Abstract: Disclosed is a vehicle-mounted holder, applied to a vehicle. The vehicle-mounted holder includes: a first fixing member, an adjusting arm and a second fixing member. The first fixing member includes a positioning column inserted in the inserting hole. One end of the adjusting arm is connected to the first fixing member, and the adjusting arm is provided with an adjustable joint; and the second fixing member is configured to install user's mobile device and connected to a free end of the adjusting arm.

Abstract: A method to improve sensor signal amplification performance, comprising the following steps: S1: an equipment is powered on and initialized to enable a signal processor MCU to obtain an accurate bias reference voltage value; S2: a signal communication circuit between the sensor device and the amplifier device is connected to detect a motion signal; S3: the MCU compares an amplifier device output signal read with an accurate bias reference voltage obtained during initialization, and calculates a difference value or an accumulated difference value over a preset time. If the difference value or the accumulated difference value exceeds a set threshold, it is considered that a motion has been detected, and a corresponding operation is executed according to a preset way.

Abstract: This invention is applicable to the field of the Internet of Things technology, and provides a method and a system to control the wireless node by a visible light flash pattern recognition, including: S1. light-emitting device is used to flash and illuminate a photo sensor on the wireless device according to the preset frequency or coding way; S2. the wireless device continuously reads the sample data from the photo sensor. Based on those sample data, decode the flash frequency or coding way of the light-emitting device; S3. the wireless device enters different states or carries out the operations corresponding to the coding ways according to the result data gained by decoding. By using the visible photo sensor of the current controllers to realize it, there is no need to add new components or receiving on the device, which efficiently reduces the cost and device complexity.

Abstract: The present invention relates to the field of Internet of Things (IoT) technology and discloses a method to pair and position wireless nodes by image recognition, comprising: Using a control center software to complete the positioning and pairing operations and enter the pairing information and/or the site plan; Capturing site images, completing anchor point adaptation, and circling a pairing range according to the images captured; Circling nodes to be paired within the pairing range, through wireless scanning by the control center, and creating the information list of nodes to be paired; Capturing site images of turned-on and turned-off lamps, recognizing the position of turned-on and turned-off lamps in the image, and obtaining the coordinate position list of the corresponding node according to the position of turned-on and turned-off lamps; Judging whether the node coordinate obtained falls within the node pairing range circled, by the control center.

Abstract: Disclosed is a vehicle-mounted holder, applied to a vehicle. The vehicle-mounted holder includes: a first fixing member, an adjusting arm and a second fixing member. The first fixing member includes a positioning column inserted in the inserting hole. One end of the adjusting arm is connected to the first fixing member, and the adjusting arm is provided with an adjustable joint; and the second fixing member is configured to install user's mobile device and connected to a free end of the adjusting arm.

Abstract: A ventilation structure of a core chamber of a turbofan engine having a large bypass ratio, said structure comprising: an outer bypass wall surface (1), a core chamber wall surface (4) and a core casing (7). An outer bypass flow channel (2) is formed between the outer bypass wall surface (1) and the core chamber wall surface (4). A core chamber (6) is formed between the core chamber wall surface (4) and the core casing (7). An air intake annular cavity (3) is provided in the core casing and is located at the upstream position. The air intake annular cavity (3) is used to put the outer bypass flow channel (2) and the core chamber (6) in communication. An exhaust grille (5) is further provided on the core chamber wall surface (4) and is located at a tail position.

Abstract: A ventilation structure of a core chamber of a turbofan engine having a large bypass ratio, said structure comprising: an outer bypass wall surface (1), a core chamber wall surface (4) and a core casing (7). An outer bypass flow channel (2) is formed between the outer bypass wall surface (1) and the core chamber wall surface (4). A core chamber (6) is formed between the core chamber wall surface (4) and the core casing (7). An air intake annular cavity (3) is provided in the core casing and is located at the upstream position. The air intake annular cavity (3) is used to put the outer bypass flow channel (2) and the core chamber (6) in communication. An exhaust grille (5) is further provided on the core chamber wall surface (4) and is located at a tail position.

Abstract: The present disclosure relates to a protection circuit for a display device, a display device thereof, and a method for protecting a display device using a protection circuit. The display device includes a gate driving circuit, a level shift circuit, and a power management circuit. The level shift circuit is configured to provide an input signal to a signal input terminal of the gate driving circuit. The power management circuit is configured to provide power to the gate driving circuit. The protection circuit is configured to provide a power control signal to the power management circuit based on a current at the signal input terminal of the gate driving circuit, so that the power management circuit stops providing the power to the gate driving circuit.

Abstract: A display driving circuit is provided. The display driving circuit includes a source driver, a temperature detecting circuit, and a timing control circuit, wherein the temperature detecting circuit is connected to the timing control circuit, and is configured to detect a temperature of the source driver; and the timing control circuit is further connected to the source driver, and is configured to output a source signal to the source driver based on the temperature of the source driver; wherein a magnitude of a voltage of the source signal is negatively related to the temperature of the source driver.

Abstract: A method for controlling a display panel includes: controlling polarities of data signals transmitted to pixel circuits in partial columns in a target display region to be inverted when a (KN?1)th frame is displayed; and controlling polarities of data signals transmitted to pixel circuits in other columns than the partial columns in the target display region to be inverted when a KNth frame is displayed.

Abstract: The disclosure discloses a timing controller board, a main control board, a display device and a detection method thereof. The timing controller board outputs a second level signal transmitted by a first fixed potential signal pin to the main control board through a detection circuit when a first data signal pin outputs a first level signal; the main control board loads a second potential signal transmitted by a second fixed potential signal pin to a second data signal pin and a clock signal pin through a switching circuit upon receiving the second level signal, to cause the main control board to stop sending a data signal to the timing controller board through the second data signal pin and stop sending a clock signal to the timing controller board through the clock signal pin.

Abstract: The present disclosure relates to a protection circuit for a display device, a display device thereof, and a method for protecting a display device using a protection circuit. The display device includes a gate driving circuit, a level shift circuit, and a power management circuit. The level shift circuit is configured to provide an input signal to a signal input terminal of the gate driving circuit. The power management circuit is configured to provide power to the gate driving circuit. The protection circuit is configured to provide a power control signal to the power management circuit based on a current at the signal input terminal of the gate driving circuit, so that the power management circuit stops providing the power to the gate driving circuit.

Abstract: The disclosure discloses a timing controller board, a main control board, a display device and a detection method thereof. The timing controller board outputs a second level signal transmitted by a first fixed potential signal pin to the main control board through a detection circuit when a first data signal pin outputs a first level signal; the main control board loads a second potential signal transmitted by a second fixed potential signal pin to a second data signal pin and a clock signal pin through a switching circuit upon receiving the second level signal, to cause the main control board to stop sending a data signal to the timing controller board through the second data signal pin and stop sending a clock signal to the timing controller board through the clock signal pin.

Abstract: A display driving circuit is provided. The display driving circuit includes a source driver, a temperature detecting circuit, and a timing control circuit, wherein the temperature detecting circuit is connected to the timing control circuit, and is configured to detect a temperature of the source driver; and the timing control circuit is further connected to the source driver, and is configured to output a source signal to the source driver based on the temperature of the source driver; wherein a magnitude of a voltage of the source signal is negatively related to the temperature of the source driver.

Abstract: A shift register unit and a driving method thereof, a gate drive circuit and a display device are provided. The shift register unit includes: an input circuit, connected to a pull-up node, and configured to charge the pull-up node according to an input signal; an output circuit, connected to the pull-up node and an output terminal, and configured to output an output signal to the output terminal under control of a voltage of the pull-up node; a reset circuit, connected to the pull-up node, and configured to reset the pull-up node; and a reset signal control circuit, connected to a first reset terminal and the reset circuit, and configured to generate and output a reset control signal according to a reset control input signal and a reset signal provided by the first reset terminal; the reset control signal is configured to control the reset circuit to perform a reset operation.

Abstract: A method for controlling a display panel includes: controlling polarities of data signals transmitted to pixel circuits in partial columns in a target display region to be inverted when a (KN?1)th frame is displayed; and controlling polarities of data signals transmitted to pixel circuits in other columns than the partial columns in the target display region to be inverted when a KNth frame is displayed.

Abstract: A shift register unit and a driving method thereof, a gate drive circuit and a display device are provided. The shift register unit includes: an input circuit, connected to a pull-up node, and configured to charge the pull-up node according to an input signal; an output circuit, connected to the pull-up node and an output terminal, and configured to output an output signal to the output terminal under control of a voltage of the pull-up node; a reset circuit, connected to the pull-up node, and configured to reset the pull-up node; and a reset signal control circuit, connected to a first reset terminal and the reset circuit respectively, and configured to generate and output a reset control signal according to a reset control input signal and a reset signal provided by the first reset terminal; and the reset control signal is configured to control the reset circuit to perform a reset operation.

Abstract: The present application discloses a display panel having a plurality of wirings in the fan-out area respectively connected to a plurality of signal lines in the display area, each of the plurality of wirings in the fan-out area configured to transmit a signal to one of a plurality of subpixels through one of the plurality of signal lines in the display area; and a plurality of bonding pads respectively connected to the plurality of wirings, configured to bond the plurality of wirings with a driver integrated circuit. The plurality of wirings are grouped into a plurality of groups of wirings comprising a first group of a plurality of first wirings and a second group of a plurality of second wirings. The plurality of first wirings are made of a first conductive material. The plurality of second wirings are made of a second conductive material. The second conductive material has a resistivity greater than that of the first conductive material.