Abstract: At least one associated image uploaded by a client is received, where the at least one associated image is obtained in response to detecting, by the client based on an image recognition method, an occurrence of a change of goods in a storage container. Based on the at least one image, difference information pertaining to a difference in the goods in the storage container is identified. Corresponding goods order change information is generated using the difference information. User order information corresponding to the client based on the goods order change information is updated. Updated user order information is sent to the client.

Abstract: This disclosure relates to radio frequency identification (RFID)-based communications technologies. In one aspect, a radio-frequency-based communications apparatus includes an antenna, a near field communication (NFC) radio frequency module and an electronic product code (EPC) radio frequency module separately connected to the antenna, an NFC processing module connected to the NFC radio frequency module, and an EPC processing module connected to the EPC radio frequency module. The NFC radio frequency module and the NFC processing module are configured to process signals transmitted according to one or more predetermined NFC protocols. The EPC radio frequency module and the EPC processing module are configured to process signals transmitted according to one or more predetermined EPC protocols.

Abstract: A device for spinal correction includes a stabilizer assembly including a hinge including a first rod-bearing leaf; a second rod-bearing leaf rotatably coupled to the first rod-bearing leaf to provide coronal or sagittal freedom of movement, or both, of the stabilizer assembly; a locking mechanism to lock the first and second rod-bearing leaves at a desired angle; a first stabilizing rod coupled to the first rod-bearing leaf; a second stabilizing rod coupled to the second rod-bearing leaf; and a plurality of monoaxial or polyaxial links, wherein each monoaxial or polyaxial link is movably coupled to the first or second stabilizing rod and is movably couplable to a first spinal rod or a second spinal rod fixed to the spine; wherein the stabilizer assembly is couplable to the first or second spinal rod to stabilize the spine to prevent compression, distraction, or translation of the spinal cord during a spinal correction.

Abstract: The present application discloses resource selection and resource transfer methods and apparatuses, and automatic vending methods and systems. The method includes the following: obtaining, by a mobile device placed within a predetermined range of a resource management terminal, data comprising changes in magnetic field intensity of the resource management terminal; determining, by the mobile device and based on the data comprising changes in the magnetic field intensity, a first target channel from a plurality of channels in a rack of the resource management terminal; and sending, by the mobile device and to the resource management terminal, a target resource selection instruction, wherein the target resource selection instruction comprises information that specifies the first target channel.

Abstract: Various embodiments include a method for diagnosing a crankcase ventilation line of a crankcase ventilation device for an internal combustion engine having a crankcase, an intake tract, and a compressor arranged in the intake tract for compressing the intake air comprising: diverting fresh air from the intake tract via a fresh air supply line; either enabling or inhibiting a flow of fresh air into a free volume of the crankcase depending on a switch position of a shut-off valve in the fresh air supply line; detecting a nitrogen oxide concentration in the crankcase during the process of crankcase ventilation, close to the point of introduction into the intake tract upstream of the compressor using a nitrogen oxide sensor; and evaluating the tightness of the crankcase ventilation line based at least in part on the detected nitrogen oxide concentration.

Abstract: While a user is located outside a verification area, one or more computing devices are used to obtain, in real time, a first image of the user. The one or more computing devices are used to store the first image among a plurality of images. While the user is located inside the verification area, the one or more computing devices are used to obtain identification information from the user. The one or more computing devices are used to identify, based on the identification information, a second image that is associated with the identification information. The one or more computing devices are used to perform identity verification on the user using the plurality of images, including the first image, and the second image.

Abstract: The present disclosure relates to a nozzle body for a fuel injection valve, the nozzle body including a cavity and an injection channel for dispensing fuel from the cavity. The injection channel includes a first section and a second section downstream of the first section, the first and second sections having a common interface. The first section extends from a fuel inlet opening to a second opening disposed at the common interface. The cross-sectional area of the first section monotonically decreases from the fuel inlet opening to the common interface. The cross-sectional area of the second section monotonically increases from the common interface to the fuel outlet opening.

Abstract: The present invention discloses a second-generation in-situ test device for strength of a shallow water sediment, including a workboat and a static cone penetration test unit carried by the workboat, where the static cone penetration unit includes a mounting frame, a penetration unit, a control cabin and a hydraulic unit; the penetration unit and the hydraulic unit are both electrically connected to the control cabin. In this solution, the workboat is used to carry the test equipment, and the static cone penetration test unit is carried on the workboat with a special structure. Based on a double-cable lifting frame, the equipment is launched and recovered through a moon pool in the center of a hull. This significantly improves the efficiency and safety of the sediment strength test operation in a shallow water environment.

Abstract: Example electrostatic soot sensors may include: a voltage supply; a first electrode; a second electrode; a guard electrode; and an insulating body isolating the first electrode and the second electrode from one another. The guard electrode may be arranged between the first and the second electrode and electrically insulated from them by the insulating body. A first electrical potential is applied to the first electrode and a second to the second electrode, with a resulting electrical voltage between the first and the second electrode. A guard potential is applied to the guard electrode. The guard potential corresponds to a first guard potential in the warm-up phase of the soot sensor and to a second guard potential in the measuring phase of the soot sensor.

Abstract: A method for operating an internal combustion engine for a motor vehicle including receiving measurement signals of a cylinder pressure sensor and determining cylinder pressure fluctuations as a function of the received measurement signals of the cylinder pressure sensor. The method also includes increasing an exhaust gas recirculation rate of the internal combustion engine as a function of the determined cylinder pressure fluctuations until a predefined limiting value of the cylinder pressure fluctuations is reached. In addition, the method includes determining an actual value of the exhaust gas recirculation rate if the predefined limiting value of the cylinder pressure fluctuations is reached, and storing the determined actual value as a setpoint value for the exhaust gas recirculation rate of the internal combustion engine.

Abstract: Various embodiments include a method of operating a diesel engine having an exhaust tract and an SCR-combined diesel particulate filter in the exhaust tract, wherein an aqueous urea solution is introduced into the exhaust tract, and an exhaust gas recirculation apparatus having an exhaust gas recirculation conduit branching off downstream of the SCR-combined diesel particulate filter for performing a low-pressure exhaust gas recirculation comprising: measuring an NH3 concentration in exhaust gas downstream of the SCR-combined diesel particulate filter; and upon exceeding a threshold value of the measured NH3 concentration, reducing the low-pressure exhaust gas recirculation rate based at least in part on the measured NH3 concentration.

Abstract: A cleaning tool capable of contracting to be cleaned and expanding to be used includes a mop and a cleaning barrel. The mop includes a mop head and a mop rod connected with the mop head. The mop rod is a rotary mop rod which is able to linearly move upwards or downward and be driven to rotate. A support site used for supporting the mop rod during rotation is arranged in the cleaning barrel. The mop further includes a transformation driving mechanism. The mop head includes movable plates and a base plate. The movable plates are located on the same plane as the base plate and are able to rotate relative to the base plate. A track mechanism is arranged between the movable plates and the base plate. The mop rod is able to rotate relative to the base plate to drive the transformation driving mechanism.

Abstract: An unlock method and system for an air-conditioning unit. The unlock system includes: a display apparatus; an input apparatus; and a control apparatus in communication with the display apparatus and the unlock system is configured to perform the following operations: generating a dynamic graphic according to at least an identification code and an update code; generating an unlock password according to at least a certificate, the identification code and the update code; receiving an unlock password through the input apparatus; comparing the unlock password received from the input apparatus with the generated unlock password; and granting a corresponding permission if the acquired unlock password is consistent with the generated unlock password.

Abstract: A method includes: receiving, at a server and from an augmented reality device, user information of a user using the augmented reality device; generating, by the server, a picture feature sample sub-library corresponding to the user information, including screening out, from a preset picture feature sample library, picture feature samples associated with the user information; and providing, to the augmented reality device, the picture feature sample sub-library, wherein the picture feature sample sub-library can be configured to be used by the augmented reality device to perform, during image scanning of an offline environment of the user, image recognition of images scanned from the offline environment by comparing the scanned images to picture features in the picture feature sample sub-library.

Abstract: A method for blockchain-based data verification is provided. The method includes: obtaining target data submitted by a data submitter, wherein a first data digest of the target data is recorded in a blockchain; computing a second data digest of the target data; determining whether the second data digest matches the first data digest of the target data recorded in the blockchain; and determining that the target data submitted by the data submitter is valid in response to determining that the second data digest matches the first data digest of the target data recorded in the blockchain.

Abstract: A method of ligand-induced regional modification of a perovskite film of perovskite optoelectronic device can include generating a ligand atmosphere, exposing a perovskite optoelectronic device in the ligand atmosphere, and removing the perovskite optoelectronic device from the ligand atmosphere. Methods for improving the performance and stability of perovskite optoelectronic devices are performed by using a ligand-induced modification of complete devices at room temperature. This post-device treatment, completely separated from the fabrication process of common perovskite optoelectronic devices, provides a general strategy to improve the stability of different completed perovskite optoelectronic devices (i.e., perovskite solar cells, perovskite light-emitting diodes, and photodetectors) without introducing any undesirable impurities during device fabrication.

Abstract: Provided is a method for blockchain-based recordkeeping and implementable by a terminal device. The method comprises: obtaining target data; computing a data digest of the target data, and extracting a key segment from the target data; signing, in a secure operation environment included in the terminal device, the data digest and/or the key segment based on a private key associated with the terminal device to generate a signature; and submitting to a blockchain the data digest, the key segment, and the signature, for one or more nodes in the blockchain to verify the signature based on a public key corresponding to the private key, and to record the data digest and the key segment in the blockchain in response to the signature being verified to be valid.

Abstract: Methods, systems, and devices, including computer programs encoded on computer storage media, for monitoring a payment machine are provided. One of the methods includes: monitoring a payment machine's interaction with a terminal; and in response to determining that the payment machine is obtaining payment information from the terminal, sending, in a low-power-consumption communication mode, attribute information of the payment machine to the terminal, causing the terminal to send the attribute information to a server for monitoring an operation status of the payment machine.

Abstract: A method for operating a nitrogen oxide sensor of a vehicle having a first nitrogen oxide sensor, a second nitrogen oxide sensor and a catalytic converter, one of the first and second nitrogen oxide sensors being arranged upstream of the catalytic converter with respect to the exhaust gas flow direction, and the other of the first and second nitrogen oxide sensors being arranged downstream of the catalytic converter, includes: determining a first characteristic value of the first nitrogen oxide sensor; determining a second characteristic value of the second nitrogen oxide sensor; determining a ratio of the first characteristic value to the second characteristic value; and adapting a sensor measured value of the second nitrogen oxide sensor in accordance with the ratio of the first characteristic value to the second characteristic value.

Abstract: A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.