Abstract: Described is a method for detecting a calibration requirement for image sensors in a vehicle. The method includes detecting a ground pattern in a generated image associated with a surrounding of a vehicle. The method includes extracting at least one key point associated with the detected ground pattern, from the generated image. The method includes determining a relative motion parameter associated with the extracted at least one key point based on tracking of the extracted at least one key point over a period of time. The method further includes detecting the calibration requirement for the image sensor based on the determined relative motion parameter and generating an output signal based on the detected calibration requirement.

Abstract: Systems, devices, and methods for detection of a scooter riding environment are described. A scooter alarm and pedestrian walkway detection system includes an alarm, a movement sensor configured to detect motion of a scooter and transmit motion data indicative of the motion to a processor, and an image capture device configured to detect features of a riding environment of the scooter and transmit riding environment data indicative of the features to the processor. The processor is configured to determine whether the riding environment of the scooter is a pedestrian walkway based on the motion data and the riding environment data. The processor is configured to activate the alarm in response to determining that the riding environment of the scooter is a pedestrian walkway.

Abstract: A transmitter for a magnetic coupler includes a plate made of a magnetic material. A first coil and a second coil are arranged on a surface of the plate. The first coil and the second coil are disposed within a periphery of the surface of the plate. A first portion of the first coil overlaps a first portion of the second coil. The transmitter emits a magnetic field.

Abstract: A casing for an onboard charger includes a sidewall having a first height and an internal wall having a second height less than the first height. A channel is defined by the internal wall and the sidewall. An inlet connects to a first end of the channel and an outlet connects to a second end of the channel. A heat dissipating liquid can flow into the channel through the inlet and out of the channel through the outlet.