US Patent 11922641 Method and apparatus for adaptive trailer content monitoring

A load-monitoring system includes a vehicle processor and a camera mounted in a trailer. The vehicle, via the processor, displays a first image of a trailer load, received from a trailer-mounted camera and receives selection of a monitoring point on the image, via a touch-sensitive user interface displaying the image or other selection mechanism. The vehicle also receives selection of a fixed point on the image, via the user interface. If the monitoring point moves more than a threshold amount, relative to the fixed point, for example, in subsequent images captured by the camera, the vehicle alerts the driver.