Abstract: Provided is an autonomous mobile robot, includes a cover, a base and a pressure sensor assembly; the cover includes a top plate and a side plate that are integrally arranged, a connecting portion is formed between the top plate and the side plate, and the connecting portion is at least partially higher than the top plate; the base is arranged below the top plate; and the pressure sensor assembly is arranged in a manner of facing the side plate. The impact of the traditional autonomous mobile robot using a floating bump plate on the positioning accuracy of an optical component may be avoided and the reliability of the autonomous mobile robot during the movement is improved.

Abstract: A method and system for real-time river water level monitoring and early warning based on deep learning are provided. The method includes: remote sensing images of a target watershed and real-time hydrological data from monitoring points are acquired, and a topological analysis of water flow direction is performed on the remote sensing images to construct a water flow topological network. A dynamic change feature analysis of a watershed structure is performed on the remote sensing images to generate dynamic change data, and a topological evolution fitting is performed based on the dynamic change data on the water flow topological network to obtain a dynamic topological evolution network. A multi-scale temporal trend evolution analysis is performed on the real-time hydrological data to generate temporal evolution features. An evolution feature spatial location mapping of the dynamic topological evolution network is performed to construct a three-dimensional hydrological evolution model.

Abstract: The present disclosure relates to a method for testing the robustness of devices during Over-the-Air (OTA) updates. The method involves a testing environment that simulates various anomalies, such as network failures and power outages, to evaluate the device's ability to handle and recover from disruptions during the update process. Example components include a testing management platform, an OTA update server, and a testing platform that includes an anomaly injector and a data monitor. The testing platform introduces simulated anomalies and collects data on the device's response, which is analyzed to assess performance and recovery capabilities. This method ensures that devices can reliably complete updates under adverse conditions by testing their overall performance and robustness. The invention is particularly beneficial for manufacturers aiming to ensure high reliability in their devices such as Internet-of-Thing (IoT) devices and other technology products configured to receive OTA updates.

Abstract: A method and system for determining a limit scouring state of riverbed in downstream river channel of a reservoir group are provided. The method includes: collecting discharge data and cross-sectional prototype observation data of the downstream river channel of the reservoir group; establishing a correlation between discharge and a sediment carrying capacity indicator of a cross-section of a controlled hydrological station; calculating variation of the sediment carrying capacity indicator corresponding to dominant discharge; and determining and verifying the limit scouring state of the riverbed in the downstream river channel of the reservoir group.

Abstract: A method for correcting an orbit error of common-view time comparison of a space station, comprising five parts, i.e., determination of moments when two stations can simultaneously view the space station, calculation of projection coefficients of the orbit error, calculation of a three-dimensional orbit error vector set, calculation of a set of projection differences of the orbit error in line-of-sight directions of the two stations, and threshold decision. By means of calculation of the five parts, the maximum influence quantity of the orbit error on a common-view time comparison result is obtained, observation moments with the maximum influence quantity exceeding a decision threshold are eliminated, and observation points with the influence of the orbit error on the common-view time comparison less than the decision threshold are reserved.

Abstract: A device includes at least one magnetic material including a top plane, a bottom plane, and at least three legs that are directly coupled to the top and bottom planes to define first, second, third, and fourth portions of the at least one magnetic material and to form two gapless magnetic circuits. The device also includes a first wire including a first section wound around the first portion and a third section wound around the third portion, and a second wire including a second section wound around the second portion and a fourth section wound around the fourth portion. When current flows through the first and second wires, a degree of electromagnetic coupling, based on interactions with the magnetic material, between the first and second wires is based on a first number of windings of the first section over a second number of windings of the second section.

Abstract: In accordance with some embodiments of the present disclosure, a multi-level power converter circuit includes a flying capacitor, a balancing capacitor to control a voltage across the flying capacitor, a plurality of converter switches, a control switch coupled between the flying capacitor and the balancing capacitor, and control circuitry to open and close the control switch based on states of at least two converter switches of the plurality of converter switches. In some embodiments, the multi-level power converter is a three-level buck converter, and the balancing capacitor maintains a voltage across the flying capacitor to be within a threshold range of half the input voltage of the buck converter. In some embodiments, a method for operating the multi-level power converter includes using control circuitry to operate the plurality of converter switches and the control switch to selectively couple the balancing capacitor to either side of the flying capacitor.

Abstract: This application provides a channel determining method and a related apparatus, to reduce a data transmission delay and improve user experience. The method includes: A first terminal sends a first channel list to a second terminal, where the first channel list includes a channel supported by the first terminal; the first terminal receives a second channel list from the second terminal, where the second channel list includes a channel supported by the second terminal; and the first terminal communicates with the second terminal through a third channel, where the third channel is a channel included in the first channel list and the second channel list.

Abstract: A first electronic device transmits P2P service data on a first channel within a first time period, and further transmits the P2P service data on a second channel within a second time period. In other words, the first electronic device separately transmits the P2P service data on different channels in an operating time period of a P2P service (for example, an operating slot of the P2P service) and a sleep time period of the P2P service (for example, a sleep slot of the P2P service). In this way, a time length for transmitting the P2P service data is increased, to increase a throughput of the P2P service data and reduce a transmission delay of the P2P service data, thereby improving transmission efficiency of the P2P service data and improving user experience.

Abstract: A method and system for determining a limit scouring state of riverbed in downstream river channel of a reservoir group are provided. The method includes: collecting discharge data and cross-sectional prototype observation data of the downstream river channel of the reservoir group; establishing a correlation between discharge and a sediment carrying capacity indicator of a cross-section of a controlled hydrological station; calculating variation of the sediment carrying capacity indicator corresponding to dominant discharge; and determining and verifying the limit scouring state of the riverbed in the downstream river channel of the reservoir group.

Abstract: A test bench for impact leakage detection of a water hydraulic cylinder based on helium gas detection includes a test bench body, a water hydraulic cylinder, a helium bottle, a sealed container, and an impact device. The water hydraulic cylinder is detachably installed on the test bench body; an outlet end of the helium bottle is in communication with a rodless cavity of the water hydraulic cylinder, and a pressure reducing valve is installed between the helium bottle and the water hydraulic cylinder; the sealed container is detachably installed at a rod cavity of the water hydraulic cylinder, and a helium mass spectrometer leak detector is installed on the sealed container; and the impact device is fixedly installed on the test bench body, and the impact device is connected to a piston rod of the water hydraulic cylinder.

Abstract: In accordance with some embodiments of the present disclosure, a current sensing circuit includes a coupled inductor including a first winding and a second winding, a first resistor, a first capacitor including a first side coupled in series with the first resistor, where the first resistor and the first capacitor are coupled in parallel with the first winding, and a second side coupled to the outputs of the first and second windings, a second resistor a second capacitor including a first side coupled in series with the second resistor, where the second resistor and the second capacitor are coupled in parallel with the second winding, and a second side coupled to the outputs of the first and second windings, and a third capacitor including a first side coupled between the first resistor and the first capacitor, and a second side coupled between the second resistor and the second capacitor.

Abstract: A device for cavitation detection of a pure water hydraulic system based on pressure includes a chamber component; an inner diameter of the drainage nozzle gradually increases along an inflow direction of a liquid medium, so as to reduce a flow velocity of the liquid medium after being drained into the drainage nozzle; and the detection assembly includes a housing, one end of the housing facing the drainage nozzle is an open end, an elastic cover sheet is arranged in the open end, an electrode is arranged in the housing, diaphragms are respectively arranged on two sides of the electrode, and the electrode is closely attached to the elastic cover sheet through one of the diaphragms; the liquid medium is ejected from the drainage nozzle and impacts the elastic cover sheet.

Abstract: A device for cavitation monitoring of a hydraulic system includes a branch pipe connected to a hydraulic pipe; a movable unit arranged in the branch pipe and in sliding fit with the branch pipe; and an acquisition unit arranged in the branch pipe and configured to acquire position information of the movable unit. The movable unit is configured such that when a gas filling amount in a medium in the hydraulic pipe changes, the movable unit moves along the branch pipe. The device also includes an information display unit connected to the acquisition unit and configured to analyze and display the position information acquired by the acquisition unit. The device also includes a buffer unit connected to one side of the movable unit close to the hydraulic pipe.

Abstract: Several current sensing techniques are described that may be used to obtain an accurate current signal, which may help to achieve the best performance with a trans-inductor voltage regulator (TLVR) topology. The techniques may have the coupling effect from the secondary side included, so the current sensing signal is accurate for the regulation and other functions related to the current signal. The current sensing techniques may have more accurate gain and phase information in the middle frequency and high frequency ranges. The coupling effect from the secondary side may be well represented in the current sensing signal. The advantages of TLVR topology may be enhanced with accurate current information.

Abstract: Methods, systems, and devices for leveraging data already collected on a user in a secure and private manner, in particular to verify user credentials for third parties. The methods, systems, and devices innovate beyond traditional security and privacy platforms in computer systems by processing the data to create a useable metric for the purposes of the third parties, in which the useable metric preserves the security and privacy of the underlying data.

Abstract: A real-time ground fusion system is based on binocular stereo vision and an intelligent terminal. The method for accomplish real-time ground fusion includes: S1 of obtaining a disparity map about a same road scenario, and converting a disparity map in a target region into a 3D point cloud; S2 of performing pose conversion on a current frame and a next frame adjacent to the current frame, and performing inverse conversion on a 3D point cloud of the current frame; and S3 of repeating S2 with each frame in the target region as the current frame, so as to achieve ground fusion. Through the conversion and fusion of adjacent frames, holes caused by the projection of the disparity map can be filled to assist driving and output accurate height data, thereby improving comfortableness.

Abstract: A method for determining an effect relationship between various substances and cells, including: providing a first droplet, a second droplet, a third droplet, and a microwell array chip, a plurality of microwell combinations being provided on the microwell array chip, fusing the first droplet and the second droplet on the microwell array chip, and performing cell culture; adding the third droplet into the microwell array chip, and fusing the third droplet with the first fused droplet subjected to the cell culture, to obtain a second fused droplet, performing demulsification, library construction, and sequencing, and determining an effect relationship between various substances and cells on the basis of the sequencing result.

Abstract: A method for correcting an orbit error of common-view time comparison of a space station, comprising five parts, i.e., determination of moments when two stations can simultaneously view the space station, calculation of projection coefficients of the orbit error, calculation of a three-dimensional orbit error vector set, calculation of a set of projection differences of the orbit error in line-of-sight directions of the two stations, and threshold decision. By means of calculation of the five parts, the maximum influence quantity of the orbit error on a common-view time comparison result is obtained, observation moments with the maximum influence quantity exceeding a decision threshold are eliminated, and observation points with the influence of the orbit error on the common-view time comparison less than the decision threshold are reserved.

Abstract: A battery system for a vehicle is provided. The battery system comprising a battery module and a cooling system, wherein the battery module comprises a battery unit with one or more battery cell. The cooling system includes a cooling circuit comprising tubing for distribution of a cooling fluid and cooling of the one or more battery cell, the tubing comprising a battery cooling section routed along the battery unit, and one or more heat conduction elements arranged to at least partially wrap around the battery cooling section and be in contact with at least a portion of the battery unit.