84 results about "Airway" patented technology

The invention provides a low-altitude traffic operation control method and system based on moving block. The method comprises the following steps: layering an airspace according to aircraft type performance and service types for the vertical take-off and landing aircraft, and distributing corresponding entering and leaving areas according to flight height layers of the aircraft; quasi-moving block is introduced into a low-altitude traffic system, an air route network and operation rules are designed, a free area-buffer area-block area three-level space structure of an aircraft is dynamically constructed according to the state of the aircraft, when the front aircraft occupies a certain block area, the first area in front of the block area is a buffer area, and the second area in front of the block area is a block area. The second zone in front of the blocking zone is a free zone, the aircraft flies in the free zone according to the current speed, and the aircraft is selected for braking in the buffer zone according to the braking distance obtained through calculation. According to the method, the braking curve is generated by dynamically dividing'free area-buffer area-block area 'and combining the braking performance, so that the safety redundancy is increased, and the safety and airspace utilization rate is improved.

The utility model relates to the technical field of atomizers, in particular to an electronic atomizer which comprises a shell and a microphone, the microphone is arranged in the shell, a mist outlet channel, a first air guide channel, a second air guide channel and a groove are formed in the shell, and the mist outlet channel is communicated with the first air guide channel through the groove; the first air guide channel and the second air guide channel are arranged in a staggered manner and are communicated through a groove; two opposite ends of the second air guide channel are respectively communicated with the groove and the microphone; the grooves are communicated to realize a staggered structure of the second air guide channel and the first air guide channel, so that the blocking and filtering effects are achieved, impurities in the external environment are effectively prevented from directly invading, the microphone is protected from being damaged, the recognition sensitivity of the microphone is prevented from being reduced due to impurity invasion interference, and the working sensitivity of the microphone is improved.

The invention relates to aircraft path planning, in particular to a cross-city low-altitude aircraft path planning method based on a main air route and a dynamic queue, which comprises the following steps: pre-planning and solidifying a low-altitude main air route connected with a main city, and constructing an air route passing dynamic capability diagram; the priority of the aircrafts is identified, the aircrafts applying for the same low-altitude main air route and in the same time period are sorted according to the priority and the application time, a dynamic scheduling queue is generated, and an air route entering time slice and a sequence position in the air route are reasonably distributed for each aircraft; for an aircraft flying across the city, global trunk path planning is firstly carried out, and then local fine path planning is carried out; the access section path, the flight path section path and the access section path are spliced into a complete global flight path, and the global flight path is finely adjusted to deal with emergencies in time, so that flight safety and high efficiency are ensured; according to the method, the defects of unreasonable scheduling, relatively high computing power overhead and insufficient emergency response capability can be effectively overcome.

The utility model relates to the technical field of prefabricated cabins, in particular to a prefabricated cabin with a drainage structure, which comprises a prefabricated cabin main body, a roof is mechanically fixed at the top end of the prefabricated cabin main body, and drainage mechanisms are mechanically fixed on two sides of the outer wall of the prefabricated cabin main body and the top end of the roof. A plurality of heat dissipation mechanisms are arranged on the two sides of the outer wall of the prefabricated cabin body, communicate with the interior of the prefabricated cabin body and are located on one side of the drainage mechanism. Rainwater at the top end of a roof can slide down through the drainage eave and is far away from the outer wall of the prefabricated cabin body through mutual cooperation of internal parts of the drainage mechanism, and rainwater can circulate in the upper air channel and finally drip into the lower air channel when entering the upper air channel through mutual cooperation of internal parts of the heat dissipation mechanism. And the rainwater is discharged from the interior of the prefabricated cabin main body from the lower air passage, so that the rainwater can be prevented from remaining in the prefabricated cabin main body to influence internal equipment of the prefabricated cabin main body.

The invention provides an air bag pressure linkage adjusting method and system based on airway peak pressure feedback, relates to the technical field of medical equipment control, and aims to solve the problems of control algorithm lag, lack of linkage mechanism, poor clinical practicability, insufficient safety redundancy and the like in the prior art. According to the method, on the basis of airway peak pressure values of a plurality of continuous breathing cycles, an air bag pressure target value is increased in a stepped mode one by one in the breathing cycles, and stable state judgment is synchronously conducted till the airway peak pressure is stable; in the stable maintaining stage, the airway peak pressure is continuously monitored, and if the rise exceeds a preset fluctuation threshold value, the current locking target value is taken as the reference to be increased step by step again according to the preset step length; and if the reduction exceeds the preset fluctuation threshold value, the target value is reset as the initial airway peak pressure, and step adjustment is performed again until the airway peak pressure is stabilized again. The problems existing in the prior art are solved, and dynamic cooperative adjustment of the airway peak pressure and the airbag pressure is achieved.

The application discloses a training method of a classification network, an image classification method, an electronic device and a computer readable storage medium. The training method comprises the following steps: obtaining a training set, each sample image sequence comprising a plurality of sample images; extracting a first feature of the sample image sequence by using a classification network, and obtaining a first processing result by processing the sample image sequence by using a segmentation network; classifying the sample image sequence based on the first feature and the first processing result by using the classification network, to obtain a first classification result, the first classification result being used for representing the category of an airway; and adjusting the parameters of the classification network based on the first classification result. In the foregoing manner, the accuracy of airway classification can be improved.

The air inlet channel structure comprises a speed reducer, an air compressor, a combustion chamber and an exhaust nozzle which are sequentially connected, the air compressor comprises an air inlet casing, a cooling air channel is arranged on the air inlet casing, one end of the cooling air channel is communicated with the speed reducer, and the other end of the cooling air channel is communicated with the outside of the air inlet casing. A negative pressure pipe is further arranged on the speed reducer, and the free end of the negative pressure pipe is communicated with the exhaust nozzle; the air inlet casing comprises a front casing body and a rear casing body which are connected with each other, an air inlet flow channel is arranged between the front casing body and the rear casing body, a front pressurizing cover is arranged on the rear casing body, a rear pressurizing cover is arranged on the front pressurizing cover, the front pressurizing cover and the rear pressurizing cover are buckled with each other to form a pressurizing cavity, and an air compression impeller is arranged in the pressurizing cavity in a matched mode. When the air compression impeller rotates, air flow is sucked into the pressurization cavity from the air inlet flow channel and enters the combustion chamber after being pressurized by the air compression impeller. And the structure linkage is high, the assembly precision is high, the heat dissipation and air inlet efficiency is excellent, maintenance is convenient, and work is stable.

The application discloses an air inlet channel structure applied to a high-power aircraft power system, which comprises a speed reducer, a compressor, a combustion chamber and a tail nozzle which are sequentially connected, the compressor comprises an air inlet casing, a cooling air channel is arranged on the air inlet casing, one end of the cooling air channel is communicated with the speed reducer, the other end of the cooling air channel is communicated with the outside of the air inlet casing, a negative pressure pipe is further arranged on the speed reducer, and the free end of the negative pressure pipe is communicated with the tail nozzle; the air inlet casing comprises a front casing and a rear casing which are connected with each other, an air inlet flow channel is arranged between the front casing and the rear casing, a front pressure-increasing cover is arranged on the rear casing, a rear pressure-increasing cover is arranged on the front pressure-increasing cover, the front pressure-increasing cover and the rear pressure-increasing cover are buckled with each other, an internal pressure-increasing cavity is formed, a compressor impeller is arranged in the pressure-increasing cavity in cooperation, when the compressor impeller rotates, air flow is sucked into the pressure-increasing cavity from the air inlet flow channel, and enters the combustion chamber after being pressurized by the compressor impeller. The structure has the advantages of strong linkage, high assembly precision, excellent heat dissipation and air inlet efficiency, convenient maintenance and stable work.

The invention provides an air route meteorological guarantee method and system based on meteorological numerical forecasting, relates to the field of low-altitude flight safety guarantee, and solves the technical problems that meteorological information and a flight task are disjointed and risk assessment lacks continuity in the prior art. The method comprises the following steps: acquiring observation and forecast data of an air route area, and generating meteorological field data by adopting a four-dimensional variational assimilation method; performing error correction on the meteorological field data through an AI corrector constructed by a space-time diagram convolutional network to obtain an optimized forecast result; according to air route information input by a user, generating air route-height meteorological profile data by using a spatial interpolation algorithm; performing disaster risk assessment on the profile data based on a risk propagation network model, generating a risk thermodynamic diagram and superposing the risk thermodynamic diagram to a profile to form a route guarantee diagram; and finally, combining a multi-objective optimization algorithm to carry out air route dynamic planning and height layer optimization on the guarantee graph, and outputting an optimized flight path.

The application relates to the field of intelligent traffic management, and discloses an intelligent dynamic traffic management method and system for future urban air traffic, which constructs a basic airway network based on urban traffic comprehensive data, realizes fine airspace management in three-dimensional space, avoids planar management of future urban air traffic, makes the management scheme more in line with actual demands, carries out airway optimization processing, avoids multiple risks caused by three-dimensional planar schemes, realizes airway optimization with multiple weight constraints, improves the intelligence and accuracy of the traffic management scheme, carries out hierarchical regulation, realizes dynamic regulation of the traffic management scheme, avoids dynamic risks caused by fixed routes, designs a take-off and landing scheduling model for take-off and landing optimization, improves traffic management efficiency, avoids congestion and superposition risks of traffic hubs, and improves the intelligence and dynamicity of the traffic management method for future urban air traffic.

The present disclosure discloses an air passage unit for a massaging pool. The air passage unit comprises an air passing portion, a first air connecting portion, and a first fastening structure. The first air connecting portion comprises two first air connecting openings configured to be in communication with the air passing portion, the first fastening structure is configured to be detachably connected to the massaging pool, and the two first air connecting openings are disposed on the first fastening structure so as to enable the two first air connecting openings to be synchronously connected to or detached from the massaging pool through the first fastening structure being connected to or detached from the massaging pool. The present disclosure further discloses an air passage system for a massaging pool. The air passage system comprises an air pump, and an air passage unit. The air passage unit comprises an air passing portion, a first air connecting portion, and a control mechanism. The air passage unit is configured to be alternatively in an inflated state or an exhausted state. When the air passage unit is in the inflated state, a first passing passage is in communication with external air, and a second air passing passage is in communication with the first air connecting portion. When the air passage unit is in the exhausted state, the first air connecting portion is in communication with the first air passing passage through the control mechanism, and the second air passing passage is in communication with the external air through the control mechanism.

The invention provides an airway geometric parameter measurement method and system, and relates to the technical field of medical image processing, and the method comprises the steps: obtaining airway foreground voxel data corresponding to a chest CT, and converting a voxel index coordinate into a world physical coordinate according to image space meta-information; obtaining a center line point set through three-dimensional skeletonization, establishing candidate connecting edges in a preset neighborhood, generating a topological tree based on a strategy with branch penalty terms, and completing branch segmentation and generation coding; the method comprises the steps that firstly, a tail end branch meeting a preset condition serves as a starting point for backtracking, the section area and the section equivalent diameter of each node slice are calculated, branch node direction vector score cross angle parameters are fitted, finally, a structured file is summarized and output according to algebraic labels and other dimensions, and stable measurement and standardized output of airway multi-scale geometric parameters can be achieved. And the comparability and repeatability of group scale analysis are improved.

The present disclosure relates to a device for treating obstructed airways. Specifically, the present disclosure relates to a device for treating the symptoms of diseases that cause persistent airflow limitation by applying air pressure oscillations and acoustic vibrations to the airways of a patient during treatment. The device may be used in a system that allows in- home treatment under remote supervision of a physician.

The invention discloses a rasterizing-based 5G tower mast site preferential method for unmanned aerial vehicle channel coverage, and the method comprises the following steps: S1, rasterizing: carrying out the rasterizing of a digital map, an unmanned aerial vehicle channel and a 5G tower mast site, and providing data input for an ITU-R diffraction model; s2, path loss and receiving level calculation: based on an ITU-R diffraction model, calculating the maximum path loss between each 5G tower mast site and an unmanned aerial vehicle channel, and predicting the receiving level of each unmanned aerial vehicle channel in combination with 5G air interface link budget; and S3, site selection and result output: according to the receiving level of each unmanned aerial vehicle channel, generating a 5G tower mast site list for covering the unmanned aerial vehicle channel according to the priority, and calculating the coverage rate. The method has the advantages that the optimal 5G tower mast site is selected efficiently at low cost, and continuous and reliable coverage of the unmanned aerial vehicle channel is achieved.

The invention discloses an unmanned aerial vehicle airspace resource allocation method based on low-altitude economy, and the method comprises the steps: constructing an airspace network under a three-dimensional cylindrical coordinate system at a preset height layer, and calculating a minimum safety distance from a mass center to an airspace pipe wall under the margin constraint based on the model parameters of an unmanned aerial vehicle; calculating a width upper limit and a width lower limit of the dynamic isolation belt; solving the maximum traffic flow by using the airspace flow optimization model; performing elastic segmentation on a time window of the empty channel network by using a space-time diversity reservation algorithm; when the carrying capacity of the same air channel in the air channel network reaches the upper limit, the number of flight air channels is adjusted according to the width adjustment range of the dynamic isolation belt, and airspace resource allocation is carried out by using the collaborative optimization model; according to the method, through space resource division, time resource division and dynamic time slice scheduling, the airspace traffic capacity and the resource utilization rate of the unmanned aerial vehicle can be effectively improved, and therefore collaborative optimization of efficient utilization of airspace resources and flight safety is achieved.

The invention provides a low-altitude airway multi-module integration test method and system suitable for multiple scenes, and relates to the technical field of data processing, and the method comprises the steps: collecting airway point environment data through a multi-modal sensor; establishing a route information potential field based on the route point environment data; positioning an air route abnormal area according to the rotation information of the air route information potential field; under the condition that the air route abnormal area is a null set, returning to collect the air route point environment data again, and otherwise, eliminating a false air route abnormal area in the air route abnormal area based on an entropy increase principle; determining a safe route prediction trajectory based on a potential field gradient descent process by taking avoidance of the rejected route abnormal region as a constraint; updating the flight path of the aircraft by using the safe route prediction trajectory, and returning to re-collect the route point environment data until the target point of the aircraft is reached; and outputting the obtained safe air route prediction track and the removed air route abnormal region as test results.

The invention relates to the technical field of animal medicine, in particular to a self-adaptive control system and method for animal tracheal instillation. The system comprises a preoperative planning module which is used for reconstructing a three-dimensional model based on an individual animal airway CT image, simulating and optimizing administration parameters through computational fluid mechanics, and generating a personalized operation plan; the intraoperative navigation and execution module guides a catheter to reach a target pose through electromagnetic navigation, and performs closed-loop regulation and control on the instillation process through a respiration synchronous triggering algorithm and a pressure self-adaptive control algorithm based on real-time respiration and pressure signals; the central control module coordinates the work of each module; and the postoperative verification module quantifies actual and predicted deposition effects through image comparison. The problems that a traditional method depends on experience, cannot adapt to physiological changes in real time and is poor in drug administration precision are solved, the spanning from experience operation to individualized precise self-adaptive control is achieved, and the safety, repeatability and scientificity of animal experiments are remarkably improved.

The application relates to an interactive bronchoscope navigation system and method, the navigation system comprising: a CT data acquisition module for acquiring chest CT data of a patient; a navigation data acquisition device for simulating the insertion operation of a camera at the head end of an insertion tube of a bronchoscope based on the chest CT data and obtaining insertion position data and posture data of the camera; a digital bronchial tree generation module for generating a digital bronchial tree based on the chest CT data; a navigation data mapping module for mapping the insertion position data and the posture data of the camera into the digital bronchial tree, performing motion calculation of a virtual camera under the constraint of a digital airway lumen of the digital bronchial tree, obtaining the pose of the virtual camera in the digital airway lumen, and realizing simulation operation. The simulation operation of the bronchoscope can be realized, the digital airway of the patient can be preoperatively preoperated, and the operation efficiency is improved, the operation risk is reduced, and the medical cost is saved.

A method for unmanned aerial vehicle (UAV) route planning based on airways includes the following steps: acquiring the UAV airway, the UAV's takeoff point, and its destination; determining the entry and exit layers based on the UAV's takeoff point, destination, and airway; determining the access segment flight trajectory based on the takeoff point, entry / exit layers, and UAV airway entry point information; and determining the exit segment flight trajectory based on the UAV airway exit point information, entry / exit layers, and destination. This application proposes a bidirectional connection mechanism that connects the destination and the UAV airway, as well as the takeoff point and the UAV airway, through the entry and exit layers, greatly improving the safety and smoothness of UAV airway switching.

A methodology is for deriving a guidance route to any selected site including an unplanned ROI site observed in a radiologic imaging view or endoscopic video view on an assisted-endoscopy system during a live surgical endoscopic procedure based on a preloaded initial procedure plan. The initial procedure plan can be updated by identifying a new site s at the unplanned ROI on one of graphical visualization tools of an image-guided endoscope system as a new examination destination and automatically computing the new navigation airway route that leads to the new examination destination.

The embodiment of the invention provides an oscillating airflow control method, device and equipment, a medium and a product. The method comprises the following steps: acquiring a current oscillation period signal of oscillation airflow generated by sputum excretion equipment, and obtaining positive and negative half-cycle peak values and positive and negative half-cycle areas of the current oscillation period signal; the current human body inspiration and expiration state is judged; according to the positive and negative half-cycle peak values and the positive and negative half-cycle areas, positive and negative half-cycle pressure and positive and negative half-cycle time of the next oscillation period signal of the oscillation airflow are adjusted, so that the ratio of the absolute value of the negative half-cycle peak value to the absolute value of the positive half-cycle peak value of the next oscillation period signal of the suction phase is larger than a first value, the absolute value of the positive half-cycle area is not less than that of the negative half-cycle area; the ratio of the negative half-cycle peak absolute value to the positive half-cycle peak absolute value of the next oscillation period signal of the expiration phase is larger than a second value, and the positive half-cycle area absolute value is not larger than the negative half-cycle area absolute value. According to the scheme, the effectiveness of discharging airway secretions is improved.

The application discloses an atomizer and an atomizing device, and belongs to the technical field of atomizing devices. The atomizer has a main air channel and an atomizing area, the main air channel extends along a first direction, and the main air channel and the atomizing area are communicated; the atomizer comprises an atomizing assembly, the atomizing assembly is arranged in the atomizing area, the atomizing assembly has a planar atomizing surface, the planar atomizing surface is parallel to the main air channel, and the planar atomizing surface and the main air channel are arranged in a staggered mode. According to the parallel and staggered arrangement of the main air channel and the planar atomizing surface, the application realizes the cooperation of airflow diffusion and concentrated air supply, guarantees the atomizing efficiency, improves the suction comfort, and has the beneficial effect of improving the user experience.

The utility model provides an air regulating structure and an atomizer, the air regulating structure comprises an air regulating piece and a seat body assembly used for being assembled on the atomizer, the seat body assembly is provided with an air inlet, an atomizing cavity used for mixing air and atomized liquid steam, and an air inlet channel communicated with the air inlet and the atomizing cavity, an air adjusting piece is arranged at the position, close to the atomizing core in the atomizing cavity, in the air inlet channel, and a plurality of vent holes are formed in the air adjusting piece. After external air flows into the air inlet channel through the air inlet in a high-speed, disordered and non-uniform air channel section speed distribution state, the external air can be divided into a plurality of neat and uniform small air flows in the process of flowing through the plurality of vent holes uniformly distributed in the air adjusting piece, and the air flows can be linearly guided; the atomization device reduces or even eliminates transverse flow of airflow, improves airflow pulsation, reduces airflow turbulence, ensures that the speed of the airflow flowing into the atomization cavity tends to be uniform and stable, and effectively ensures that atomized liquid steam and air are efficiently and uniformly mixed in the atomization cavity.

An airway for a negative pressure wound dressing, the airway comprising a first strip of material having a first surface comprising at least one groove, the airway further comprising a film arranged over the first surface of the first strip of material and adhered to the first strip of material around its longitudinal edges, wherein the at least one groove is provided with at least one projection to form at least two channels between the first strip and the film, wherein the airway further comprises a second strip of material having a first surface comprising at least one groove provided with at least one projection, the first surface of the second strip of material being arranged over the film and adhered to the film around its longitudinal edges to form at least two channels, between the second strip and the film.

A task delivery method assisted by an unmanned aerial vehicle belongs to the field of unmanned aerial vehicles, and comprises the following steps: designing a two-stage scheduling and delivery architecture, and carrying out multi-objective optimization of maximizing task satisfaction and minimizing unmanned aerial vehicle energy consumption on the premise of considering soft deadline, flight height multiplexing and channel conflict; according to a multi-target optimization result, the scheduling center allocates tasks to the unmanned aerial vehicles in real time, and the unmanned aerial vehicles dynamically deliver the tasks in a distributed mode; a multi-unmanned aerial vehicle dynamic concurrent delivery scheme is designed, and the scheme comprises a Gal-Shapley-based task allocation algorithm, a Q-Learning-based unmanned aerial vehicle path planning algorithm and a channel conflict avoiding strategy, and is used for jointly optimizing task allocation identifiers and unmanned aerial vehicle paths, dynamically updating flight paths of multiple unmanned aerial vehicles under the condition of flight height multiplexing and change, and realizing multi-unmanned aerial vehicle dynamic concurrent delivery. And collision-free delivery is realized. The method is high in robustness and stability, excellent in expandability, low in calculation complexity and wide in application prospect.

The invention discloses a low-altitude air route risk situation abrupt change identification method and a related device, and relates to the field of air route risk situation abrupt change identification, and the method comprises the steps: constructing an adjacent matrix and a node topological feature matrix according to flight unit data and air route connection data in a low-altitude air route network, further constructing a low-altitude airway dynamic coupling model comprising the dynamic evolution equations of all the nodes; calculating dynamic response trajectories of the nodes under different disturbance intensities based on a dynamic evolution equation, and determining an average mutation point according to the dynamic response trajectories; simulating a mean value of node response under different low-altitude airway network disturbance conditions, and determining a disturbance abrupt change point of the node according to the mean value; the coupling contribution rate index of the nodes is determined according to the disturbance mutation points of the nodes and the average mutation points of the low-altitude air route network, the key nodes are identified according to the coupling contribution rate index of the nodes and the comprehensive influence score calculated according to the topological characteristic index, and accurate identification of the risk key nodes is achieved.

An attitude adjustment device (10) and an aircraft (20). The attitude adjustment device (10) is used for adjusting the attitude of the aircraft (20). The attitude adjustment device (10) comprises: a flow guide member (101), wherein the flow guide member (101) is provided with an air channel (1011), and the air channel (1011) is used for the passage of an airflow; and a regulation mechanism (102), wherein the regulation mechanism (102) can work in conjunction with the flow guide member (101) so that the regulation mechanism (102) can be used for regulating the magnitude of the airflow, and the magnitude of the airflow can be used for adjusting the attitude of the aircraft (20).

This invention relates to a multidimensional feedback-based interactive nebulizer inhalation system for children, comprising: a flow regulation component having a dosing state and an blocking state; a detection module for acquiring vital sign monitoring data; a feedback execution module including an interactive prompting unit and a drive unit; and a control module communicatively connected to the detection module and the feedback execution module. The control module is configured to execute the following processing flow: receiving vital sign monitoring data to assess airway safety risks and nebulization operation compliance respectively; when there is an abnormal airway safety risk, generating a collaborative intervention command: the command drive unit switches the flow regulation component to the blocking state and simultaneously controls the interactive prompting unit to output soothing interactive information; when there is no abnormal airway safety risk, controlling the interactive prompting unit to output interactive information for action correction or positive guidance based on the compliance assessment results.

The utility model relates to the technical field of infrared thermal imaging, and specifically discloses a purging type infrared thermal imager protection cabin. Comprising a protective cover which comprises an outer cabin, an inner cabin and a purging air channel formed between the outer cabin and the inner cabin; one end of the protective cover is also provided with an air hole communicated with the outside, and the air hole is communicated with the purging air passage; the thermal imager is arranged in the protective cover, and a lens of the thermal imager is arranged at one end, provided with the air hole, of the protective cover; the gas supply assembly is communicated with the purging gas channel and the inner cabin through a connector and conveys gas into the purging gas channel for circulation; wherein the air is sprayed out through the air holes, so that active blowing of the lens area is realized. Through the design of the air holes and the purging grooves, it is ensured that airflow can ensure the purging uniformity, and the phenomenon of local overheating is effectively avoided, so that a more stable and safer working environment is provided for the thermal imager.