Abstract: The present disclosure proposes a recipe recommendation method, a recipe recommendation apparatus, and a refrigerator. The method includes acquiring a freshness of a candidate food material; classifying the candidate food material as a target food material or an inedible food material based on the freshness of the candidate food material; acquiring a candidate recipe corresponding to the target food material to generating a set of candidate recipes; calculating a score for the candidate recipes, the score indicating a degree to which the candidate recipe is recommended; determining a recommended recipe based on the score of the candidate recipe in the set of candidate recipes; and recommending the recommended recipe.

Abstract: The disclosure discloses a method for detecting a vehicle in a driving assisting system. The method for detecting a vehicle in a driving assisting system includes: obtaining an image to be detected, and determining the positions of lane lines in the image to be detected; determining a valid area in the image to be detected, according to the positions of the lane lines, and the velocity of the present vehicle; and determining a detected vehicle in the valid area according to T preset weak classifiers, and thresholds corresponding to the respective weak classifiers, wherein T is a positive integer.

Abstract: The present disclosure provides a smart walking recommendation apparatus and a corresponding method, the apparatus includes an information obtaining module configured to obtain destination information and appointed arrival time information, a positioning module configured to obtain a start position of a user, a central processing module configured to calculate a distance from the start position to a destination based on the start position and the destination information, and determine whether to recommended walking based on the distance from the start position to the destination, an empirical speed, and the appointed arrival time information, and an output module configured output a walking recommendation to the user in response to determining to recommend walking.

Abstract: The present disclosure provides an automatic tracking shopping cart. The automatic tracking shopping cart comprises an automatic tracking device. The automatic tracking device is fixed to a body of the shopping cart, operative to control movement of the shopping cart for tracking a target object. The automatic tracking device comprises: an image collection unit configured to collect a color image and a depth image of a field of image; a processing unit configured to identify the target object based on the collected color image and depth image, and determine a motion parameter of the shopping cart based on a position and/or movement of the target object; and a shopping cart driving unit configured to drive the shopping cart to move based on the determined motion parameter. A method for automatically controlling movement of a shopping cart to track a target object is also provided.

Abstract: An undercarriage for an aircraft, an aircraft and an aircraft landing method are disclosed. The undercarriage includes: at least three bendable mechanical arms, wherein each mechanical arm includes a mount, a first link and a second link located in a same plane, the mount is connected with the aircraft, the mount is rotatable about an axis perpendicular to a bottom surface of the aircraft, the other end of the first link is pivotably connected with one end of the second link, and the other end of the second link is connected with a rotating wheel; a force feedback device configured to detect whether or not the mechanical arms receive forces, respectively; and drive mechanisms configured to respectively drive the mechanical arms to move such that in an outspreading process of the undercarriage, the drive mechanisms drive any one of the mechanism arms to be maintained in a current state when the force feedback device detects that the one of the mechanism arms receives a force.

Abstract: A mobile apparatus, a chassis for the mobile apparatus and an angle change method for the chassis are provided. The chassis includes: a chassis body including a first body and a second body, with each of the first body and the second body including a bottom surface and a support surface arranged opposite to each other; an angle change device, which is respectively connected with the first body and the second body, disposed between the first body and the second body in an arrangement direction of the first body and the second body, and configured to change an angle between the bottom surfaces of the first body and the second body; and a moving device, configured to move the chassis body.

Abstract: The present application discloses an unmanned aerial vehicle. The umanned aerial vehicle includes a support having a plurality of receiving slots; a plurality of arms attached to the support and a plurality of propellers respectively attached to the plurality of arms. Each of the plurality of receiving slots is configured to receive one of the plurality of arms and one of the plurality of propellers attached to the one of the plurality of arms.

Abstract: This disclosure provides a protective gear and system for cushioning an object against falling. The protective gear includes a housing conforming to a portion of the object, an airbag disposed in the housing, a detector configured to detect a motion of the object; and a controller configured to generate an actuating signal to deploy the airbag if the motion is over a threshold. The protection system includes a primary protective gear and at least one secondary protective gear.

Abstract: The present disclosure provides a smart walking recommendation apparatus and a corresponding method, the apparatus includes an information obtaining module configured to obtain destination information and appointed arrival time information, a positioning module configured to obtain a start position of a user, a central processing module configured to calculate a distance from the start position to a destination based on the start position and the destination information, and determine whether to recommended walking based on the distance from the start position to the destination, an empirical speed, and the appointed arrival time information, and an output module configured output a walking recommendation to the user in response to determining to recommend walking.

Abstract: The present disclosure relates to the field of robot technology, and discloses a spherical robot and a method of controlling the same. The spherical robot includes: a spherical shell, a spherical shell drive mechanism mounted inside the spherical shell to drive the spherical shell to spin about a center of sphere thereof, and a camera module. The spherical robot further includes a head shell in which the camera module is mounted, the head shell is located outside the spherical shell and is slideable along an outer surface of the spherical shell; and, the head shell is provided with a first magnetic component, the spherical shell drive mechanism is provided with a second magnetic component, and the first magnetic component is in a magnetic connection with the second magnetic component.

Abstract: An alloy of GexSbySezTem includes atoms of Ge, Sb, Se, and Te that form a crystalline structure having a plurality of vacancies randomly distributed in the crystalline structure. The alloy can be used to construct an optical device including a first waveguide to guide a light beam and a modulation layer disposed on the first waveguide. The modulation includes the alloy of GexSbySezTem which has a first refractive index n1 in an amorphous state and a second refractive index n2, greater than the first refractive index by at least 1, in a crystalline state. The first waveguide and the modulation layer are configured to guide about 1% to about 50% of the light beam in the modulation layer when the alloy is in the amorphous state and guide no optical mode when the alloy is in the crystalline state.

Abstract: The present disclosure relates to a powered exoskeleton. The powered exoskeleton includes a leg connection rod and a stabilizing structure. The stabilizing structure is mounted on the leg connection rod. The stabilizing structure is switched between a folded state and an unfolded state in such a manner that the stabilizing structure is folded on the leg connection rod when the stabilizing structure is in the folded state, and the stabilizing structure is suitable for being in contact with the ground and supports the leg connection rod in a tilted upward direction when the stabilizing structure is in the unfolded state.

Abstract: Traveling-wave directional filters (DFs) with multiple coupling slots are disclosed. A traveling-wave directional filter may include two terminating conductive strips in a top circuit layer of a substrate, a loop resonator in a bottom layer of a substrate, and a shared ground plane. Coupling slots in the ground plane may couple the conductive strips via the loop resonator.

Abstract: The wearable device provided by embodiments of the present disclosure is used for enhancing physical fitness, and includes a first connection member, a second connection member, a first joint member, a second joint member, a first fixing structure, a second fixing structure, a third fixing structure, a first sensor and a first controller. According to embodiments of the present disclosure, motion control may be implemented by obtaining a motion state parameter of an arm of the user and controlling, according to the motion statement parameter, the first connection member and the second connection member to act, so that the user may adjust his walking speed and stride naturally and conveniently.

Abstract: A lifesaving device and a lifesaving control method are provided. Wherein, the lifesaving device includes: at least one first detection module (200) configured for detecting human body biological characteristic information, a lifesaving device body (100) capable of being worn on a body of a user, and at least one first gasbag module (300) arranged on the lifesaving device body (100); after the first gasbag module (300) is activated, a lifesaving gasbag (1) can be popped up; the first detection module (200) is in signal connection with the first gasbag module (300) and is configured for activating the first gasbag module (300) when the biological characteristic information detected meets a first preset condition.

Abstract: A circuit and method performs a write assist for a memory cell (e.g., a static random access memory cell (SRAM)). The method includes providing a lower supply voltage signal to a voltage supply node of the memory cell using a capacitor. The lower supply voltage signal is lower in voltage level than a supply voltage signal. The method further includes lowering a common signal provided to a write driver using the capacitor.

Abstract: The A transfer tray includes a fixed tray; a movable tray which can move relative to the fixed tray; several anti-shake actuators disposed on the fixed tray; a shake detection device disposed on the movable tray or the fixed tray; and a control device. The shake detection device is configured to detect the shake information of the movable tray or the fixed tray. The control device is configured to control several anti-shake actuators to drive the movable tray to move in a direction opposite to the shaking direction based on the shake information of the movable tray or the fixed tray.

Abstract: The present application discloses a system for dispatching cleaning robots. The system includes an input subsystem configured to provide an input signal including information about foot traffic in a time period in an area. The system includes a processing subsystem to receive and process the input signal and further to determine a cleaning task under an operation scheme and generate a control signal for the cleaning task. Further the system includes a communication subsystem configured to receive the control signal from the processing subsystem and one or more first signals respectively from the one or more cleaning robots. The communication subsystem sends the control signal based on the one or more first signals to dispatch at least one cleaning robot to the area to perform the cleaning task and receives one second signal from the cleaning robot to update the operation scheme.

Abstract: The present application discloses a cleaning robot including a primary robot having a first controller configured to control a plurality of first sensors, a first communication module, a first moving apparatus, and a first cleaning assembly; and at least one secondary robot having a second controller configured to control a plurality of second sensors, a second communication module, a second moving apparatus, and a second cleaning assembly.

Abstract: An undercarriage for an aircraft, an aircraft and an aircraft landing method are disclosed. The undercarriage includes: at least three bendable mechanical arms, wherein each mechanical arm includes a mount, a first link and a second link located in a same plane, the mount is connected with the aircraft, the mount is rotatable about an axis perpendicular to a bottom surface of the aircraft, the other end of the first link is pivotably connected with one end of the second link, and the other end of the second link is connected with a rotating wheel; a force feedback device configured to detect whether or not the mechanical arms receive forces, respectively; and drive mechanisms configured to respectively drive the mechanical arms to move such that in an outspreading process of the undercarriage, the drive mechanisms drive any one of the mechanism arms to be maintained in a current state when the force feedback device detects that the one of the mechanism arms receives a force.