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82 results about "Flight space" patented technology
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Tethered aerial system for data gathering
InactiveUS20130233964A1Increase horizontal rangeExtending flight spaceTethered aircraftActuated automaticallyLevel flightFlight vehicle
A tethered unmanned aerial vehicle (“UAV”) may be outfitted with a sensor payload for data gathering. The tethered UAV may be tethered to a ground station for constricting the flight space of the UAV while also providing the option for power delivery and / or bidirectional communications. The tethered UAV's flight path may be extended by introducing one or more secondary UAVs that cooperate to extend the horizontal flight path of a primary UAV. The ground station, which may be coupled with the tethered aerial vehicle, may comprise a listening switch configured to determine a condition of the tether such that the supply of power to the tether may be terminated when tether damage or a tether severance is detected.
Owner:AURORA FLIGHT SCI CORP
Navigation satellite autonomous navigation system and method based on X-ray pulsar
InactiveCN101038169AHigh precision autonomous navigationStable periodicityInstruments for comonautical navigationNavigation by astronomical meansFault toleranceInformation processing
A autonomous navigation system of a navigational satellite based on X radial pulse satellite includes: an X radial detector, an atomic clock group on the satellite, a planet of our solar system parameter database, an X radial pulsar module and a characteristic parameter database, a computer on the satellite, a strap-down inertial navigation system SINS and an autonomous navigation algorithm module library; in the autonomous navigation method, the X radial photons radiated from the pulsar are used as the input of the external information; the pulse arrival time TOA and the angular position information are obtained; data is processed through a autonomous navigation filter; and the navigational parameters such as the position, the speed, the time and the pose of the navigational satellite; the navigational telegraph text and the control command are generated independently, and the independent running of the navigational satellite is realized. The present invention has the advantages of providing a long time and a high degree of accuracy autonomous navigation, and providing the fault-tolerance capacity of the autonomous navigation information processing. The autonomous navigation system is also be adequate for the high degree of accuracy autonomous navigation of the near earth orbit, the deep space, the interplanetary flight space vehicle, the a celestial body lander without thickset atmosphere and the surface peripatetic machine.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
System and method for controlling unmanned aerial vehicle in flight space
InactiveUS20120215382A1Digital data processing detailsSpecial data processing applications3d imageFlight space
In a method for controlling an unmanned aerial vehicle (UAV) in a flight space using a computing device, at least one camera is installed in the flight space. The method sets a flight area of the UAV in the flight space, and stores geographic information of the flight area into a storage device. The method further controls each of the camera to capture a series of 3D images from the flight space, analyzes a current location of the UAV in the flight space according to the 3D images, and compares the current location with the geographic information of the flight area to determine whether the UAV flies out of the flight area. In addition, the method sends a warning message to a remote controller when the UAV flies out of the flight area, and controls the UAV to fly within the flight area using the remote controller.
Owner:HON HAI PRECISION IND CO LTD
Mass spectrometer
ActiveUS20050151076A1Quality improvementMass resolutionTime-of-flight spectrometersElectron/ion optical arrangementsMass analyzerStructural analysis
In the mass spectrometer of the present invention, a flight space is provided before the mass analyzer, and the flight space includes a loop orbit on which ions fly repeatedly. While ions fly on the loop orbit repeatedly, ion selecting electrodes placed on the loop orbit selects object ions having a specific mass to charge ratio in such a manner that, for a limited time period when the object ions are flying through the ion selecting electrodes, an appropriate voltage is applied to the ion selecting electrodes to make them continue to fly on the loop orbit, but otherwise to make or let other ions deflect from the loop orbit. If ions having various mass to charge ratios are introduced in the loop orbit almost at the same time, the object ions having the same mass to charge ratio continue to fly on the loop orbit in a band, but ions having mass to charge ratios different from that are separated from the object ions while flying on the loop orbit repeatedly. Even if the difference in the mass to charge ratio is small, the separation becomes large when the number of turns of the flight becomes large. After such a separation is adequately achieved, the ion selecting electrodes can select the object ions with high selectivity, or at high mass resolution. By adding dissociating means, fragment ions originated only from the selected object ions can be analyzed, which enables the identification and structural analysis of the sample at high accuracy.
Owner:SHIMADZU CORP
Design method of cooperative driving aircraft system and the system
ActiveCN105096662AIncrease application depthEfficient use ofProgramme controlRemote controlled aircraftJet aeroplaneManufacturing technology
Owner:陶文英
Tethered aerial systems for data gathering
InactiveUS20160144958A1Improve securityIncrease rangeTethered aircraftConvertible aircraftsLevel flightFlight vehicle
A tethered unmanned aerial vehicle (“UAV”) may be outfitted with a sensor payload for data gathering. The tethered UAV may be tethered to a ground station for constricting the flight space of the UAV while also providing the option for power delivery and / or bidirectional communications. The tethered UAV's flight path may be extended by introducing one or more secondary UAVs that cooperate to extend the horizontal flight path of a primary UAV. The ground station, which may be coupled with the tethered aerial vehicle, may comprise a listening switch configured to determine a condition of the tether such that the supply of power to the tether may be terminated when tether damage or a tether severance is detected.
Owner:AURORA FLIGHT SCI CORP
Unmanned aerial vehicle multi-distance obstacle avoidance method and obstacle avoidance system
ActiveCN108334103AFlight safetyMake up for deficienciesInternal combustion piston enginesPosition/course control in three dimensionsShortest distanceFlight vehicle
The invention relates to the technical field of aircrafts, and particularly provides an unmanned aerial vehicle multi-distance obstacle avoidance method and an obstacle avoidance system. According tothe invention, firstly, a flight path of the unmanned aerial vehicle is set. Secondly, the obstacle information on a plurality of distance levels in the flight space of the unmanned aerial vehicle isacquired. At the same time, the current flight state information of the unmanned aerial vehicle is acquired in real time. Thirdly, a flight obstacle avoidance plan is formulated according to the obstacle information and the current flight state information. Finally, the unmanned aerial vehicle performs the obstacle avoidance flight according to the flight obstacle avoidance plan. According to theinvention, a plurality of obstacle avoidance mechanisms are applied in parallel, wherein the predictive obstacle avoidance can be realized especially for large barriers such as buildings existing on flight paths, as well as moving barriers within the range of a moderate distance. The defects caused by purely relying on a short-distance obstacle avoidance mechanism are fully overcome.
Owner:GUANGZHOU EHANG INTELLIGENT TECH
Time of flight mass spectrometer
InactiveUS20050194528A1Improve accuracyReduce errorsTime-of-flight spectrometersMaterial analysis by electric/magnetic meansStart timeOrbit
A time of flight type mass spectrometer (TOF-MS) of the present invention includes: a flight space containing a loop orbit on which ions fly once or more than once; a flight controller for making ions of a same mass to charge ratio fly the loop orbit at several values of number of turns; a flight time measurer for measuring a length of flight time of the ions; and a processor for determining the mass to charge ratio of the ions based on a relationship between the value of number of turns and the length of flight time of the ions. The speed of ions flying a loop orbit depends on their mass to charge ratios. For ions of the same mass to charge ratio, the difference between the lengths of flight time of the ions flying the loop orbit N turns and of the ions flying the loop orbit N+1 turns depends on the speed of the ions, so that the difference depends on the mass to charge ratio of the ions. The difference in the length of flight time is unrelated to the variation in the starting time (jitter), variation in the detection timing (jitter), etc, so that the value of the mass to charge ratio can be precisely determined free from errors caused by such disturbing factors.
Owner:SHIMADZU CORP +1
Mass spectrometer
ActiveUS7211792B2Improve quality resolutionMass rangeTime-of-flight spectrometersElectron/ion optical arrangementsStructural analysisMass analyzer
In the mass spectrometer of the present invention, a flight space is provided before the mass analyzer, and the flight space includes a loop orbit on which ions fly repeatedly. While ions fly on the loop orbit repeatedly, ion selecting electrodes placed on the loop orbit selects object ions having a specific mass to charge ratio in such a manner that, for a limited time period when the object ions are flying through the ion selecting electrodes, an appropriate voltage is applied to the ion selecting electrodes to make them continue to fly on the loop orbit, but otherwise to make or let other ions deflect from the loop orbit. If ions having various mass to charge ratios are introduced in the loop orbit almost at the same time, the object ions having the same mass to charge ratio continue to fly on the loop orbit in a band, but ions having mass to charge ratios different from that are separated from the object ions while flying on the loop orbit repeatedly. Even if the difference in the mass to charge ratio is small, the separation becomes large when the number of turns of the flight becomes large. After such a separation is adequately achieved, the ion selecting electrodes can select the object ions with high selectivity, or at high mass resolution. By adding dissociating means, fragment ions originated only from the selected object ions can be analyzed, which enables the identification and structural analysis of the sample at high accuracy.
Owner:SHIMADZU CORP
Flight data caching method and system
InactiveCN105630982AEfficient acquisitionUniform accuracyDatabase updatingSpecial data processing applicationsData accessComputer science
The embodiment of the invention discloses a flight data caching method and system. The flight data caching method comprises the steps of system parameter configuration, hierarchical caching of flight data, hierarchical query of cached data, cached data updating and cache self-inspection. The flight data caching method and the flight data caching system efficiently obtain flight space data under the condition of high accuracy rate, achieve the unification of unmanaged airline data access accuracy and efficiency, effectively meet the flight query demands of users to unmanaged airlines, also improve the query response time, greatly decrease access to unmanaged airline servers of a flight query system and reduce the pressure of the servers of the two parties.
Owner:TRAVELSKY
Plant cultivation system under environmental condition of controlled ecological life support system
ActiveCN102349436ASolve Air CompositionAgriculture gas emission reductionGreenhouse cultivationPeristaltic pumpWater storage tank
The invention relates to a plant cultivation system, especially a plant cultivation system for an integrated test platform of a controlled ecological life support system under long-term manned flight space environmental conditions such as spaceports, extraterrestrial spacecrafts and planet bases. The plant cultivation system comprises a condensate water storage tank, a submersible pump, a control unit assembly, an acid liquid storage tank, an alkali liquid storage tank, a mother solution A storage tank, a mother solution B storage tank, a mother solution C storage tank, a four-channel peristaltic pump, a single-channel peristaltic pump, a nutrient solution storage tank, a sensor assembly, a centrifugal pump, a manual adjusting valve assembly, an illumination system, a plant cultivation bed assembly, a nutrient solution collection tank and the like. Under the monitoring control of the control unit assembly, the preparation of the nutrient solution required for cultivating the plant is finished in the condensate water storage tank, the acid liquid storage tank, the alkali liquid storage tank, the mother solution A storage tank, the mother solution B storage tank and the mother solution C storage tank. The nutrient solution storage tank, the centrifugal pump, the manual adjusting valve assembly, the illuminating system, the plant cultivation bed assembly, the nutrient solution collection tank and the centrifugal pump form a nutrient solution delivering pipeline for the cultivation plant. The plant cultivation system disclosed by the invention is not only suitable for a controlled ecological life support technical test platform, but also can be used for providing a new technical path for high-efficiency intensive agricultural production.
Owner:SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
Target tracking based unmanned aerial vehicle obstacle avoidance method and device, and unmanned aerial vehicle
ActiveCN110262568AReal-time strain dynamic changesAvoid collisionTarget-seeking controlControllers with particular characteristicsFlight directionForward speed
Embodiments of the invention relate to the technical field of autonomous obstacle avoidance of unmanned aerial vehicles, and especially relate to a target tracking based unmanned aerial vehicle obstacle avoidance method and device, and an unmanned aerial vehicle. The method includes determining the expected forward speed of the unmanned aerial vehicle, wherein the expected forward speed is used for maintaining an initial horizontal distance between the unmanned aerial vehicle and a target; obtaining the depth map of an environment in front of the unmanned aerial vehicle, and determining a grid map which takes the unmanned aerial vehicle as a center according to the depth map; determining the optimal flight direction of the unmanned aerial vehicle and the minimum distance between the unmanned aerial vehicle and an obstacle according to the grid map; determining the optimal flight speed of the unmanned aerial vehicle according to the minimum distance, the expected forward speed and the optimal flight direction; and controlling the unmanned aerial vehicle to fly in the optimal flight direction with the optimal flight speed so as to avoid the obstacle of the environment in front of the unmanned aerial vehicle. Through the method, path planning can be performed on the whole flight space through the embodiments, and the accuracy of autonomous obstacle avoidance during target tracking can be enhanced.
Owner:SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
Industrial UAV management and control system and method
InactiveCN106710315ASolve management problemsRealize real-time monitoringAircraft traffic controlFlight heightControl power
The invention discloses an industrial UAV management and control system and an industrial UAV management and control method. The industrial UAV management and control system comprises flight control boxes, a ground station, an industrial air traffic control platform, a national air traffic control platform and a management and control client. The industrial air traffic control platform declares fixed task airspace to the national air traffic control platform, limited information of a UAV such as flight airspace and flight height is prestored while the UAV is registered in the flight control boxes after successful declaration, thus the UAV can fly without declaration in the approved airspace, and the flight space is automatically limited; and the UAV needs to declare to the industrial air traffic control platform and even the national air traffic control platform by utilizing the ground station when entering unapproved airspace. The national air traffic control platform grasps geological positions of all flight control boxes and the ultimate control power, and can cope with emergencies. The industrial UAV management and control system and the industrial UAV management and control method aim at industrial-grade UAVs in all industries, allow state institutions to delegate part of management and control power to departments of all industries, divide clear responsibility regions, omit the tedious fixed task region takeoff declaration, and standardize the airspace management while facilitating the usage of the UAV.
Owner:广州激速智能航空科技有限公司
Mass spectrometer
ActiveUS20050077461A1Reduce decreaseLow costTime-of-flight spectrometersElectron/ion optical arrangementsOrbitMass spectrometric
A mass spectrometer includes a flight control device for allowing ions from an ion source to repeatedly fly along an orbit in a flight space for predetermined times; a detecting device for detecting the ions after the ions repeatedly fly along the orbit for the predetermined times; and a data processing device for starting collection of ion strength data detected by the detecting device. The ion strength data is obtained during the flight of the ions along the orbit, or when the ions are headed toward the detecting device after departing from the orbit, or when one of the above situations is estimated.
Owner:SHIMADZU CORP
Control method and device for unmanned aerial vehicle, and prompting method and device for barrier
ActiveCN108521807AKeep abreast of flight statusGood Obstacle PromptImage enhancementImage analysisInteraction deviceUncrewed vehicle
The present invention provides a control method and device for an unmanned aerial vehicle, and a prompting method and device for a barrier. The control method comprises the steps of: obtaining depth data of barriers (205, 206) in a flight space, determining the information of the barriers triggering the operation of barrier avoidance according to the depth data, sending the barrier information tothe control terminal (204) of the unmanned aerial vehicle, especially, determining the information of the barriers triggering the operation of barrier avoidance according to the depth data, sending the information of the barriers to the control terminal, mapping the information of the barriers to a real-time image displayed by an interaction device when the control terminal receives the information of the barriers triggering the operation of the barrier avoidance so as to allow users to timely know that the unmanned aerial vehicle performs barrier avoidance operation at present when the unmanned aerial vehicle triggers the operation of the barrier avoidance, and so as not to allow the users to know that the unmanned aerial vehicle itself has faults by mistakes to allow the users to timelyknow the flight state of the unmanned aerial vehicle at present.
Owner:DJI BAIWANG TECH CO LTD
Air vehicle with folding arms
Owner:林日壮
Time of flight mass spectrometer
InactiveUS7361889B2Efficient executionImprove accuracyTime-of-flight spectrometersIsotope separationTime-of-flight mass spectrometryPeak value
Owner:SHIMADZU CORP
Time of flight mass spectrometer
InactiveUS20060219890A1Efficient executionImprove accuracyParticle separator tubesIsotope separationTime-of-flight mass spectrometryMass analyzer
The present invention relates to a time of flight mass spectrometer (TOFMS) having a flight space in which ions to be analyzed repeatedly fly in a loop orbit or reciprocal path. In an example of the present invention, the TOFMS carries out two rounds of measurement for one sample under two conditions differing in the effective flight distance of the ions to create two flight time spectrums. The data processor of the TOFMS compares the central points of the peaks in the two spectrums to identify peaks that have resulted from the same kind of ion (Step S3). If any peak is found to be unidentifiable (“No” in Step S4), the data processor examines the similarity of the peak shapes (e.g. half-value width) to identify peaks that have resulted from the same kind of ion (Step S5). After the correspondence of all the peaks have been determined, the data processor calculates the approximate mass to charge ratio of each ion from the difference in flight time (Step S6) and determines the number of turns of the ion based on the approximation (Step S7). Finally, it calculates the exact mass to charge ratio, using the number of turns and the flight time (Step S8). Thus, even if the sample contains many components and the spectrums accordingly have many peaks mixed together, the TOFMS can identify all the peaks.
Owner:SHIMADZU CORP
Return flight control system for unmanned plane cluster
InactiveCN107943086AQuick returnQuick and safe returnPosition/course control in three dimensionsControl systemComputer module
The invention relates to a return flight control system for an unmanned plane cluster, and the unmanned plane cluster comprises N unmanned planes, wherein the N unmanned planes are located in a hovering flight space. The system comprises a centralized control, and each of the N unmanned plane comprises a return flight control module, a first communication module, a second communication module, a controller, a switching module, a main battery and a standby power supply, wherein the return flight control module comprises a distance detection unit, an electric quantity detection unit, a comparison judgment unit, and an adjustment unit. Each adjustment unit is used for adjusting the return flight mode or adjusting a return flight destination, and each controller can switch the power supply mode between the main power supply and the standby power supply through the corresponding switching module according to a received signal of the corresponding return flight control module. The system cancontrol the return flight efficiency of a large unmanned plane cluster, achieves the real-time adjustment of the return flight strategy according to the remaining capacity of the battery of the unmanned plane, can reduce the restrictions on the area of a return flight place during the return flight of a large number of unmanned planes, reduces the cluster control cost, and saves the manpower costof the return flight cluster control.
Owner:合肥灵猫传媒有限公司
Time of flight mass spectrometer
InactiveUS7482583B2Increase distanceLittle strengthIsotope separationStatic spectrometersTime-of-flight mass spectrometryMagnetic poles
In a time of flight mass spectrometer (TOFMS) having a flight space in which ions fly in a loop orbit formed by a plurality of electric sector fields, the present invention provides a simple structure that creates a spiral path by deflecting the ions in the axial direction of the electric fields at every turn of the ions. In a mode of the present invention, the TOFMS has cylindrical electrodes 11 and 12 for creating electric sector fields E1 and E2, between which a parallel pair of planer magnetic poles 15a and 15b are provided. The planer magnetic poles 15a and 15b create a deflecting magnetic field B1 for shifting the ions in the axial direction (Y-direction) of the electric sector fields. The ions experience a Lorenz force once every turn when they pass through the deflecting magnetic field B1. This construction uses only one pair of magnetic poles facing each other across the ion path P to deflect every ion irrespective of its number of turns. There is no need to provide one deflector for each turn of the ions, as in the case of conventional TOFMSs.
Owner:SHIMADZU CORP
Box type freight unmanned aerial vehicle, matching system thereof and application
PendingCN107444643APackage structure is simpleQuick dockingRemote controlled aircraftLogisticsAviationManufacturing technology
The invention discloses a box type freight unmanned aerial vehicle, a matching system thereof and application. unmanned aerial vehicle freight, a standard cargo box generally adopted by cities or a national standard tricycle express distribution mode are combined, the box type freight unmanned aerial vehicle covers technologies such as cargo box standard, cargo bin structures, unmanned aerial vehicle navigation and flight control which are suitable for high attendance rate and low altitude flight, low altitude links and navigation monitoring systems and updating and development of a whole industry value chain such as corresponding airworthiness standard and authorized regulations, flight space managing regulations, operator training methods, unmanned aerial vehicle system design and manufacturing technology, flight application and business models. Design of box type freight of an unmanned aerial vehicle adopts carriage national standard of an express tricycle, express cargo automatic sorting engineering matching is facilitated, one-stop automatic sorting and box dividing transportation are achieved, a combined transport mode of air freight and urban express is established, time and cost of airport loading and unloading links are reduced, and development of automatic equipment of express delivery industry is promoted.
Owner:陶文英
Time of flight mass spectrometer
InactiveUS20070114383A1Avoid spreadingImprove the level ofIsotope separationStatic spectrometersTime-of-flight mass spectrometryMagnetic poles
In a time of flight mass spectrometer (TOFMS) having a flight space in which ions fly in a loop orbit formed by a plurality of electric sector fields, the present invention provides a simple structure that creates a spiral path by deflecting the ions in the axial direction of the electric fields at every turn of the ions. In a mode of the present invention, the TOFMS has cylindrical electrodes 11 and 12 for creating electric sector fields E1 and E2, between which a parallel pair of planer magnetic poles 15a and 15b are provided. The planer magnetic poles 15a and 15b create a deflecting magnetic field B1 for shifting the ions in the axial direction (Y-direction) of the electric sector fields. The ions experience a Lorenz force once every turn when they pass through the deflecting magnetic field B1. This construction uses only one pair of magnetic poles facing each other across the ion path P to deflect every ion irrespective of its number of turns. There is no need to provide one deflector for each turn of the ions, as in the case of conventional TOFMSs.
Owner:SHIMADZU CORP
Unmanned aerial vehicle track planning method based on particle swarm and PRM algorithm
ActiveCN109683630APath search increasedIncrease the amount of mining pointsPosition/course control in three dimensionsTerrainRadar
The invention provides an unmanned aerial vehicle track planning method based on a particle swarm and a PRM algorithm, which comprises the following steps of: randomly collecting points in an unmannedaerial vehicle flight space, and constructing a probability map by using a PRM method according to obstacle information such as a no-flight area, a radar area and the like in the environment, converting the planning problem of a continuous space into a planning problem of a topological space, determining the position of a source point and the position of a target point according to the position of the unmanned aerial vehicle and the assigned task position, taking the distance of the unmanned aerial vehicle from the source point to the target point as an optimization target function, accordingto the characteristics of an unmanned aerial vehicle flight path planning model, coding a distribution scheme, solving the problem by using a particle swarm algorithm, obtaining a shortest flight path in a probability map, and by increasing the sampling point quantity near an obstacle in the sampling process, the path search of the algorithm in a narrow channel is strengthened, and the algorithmis more suitable for a complex terrain.
Owner:NANJING UNIV OF POSTS & TELECOMM
Apparatus and method for sending SOS in vehicle engaged with uninhabited aerial vehicle
A method of emergency handling is provided for a vehicle engaged with an uninhabited aerial vehicle (UAV). The method can include collecting location information if emergency situation occurs. In emergency situations, the vehicle can determine whether an operation of uninhabited aerial vehicle (UAV) is allowed based on the location information and time information. After determining whether there is a flight space for the operation of uninhabited aerial vehicle (UAV) above a vehicle, the vehicle can transmit at least one of SOS and an emergency call into the uninhabited aerial vehicle (UAV).
Owner:HYUNDAI MOTOR CO LTD
Collision avoidance method of fixed wing unmanned plane multi-target collision avoidance system based on millimeter wave radar
The invention relates to a collision avoidance method of a fixed wing unmanned plane multi-target collision avoidance system based on a millimeter wave radar, belongs to the signal processing field and solves a fixed-wing unmanned plane multi-target collision avoidance problem of the millimeter wave radar. The method is characterized in that one path of emission signals is radiated to the flight space in front of an unmanned plane through an emitter, and frequency mixing of one path of emission signals and reflected echo signals is carried out; differential frequency signals after signal conditioning are inputted to an FPGA chip for AD sampling, and dual-channel IQ data acquired through AD sampling is sent to a DSP signal processing chip of a signal processing subsystem; digital signal processing on the dual-channel four-path IQ data after sampling is carried out through the DSP signal processing chip. The method is advantaged in that on the basis of the acquired data, distance and speed parameters of multi-target obstacles are acquired, and the collision possibility of the multi-target obstacles and the unmanned plane is detected.
Owner:DALIAN ROILAND SCI & TECH CO LTD
Unmanned aerial vehicle cluster homeward voyage control method
InactiveCN107977016AReduce restrictionsReduce the cost of cluster controlPosition/course control in three dimensionsUncrewed vehicleEngineering
Owner:合肥灵猫传媒有限公司
Flight space status caching method and system
ActiveCN106777311ASolve the loadReduce query loadWeb data indexingOffice automationData synchronizationTraffic capacity
The invention provides a flight space status caching method and system, wherein the method comprises: allowing an update server to receive flight space status change data, update and cache flight space status data according to the flight space status change data, and synchronize the flight space status change data to one or more query servers; allowing the query servers to receive the flight space status data, and update and cache the flight space status data saved in the query servers according to the flight space status data; allowing the query servers to query flight space status in the flight space status data cached on the query servers according to a user's request to query flight space status. Through the flight space status caching method and system, the problem that high-traffic full-real-time access causes high load to a flight status query system is solved, and query load of the flight status query system is lowered.
Owner:TRAVELSKY
Navigation satellite autonomous navigation system and method based on X-ray pulsar
InactiveCN100501331CHigh precision autonomous navigationStable periodicityInstruments for comonautical navigationNavigation by astronomical meansFault toleranceInformation processing
A autonomous navigation system of a navigational satellite based on X radial pulse satellite includes: an X radial detector, an atomic clock group on the satellite, a planet of our solar system parameter database, an X radial pulsar module and a characteristic parameter database, a computer on the satellite, a strap-down inertial navigation system SINS and an autonomous navigation algorithm module library; in the autonomous navigation method, the X radial photons radiated from the pulsar are used as the input of the external information; the pulse arrival time TOA and the angular position information are obtained; data is processed through a autonomous navigation filter; and the navigational parameters such as the position, the speed, the time and the pose of the navigational satellite; the navigational telegraph text and the control command are generated independently, and the independent running of the navigational satellite is realized. The present invention has the advantages of providing a long time and a high degree of accuracy autonomous navigation, and providing the fault-tolerance capacity of the autonomous navigation information processing. The autonomous navigation system is also be adequate for the high degree of accuracy autonomous navigation of the near earth orbit, the deep space, the interplanetary flight space vehicle, the a celestial body lander without thickset atmosphere and the surface peripatetic machine.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Inter-satellite relative observation method used for satellite formation
InactiveCN106871890ABreak the misunderstandingAccurate and efficient continuous tracking observationNavigation by astronomical meansNatural satelliteSystems analysis
The invention discloses an inter-satellite relative observation method used for satellite formation, and belongs to the technical field of satellite formation flight space measuring. According to the inter-satellite relative observation method, a star sensor is arranged on an observation satellite; observation conditions of the star sensor are provided, an observed satellite is taken as the relative azimuth measurement reference source of the star sensor by the observation satellite, the star sensor is used for measuring the unit direction vectors of the observed satellite relative to the observation satellite, and the direction vectors of the observed satellite relative to the observation satellite are calculated based on the distance from the observed satellite to the observation satellite obtained via inter-satellite link measuring. The inter-satellite relative observation method is used for system analysis of illumination conditions and observation conditions needed by inter-satellite observation using the star sensor, and a series conditions used for guaranteeing observation quality and precision are provided. The inter-satellite relative observation method can be used for providing high precision relative observation information for satellite formation flying, and solving a problem that navigation precision is low because of lack of satellite formation flying observation information.
Owner:SOUTHEAST UNIV
Time-of-flight mass spectrometer
ActiveCN103858205AInhibition of trajectory bendingPrevent outflowTime-of-flight spectrometersElectron/ion optical arrangementsEngineeringIon acceleration
A thin metal plate (113) and two rectangular rod-shaped metal members (112) that are parallel to each other are alternately superposed repeatedly, and thick metal plates (111) are disposed on both ends of the stack to sandwich the stack. Each surface which is in contact with another surface is bonded thereto by diffusion bonding to form an integrated multilayer structure (110). The multilayer structure (110) is cut at given intervals along planes perpendicular to the thin metal plates (113). Thus, a grid-shaped electrode (100) which has spaces, as openings (102), formed by thin metal plates (113) serving as blades (101) and by metal members (112) as spacers is obtained. With this configuration, it is possible to increase the thickness of the blades (101) to heighten the mechanical strength while keeping the width of the blades (101) and the distance therebetween small. Furthermore, leakage of an electric field from the flight space side to the ion acceleration region side can be inhibited, and the ions which are being introduced can hence be prevented from escaping from the ion acceleration region to the flight space side.
Owner:SHIMADZU SEISAKUSHO CO LTD
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