Abstract: A coating size correction method and apparatus, an device, storage medium, and a program product are disclosed The method includes: acquiring a first wet coating width and a first dry coating width of a first coating region on an electrode plate; calculating a first deviation between the first dry coating width and a preset coating width, and a second deviation between the first wet coating width and the first dry coating width; and determining a first correction amount based on the first deviation and the second deviation. In this application, the first correction amount for correcting the deviation is determined based on the first wet coating width and first dry coating width acquired at the same position and based on the preset coating width, thereby improving efficiency and accuracy of coating size correction.

Abstract: A coating size correction method and apparatus, an device, storage medium, and a program product are disclosed The method includes: acquiring a first wet coating width and a first dry coating width of a first coating region on an electrode plate; calculating a first deviation between the first dry coating width and a preset coating width, and a second deviation between the first wet coating width and the first dry coating width; and determining a first correction amount based on the first deviation and the second deviation. In this application, the first correction amount for correcting the deviation is determined based on the first wet coating width and first dry coating width acquired at the same position and based on the preset coating width, thereby improving efficiency and accuracy of coating size correction.

Abstract: An electrode plate detection apparatus, method and system are disclosed. The electrode plate detection apparatus includes a detection module and a first image acquisition module. The first image acquisition module is configured to acquire images of different coating regions on an electrode plate, and send the images of the different coating regions to the detection module. The detection module is configured to detect the electrode plate according to the images of the different coating regions. As the first image acquisition module can be configured to implement the acquisition of the images of the different coating regions on the electrode plate, compared with the need to use different image acquisition modules for different coating regions, the number of the image acquisition modules can be reduced, thereby reducing the cost of the electrode plate detection apparatus.

Abstract: A microelectromechanical system (MEMS) die includes a substrate, a diaphragm made from a conductive material and supported over the substrate, and a backplate separated from the diaphragm and disposed on a side of the diaphragm opposite the substrate. The backplate includes a central electrode layer disposed on a surface facing the diaphragm, and a ring electrode layer disposed on the surface facing the diaphragm, the ring electrode layer spaced from and surrounding the central electrode layer.

Abstract: Disclosed herein are systems and methods for identifying and ranking traffic bottlenecks.

Abstract: The present application provides a deviation-correcting method and apparatus for double-sided coating, and relates to the technical field of manufacturing of batteries. The method includes: acquiring a first distance between an edge of a coating area on a first surface of an electrode plate substrate and an edge of the electrode plate substrate from a deviation-correcting cross section; acquiring a second distance between an edge of a coating area on a second surface of the electrode plate substrate and the edge of the electrode plate substrate from the deviation-correcting cross section; determining edge deviation information of the coating areas; determining a first deviation-adjusting range; and in a case that a first intersection is present in the first deviation-correcting range, determining a deviation-correcting quantity of the electrode plate substrate. According to the method, the problem of the deviation of the coating areas in the coating process can be improved.

Abstract: The present application provides a deviation-correcting method and apparatus for double-sided coating, and relates to the technical field of manufacturing of batteries. The method includes: acquiring a first distance between an edge of a coating area on a first surface of an electrode plate substrate and an edge of the electrode plate substrate from a deviation-correcting cross section; acquiring a second distance between an edge of a coating area on a second surface of the electrode plate substrate and the edge of the electrode plate substrate from the deviation-correcting cross section; determining edge deviation information of the coating areas; determining a first deviation-adjusting range; and in a case that a first intersection is present in the first deviation-correcting range, determining a deviation-correcting quantity of the electrode plate substrate. According to the method, the problem of the deviation of the coating areas in the coating process can be improved.

Abstract: A detection apparatus includes a support, at least one driving apparatus provided on the support, and a first movable module. The at least one driving apparatus includes a first driving apparatus, and the first driving apparatus is connected to the first movable module. The first movable module is provided with a first sliding assembly, and a first camera connected to the first sliding assembly. The first driving apparatus is configured to control the first sliding assembly to move in a first direction to drive the first camera to move close to or away from a material to be photographed. An included angle between the first direction and a vertical direction is less than or equal to a preset angle threshold.

Abstract: Disclosed are a Bluetooth connection method and a television. The method may comprise: in response to a connection command for establishing a Bluetooth connection with a target Bluetooth device, determining a screen state of a display apparatus, wherein the screen state comprises a screen-on state or a screen-off state; if the screen state of the display apparatus is the screen-on state, establishing a Bluetooth connection with the target Bluetooth device; and if the screen state of the display apparatus is a screen-off state, forbidding the establishment of a Bluetooth connection with the target Bluetooth device. In the disclosure, a display apparatus establishes a connection with a Bluetooth device only when the screen state of the display apparatus is a screen-on state, thereby avoiding the situation where the display apparatus establishes a connection with the Bluetooth device when the display apparatus is in screen-off state.

Abstract: The present invention is directed to LiDAR systems and methods. In specific embodiments, the received signal is transformed into a histogram, facilitating the identification and filtering of one or more peaks to enhance accuracy. Various other embodiments are also provided, offering diverse solutions for optimizing LiDAR performance in different applications.

Abstract: A method of forming an acoustic transducer comprises providing a substrate and depositing a first structural layer on the substrate. The first structural layer is selectively etched to form at least one of an enclosed trench or an enclosed pillar thereon. A second structural layer is deposited on the first structural layer and includes a depression or a bump corresponding to the enclosed trench or pillar, respectively. At least the second structural layer is heated to a temperature above a glass transition temperature of the second structural layer causing the second structural layer to reflow. A diaphragm layer is deposited on the second structural layer such that the diaphragm layer includes at least one of a downward facing corrugation corresponding to the depression or an upward facing corrugation corresponding to the bump. The diaphragm layer is released, thereby forming a diaphragm suspended over the substrate.

Abstract: A microphone device includes a base and a microelectromechanical system (MEMS) transducer and an integrated circuit (IC) disposed on the base. The microphone device also includes a cover mounted on the base and covering the MEMS transducer and the IC. The MEMS transducer includes a diaphragm attached to a surface of the substrate and a back plate mounted on the substrate and in a spaced apart relationship with the diaphragm. The diaphragm is attached to the surface of the substrate along at least a portion of a periphery of the diaphragm. The diaphragm can include a silicon nitride insulating layer, and a conductive layer, that faces a conductive layer of the back plate. The MEMS transducer can include a peripheral support structure that is disposed between at least a portion of the diaphragm and the substrate. The diaphragm can include one or more pressure equalizing apertures.

Abstract: A transceiver may wirelessly transmit a communication signal at a first frequency and a sensing signal at a second frequency. The communication signal may include a command that causes a backscatter node to modulate impedance of an antenna, and thereby modulate reflectivity of the backscatter node. The communication signal may also deliver wireless power to the backscatter node. While the impedance is being modulated in response to the command, the transceiver may transmit the sensing signal and measure wireless reflections. The power of the sensing signal may be much lower than that of the communication signal. The transceiver may frequency hop the sensing signal in a wide band of frequencies and take measurements at each frequency in the hopping. Based on the measurements, a computer may determine time-of-flight or phase of a reflected signal from the backscatter node and may estimate location of the backscatter node with sub-centimeter precision.

Abstract: An acoustic transducer comprises a transducer substrate having an aperture defined therethrough. At least one diaphragm is disposed on the transducer substrate over the aperture. A back plate is disposed on the transducer substrate and axially spaced apart from the at least one diaphragm. A perimetral support structure is disposed circumferentially between the at least one diaphragm and the back plate at a radially outer perimeter of the back plate. A plurality of perimetral release holes are defined circumferentially through at least one of the at least one diaphragm or the back plate proximate to and radially inwards of the perimetral support structure, at least a portion of the plurality of perimetral release holes defining a non-circular shape.

Abstract: A microphone device includes a base and a microelectromechanical system (MEMS) transducer and an integrated circuit (IC) disposed on the base. The microphone device also includes a cover mounted on the base and covering the MEMS transducer and the IC. The MEMS transducer includes a diaphragm attached to a surface of the substrate and a back plate mounted on the substrate and in a spaced apart relationship with the diaphragm. The diaphragm is attached to the surface of the substrate along at least a portion of a periphery of the diaphragm. The diaphragm can include a silicon nitride insulating layer, and a conductive layer, that faces a conductive layer of the back plate. The MEMS transducer can include a peripheral support structure that is disposed between at least a portion of the diaphragm and the substrate. The diaphragm can include one or more pressure equalizing apertures.

Abstract: A system may sense the contents of a closed container, by analyzing a wireless signal that reflects from an RFID tag on the outside of the container. The frequency response of the tag's antenna may be affected by the relative permittivity of the contents and by the tag's environment. The frequency response may be measured in a line-of-sight environment and in a multipath environment. Channel estimates may be calculated, based on the measurements. Channel ratios may be calculated by dividing line-of-sight channel estimates by multipath channel estimates. The resulting channel ratios may be fed into a variational autoencoder, which in turn generates synthetic data that contains information about multipath environments but not the contents. The output of the variational autoencoder may be converted into synthetic channel estimates, which may in turn be employed for anomaly detection, or to train a classifier to classify contents of the container.

Abstract: Disclosed are a Bluetooth connection method and a television. The method may comprise: in response to a connection command for establishing a Bluetooth connection with a target Bluetooth device, determining a screen state of a display apparatus, wherein the screen state comprises a screen-on state or a screen-off state; if the screen state of the display apparatus is the screen-on state, establishing a Bluetooth connection with the target Bluetooth device; and if the screen state of the display apparatus is a screen-off state, forbidding the establishment of a Bluetooth connection with the target Bluetooth device. In the disclosure, a display apparatus establishes a connection with a Bluetooth device only when the screen state of the display apparatus is a screen-on state, thereby avoiding the situation where the display apparatus establishes a connection with the Bluetooth device when the display apparatus is in screen-off state.

Abstract: A microphone device includes a base and a microelectromechanical system (MEMS) transducer and an integrated circuit (IC) disposed on the base. The microphone device also includes a cover mounted on the base and covering the MEMS transducer and the IC. The MEMS transducer includes a diaphragm attached to a surface of the substrate and a back plate mounted on the substrate and in a spaced apart relationship with the diaphragm. The diaphragm is attached to the surface of the substrate along at least a portion of a periphery of the diaphragm. The diaphragm can include a silicon nitride insulating layer, and a conductive layer, that faces a conductive layer of the back plate. The MEMS transducer can include a peripheral support structure that is disposed between at least a portion of the diaphragm and the substrate. The diaphragm can include one or more pressure equalizing apertures.

Abstract: The invention belongs to the fields of amorphous alloy composites, additive manufacturing technology and hot isostatic pressing sintering forming, and in particular relates to a preparation method of tungsten particle reinforced amorphous matrix composites, comprising the following steps: (1) making tungsten powder and amorphous alloy powder into a preform by the micro-jetting and bonding 3D printing technology, specifically comprising: in the preforming process by micro-jetting and bonding, through a double-drum type powder feeding device, spraying tungsten powder and amorphous alloy powder into a layer of uniformly mixed powder layer by double nozzles, then bonding the powder layer into a bonding layer by the binder, and repeating the operations of spraying the powders and binder, so that a preform with uniform particle phase distribution is finally prepared; (2) placing the preform in a capsule, and performing heating and vacuumizing on the capsule in a heating furnace; and (3) placing the capsule in the h

Abstract: A transceiver may wirelessly transmit a communication signal at a first frequency and a sensing signal at a second frequency. The communication signal may include a command that causes a backscatter node to modulate impedance of an antenna, and thereby modulate reflectivity of the backscatter node. The communication signal may also deliver wireless power to the backscatter node. While the impedance is being modulated in response to the command, the transceiver may transmit the sensing signal and measure wireless reflections. The power of the sensing signal may be much lower than that of the communication signal. The transceiver may frequency hop the sensing signal in a wide band of frequencies and take measurements at each frequency in the hopping. Based on the measurements, a computer may determine time-of-flight or phase of a reflected signal from the backscatter node and may estimate location of the backscatter node with sub-centimeter precision.