Chinese Academy of Sciences

Beijing Naura Microelectronics Equipment Co., Ltd.

Qfeeltech (beijing) Co., Ltd.

International Business Machines Corporation

Microsoft Technology Licensing, LLC

Symyx Technologies, Inc.

North China Electric Power University

Kwai Games Pte. Ltd.

University of California

Big Switch Networks, Inc.

State Grid Liaoning Electric Power Supply Co., Ltd.

Xin Wu

Guoqiang Xue

Zhenguo Ma

Qingyun Di

Chun Long Wang

Bo Zheng

Xingguo Xing

Calisto Paul Zuzarte

Ming Zhang

David A Maltz

Ting Yu Leung

Lihua Yuan

Zhen Chen

Yiming Zhang

John Frederick Hornibrook

Qi Cheng

Youqi Wang

Jing Shi

Daniel Costante Zilio

Xiaojuan Wang

Daniel Joseph Turner

Chao-Chih Chen

Jing Wang

Eric J Horvitz

Xu Zhang

Eyal Ofek

Jin Li

Jun Zhang

Xiao Li

Li Liu

Serge Bourbonnais

Quanxi Jia

Jun Lu

Bo Hu

Jeffrey Darren Couckuyt

Srinivasan Ramasubramanian

Jonathan W Wierenga

Robert Wesley Sherwood

Rajneesh Bajpai

Henan Zhang

Peijun Ding

Qihui Zhen

Austin F M D'Costa

Christian Zentgraf

Joseph Schwartz

Gregor Maier

Steve Lombardi

Mei Yang

Chang Su

David Wesley Reagor

Alan Paulin

Tanya L Swartz

Rui Zhu

Zhenyu Qian

Kenneth Hsinchao Chiang

Shuailing Li

Qiang Zhang

Minsheng Wu

Huizhong An

Richard Leegan Lane, Ii

Lihui Wen

Yue Zhuge

Xiang Wei Zhou

Guoqianq Xue

Yawen Yu

Tanxin Pi

Zhi Geng

Yanbo Wang

Linan Feng

Jiaxuan Yang

Meinan Lin

Gangjun Gong

Shengjie Zhou

Qiguo Zhang

Luyao Wang

Chunhua Lin

Zongle Ma

Ren Qiang

Jiuliang Liu

Wanli Cui

Luning Jiang

Yurui Wang

Yilin Liu

Jichao Dong

Qiang Fang

Ao Yu

Yutong Wang

Yunlong Hu

Fuping Chu

Steven R Foltyn

Wulin Tian

The present disclosure provides a method and a device for determining a motion parameter of an autonomous mobile device. The method includes: an anti-fall sensor detects a current chassis-floor distance between a chassis of the autonomous mobile device and a current floor, and transmits the current chassis-floor distance to a processor; the processor determines a correction coefficient corresponding to the current chassis-floor distance; the processor obtains an output of an optic flow sensor; the processor determines the motion parameter corresponding to the current chassis-floor distance based on a correction coefficient, a calibration coefficient, and the output of the optic flow sensor, which increases the accuracy of the motion parameter obtained through computation.

Method and device for determining motion parameter of autonomous mobile device

An autonomous mobile device and a control method are disclosed. The autonomous mobile device includes a main body and an imaging device, a detecting device, a light source assembly, and a controller disposed at the main body. The imaging device is configured to acquire image information in a predetermined direction of the main body. The predetermined direction includes an upward direction of the main body. The detecting device is configured to detect obstacle information in the upward direction of the main body. A light outputting direction of the light source assembly includes the upward direction of the main body. The controller is configured to, when the detecting device detects the obstacle within a predetermined distance range in the upward direction of the main body, control the light source assembly to turn on to provide illumination for the imaging device.

Autonomous mobile device and control method thereof

A short-offset transient electromagnetic transmission system, including: an electromagnetic transmitter with transmission power supplies P, P, P, P, grounding electrodes A, B, C, D, F, and transmission wires LA, LB, LB, LC, LC, LD, LD, LE. The electrodes A and B are connected to the transmission power supply Pvia the wires LA and LB. The electrodes B and C are connected to the transmission power supply Pvia the wires LBand LC. The electrodes C and D are connected to the transmission power supply Pvia the wires LCand LD. The electrodes D and E are connected to the transmission power supply Pvia the wires LDand LE. The wires LA and LBare pulled from the electromagnetic transmitter to the electrode B and the wires LDand LE are pulled from the electromagnetic transmitter to the electrode D in a twisted-pair manner.

Short-offset transient electromagnetic transmission system

Provided are a method for tracking carbon flow of a power system, a device and a medium. The method includes: acquiring related data of carbon flow tracking, where the related data include an injected active power sum column matrix of generator sets of all substations to be tracked, an injected carbon flow rate sum column matrix of generator sets of all substations to be tracked, an output power distribution matrix of a branch formed between substations to be tracked, and a power flow proportion distribution matrix of the branch formed between substations to be tracked; acquiring a carbon potential matrix Eof each substation to be tracked; and acquiring a carbon flow rate of each substation to be tracked, a carbon flow rate of the branch, and a carbon flow rate of an output load on the basis of the carbon potential matrix of each substation to be tracked.

Method for tracking carbon flow of power system, device and medium

The present application proposes an airborne electromagnetic signal observation device and a system carried by an unmanned aerial vehicle (UAV). The device includes an inner frame, an outer frame and a flexible support that are connected to each other. The device and the system can enhance the stability of the sensor in flight and greatly suppress motion noise.

Airborne electromagnetic signal observation device and system carried by unmanned aerial vehicle

An autonomous mobile device includes a main body, a protruding element disposed at a top portion of the main body, and a protection cover disposed at an outer side of the protruding element to cover the protruding element. The protection cover is movable relative to the protruding element when collided. The autonomous mobile device also includes a joystick sensor including a housing, a joystick, and a parameter detecting device. The autonomous mobile device further includes a position restoring device connected with the protection cover and configured to restore, after the protection cover experiences a displacement caused by an external force, the protection cover to a position where the protection cover is free from the external force. A first end of the joystick is connected to an inner portion of the housing. A second end of the joystick is connected to the protection cover.

Autonomous mobile device

This application provides an adaptive damping magnetic field sensor, including: a receiving coil, an adaptive damping matching resistance circuit, and an amplifying circuit; where the receiving coil is used for receiving an earth response signal generated by the earth under excitation of an emission source, and generating an induced voltage; the adaptive damping matching resistance circuit is used for receiving the induced voltage generated by the receiving coil and automatically matching a damping resistance value to obtain a near-source broadband observation signal; and the amplifying circuit is used for amplifying the observation signal with a constant gain and outputting a sensor output signal. This application carries out automatic matching control on the damping resistance value through the adaptive damping matching resistance circuit, thereby ensuring that the sensor can stably and reliably implement fine observation of an earth response under near-source, broadband and complex scene conditions.

Adaptive damping magnetic field sensor

A method and system for detecting a typical object of a transmission line based on UAV federated learning. The method includes: determining a detection model for a typical object of a transmission line by YOLOv3 object detection algorithm according to a prior database for the typical object; dividing a UAV network into multiple federated learning units; acquiring pictures, taken by the UAV network, of the typical object and tags corresponding to each picture to determine a training database; training, based on Horovod framework and FATE federated learning framework, each federated learning unit according to the training database and the detection model for the typical object, and determining the trained UAV network according to the trained federated learning unit; and determining, by the trained UAV network, the typical object in each picture. A congestion of communication links is avoided, thereby improving detection efficiency.

Method and system for detecting typical object of transmission line based on unmanned aerial vehicle (UAV) federated learning

The application provides an estimation method of detecting elevation by a semi-airborne electromagnetic method, including the following steps: S1, judging original elevation data to obtain wrong point data and normal data; S2, filtering the wrong point data by an improved Kalman filtering method, and filtering the normal data by a conventional Kalman filtering method; S3, fusing a filtering result of the wrong point data and a filtering result of the normal data, and taking a fused result as a measured value sequence used in a next working process; and S4, repeating the S1-S3 until the fused result meets preset requirements.

Estimation method of detecting elevation by semi-airborne electromagnetic method

A method executable by an autonomous mobile device includes moving in a work environment, obtaining environmental data acquired by a sensing device, and determining whether the sensing device is in a suspected ineffective state based on the environmental data. The method also includes based on a determination that the sensing device is in the suspected ineffective state, rotating at a same location for a first predetermined spin angle. The method also includes obtaining an estimated rotation angle based on one or more motion parameters acquired by a dead reckoning sensor, comparing the estimated rotation angle with the first predetermined spin angle, and based on a determination that a difference between the estimated rotation angle and the first predetermined spin angle is greater than a first predetermined threshold value, executing escape instructions to move backwardly for a first predetermined distance and move along a curve or a folded line.

Method and apparatus for autonomous mobile device

An etching method for selectively etching a silicon oxide film on a wafer surface that includes the silicon oxide film and a silicon nitride film includes: a surface layer removal process including: etching the silicon oxide film at a first etching rate and removing a surface modification layer covering on the silicon nitride film; and an etching process including: etching the silicon oxide film at a second etching rate. The first etching rate is smaller than the second etching rate.

Etching method, air-gap dielectric layer, and dynamic random-access memory

Embodiments of the present disclosure provide a reaction gas supply system and a control method. The reaction gas supply system includes a plurality of precursor containers and a plurality of supply regulator devices. The precursor container is connected to at least one of the reaction chambers. The plurality of precursor containers include at least a pair of precursor containers of an arbitrary combination. A supply regulator device is arranged between each pair of precursor containers. The supply regulator device is configured to connect the corresponding pair of precursor containers. With the reaction gas supply system and the control method of the present disclosure, the reaction gas may be ensured to be supplied stably, the utilization rate of the precursor may be increased, and the production efficiency and the product quality may be increased.

Reaction gas supply system and control method thereof

Display screen or portion thereof with a graphical user interface

Display screen or portion thereof with graphical user interface

A method and system for electromagnetic method (EM) signal detection based on an onshore sparker source, the method including: arranging an EM signal detection system near a sparker source; releasing, by the sparker source, an electromagnetic pulse concomitantly in a discharge and mechanical energy output process; observing an electromagnetic response generated by the earth under the excitation of the electromagnetic pulse by means of the EM signal detection system for extracting distribution information of geo-electrical parameters; when the sparker source moves, moving the electromagnetic method signal detection system to a new position along with the sparker source while keeping their positions relative to each other unchanged; and repeating the above process after the movement is completed. According to the technical solution of the present invention, fine electromagnetic detection results can be obtained while seismic detection is carried out.

Method and system for electromagnetic method (EM) signal detection based on onshore sparker source

Growing community of inventors

Beijing, China

Xin Wu