Huazhong University of Science and Technology

Autochips Wuhan Co., Ltd.

Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Wuhan University

Fiberhome Telecommunication Technologies Co., Ltd

Wuhan Institute of Technology

Changjiang Survey Planning Design and Research Co., Ltd.

Shenzhen Yidian Zhuoyue Technology Co.

Ruiguang Telecommunication Technologies Co., Ltd

Fiberhome Fujikura Optic Technology Co., Ltd

Tao Zhang

Tianxu Zhang

Cheng Yang

Jiawei Wang

Wenyong Luo

Cheng Du

Chao Chen

Xiangshui Miao

Yi Bu Li

Wei Chen

Fei Yu

Wei Li

Qinghui Zhang

Jiandong Tan

Yili Ke

Gaozhen Wang

Xin Zhao

Qigui Yang

Feng Li

Shiyu Li

Lijun Su

Xinqiang Niu

Qi Mo

Dezhi Weng

Yaxiong Zhou

Xuehong Yang

Xia Hua

Ming Kong

Qiong Lei

Zhijian Liu

Qun Liu

Rong Dan

Zhiqiang Yu

Huang Yu

Senlin Li

Jie Zhang

Jingui Zou

Yuhai Lv

Guoqiang Zhang

Kun Du

Tianpeng Miao

Shiyu Xie

Yi Su

Fuzhen Ding

Shudong Wang

Lifeng Liu

Lei Yan

Wei Qi

Baoping Chen

Shuai Shao

Fanqiu Zeng

Qiao Zhu

Shujian Wu

Bi Wang

Zisen Zhao

A radar includes antennas, a receiving system, a transmitting system, and a short orbit. The short orbit is provided with a receiving system capable of reciprocating motion thereon; or, the short orbit is provided with a transmitting system capable of reciprocating motion thereon; or, the short orbit is provided with both a receiving system and a transmitting system capable of reciprocating motion thereon.

Radar and method for target detection using radar

Disclosed are an underwater ferromagnetic target detection method and system employing multiple power frequency radiation sources, pertaining to the technical field of non-acoustic underwater detection. The method includes: a power transmission network generating a power frequency electromagnetic field in a spatial range, and an underwater ferromagnetic target generating an electromagnetic field under the combined action of the power frequency electromagnetic field and seawater inside and outside the underwater ferromagnetic target; if there are multiple ships on the water serving as secondary radiation sources acting on the underwater ferromagnetic target, obtaining a secondary magnetic field generated by the underwater ferromagnetic target, and adding the secondary magnetic field and the electromagnetic field generated by the underwater ferromagnetic target under the combined action of the power frequency electromagnetic field and the seawater inside and outside the underwater ferromagnetic target to obtain a total electromagnetic field generated by the underwater ferromagnetic target; and acquiring a power frequency electromagnetic field distribution around the underwater ferromagnetic target, and performing underwater ferromagnetic target detection according to the power frequency electromagnetic field distribution. The present invention can enhance power frequency electromagnetic field signals of an underwater ferromagnetic target, and achieves underwater ferromagnetic target detection.

Underwater ferromagnetic target detection method and system employing multiple power frequency radiation sources

A method for front-end filtering frequency selection for a communication receiver is provided. The method includes: disposing a reference oscillator working at a preset frequency associated with a frequency to be received by the communication receiver, where the preset frequency and the frequency to be received can be accurately converted and expressed by a formula; and transmitting the frequency to be received to a front-end filtering frequency selector to realize accurate tuning. The frequency of the front-end filtering frequency selector is a required tuning frequency based on the device parameter relationship between the reference oscillator and the front-end filtering frequency selector.

Method and device for front-end filtering frequency selection for communication receiver

A sequence time window amplitude-phase-frequency characteristics analysis method and system for underwater vehicle power frequency electromagnetic field disturbance are provided. The method includes: establishing a power grid dipole group model, emulating and calculating to obtain background field intensity data of a test location, and constructing an emulated background field database; acquiring measured background field data, comparing the emulated data with the measured data, and providing a relative error; calculating a background field intensity and underwater vehicle target disturbance under the action of the above dipole group, and establishing a measured target signal database; and performing actual measurement according to an underwater vehicle motion and detection topology, performing a Fourier transform and Fourier sliding window decomposition after acquiring original data, and acquiring an amplitude spectrum and a spectrogram of an underwater vehicle target disturbance signal.

Sequence time window amplitude-phase-frequency characteristics analysis method for underwater vehicle power frequency electromagnetic field disturbance

The present disclosure provides a method for monitoring a motion status of a vehicle, a related chip, and a system. The method includes: obtaining N acceleration values in a first axial direction collected from N times sampling and a maximum acceleration change value within a preset time period; and obtaining N acceleration values in a second axial direction collected from N times sampling and a maximum acceleration change value within the preset time period; determining whether the vehicle is in motion or in a first stationary state based on the acceleration values in the first and second axial direction; and in response to the vehicle being in the first stationary state, further determining whether the vehicle is in motion or in a second stationary state based on the maximum acceleration change values in the first and second axial direction.

Method for monitoring motion status of vehicle and related chip, and system

The present disclosure provides a left and right wheel determination method, a wheel pressure monitoring chip and system, and related apparatuses. The left and right wheel determination method includes: obtaining a time duration for a wheel to rotate for a predetermined number of revolutions after the wheel being detected as rotating; sampling centrifugal acceleration and tangential acceleration of the wheel within the time duration; determining an overrun-lag relationship between the centrifugal acceleration and the tangential acceleration of the wheel based on a serial number of a sampling time-point corresponding to the centrifugal acceleration and a serial number of a sampling time-point corresponding to the tangential acceleration; and determining the wheel to be of a left wheel or a right wheel based on the overrun-lag relationship between the centrifugal acceleration and the tangential acceleration of the wheel.

Left and right wheel determination method, chip and system for monitoring wheel pressure

The present invention discloses an electromagnetic wave spatial analysis method based on multi-level dipole group modeling. The electromagnetic wave spatial analysis method includes the following steps: S, obtaining a magnetic dipole group according to three-phase loops of power grids of various different voltage levels, and obtaining spatial coordinates of the magnetic dipole group according to the longitudes and latitudes as well as the altitudes of the power grids of various voltage levels; S, calculating the loop length of each three-phase magnetic dipole according to the spatial coordinates of the magnetic dipole group, and obtaining a multi-level magnetic dipole group according to the loop lengths; S, obtaining the current corresponding to the voltage on power transmission loops in the power grids of various voltage levels at different levels according to the installed capacities of the power grids of various voltage levels in different countries; S, building a multi-level dipole model according to the multi-level magnetic dipole group and the current; and S, solving the multi-level dipole model to obtain spatial power frequency electromagnetic wave distribution. The altitude factor of grid distribution is added in the present invention, and the power grids are divided into multiple levels for modeling analysis respectively, thereby increasing the analytical accuracy of power frequency electromagnetic waves.

Electromagnetic wave spatial analysis method based on multi-level magnetic dipole group modeling

A method for sampling wheel acceleration, a method for determining rotation angular position of a wheel, and a tire pressure monitoring system are disclosed. The method for sampling wheel acceleration may include: acquiring a real-time wheel acceleration value of a target wheel and calculating a time length required to rotate for a preset number of revolutions of the target wheel according to a first association relationship between the wheel acceleration and the time length required to rotate for the preset number of revolutions of the target wheel; obtaining a time interval between any two adjacent sampling points according to the time length required to rotate for the preset number of revolutions; and sampling the wheel acceleration of the target wheel once every the time interval starting from any time.

Method for sampling wheel acceleration and determining rotation angular position of wheel, and tire pressure monitoring system

Nail clipper

A quantum dot display panel and a manufacturing method thereof are provided. The quantum dot display panel includes an array substrate; a luminescent layer disposed on the array substrate; an encapsulation layer disposed on the luminescent layer; and a color filter layer disposed on the encapsulation layer. The color filter layer includes a plurality of pixel areas. Each of the plurality of pixel areas includes a plurality of sub-pixel filter layers. Each of the sub-pixel filter layers is made of a quantum dot material. A color of a light excited by the quantum dot material is the same as a color of the sub-pixel filter layer. An upper surface of at least one of the sub-pixel filter layers forms a concave structure. The quantum dot display panel provided by the embodiment of the present disclosure enhances the light extraction rate and the display effect of the quantum dot display panel.

Quantum dot display panel and manufacturing method thereof

The present invention provides a flexible display panel, a flexible display device, and a manufacturing method of the flexible display panel. The flexible display panel is used as a protective cover of the flexible display device. The flexible display panel includes a flexible substrate, organic pixel units, a first inorganic layer, a spacer, an organic layer, and a second inorganic layer. The organic pixel units are disposed in an array on a side of the flexible substrate. The first inorganic layer covers a side of the organic pixel units away from the flexible substrate. The spacer is disposed on a side of the first inorganic layer away from the flexible substrate, wherein the spacer is provided with a plurality of through holes. The flexible display panel of the present invention not only has high flexibility and bendability but also has strong water and oxygen barrier capabilities.

Flexible display panel, flexible display device, and manufacturing method of flexible display panel

A method for preparing a doped optical fibre preform includes formulating, a rare earth material or a functional metal material and a co-doping agent into a doping solution, mixing a high-purity quartz powder with the doping solution, drying same at a temperature of 100&#xb0; C.-150&#xb0; C. for 12-48 hours, crushing and screening the same to obtain a doped quartz powder; depositing the doped quartz powder onto the surface of a target rod to form a doped core layer; replacing the doped quartz powder with the high-purity quartz powder, and depositing the high-purity quartz powder onto the surface of the doped core layer to form a quartz outer cladding; and removing the target rod, and gradually collapsing the entirety formed from the doped core layer and the quartz outer cladding at a high temperature to obtain the doped optical fibre preform.

Method for efficiently preparing doped optical fibre preform and doped optical fibre preform

Dash camera

A method for hoisting and transporting assemblies in an underground nuclear power plant, the method including: 1) pouring concrete onto a reactor cavern to form a rock anchor beam; hoisting a circular bridge crane to the reactor cavern through a hoist shaft on a top of the reactor cavern; mounting the circular bridge crane on the rock anchor beam by using a truck crane; 2) installing a containment cylinder and a track beam of a polar crane in the reactor cavern using the circular bridge crane; hoisting a gantry crane on one end of a polar crane girder and sending the polar crane girder to the reactor cavern; hoisting the other end of the polar crane girder using the circular bridge crane; allowing the polar crane girder to be horizontal; and mounting the polar crane girder on the track beam.

Method for hoisting and transporting assemblies in underground nuclear power plant

A processor including a computing and memory structure including X in number integration units and X in number communication units, and a control unit. The integration units are computing and memory units (CMUs), each computing and memory unit (CMU) is connected to a corresponding communication unit. The control unit is configured to produce control signals according to the commands, connect communication networks between the CMUs, choose operand addresses and result storage addresses, and search for one or a plurality of idle CMUs when extra CMUs are required for an operation. Each computing and memory unit includes M in number bit units and M&#x2212;1 in number vertical line switches. Each bit unit includes a resistor, a horizontal line switch and N in number memristors. X is a positive integer greater than or equal to 2; M is a positive integer greater than or equal to 1.

Memristor-based processor integrating computing and memory and method for using the processor

Growing community of inventors

Wuhan, China

Tao Zhang