Abstract: A device for retracting seat leg at angle, including a leg assembly hinged to a front end of a seat frame mount, both the footrest driving link and the footrest driven link of the leg assembly are hinged to a front end of the seat frame mount respectively, an end of the first footrest link is hinged to the footrest driving link, an opposite end thereof is hinged to an end of the footrest member, an end of the second footrest link is hinged to the footrest driven link, an opposite end thereof is hinged to a middle of the footrest member including a footrest plate mounting surface used to mount a footrest plate, and the footrest plate mounting surface is retracted below the seat frame mount and is oblique with respect to a horizontal plane when the leg assembly is retracted to a limit position.

Abstract: A light-emitting device includes a lead frame having a first surface on which a patterned conductive layer is provided, and a light-emitting element. The light-emitting element includes an insulating substrate formed on the first surface, a plurality of light-emitting units formed on the insulating substrate, at least one first electrode, at least one second electrode and at least a pair of bonding wires. The first and second electrodes are respectively placed in electrical connection with a first one and a second one of the light-emitting units, and are disposed outward of the light-emitting units. Each of the pair of bonding wires is disposed to electrically connect a respective one of the first and second electrodes to the patterned conductive layer.

Abstract: The present disclosure is related to systems and methods for indoor positioning. The method includes obtaining a first location of a subject at a first time point. The method also includes determining one or more motion parameters associated with the subject at least based on one or more sensors carried by the subject. The method further includes determining, based on the first location of the subject and the one or more motion parameters associated with the subject, a second location of the subject at a second time point after the first time point. The method still further includes adjusting, at least based on surroundings information associated with the subject at the second time point, the second location of the subject to determine a target location of the subject.

Abstract: Disclosed are a temporary plugging agent and a preparation method thereof, and a method for temporary plugging and fracturing of a high-temperature reservoir. The temporary plugging agent includes the following components in mass fractions: acrylamide 5%, composite crosslinking agent 1%, laponite 1%, ammonium persulfate 0.1% and water 92.9%.

Abstract: Provided are an overhead line detection method and system based on a cable inspection robot. The cable inspection robot is suspended on the overhead line. An imaging unit and a laser emission unit are disposed at the front end of the cable inspection robot. The imaging unit is at a first angle to the overhead line. The laser emission unit is at a second angle to the overhead line.

Abstract: This application discloses a TWS headset connection method, including: A TWS headset includes a first earbud and a second earbud; the first earbud performs scanning at a first scanning duty cycle, where the first scanning duty cycle is 100%; the second earbud performs advertising; if the first earbud does not find the advertising through scanning, the first earbud determines or judges whether scanning duration of the first earbud exceeds an advertising period of the second earbud; and if the scanning duration of the first earbud exceeds the advertising period of the second earbud, the first earbud is connected to an electronic device that has performed a Bluetooth pairing with the first earbud last time; or if the scanning duration of the first earbud does not exceed the advertising period of the second earbud, the first earbud continues scanning.

Abstract: There is provided an image-based information extraction model, method, and apparatus, a device, and a storage medium, which relates to the field of artificial intelligence (AI) technologies, specifically to fields of deep learning, image processing, computer vision technologies, and is applicable to optical character recognition (OCR) and other scenarios. A specific implementation solution involves: acquiring a to-be-extracted first image and a category of to-be-extracted information; and inputting the first image and the category into a pre-trained information extraction model to perform information extraction on the first image to obtain text information corresponding to the category.

Abstract: A high duty cycle ion mobility analysis apparatus includes an ion source, first and second ion storage zones, and an ion mobility analyzer. The ion mobility analyzer includes first and second channels containing a gas flow paralleled to an ion migration direction and a direct current electric field in the opposite direction of the gas flow, and the direct current electric fields in the channels are different in strength. In a continuous scanning period, ions that have not reached appropriate scanning conditions or have missed the appropriate scanning conditions and thus are unable to pass through the mobility analyzer are temporarily stored in two independent ion storage zones without being lost to be analyzed by the mobility analyzer until conditions of the scanning period or a next scanning period are appropriate.

Abstract: The present disclosure provides a method for visual question answering, which relates to fields of computer vision and natural language processing. The method includes: acquiring an input image and an input question; detecting visual information and position information of each of at least one text region in the input image; determining semantic information and attribute information of each of the at least one text region based on the visual information and the position information; determining a global feature of the input image based on the visual information, the position information, the semantic information, and the attribute information; determining a question feature based on the input question; and generating a predicted answer for the input image and the input question based on the global feature and the question feature. The present disclosure further provides a device for visual question answering, a computer device and a medium.

Abstract: The present disclosure discloses a method and apparatus for recognizing a text. The method comprises: acquiring images of a text area of an input image, the acquired images including a text centerline graph, a text direction offset graph, a text boundary offset graph, and a text character classification graph; extracting coordinates of feature points of a character center from the text centerline graph; sorting the extracted coordinates of the feature points based on the text direction offset graph to obtain a coordinate sequence of the feature points; determining a polygonal bounding box of the text area based on the coordinate sequence of the feature points of the character center and the text boundary offset graph; and determining a classification result of the feature points of the character center, based on the coordinate sequence of the feature points of the character center and the text character classification graph.

Abstract: The present application discloses a method and an apparatus for recognizing text content, and an electronic device, and relates to a text recognition technique in the field of computer technology. The specific implementation is as follows: acquiring a dial picture; detecting at least one text centerline and a bounding box corresponding to each text centerline in the dial picture; and recognizing text content in each line of text in the dial picture based on the at least one text centerline and the bounding box corresponding to each text centerline.

Abstract: The invention provides a cycloidal mass spectrometer and a method for adjusting resolution thereof. The spectrometer comprises a set of magnets, providing a magnetic field; two sets of electrode arrays, opposing to each other parallelly, each set of the electrode array including a plurality of strip electrodes arranged parallelly; at least one DC power supply, providing DC voltages to each set of the electrode array to form a DC electric field, the direction of the electric field being perpendicular to the direction of the magnetic field, and the electric field and the magnetic field superimposed on each other to form an electric-magnetic cross-field; an ion injection unit, configured to inject ions into the electric-magnetic cross-field. Said ions travel along a cycloidal trajectory in the electric-magnetic cross-field, in which the magnetic field intensity and the electric field intensity decrease simultaneously within at least part of the region in said cycloidal trajectory.

Abstract: An audio control system includes a BLUETOOTH headset, a first electronic device, and a second electronic device. The first electronic device sends a first media audio stream to the BLUETOOTH headset in response to a first operation of a user. The BLUETOOTH headset receives the first media audio stream from the first electronic device, and outputs the first media audio stream. The second electronic device outputs, in response to a second operation of the user, a second media audio stream through a first preset channel other than the BLUETOOTH headset. When the BLUETOOTH headset receives the first operation of the user, it performs one of the following actions: interrupting the second BLUETOOTH connection between the BLUETOOTH headset and the second electronic device or sending a first message to the second electronic device indicating that the BLUETOOTH headset is occupied.

Abstract: A character recognition method, a character recognition apparatus, an electronic device and a computer readable storage medium are disclosed. The character recognition method includes: determining semantic information and first position information of each individual character recognized from an image; constructing a graph network according to the semantic information and the first position information of each individual character; and determining a character recognition result of the image according to a feature of each individual character calculated by the graph network.

Abstract: An extendable seating interconnected mechanism and a seating supporting frame, including an interconnected assembly, a seating frame, and a backrest mount, wherein the backrest mount is rotatably connected to the interconnected assembly and the seating frame, respectively; the interconnected assembly includes a mounting plate and a driving link, wherein the mounting plate includes a lateral-plate part and a supporting part; the driving link is rotatably connected between the seating frame and the lateral-plate part; an end of the supporting part is connected to the lateral-plate part; and an opposite end of the supporting part is rotatably connected to the backrest mount.

Abstract: The present application discloses a method and an apparatus for optical character recognition, an electronic device and a storage medium, and relates to the fields of artificial intelligence and deep learning. The method may include: determining, for a to-be-recognized image, a text bounding box of a text area therein, and extracting a text area image from the to-be-recognized image according to the text bounding box; determining a bounding box of text lines in the text area image, and extracting a text-line image from the text area image according to the bounding box; and performing text sequence recognition on the text-line image, and obtaining a recognition result. The application of the solution in the present application can improve a recognition speed and the like.

Abstract: The present disclosure provides a character detection method and apparatus, a model training method and apparatus, a device and a storage medium. The specific implementation is: acquiring a training sample, where the training sample includes a sample image and a marked image, and the marked image is an image obtained by marking a text instance in the sample image; inputting the sample image into a character detection model, to obtain segmented images and image types of the segmented images output by the character detection model, where the image type indicates that the segmented image includes a text instance, or the segmented image does not include a text instance; and adjusting a parameter of the character detection model according to the segmented images, the image types of the segmented images and the marked image.

Abstract: A text extraction method and a text extraction model training method are provided. The present disclosure relates to the technical field of artificial intelligence, in particular to the technical field of computer vision. An implementation of the method comprises: obtaining a visual encoding feature of a to-be-detected image; extracting a plurality of sets of multimodal features from the to-be-detected image, wherein each set of multimodal features includes position information of one detection frame extracted from the to-be-detected image, a detection feature in the detection frame and first text information in the detection frame; and obtaining second text information matched with a to-be-extracted attribute based on the visual encoding feature, the to-be-extracted attribute and the plurality of sets of multimodal features, wherein the to-be-extracted attribute is an attribute of text information needing to be extracted.

Abstract: An ion mobility spectrometry-mass spectrometry combined analysis device includes an ionization source producing target analyte ions; an ion mobility filter receiving at least a part of the target analyte ions from the ionization source and operating in a sub-atmospheric environment to select ions within a specified mobility range from the target analyte ions to pass; and a mass filter connected to the rear stage of the ion mobility filter selecting ions in a specified mass-to-charge ratio range from the ions within the specified mobility range to pass. The ion mobility spectrometry-mass spectrometry combined device can separate the target ions based on a collision cross section under the combined action of a scanning electric field and an external gas flow, and operate at low gas pressure, which improves the efficiency of target analysis and an intra-spectrum dynamic range, and perform highly reliable and accurate quantitative analysis on specific target ions.

Abstract: The present disclosure provides a light-adjusting glass and a manufacturing method thereof, and a glass assembly, and belongs to the field of display glass technology. The light-adjusting glass of the present disclosure includes at least one light-adjusting module; the light-adjusting module includes a first substrate and a second substrate opposite to each other, and a dye liquid crystal layer between the first substrate and the second substrate; wherein liquid crystal molecules in the dye liquid crystal layer deflect under a control of an electric field between the first substrate and the second substrate, to control a transmittance of light; wherein the dye liquid crystal layer includes a polymer network, which is configured such that when the electric field between the first substrate and the second substrate changes, twisting degrees of the liquid crystal molecules are identical, and twisting degrees of dye molecules are identical.