187 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.

The utility model discloses a quad-rotor unmanned aerial vehicle debugging platform, and particularly relates to the technical field of unmanned aerial vehicles, the quad-rotor unmanned aerial vehicle debugging platform comprises a base, the top of the base is fixedly connected with two fixing blocks, the tops of the two fixing blocks are both fixedly connected with fixing rods, and the inner walls of the tops of the two fixing rods are jointly and fixedly connected with a connecting rod; the outer surface of the connecting rod is rotationally connected with a fixing base, and a supporting assembly is arranged above the base. According to the four-rotor unmanned aerial vehicle debugging platform, the supporting assembly is arranged, specifically, the motor is started to drive the supporting plate to slide upwards on the outer surface of the corresponding fixing block so as to support the fixing base, manual supporting by workers is not needed, the workers can be liberated from the tedious task, and the debugging efficiency is improved. According to the unmanned aerial vehicle, the unmanned aerial vehicle does not need to be supported by a specially-assigned person, the labor cost is reduced, and the situation that the unmanned aerial vehicle is suddenly started under the unexpected condition, and consequently workers are injured can be avoided.

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.

The application provides a tilt thrust four-duct aircraft, comprising: four curved ducts, which are distributed in up, down, left and right directions; a fixed frame, which is provided with four arc-shaped grooves, and the four ducts are embedded in the four arc-shaped grooves and fixed; and a duct fan is obliquely installed in each duct. The curved duct design can effectively reduce noise, and can reduce the danger that the aircraft may cause to people and objects in the surrounding environment during flight, and the safety is significantly improved compared with an open rotor configuration.

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. The name of the design product: toy quadcopter (D5). 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.

1. The name of the design product: four-axis unmanned aerial vehicle. 2. The use of the design product: for aerial photography, monitoring survey, rescue search, logistics transportation, scientific research and entertainment activities, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

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. The name of the design product: quadcopter unmanned aerial vehicle. 2. The use of the design product: for reconnaissance, mapping for 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. Name of the product in this design: Unmanned Aerial Vehicle (Quadcopter). 2. Intended use of this design: for use in unmanned aerial vehicles (UAVs). 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. Name of the product of this design: Toy (quadcopter). 2. Purpose of this product: This product is intended for children to play with. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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.

The invention provides a quad-rotor unmanned aerial vehicle time sliding mode control method and device based on actuator faults, and relates to the technical field of unmanned aerial vehicle flight control. The method comprises the following steps: establishing a quadrotor unmanned aerial vehicle body coordinate system and an inertial coordinate system based on the structural characteristics of a quadrotor unmanned aerial vehicle with an X-shaped layout; based on the influence of the partial failure fault and the bias fault of the actuator, constructing a four-rotor unmanned aerial vehicle kinetic model which takes the uncertain item external disturbance and the actuator fault as lumped disturbance in a unified manner; introducing an auxiliary equation to design a predefined time disturbance observer; respectively designing a non-singular predefined time sliding mode controller based on a position subsystem and an attitude subsystem to carry out segmentation processing on a sliding mode surface; and based on a sliding mode controller and in combination with a disturbance observer, inner and outer ring coordination control of the four-rotor unmanned aerial vehicle is realized. According to the method, unknown disturbance and actuator faults can be effectively handled, the response speed, robustness and fault-tolerant capability of the system are remarkably improved, and the method is suitable for high-precision flight tasks in a complex environment.

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. Name of the product in this design: Quadcopter Drone (10KG). 2. Application of this design: This design is intended for use with drones, especially for aerial photography, flight entertainment, and cargo transportation. 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. 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.