Abstract: This disclosure relates to analysing rock falls. A video camera captures video data, a depth measurement system captures depth data, a seismic sensor captures seismic data, and a data store stores spatial characterising data of the rock fall site. A processor detects a rock fall source location based on the video data, depth data, seismic data; determines a three-dimensional free fall estimation based on the rock fall source location; estimates three-dimensional bounce kinematics based on the three-dimensional free fall estimation and the spatial characterising data of the rock fall site; estimates a runout based on the rock fall source location, free fall and bounce kinematics; and combines the rock fall source location, the three-dimensional free fall, the three dimensional bounce kinematics and the runout to determine a rock fall trajectory.

Abstract: A system for moving an object within an environment, wherein the system includes at least one modular wheel configured to move the object. The modular wheel includes a body configured to be attached to the object, a wheel, a drive configured to rotate the wheel and a controller configured to control the drive. One or more processing devices configured are provided to receive an image stream including a plurality of captured images from each of a plurality of imaging devices, the plurality of imaging devices being configured to capture images of the object within the environment, analyse the images to determine an object location within the environment, generate control instructions at least in part using the determined object location and provide the control instructions to the controller, the controller being responsive to the control instructions to control the drive and thereby move the object.