Abstract: A deviation detection method and a deviation detection device for detecting positional deviation of an electrode assembly during winding are provided. The method comprises: obtaining a plurality of first images and a plurality of second images by using a photographing unit during the winding process of the electrode assembly, where the first image includes a first electrode sheet, and the second image includes a second electrode sheet; matching a first image with a second image, where the first image and the second image contain the same or corresponding identification objects, and the identification objects are portions periodically formed on each winding layer of the electrode assembly; and determining whether the electrode assembly is deviated according to the boundary of the first electrode sheet in the first image and/or the boundary of the second electrode sheet in the second image in a group of matching first and second images.

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for supplying power. One example power supply circuit generally includes a switching regulator including an output coupled to a first power supply rail for coupling to a first load and to a second power supply rail for coupling to a second load, a battery node for coupling to a battery, a switch coupled between the battery node and the second power supply rail, and a logic circuit including a first input coupled to the first power supply rail, a second input coupled to the second power supply rail, and an output coupled to a control input of the switch, the logic circuit being configured to control closing of the switch when a voltage of the first power supply rail falls below a first threshold voltage or a voltage of the second power supply rail falls below a second threshold voltage.

Abstract: The present application relates to a camera calibration method and apparatus, a computer device, a storage medium, and a program product. The method includes: obtaining a first operation instruction based on a camera calibration interface; determining, from configuration information, target configuration information matching the first operation instruction and set based on the camera calibration interface; and then executing a corresponding operation in a camera calibration process based on the first operation instruction and the target configuration information. However, the camera calibration process provided by embodiments of the present application is implemented based on the camera calibration interface, without switching back and forth between a plurality of tools, thereby making the camera calibration process less cumbersome.

Abstract: Techniques and apparatus for regulating power in a power supply circuit with a three-level buck converter circuit are provided. One example power supply circuit generally includes (i) a three-level buck converter circuit including a switching node coupled to an inductive element and (ii) a control circuit coupled to the three-level buck converter circuit and configured to control the three-level buck converter circuit such that the switching node operates with more than two different constant voltage levels. One example method generally includes operating a three-level buck converter circuit including a switching node coupled to an inductive element such that the switching node operates with more than two different constant voltage levels.

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for supplying power, including battery charging. One example power supply circuit generally includes a switching regulator including an output node coupled to a power supply node, a battery node for coupling to a battery, a first transistor including a drain coupled to the power supply node, a second transistor including a source coupled to a source of the first transistor and a drain coupled to the battery node, a first current sense circuit coupled to the drain of the first transistor, and a second current sense circuit coupled to the drain of the second transistor.

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for supplying power. One example power supply circuit generally includes a switching regulator including an output coupled to a first power supply rail for coupling to a first load and to a second power supply rail for coupling to a second load, a battery node for coupling to a battery, a switch coupled between the battery node and the second power supply rail, and a logic circuit including a first input coupled to the first power supply rail, a second input coupled to the second power supply rail, and an output coupled to a control input of the switch, the logic circuit being configured to control closing of the switch when a voltage of the first power supply rail falls below a first threshold voltage or a voltage of the second power supply rail falls below a second threshold voltage.

Abstract: A debugging method for production line devices may include: receiving control commands for a plurality of first devices in a production line, where respective control programs may be configured for the plurality of first devices; and calling the control programs for the plurality of first devices according to the control commands for the plurality of first devices respectively so as to debug the plurality of first devices.

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for supplying power, including battery charging. One example power supply circuit generally includes a switching regulator including an output node; a first battery node for coupling to a first battery; a second battery node for coupling to a second battery; a first switch coupled between the output node of the switching regulator and the first battery node; and a second switch coupled between the output node of the switching regulator and the second battery node. Such a power supply circuit may independently control and monitor the charging of multiple independent batteries without using multiple chargers, may balance the batteries during discharging, and may operate without a current limit switch.

Abstract: A spot-checking method for a visual inspection system includes obtaining a plurality of to-be-inspected images, inspecting the plurality of to-be-inspected images to obtain defect types and/or parameters of a target object in the plurality of to-be-inspected images, and confirming availability of the visual inspection system based on the defect types and/or the parameters.

Abstract: A deviation detection method includes obtaining first and second images of first and second electrode sheets, respectively, of an electrode assembly during winding using first and second cameras. The method further includes determining whether the first and/or second camera is deviated according to a distance from a reference point in the first and/or second image to a specific position, which is a position of a same object appearing in the first image and the second image. The method also includes determining whether the electrode assembly is deviated according to a vertical distance from the reference point in the first image to a boundary of the first electrode sheet and a vertical distance from the reference point in the second image to a boundary of the second electrode sheet if the first camera and the second camera are not deviated.

Abstract: A spot-checking method for a visual inspection system includes obtaining a plurality of to-be-inspected images, inspecting the plurality of to-be-inspected images to obtain defect types and/or parameters of a target object in the plurality of to-be-inspected images, and confirming availability of the visual inspection system based on the defect types and/or the parameters.

Abstract: The present application relates to a camera calibration method and apparatus, a computer device, a storage medium, and a program product. The method includes: obtaining a first operation instruction based on a camera calibration interface; determining, from configuration information, target configuration information matching the first operation instruction and set based on the camera calibration interface; and then executing a corresponding operation in a camera calibration process based on the first operation instruction and the target configuration information. However, the camera calibration process provided by embodiments of the present application is implemented based on the camera calibration interface, without switching back and forth between a plurality of tools, thereby making the camera calibration process less cumbersome.

Abstract: A method and an apparatus for debugging an image detection algorithm, a device, a medium, and a program product are provided. The method includes: obtaining a debug file that includes image indication information of a plurality of images and algorithm indication information of the images; further, obtaining the images based on the image indication information of the images, and determining image detection algorithms corresponding to the images based on the algorithm indication information of the images; and further, separately executing the corresponding image detection algorithms for the images to obtain detection result information corresponding to the images. In embodiments of the present application, the images and the image detection algorithms corresponding to the images are obtained based on the debug file, and then the corresponding image detection algorithms are separately executed for the images to obtain the detection result information of the images.

Abstract: A deviation detection method and a deviation detection device for detecting positional deviation of an electrode assembly during winding are provided. The method comprises: obtaining a plurality of first images and a plurality of second images by using a photographing unit during the winding process of the electrode assembly, where the first image includes a first electrode sheet, and the second image includes a second electrode sheet; matching a first image with a second image, where the first image and the second image contain the same or corresponding identification objects, and the identification objects are portions periodically formed on each winding layer of the electrode assembly; and determining whether the electrode assembly is deviated according to the boundary of the first electrode sheet in the first image and/or the boundary of the second electrode sheet in the second image in a group of matching first and second images.

Abstract: A debugging method for production line devices may include: receiving control commands for a plurality of first devices in a production line, where respective control programs may be configured for the plurality of first devices; and calling the control programs for the plurality of first devices according to the control commands for the plurality of first devices respectively so as to debug the plurality of first devices.

Abstract: An apparatus is disclosed for implementing a multi-mode direct-current (DC)-to-DC power converter. In an example aspect, the apparatus includes a DC-to-DC power converter with a flying capacitor, an inductor, and four switches. The inductor is coupled between a second node and a battery node. A first switch is coupled between a first node and a first terminal of the flying capacitor. A second switch is coupled between the first terminal and the second node. A third switch is coupled between a second terminal of the flying capacitor and the second node. A fourth switch is coupled between the second terminal and a ground node. The DC-to-DC power converter is configured to selectively transfer power from the first node to the battery node according to a first operational mode and transfer other power from the battery node to the first node according to a second operational mode.

Abstract: A deviation detection method includes obtaining first and second images of first and second electrode sheets, respectively, of an electrode assembly during winding using first and second cameras. The method further includes determining whether the first and/or second camera is deviated according to a distance from a reference point in the first and/or second image to a specific position, which is a position of a same object appearing in the first image and the second image. The method also includes determining whether the electrode assembly is deviated according to a vertical distance from the reference point in the first image to a boundary of the first electrode sheet and a vertical distance from the reference point in the second image to a boundary of the second electrode sheet if the first camera and the second camera are not deviated.

Abstract: Provided is a photo-oxidation reaction of benzylic C—H bonds of an aromatic compound under the catalysis of an acid catalyst. The method aims to synthesize aromatic acids and acetophenones. The acid catalyst is one of Bronsted acids, including one or a mixture of two or more selected from the group consisting of hydrochloric acid, phosphoric acid, sulfuric acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, trifluoroacetic acid, and potassium hydrogen sulfate, as well as N-propylsulfonate pyridinium hydrogensulfate, N-butylsulfonate pyridinium hydrogensulfate, N-propylsulfonate pyridinium trifluoromethanesulfonate, N-butylsulfonate pyridinium trifluoromethanesulfonate, N-propylsulfonate pyridinium tetrafluoroborate, and N-butylsulfonate pyridinium tetrafluoroborate. The oxidation reaction is conducted under mild conditions (normal temperature and pressure) using air or oxygen as the oxidant in the presence of recyclable catalyst and solvent.

Abstract: Provided is a photo-oxidation reaction of benzylic C—H bonds of an aromatic compound under the catalysis of an acid catalyst. The method aims to synthesize aromatic acids and acetophenones. The acid catalyst is one of Bronsted acids, including one or a mixture of two or more selected from the group consisting of hydrochloric acid, phosphoric acid, sulfuric acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, trifluoroacetic acid, and potassium hydrogen sulfate, as well as N-propylsulfonate pyridinium hydrogensulfate, N-butylsulfonate pyridinium hydrogensulfate, N-propylsulfonate pyridinium trifluoromethanesulfonate, N-butylsulfonate pyridinium trifluoromethanesulfonate, N-propylsulfonate pyridinium tetrafluoroborate, and N-butylsulfonate pyridinium tetrafluoroborate. The oxidation reaction is conducted under mild conditions (normal temperature and pressure) using air or oxygen as the oxidant in the presence of recyclable catalyst and solvent.

Abstract: Disclosed is a terminal, including: a display screen including a sensor area, the sensor area being a transparent display area on the display screen; a sensor disposed below the display screen, the sensor having a photosensitive portion; and a color-changing layer above the display screen, where the photosensitive portion of the sensor is within a first orthographic projection range of the sensor area, and the sensor area is within a second orthographic projection range of the color-changing layer; the transparent display area is transparent when the sensor is in operation; and the color-changing layer is configured to switch between a colorless state and a colored state.