Abstract: Disclosed is a wearable device, comprising a casing assembly, a circuit board, an interface assembly, and a wire assembly. The casing assembly is provided with an accommodation slot and an accommodation cavity, the circuit board is disposed within the accommodation cavity, and the interface assembly is inserted into the accommodation slot, and electrically connected with the circuit board through the wire assembly. By setting the interface assembly separately from the circuit board and utilizing the wire assembly to establish an electrical connection between the interface assembly and the circuit board, a space occupied by the interface assembly on the circuit board can be reduced, which is conducive to reducing the size of the circuit board, adjusting a mounting position and mounting attitude of the interface assembly, and the overall miniaturized design of the wearable device may be realized.

Abstract: Disclosed are a dynamic disturbance-induced rock burst test device and a test method. The test device comprise a supporting platform, a plurality of loading plates, an electromagnetic pulse emitting system, an acoustic emission monitoring system, a high-speed camera, an electromagnetic radiation detecting system and a confining pressure servo control loading system. The plurality of loading plates are arranged on a side wall of a coal rock sample and are placed inside a square chest, the electromagnetic pulse emitting system and the confining pressure servo control loading system are arranged inside a bar system, and an acoustic emission probe is arranged inside the loading plate. A three-dimensional real stress environment of the coal rock is simulated by simulating a shear stress through friction between the loading plate and the sample, as well as dynamic and static combined loading of multi-axial and multi-directional static confining pressure and stress wave disturbance.

Abstract: The present disclosure provides a controller for controlling a GaN-based semiconductor device. The controller is configured to receive a current sensing signal VCS which is indicative of a drain-to-source current of the GaN-based semiconductor device and generate a control driving signal VDRV to the GaN-based semiconductor device such that a gate-to-source voltage VGS applied to the GaN-based semiconductor device for switching on the GaN-based semiconductor device is stabilized to a voltage value equal to a reference voltage Vref over an on-time duration. Impact of the change in the voltage drop across the current sensing resistor to the operation of the GaN-based semiconductor device is eliminated.

Abstract: A device and method for diagnosing and configuring a hydraulic device based on a wireless local area network relates to diagnosis and configuration device technologies. The device includes a communication unit and mobile terminal. The communication unit reads hydraulic device data or changes device configuration, and process the data to generate webpage results. The mobile terminal transmits configuration requests, receives webpage results, and displays results in webpage form. The webpage results are formed by processing the acquired hydraulic device data at the communication unit side. The mobile terminal can complete the hydraulic device diagnosis and configuration, as long as it connects to the communication unit via WIFI and supports state of the art web content. The mobile terminal does not need additional installation of a matching diagnostic or configuration program, and is not limited as a specific device installed with a specific operating system; a general-purpose device may be used.

Abstract: The present disclosure provides a controller for controlling a GaN-based semiconductor device. The controller is configured to receive a current sensing signal VCS which is indicative of a drain-to-source current of the GaN-based semiconductor device and generate a control driving signal VDRV to the GaN-based semiconductor device such that a gate-to-source voltage VGS applied to the GaN-based semiconductor device for switching on the GaN-based semiconductor device is stabilized to a voltage value equal to a reference voltage Vref over an on-time duration. Impact of the change in the voltage drop across the current sensing resistor to the operation of the GaN-based semiconductor device is eliminated.

Abstract: A method, a system and a terminal for identity authentication, and a computer readable storage medium are provided. The method includes: acquiring a human body image of a person to be authenticated, and determining from the human body image a plurality of skeleton key points of the person to be authenticated; converting the skeleton key points into feature data, and combining the feature data to form physique feature information characterizing the person to be authenticated; processing the physique feature information using a physique feature model by inputting the physique feature information into the physique feature model, to obtain a processing result; and recognizing the identity of the person to be authenticated based on the processing result of the physique feature model.

Abstract: A method, a system and a terminal for identity authentication, and a computer readable storage medium are provided. The method for identity authentication includes: acquiring a facial image of a person to be authenticated, and determining from the facial image facial feature information of the person to be authenticated; determining a suspected object using a face authentication platform according to the facial feature information of the person to be authenticated; acquiring a human body image of the person to be authenticated, and determining from the human body image a plurality of skeleton key points of the person to be authenticated; converting the skeleton key points into feature data; and recognizing an identity of the person to be authenticated according to the feature data of the person to be authenticated and information of the suspected object.

Abstract: A method, a system and a terminal for identity authentication, and a computer readable storage medium are provided. The method for identity authentication includes: acquiring a facial image of a person to be authenticated, and determining from the facial image facial feature information of the person to be authenticated; determining a suspected object using a face authentication platform according to the facial feature information of the person to be authenticated; acquiring a human body image of the person to be authenticated, and determining from the human body image a plurality of skeleton key points of the person to be authenticated; converting the skeleton key points into feature data; and recognizing an identity of the person to be authenticated according to the feature data of the person to be authenticated and information of the suspected object.

Abstract: A method, a system and a terminal for identity authentication, and a computer readable storage medium are provided. The method includes: acquiring a human body image of a person to be authenticated, and determining from the human body image a plurality of skeleton key points of the person to be authenticated; converting the skeleton key points into feature data, and combining the feature data to form physique feature information characterizing the person to be authenticated; processing the physique feature information using a physique feature model by inputting the physique feature information into the physique feature model, to obtain a processing result; and recognizing the identity of the person to be authenticated based on the processing result of the physique feature model.

Abstract: An LED lighting based multispectral imaging system for color measurement is provided, including a main control computer and an enclosed type lamp box, where a digital camera is provided at the top of the lamp box, and an LED lamp set control apparatus, a drawer type bearing platform, and an LED lamp set are provided at the bottom of the lamp box. A to-be-measured object is placed on the drawer type bearing platform. The main control computer controls spectral power distribution of the LED lamp set to be in a reciprocal relationship with a spectral sensitivity curve of the digital camera and extracts a camera response and performs calculation, to obtain spectral reflectivity of each pixel of the to-be-measured object.

Abstract: An LED lighting based multispectral imaging system for color measurement is provided, including a main control computer and an enclosed type lamp box, where a digital camera is provided at the top of the lamp box, and an LED lamp set control apparatus, a drawer type bearing platform, and an LED lamp set are provided at the bottom of the lamp box. A to-be-measured object is placed on the drawer type bearing platform. The main control computer controls spectral power distribution of the LED lamp set to be in a reciprocal relationship with a spectral sensitivity curve of the digital camera and extracts a camera response and performs calculation, to obtain spectral reflectivity of each pixel of the to-be-measured object.