Ocean's King Lighting Science and Technology Co., Ltd.

Huawei Technologies Co., Limited

China Communication Technology Co., Ltd.

Shenzhen Ocean's King Lighting Engineering Co., Ltd.

Peking University

Shenzhen Institute of Terahertz Technology and Innovation

Shenzhen Cct Thz Technology Co., Ltd.

Zte Corporation

Honor Device Co., Ltd.

Huazhong University of Science and Technology

Universtar Science & Technology (shenzhen) Co., Ltd.

Ocean's King Lighting Science & Technology Do., Ltd.

Byd Auto Industry Company Limited

Rong Wang

Mingjie Zhou

Guitang Chen

Chunchao Qi

Wenbo Ma

Zhefeng Yan

Shukai Zhao

Chaopu Shi

Wen Gao

Ge Li

Guangsheng Wu

Qing Ding

Hanjiang Chen

Xiuli Zheng

Bailin Wen

Xiongwei Huang

Zhihui Feng

Xiaoxiang Hou

Yi Ting Shao

Wenmin Ge

Tie Jun Huang

Yan Chen

Hanyang Wang

Jun Liu

Tao Yang

Qi Zhang

Qiang Guo

Wei Mao

Chao Sun

Chien-ming Lee

Huan Liu

Huiliang Xu

Bing Liu

Chunfeng Yao

Weihua Li

Linjun Lv

Yuhong Zhu

Bingguang Peng

Jianfei Li

Yanli Liu

Guanjun Ni

Jiakuan Yang

Mengde Wang

Jingjing Yao

Wei An

Yuchan Yang

Yuanzhe Xuan

Shu He

Changjun Zhao

Zichen Xie

Hong Lian Wei

Changzhu Yang

Yafei Shi

Yalin Li

Shangbang Sun

Jingsong Fu

An aluminum alloy and applications thereof are disclosed. Based on the total weight of the aluminum alloy, the aluminum alloy includes: 8-11% of Si, 2-4% of Cu, 0.6-4% of Zn, 0.65-1.1% of Mn, 0.35-0.65% of Mg, 0.001-0.05% of Cr, 0.01-0.03% of Sr, 0.08-0.12% of Ti, 0.008-0.02% of B, 0.1-0.3% of Fe, 0.01-0.02% of Ga, 0.008-0.015% of Sn, and the balance of Al and less than 0.1% of other elements.

Aluminum alloy and application thereof

A polar code segment encoding method and a related apparatus are disclosed, and the method includes: determining, based on an information bit quantity of a first information bit sequence and a first code rate, a target code length for polar code encoding; determining an initial code length based on the target code length, where the initial code length is an integer multiple of a smallest segment code length; dividing the first information bit sequence into S segments of information bit sequences based on the first code rate and the initial code length and when the initial code length is different from the target code length, performing rate matching on the S segments in a process of performing polar code encoding on the S segments of information bit sequences, where a sum of segment code lengths of the S segments is the target code length after the rate matching.

Polar code segment encoding method and related apparatus

The present invention provides an electronic device. The electronic device includes a mainboard, a metal frame, a display module, and a shield structure. The mainboard includes a radio frequency circuit. The metal frame is coupled to the radio frequency circuit, and configured to receive or transmit a radio frequency signal. The shield structure is located in the display module or on a side of the display module closer to the mainboard, and is connected to the display module. The shield structure includes a metal shield layer. The metal shield layer is insulated from the metal frame and the radio frequency circuit, and the metal shield layer can generate reflection between the metal frame and the display module, weaken field strength generated in the display module by radiated energy from the metal frame, and shield the energy radiated from the metal frame to the display module.

Electronic device

A portable security inspection device based on millimetre wave imaging comprising a hand-held body, wherein the hand-held body is provided with a millimetre-wave transmitting circuit for generating a millimetre-wave transmitting signal, a millimetre-wave array antenna for transmitting the millimetre-wave transmitting signal to a detected object and for receiving an echo signal reflected by the detected object, and a millimetre-wave receiving circuit for processing the echo signal and converting the echo signal into image data of the detected object.

Portable security inspection device based on millimetre wave imaging

An electrically scanned array antenna device applied to a millimeter wave imaging system is provided. The electrically scanned array antenna device comprises an adjustable light source for outputting an optical signal with an adjustable wavelength; an electro-optical modulation module; an optocouple; a time delay module for performing optical delay of different duration on each modulated signal, and correspondingly changing the duration of the optical delay according to the wavelength of the optical signal to obtain modulated signals of different phases; an optical detector; and an array antenna. The millimeter wave is loaded on the optical signal with an adjustable wavelength to obtain a modulated signal; the modulated signal is divided into multiple signals; time delay of different duration is performed on each signal; and millimeter wave signals of different phases are obtained after demodulation and are simultaneously transmitted to scan an object to be measured.

Electronically scanned array antenna device for use in millimeter wave imaging system

The present disclosure relates to a monitoring method, a monitoring system and a control device for a human-body security-inspection device. The monitoring method includes: collecting operation parameters of preset monitoring points in target circuit modules of the human-body security-inspection device; obtaining parameter ranges according to module identifiers of the target circuit modules and monitoring-point identifiers of the preset monitoring points, wherein the parameter ranges are associated with the module identifiers and the monitoring-point identifiers respectively; determining whether the operation parameters are in the parameter ranges respectively, and then determining location information of a fault point according to the module identifiers and the monitoring-point identifiers if any of the operation parameters is not in a corresponding parameter range. Therefore, the present disclosure can quickly locate the position of the fault point, thus it is convenient in the maintenance and test work, and improve the efficiency of the maintenance and test work.

Monitoring method, monitoring system and control device for human-body security-inspection device

Disclosed is a hierarchical division-based point cloud attribute compression method. For point cloud attribute information, a new hierarchical division based coding scheme is proposed, wherein a frame of point cloud is adaptively divided into a 'stripe-macroblock-block' hierarchical structure according to the spatial position and color distribution of the point cloud, and stripes are coded independently from one another, increasing the coding efficiency, enhancing the fault tolerance of a system and improving the performance of point cloud attribute compression. The method comprises: (1) inputting a point cloud; (2) division of a k-dimension (KD) tree structure of the point cloud; (3) continuity analysis of point cloud attribute information; (4) stripe division of the point cloud; (5) division of macroblocks and coding blocks of the point cloud; and (6) intra-frame prediction, transformation, quantification and entropy coding based on a block structure.

Hierarchical division-based point cloud attribute compression method

Disclosed is a multi-angle adaptive intra-frame prediction-based point cloud attribute compression method. A novel block structure-based intra-frame prediction scheme is provided for point cloud attribute information, where six prediction modes are provided to reduce information redundancy among different coding blocks and improve the point cloud attribute compression performance. The method comprises: (1) inputting a point cloud; (2) performing point cloud attribute color space conversion; (3) dividing a point cloud by using a K-dimensional (KD) tree to obtain coding blocks; (4) performing block structure-based multi-angle adaptive intra-frame prediction; (5) performing intra-frame prediction mode decision; and (6) performing conversion, uniform quantization, and entropy encoding.

Multi-angle adaptive intra-frame prediction-based point cloud attribute compression method

A network communication method and a network communications apparatus where the method is applied to an over-the-air network system, and the over-the-air network system includes a service processing device and a level-1 over-the-air network node. The method includes generating, by the service processing device, a collection instruction, where the collection instruction includes a preset collection rule, the preset collection rule is used to instruct the level-1 over-the-air network node to collect, according to the preset collection rule, service data reported by a terminal in a target area, and the target area is an area covered by the level-1 over-the-air network node; sending, by the service processing device, the collection instruction to the level-1 over-the-air network node; and collecting, by the level-1 over-the-air network node according to the preset collection rule in the collection instruction, the service data reported by the terminal in the target area.

Network communication method and network communications apparatus

A security check instrument motion control system includes an FPGA control chip that receives motion instructions, comprising angle, direction, speed and the like, from an upper computer via an upper computer communication module, realizes quick control to a rotation motion module, and controls a motion state of the rotation motion module according to real-time motion information of the rotation motion module detected by a positioning detection module. The motion state includes a motion stop state and a normal rotation state. The FPGA control chip detects the working state of each module in the security check instrument motion control system in real time, and once the security check instrument motion control system has a fault, each module can be subjected to debugging, repairing and maintenance respectively. If the positioning detection module detects that the rotation motion module is abnormal, the FPGA control chip controls the rotation motion module to stop moving.

Security check instrument motion control system

The present disclosure relates to a scanning apparatus and a security-inspection device with the same. The scanning apparatus include: at least one millimeter-wave transreceiving antenna module, wherein the millimeter-wave transreceiving antenna module include a plurality of millimeter-wave transreceiving antenna units each having a signal terminal facing the predetermined scanning area, and a dustproof film covering the signal terminal of each of the millimeter-wave transreceiving antenna units. The scanning mechanism is simple in structure, more convenient for maintenance, and has a lower cost. When each millimeter-wave transceiving antenna unit emits and receives millimeter waves, the millimeter waves pass through the dustproof film without passing through the organic glass, and the attenuation of the millimeter wave signal is small, thereby improving the 3D imaging effect of the security-inspection device.

Scanning apparatus and security-inspection device with the same

Provided are a congestion control method, device and system. The congestion control method includes: receiving, by a source device, through a first port a local anti-congestion response message sent from a sink device, wherein the local anti-congestion response message is sent after the sink device determines that the length of data cached in a port sending queue for a second port of the sink device corresponding to the first port exceeds a threshold; and suspending, by the source device, sending of a data packet which needs to be sent to the second port through the first port. Hop-by-hop congestion control for the data packets of nodes in a content centric networking (CNN) is timely and accurately realized.

Congestion method, device and system

Embodiments disclose a method for acquiring, by a switch deployed in a software defined network (SDN), an exact flow entry, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller being configured to communicate with each SDN switch in an inband communication manner. The method includes establishing, by a first SDN switch, a reliable connection to the SDN controller, and sending a first control message based on a packet corresponding to a protocol for the reliable connection. Path information of the first SDN switch is added to the control message. Each SDN switch that receives the first control message adds path information of each SDN switch to the first control message, so that the SDN controller is provided with an entire path, so as to deliver a flow table to the first SDN switch.

Method for acquiring, by SDN switch, exact flow entry, and SDN switch, controller, and system

A topology structure discovery method and device. The topology structure discovery method includes: a controller acquiring topology structures among N routers; according to the topology structures, the controller obtaining routing tables respectively corresponding to each router, and respectively sending corresponding routing tables to each router, wherein the routing tables comprise at least one kind of routing information between the router and other N&#x2212;1 routers and routing information between the router and the controller, so that the controller can obtain the topology structures of the whole network and calculate the router capable of obtaining the optimal path according to the topology structures of the whole network, thereby improving the utilization efficiency and the throughput of the network.

Topology structure discovery method and device

Provided is a sludge drying composite conditioner. The sludge drying composite conditioner comprises a Fenton's reagent or/and Fenton-like reagent and a matrix construct, the weight ratio between the Fenton's reagent or/and the Fenton-like reagent and the matrix construct is 1:0.05 to 300, and the matrix construct is powder. Further provided is an application method of the sludge drying composite conditioner, which comprises the steps of: adding a Fenton's reagent or/and Fenton-like reagent in a sludge, performing stirring and mixing, and performing an oxidation reaction; and adding a matrix construct to the sludge added with the Fenton's reagent or/and Fenton-like reagent and performing stirring and mixing. For the sludge drying composite conditioner, through the coordinated effect of the Fenton's reagent or/and Fenton-like reagent and the powder matrix construct, the extracellular polymeric substances in the sludge are effectively damaged, the compressibility of organic matter is reduced, and the drying performance of sludge is improved. The application method thereof has a simple working process and easily controllable conditions and reduces the drying time for sludge, thereby achieving large-scale treatment of sludge.

Sludge drying composite conditioner and application method thereof

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Shenzhen, China

Rong Wang