140 results about "Air safety" patented technology

Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concentration of airborne biologicals. Sensors based on regenerative collection surfaces may be incorporated in many networks for applications such as building automation.

The invention discloses an air safety monitoring method for an unmanned aerial vehicle. The method comprises the following steps that: firstly, an enterprise having the unmanned aerial vehicle applies for air route registration to a flight range management department; secondly, the flight range management department transmits a register account number and a password to the enterprise after approving the application; thirdly, the enterprise logs on an air route management server by using the applied account number and password to apply for a required flight range and the longitude and the latitude of a route; fourthly, the air route management server sends a license file to the enterprise after verification; fifthly, the enterprise receives the license file, makes confirmation and installs the license file in a control box of the unmanned aerial vehicle; and finally, the unmanned aerial vehicle acquires current data of the longitude and the latitude during a flying process through a global positioning system installed on the unmanned aerial vehicle, compares the current data with the longitude and the latitude applied in the license file, sends an alarm signal in case of deviation and returns to an original place. Due to the adoption of the method, the flight path of the unmanned aerial vehicle can be managed, monitored and controlled.

The invention discloses a farmland operation area boundary point and unmanned helicopter position point drawing method. The method includes the steps of determining an appropriate coordinate transformation system according to longitude and latitude information uploaded to a mobile device through a GPS module and a handheld GPS device which are carried by an unmanned helicopter, correctly expressing a farmland operation area boundary point, represented by the longitude transmitted by the handheld GPS device and the latitude transmitted by the handheld GPS device, as a coordinate point in a two-dimensional rectangular coordinate system with scales, drawing a farmland operation area boundary on a screen display program of the mobile device, converting the point represented by the longitude transmitted by the handheld GPS device of the unmanned helicopter and the latitude transmitted by the handheld GPS device of the unmanned helicopter into the coordinate point in the two-dimensional rectangular coordinate system where a farmland operation area is located, and drawing the real-time flight path of the unmanned helicopter. The farmland operation area boundary drawn through the method is extremely high in accuracy, good in instantaneity and high in reliability; the operation difficulty of an unmanned helicopter controller is greatly lowered, the air safety coefficient of the unmanned helicopter is increased, and the mechanical work efficiency is improved.

The invention relates to a real-time extracting method of satellite remote sensing sea fog characteristic quantity, daytime EOS / MODIS data is used and is read into a raw data file PDS, the difference of sea fog and low cloud on a spectral characteristic is analyzed in two steps that: firstly, the sea fog and the low cloud are separated, and then, the sea fog characteristic quantity is extracted, namely that a three-level identifying method is adopted to orderly filter high cloud, middle cloud, low cloud, a cloudless water body, a solar flare water body, a cloud shadow area, a sea ice and a snow cover, the sea fog detection is established, a sea fog distributing area is obtained, a file which comprises a sea fog detecting result is generated, then, the sea fog characteristic quantity of the optical thickness of a fog area, the effective radius of fog and a liquid water path are calculated according to a formula, and pictures are displayed on a microcomputer. The method not only extracts the sea fog characteristic quantity, but also can calculate the visibility and the fog top height of the fog, consequently, the quantification detection of the sea fog is realized, and a dissipation forecast of the sea fog supplies meteorological information for air safety above the sea, maritime traffic and coastal airport operation.

The invention discloses a method for monitoring exhaust temperature of an aircraft engine. The method comprises following steps: (1) acquiring and storing data of exhaust temperature of the engine; (2) extracting historical data of the exhaust temperature of the engine in an appointed time interval, and building a multi-dimensional training sample set and a testing sample set which are used for building and testing prediction models and building model input for prediction; (3) building a prediction model on the basis of a neural network in a convolution sum discrete process, utilizing a Levenberg-Marquardt algorithm to train the prediction model and testing and storing the prediction model; and (4) utilizing the prediction model to predict the exhaust temperature of the engine and applying the prediction model to monitoring states of the aircraft engine. The method is favorable for increasing the state monitoring and repair guarantee level of the aircraft engine, and accordingly achieves the purpose of guaranteeing air safety.

Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concentration of airborne biologicals. Sensors based on regenerative collection surfaces may be incorporated in many networks for applications such as building automation.

The invention relates to the technical field of invading foreign body detection and laser scanning, in particular to a runway pavement detection device and method based on a laser scanning technology, wherein the runway pavement detection device is erected on the edge of a runway. According to the problems existing in the prior art, the runway pavement detection device erected on the edge of the runway and the runway pavement detection method can be used for detecting invaders existing on the airfield runway and threatening aviation safety, and efficient and accuracy detection can be achieved. The runway pavement detection device comprises at least one laser scanner, at least one camera and a processor. The runway pavement detection device and method are applied to the field of detection of airfield runway planar invaders.

The invention belongs to the field of composite forming, in particular to a composite reinforcing rib wall panel forming tool. For the conventional forming of a composite reinforcing rib wall panel, for example, the traditional beams and skin are singly formed and then bonded, the bonding surfaces are easy to generate an interfacial effect, the beams and skin are easily debonded under great load, the air safety is affected, and therefore the integral forming and curing of the wall panel is needed. In the integral forming process of the composite reinforcing rib wall panel, the method solves the problems of reinforcing rib positioning and forming pressurization and improves the forming quality and precision of the upper surfaces of parts.

The invention discloses a system for assisting airport runway perambulation inspection, comprising a movement module, an airport surface detection module, a launching / landing early warning module and a monitoring module, wherein the movement module is used for carrying out actions under the control of the monitoring module; the airport surface detection module is arranged on the movement module and sends the acquired data to the monitoring module; and the launching / landing early warning module is arranged on the movement module and sends the acquired data to the monitoring module. The system disclosed by the invention can overcome the limitations of influence on air safety and low working efficiency in the conventional runway perambulation inspection, and realizes automatic perambulation inspection without temporarily suspending the launching and landing of airplanes no matter what traffic density and visibility the airport is in.

A high pressure air safety valve is applied to pipeline systems in mechanical industry. The whole device of the safety valve comprises a regulating screw cap, a valve body, a spring, a spring seat, a lock nut, a valve clack, a regulating nut, a valve seat, a round pin and a sealing washer. The valve body is installed on the valve seat; the valve body and the valve seat are fixed tightly through the round pin; the sealing washer is installed on the valve clack; both the sealing washer and the valve clack are installed on the valve seat; the lock nut and the regulating nut are installed on the valve body; the spring seat and the spring are installed on the valve body; and the regulating screw cap is installed on the upper part of the valve body. The operating principle of the safety valve is that when medium pressure in a system rises abnormally and reaches up to the opening pressure, a valve gate is automatically opened; and the medium discharges pressure outwards through eight small holes all around. When the pressure decreases to the reseating pressure, the valve gate is automatically closed. The safety valve has the advantages of advanced design, reasonable structure, safety, energy conservation, prolonged service life and good sealing effect. The safety valve can ensure safe operation of pressure pipeline systems.

The invention relates to the design field of airplanes, and provides an airplane pod suspension cable overload cutting device. A suspension cable fixing support is fixed on a shell, a suspension cable penetrates through a groove formed in the suspension cable fixing support, a plug clamps the suspension cable on the suspension cable fixing support, and a cutter head is fixed on a pulling force arm. The suspension cable is arranged in a fork lug of the pulling force arm, a bolt which penetrates through a guide wheel is fixed on the fork lug, a spring and the pulling force arm sequentially penetrate through a guide rod of a spring support which is fixed on the shell, a cutter base is arranged on the suspension cable fixing support, four locating guide wheels are arranged beside a shell suspension cable route, and a safety pin is inserted in the groove of the plug through a hole formed in a shell cover. According to the airplane pod suspension cable overload cutting device, the pod suspension cable is automatically cut off as occasion requires, a pod is eliminated, and air safety of an airplane is guaranteed.

The invention belongs to the airplane aerodynamic computation technology, and relates to a method for computing a control surface hinge moment coefficient when an airplane incidence angle, a sideslip angle and a rudder deflection angle are all zero degree. The method for computing the control surface hinge moment coefficient is characterized by comprising the steps of determining computation conditions, computing the relative curvature degree of a mean camber line (3), computing the zero-lift incidence angle, computing a zero-lift hinge pitching moment, and computing the control surface hinge moment coefficient when the airplane incidence angle, the sideslip angle and the rudder deflection angle are all the zero degree. According to the method, the computation accuracy of the hinge moment coefficient obtained when the airplane incidence angle, the sideslip angle and the rudder deflection angle are all the zero degree is improved, and the airplane control performance and the air safety are ensured.

The present invention relates to a method for detecting and grading the state and the evolution of wake turbulence caused by an aircraft, on the basis of the radar signals reflected by this turbulence, these signals being analyzed through analysis cells of given dimension in terms of distance and bearing. This method mainly comprises:a first preliminary detection step proper for detecting and locating turbulence in a cell,a second step for determining the strength of the detected turbulence,a third step for determining the age of the detected turbulence as well as the geometric parameters which characterize it.The method according to the invention advantageously makes it possible to detect wake turbulence and to determine at one and the same time the position and the strength of the latter as well as its stage of evolution.The invention applies in particular to the field of air traffic control and air safety in general.

The invention provides a method and system for managing a wireless communication device under a flight condition. The system comprises: a reading module used for reading the accelerated speed, detected by an acceleration sensor of a wireless communication device, of the wireless communication device in real time; a starting module used for starting an air pressure detection gauge for detecting the air pressure in an airplane cabin when the read accelerated speed of the wireless communication device surpasses a first preset value; a judgment module used for judging whether the accelerated speed of the wireless communication device surpasses a second preset value and judging whether the pressure in the airplane cabin changes quickly and remains above a preset air pressure value stably; and a closing module used for closing the wireless communication function of the wireless communication device. With the method and system, passengers are reminded to open or close the communication function of the wireless communication devices in time when an airplane takes off or is landed, thereby guaranteeing air safety of the airplane more effectively.

The invention discloses an automatic airfield runway glue removal system which comprises a working platform, two fans, two first direct current motors, a control module, a communication module, a standby battery, a second direct current motor, four steering shaft supporting pieces, two third direct current motors, two driving wheel supporting columns, two driving wheels, two steering wheels, a steering wheel supporting column, a resistance wire heating plate, a resistance wire heating plate fixing piece, a guide rail, two lead screw supporting pieces, a servo motor, a lead screw, four laser heads, a laser head mounting platform, a first high-resolution camera and a second high-resolution camera. The automatic airfield runway glue removal system disclosed by the invention has the advantages that the detection and glue removal efficiency can be greatly improved, false detection or missing detection caused by the environment or man-made reasons is avoided, the labor intensity of the airport staff can be reduced, and the guarantee efficiency of domestic airports is improved. Moreover, the system can be remotely controlled by the staff or can automatically work and has excellent flexibility, runway glue removal operation is performed by high-temperature airflow and laser together, the cleaning effect is obviously improved, and the air safety level is improved.

The invention provides an air belt device for a vehicle capable of improving occupant restraining performance by expanding an expansion part larger in the vehicle vertical direction at a position opposed to a head part of an occupant in the vehicle widthwise direction and absorbing inertial force in the vehicle widthwise direction of the head part by the expansion part in side surface collision while securing usability of a webbing for occupant restraint in normal use. A belt guide 20 provided on an inclined part 22 (shoulder part) of a seat back 26 on a seat 12 for the vehicle can deploy in a direction separated from the head part 14H up to a specified angle to be limited by stopper parts 40S, 42S around a fulcrum 36 positioned on the outside in the vehicle widthwise direction as its center from a normal state to guide the webbing 16 for occupant restraint when the expansion part 18 expands. Consequently, it is possible to expand the expansion part 18 to an upward position opposed to the head part 14H in the vehicle widthwise direction by regulating an expanding shape of the expansion part 18.

A device and method of use for protection of the facial area including but not limited to the eyes, nose, mouth, and ears through the use of airflow to create a protective barrier for this area is disclosed. In one embodiment, the device for providing protection of the facial area through the use of airflow to create a protective barrier for this area is comprised of an air delivery member, a frame member, and an air nozzle member. In another embodiment, the device is also comprised of an air supply member. In another embodiment, the device is also comprised of a control member. In yet another embodiment, the air nozzle member is comprised of one or more air nozzles that may be of varying nozzle shapes to control the air barrier produced. The air nozzle member may also be positioned in various directions and the exit velocity of the air leaving the nozzle controlled via the control member. Lastly, in another embodiment the device may also be comprised of a lens member.

The invention discloses a movable biosafety type exhaust air efficient filtering device which comprises a box body, a filter, a scanning leak detection device, a circulating disinfection device, a draught fan and a control system. A control cavity and three sealing cavities are sequentially arranged in the box body from top to bottom. The control system is arranged in the control cavity, and the draught fan is electrically connected with the control system. The sealing cavities sequentially comprise a draught fan cavity, a leak detection cavity and a filtering cavity from top to bottom and arecorrespondingly provided with the draught fan, the scanning leak detection device and the filter. The circulating disinfection device communicates with the draught fan cavity and the filtering cavitythrough hoses. The draught fan cavity is provided with an air outlet, the filtering cavity is provided with an air inlet, and the filter communicates with the leak detection cavity. The draught fan communicates with the air outlet and the leak detection cavity. According to the movable biosafety type exhaust air efficient filtering device, through the filter, the scanning leak detection device, the circulating disinfection device, the draught fan and the control system, in-situ leak detection and disinfection, filter resistance detection and exhaust air rate detection functions of the filterare achieved, and the negative pressure exhaust air safety performance meeting the safety standard is achieved.

The invention discloses an air plane capable of emergently solving air crash and an emergency treatment method. A plurality of hooks are arranged at the lower margin of cockpit and passenger cabin, corresponding necks are arranged at the upper margin of belly, a separation parachute is open, a locating locking pin is started, the separation parachute drives the locating locking pin to be separated from the air plane body, a drag parachute is open, speed difference is utilized to drive the air plane entire passenger cabin and cockpit to shift backward, so that the hook is separated from the neck on the belly to be fixed, safety parachutes in cockpit and at the top of each passenger cabin are open, the safety parachute drags out the cockpit and the passenger cabin from the neck on the belly to be separated from the belly, and the cockpit and each passenger cabin are respectively safely landed under the action of respective safety parachute. By adopting the technical scheme, lives of the whole pilots and all the passengers are effectively rescued, accident cause is found as soon as possible, air safety is further improved, and the fact that almost no one is survived after crash becomes history.

An air safety valve with a drying cylinder structure comprises a valve seat, a cylindrical valve rod and a valve core, wherein a connecting end of the valve seat is provided with a limiting block, the valve core is installed on a valve seat insert connected onto the valve seat through threads, and the center in the valve core is fixedly connected with the cylindrical valve rod. The tail end of the cylindrical valve rod is provided with a pressure adjusting valve block, a pressure spring is sleeved outside the cylindrical valve rod, a baffle block is arranged on the inner wall of the valve seat at the front end of the pressure adjusting valve block, and a triangular air hole is arranged on the lateral wall of the valve seat and located on the inner side of the pressure adjusting valve block. The air safety valve with the drying cylinder structure has the advantages that the pretightening force of the pressure spring at the position of the valve rod is adjustable, and a work pressure interval of the whole safety vale can be adjusted through adjustment of the pretightening force of the pressure spring; the triangular air hole enables the safety valve to release pressure more quickly with bigger pressure in the pressure releasing process, and pressure balance in a drying cylinder controlled by the safety valve can be quickly guaranteed.

The invention provides an urban epidemic prevention and control system with air safety barriers and a method. The urban epidemic prevention and control system with the air safety barriers comprises a plurality of air safety barriers, a monitoring subcenter, and a monitoring alarm center, wherein the plurality of air safety barriers are arranged in an indoor space of an urban building and are used for acquiring indoor air quality data and sterilizing and purifying indoor air; the monitoring subcenter is connected with the plurality of air safety barriers and is used for controlling working states of the air safety barriers according to the air quality data; and the monitoring alarm center is connected with the monitoring subcenter and is used for analyzing the air quality data sent by the monitoring subcenter and generating a corresponding alarm signal when one or more pieces of air quality data exceed a preset value, wherein the air quality data comprises the concentration of suspended microorganisms and the concentration of volatile organic compounds. The technical scheme in the invention can timely judge viruses in the air and the pollution condition, and can prevent large-scale infection of epidemics.

The invention discloses a raindrop spectrum acquisition method and device based on a coherent Doppler laser radar. A real raindrop reflectivity spectrum is obtained by adopting an iterative deconvolution method, and a rainfall reflectivity spectrum can be solved only by performing deconvolution operation once by using an aerosol signal model considering a window effect and constructing an aerosol signal spectrum S 'air (v); meanwhile, according to the method, the theoretical backscattering cross section of the raindrops to the laser band is creatively applied to the coherent Doppler laser radar to obtain raindrop spectrum distribution, and the accuracy and robustness of raindrop spectrum calculation are improved. On the basis that only one coherent Doppler laser radar is used, the rainfall raindrop spectrum distribution is obtained according to the laser radar power spectrum. The method is of great significance to atmospheric meteorological modes, aviation safety and the like.

The invention discloses a multi-layer net shaped staggered rib plate type hydrogen storage reaction device. The device is of a three-dimensional structure and comprises a housing, wherein the upper end and the lower end of the housing are correspondingly connected to an upper sealing head and a lower sealing head through flange structures in a sealing manner; a heat exchanging pipe is arranged inthe center of the housing; a plurality of layers of circumferential rib plates are sequentially arranged at the outer part of the heat exchanging pipe; a radial rib plate is arranged between two adjacent layers of circumferential rib plates; a reaction bed layer is arranged in each of the spaces formed by the radial rib plates and the circumferential rib plates; a tubular plate is arranged betweenthe upper sealing head and the housing, and an air phase buffering chamber is formed between the tubular plate and the upper sealing head; a heat exchanging liquid inlet which communicates with the heat exchanging pipe, an air phase inlet which is connected to the air phase buffering chamber and an air safety valve are arranged on the upper sealing head. The device is applicable to high reactionheat effect chemical reaction such as dehydrogenation or hydrogenation of metal hydride. The device has the advantages of being high in heat transfer rate, simple to operate, compact in structure, andconvenient to maintain.

The invention relates to the technical field of automobiles, and in particular to an automobile interior air safety detection system for the automobile. An active control unit is capable of displaying information collected by a data storage unit through a signal display unit, and the active control unit is capable of controlling an automobile indoor air circulation device and an automobile window glass control device through an execution unit, so that the safety of air in the automobile interior is effectively improved; the signal display unit displays the control result through a red warning light and an instrument panel; an automatic detection device is capable of automatically detecting the data storage unit, the active control unit and the signal display unit, so that the problem of a system is effectively prevented; and the use of the system effectively reduces harm on people of dust, CO2 and CO of the automobile interior and increases the safety of automobile using. In addition, the automobile interior air safety detection system for the automobile is reasonable in structural design, convenient and reliable to use, and suitable for promotion and using.

The invention provides a ceiling-type air purification device which comprises a shell, wherein an installation limit edge is formed at the exterior of the shell; a panel is arranged below the installation limit edge; the outer side of the panel is provided with an air outlet; the shell is internally provided with an ion generator. The ceiling-type air purification device is characterized in that the middle of the panel is provided with a circulating air inlet; the circulating air inlet and the air outlet form a circulating air duct; the ion generator is arranged in a front channel of the air outlet, so as to ensure that ions can be blown out; the shell is internally provided with an underdraught air duct; the outlet of the underdraught air duct is communicated with the air outlet; the underdraught air inlet of the underdraught air duct is formed at the tail end of the shell. The ion purification device can be used for realizing rapid purification treatment. Compared with existing circulating air purification, the ion purification device has the advantages of better effect and wide application range. When being applied to the public, the ion purification device is capable of ensuring the air safety of public places and coping with emergent air pollution events.

The invention discloses a field channel safety monitoring system, which comprises a monitoring system, a communication module, a main control system and side lamps, and is characterized in that the monitoring system performs data interaction with the main control system through the communication module, and the monitoring system comprises an image acquisition module, a data transmission module, amonitoring central processing unit and a video recording module. The ringtone alarm module, the voice alarm module, the alarm branch module, the comparison module and the judgment module are matched for use. Whether an accident scene is triggered by a non-life body or a life body can be accurately judged so as to judge whether the field road surface is damaged or not, whether foreign objects existon the field road surface or not, whether individual lamplight faults exist or not and whether bird situations exist in the air of a field area or not , and different processing personnel are dispatched according to different alarm sounds. Therefore, accidents can be accurately handled, the handling efficiency is improved, the handling effect is good, and the aviation safety is improved.

The invention belongs to the field of plane airfoil deicing, and particularly relates to a compound deicing fluid and gasbag anti-icing system. The compound deicing fluid and gasbag anti-icing systemcomprises a controller (1), a deicing fluid tank (2), a pump machine (3) and a gasbag deicing assembly (4), wherein the gasbag deicing assembly (4) comprises a deicing gasbag (5) and an air flow distribution device (6), step-shaped sunken parts are arranged at the transition portion of both a deicing fluid spraying area and a gasbag deicing area of the upper surface and the lower surface a wing face front edge (7), and several micro holes (8) are formed around the wing face front edge and the side faces of the step-shaped sunken parts. By means of the compound deicing fluid and gasbag anti-icing system, through a compound anti-icing mode, the wing face deicing efficiency is improved, and the air safety margin under an icing environment is increased.

A breathable air safety system and method having an air storage sub-system is disclosed. In one embodiment, a safety system of a structure includes a supply unit of a building structure to facilitate delivery of breathable air from a source of compressed air to an air distribution system of the building structure, a distribution structure that is compatible with use with compressed air that facilitates dissemination of the breathable air of the source of compressed air to multiple locations of the building structure, and an air storage sub-system to provide an additional supply of air to the building structure in addition to the source of compressed air.

Provided is a load mechanism for an aircraft anti-G tester. The load mechanism for the aircraft anti-G tester includes a rod, a counterweight block, a rings, bolts, a clamp collar, a circular nut, a support rod, a bearing, a shaft pin, a nut, a jacking rod, a hook and a weight; the counterweight block is fixed to the rear portion of the rod through the bolts, the support rod is mounted on the tailportion of the rod through the bearing and the shaft pin, the circular nut is connected with the support rod through the nut, the ring is arranged at the front end of the rod, the weight is hollow, and a screw plug is arranged on the weight and is hooked on the ring through the hook. According to the load mechanism for the aircraft anti-G tester, by using a lever principle, a loading process is conducted outside a finished product, and a lever amplification principle is adopted to reduce the size of the weight, so that the problem is solved that due to small and narrow space, loading cannot be carried out, and aircraft anti-G system tests can be conducted smoothly, working normality of an aircraft anti-G system is effectively verified, the test efficiency is improved, and air safety of aircrafts is ensured.

Systems and methods for managing the security of an aircraft with a view to ensuring the aeronautical safety thereof are provided. A method can include identifying one or more security anomalies as a function of one or more processes applied to records collected and / or received. Different objects are handled, notably security anomalies, qualified alerts, cyberattacks, etc. Reference data can be accumulated, consolidated and learned over time. The flight of an aircraft is compared to the knowledge base thus constituted and enriched. Developments describe the scope of avionics security, the use of flight phases, the triggering of comparisons, the granularity of the request system, data processing including heuristics, statistical analyses on an aircraft or a fleet of aircraft. Software and architectural aspects are described (centralized, decentralized or distributed processors).