Huawei Technologies Co., Limited

Nanjing Chervon Industry Co., Ltd.

Tencent Technology (shenzhen) Company Limited

Chinese Academy of Sciences

Nanjing Sac Power Grid Automation Co., Ltd

Dong Yang

Dezhong Yang

Qiang Wang

Wei Fang

Tianxiao Xu

Huaishu Wang

Zhijun Dong

Hongbin Wu

Fengwei Tian

Facan Feng

Guiwu Hu

Qian Wang

Hui Liu

Cheng Chen

Tao Yu

Junya Duan

Yuan Wang

Guangyu Sun

Qikun Wei

Xiaoyu Liu

Xiongshu Yi

Wenyan Li

Xiaochun Cui

Congbing Li

Xiaofei Bai

Muyong Cao

Chen Jun Yang

Can Zheng

Jin Xu

Rongxin Zhou

Sunjie Wang

Dong Chen

Rong Yan

Jun Xian Guo

Zhaotao Zhang

Haiyang He

Jun Zhan

Xuefei Fang

Zhongcao Hu

Jianbo Ma

Jianli Du

Peng Yin

Zhou Zhou

Zhibin Cao

Kejun Liu

Bing Hu

Shao Gang Tang

Fufeng Chen

Yuping Li

Mingjun Xue

Changtai Li

Yinian Qi

Yuwen Liang

Henghui Song

Jinsong Wang

Zhi Jun Dong

Disclosed are a single-phase-to-ground protection method and system for an active power distribution network. The method includes: acquiring current and voltage data of a line in real time by means of a power distribution terminal, and calculating active power of the line; recording and storing the active power of the line to form an active power curve; performing data statistics according to the active power curve; calculating a direction compensation coefficient and a zero-sequence current compensation coefficient on the basis of statistical data; and detecting whether a single-phase-to-ground fault occurs to the line, where when the single-phase-to-ground fault occurs to the line, a transient-state zero-sequence direction and a steady-state zero-sequence direction are compensated, or a zero-sequence current is compensated, it is determined that the single-phase-to-ground fault occurs to the line when compensation results satisfy action conditions, and tripping is performed or an alarm is given.

Single-phase-to-ground protection method and system for active power distribution network

An obstacle recognition method and apparatus, and a related device are provided. The method includes: obtaining an actual path loss value between a first AP and a second AP, path loss value pairs between a terminal and a plurality of AP pairs, and path loss values of the plurality of AP pairs; obtaining, based on the path loss value pairs between the terminal and the plurality of AP pairs, an AP pair similar to an AP pair formed by the first AP and the second AP; obtaining a second path loss value between the first AP and the second AP based on a path loss value of the similar AP pair; and comparing the second path loss value between the first AP and the second AP with the actual path loss value, to determine whether an obstacle exists between the first AP and the second AP.

Obstacle recognition method and related device

In a search and tracking method for full time-domain laser detection of space debris, a set of latest precision orbital parameters of a debris object and start and end moments of a current transit of the object are first obtained. Search-specific guidance data is generated based on the above information and in combination with estimation of a maximum along-track error of the orbital parameters of the object during the current transit. A DLR system performs multi-elevation search on the object based on the search-specific guidance data, obtains a plurality of pieces of detection data of the object after detecting the object during the search, determines an along-track error of the orbital parameters of the object based on the detection data, and corrects the orbital parameters of the object in real time based on the along-track error, so as to guide the DLR system to subsequently track and detect the object.

Search and tracking method for full time-domain laser detection of space debris, storage medium, and electronic device

A battery pack includes a plurality of cells, a first detection unit configured to detect a first electrical parameter of a cell, a second detection unit configured to detect a second electrical parameter of a cell group, a storage unit at least configured to store a third electrical parameter of the cell, and a control unit configured to acquire the first electrical parameter, the second electrical parameter, and the third electrical parameter, dynamically adjust a discharge capacity parameter of the battery pack based on the third electrical parameter, the first electrical parameter, and the second electrical parameter, and transmit the discharge capacity parameter to a load connected to the battery pack to enable the load to adjust the current operating state based on the discharge capacity parameter.

Battery pack and power supply apparatus

Embodiments of this disclosure provide a speech enhancement method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: obtaining a clean speech sample; decomposing the clean speech sample to obtain a first sparse matrix and m base matrices, values in the first sparse matrix being all positive numbers, and m being a positive integer greater than 1; obtaining, according to the first sparse matrix and a weight matrix of a target neural network, state vectors of neurons in a visible layer of the target neural network; and updating the weight matrix according to the state vectors of the neurons in the visible layer and the clean speech sample, to obtain a deep dictionary used for speech enhancement.

Speech enhancement method and apparatus, electronic device, and computer-readable storage medium

A battery pack includes a housing of a first material, a cell assembly, and a cell support of a second material. The cell assembly is disposed in the housing and includes a plurality of cell units. The cell unit includes a positive electrode of the cell unit and a negative electrode of the cell unit. The cell support is configured to support at least the cell assembly. The cell support is at least disposed at two ends of the cell assembly and at least part of the cell support encapsulates the positive electrode of the cell unit and the negative electrode of the cell unit. The first material is different from the second material.

Battery pack, power tool system, and charging system

An information processing method, a server, and a computer storage medium are provided. The method includes: generating a first information identification code according to first information, the first information representing an information source; providing the first information identification code to a terminal; receiving a first request from the terminal and allowing a terminal user of the terminal to follow an information service, the first request carrying the first information; and recording the first information and tracking and obtaining conversion information of the information source according to the first information.

Information processing method, server, and computer storage medium

Embodiments of the present disclosure disclose a method and an apparatus for protecting a subscriber access network, and relate to the field of communications. The method includes: connecting a Broadband Network Gateway BNG device and N predetermined Digital Subscriber Line Access Multiplexers DSLAMs to an aggregation device AGG; allocating an active BNG interface for each of the N DSLAMs, allocating a standby BNG interface set for the N DSLAMs to obtain a backup relationship, and sending the backup relationship to the AGG (); and backing up subscriber data on the DSLAMs to the standby BNG interface set, so that when an active BNG interface fails, the AGG switches subscribers on a DSLAM served by the failed active BNG interface to a standby BNG interface in the standby BNG interface set.

Method and apparatus for protecting subscriber access network

The present invention provides a connector interface comprising a connector socket interface and a connector plug interface, the connector socket interface comprising metal shell, insulator, band-shaped recess provided on said insulator and metal contacts and the connector plug interface comprising metal shell, insulator, and band-shaped protrusion provided on said insulator and metal contacts, said connector socket interface and said connector plug interface being able to be coupled together, wherein: said connector socket interface has a plurality of band-shaped recesses and said connector plug interface has a plurality of band-shaped protrusions. In a connector interface with the same number of metal pieces according to an embodiment of the present invention, the footprint of the coupling part is reduced, the footprint per pair of contacts is reduced, and the objective of increasing the pin density of the contacts in a connector is achieved.

Connector interface

The present invention relates to a high density connector plug, comprising the body of plug and a plastic enclosure for fixing said body of plug and being connected with the cable. Said body of plug comprises a shielding shell, an insulator mounted in said shielding shell, and a set of contacts provided on the side of said insulator; said insulator comprising a base and upper plastic body and lower plastic body extending outwards from one side of said base, which have slots for mounting said contacts. Thus the interface footprint of plug and socket is reduced and the pin density is increased, thereby the volume of the corresponding device is significantly reduced, so that the devices have a trend towards miniature and high density. In addition, there is a stepped welding area provided on the insulator, so that the contacts can be connected to the cable by welding, and there is visibility in the cable welding, thereby the working efficiency is improved.

Electrical connector

Growing community of inventors

Nanjing, China

Dong Yang