a first,upper end 414 a of the panel is arranged at afirst height 418 above the ground. In this position, thepanels 414 act to reduce wind speed across thelanding area 106. The panels also comprise a second, lower, end 414 b, which is on an opposite side from thefirst end 414 a. - The hinges 420 facilitate rotational movement of the
panels 414 with respect to thelanding area 106. For example, thepanels 414 can rotate/pivot from the first position ofFIG. 4A to a second, folded, position shown inFIG. 4B . For example, thepanels 414 can rotate away from thelanding area 106.FIG. 4B depicts theUAV facility 100 ofFIG. 4A after thepanels 414 have been moved into the second position. In this position, thepanels 414 are arranged adjacent to, and substantially parallel with, at least a portion of aside surface 108 of thehousing 102. The front and rear panels (not shown) may also be rotated away from thelanding area 106 in a similar fashion. In this second position thefirst end 414 a of eachpanel 414 is arranged at asecond height 422, which is lower than thefirst height 418. Thepanels 414 may be arranged in this second position when theUAV facility 100 is not being used, such as during transport of thefacility 100. This second position provides a more aerodynamic profile during transportation. -
FIG. 5A depicts a front view of anotherexample UAV facility 100. Unlike the example ofFIGS. 3B and 4B , the UAV facility of this example is arranged such that one or more panels rotate into a second position in which the panels are adjacent to the side surfaces 108 of thehousing 102, and one or more other panels rotate into a second position in which the panels are on top of thelanding area 106. This configuration is particularly advantageous in situations where the shape or size of the panels do not permit all of the panels to be folded on top of thelanding area 106 or down the sides of thehousing 102. - The
example facility 100 comprises a structure comprising two ormore panels 514. As for the examples described with reference toFIGS. 3A-4B , the structure may comprise two or more nets suspended between rigid elements. InFIG. 5A , a front panel is depicted. The panel comprises afirst end 514 a that is longer in length than asecond end 514 b. At least one side panel is also present, but is obscured from view. A rear panel may also be present in some examples. Thepanel 514 is shaped like an isosceles trapezium such that the base angles 516 are equal. This means that the side panels are arranged so that an obtuse angle of equal measure is subtended between the side panel and the landing area. In a particular example, the base angles 516 are substantially equal to 45 degrees because such an angle has been found to reduce the abrupt onset of turbulence. - The
panels 514 are attached to thehousing 102 viarespective connector assemblies 520. In this example, theconnector assemblies 520 comprise one or more hinges to allow thepanels 514 to rotate with respect to thelanding area 106. - The
panels 514 are arranged in a first, erected, position inFIG. 5A . In this position, the panels extend away from thelanding area 106 and first, upper ends 514 a of the panels are arranged at afirst height 518 above the ground. In this position, thepanels 514 act to reduce wind speed across thelanding area 106. - As with the examples described with reference to
FIGS. 3A-4B , thehinges 520 facilitate rotational movement of thepanels 514 with respect to thelanding area 106. For example, the front and/orrear panels 514 can rotate/pivot from the first position ofFIG. 5A towards the landing area into a second, folded, position shown inFIG. 5B . Theside panels 514 can rotate/pivot from the first position ofFIG. 5A away from the landing area into a second, folded, position shown inFIG. 5B . This configuration provides a particularly aerodynamic profile in situations where theUAV facility 100 is transported in a direction out of the page. In other examples however, the front/rear panels 514 can rotate away from thelanding area 106 and theside panels 514 can rotate towards, and on top of, thelanding area 106. -
FIG. 5B depicts theUAV facility 100 ofFIG. 5A after thepanels 514 have been moved into the second position. In this position, theside panels 514 are arranged adjacent to, and substantially parallel with, at least a portion of aside surface 108 of thehousing 102. The front and rear panels are arranged substantially on top of thelanding area 106. In this second position thefirst end 514 a of theside panels 514 are arranged at asecond height 522, which is lower than thefirst height 518. Thefirst end 514 a of the front andrear panels 514 are arranged at athird height 524, which is lower than thefirst height 518 but higher than thesecond height 522. -
FIG. 6A depicts a front view of anotherexample UAV facility 100. Unlike the example ofFIGS. 3A-5B , the UAV facility of this example is arranged such that one or more panels may be stored within an enclosure located directly beneath the landing area. This configuration is particularly advantageous to reduce wind resistance during transportation of the UAV facility. - As with the examples described with reference to
FIGS. 3A-5B , theexample facility 100 comprises a structure comprising one ormore panels 614. In another example, the structure may comprise one or more nets suspended between rigid elements. InFIG. 6A , only twoside panels 614 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - The
panels 614 are attached to thehousing 102 viarespective connector assemblies 620. In this example, theconnector assemblies 620 comprise one or more hinges to allow thepanels 614 to rotate with respect to thelanding area 106. Unlike the examples depicted inFIGS. 3A-5B , theconnector assemblies 620 of this example further comprise a mechanism to allow thepanels 614 to translate such that they may be moved at least partially into theenclosure 626. Other types ofconnector assemblies 620 may be used which allow thepanels 614 to be moved into theenclosure 626. - The
enclosure 626, which is part of the housing, is formed directly beneath thelanding area 106. Theenclosure 626 may remain open once thepanels 614 are stowed within the enclosure, or thehousing 102 may comprise one or more doors to close theenclosure 626. - The
panels 614 are arranged in a first, erected, position inFIG. 6A . In this position, the panels extend away from thelanding area 106 and first, upper ends 614 a of the panels are arranged at afirst height 618 above the ground. In this position, thepanels 614 act to reduce wind speed across thelanding area 106. In this example, second ends 614 b of thepanels 614 are connected to theconnector assembly 620. - The
connector assemblies 620 facilitate rotational movement of thepanels 614 with respect to thelanding area 106. For example, thepanels 614 can rotate/pivot from the first position ofFIG. 6A away from the landing area into an intermediate position shown inFIG. 6B . -
FIG. 6B depicts theUAV facility 100 ofFIG. 6A after thepanels 614 have been moved into the intermediate position. In this position, thepanels 614 are arranged substantially parallel with thelanding area 106 and the first ends 614 a of theside panels 614 are arranged at asecond height 622, which is lower than thefirst height 618. - The
connector assemblies 620 also facilitate translational/linear movement of thepanels 614 with respect to thelanding area 106. For example, thepanels 614 can slide from the intermediate position ofFIG. 6B and into theenclosure 626 located underneath thelanding area 106 into the position shown inFIG. 6C . -
FIG. 6C depicts theUAV facility 100 ofFIG. 6A after thepanels 614 have been moved into a second position. In this position, thepanels 614 are arranged underneath, and are substantially parallel with, thelanding area 106. In this position thefirst end 614 a of theside panels 614 are arranged at thesecond height 622. In some examples, thepanels 614 may be fully housed within theenclosure 626. In other examples, at least a portion of thepanel 614 may extend out of theenclosure 626. -
FIG. 7A depicts a front view of anotherexample UAV facility 100. Unlike the previous examples, the UAV facility of this example comprises panels which have an upper panel portion and a lower panel portion which are pivotable with respect to each other. The upper panel portion can be rotated relative to the lower panel portion to reduce the overall height of the structure. The lower panel portion can remain in its original position such that a portion of the panel still extends away from the landing area. - The
example facility 100 comprises a structure comprising one ormore panels 714, each having anupper panel portion 728 and alower panel portion 730. InFIG. 7A , only twoside panels 714 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - In
FIG. 7A , thepanels 714 are arranged such that an obtuse angle is subtended between the panels and thelanding surface 106. In other examples, however, thepanels 714 may be arranged substantially vertically. - The
panels 714 are arranged in a first, erected, position inFIG. 7A . In this position, the panels extend away from thelanding area 106 and a first,upper end 714 a of theupper panel portion 728 is arranged at afirst height 718 above the ground. Thelower panel portion 730 and theupper panel portion 728 are said to be substantially coplanar because an angle subtended between thepanel portions lower panel portion 730 comprises a second, lower, end 714 b, which is on an opposite side of thepanel 714 from thefirst end 714 a. - The
panels 714 are attached to thehousing 102 via respective connector assemblies. In this example, the connector assemblies 720 comprise twoconnectors first connector 720 a connects thelower panel portion 730 to thehousing 102. Thesecond connector 720 b, such as a hinge, connects thelower panel portion 730 to theupper panel portion 728 and allows the twoportions first connector 720 a is also a hinge, so that thewhole panel 714 may rotate with respect to the landing surface. - As mentioned, the
second connector 720 b facilitates rotational movement of theupper panel portion 728 with respect to thelanding area 106 and thelower panel portion 730. For example, theupper panel portion 728 can rotate/pivot from the first position ofFIG. 7A towards thelower panel portion 730 to a second, folded, position shown inFIG. 7B . In this position, an acute angle is subtended between thepanel portions first end 714 a of eachpanel 714 is arranged at asecond height 722, which is lower than thefirst height 718. Thepanels 714 may be arranged in this second position when theUAV facility 100 is not being used, such as during transport of thefacility 100, or at times when the wind speed is relatively slow. This second position provides less protection, but increases the airspace volume above the landing area. -
FIG. 7C corresponds to a view as seen in the direction of arrow “B” shown inFIG. 7A . Theupper panel portion 728 in this example has a length dimension that is greater than that of thelower panel portion 730. In other examples the upper and lower panel portions have substantially the same length.FIG. 7D shows theupper panel portion 728 after being rotated into the second position. -
FIG. 8A depicts a front view of anotherexample UAV facility 100. Unlike the previous examples, the UAV facility of this example is arranged such that the connector assemblies facilitate a sliding, linear movement of the panels. This allows the overall height of the structure to be reduced. - As with the examples described with reference to
FIGS. 3A-7D , theexample facility 100 comprises a structure comprising one ormore panels 814. In another example, the structure may comprise one or more nets suspended between one or more rigid elements. InFIG. 8A , only twoside panels 814 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - In
FIG. 8A , thepanels 814 are arranged substantially vertically in a first, erected, position. In this position, thepanels 814 extend away from thelanding area 106 and a first,upper end 814 a of the panel is arranged at afirst height 818 above the ground. In this position, thepanels 814 act to reduce wind speed across thelanding area 106. The panels also comprise a second, lower, end 814 b, which is on an opposite side from thefirst end 814 a. - The
panels 814 are attached to thehousing 102 viarespective connector assemblies 820. In this example, theconnector assemblies 820 facilitate linear movement of thepanels 814. For example, a connector assembly may comprise one or more guide rails, and thepanel 814 is guided along the one or more guide rails. - As mentioned, the
connector assemblies 820 facilitate a sliding movement of thepanels 814. For example, thepanels 814 can slide linearly from the first position ofFIG. 8A to a second, reduced height position shown inFIG. 8B . In this second position, at least a portion of thepanels 814 is arranged adjacent to, and substantially parallel with, at least a portion of aside surface 108 of thehousing 102. A portion of thepanels 814 may also extend away from the landing area to provide an element of wind protection. In other examples however, thefirst end 814 a may be level with, or below thelanding area 106. In any case, in this second position thefirst end 814 a of eachpanel 814 is arranged at asecond height 822, which is lower than thefirst height 818. -
FIG. 8C corresponds to a view as seen in the direction of arrow “C” shown inFIG. 8A .FIG. 8D shows aside panel 814 after being moved into the second, reduced height, position. -
FIG. 9A depicts a front view of anotherexample UAV facility 100. In a similar way to the examples ofFIGS. 7A-8D , the height of the structure can be reduced. However, in contrast to those examples, the structure of this example is telescopic in nature, so that a portion of the structure can be translated linearly to a lower height. - The
example facility 100 comprises a structure comprising one ormore panels 914, each having anupper panel portion 928 and alower panel portion 930. InFIG. 9A , only twoside panels 914 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - The
panels 914 are arranged in a first, erected, position inFIG. 9A . In this position, the panels extend away from thelanding area 106 and theupper panel portion 928 is arranged further above thelanding area 106 than thelower panel portion 930. A first,upper end 914 a of theupper panel portion 928 is arranged at afirst height 918 above the ground. In this example, thelower panel portion 930 is wider than theupper panel portion 928 so that theupper panel portion 928 can be received within it. In other arrangements, thelower panel portion 930 may be narrower than theupper panel portion 928 so that thelower panel portion 928 is received within theupper panel portion 928. Thelower panel portion 930 comprises a second, lower, end 914 b, which is on an opposite side of thepanel 914 to thefirst end 914 a. - The
panels 914 are attached to thehousing 102 viarespective connector assemblies 920. Theconnector assemblies 920 facilitate a sliding movement between a first, maximum height position, and a second, reduced height position. For example, theupper panel portion 928 can slide linearly from the first position ofFIG. 9A to a second, reduced height position shown inFIG. 9B . In this second position, at least a portion of thepanels 914 extend away from the landing area to provide an element of wind protection and the first ends 914 a of eachpanel 914 are arranged at asecond height 922, which is lower than thefirst height 918. Thepanels 914 may be arranged in this second position when theUAV facility 100 is not being used, such as during transport of thefacility 100, or at times when the wind speed is relatively slow. This second position provides less protection, but provides less obstruction during landing and takeoff of the UAV. - In the examples described in relation to the
FIGS. 3A-9B , the structures can be manually moved between the first and second positions. However, in other examples, the movement of the structures can be at least partially automated. For example, the UAV facility may comprise a controller, such as a processor, and a drive mechanism which causes the movement of the erectable structure between the two positions. The controller may instruct the drive mechanism to cause the structure to be moved between the first and second positions. The drive mechanism may comprise one or more motors, or actuators, for example, which operate to move the structure. - Returning to
FIG. 1 , theexample UAV facility 100 further comprises one ormore sensors 150 configured to monitor weather conditions. Based on sensor data received from thesensors 150, a controller can cause the structure to move between the first position and the second position. For example, one or more panels may initially be in the second, folded, configuration. Thesensors 150 may detect an increase in wind speed, and the controller may determine that the panels need to be erected. Accordingly, the controller instructs the drive mechanism to erect the panels in order to provide protection from the wind. - Alternatively, or additionally, the
example UAV facility 100 also comprises a communications system 152 (shown depicted inFIG. 1 ). Thecommunications system 152 can receive a data signal from a remote computing system and cause the structure to move between the first position and the second position, based on the data signal. For example, a human operator located at the remote computing system may cause a signal to be sent to theUAV facility 100 to cause the structure to move. In another example, the signal may be sent without instruction from a human. For example, weather data received or measured at the remote computing system may trigger the signal to be sent. - As mentioned, the structure described in
FIGS. 1-9B comprises a wind porous element to allow wind to permeate through the structure. For example, the panels described inFIGS. 3A-9B may be wind porous.FIG. 10 depicts anexample panel 1014 that is wind porous. The panel comprises asolid portion 1002, and a plurality of apertures/voids 1004. The apertures may be provided by drilling or cutting holes in an initiallysolid panel 1014 until the required porosity is achieved. Alternatively, thepanel 1014 may be initially formed or molded with apertures present. The apertures inFIG. 10 are distributed evenly across thepanel 1014. -
FIG. 11A depicts anotherpanel 1114 that is wind porous. Unlike the panel ofFIG. 10 , the apertures are not evenly distributed across the surface of the panel. Instead, the porosity of thepanel 1114 generally increases from the second, lower,end 1114 b of the panel towards the first,upper end 1114 a. Accordingly, thepanel 1114 has a porosity gradient along thepanel 1114, where thepanel 1114 is more porous at theupper end 1114 a. In one example, the porosity may be close to 0 thesecond end 1114 b, and be closer towards 1 (such as 0.7) at thefirst end 1114 a. -
FIG. 11B depicts anotherpanel 1116 that is wind porous and has a porosity gradient that increases from the second,lower end 1116 b of the panel towards the first,upper end 1116 a. In this example the panel comprises threedistinct regions FIG. 11B the apertures are omitted for illustrative purposes). However, the porosity differs between each of the threedistinct regions lower region 1118 c has a porosity of about 0.1, themiddle region 1118 b has a porosity of about 0.3 and theupper region 1118 c has a porosity of about 0.5. For example, thelower region 1118 c has a porosity of 0.07, themiddle region 1118 b has a porosity of 0.29 and theupper region 1118 c has a porosity of 0.46. It has been found that such porosity values are particularly effective at reducing wind speed from about 30 mph to less than about 10 mph. At this reduced windspeed level certain UAVs can fly with little disturbance. - Although the example of
FIG. 11B comprises three distinct regions of differing porosity, there may be two or more distinct regions having different porosities. -
FIG. 12 depicts anotherpanel 1214 that can be wind porous. Unlike the panels ofFIGS. 10, 11A and 11B , thepanel 1214 comprises a plurality of apertures that are closeable. Thepanel 1214 comprises asolid portion 1202, and a plurality of adjustable size apertures/voids 1204 a-c. The apertures may be provided by valves, for example, which can open and close.Aperture 1204 a is shown to be fully closed,aperture 1204 b is shown to be fully open, andaperture 1204 c is shown to be partially open. Movable members may move to close respective apertures, for example. In some examples, the apertures can either be open or closed. In other examples, the aperture size can be selected by partially opening the aperture. By opening or closing apertures and/or adjusting the aperture size, the porosity of the panel can be set to a desired level. Different wind conditions may favor different porosities, for example. Similarly, a porosity gradient can be provided by opening more apertures at one end of the panel. - In one example, the moveable members which close the apertures are themselves porous. Accordingly, even when all of the apertures are closed, the
panel 1214 may still have an inherent porosity. In one variant, the porosity of the respective moveable members varies as a function of location between the first and second ends 1214 a, 1214 b of thepanel 1214. Accordingly, even when all of the apertures are closed, thepanel 1214 may have an inherent porosity gradient. - In a specific example, the aperture size can be varied based the weather conditions measured by one or more sensors 150 (shown in
FIG. 1 ). For example, a controller can cause the aperture size to be adjusted based on the sensor data. Similarly, the aperture size can be varied based on a data signal received from a remote computing system. For example, the communications system 152 (shown inFIG. 1 ) may receive a data signal instructing the aperture size to be adjusted. Alternatively, the data signal may comprise weather data, and thecommunications system 152 determines whether to adjust the aperture size based on the received weather data. -
FIG. 13A depicts a front view of anotherexample UAV facility 100. The features of this example may be incorporated into any of those examples described inFIGS. 3A-9B . In this example, the structure can be moved to adjust the distance between the structure and the landing area. For example, the lower end of the structure can me moved further away from, or closer to the landing area. - The
example facility 100 comprises a structure comprising one ormore panels 1314. In another example, the structure may comprise one or more nets suspended between rigid elements. InFIG. 13A , only twoside panels 1314 are depicted. Similar front and rear panels may also be present, but are omitted for illustrative purposes. - The
panels 1314 are attached to thehousing 102 viarespective connector assemblies 1320. Theconnector assemblies 1320 comprise a mechanism to allow thepanels 1314 to translate so that they may be moved away from thelanding area 106. For example, the connector assemblies may comprise one ormore extension members 1326 which move along a guide rail. - The
panels 1314 are arranged in a first, erected, position inFIG. 13A . In this position, thesecond end 1314 b of the panel is arranged directly adjacent to anedge 106 a of the landing area. A drive mechanism (not shown) may be configured to adjust a distance between thesecond end 1314 b of thepanel 1314 and thelanding area 106 when the panel is arranged in this first position. -
FIG. 13B depicts theUAV facility 100 ofFIG. 13A after the drive mechanism has caused thepanels 1314 to be moved away from thelanding area 106. In this position, the distance between thesecond end 1314 b of thepanel 1314 and theedge 106 a of the landing area has increased when compared to the position ofFIG. 13A . Moving thepanels 1314 further and away from thelanding area 106 can control and adjust the turbulence at different positions across thelanding area 106. - In some examples, the drive mechanism adjusts the distance between the
second end 1314 b of the panel and thelanding area 106 based on sensor data received from one or more sensors 150 (shown inFIG. 1 ). In other examples, the drive mechanism adjusts the distance between thesecond end 1314 b of the panel and thelanding area 106 based on a data signal received from a remote computing system via communications system 152 (also shown inFIG. 1 ). - In the above embodiments, the UAV facility is considered to be transportable. For example, the housing is transportable. Other embodiments are envisaged where the UAV facility is stationary, and not transportable. For example, the UAV facility may not comprise wheels. In such embodiments, the structure for reducing wind speed across the landing area can include any or all of the above described features.
- The above embodiments are to be understood as illustrative examples. Further embodiments are envisaged. It is to be understood that any feature described in relation to any one embodiment may be used alone, or in combination with other features described, and may also be used in combination with one or more features of any other of the embodiments, or any combination of any other of the embodiments. Furthermore, equivalents and modifications not described above may also be employed without departing from the scope of the disclosure, which is defined in the accompanying claims.
Claims (36)
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US11713136B2 (en) | 2023-08-01 |
GB201812484D0 (en) | 2018-09-12 |
EP3681803B1 (en) | 2022-05-11 |
US20200207484A1 (en) | 2020-07-02 |
WO2019055702A1 (en) | 2019-03-21 |
EP3681803A1 (en) | 2020-07-22 |
GB201812471D0 (en) | 2018-09-12 |
WO2019055685A1 (en) | 2019-03-21 |
EP3681802A1 (en) | 2020-07-22 |
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