Samsung Electronics Co., Ltd.

Beihang University

China Academy of Railway Sciences Corporation Limited

Beijing Huatie Information Technology Corporation Ltd.

Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Ltd.

Beijing Ruichi Guotie Its Eng. & Tech. Ltd.

Qiang Gao

Jun Zhang

Fei Wang

Hui Zhang

Gang Li

Lin Wang

Ying Huang

Yong Yang

Gang Zhao

Hua Zhang

Yuan Ma

Ran Zhao

Jiali Zhao

Shi Yan

Hao Chang

Jang-su Lee

Zhenzhen Liu

Weijie Xiao

Hong Li Ge

Youguang Zhang

Yingying Cui

Huayong Xu

Qichang Li

Zhiduo Xie

Zhenhua Qu

Qizheng Hu

Man Zhong

Xinxue Zhao

Ge Zhu

Younguang Zhang

Deji Fu

Jinlong Zhu

Bingyue Lin

Chaoping Zhu

Hongbo Wan

Xianfeng Luan

Yazhou Kou

Lun Wang

Zibiao Fu

The invention discloses a blockchain-based intrusion detection system for railway signal, which is built on a blockchain's distributed chain structure, without a central, trusted control center. This design mitigates the vulnerabilities associated with centralized intrusion detection centers. Additionally, by utilizing a blockchain-based distributed structure, it also eliminates the risk of a single point of failure for the intrusion detection center. Moreover, the data within the blockchain-based intrusion detection system is highly resistant to malicious tampering. This is achieved by leveraging the consensus mechanism inherent in the blockchain, which can achieve consensus among intrusion detection nodes. The current invention solves the internal evil attacks and avoid the inability to reach consensus between nodes due to internal evil, thereby affecting the intrusion detection performance; at the same time, the intrusion detection model can resist external network attacks.

Blockchain-based intrusion detection system for railway signals

Provided are a method and an apparatus for providing various information based on a web page with improved space utilization of the web page. The information providing apparatus may include a processor configured to detect at least one blank area included in a web page, detect target data having a size matching size information regarding the at least one blank area, and push the target data to the at least one blank area by using position information regarding the at least one blank area, thereby displaying the web page and the target data together.

Method and apparatus for providing information based on webpage

A method, apparatus and/or system of selecting a routing in an asymmetric link, in which an arbitrary intermediate node of the at least one intermediate node receives routing request information including a first link quality for a path from the source node to the arbitrary neighbor node from an arbitrary neighbor node of the arbitrary intermediate node, acquires a second link quality for a path between the arbitrary intermediate node and the arbitrary neighbor node, acquires a third link quality based on the first and second link qualities, updates the first link quality in the routing request information with the third link quality, and broadcasts an updated routing request information to other neighbor node for the destination node to determine at least one of a desirable forward path or a desirable backward path from the source node to the destination node, may be provided.

Method, apparatus and system of selecting routing in asymmetric link

Provided is a method of displaying and controlling a plurality of sub-screens on a display apparatus. A plurality of sub-screens of a preset number are displayed on a screen of the display apparatus, and the sub-screens are respectively bound to different input devices, and a control instruction sent from the input devices to the display apparatus independently controls only a sub-screen bound to a particular input device, and does not affect other sub-screens that are not bound to the particular input device. A user of a display may use various services at the same time via the plurality of independent sub-screens displayed on the screen of the display apparatus, and a plurality of users may share a large screen of the display apparatus and view respectively desired content at the same time.

Method for controlling multiple subscreens on display device and display device therefor

The present invention provides a channel estimation method for a MIMO (Multiple-Input Multiple-Output) antenna system comprising two transmit antennas and two receive antennas. The method performs a preliminary estimation on a channel, and then calculates to obtain a calculated value for the transmitted signal by using the estimated channel value. The calculated value for the transmitted signal is reconstructed, the reconstructed calculated value is used as the transmitted signal, and the channel value is estimated for a second time. The iteration is performed in this manner for n times, leading to a more accurate channel value. The method of the invention has a high efficiency, and the channel value is accurately estimated.

Channel estimation method

The present invention discloses a MIMO communication system signal detection method applied to a MIMO (Multiple Input Multiple Output) system with m transmitting antennas and n receiving antennas. The method comprises the following steps: acquiring the channel (from m transmitting antennas to n receiving antennas) matrix H by using a channel estimation algorithm; calculating a transmitted signal preliminary estimation vector [{circumflex over (x)}, {circumflex over (x)}, . . . , {circumflex over (x)}]; dividing said m transmitting antennas into groups; obtaining at least one possible transmitted signal vectors for each group of transmitted signals by using signal detection technique; and finally obtaining possible transmitted signal vectors for all groups of transmitting antennas, combining each group of possible transmitted signal vectors into a m-dimensional possible transmitted signal vector in a logic relationship of tree structure, and forming a set of transmitted signal candidate vectors S from said m-dimensional possible transmitted signal vectors; obtaining a ML solution from said set of transmitted signal candidate vectors S with a ML detection algorithm.

MIMO communication system signal detection method

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Beijing, China

Qiang Gao