Abstract: A sound absorber is configured as a rectangular hexahedral box and forms a porous double-layer Helmholtz resonance sound absorbing structure, at the same time, the sound absorber in the form of a box forms a structural resonance sound absorbing device itself, and the first-order natural mode frequency of the device is identical to that of a wheel air chamber. When the box-type sound absorbing structure is assembled in a wheel, double functions of absorbing acoustic resonance of the wheel air chamber under the organic combination of Helmholtz resonance sound absorption and structural resonance sound absorption can be realized.

Abstract: A method for generating a video corpus is provided, and specifically includes: obtaining a video to be processed, where the video to be processed corresponds to voice content, and some video images of the video to be processed include a subtitle corresponding to the voice content; and obtaining, based on the voice content, a target video clip from the video to be processed, and using a subtitle included in a video image in the target video clip as an annotation text of the target video clip, to obtain a video corpus. In this way, the video corpus can be automatically generated. Impact on segmentation precision caused by a subjective cognitive error in a manual annotation process can be avoided. Further, efficiency of generating the video corpus is generally high.

Abstract: A high-precision intelligent centering device, consisting of a symmetrical synchronous centering mechanism. The invention can meet the needs of wheel centering in use with the ideal effect and high efficiency. Work is safe and reliable, degree of automation is high, and it is especially suitable for mass production on the production line.

Abstract: The application relates to a wheel with a sound absorption device, wherein the sound absorption device is arranged in a wheel air chamber to reduce acoustic resonance, the sound absorption device comprises two resonance sound absorption structure units which are connected in parallel, a first sound absorption frequency band of a first resonance sound absorption structure unit and a second sound absorption frequency band of a second resonance sound absorption structure unit are adjacent to each other or partially overlap with each other, and the resonance frequency of the wheel air chamber is contained at the adjacent part of the first sound absorption frequency band and the second sound absorption frequency band or in the overlapping area of the first sound absorption frequency band and the second sound absorption frequency band.

Abstract: The present disclosure provides a compound wheel assembling apparatus including a tensioning and fixing component and a locating ring; the tensioning and fixing component is arranged to extend into a center hole of a flange to tension and fix a flange; the tensioning and fixing component includes a base plate, a flange plate, springs, expanding petals and an expanding core; the locating ring is arranged around the base plate, and has a center axis overlapping a center axis of the base plate; the locating ring has a circle of circular-ring-shaped protrusion on its outer side.

Abstract: The present invention belongs to the technical field of oil field drilling, and relates to a ground testing device for a stabilized platform of a rotary steerable drilling tool. The ground testing device includes: a first supporting member and a second supporting member that are oppositely arranged, where the second supporting member is provided with a first mounting hole; a drill collar and a drill collar motor mounted outside the first supporting member, where a motor shaft of the drill collar motor penetrates the first supporting member and is connected to the drill collar, and a stabilized platform mounting assembly is arranged inside the drill collar; and a first vibration member connected to the drill collar and a second vibration member arranged in the first mounting hole in a sleeved manner, where an elastic member is arranged between the second vibration member and the second supporting member, and the elastic member is arranged on the second vibration member in a sleeving manner.

Abstract: A corpus annotation apparatus obtains a corpus set provided by a user through a client, where the corpus set includes a plurality of semantic categories of corpuses that the user expects to annotate, determines a manual annotation corpus and an automatic annotation corpus falling within a target semantic category in the corpus set, obtains a manual annotation result of the manual annotation corpus, and automatically annotates the automatic annotation corpus based on the manual annotation result of the manual annotation corpus. The manual annotation result and an automatic annotation result that correspond to the automatic annotation corpus are used as training data to train an inference model.

Abstract: The application relates to a wheel hub for vehicle, which comprises a flange, a rim, a spoke, a central hole, and bolt bores distributed around the central hole. According to the disclosure, the flange on the wheel front side is affixed with an extension part comprising a radial extension magnitude extending to the outer periphery of the wheel hub and an axial extension magnitude extending to the wheel front side, the extension part comprises a plurality of sections circumferentially distributed along the flange, so as to form on the wheel front side an envelope circle having a diameter size increased by twice the radial extension magnitude. The present disclosure further satisfies the additional needs of the user with respect to the overall design of the wheel.

Abstract: The present invention belongs to the technical field of oil field drilling, and relates to a ground testing device for a stabilized platform of a rotary steerable drilling tool. The ground testing device includes: a first supporting member and a second supporting member that are oppositely arranged, where the second supporting member is provided with a first mounting hole; a drill collar and a drill collar motor mounted outside the first supporting member, where a motor shaft of the drill collar motor penetrates the first supporting member and is connected to the drill collar, and a stabilized platform mounting assembly is arranged inside the drill collar; and a first vibration member connected to the drill collar and a second vibration member arranged in the first mounting hole in a sleeved manner, where an elastic member is arranged between the second vibration member and the second supporting member, and the elastic member is arranged on the second vibration member in a sleeving manner.

Abstract: A wheel rotation imaging control system, including: a wheel rotation imaging apparatus, which can display images during wheel rotation; and a data processing apparatus, which can establish a connection with the wheel rotation imaging apparatus, process data related to the wheel rotation imaging apparatus, and control the wheel rotation imaging apparatus to image. By means of wireless connection, the present application can realize non-contact remote reading and configuration of internal parameters of a wheel rotation imaging device, remote control of media playback, and the like.

Abstract: A composite wheel includes a rim, a connecting ring, a plurality of spokes and a flange all connected in sequence from the outside to the inside. One end of each spoke is provided with a thread, and the other end of each spoke is provided with a first mounting hole.

Abstract: The invention discloses a non-pneumatic tire, comprising a wheel hub; an annular belt located on the periphery of the wheel hub; spokes comprising a plurality of spokes circumferentially arranged between the annular belt and the wheel hub; each spoke being V-shaped, and the spoke comprising two inclined plates arranged at an angle and an arc-shaped apex corner area formed at the joint of the two inclined plates; a resistance part for limiting the deformation amount of the apex corner area to a deformation amount corresponding to the yield strength. According to the invention, plastic permanent deformation of spokes can be effectively avoided by adding resistance parts, and further the service life of non-pneumatic tires can be prolonged.

Abstract: A rotary imaging device for wheels and an automobile are disclosed. The rotary imaging device for wheels includes a housing matched with the wheels, and a processing component, a display component and a power supply that are installed in the housing, the processing component being electrically connected with the display component and the processing component and the display component being both electrically connected with the power supply. The processing component is configured to send received or read to-be-displayed content to the display component after preset processing, and the display component is configured to display the to-be-displayed content sent by the processing component. According to the rotary imaging device for wheels and the automobile, images or videos can be formed through rotation of the wheels.

Abstract: A method and apparatus for determining driving scene, and a vehicle are provided. The method includes: acquiring current driving data collected by a preset collection component; comparing the current driving data with a preset driving data threshold; and determining a current driving scene according to a comparison result between the current driving data and the threshold.

Abstract: A modal information completion method, an apparatus, and a device are provided. A completion apparatus first obtains a modal information group, wherein the modal information group includes at least two pieces of modal information. Then, the completion apparatus may determine, based on an attribute of the modal information group, whether a part or all of first modal information in the modal information group is missing. Subsequently, the completion apparatus determines a target feature vector of the first modal information based on a preset feature vector mapping relationship and a feature vector of second modal information in the modal information group, so that accuracy of the target feature vector of the first modal information is ensured.

Abstract: A hub rotation imaging control system, includes a power management unit, which can output required direct current for other units; a parameter monitoring unit, which can monitor surrounding environment data of the hub and vehicle driving data; a main control management unit, which can receive the environment data and vehicle driving data monitored by the parameter monitoring unit, and generate video data and control instructions according to the environment data and vehicle driving data; and a data processing unit, which can receive the video data and control instructions generated by the main control management unit, and output drive signals to drive hub imaging.

Abstract: The present application relates to a wheel with a sound absorber, the sound absorber being mounted in a wheel air chamber to reduce acoustic resonance, wherein the sound absorber is configured as a flat hexahedral box resonator and fastened to a wheel hub through a band, a first positioning mechanism is provided between the hub and the box resonator to fix the relative positions of the hub and the box resonator, and a second positioning mechanism is provided between the box resonator and the band to fix the relative positions of the box resonator and the band. According to the technical solution of the present disclosure, the resonator is positioned and fixed more reliably on the wheel, and the wheel is simple and economical in manufacturing, and convenient and controllable in installation and operation.

Abstract: A device for printing two-dimensional code identifiers in an intelligent manufacturing system is composed of a clamping and positioning part and a two-dimensional code printing part. The invention can meet the demand for printing two-dimensional code identifiers in an intelligent manufacturing system, and has ideal effects and high efficiency. The operation is safe and reliable, with high degree of automation, and is especially suitable for mass production on the production line.

Abstract: A device for printing two-dimensional code identifiers in an intelligent manufacturing system is composed of a damping and positioning part and a two-dimensional code printing part. The invention can meet the demand for printing two-dimensional code identifiers in an intelligent manufacturing system, and has ideal effects and high efficiency. The operation is safe and reliable, with high degree of automation, and is especially suitable for mass production on the production line.

Abstract: A high-precision intelligent centering device, consisting of a symmetrical synchronous centering mechanism. The invention can meet the needs of wheel centering in use with the ideal effect and high efficiency. Work is safe and reliable, degree of automation is high, and it is especially suitable for mass production on the production line.