202 results about "Airway" patented technology

The invention discloses an AUV (Autonomous Underwater Vehicle) three-dimensional airway planning method, which improves the planning speed and planning speed of an algorithm by improving a particle initialization method, setting a punishment value for entering an obstacle and setting the step length of an added particle moving position. The method mainly comprises the steps of three-dimensional environment abstract modeling, particle position initialization, punishment value setting of entering obstacles, cost function value calculation, particle movement step length setting, cost value comparison of a particle swarm, particle position updating and planning result output. Compared with a traditional quantum particle swarm airway planning algorithm, the three-dimensional airway planning method provided by the invention considers the influence of ocean current factors, so that the algorithm application is wider; meanwhile, compared with two-dimensional air route planning, three-dimensional air route planning is more practical, and the actual navigation requirement can be better met.

Airway devices and securing devices are disclosed. Methods of making and using airway devices and securing devices are also disclosed.

The invention relates to an AI intelligent vertical take-off and landing (VTOL) and sea-land-air convertible aircraft carrier, carrier and universal carrying device which are capable of changing motion modes among sea, land and air, and vertically taking off, landing and moving in any geographical environment. The universal carrying device comprises a carrying platform, connectors and engines. Thechange of the connectors controls the change of the distance / angle / direction of nozzles of the engines relative to the carrying platform, controls the change / locking / retraction / extension of the engines relative to the carrying platform, and controls the disconnection / connection / replacement / increment-and-decrement between the engines and the carrying platform. The change of the motion modes amongsea, land and air is realized through various changes of the engines relative to the carrying platform and the cooperation of assisting devices. The assisting devices comprise various compartments, airbags, an air passage, water bags, rails, rail vehicles, manipulator combinations, a movable repairing device, a movable cockpit / cargo compartment, a movable engine, a generator, an underwater jet-flow power device and other required equipment.

The invention discloses an improved QLearning-based multi-unmanned aerial vehicle local airline planning method and an improved QLearning-based multi-unmanned aerial vehicle local airline planning device. The method specifically comprises the following steps: updating the flight environment of the unmanned aerial vehicle by utilizing sudden threat source information detected by a sensor; designing an action space and an action selection strategy, constructing a reward function, and constructing a multi-unmanned aerial vehicle local route planning system model; a cerebellar neural network algorithm is adopted as a state generalization method to be combined with a QLearning algorithm, a model is solved, an action strategy enabling an accumulated return value to be maximum is quickly found out, and therefore an optimal local airway under the multi-unmanned-aerial-vehicle uncertain environment is quickly planned. According to the invention, path search of multi-unmanned aerial vehicle local airline planning in an unknown environment can be quickly realized.

The invention provides a multi-mode receiver ground-based augmentation technology device and a processing method. A GNSS receiving assembly receives satellite navigation signal data and SBAS augmentation signal data; a VDB receiving assembly receives GBAS enhanced signal data; a GLS processing assembly analyzes received GNSS receiving assembly data and VDB receiving assembly data; landing guidancecalculation is carried out according to a working mode selection command and a wave channel selection control command sent by an interface processing assembly, and the interface processing assembly converts navigation and landing guidance data into bus signals and sound analog quantity output signals. According to the method, the overall availability of a satellite navigation system is improved,the positioning precision is improved, the positioning precision and integrity of satellite navigation in an airway and a non-precision approach area are improved, and the positioning precision, integrity and availability of satellite navigation in a precision approach area are improved.

The invention discloses a cross-medium aircraft. The aircraft comprises an aircraft body, hydrofoils are connected to the aircraft body through a storage mechanism, main wings are connected to the aircraft body through a discarding mechanism, a water inlet and an air inlet are further formed in the aircraft body, an air nozzle and a water nozzle are further formed in the tail end of the aircraft body, the air inlet communicates with the air nozzle through an air channel, and the water inlet communicates with the water nozzle through a water channel; a tail vane is also connected on the rear end of the aircraft body; the aircraft is additionally provided with the main wings to provide lifting force for aerial working conditions, and the main wings are upper single wings to reduce water entry impact. The attack angle of the main wings is changed by adjusting pitching of the aircraft so as to achieve the purpose of adjusting the lifting force of the main wing. An overwater / underwater cross-medium engine technology is adopted, and an air spraying port and a water spraying port are formed in the tail end to be matched with a propelling mode of air spraying and underwater water spraying.Retractable hydrofoils are additionally arranged on the front portion of the aircraft and used for providing enough lifting force in the take-off process, and the hydrofoils are retracted under the stable operation condition to reduce navigation resistance. When the aircraft is attacked in water, the main wings are discarded, the navigation resistance is reduced, and the navigation speed is increased.

The invention provides a time parameterized route planning method for an unmanned aerial vehicle in an unknown environment. The method comprises the following steps: S1, performing feasible path search in an unknown environment by using a sampling-based RRT algorithm, performing redundant point elimination after judging the contribution rate of sampling points, and performing fitting smoothing ona sampling-based RRT path by using a piecewise Bezier curve function to obtain a spatial airway; and S2, performing time parameterized optimization on the space airways obtained in the step S1 to enable the space airways to have unmanned aerial vehicle airway properties, achieving balance between airway execution time and airway state output by introducing weight factors, and finally outputting time parameterized planned airways. The invention further provides a time parameterized route planning system for the unmanned aerial vehicle in the unknown environment. The method has the beneficial effect that the unmanned aerial vehicle route planned by the method shows the particularity of the unmanned aerial vehicle route.

Airway devices and tube securing devices are disclosed. Methods of making and using airway devices and tube securing devices are also disclosed.

The invention discloses an unmanned aerial vehicle route planning method based on safety cost evaluation. The method comprises the following steps of: rasterizing the ground projection of the flight airspace of an unmanned aerial vehicle to obtain a plurality of square grids; quantitatively describing the flight risk of the unmanned aerial vehicle in the grids by using a grid safety factor; constructing a route planning total cost expectation function based on the grid safety factor and the route distance of the unmanned aerial vehicle; and improving the ant colony algorithm by taking the airway planning total cost expectation function as a target function of the ant colony algorithm, performing iterative computation by utilizing the improved ant colony algorithm, and finally obtaining anexpected flight path after double optimization of airway safety and airway cost. According to the method of the invention, a planned unmanned aerial vehicle airway can have the function of a ground personnel safety barrier. Furthermore, the serious consequence that the unmanned aerial vehicle crashes to injure people is relieved in the strategic stage, and risk relieving is advanced.

A system (10) and method of insufflating-exsufflating a subject (12) that enables monitoring and / or control over an enhanced set of breathing parameters during insufflation-exsuffiation. The system and / or method may include automatic triggering and / or notification to a caregiver of insufflation-exsuffiation. The insufflation-exsuffiation of the subject may be preceded by a secretion loosing routine that loosens secretions in the airway of the subject without moving the loosened secretions up the airway.