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Recent advances in SPE® electrochemical systems have addressed risk areas identified early in the space station program and now support applications that can provide significant potential benefit to ISS in the areas of life support, propulsion and energy storage. Advanced high-pressure systems now under development for navy and aircraft applications can generate oxygen at pressures up to 2000 psi (13.8 MPa) with no moving parts on the oxygen side of the generating system. Zero gravity static phase separators have been developed and are being tested in component and system tests. Cyclic operation of complete systems has been demonstrated.

Off road navigation demands ground robots to traverse complex and often changing terrain. Classification and assessment of terrain can improve path planning strategies by reducing travel time and energy consumption. In this paper we introduce a terrain classification and assessment framework that relies on both exteroceptive and proprioceptive sensor modalities. The robot captures an image of the terrain it is about to traverse and records corresponding vibration data during traversal. These images are manually labelled and used to train a support vector machine (SVM) in an offline training phase. Images have been captured under different lighting conditions and across multiple locations to achieve diversity and robustness to the model. Acceleration data is used to calculate statistical features that capture the roughness of the terrain whereas angular velocities are used to calculate roll and pitch angles experienced by the robot.