Abstract: The present disclosure relates to a drive device, a vehicle, and a method of controlling a drive device. A drive device includes an articulated structure, a transmission structure, and a drive structure. The articulated structure includes a fixed end and a movable end articulately connected to the fixed end. The transmission structure is provided at the movable end and includes a connection rod and a rocker arm. One end of the connection rod is rotatably connected to the rocker arm, and the other end of the connection rod is rotatably connected to the fixed end. The drive structure is provided at the movable end and includes an actuator and a drive shaft. The drive shaft is fixedly connected to an end of the rocker arm away from the connection rod. The actuator drives the drive shaft to rotate the rocker arm about an axis of the drive shaft.

Abstract: A vehicle emblem raising and retracting device includes a driving mechanism, a clutch mechanism and a linkage rod mechanism. Driving mechanism is assembled in vehicle body of vehicle. Clutch mechanism is assembled below a three-dimensional vehicle emblem and is selectively connected to driving mechanism; when clutch mechanism is engaged with driving mechanism, driving mechanism drives clutch mechanism to cause three-dimensional vehicle emblem to move up and down relative to vehicle body; when clutch mechanism is disengaged from driving mechanism, clutch mechanism and three-dimensional vehicle emblem descend to inside of vehicle body under effect of their own gravity.

Abstract: Disclosed are a method and a device for controlling opening and closing of a vehicle door, a vehicle, and a computer readable storage medium. On the basis of a vehicle provided with a capacitive sensing area having a plurality of capacitive sensing points, a touch sliding operation executed by a vehicle user is acquired via the capacitive sensing area; according to trigger state information of the touch sliding operation for the plurality of capacitive sensing points, it is determined whether the touch sliding operation is an accidental touch operation; and finally, in response to that the touch sliding operation is not the accidental touch operation, according to a triggering sequence of the touch sliding operation for the plurality of capacitive sensing points, the vehicle door is immediately controlled to be opened or closed.

Abstract: A color matching observation box for an LED standard light source comprises a box body, wherein an opening is formed in one side of the box body, an observation chamber is formed by the internal space of the box body, and a standard light source is disposed at the top of the observation chamber and comprises multiple lamp beads; and each of the lamp beads comprises a purple LED chip with a wavelength of 410 nm-430 nm, a blue LED chip with a wavelength of 440 nm-460 nm, and hybrid fluorescent powder. The color matching observation box may be provided with two groups of fluorescent lamps and one group of UV lamps, wherein the UV lamps can be used separately or in combination with other light sources.

Abstract: Embodiments of the present disclosure provide a headphone including a sound production component and an ear hook. The ear hook includes a first portion and a second portion connected in sequence. The first portion being hooked up between an ear auricle and a head of a user, and the second portion is configured to be hang between an auricle of a user and a head of the user, the second portion extends toward a front outer side of the auricle, connects with the sound production component, and is configured to place the sound production component at a position close to an ear canal without blocking an opening of the ear canal, and at least a portion of the sound production component is inserted into an concha cavity. The sound production component and the first portion of the ear hook clamp the auricle in a wearing state.

Abstract: Some embodiments provide a novel method for migrating virtual machines (VMs) from a first host computer to a second host computer. The first host computer is connected to a physical network interface card (PNIC) that performs middlebox service operations for flows associated with the VMs. At the PNIC, the method receives a notification that a VM is to be migrated from the first to the second host computer. The method configures an embedded hardware switch of the PNIC to forward a set of flows associated with the VM to a firewall of the PNIC. The embedded hardware switch was initially programmed to process the set of flows instead of the firewall. The method synchronizes flow cache information regarding the set of flows from the embedded hardware switch to the firewall. The method processes the set of flows at the firewall until the VM is migrated to the second host computer.

Abstract: Some embodiments provide a novel method for offloading firewall operations from a host computer executing a set of one or more virtual machines (VMs) to a physical network interface card (PNIC) connected to the host computer. The method configures, on the PNIC, a first firewall to determine actions to perform on flows associated with the set of VMs, and to offload processing of the flows to a flow-cache second firewall of the PNIC. The method configures, on the PNIC, the flow-cache second firewall to process a first set of flows based on a first set of actions determined by the first firewall, and to offload processing of a second set of flows to an embedded hardware switch of the PNIC. The method configures, on the PNIC, the embedded hardware switch to process the second set of flows based on a second set of actions determined by the first firewall.

Abstract: Some embodiments provide a novel method for processing flows at an embedded hardware switch of a physical network interface card (PNIC) connected to a host computer. A firewall of the PNIC detects an end of a particular data message flow associated with a particular VM of the host computer. Processing of the particular data message flow was offloaded from the firewall to an embedded hardware switch of the PNIC. After detecting the end of the particular data message flow, the firewall ends offloading of the particular data message flow by deleting a first flow record stored at the embedded hardware switch for the particular data message flow. The firewall deletes a second flow record stored at the first firewall for the particular data message flow.

Abstract: Some embodiments provide a novel method for using connection tracking records to process data messages at a physical network interface card (PNIC) connected to a host computer. A first software firewall of the PNIC determines whether processing of a flow is passable to a second software firewall of the PNIC and to a third hardware firewall of the PNIC. The first software firewall creates a connection tracking record for the flow and data specifying whether processing of the flow is passable to the second software firewall and independently whether processing of the flow is passable to the third hardware firewall. The first software firewall provides the connection tracking record and said data to the second software firewall of the PNIC so that the second software firewall processes the flow or passes the connection tracking record and the data to the third hardware firewall if determination was that the flow is passable to the third hardware firewall.

Abstract: Some embodiments provide a novel method for updating firewall rules for data message flows processed at a physical network interface card (PNIC) connected to a host computer. A firewall of the PNIC receives an update to a particular firewall rule. The firewall identifies a particular data message flow that is processed at an embedded hardware switch of the PNIC using the particular firewall rule. The firewall updates a flow record associated with the particular data message flow to reflect the received update to the particular firewall rule. The firewall provides the updated flow record to the embedded hardware switch for the embedded hardware switch to process the particular flow according to the received update.

Abstract: The present disclosure provides a headphone including a sound production component and an ear hook. The ear hook and the sound production component form a first projection on a user's sagittal plane. In a non-wearing state, an inner contour, a first end contour, a second end contour of the first projection, and a tangent segment connecting the first end contour and the second end contour jointly define a first closed curve. A first area of the first closed curve ranges 300 mm2-500 mm2. A portion of the inner contour corresponding to the ear hook includes a first curve. The first curve has an extremum point in a first direction perpendicular to a long axis direction of a projection of the sound production component, the extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane.

Abstract: The present disclosure provides an earphone comprising a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of the ear hook's projection on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component on the sagittal plane. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane, and the upper vertex is a highest point of an inner contour of the ear hook along the user's vertical axis. An inclination angle of the long-axis direction relative to a horizontal direction is within a range of 13°-21°.

Abstract: A method for establishing a local communication link includes: generating and sending a local communication negotiation request to a cloud server in response to detecting a first local communication operation between the client and a smart device. The local communication negotiation request is configured to instruct the smart device to allocate a TCP port and feed back a local communication negotiation response carrying a port number of the TCP port to the cloud server, and the local communication negotiation response is forwarded by the cloud server to the client. The method also includes after receiving the local communication negotiation response from the cloud server, sending a first link request carrying the port number to the smart device, and establishing a first TCP link with the smart device, the TCP link being a local communication link.

Abstract: A butterfly door hinge and a vehicle having the same are provided, which includes a mounting base, a door connecting arm, a hinge connecting arm, and a limiting assembly, wherein the hinge connecting arm has one end hinged with the mounting base, and the other end hinged with the door connecting arm; the limiting assembly includes a planar limiting portion arranged on the mounting base, and a limiting body arranged on the door connecting arm, the limiting body having a spiral-type outer contour. In the disclosure, first the hinge connecting arm is used to constrain the door to swing along a fixed point, and then a posture of the door is constrained through a frictional fit between the limiting body and the planar limiting portion.

Abstract: A method for establishing a local communication link includes: generating and sending a local communication negotiation request to a cloud server in response to detecting a first local communication operation between the client and a smart device. The local communication negotiation request is configured to instruct the smart device to allocate a TCP port and feed back a local communication negotiation response carrying a port number of the TCP port to the cloud server, and the local communication negotiation response is forwarded by the cloud server to the client. The method also includes after receiving the local communication negotiation response from the cloud server, sending a first link request carrying the port number to the smart device, and establishing a first TCP link with the smart device, the TCP link being a local communication link.

Abstract: A implicit structured light decoding method, a computer equipment and a computer-readable storage medium. The method includes: traversing an image captured by a camera to acquire a grayscale value of each pixel point and an ideal neighborhood grayscale distribution; extracting and outputting an updated output image according to the grayscale value of each pixel point and the ideal neighborhood grayscale distribution and in combination with a preset output image; classifying stripe central points in the updated output image into different stripes; determining a correspondence between stripes in the updated output image and stripes in a structured light image according to the different stripes; and decoding all stripe central points by using triangulation method in combination with the correspondence between the extracted stripes and the projected stripe pattern. This solution can efficiently and robustly decode the implicit stripe-based structured light on a basis of ensuring precision.

Abstract: A video blind denoising method based on deep learning, a computer device and a computer-readable storage medium. The method includes: taking a video sequence from a video to be denoised, taking the middle frame in the video sequence as a noisy reference frame, performing an optical flow estimation on the image corresponding to the noisy reference frame and each other frame in the video sequence, to obtain optical flow fields; transforming, according to the optical flow fields, the image corresponding to each other frame in the video sequence to the noisy reference frame for registration respectively, to obtain multi-frame noisy registration images; taking the multi-frame noisy registration images as an input of a convolutional neural network, taking the noisy reference frame as the reference image, performing iterative training and denoising by using the noise2noise training principle, to obtain the denoised image. This solution may achieve the blind denoising of a video.

Abstract: A video blind denoising method based on deep learning, a computer device and a computer-readable storage medium. The method includes: taking a video sequence from a video to be denoised, taking the middle frame in the video sequence as a noisy reference frame, performing an optical flow estimation on the image corresponding to the noisy reference frame and each other frame in the video sequence, to obtain optical flow fields; transforming, according to the optical flow fields, the image corresponding to each other frame in the video sequence to the noisy reference frame for registration respectively, to obtain multi-frame noisy registration images; taking the multi-frame noisy registration images as an input of a convolutional neural network, taking the noisy reference frame as the reference image, performing iterative training and denoising by using the noise2noise training principle, to obtain the denoised image. This solution may achieve the blind denoising of a video.

Abstract: A implicit structured light decoding method, a computer equipment and a computer-readable storage medium. The method includes: traversing an image captured by a camera to acquire a grayscale value of each pixel point and an ideal neighborhood grayscale distribution; extracting and outputting an updated output image according to the grayscale value of each pixel point and the ideal neighborhood grayscale distribution and in combination with a preset output image; classifying stripe central points in the updated output image into different stripes; determining a correspondence between stripes in the updated output image and stripes in a structured light image according to the different stripes; and decoding all stripe central points by using triangulation method in combination with the correspondence between the extracted stripes and the projected stripe pattern. This solution can efficiently and robustly decode the implicit stripe-based structured light on a basis of ensuring precision.