Videography of surfaces and improved positional control of unmanned aerial vehicles (UAV) are disclosed. Embodiments include a panning piloting scenario. The panning can include control parameters relative to a normal vector to a point P of a plane representing a surface, or relative to a direction of gravity and attributes of the surface. For example, the UAV can be programmed, or controlled, to pan about the point on the plane maintaining a certain distance therefrom while rotating about angles to the normal vector. Methods of estimating a surface include determining a plane including three non-collinear points of the surface. The plane determined can be relative to the direction of gravity, such as vertically parallel to gravity. A piloting routine can include piloting a UAV to various angles relative to the vector normal to the plane and distances to the location on the surface and/or point on the plane.

The present disclosure relates to the processing of a flexible polyvinyl chloride foam having predetermined characteristics formed from a polyvinyl chloride emulsion including polyvinyl chloride resin and a plasticizer by controlling one or more of the following: a concentration of stabilizer in the final foam, a heating rate during processing, a maximum temperature during fusion, and/or a total residence time during heating. Predetermined characteristics of interest for a flexible PVC foam may include, for example, low yellowness, uniform density, high compression modulus and/or a uniform cell morphology.

The object of the invention is a landing device, particularly for gymnasts when dismounting from said apparatus, particularly for the purpose of a stabilized dismount, characterized in that it comprises at least one first shock-absorbing volume (10) and one second shock-absorbing volume (12), the at least one of these two volumes being inflatable, both superimposed, as well as means (14) of connecting these at least two volumes in said superimposed position. The second shock-absorbing volume is inflatable.

The object of the invention is a landing device, particularly for gymnasts when dismounting from said apparatus, particularly for the purpose of a stabilized dismount, characterized in that it comprises at least one first shock-absorbing volume (10) and one second shock-absorbing volume (12), the at least one of these two volumes being inflatable, both superimposed, as well as means (14) of connecting these at least two volumes in said superimposed position. The second shock-absorbing volume is inflatable.

An air cushion for absorbing bounces, including at least one air chamber and one air inlet valve, characterized in that the air chamber has a multiplicity of protrusions in the direction of impact.

An air cushion for absorbing bounces, including at least one air chamber and one air inlet valve, characterized in that the air chamber has a multiplicity of protrusions in the direction of impact.

Videography of climbing surfaces and improved positional control of unmanned aerial vehicles (UAV) are disclosed. Currently, videography using UAVs (e.g. drones) avoid vertical structures. Rather, such drones are designed to navigate open aerial spaces. For example, UAVs often include sensors and piloting programming to avoid vertical walls. In climbing scenarios, however, a UAV provides improved videography of the vertical surface as described herein. As such, attributes of a vertical, semi-vertical, or non-uniform vertical surface can be recognized by a UAV. These surface attributes can be used to pilot and/or control a UAV. In certain embodiments, a transmitter is disposed on the climber, a normal climbing surface vector is determined, and UAV control settings are generated thereby to position the UAV. And, improved communication can be provided so as to relay real-time video capture of climbing activity to one or more persons on the ground.

Videography of climbing surfaces and improved positional control of unmanned aerial vehicles (UAV) are disclosed. Currently, videography using UAVs (e.g. drones) avoid vertical structures. Rather, such drones are designed to navigate open aerial spaces. For example, UAVs often include sensors and piloting programming to avoid vertical walls. In climbing scenarios, however, a UAV provides improved videography of the vertical surface as described herein. As such, attributes of a vertical, semi-vertical, or non-uniform vertical surface can be recognized by a UAV. These surface attributes can be used to pilot and/or control a UAV. In certain embodiments, a transmitter is disposed on the climber, a normal climbing surface vector is determined, and UAV control settings are generated thereby to position the UAV. And, improved communication can be provided so as to relay real-time video capture of climbing activity to one or more persons on the ground.

A safety airbag device for cushioning the free fall of a person or object from an elevated height. The airbag device includes an inflatable base bag capable of sustaining an air pressure and an inflatable structure coupled to the base bag, where the inflatable structure is in air communication with the base bag. A net is coupled to a top portion of the inflatable structure for decelerating and supporting the individual from free fall. A top cover is coupled to the base bag that substantially encloses the inflatable structure.

A safety airbag device for cushioning the free fall of a person or object from an elevated height. The airbag device includes an inflatable base bag capable of sustaining an air pressure and an inflatable structure coupled to the base bag, where the inflatable structure is in air communication with the base bag. A net is coupled to a top portion of the inflatable structure for decelerating and supporting the individual from free fall. A top cover is coupled to the base bag that substantially encloses the inflatable structure.