Unmanned aerial vehicle positioning mechanism
Disclosed are unmanned aerial vehicle (UAV) positioning mechanisms for moving a UAV across a surface. The positioning mechanisms comprise a first guide assembly arranged opposite to a second guide assembly. A drive system is arranged to move the first guide assembly towards the second guide assembly and guide the UAV from a first position to a second position.
1. A UAV positioning mechanism for moving a UAV from a first position to a third position via a second position, comprising:
a first guide assembly comprising:
a first part having a first retaining member connected thereto wherein the first retaining member is pivotably mounted on the first part; and
a second part having a second retaining member connected thereto, wherein the second retaining member is pivotably mounted on the second part;
a second guide assembly spaced apart from the first guide assembly, wherein the first and second guide assemblies define therebetween an area for receiving a UAV; and
a drive system for moving the first guide assembly in a first direction and a second direction;
wherein the drive system is arranged to:
move the first guide assembly in the first direction towards the second guide assembly, such that the first part and the second part guide the UAV from a first position to a second position;
pivot the first and second retaining members between a first configuration and a second configuration, wherein:
in the first configuration, the first and second retaining members are arranged substantially parallel to the first and second parts, respectively; and
in the second configuration, the first and second retaining members define an angle between the first and second parts, respectively; and
move the first guide assembly in the second direction to move the UAV from the second position to a third position;
wherein the first and second retaining members are arranged to:
engage the UAV when the UAV is positioned at the second position such that the UAV moves with the first guide assembly in the second direction to the third position.
2. The UAV positioning mechanism of claim 1 , wherein:
the first guide assembly comprises a movable support;
the first part has a first end and a second end, and the first end of the first part is mounted on the movable support;
the second part has a first end and a second end, and the first end of the second part is mounted on the movable support; and
the drive system is arranged to:
move the second ends of the first and second parts towards the second guide assembly; and
move the moveable support towards the second guide assembly.
3. The UAV positioning mechanism of claim 2 , wherein the first ends of the first and second parts are pivotably mounted on the moveable support, and the drive system comprises:
a first actuator arranged to pivot the second end of the first part towards the second guide assembly; and
a second actuator arranged to pivot the second end of the second part towards the second guide assembly.
4. The UAV positioning mechanism of claim 2 , wherein the first guide assembly further comprises first and second portions connected to the first and second parts respectively via one or more hinges, wherein the first and second portions are arranged to hinge as the second ends of the first and second parts move towards the second guide assembly.
5. The UAV positioning mechanism of claim 4 , wherein the first guide assembly further comprises:
a first guide rail; and
a second guide rail arranged substantially parallel to, and spaced apart from, the first guide rail;
wherein:
an end of the first portion is slidably mounted on the first guide rail, such that the first portion moves along the first guide rail as the drive system moves the first guide assembly in the first and second directions; and
an end of the second portion is slidably mounted on the second guide rail, such that the second portion moves along the second guide rail as the drive system moves the first guide assembly in the first and second directions.
6. The UAV positioning mechanism of claim 1 , wherein the second guide assembly comprises:
a support;
a first part of the second guide assembly; and
a second part of the second guide assembly;
wherein:
the first part of the second guide assembly has a first end and a second end, and the first end of the first part of the second guide assembly is mounted on the support;
the second part of the second guide assembly has a first end and a second end, and the first end of the second part of the second guide assembly is mounted on the support;
the first and second parts of the second guide assembly are arranged to guide the UAV towards the second position; and
the drive system is arranged to move the second ends of the first and second parts of the second guide assembly towards the first guide assembly.
7. The UAV positioning mechanism of claim 6 , wherein the first ends of the first and second parts of the second guide assembly are pivotably mounted on the support, and the drive system comprises:
a third actuator arranged to pivot the second end of the first part of the second guide assembly towards the first guide assembly; and
a fourth actuator arranged to pivot the second end of the second part of the second guide assembly towards the first guide assembly.
8. The UAV positioning mechanism of claim 6 , wherein:
the second guide assembly is spaced apart from the first guide assembly along a first axis and the area extends along at least the first axis and a second axis, the second axis being perpendicular to the first axis;
the first guide assembly is spaced apart from the second guide assembly along a third axis, the third axis being perpendicular to both the first axis and the second axis; and when the drive system moves the first guide assembly in the first direction towards the second guide assembly, the first part of the first guide assembly is spaced apart from the first part of the second guide assembly along the third axis and the second part of the first guide assembly is spaced apart from the second part of the second guide assembly along the third axis when the UAV is located at the second position.
9. The UAV positioning mechanism of claim 6 , wherein the second guide assembly further comprises first and second portions connected to the first and second parts of the second guide assembly respectively via one or more hinges, wherein the first and second portions of the second guide assembly are arranged to hinge as the second ends of the first and second parts of the second guide assembly move towards the first guide assembly.
10. The UAV positioning mechanism of claim 1 , further comprising a moveable platform capable of forming at least part of a surface for receiving the UAV, wherein the first and second positions are positions on the surface, and the third position is a position on the platform; and
the drive system is arranged to lower the platform along an axis arranged perpendicular to a plane defined by the platform, thereby to lower the UAV with respect to the surface.
11. The UAV positioning mechanism of claim 10 , wherein the platform delimits an aperture through which to receive or deposit a payload.
12. The UAV positioning mechanism of claim 11 , wherein the aperture is closable.
13. The UAV positioning mechanism of claim 10 , wherein the drive system is arranged to:
move the first and second guide assemblies away from each other before lowering the platform.