Abstract: The present application provides a pavement technical condition detection method and device based on a three-dimensional contour. The method includes: acquiring three-dimensional contour data and grayscale data of a pavement on the basis of a line scanning three-dimensional measurement sensor; preprocessing the three-dimensional contour data and the grayscale data, where the preprocessing includes performing three-dimensional modeling according to the three-dimensional contour data to acquire three-dimensional modeling data and correcting the grayscale data; and extracting a key contour of each cross section in the three-dimensional modeling data, and performing pavement technical condition index detection on the pavement according to the three-dimensional modeling data, the key contour, and the corrected grayscale data to acquire a technical condition index of the pavement.

Abstract: Disclosed are performance metrics for evaluating the accuracy of a dynamic model in predicting the trajectory of ADV when simulating the behavior of the ADV under the control commands. The performance metrics may indicate the degree of similarity between the predicted trajectory of the dynamic model and the actual trajectory of the vehicle when applied with identical control commands. The performance metrics measure deviations of the predicted trajectory of the dynamic model from the actual trajectory based on the ground truths. The performance metrics may include cumulative or mean absolute trajectory error, end-pose difference (ED), two-sigma defect rate (?2?), the Hausdirff Distance (HAU), the longest common sub-sequence error (LCSS), or dynamic time warping (DTW). The two-sigma defect rate represents the ratio of the number of points with true location error falling out of the 2? range of the predicted location error over the total number of points in the trajectory.

Abstract: Systems, methods, and media for factoring localization uncertainty of an ADV into its planning and control process to increase the safety of the ADV. The uncertainty of the localization can be caused by sensor inaccuracy, map matching algorithm inaccuracy, and/or speed uncertainty. The localization uncertainty can have negative impact on trajectory planning and vehicle control. Embodiments described herein are intended to increase the safety of the ADV by considering localization uncertainty in trajectory planning and vehicle control. An exemplary method includes determining a confidence region for an ADV that is automatically driving on a road segment based on localization uncertainty and speed uncertainty; determining that an object is within the confidence region, and a probability of collision with the ADV based on a distance of the object to the ADV; and planning a trajectory based on the probability of collision, and controlling the ADV based on the probability of collision.

Abstract: A wireless charging receiver that includes a first coil, a second coil, and a nanocrystalline sheet is disclosed. The first coil is configured to be located within a recess in the nanocrystalline sheet and is positioned between the second coil and the nanocrystalline sheet. The first coil includes first and second terminals and the second coil includes third and fourth terminals. The first terminal is connected to the third terminal and the second terminal is connected to the fourth terminal to electrically connect the first coil to the second coil. The first coil may be formed of a flexible printed circuit board having a continuous trace or may be formed of litz wire. The first coil may be a hybrid coil with a first portion formed of a flexible printed circuit board having a continuous trace and with a second portion formed of litz wire.

Abstract: A pair of spectacles includes a main frame, auxiliary frames removably mountable in the main frame, and a nose rest fixedly disposed on the main frame. The lenses are fixed in each auxiliary frame and to replace the lens, it is only necessary to remove the auxiliary frame and install another auxiliary frame with a new lens to achieve convenient lens replacement. The fixation, disassembly, and assembly of the auxiliary frame and the main frame are made convenient by connection via magnetic attraction at one end of the auxiliary frame and a positioning tab at another end thereof. For disassembly, the magnetically attracted end is first separated, followed by removing the auxiliary frame to separate the positioning tab from a positioning slot. For assembly, the positioning tab is first placed in the positioning slot, followed by fixing the magnetically attracted end.

Abstract: Example methods and systems for validation-based service request handling are described. In one example, a computer system may obtain, from a management entity, configuration information specifying a unicast service address associated with a service node capable of providing a network service. In response to detecting a service request from the virtualized computing instance, the computer system may generate a modified service request that (a) is destined for the unicast service address and (b) includes a validation identifier (ID) associated with the virtualized computing instance. The modified service request may be forwarded towards the service node to cause the service node to perform validation based on the validation ID to determine whether to provide the network service. In response to detecting a service response from the service node, the service response, or a modified service response, may be forwarded towards the virtualized computing instance.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Provided herein is a method and apparatus for transmitting a reference signal. A method for transmitting a reference signal performed by a User Equipment (UE), comprising: determining a configuration of the reference signal; and transmitting/receiving the reference signal according to the configuration. Determining the configuration of the reference signal comprises determining one or more of: information related to transmit power of the reference signal; information related to modulation mode of the reference signal; information related to waveform of the reference signal; information related to transmission bandwidth of the reference signal; or information related to antenna ports for the reference signal.

Abstract: According to various embodiments, systems, methods, and media for evaluating an open space planner in an autonomous vehicle are disclosed. In one embodiment, an exemplary method includes receiving, at a profiling application, a record file recorded by the ADV while driving in an open space using the open space planner, and a configuration file specifying parameters of the ADV; extracting planning messages and prediction messages from the record file, each extracted message being associated with the open space planner. The method further includes generating features from the planning message and the prediction messages in view of the specified parameters of the ADV; and calculating statistical metrics from the features. The statistical metrics are then provided to an automatic tuning framework for tuning the open space planner.

Abstract: A method for signal transmission and apparatus thereof are provided. Particularly, an uplink signal transmission method is provided, comprising: reporting parameters of signal transmission quality in a specific modulation mode; acquiring configuration parameters of an uplink physical channel and/or a physical signal; and transmitting an uplink signal according to the configuration parameters of the uplink physical channel and/or the physical signal.

Abstract: A speaker device and an earphone include a housing, a coil iron support connected to the housing, a moving iron assembly, and a moving coil assembly. The moving iron assembly and the moving coil assembly are disposed on the coil iron support. A cavity is defined in the housing. A periphery of the coil iron support is embedded in the housing. The coil iron support includes a moving coil supporting portion and a moving iron supporting portion disposed on one side of the moving coil supporting portion. The moving iron assembly is partially disposed on the moving iron supporting portion. The moving coil assembly includes a voice diaphragm, a voice coil, a washer, and a magnet that are stacked in sequence. A periphery of the voice diaphragm is fixedly clamped with an inner side of the moving coil supporting portion.

Abstract: Embodiments described herein generally take the form of an electronic device including a primary and secondary display; at least the secondary display is force-sensitive and further has its force-sensing circuitry in-plane with the display. The secondary display and force-sensing circuitry may be encapsulated between two glass layers that are bonded to one another by a frit. In some embodiments the force-sensing circuitry is formed from, or constitutes part of, the frit.

Abstract: A massager for massaging limbs contains: an armrest including two accommodation cavities configured to receive two arms of a user, multiple air bags arranged on a top of a respective one accommodation cavity, and a driver fixed on a bottom of the respective one accommodation cavity. The driver includes a protective shell disposed on the armrest, at least one rotation disc arranged on the protective shell, a drive source, and a transmission mechanism. The drive source is connected with the at least one rotation disc via the transmission mechanism, and a respective one rotation disc includes multiple massage protrusions located outside the protective shell.

Abstract: The present application relates to an amino-modified chip, preparation method thereof and use thereof. The amino-modified chip comprises: a substrate and a high polymer, wherein the substrate is modified with epoxy groups; and the high polymer is attached to the substrate via the epoxy groups, at least one structural unit of the high polymer contains an amino, and the amino is a primary amino or a secondary amino.

Abstract: A battery cell includes a shell and an end cap assembly, the shell being provided with an opening, and the end cap assembly including an end cap, an insulating member and an inner terminal, wherein the end cap is arranged at the opening, and a surface of the end cap close to the shell is provided with an annular protrusion extending in a circumferential direction of the end cap; the annular protrusion shrinks inwards relative to an edge of the end cap to form a flange between an outer side of the annular protrusion and the edge of the end cap; the flange is arranged on a shell wall of the shell, and the annular protrusion extends into the shell; and the insulating member is arranged in a groove enclosed by the annular protrusion, and the inner terminal is arranged on the insulating member.

Abstract: An array substrate and a display device are disclosed, the array substrate includes: a substrate; and a plurality of pixel units disposed on the substrate, each pixel unit including: a pixel electrode; a first common electrode disposed apart from the pixel electrode, an orthographic projection of the first common electrode on the substrate and an orthographic projection of the pixel electrode on the substrate at least partially overlap; and at least one second common electrode disposed in a layer in which the first common electrode is disposed, an orthographic projection of the second common electrode on the substrate and the orthographic projection of the pixel electrode on the substrate at least partially overlap; wherein the first common electrode and the second common electrodes are insulated from each other.

Abstract: A dry ice preparation device includes an ice preparation cavity, one or more ice injection valves, an air exhaust valve, and a liquid inlet pipeline. The one or more ice injection valves are disposed on a distal end of the liquid inlet pipeline and are configured to eject liquid carbon dioxide into the ice preparation cavity by turning on a liquid outlet port. The air exhaust valve is disposed between an air exhaust port and the liquid outlet port to enable the liquid outlet port to be in communication with external air through the air exhaust port.

Abstract: An intelligent pesticide spraying robot self-adaptive to terrain of mountain land is provided. Walking mechanisms are respectively connected to both side ends of a chassis. A pesticide spraying mechanism includes rotary drive mechanisms respectively connected to both sides of the rear end of the chassis, telescopic spray boom mechanisms correspondingly connected to the rotary drive mechanisms, rotary nozzle mechanisms correspondingly connected to the telescopic spray boom mechanisms, a liquid pesticide storage box fixed to the top of the chassis, a first water pump fixed in the liquid pesticide storage box, and first water pipes in communication with the first water pump and the rotary nozzle mechanisms. A control chip of a control identification mechanism is communicatively connected to the walking mechanisms, the rotary drive mechanisms, the telescopic spray boom mechanisms, the rotary nozzle mechanisms, the first water pump, a front-end camera, side-end cameras and ultrasonic sensors respectively.

Abstract: The present invention discloses a display device, wherein the display device includes: a plurality of pixels arranged in an array, wherein liquid crystals corresponding to the plurality of pixels in odd-numbered columns have a first liquid crystal pretilt angle, and the liquid crystals corresponding to the plurality of pixels in even-numbered columns have a second liquid crystal pretilt angle; or, the liquid crystals corresponding to the plurality of pixels in odd-numbered rows have the first liquid crystal pretilt angle, and the liquid crystals corresponding to the plurality of pixels in even-numbered rows have the second liquid crystal pretilt angle; and wherein the first liquid crystal pretilt angle and the second liquid crystal pretilt angle are different from each other.

Abstract: Provided are an ionizable lipid compound with an adjacent cis-double bond structure, a preparation method therefor, and the use thereof in the delivery of an active therapeutic agent (e.g., a nucleic acid). The ionizable lipid compound can provide a higher encapsulation rate of active substances and a better cell or in vivo transfection rate, and is particularly suitable for preparing nanoparticles with a solid structure.