16results about How to "Smooth landing" patented technology

The invention relates to the technical field of concrete electric pole manufacturing, and discloses an optimized steel fiber anti-crack ultra-high performance concrete centrifugal electric pole manufacturing method and system. The method comprises the following steps: dividing an electric pole manufacturing process into a plurality of manufacturing units according to production batches, and collecting material component data, process setting data and online detection data in each manufacturing unit to form a multi-source production data set; calculating an anti-cracking performance index and a strength performance index based on a multi-source production data set, and dynamically outputting an initial process correction value through a dual-threshold monitoring mechanism and a performance adjustment model; performing adaptive adjustment on the initial process correction value of each manufacturing unit according to the production correlation between the adjacent manufacturing units to generate an adjusted process correction value; and carrying out serialization processing on the adjusted process correction value, and outputting a production optimization instruction which is applied to a manufacturing execution process. According to the method, electric pole manufacturing whole-process data integration and dynamic process optimization are achieved, and the production efficiency and the product quality stability can be improved.

This utility model discloses a landing gear for a drone with stable landing, including a support structure consisting of two sets. Each support structure includes a rhomboid block and mounting tubes. Sleeves are fixedly connected to two opposite corners of the front face of the rhomboid block, and sleeves are fixedly connected to the other two opposite corners of the rear face of the rhomboid block. The four mounting tubes are arranged in an X-shape, with one end of each tube installed inside a sleeve and the other end fixedly connected to a mounting plate. A mounting cavity is formed at the center of the mounting plate. Two mounting plates at the bottom are equipped with anti-vibration structures. The X-shaped distribution of the rhomboid blocks and mounting tubes enhances the overall stability of the landing gear, allowing the drone to land more smoothly and reducing the risk of damage due to instability. Furthermore, the combination of mounting tubes and sleeves facilitates efficient assembly, and if one component is damaged, it can be replaced promptly, ensuring the overall service life.

The utility model discloses an unmanned aerial vehicle airborne platform for road defect detection and a detection device, and relates to the technical field of aircraft accessories, the airborne platform comprises an equipment frame and a plurality of supporting legs, each supporting leg is provided with a ball joint structure, and the supporting legs are connected with the equipment frame through the ball joint structures; the ball joint structure comprises a ball seat and a ball head, the ball seat is fixed on the equipment frame, and the ball head is rotatably arranged in the ball seat; the upper end of the supporting leg is fixedly connected with the ball head; the ball joint structure further comprises an elastic washer and a supporting table, the elastic washer and the supporting table are each of an annular structure arranged on the outer side of the supporting leg in a sleeving mode, the supporting table is fixed to the supporting leg, and the elastic washer is clamped between the ball seat and the supporting table. The supporting leg has a preset posture inclining outwards, the lower end of the supporting leg is located on the outer side of the upper end of the supporting leg, and the detection device comprises the airborne platform. According to the structural design adopted by the scheme, the unmanned aerial vehicle can stably land under the complex road surface condition of a road.

The application relates to the technical field of bridge construction equipment, in particular to a prefabricated and assembled rhombic hanging basket and a mounting method thereof. The rhombic hanging basket comprises a main truss system, a walking system, a bottom basket platform, a suspension system and a composite anchoring system. The mounting based on the rhombic hanging basket comprises the following steps: prefabricating a foldable rhombic truss; using a hoisting device to pull the truss to unfold and pin shaft locking; installing a walking system and other components, using multiple frequency conversion winches to cooperate with displacement sensors, and using a synchronous deviation control algorithm to hoist the bottom basket platform as a whole. In the hanging basket, the rhombic truss can be folded and unfolded, the convenience of transporting and installing the hanging basket on site and putting into construction is improved, the walking system and the composite anchoring system are matched, the efficiency of moving the hanging basket is improved, the automatic synchronous control technology solves the hoisting control problem of the bottom basket under complex environment, the construction efficiency and safety of the hanging basket as a whole are improved, and the risk of high-altitude operation is reduced.

This invention discloses a method for missile evasion by a split-type aircraft based on deep reinforcement learning, and the split-type aircraft itself. The method includes the following steps: S1. For the control of the split-type aircraft, a decision network and an evaluation network based on the DDPG algorithm are constructed and trained using reinforcement learning; wherein, the split-type aircraft includes a front sub-aircraft, a rear sub-aircraft, and a front-rear sub-aircraft separation device, the front sub-aircraft has a nose landing gear, a spare main landing gear, and a spare engine, and the rear sub-aircraft has a main landing gear and a main engine; S2. During flight, the x-axis distance, y-axis distance, and directional angle actually observed by the aircraft radar are used as state inputs into the decision network, which controls the aircraft's steering and the separation of the rear sub-aircraft from the front sub-aircraft. This invention can control the split-type aircraft's steering to align the aircraft with the missile's direction and separate the rear sub-aircraft from the front sub-aircraft before the missile hits the aircraft, thus achieving the function of split-type missile evasion.

The application discloses a parachute harness release device and an airplane. A first explosion cavity and a rope passing channel are formed on a suspension point joint seat. An explosion pin comprises a rope winding end and an explosion end. The explosion end is provided with a sealing part. The rope winding end passes through the rope passing channel. The connection part between the rope winding end and the explosion end and the explosion end are arranged in the first explosion cavity. A sealed first air chamber is formed between the explosion pin and the first explosion cavity near the rope passing channel. A tensioning connecting piece is arranged on the suspension point joint seat and connected with the rope winding end. An igniter is arranged on the explosion end and used for releasing gas into the first air chamber. The tensioning connecting piece is disconnected, the rope winding end moves out of the rope passing channel, and a harness inner loop wound on the rope winding end is released. The parachute harness release device reserves a part of the length of the parachute rope. The parachute rope is released twice. The acceleration of the airplane and the pilot on the airplane when the parachute slows down is reduced. The possibility of injury is reduced.

The present application relates to the technical field of automatic control of aircraft, solve the problem that the unmanned aerial vehicle cannot realize the hovering at a fixed point when the precision of height fixing is insufficient and the GPS signal is poor, especially relates to a lightweight four-rotor unmanned aerial vehicle and a control method thereof, the control method comprises the control of the attitude of the unmanned aerial vehicle, the control of the height of the unmanned aerial vehicle and the position fixing control of the unmanned aerial vehicle, and after realizing the control of the attitude of the unmanned aerial vehicle, the control of the height of the unmanned aerial vehicle and the position fixing control of the unmanned aerial vehicle, a protection mechanism is executed according to the signal state of the unmanned aerial vehicle based on a safety protection algorithm. The control method can realize high-precision position fixing and unmanned aerial vehicle optical flow fixing effect. At the same time, a safety protection algorithm of the unmanned aerial vehicle is designed, the signal state of the unmanned aerial vehicle is identified through the algorithm, and the unmanned aerial vehicle can land smoothly after the remote control signal of the unmanned aerial vehicle is lost.

The invention relates to an aircraft carrier convenient for take-off and landing of an aircraft, which comprises a main body, and a buffer part which is coupled to the upper surface of the main body with a landing plate which is elastically retracted and extended, and which elastically buffers an impact force when the aircraft lands on the landing plate. Through the structure, the main body is combined with the landing plate which is elastically retracted and stretched out, so that the impact force during landing of the aircraft is effectively buffered, stable landing can be ensured, and the durability of the aircraft body can be remarkably improved.

The invention relates to the technical field of new energy collection, and particularly discloses a communication signal tower integrating new energy collection and storage, unmanned aerial vehicle operation and maintenance and electric vehicle charging, the communication signal tower comprises a signal tower base, and the bottom of the side face of the signal tower base is fixedly connected with an automobile charging platform; the position, located above the automobile charging platform, of the side face of the signal tower base is fixedly connected with an unmanned aerial vehicle platform, the deflection assembly comprises a second telescopic rod, a driving shaft of the second telescopic rod is fixedly connected with a rotating seat, and deflection fan blades are rotationally connected to the side face of the rotating seat. The side faces of the deflection fan blades are rotationally connected with one ends of adjusting pull rods, and the ends, away from the deflection fan blades, of the adjusting pull rods are rotationally connected with the side faces of the fixed ends of the second telescopic rods. The purpose of facilitating photovoltaic collection and utilization and unmanned aerial vehicle maintenance is achieved.

The utility model belongs to the technical field of agricultural unmanned plane, concretely is an agricultural unmanned plane that carries out spraying, including unmanned plane body, is hung with the spraying frame subassembly on unmanned plane body, the spraying frame subassembly includes the suspension frame and sets up the spraying pipe on the suspension frame, be equipped with a plurality of spray heads on the spraying pipe, the suspension frame includes the support and the hanger, the support and the hanger are hinged and connect, the hanger can rotate around the support, and the hinged place is connected with the rotary disc, the hanger and the spraying pipe are detachable and connect, the utility model discloses through the suspension frame and the spraying pipe hinged type connection to make the spraying pipe can rotate relative to the suspension frame to change the angle of spraying, adjust according to the angle of spraying required, to reach the multi -angle spraying process.

An unmanned aerial vehicle for forestry investigation comprises an unmanned aerial vehicle body, an electric telescopic rod, an upper traction block, a lower traction rod, movable supporting legs, a traction spring, a stirring wheel driving motor body, a stirring wheel, a knocking piece, a bird frightening bell, a camera mounting base and a forestry difference adjustment camera, and the bottom of the unmanned aerial vehicle body is connected with the camera mounting base; main supporting legs are arranged at the bottom of the unmanned aerial vehicle body and distributed on the two sides of the camera mounting base, telescopic rod mounting tables are arranged at the bottoms of the main supporting legs, electric telescopic rods are fixedly connected to the side faces of the telescopic rod mounting tables, and telescopic pipes are arranged at the bottoms of the electric telescopic rods; three movable seat bearing rods are arranged on the side face of the telescopic pipe, the three movable seat bearing rods are evenly arranged around the telescopic pipe, supporting foot bearing columns are arranged on the side faces of the movable seat bearing rods, and the three sets of supporting foot bearing columns jointly form a locking block mounting groove.

This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to an inspection UAV for power distribution network maintenance. The UAV includes a UAV body with symmetrically fixed arms on both sides. A propeller is rotatably mounted on the top of each arm. A camera is mounted on the front end of the UAV body. A support mechanism is also present at the bottom of the UAV body, providing support during landing and significantly improving operational stability in complex environments, protecting internal precision sensors and the camera from mechanical damage. A protective mechanism is also present at the front end of the UAV body, protecting the camera with a protective cover and effectively blocking the direct impact of the propeller's downwash airflow on the camera during landing. This utility model significantly improves the efficiency and safety of power grid operation and maintenance through the cooperation of the support and protective mechanisms.

The utility model discloses an unmanned aerial vehicle aerial photography damping device which comprises an unmanned aerial vehicle body, a camera is rotatably connected below the unmanned aerial vehicle body, propellers are rotatably connected to four corners of the unmanned aerial vehicle body, a cylinder barrel is fixedly connected below the propellers, a piston is slidably connected into the cylinder barrel, and a piston rod is fixedly connected to the center of the lower end of the piston. A damping mechanism is arranged below the piston rod and comprises a spring, the upper end of the spring is fixedly connected with the bottom of the cylinder barrel, the lower end of the spring is fixedly connected with a lifting ring, and the piston rod is sleeved with the lifting ring in a sliding mode. Meanwhile, the lifting ring greatly compresses the spring upwards, most external force borne by the unmanned aerial vehicle is removed, the phenomenon that the spring cannot be greatly contracted due to the fact that the spring is fixedly connected with one end of the piston rod is avoided, and therefore the damping effect of the unmanned aerial vehicle aerial photography damping device is improved, and stable landing of the unmanned aerial vehicle is guaranteed.

The utility model discloses an adjustable motorcycle frame, it includes main beam, the top of main beam is provided with the saddle, and one end fixed mounting of main beam has the outer tube, and the inside movable sleeve of outer tube has the inner tube, and the fixed mounting of fixed plate has outside outer tube. Through above -mentioned structure, the adjustable motorcycle frame of this technical scheme, the movable sleeve of inner tube in outer tube, cooperate three mounting round holes on outer tube, second spring, limit axle and steel ball, and a plurality of limit holes on inner tube, and the rider can according to own shoulder and arm stretch demand, press the limit ring and make the steel ball on limit axle separate from the limit hole of inner tube, can promote the inner tube to slide to the suitable height in the outer tube, and the steel ball is fixed in the corresponding limit hole under the action of second spring, and the handlebar height is adjusted easily, to avoid higher rider bending and riding or the height of shorter rider arm needs excessive stretching.

A variable configuration tiltable three-rotor unmanned aerial vehicle and a control method thereof, comprising an unmanned aerial vehicle body, a power module and a three-way alloy connecting piece, the unmanned aerial vehicle body is composed of two layers of composite material plates, and a storage space is arranged between the two layers of composite material plates; the power module adopts a two-degree-of-freedom tilting structure design; the unmanned aerial vehicle body and the power module are connected through the three-way alloy connecting piece. The control method comprises designing a position controller and an attitude controller; obtaining the position information and the attitude information of the unmanned aerial vehicle and inputting into the control, obtaining the expected thrust and the expected moment; taking the expected thrust and the expected moment as known quantities, solving the expected tilting angle and the expected thrust of each power module based on a control efficiency model and a power module dynamics model. The present application realizes full decoupling of position and attitude, has the ability to fly in any direction at any attitude and fast attitude maneuvering capability. The present application can be widely applied in the field of unmanned aerial vehicle technology.