Abstract: A load and sterilization combination control circuit arranged on a suction device includes a main control unit, a battery management unit, a load output unit, a load detection circuit and an ultraviolet sterilization circuit including an operation switch and an enabled switch connected with the operation switch in series and the main control unit. The load detection unit and the enabled switch are conducted to externally output. When a load of the suction device applied on the load output unit is detected by the main control unit via the load, detection circuit, the operation switch is configured to perform on-off control on the entire ultraviolet sterilization circuit after the enabled switch is turned on. The present disclosure can avoid waste electricity due to misoperation by performing a linkage control thereof and the ultraviolet sterilization circuit can work normally only after by connecting with the load and closing the operation switch.

Abstract: The present disclosure provides an in-vehicle display system and a vehicle. The in-vehicle display system includes an optical fiber holographic projection portion and a holographic image display portion. The optical fiber holographic projection portion is configured to holographically project image information of a vehicle component onto the holographic image display portion, and the holographic image display portion is configured to present an original image of the vehicle component.

Abstract: A display device is provided and includes a display panel and a flexible printed wiring substrate. The display panel is provided with a binding structure. The binding structure includes a plurality of first connection terminals arranged along a width direction of the display panel; and a flexible printed wiring substrate is electrically connected to the bonding structure of the display panel. Each of the first connection terminals is obliquely disposed along a lateral edge of the width direction of the display panel, and adjacent lateral edges of two of the adjacent first connection terminals along the width direction of the display panel are parallel to each other.

Abstract: An array substrate, a manufacturing method thereof, and a display device are disclosed. The array substrate includes: a base substrate; a gate line located on the base substrate and extending in a first direction; a data line located on the base substrate and extending in a second direction; the gate line and the data line crossing each other to define an orthographic projection of a pixel region on the base substrate; an organic film located on the gate line and the data line and located in the pixel region; and a pixel electrode located on the organic film in the pixel region. The organic film located directly above the data line has a first thickness, the organic film located directly below the pixel electrode has a second thickness, and the first thickness is greater than the second thickness.

Abstract: The present disclosure provides a method for adjusting sound quality, a system for adjusting sound quality, and a host terminal. The method includes: acquiring a coding rate range of a wireless audio device, in response to a host terminal establishing a wireless communication connection with the wireless audio device; presetting a first coding rate of the host terminal according to the coding rate range and a current signal strength of the wireless communication connection, and controlling the host terminal to transmit audio data to the wireless audio device at the first coding rate; acquiring a throughput during the transmission of the audio data fed back by the wireless audio device, and determining whether the throughput matches a current wireless transmission quality; and adjusting the first coding rate according to a determination result, to adjust the sound quality of the audio data.

Abstract: Embodiments of the present disclosure provide an image registration method and apparatus, and an image stitching method and device. The image registration method includes: calculating a correlation coefficient image between a reference image and a floating image; calculating a gradient image of the correlation coefficient image; determining a pixel with extreme correlation coefficient in the correlation coefficient image according to a pixel with extreme gradient in the gradient image; and registering the reference image and the floating image according to the pixel with extreme correlation coefficient. The above image registration method and apparatus have high universality, require a small amount of calculation, and can ensure real-time operation and obtain a more accurate registration result. The image stitching method and device are realized based on the image registration method, thereby improving the speed and accuracy.

Abstract: A channel listening method applied to an unlicensed frequency band, and an apparatus are provided, where the method includes: performing, by a communications device, clear channel assessment on a first beam, and in a process of the clear channel assessment, performing, by the communications device, a backoff based on a backoff control parameter for the first beam, where the communications device has a plurality of optional beams, the first beam is one of the plurality of optional beams, and the backoff control parameter is set based on a historical value of a backoff control parameter for at least one of the plurality of optional beams; and after the backoff succeeds, performing, by the communications device, transmission by using the first beam.

Abstract: The disclosure relates to an image processing apparatus. The image processing apparatus comprises processing circuitry configured to: obtain a direction angle value associated with the target pixel (12a-c); select for the target pixel (12a-c) a plurality of primary interpolation support pixels (10a-d) from the array of pixels (10a-d) on the basis of the position of the target pixel (12a-c); determine pixel values of a first and a second secondary interpolation support pixels (11ac, 11bd) on the basis of the pixel values of the selected primary interpolation support pixels (10a-d), the direction angle value (a, b) and the position of the target pixel (12a-c); and determine the interpolated pixel value of the target pixel (12a-c) on the basis of the pixel values of the first and second secondary interpolation support pixel (11ac, 11bd) and the position of the target pixel (12a-c).

Abstract: Provided are a method and apparatus for determining background music of a video, a terminal device, and a storage medium. The method includes: acquiring a scene selection instruction, and performing video capturing based on the scene selection instruction; after the video capturing is completed and a music selection instruction for the captured video is detected, displaying a music replacement interface; and determining background music of the captured video according to music selected on the music replacement interface.

Abstract: A display substrate and a manufacturing method thereof, a display panel, a display motherboard and a testing method thereof, and a display device are provided in the present disclosure. The display substrate is provided with a display region and at least a wiring region outside the display region. The display substrate includes a base substrate and a plurality of connection structures on the base substrate. The plurality of connection structures are connected to a plurality of edge signal terminals through a control module. All of the plurality of connection structures, the plurality of edge signal terminals and the control module are located in the wiring region. The plurality of edge signal terminals are located on an edge of the wiring region. The control circuit is configured to control the connection or disconnection between the plurality of signal terminals and the plurality of connection structures.

Abstract: A coordinate system of a camera of an autonomous vehicle is calibrated to a coordinate system of a LIDAR module using the hand eye equation. However, traditional solutions to the hand eye equation are based on robust rotation about three axes. While calibrating a camera of a car, there is usually robust rotation about only one axis. Degeneracy in rotation about two axes makes the traditional hand eye equation challenging to solve. A rotation vector is defined that has a scaling value. By using the rotation vector, the hand eye equation can be solved to calibrate a pose of the camera to a pose of the LIDAR module.

Abstract: A communication method includes: determining, by a first device, a phase tracking reference signal (PTRS) pattern, where the PTRS pattern includes one or more PTRS chunks, and each PTRS chunk includes one or more PTRS samples; and mapping, by the first device, a PTRS to one or more symbols, and sending the one or more symbols to a second device.

Abstract: A frame structure includes a frame body, a corner connector and roller mechanism arranged in a splice of adjacent side frames at a bottom of the frame body, and a guide mechanism clamped to a top of the frame body. A glass positioning slot is disposed on a first side of an inner side wall of a side frame of the frame body. A mounting slot is disposed on a first side of an outer side wall of the side frame of the frame body and used for fixing the guide mechanism or the corner connector and roller mechanism. The glass positioning slot is adjacent to the mounting slot along a lengthwise direction of the first side of the inner side wall. A sliding door is further provided.

Abstract: The present disclosure relates to a PPG signal collection method and apparatus. The method includes: collecting, by using a light sensor, a first PPG detection signal formed by a first light source, where the first light source is a green light source; collecting, by using the light sensor, a second PPG detection signal formed by a second light source, where the second light source is a red light source; further, determining, according to the first PPG detection signal, whether the first light source meets a preset collection indicator; if the first light source meets the collection indicator, determining, according to the second PPG detection signal, whether the second light source meets the collection indicator; and if the second light source meets the collection indicator, collecting, by using the light sensor, a PPG signal formed by the second light source.

Abstract: The present disclosure relate to a vehicle running board apparatus and a retractable device thereof. In some embodiments, a retractable device includes a running board holder and an arm assembly. The running board holder has a connecting portion, and the arm assembly is configured to drive the running board holder to move between an extended position and a retracted position. The arm assembly includes a first arm and a second arm. The first arm has a first end and a second end. The second end of the first arm is pivotally connected to the connecting portion of the running board holder. The second arm has a first end and a second end. The second end of the second arm is pivotally connected to the connecting portion of the running board holder. The second end of at least one of the first arm or the second arm straddles the connecting portion.

Abstract: A pixel drive circuit, a drive method thereof and a display device are provided. The pixel drive circuit includes a writing sub-circuit, an amplification sub-circuit, and a drive sub-circuit, writing sub-circuit is configured to transmit a data voltage provided by a signal input terminal to the amplification sub-circuit under control of the scan signal terminal; the amplification sub-circuit is configured to generate an amplification electrical signal according to the data voltage and output the amplification electrical signal to a drive sub-circuit, the drive sub-circuit is configured to obtain the data voltage based on the amplification electrical signal output by the amplification sub-circuit and provide a drive current to a light-emitting device under control of the data voltage, and the light-emitting device is configured to emit light according to the drive current output by the drive sub-circuit.