122 results about "Quadcopter" patented technology

The invention relates to the technical field of unmanned aerial vehicle navigation, in particular to a low-complexity obstacle avoidance method and system for a quad-rotor unmanned aerial vehicle, and the method comprises the steps: representing the geometric shapes of the quad-rotor unmanned aerial vehicle and an obstacle as a union set of convex geometries; the obstacle avoidance requirement between the unmanned aerial vehicle and the obstacle can be converted into a mathematical problem that the intersection between two union sets is an empty set, and the implicit obstacle avoidance mathematical expression with the intersection being the empty set is converted into continuous differentiable explicit obstacle avoidance inequality constraints by further using the hyperplane separation theorem, so that efficient obstacle avoidance between the unmanned aerial vehicle and the obstacle is realized. According to the method, the separation hyperplane between the unmanned aerial vehicle and the obstacle is creatively and directly constructed, the constructed obstacle avoidance inequality is micro-continuous and can be directly adapted to a universal nonlinear solver, the efficiency of the unmanned aerial vehicle for rapidly planning the flight path is effectively improved, the accurate and real-time obstacle avoidance requirement of the unmanned aerial vehicle can be met, and the method is suitable for large-scale popularization and application. Practical technical support is provided for rapid flight path planning of the quad-rotor unmanned aerial vehicle.

The invention discloses an unmanned aerial vehicle motion planning method and system for guiding visual heat conduction based on depth information, and the method comprises the steps: constructing a motion planning model, and inputting a depth image, an unmanned aerial vehicle attitude and an expected speed into the motion planning model, and real-time high-speed obstacle avoidance of the quad-rotor unmanned aerial vehicle in an unknown complex environment is realized. According to the motion planning model, a visual heat conduction module with a global receptive field is adopted as a sensing system trunk, a depth information guide heat conduction operator module is introduced, depth information is coded into an energy weight, and heat conduction calculation is performed after spatial information and scene representation are guided to be coupled, so that the model can focus on a close-range obstacle. The generated depth information guide scene representation is then input to a decision module to generate an action instruction.

An unmanned quadcopter aircraft system integrated with a pneumatic paintball projectile launching mechanism for recreational and training applications. The system includes a compressed gas powered single-shot paintball launcher with gravity-fed ammunition hopper, mechanical counterweight recoil compensation, and multiple electronic safety systems. GPS-based geofencing prevents firing in restricted zones, while altitude sensors prevent firing above predetermined heights. The flight control system automatically reduces aircraft speed and altitude limits when the projectile system is armed. A ground control system integrates standard flight controls with firing controls, safety indicators, and emergency stop capability. An alternative embodiment allows a used to adjust the elevation of the firing system while maintaining the orientation of the drone in space and also allowing recoil compensation. The system enables aerial paintball gaming and training scenarios while maintaining safety through redundant control systems and automatic parameter limiting.

The utility model discloses a biological prevention and control releasing device based on a four-axis unmanned aerial vehicle, which belongs to the technical field of biological prevention and control and comprises an unmanned aerial vehicle body. The throwing mechanism comprises a connecting assembly and a storage shell, the top of the connecting assembly is fixedly connected to the bottom of the unmanned aerial vehicle body, the bottom of the connecting assembly is clamped to the two sides of the top of the storage shell in a limiting mode, the storage shell comprises a storage bin, a protection cover is connected to the bottom of the storage bin, and a discharging bottom cylinder is connected to the bottom of the protection cover; a discharging buffer pipe is arranged among the storage bin, the protection cover and the discharging bottom cylinder in a communicating mode. And a synchronous putting assembly is arranged in the storage shell and comprises a material shifting rod and a discharging ratchet wheel, the material shifting rod and the discharging ratchet wheel are arranged at the two ends of the discharging temporary storage pipe in a transmission mode correspondingly, and the synchronous putting assembly is used for stably putting trichogramma eggs, so that the situation that the trichogramma eggs are put too much or too little on one side is avoided.

The present application relates to a kind of dual-mode quadcopters, including fuselage, circular arc shell, short wing of circular arc shell, long wing of circular arc shell, short wing of fuselage and long wing of fuselage;For the commonness of traditional four rotors and four propeller fixed wing all have four sets of propeller power system, and the relative position difference of four sets of propeller "X" type arrangement and "one" type parallel, design two groups of mirror image symmetry long half wing and short half wing, adopt single wing rotation switching mode, mainly meet the relative position of four rotors and four propeller fixed wing airfoil and propeller.The application is repeatedly switched between fixed wing and four rotors, compared with the configuration switching mechanism of tilt rotor aircraft, it is more simple and reliable, control is more stable;Compared with composite quadcopter, it does not need to set special lifting power device, and load utilization rate is higher.

1. The name of the design product: quadcopter (MINI5). 2. The use of the design product: the design product is used for entertainment and play. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This invention relates to time series prediction of UAV faults based on entropy weight fusion and a time-graph convolutional network (T-GCN). It acquires data on the UAV's acceleration, angular velocity, and angle in the x, y, and z directions using sensors; combines the data into a matrix and calculates the entropy weight fusion value; determines the threshold value for fault occurrence based on the chi-square distribution; and constructs graph data for input into a T-GCN model based on the relationships between the sensor data. n historical time data points are segmented from the graph data and input into the T-GCN model. After inputting n historical time data points, the T-GCN model can predict data at time T in the future. After model training, it captures the spatiotemporal correlation of the data obtained from the UAV's sensors and predicts the graph data based on the time series. The prediction results are accurate and reliable, facilitating timely maintenance of quadcopter UAVs.

1. The name of the design product: wide-body quadcopter. 2. The use of the design product: for passenger or cargo transport. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.

1. Name of the product in this design: Toy Quadcopter (D15). 2. Purpose of this design: for children to play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: quadcopter (SF1200). 2. The use of the design product: for quadcopter. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of the design product: toy quadcopter (D2). 2. The use of the design product: children playing. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. Name of the product in this design: Adjustable wheelbase fully enclosed quadcopter drone (miniature). 2. Purpose of this design: This design is intended for use in primary school students' study tours and competitions. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to unmanned plane technical field discloses a four rotor unmanned plane frame assembly, including unmanned plane body, the both sides front end and middle part of unmanned plane body all are provided with adjusting mechanism, four adjusting mechanism one side all are provided with machine arm, four adjusting mechanism includes four adjusting column, four base pile, four adjusting ring and four screw rods, four adjusting column respectively mobile sleeve sets on four base piles, four adjusting ring inner wall both sides all are provided with the limit slot, four adjusting column inner wall upper end all are provided with multiple positioning slots that are circularly distributed, four screw rods lower ends all rotatably set up with the positioning plate, four screw rods upper ends all are fixed with the knob setting. In the utility model, through rotating machine arm adjusting column, realize the adjustment of machine arm horizontal angle, after adjusting, rotate the knob and move the positioning plate to the positioning slot through the screw rod, fix the arm angle, ensure the stability of the angle in the flight process.

1. The name of the design product: Quadcopter (F47). 2. The use of the design product: The design product is used for entertainment, playing quadcopter toys. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. Name of the product in this design: Unmanned Aerial Vehicle (10-inch Variable Configuration Quadrotor FPV). 2. Purpose of this design: An FPV unmanned aerial vehicle (UAV) carrying a corresponding payload for reconnaissance, transport, or attack. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. Name of the product in this design: Toy Quadcopter (17). 2. Purpose of this design: For play. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: quadcopter. 2. The use of the design product: quadcopter for entertainment and play. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. The name of the design product: single person electric aircraft (four-axis multi-rotor). 2. The use of the design product: for four-axis multi-rotor single person electric aircraft. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

Invention Title: A Quadrotor-Autorotor Combined with a Vertical Take-Off and Landing Variant Aircraft and Control Method This specification discloses a quadrotor-autorotor combined with a vertical take-off and landing (VTOL) variant aircraft and its control method, belonging to the field of aircraft technology. The aircraft includes: a power system, a flight control system, a quadrotor system, an autorotor system, and a variator system. The power system provides power to the aircraft; the flight control system is responsible for regulating the parameters of the quadrotor system and the variator system; the quadrotor system provides lift when the aircraft is in a stable state (VTOL or hovering), and provides forward and steering power when the aircraft is in cruise mode; the autorotor system provides lift when the aircraft is in cruise mode; the variator system rotates the quadrotor variator spindle via a driver, thereby rotating the quadrotor motors' planar angle. Combined with the flight control system's regulation of the quadrotor motor's planar angle and the speed of the four motors, a reasonable distribution of horizontal and vertical forces is achieved, enabling a smooth transition between stable and cruise states. Compared to traditional autogyros, this aircraft can take off and land vertically and hover. Its control is simple and efficient. Compared to traditional quadcopters, it is more energy-efficient and safer. This invention combines the advantages of both quadcopters and autogyros, resulting in an economical, easy-to-handle, safe, and reliable vertical takeoff and landing flight platform.

1. Name of the product in this design: Remote-controlled induction quadcopter (Q66). 2. Purpose of this design: For children to play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention relates to an autonomous multifunctional inspection and rescue quadcopter drone system. The proposed drone system features an adaptive design for operation in multiple environments, wherein the system employs robust carob fiber frame, with a top protective cage, a bottom floats for water landing and floating capability, and advanced sensor suits, and artificial intelligence capabilities, wherein the advance sensor suits include LiDAR, thermal camera, and RGB camera, and wherein the AI capabilities allow the drone to performing autonomous navigation, and fault detection, which significantly enhance efficiency and safety in inspection and rescue operations. The proposed drone system has reduced operational costs and complexity, enhanced safety and reliability during inspections, and faster and more effective emergency response capabilities.

1. The name of the design product: quadcopter. 2. The use of the design product: for toys. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

1. Name of the product in this design: Unmanned Aerial Vehicle (quadcopter). 2. Purpose of this design: for remote-controlled flight. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention relates to the field of aircraft technology, specifically to a vertical takeoff and landing (VTOL) aircraft and its control method. The VTOL aircraft includes a tailless flying wing fuselage. Multiple drag rudders are mounted on the trailing edges of the left and right wing surfaces of the fuselage. These drag rudders can deflect vertically, generating differential drag through asymmetric deflection to provide yaw control torque for the fuselage. A tiltrotor quadcopter system is also mounted on the fuselage. The left and right propellers of the tiltrotor quadcopter system can differentially adjust their speed to further assist in providing yaw control torque. This invention significantly improves the aircraft's crosswind resistance during VTOL by eliminating the vertical takeoff and landing phase, while also achieving better aerodynamic efficiency during level flight. The integrated drag rudders and tiltrotor quadcopter system on the fuselage provide yaw control torque, thereby improving the aircraft's directional stability.

This invention relates to the field of quadcopter unmanned aerial vehicle (UAV) control technology, and more particularly to an adjustable predetermined performance control method for a quadcopter UAV with actuator saturation. The method includes: acquiring the physical parameters of the quadcopter UAV; constructing a mathematical model of the quadcopter UAV system based on the physical parameters, the mathematical model considering time-varying mass, actuator saturation, and external disturbances; adjusting the initial performance index range based on the saturation deviation of the actuator input and the limit value; performing state transformation on the error variables of the quadcopter UAV according to the adjusted performance index range; designing an adjustable preset performance controller for the transformed error variables; and applying the adjustable preset performance controller to the mathematical model to ensure the stability and preset performance of the quadcopter UAV system when the actuator is saturated. This invention improves the reliability of the system.

This invention proposes a symmetrically arranged cross-wing unmanned aerial vehicle (UAV) system, relating to the field of UAVs. It includes a fuselage structure, a power module, and a flight control module. The fuselage structure comprises a cylindrical fuselage and four wings symmetrically arranged in a cross pattern around the cylindrical surface of the fuselage; the four wings are arranged in an X-shape or a cross shape. The power module includes motors and propellers. The motors are located at the wingtips, with their output shafts aligned with the fuselage axis and facing the tail of the fuselage. The propellers are connected to the motor output shafts. The flight control module is located inside the fuselage and is used to control the output speed of the four motors. This system combines the advantages of a quadcopter FPV and a fixed-wing UAV, generating lift from the wings while also cruising and sprinting in fixed-wing form. Furthermore, by changing the motor speeds, it can control the pitch, yaw, and roll attitude of the UAV, eliminating the need for separate control surfaces, thus simplifying the structure and reducing costs.

1. The name of the design product: unmanned aerial vehicle (quadcopter). 2. The use of the design product: the design product is used for quadcopter unmanned aerial vehicle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: aircraft frame (four-axis eight-blade). 2. The use of the design product: used as the body structure of the aircraft, mainly to carry, support and protect the flight control system, power system and mission load. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: Quadcopter (X4). 2. The use of the design product: For manned flight. 3. The design points of the design product: In shape. 4. The picture or photo that best shows the design points: Fig. 1.