Abstract: Systems, methods, and computer program products for remaining useful life prediction. Operational data is collected from a test machine until a component fails, and a training dataset generated from the operational data. The training dataset is used to define and validate a prediction model. Operational data received from one or more field machines is provided to the prediction model. The prediction model then predicts the remaining useful life of the component of the field machine. To reduce the time-to-failure of the component in the test machine, the component may be repeatedly subjected to an accelerated wear cycle. The prediction model may be defined by extracting features from the training dataset. Like features may be extracted from the field dataset and provided to the prediction model as part of the prediction process. The operational data received from the field machines may be used to generate an updated prediction model.

Abstract: Systems, methods, and computer program products for monitoring a health condition of a tool. Operational data is collected from a machine while the machine is operating in a predetermined manner with the tool in each of at least two known health conditions. A plurality of features is extracted from the operational data, a training dataset is generated from the extracted features, and an analytic model is trained using the training dataset. The analytic model can then be used to determine the health condition of the tool by providing features extracted from operational data received from one or more field machines to the analytic model. The analytic model may then determine a health condition of the tool in the field machine based on like features extracted from the operational data from the one or more field machines.

Abstract: A refreshable Braille display device comprising a rotatable shaft a plurality of pairs of polygonal discs that selectively rotate about the shaft. Each disc comprises a plurality of outer edge surfaces, each of which comprising a plurality of cell elements fixedly disposed thereon wherein, the cell elements comprise pins, depressions, or a combination of both. The cell elements of two aligned outer surfaces of a pair of discs form a character cell representative of a Braille character. An outer surface is rotatable between one readable position and a plurality of non-readable positions wherein, a Braille character is accessible when the aligned outer surfaces are in the readable position. The device further comprises a converter module for converting text to output Braille and an order module for assigning a target outer surface to each disc in accordance with the output Braille.

Abstract: A tactile display apparatus renders information to a user, and comprises multiple braille cells attached adjacent to each other along a predefined path, a set of pins housed within the braille cells, and a set of pin holders inserted on the braille cells. The braille cells are moved periodically at a predefined speed via a driving assembly. The pins are selectively actuated by actuators, where the linear motion of the braille cells allow the user to contact the pins to read the information represented by the arrangement of the pins. The pin holders are moved along a defined path to contact the pins, and each pin holder comprises a rigid body and multiple elastic rings attached along the rigid body. The number of elastic rings is equal to the number of pins to allow the pin holder to selectively hold or release a pin.

Abstract: A tactile display apparatus renders information to a user, and comprises multiple braille cells attached adjacent to each other along a predefined path, a set of pins housed within the braille cells, and a set of pin holders inserted on the braille cells. The braille cells are moved periodically at a predefined speed via a driving assembly. The pins are selectively actuated by actuators, where the linear motion of the braille cells allow the user to contact the pins to read the information represented by the arrangement of the pins. The pin holders are moved along a defined path to contact the pins, and each pin holder comprises a rigid body and multiple elastic rings attached along the rigid body. The number of elastic rings is equal to the number of pins to allow the pin holder to selectively hold or release a pin.

Abstract: A refreshable Braille display device comprising a rotatable shaft a plurality of pairs of polygonal discs that selectively rotate about the shaft. Each disc comprises a plurality of outer edge surfaces, each of which comprising a plurality of cell elements fixedly disposed thereon wherein, the cell elements comprise pins, depressions, or a combination of both. The cell elements of two aligned outer surfaces of a pair of discs form a character cell representative of a Braille character. An outer surface is rotatable between one readable position and a plurality of non-readable positions wherein, a Braille character is accessible when the aligned outer surfaces are in the readable position. The device further comprises a converter module for converting text to output Braille and an order module for assigning a target outer surface to each disc in accordance with the output Braille.