Guangdong University of Technology

Comba Network Systems Company Limited

Huawei Device Co., Ltd.

Jrd Communication (Shenzhen) Ltd.

Guangzhou Automobile Group Co., Ltd.

Shenzhen Alilo Smart Technology Co., Ltd

Shenzhen Qianhai Yindun Energy Saving Envr. Prot.

Shenzhen Booyue Daily Necessities Company Limited

Xin Li

Jinqing Zhou

Manjiang Luo

Quan Lai

Shaohu Fang

Ze Yuan

Meng Li

Yu Zheng

Shengli Xie

Kan Xie

Liang Zhu

Victor Fedorovich Kuzin

Zhenni Li

Kungan Zeng

Wenyin Liu

Zhixin Zeng

Yu Hua Chu

Qixiang Zhang

Jiahong Wu

Xiazhi Ge

Jianhao Tang

Zhiheng Shen

Hung Yueh Lo

Qingsong Yu

Qianming Wang

Jialong Zhang

Zhongshan Li

Shuai Fan

Yongcheng Zhu

The present disclosure provides a method for acquiring a network topology and an indoor distribution system. The method comprises: a host unit receives position information transmitted by each extended unit connected to the host unit, and determines a network topology structure according to the position information. In this way, the labor cost can be reduced. In addition, the network topology structure obtained by the method provided by the present disclosure has higher accuracy, so that position information of each node can be learnt at a host unit, the fault can be quickly located, and the system operation and maintenance cost is reduced.

Method for acquiring network topology and indoor distribution system

Portable sound machine

The present disclosure relates to a distributed antenna system and a signal transmission method. A first remote cascaded chain corresponding to a first channel set and a second remote cascaded chain corresponding to a second channel set are obtained by means of division, such that when a distributed antenna system needs to support multi-channel MIMO, remote units in the first remote cascaded chain and remote units in the second remote cascaded chain only need to be configured with communication link modules, the number of which is less than the number of channels, and the multi-channel MIMO is jointly supported by using the remote units in the first remote cascaded chain and the remote units in the second remote cascaded chain, such that the multi-channel MIMO capability of an overlapping region can be realized.

Distributed antenna system and signal transmission method

Disclosed is a high-precision BeiDou satellite positioning method and system for a complex urban environment. The method includes the following steps: acquiring measurement data; solving the measurement data based on Kalman filtering before predicting to obtain an initial positioning result; performing graph-based data modeling based on the measurement data to obtain a sky satellite graph; and performing feature extraction on the sky satellite graph based on a Transformer model with a graph-structure perception module, and outputting a position correction value. By using the present disclosure, the positioning accuracy and generalization performance of a positioning model in complex scenarios can be improved. The present disclosure is widely applicable in the field of satellite positioning.

High-precision beidou satellite positioning method and system for complex urban environment

Early educational talking pen

There are provided a network identity authentication method, a network identity authentication system, a user agent device used in the network identity authentication method and the network identity authentication system, and a computer-readable storage medium. The network identity authentication method includes: acquiring, by a user agent, identity information and a registration rule of a target website via a network terminal; acquiring registration information for the target website based on the identity information or generating registration information for the target website according to the registration rule; transmitting the identity information and the registration information to a server agent and sending, by the server agent based on the identity information and the registration information, an authentication request to a website server to complete an authentication process.

Network identity authentication method and system, and user agent device used thereby

An electrolytic reactor of an oxyhydrogen machine includes a main body with an internal chamber for accommodating a liquid, a carrier installed to the chamber for arranging even numbered electrode plates which are spaced from each other and two adjacent electrode plates having different polarities, a multiple of partitions extending to an appropriate length from the top surface to the bottom surface of the main body and spaced from each other, a communicating channel formed by each electrode plate and the main body and disposed between the bottom surface of the main body and each electrode plate, a liquid storage portion formed by the space between the partitions and the chamber and communicated to the communicating channel and a gas extraction unit installed on the main body and having independent first and second gas collection chambers for collecting hydrogen and oxygen respectively.

Electrolytic reactor of oxyhydrogen machine

Provided is a method for controlling a water temperature of an engine. The method includes: collecting outlet water temperatures of the engine at predetermined time intervals (S); when a number of the collected outlet water temperatures of the engine is greater than or equal to a predetermined number, determining a water temperature variation function of the outlet water temperatures of the engine with time according to collected each outlet water temperature of the engine and collection time corresponding to the each outlet water temperature of the engine (S); and determining performance parameters of a cooling system under the water temperature variation function, and controlling controllable parts of the cooling system according to the performance parameters of the cooling system (S). Further provided is an apparatus for controlling the water temperature of the engine.

Method and apparatus for controlling water temperature of engine

An environment information storage and playback method, a storage and playback system, and a storage and playback terminal are disclosed. The storage and playback method may include: acquiring current position data and time data (S); collecting current environment data (S); establishing a first association between the environment data and the position data, and establishing a second association between the environment data and the time data (S); storing the position data, the time data, the environment data, the first association, and the second association (S). The present storage and playback method could store the current environment data based on position and time.

Environment information storage and playback method, storage and playback system and terminal

Digital player

Mobile phone

Growing community of inventors

Guangdong, China

Xin Li