Shanghai Autoflight Co., Ltd.

Haoxiang Electric Energy (kunshan) Co., Ltd.

Autoflight (kunshan) Co. Ltd.

Other

Yuneec Technology Co., Limited

Yuneec International (china) Co., Ltd

Yujet International Corporation Limited

Shandong Dingfeng Aviation Technology Co., Ltd.

Tongji University

Pinnacle Vista, LLC

Autoflightx International Limited

Shanghai Helang Electronics Co., Ltd.

Shanghai Yujet Co., Ltd.

Yu Tian

Wenyan Jiang

Yongqiang Cui

Hongduo Zhao

Jianming Ling

Hui Li

Ming Jia

Bing Yang

Ning Xie

Le Liu

Jiawen Liu

Jinyu Wu

Xindong Zhao

Mintao Bao

Jingfu Chen

Xue Zhang

Xin Zuo

Yuzhao Han

Yuzhe Jiang

The present disclosure provides a method and system for evaluating anti-skid performance of airport pavement based on spaceborne SAR. the method obtains an echo intensity plot by processing SAR images; Establish a FNN model using machine learning algorithms that input objective conditions, surface texture parameters, measured friction coefficients, and output SAR echo intensity; Finally, input the SAR images to be predicted and the assumed friction coefficient into the FNN model, to compare and predict the anti-skid performance. The present disclosure is based on the properties of SAR echoes and establishes a correlation between SAR echo intensity and pavement friction coefficient in both temporal and spatial dimensions, enabling uninterrupted remote sensing monitoring of regional anti-skid performance over a long period and large spatial distribution.

Method and system for evaluating anti-skid performance of airport pavement based on spaceborne SAR

Drone aircraft

Disclosed are a hydroxyl-terminated polybutadiene-based polyurethane (HTPB-PU)-modified asphalt and a preparation method thereof. In the disclosure, the HTPB-PU-modified asphalt includes the following components in parts by weight: 90 parts to 97 parts of a base asphalt and 3 parts to 10 parts of HTPB-PU, where the HTPB-PU is prepared from raw materials including an isocyanate and a polyol, and the polyol includes hydroxyl-terminated polybutadiene (HTPB) with a weight percentage of not less than 80%.

Hydroxyl-terminated polybutadiene-based polyurethane (HTPB-PU)-modified asphalt and preparation method thereof

A quick-release wing structure includes a lock cylinder assembly and a lock head. The lock cylinder assembly is installed in the fuselage. The lock cylinder assembly includes a shell and a lock plate. An installation slot is opened inside the shell. The side wall of the installation slot is provided with a clamping hole connected with the installation slot. The lock plate is sliding and arranged in the installation slot. The lock head is installed in the wing. A locking slot is set on the periphery of the lock head. The lock head can pass through the clamping hole and drive the lock plate to move. When the locking slot is facing the lock plate, the lock head is clamped onto the locking slot and fixed. The UAV includes the quick-release wing structure described above.

Quick-release wing structure and an unmanned aerial vehicle using the same

A motor-driven power board having a PCB and a plurality of transistors uniformly arranged along the edge of the PCB and a plurality of capacitors uniformly arranged along the inner side of the transistor. There is a plurality of terminals uniformly arranged along the inner side of the transistor. The board further includes a positive pole of power bus, a negative pole of power bus and a signal wire which are all located in the middle of the PCB. The invention improves the heat dissipation and current-sharing capacity of the power board by uniformly setting the power components from the inside to the outside according to the heat value while at the same time reduces the heat value in the middle of the power board, so that the motor of the driver using the power board can be assembled near the middle of the power board.

Motor-driven power board and a motor driver using the same

An aircraft motor driver having a power board and a motor, wherein the power board includes a base plate and a power element, and the power element is located at the edge of the base plate. The motor is located near the middle of the power board and is electrically connected to the terminal block on the base plate, and the motor driver is provided with an airflow circulation channel for providing the airflow used for heat dissipation of the power element. The aircraft motor driver arranges the power element on the outer edge of the power board, so that the motor of the driver can be assembled near the middle of the power board, reducing the assembly difficulty and assembly volume of the driver, and, so that the power board can be cooled by air cooling mode of air convection.

Aircraft motor driver

An unmanned aerial vehicle having a fuselage, a water collection and emission equipment, wings, linear reinforcements, a landing gear and a vertical fin. The water collection and emission equipment has buoyancy units, a sealed cabin, a water pump and a water collection and emission pipe. The sealed cabin is detachably connected to the fuselage, and a compartment is arranged in the sealed cabin. The water pump is arranged in the compartment and the side wall of the sealed cabin has at least one concave part which is concave towards the direction of the inner cavity used for slowing down the swaying of water.

Unmanned aerial vehicle

The present disclosure relates to a method and system for pavement structural performance evaluation based on long-range laser vibration measurement. The method can more accurately evaluate the structural performance of the pavement by detecting the actual deflection value of the pavement during aircraft operation; By obtaining real-time deflection data of the airport runway, it is possible to detect changes in the structural performance of the airport runway in the long term without affecting the normal operation of the airport runway. The present invention has strong anti-interference ability, stable detection results, and can achieve non-contact, large-scale, and high-precision measurement of airport pavement deflection.

Method and system for airport pavement structural performance evaluation using long-range laser doppler vibrometer

Drone

A method to test an unmanned aerial vehicle (UAV) using a support component, a universal rotating component, a fixed component and a return component. The method further includes wherein the universal rotating component slides along the Z direction and is arranged on the support component, and one end of the universal rotating component can rotate in a universal way relative to the other end of the universal rotating component. The fixed component is connected to one end of the universal rotating component, and the fixed component is configured to fix the UAV. One end of the return component is connected to the support component, the other end is connected to the other end of the universal rotating component, and the return component is configured to drive the universal rotating component and the fixed component to reset.

Method of testing an unmanned aerial vehicle (UAV) using a test bench

Growing community of inventors

Hong Kong, China

Yu Tian