Abstract: A training apparatus is disclosed, comprising: a top structure, a bottom structure, and a traction structure disposed between the top structure and the bottom structure, and wherein the traction structure is configured to be retractable along an axial direction of the top or bottom structure to achieve relative movement between the top structure and the bottom structure.

Abstract: Embodiments of the present disclosure provide a wireless charging system, a wireless charging device, and a wireless power receiving device, and relate to the field of wireless charging. The system includes a wireless charging device and a wireless power receiving device. The wireless charging device includes a wireless charging module, a first function module, and a first communication module, and the wireless charging module includes a radio frequency transmitting antenna; the wireless power receiving device includes a wireless power receiving module, a second function module and a second communication module; the wireless charging module is configured to supply power to the wireless power receiving device through the radio frequency transmitting antenna; and the first function module and the second function module communicate with each other through the first communication module and the second communication module.

Abstract: A wireless charging transmitter, a method for wireless charging, and a storage medium. The method can be applied to a transmitting component for transmitting a wireless charging signal to a terminal to be charged to wirelessly charge the terminal. A detection component can be configured to detect whether there is a living body that has entered a preset range associated with the wireless charging transmitter and generate a detection signal. An adjustment component can be connected to the transmitting component and configured to adjust a first transmitting power of the transmitting component to a second transmitting power when the detection signal indicates that there is a living body that has entered the preset range, the second transmitting power is smaller than the first transmitting power.

Abstract: The disclosure relates to a data processing device for driving assisting, a data processing method for driving assisting, and associated storage medium and vehicle. The data processing device for driving assisting includes: a data processing system configured to receive and process a plurality of vehicle data; and a processing control system configured to perform degradation control under the condition that the data processing system is degraded, to receive and process the plurality of vehicle data in a degradation mode. The data processing device for driving assisting, the data processing method for driving assisting, and the associated storage medium and vehicle perform reasonable division of processing task and degradation control on the data processing system and the processing control system, thereby under the condition that modules in the data processing device stop operating, other modules can be allocated to take over the task timely and effectively.

Abstract: A phase retrieval detection device based on diffraction information fusion of a Fresnel zone plate (FZP) (7) is provided, including a laser (1), an attenuation mirror (2), a micro-objective (3), a pinhole filter (4), a collimating objective (5), an element (6) to be detected, an FZP (7), and an image acquisition device (8) that are sequentially arranged along a light path. The phase retrieval detection device uses the FZP (7) as a light beam convergent element instead of a conventional lens, and makes an acquired diffraction spot contain more diffraction information by virtue of a multi-focus characteristic of the FZP (7). Based on a classical iterative phase retrieval method, a phase retrieval method based on the diffraction information fusion of the FZP (7) uses a diffraction light intensity distribution modulated by the FZP for retrieval to reconstruct a wider band of a wavefront to be detected.

Abstract: The present disclosure provides an apparatus and method for wavefront reconstruction based on rotationally symmetric extended structured light illumination. The apparatus includes a laser device, a neutral density filter, a microscope objective, a pinhole, a collimating lens, a beam splitter prism, a spatial light modulator, a lens to be measured, and an image acquisition device that are sequentially arranged. The method permits modulation of incident parallel light into phase grating-like structured light by using a spatial light modulator. Based on the characteristic of non-infinitely small pixel unit of the spatial light modulator, changing the modulation pattern of the spatial light modulator may result in different forms of structured light.

Abstract: The present disclosure provides a detection method of a projector, a projector, and an electronic device. The method includes: obtaining a speckle pattern, the speckle pattern being an image generated by irradiating laser light generated by a light source in the projector onto an object by an optical element; and performing an abnormality detection on the projector according to the speckle pattern.

Abstract: A step-down conversion circuit assembly and an electronic device are provided. The step-down conversion circuit assembly includes a box body, a step-down conversion circuit, a heat dissipation element, and a fan. The box body has multiple side walls, where the multiple side walls define an enclosed accommodating space, and the box body defines an air outlet on one of the multiple side walls. The step-down conversion circuit is disposed in the accommodating space of the box body. The heat dissipation element is disposed in the accommodating space of the box body and attached to the step-down conversion circuit for conducting heat. The fan is disposed between the step-down conversion circuit and the air outlet and configured to enable the heat in the accommodating space to exit from the air outlet.

Abstract: The present disclosure provides a control method of a camera module, a control device, a terminal, a nonvolatile computer readable storage medium and a computer device. The control method includes: obtaining a projection distance between a target user and the camera module; determining a control parameter of the camera module according to the projection distance and controlling the camera module based on the control parameter.

Abstract: A wireless energy emission device includes: a receiving antenna array, a signal processing module, and an emitting antenna array; wherein the receiving antenna array includes at least two receiving antennas for receiving a positioning signal emitted by a target device to be powered; the signal processing module is configured to determine an emission parameter according to a phase difference between positioning signals received by any two of the receiving antennas and position information of the emitting antenna array; and the emitting antenna array is configured to emit an energy supply signal to the target device to be powered according to the emission parameter.

Abstract: A wireless charging system is provided. The wireless charging system includes: a wireless charging device and a wireless powered device. The wireless charging device includes a light emitter configured to emit infrared light. The wireless powered device includes a surface with a light receiver disposed thereon, where the light receiver is configured to receive the infrared light emitted from the light emitter. The light receiver is further configured to convert light energy of the received infrared light into electrical energy and supply the electrical energy to power the wireless powered device.

Abstract: A laser projection module (100) and a method for detecting a fracture thereof, a depth camera (1000) and an electronic device (3000). The laser projection module (100) includes a laser emitter (10) and an optical assembly (80). The laser emitter (10) is configured to emit laser light. The laser light passes through the optical assembly (80) to form a laser pattern.

Abstract: The present disclosure provides a mobile terminal and a system for controlling a laser projector. The system includes a first drive circuit, a second drive circuit, a microprocessor coupled to the first drive circuit, and an application processor. The first drive circuit is configured to output an electrical signal to the laser projector. The second drive circuit is configured to supply power to the first drive circuit. The application processor is configured to, read a preset signal from the microprocessor, and power off the second drive circuit to power off the first drive circuit and the laser projector, or send a reset signal for restarting the microprocessor to the microprocessor, in response to that the application processor cannot read the preset signal.

Abstract: A navigation method and a related product are described. The method includes acquiring a message record; parsing the message record to obtain a starting location and a destination location; using N pre-installed map applications to perform route planning for the starting location and the destination location so as to obtain M routes, wherein N is a positive integer and M is a positive integer not less than N; and selecting a target route from among the M routes.

Abstract: The disclosure provides a device for detecting a wavefront error by modal-based optimization phase retrieval using an extended Nijboer-Zernike (ENZ) theory. The detection device includes a point light source (1), a half mirror (2), a lens (3) to be tested, a plane mirror (4) and an image sensor (5). The wavefront error of the component under test is characterized by using a Zernike polynomial, and a Zernike polynomial coefficient is solved based on an ENZ diffraction theory. The present disclosure realizes the one-time full-aperture measurement on the wavefront error of a large-aperture optical component, and can use a partially overexposed image to achieve accurate wavefront error retrieval. Meanwhile, the present disclosure overcomes the contradiction between underexposure and high signal-to-noise ratio (SNR) caused by a limited dynamic range when the image sensor (5) acquires an image. The detection device is simple and does not have high requirements for the experimental environment.

Abstract: The disclosure relates to a light supplement device or module, and a light supplement control method, a terminal, and an apparatus for the light supplement module, and belongs to the technical field of electronic devices. The light supplement module includes a circuit substrate; n Light Emitting Diodes (LED) disposed in an array on the circuit substrate, n being an integer greater than 1, and there being at least two LEDs having different colors; and a light guiding layer disposed on an upper layer of the n LEDs, wherein the LEDs are color LEDs, or the n LEDs constitute a color LED group.

Abstract: A control system (30) for a laser projector (10), a terminal (100) and a control method for the laser projector (10) are provided. The control system (30) includes a first driving circuit (31), a microprocessor (35) and an application processor (33). The first driving circuit (31) is connected with the laser projector (10). The first driving circuit (31) is configured to drive the laser projector (10) to project laser. The microprocessor (35) is connected with the first driving circuit (31). The application processor (33) is connected with the microprocessor (35). The application processor (33) is configured to send a control signal to the microprocessor (35) according to a distance between a human eye and the laser projector (10). The microprocessor (35) controls the first driving circuit (31) according to the control signal to enable the laser projector (10) to project laser according to a predetermined parameter.

Abstract: Embodiments of the present disclosure provide a system for controlling a camera component, the camera component is applicable for an electronic device, and the system may include a first processing unit and a target processing unit. The target processing unit is configured to control the camera component. The first processing unit is configured to determine whether the target processing unit writes data to the first processing unit in accordance with a preset time interval, and when the target processing unit does not write data to the first processing unit over the preset time interval, change an operating state of the camera component and/or control the electronic device to restart.

Abstract: A method for wireless charging includes: position-orientation information of a terminal for wireless charging based on a radio frequency signal transmitted by the wireless charging transmitter is acquired; whether the terminal is in a target charging state is determined based on the position-orientation information; and responsive to that it is determined that the terminal is not in the target charging state, first prompting information is output, and the first prompting information is used to prompt an adjustment of the position-orientation information of the terminal.

Abstract: A training apparatus is disclosed, comprising: a top structure, a bottom structure, and a traction structure disposed between the top structure and the bottom structure, and wherein the traction structure is configured to be retractable along an axial direction of the top or bottom structure to achieve relative movement between the top structure and the bottom structure.