Abstract: A method may capture images of the vehicle lane using a camera attached to a moving vehicle. The method may determine, based on the captured one or more images, locations of a plurality of first lane markings defining a left extent of a lane and a plurality of second lane markings defining a right extent of the lane. The method may project the determined locations in the one or more images to locations in a coordinate system of the roadway. The method may determine a plurality of widths of the lane in the coordinate system of the roadway over a range of distances. The method may determine variations of the lane widths in the coordinate system of the roadway over the range of distances. The method may rescale the lane widths over the range of distances in the coordinate system to reduce determined variations of the lane widths.

Abstract: The application belongs to the technical field of reactor of dehydrogenation apparatus, in particular to reactor of UOP propane dehydrogenation apparatus and maintenance method thereof. The reactor includes a reduction cylinder and a catalytic cylinder connected end to end, and a feeding elbow located at a lower end of the catalytic cylinder. Inside the catalytic cylinder there is a conical distributor, an inner net and an outer net located on a same axis and arranged in sequence from inside to outside. Upper ends of the conical distributor, the inner net and the outer net are all connected with an upper cover plate through bolt gaskets. Through the integral design of the inner net, the outer net and the lower cover plate, it is convenient to lift out as a whole, and workers may be prevented from being dispatched to go down into the narrow reactor to dismantle the bolts.

Abstract: Techniques for monitoring and diagnosing states of wireless network elements having a known impact on uplink interference are presented. In an aspect, a method includes receiving, by a system including a processor, diagnostic data for a cellular network including strength data representative of strengths of radio frequency signals, prior to demodulation, respectively received at a plurality of antennas of a base station of the cellular network over a defined duration of time and at a defined sampling rate. The method further includes, based on analyzing the strength data by the system, determining by the system, a state of a network element of the cellular network.

Abstract: Techniques for monitoring and diagnosing states of wireless network elements having a known impact on uplink interference are presented. In an aspect, a method includes receiving, by a system including a processor, diagnostic data for a cellular network including strength data representative of strengths of radio frequency signals, prior to demodulation, respectively received at a plurality of antennas of a base station of the cellular network over a defined duration of time and at a defined sampling rate. The method further includes, based on analyzing the strength data by the system, determining by the system, a state of a network element of the cellular network.