Abstract: Image analysis methods based on an ultrasound imaging device and ultrasound imaging devices are provided. An image analysis method may include: obtaining an image of a first section of a target object; generating a first analysis result corresponding to the target object according to the image of the first section; obtaining an image of a second section of the target object; generating a second analysis result corresponding to the target object according to the image of the second section; generating a diagnostic analysis result of the target object according to the first analysis result and the second analysis result; and displaying the diagnostic analysis result of the target object.

Abstract: A three-phase load is powered by an SPWM driven inverter having a single shunt-topology. During operation, drain-to-source resistances of transistors of each branch of the inverter are determined. Interpolation is performed on assumed drain-to-source resistances of the transistors for different temperatures to produce a non-linear model of drain-to-source resistance to temperature for the transistors, and the drain-to-source resistances determined during operation and the non-linear model are used to estimate temperature values of the transistors. Driving of the inverter can be adjusted so that conductivity of each branch is set so that power delivered by that branch is as high as possible without exceeding an allowed drain current threshold representing a threshold junction temperature. In addition, driving of the inverter can be ceased if the temperature of a transistor exceeds the threshold temperature.

Abstract: A pressure touch pad, a pressure touch pad assembly, and an electronic device are provided. The pressure touch pad includes a printed circuit board, a pressure sensor, a pressure sensor bracket, and a touch controller. The printed circuit board is stacked on the pressure sensor bracket, a touch electrode layer is provided on the printed circuit board, the touch electrode layer is configured to output a touch sensing signal when a finger touches the touch pad; the pressure sensor is configured to deform and output a pressure sensing signal when the finger presses the pressure touch pad; and the pressure sensor bracket includes a reinforced region, a non-reinforced region, and a flexible arm, the reinforced region is fixedly connected to the printed circuit board, the non-reinforced region is fixedly connected to an outer case, and the flexible arm is connected to the reinforced region and the non-reinforced region.

Abstract: A lighting control method is provided for an ambient lighting device having an ambient lamp including at least one lighting strip, which includes a plurality of lamp beads arranged into a display frame. The method includes starting the ambient lamp and a camera; reading preset frame configuration information, and dividing the display frame into a plurality of unit frames according to the frame configuration information; reading an environment reference image captured by the camera, and dividing the environment reference image into a plurality of regional images corresponding to the plurality of unit frames according to the frame configuration information; and generating a lighting color value corresponding to each lamp bead in each unit frame, based on a main color tone of the regional image corresponding to the unit frame, and controlling the corresponding lamp beads covered by the unit frame with the lighting color value to emit light.

Abstract: A map building apparatus includes a memory storing instructions, and a processor executing the instructions to obtain a plurality of frames of images that carry image information of a target environment, obtain a motion parameter of the image capture component at a capture location of each frame of the plurality of frames of images, obtain a relative displacement between capture locations of each two frames of images based on the motion parameter of the image capture component, obtain, based on the plurality of frames of images and the relative displacement, a map layer including feature points in the plurality of frames of images, and send the map layer and the relative displacement to a server. The plurality of frames of images are captured by an image capture component. The motion parameter indicates a motion status of the image capture component. The map layer is useable to build a map.

Abstract: A lighting-effect coordinated playback method for an ambient lamp includes: obtaining a target lighting-effect including at least one sub-frame lighting-effect to be played by multiple light strips, and determining a lighting-effect coordination mode and a sub-frame duration of the target lighting-effect; determining a light strip group to which each light strip belongs according to the lighting-effect coordination mode, and determining a refresh time slot of each light strip relative to the sub-frame duration according to a total number of lighting units of the light strip contained in each light strip group; and according to the corresponding refresh time slot of each light strip, sending frame-slice control data of each frame slice of the light strip corresponding to the frame lighting-effect to the corresponding light strip at intervals, so as to control the light units of each corresponding light strip to coordinately complete playback of the sub-frame lighting-effect.

Abstract: An elasticity imaging method, device, and storage medium are provided. The method includes: transmitting an ultrasound wave to a target tissue; receiving an ultrasound echo of the ultrasound wave returned from the target tissue; obtaining an interference characteristic information representing the degree of interference to the target tissue; and when the interference characteristic information does not meet a preset condition, stopping determining an elasticity image of the target tissue according to the ultrasound echo.

Abstract: A MEMS microphone, includes a substrate with a back cavity, and a capacitive system located on the substrate, including a back plate and a diaphragm opposite to the back plate, wherein the back plate includes a body portion, a fixing portion connected with the body portion and the substrate, and a plurality of strip reinforcing ribs, the reinforcing ribs are protruded from the body portion. Compared with the related art, the MEMS microphone disclosed by the present disclosure could improve the strength of the back plate.

Abstract: A peristaltic device and a massager are provided. A mounting base is mounted on a side of a sliding seat facing away from a main body. A transmission rod has one end connected to an end of a driving rod away from the main body and the other end passing through the mounting base. A peristaltic sheet group is movably arranged on a side of the mounting base facing away from the sliding seat. The driving rod can rotate relative to the main body, such that the sliding seat drives a peristaltic assembly to move, and the transmission rod rotates and drives the peristaltic sheet group to wriggle. The peristaltic device of the present disclosure can perform telescopic motion in a peristaltic process, thereby promoting user experience.

Abstract: A portable electric inflator includes: a core assembly including a motor and an air compressing mechanism, the motor configured to drive the air compressing mechanism to compress and discharge air; a housing defining a receiving space for accommodating the core assembly, and having an external surface that defines a display receiving hole and a number of through holes communicating with the receiving space; a cloth in full contact with and covering the external surface of the housing, the cloth defining an opening, an edge of the opening extending from a junction of the display receiving hole and the external surface of the housing into the housing, forming a side surface covering portion that is in contact with an inner side surface of the display receiving hole; and a display received in the display receiving hole, the display comprising a lateral surface abutting against the side surface covering portion.