Abstract: A method and device for calibrating a binocular camera and an image rectification method and device for a binocular camera, a storage medium, a terminal and an intelligent device are provided. A first focus group is acquired, which includes multiple focal lengths for calibrating, and each focal length represents a focal length of a main camera in the binocular camera, calibration operations are performed on the binocular camera based on the first focal length group, where the focal length of the main camera for shooting a calibration target plate is adjusted during each calibration operation, the adjusted focal length is determined based on the first focal length group, and a relative position between the binocular camera and the calibration target plate remains unchanged during the calibration operations, and a relationship between calibration parameters and the focal lengths is determined based on the calibration operations.

Abstract: Disclosed are a water-soluble chlorhexidine antimicrobial agent and a preparation method therefor and use thereof. The present disclosure takes hyaluronic acid as a raw material to prepare a hyaluronic acid aqueous solution or organic solution, then the hyaluronic acid aqueous solution or organic solution and a chlorhexidine solution are subjected to a complexation reaction, an insoluble substance therein is removed, and then the resulting solution is dried to obtain the water-soluble chlorhexidine antimicrobial agent, namely hyaluronic acid chlorhexidine. The hyaluronic acid chlorhexidine has a good broad-spectrum antimicrobial performance, and excellent water solubility.

Abstract: A distance adjustment apparatus and a control method of the distance adjustment apparatus are provided. The distance adjustment apparatus includes a connection component, and the connection component includes a first component and a second component. The first component is connected to the second component, and a memory alloy component is disposed in a connection region between the first component and the second component. The memory alloy component is controlled by a current to drive the first component and the second component to move closer to and/or away from each other.

Abstract: A capacitive sensor, an electronic device, and an electronic device control method are disclosed and relate to the field of sensor technologies. The capacitive sensor includes at least one plate pair. Each plate pair includes a first plate and a second plate that are placed opposite to each other. A ratio of a plate length of each plate pair to a spacing in the plate pair is greater than 1 and less than or equal to 30. The capacitive sensor can detect an air gesture of a user based on fringe field effect and has advantages of a small size and low energy consumption.

Abstract: Disclosed are a water-soluble chlorhexidine antimicrobial agent and a preparation method therefor and use thereof. The present disclosure takes hyaluronic acid as a raw material to prepare a hyaluronic acid aqueous solution or organic solution, then the hyaluronic acid aqueous solution or organic solution and a chlorhexidine solution are subjected to a complexation reaction, an insoluble substance therein is removed, and then the resulting solution is dried to obtain the water-soluble chlorhexidine antimicrobial agent, namely hyaluronic acid chlorhexidine. The hyaluronic acid chlorhexidine has a good broad-spectrum antimicrobial performance, and excellent water solubility.

Abstract: A fluorescent staining method for live cell imaging. The method includes: performing double-staining on cells by means of using fluorescein sodium and methylene blue, and using a fluorescence microscope to detect and display a clear fluorescent cell image.

Abstract: Disclosed in the present invention are a processor micro-architecture, an SoC chip and a low-power-consumption intelligent device. The processor micro-architecture comprises a co-processor and at least two main processors, wherein each main processor is connected to the co-processor by means of a request processing unit; the request processing unit is used for determining, when a usage request that is initiated by the two main processors has been received, a processing sequence for the main processors that initiate the request, and generating and sending a feedback instruction to different main processors according to the processing sequence; and the main processor is used for sending a processing instruction to the co-processor for processing when the feedback instruction represents that usage is allowed. A plurality of main controllers access the same co-processor in a shared manner, thereby satisfying an instruction-level delay, and achieving the optimum balance between performance and power consumption.

Abstract: A distance adjustment apparatus and a control method of the distance adjustment apparatus are provided. The distance adjustment apparatus includes a connection component, and the connection component includes a first component and a second component. The first component is connected to the second component, and a memory alloy component is disposed in a connection region between the first component and the second component. The memory alloy component is controlled by a current to drive the first component and the second component to move closer to and/or away from each other.

Abstract: A wearable device and an image signal processing apparatus thereof are provided. The image signal processing apparatus comprises an image acquisition device, an image data processing module, and an application processor; the application processor is used for controlling, when detecting that the wearable device enables a shooting preview mode, the image data processing module to switch from a sleep state or a power-down state to a working state; the image acquisition device is used for acquiring original image data; the image data processing module is used for obtaining the original image data and processing the original image data.

Abstract: Embodiments of the present invention provide a human-machine interaction method, including: detecting and collecting, by a robot, sensing information of a companion object of a target object and emotion information of the target object that is obtained when the target object interacts with the companion object; extracting, by the robot, an emotion feature quantity based on the emotion information, determining, based on the emotion feature quantity, an emotional pattern used by the target object to interact with the companion object, determining, based on the emotional pattern, a degree of interest of the target object in the companion object, extracting behavioral data of the companion object from the sensing information based on the degree of interest, and screening the behavioral data to obtain simulated object data; and simulating, by the robot, the companion object based on the simulated object data.

Abstract: This application provides a method, a terminal-side device, and a cloud-side device for data processing and a terminal-cloud collaboration system. The method includes: sending, by the terminal-side device, a request message to the cloud-side device; receiving, by the terminal-side device, a second neural network model that is obtained by compressing a first neural network model and that is sent by the cloud-side device, where the first neural network model is a neural network model on the cloud-side device that is used to process the cognitive computing task, and a hardware resource required when the second neural network model runs on the terminal-side device is within an available hardware resource capability range of the terminal-side device; and processing, by the terminal-side device, the cognitive computing task based on the second neural network model.

Abstract: The technology of this application relates to a sound recording method and a related device. The sound recording method includes performing a shooting operation on a subject, determining an attribute of the subject, selecting a target microphone from a sound pickup assembly based on the attribute of the subject, and performing sound recording on the subject using the target microphone.

Abstract: Disclosed are a system-on-chip and a method for managing a working mode thereof, and a smart wearable device. The method comprises the following steps: in a working mode, a master control subsystem controlling a functional subsystem to implement a corresponding function, and responding to interrupt signals of the functional subsystem and a secondary control subsystem; in a dormant mode, the secondary control subsystem responding to the interrupt signal of the functional subsystem, and the master control subsystem prohibiting responding to the interrupt signal of the functional subsystem; and in an ultra-low power consumption mode, the master subsystem being powered off, and the secondary control subsystem responding to the interrupt signal of the functional subsystem. In the present disclosure, on the premise of meeting a normal function requirement of the system-on-chip, the power consumption of the system-on-chip is reduced to the greatest possible extent.

Abstract: A method and device for calibrating a binocular camera and an image rectification method and device for a binocular camera, a storage medium, a terminal and an intelligent device are provided. A first focus group is acquired, which includes multiple focal lengths for calibrating, and each focal length represents a focal length of a main camera in the binocular camera, calibration operations are performed on the binocular camera based on the first focal length group, where the focal length of the main camera for shooting a calibration target plate is adjusted during each calibration operation, the adjusted focal length is determined based on the first focal length group, and a relative position between the binocular camera and the calibration target plate remains unchanged during the calibration operations, and a relationship between calibration parameters and the focal lengths is determined based on the calibration operations.

Abstract: A pose estimation method and an apparatus are provided, to obtain a more accurate pose estimation result. The method includes: obtaining a first event image and a first target image, where the first event image is aligned with the first target image in time sequence, the first target image includes an RGB image or a depth image, and the first event image includes an image indicating a movement trajectory that is of a target object and that is generated when the target object moves in a detection range of a motion sensor; determining integration time of the first event image; if the integration time is less than a first threshold, determining that the first target image is not for performing pose estimation; and performing pose estimation based on the first event image.

Abstract: The present discloser relates to a method for active noise cancellation. An example method includes: capturing an ambient sound to determine an ambient audio signal; and determining a working status, determining at least one corresponding wanted signal based on the working status, and then removing the at least one wanted signal from the ambient audio signal, to obtain a reference signal, where the wanted signal includes content of interest. The example method further includes determining a to-be-played signal based on the reference signal.

Abstract: This application discloses a sensing apparatus, an electronic device, and a control method for the electronic device. The sensing apparatus includes a circuit board and a plurality of control points fixed to the circuit board, and each of the plurality of control points is located at a different position on the circuit board. Each control point includes memory alloy layers and elastic layers that are superposed and fixed in a one-to-one correspondence. When temperatures of all the memory alloy layers are lower than a specified threshold, all the memory alloy layers are located in a first plane. When a temperature of a specified memory alloy layer is higher than the specified threshold, the specified memory alloy layer is bent and deformed. Each memory alloy layer is connected to two electrodes for connecting the memory alloy layer to a circuit.

Abstract: A method for preparing perovskite nanopowder through a rheological phase reaction at low-temperature that can include: taking hydroxide and metallorganic compound as initial reactants; mixing and stirring the reaction raw materials to form a solid-liquid rheological phase mixture; and controlling the reaction temperature and period, under a low-temperature condition, to prepare perovskite nanopowder in nearly spherical shape and a size of 20-100 nm. This allows for advantages such as controllable product size, low cost, high yield per unit volume, environmental friendliness, high yield per unit volume, and high repeatability. The perovskite nanopowder obtained by this way is nearly spherical, are uniform in size distribution and have controllable granularity. This can be used as the ceramic substrate for electronic components such as high-end chip capacitors and PTC thermistors, etc., as well as the raw material for manufacturing ceramic 3D printing additives and electronic ceramic ink.

Abstract: In a log management method performed by a server, the server receives a transaction and generates a command log of the transaction. When detecting the transaction is a multi-partition transaction or a non-deterministic transaction, the server generates a data log of the transaction. When the server is faulty, the server recovers data according to the command log or the data log.