Abstract: A sensor apparatus includes a cylindrical sensor window defining an axis, and a plurality of at least three tubular segments fixed relative to the sensor window. Each tubular segment is elongated circumferentially relative to the axis. The tubular segments collectively form a ring substantially centered around the axis. Each tubular segment includes a plurality of nozzles. Each nozzle includes a first opening and a second opening. Each of the first openings has a direction of discharge in a radially inward and axial direction forming a first angle with the axis, and each of the second openings has a direction of discharge in a radially inward and axial direction forming a second angle with the axis. The second angle is different than the first angle.

Abstract: A sensor apparatus includes a housing attachable to a vehicle and including a panel, a sensor window, a liquid nozzle fixed relative to the housing, and a tunnel. The panel includes a port. The sensor window is positioned in the port. The liquid nozzle is aimed at the sensor window. The liquid nozzle is positioned in a first horizontal direction from the port along the panel. The tunnel extends along the panel and is positioned in a second horizontal direction from the port, the second horizontal direction being opposite the first horizontal direction. The tunnel terminates at an opening positioned to receive fluid outputted by the nozzle.

Abstract: A system can include a solenoid manifold including a plurality of solenoid valves to control fluid flow between a tube and a plurality of nozzles, wherein one end of the tube is connected to a pump and the other end of the tube is connected to an inlet of the solenoid manifold; and a controller programmed to determine whether at least one solenoid valve of the plurality of solenoid valves is incorrectly in an open position based on pressure measurements representing a fluid pressure within the tube.

Abstract: A sensor apparatus includes a sensor window, a nozzle head coupled to the sensor window and including a first orifice and a second orifice, and a deflector fixed relative to the sensor window. The first orifice is shaped to discharge onto a first region of the sensor window. The second orifice is shaped to discharge onto a second region of the sensor window. The deflector is positioned to deflect at least some of the discharge from the second orifice onto a third region of the sensor window.

Abstract: A sensor apparatus includes a cylindrical sensor window defining an axis, and a plurality of at least three tubular segments fixed relative to the sensor window. Each tubular segment is elongated circumferentially relative to the axis. The tubular segments collectively form a ring substantially centered around the axis. Each tubular segment includes at least one first nozzle and at least one second nozzle. The first nozzles and second nozzles are arranged in an alternating pattern around the ring. The first nozzles each have a direction of discharge in a radially inward and axial direction forming a first angle with the axis, and the second nozzles each have a direction of discharge in a radially inward and axial direction forming a second angle with the axis, the second angle being different than the first angle.

Abstract: The present disclosure provides a system, device and method for detection of valvular heart disorders. The system includes: a recording unit configured to record set of heart sounds and store the set of heart sounds in a database operatively coupled to the recording unit; and a control unit configured to: segment the set of heart sounds into a plurality of slices, each having one or more audio slices; convert the audio slices into corresponding spectrograms; obtain a feature vector corresponding to the spectrograms; compare the obtained feature vector with a predetermined set of feature vectors stored in the database; and classify each of the spectrograms into either a normal spectrogram or an abnormal spectrogram, based on the comparison of the obtained feature vector with the predetermined set of feature vectors, to obtain classification scores associated with the spectrograms.

Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to identify a sensor of a vehicle with a robotic arm, capture a plurality of images of the sensor with an unmanned aerial vehicle, and actuate the robotic arm to perform maintenance on the sensor upon inputting the plurality of images to an image recognition program and obtaining output that the sensor requires maintenance.