282 results about "Air ground" patented technology

Systems and methods for monitoring and reporting a quick access recorder (QAR) data in real time. The system includes a QAR for recording fault information, a removable portable hardware component that stores, analyzes and displays the fault information, an onboard data communication network that enables the QAR and the portable hardware component to exchange information, and an air-ground data transmitting device for transmitting the fault information from the vehicle. The removable portable hardware component may be an Electronic Flight Bag (EFB) that hosts a QAR Manager application and communication technologies to manage and report all applications on the EFB.

The invention discloses an air-ground integrated network architecture based on a software defined network and network function virtualization. According to the system architecture, the entire network consists of a ground network part and a space network part, and is divided in a unified manner into a management layer, a control layer and a forwarding layer. The management layer is responsible for registering and querying the network status and network service functions of the ground part and the space part in the air-ground integrated network and making routing, security, billing, service call and resource management strategies. The control layer consists of a ground part and a space part, and is responsible for controlling data forwarding according to the strategies of the management layer and collecting the information of network links and network service functions. The forwarding layer consists of a ground part and a space part, and is responsible for forwarding data and providing network service functions. The architecture uses a software defined network and an idea of network function virtualization, and efficient information transmission control and on-demand satellite service providing are realized in an air-ground integrated network.

The invention relates to the technical field of three-dimensional modeling, and discloses a real scene three-dimensional modeling method for an urban building. Aviation oblique photographic measurement and ground vehicle-mounted mobile measurement are organically combined to perform air-ground integrated extraction and processing of omni-directional spatial information so that an urban building real scene three-dimensional model can be rapidly established, the ground defect of aviation oblique photographic measurement can be compensated to the greatest extent, and the ground advantage of vehicle-mounted mobile measurement can be fully exerted.

The invention relates to a multi-source image fusion imaging system of a three-dimensional police geographic information platform. The system solves the technical problems that an objective world simulated through the prior art is low in trueness and the like. The system comprises a tilting remote sensing photogrammeteric device, a near-surface mobile photogrammeteric device, a live-action three-dimensional modeling subsystem, a building information model subsystem, a two-dimensional GIS subsystem and a police information subsystem. The tilting remote sensing photogrammeteric device and the near-surface mobile photogrammeteric device are connected with the live-action three-dimensional modeling subsystem, the live-action three-dimensional modeling subsystem and the building information model subsystem are connected with a virtual reality city information model building system, and the city information model building system, the two-dimensional GIS subsystem and the police information subsystem are connected with a multi-source fusion subsystem. The multi-source image fusion imaging system has the advantages that technical breakthrough in uniform global positioning, air-ground integration, interior and outdoor integration, interfaces, standards and other aspects is achieved, so that multilevel police application, such as guard security, anti-terrorist, commanding and dispatching and base and grassroots, is met.

The invention discloses an air-ground amphibious spherical metamorphic robot based on a metamorphic principle. The robot mainly comprises a flying module and a traveling module. The flying module comprises a symmetrical four-connecting bar mechanism driven by a worm and worm wheel motor, and the four-connecting bar mechanism realizes to automatically fold a stand to adapt to different requirements for the robot structure under a spherical un-deformed state, a terrestrial state and an aerial state. The traveling module uses a 8-freedom four-foot robot, the shanks are driven to move through the four-connecting bar mechanism, and arc plates fitting with the shanks partially fit with the lower semi-spherical shell under the un-deformed state so as to form the spherical shape. When preparing to fly, the upper semi-spherical shell gives place to support arms for folding the stand through moving upwardly. After the support arms stretch to the right positions, the upper semi-spherical shell moves downward to restore. A crank block mechanism is used for driving the upper semi-spherical shell. The air-ground amphibious spherical metamorphic robot based on the metamorphic principle is featured with small volume, reasonable structure, simple and beautiful shape, outstanding movement performance, easiness and high efficiency in control, strong anti-interference ability and the like.

The invention discloses an air-ground combined agricultural spraying device and application of the air-ground combined agricultural spraying device. The air-ground combined agricultural spraying device comprises an aircraft, connecting pipelines, a winch mechanism, a winch mechanism supporting rod, a power system, a liquid pesticide storage tank, a transport vehicle, a pressure pump, an inner passage, a propeller, a propeller beam, a propeller drive motor, an aircraft bracket and spray heads. According to the air-ground combined agricultural spraying device, the large-size heavy liquid pesticide tank, the pressure pump and the power system are installed on the transport vehicle, a spraying mechanism is installed on the small unmanned rotorcraft, and an air device and a ground device are connected through hoses and wires. In this way, aerial spraying in a limited area within ultra-long auto-hover time is achieved, and meanwhile long-distance ground transportation of an aircraft is achieved.

The invention relates to the field of air-ground dual-dwelling vehicle technology, in particular to a longitudinal-line-type dual-culvert vertical-lifting air-ground vehicle. The vehicle comprises a vehicle body, a driving cabin and vehicle wheels that are arranged on the vehicle body; the front end and the rear end of the vehicle body are respectively provided with a ducted propeller; each ducted propeller comprises a culvert, an airscrew and a bracket; the rotation shaft of the airscrew is arranged vertically; the airscrew is provided with an automatic inclining device; two airscrews are driven to rotate reversely by an engine of the vehicle body; the vehicle can be driven on road by the vehicle wheels and can realize vertical lifting and flying by the lifting force provided by the rotation of two vertical ducted propellers; the flying, landing, suspending, heading, withdrawing and rotating are realized by adjusting the rotation speed difference of the two ducted propellers and / or the elevation of the oars; the controllability is good and the structure is simple; the culverts protect the airscrews and the passerby simultaneously and avoid the passerby from being harmed by the airscrews, thus having high safety performance.

The invention discloses an air-ground coordinated multi-constellation satellite navigation integrity multi-stage monitoring method. The method is suitable for monitoring multi-constellation satellite navigation integrity. The method comprises the following steps: receiving navigation observation quantity through a ground monitoring station; estimating and monitoring an ephemeris error and a star clock error of a satellite space signal, and carrying out availability prediction of satellite navigation autonomous integrity monitoring on an air route in a region, and broadcasting the result to an airplane. Airborne navigation equipment detects whether a fault exits in a received navigation satellite or not by using prior information of terrestrial broadcasting, so as to determine the navigation integrity of the flight. Compared with a traditional RAIM detection method, the detection probability of satellite faults can be improved; the requirements of relatively low false alarm probability and false dismissal probability can be met, thus the navigation continuity and availability are improved; through multi-constellation joint integrity monitoring, relatively high navigation availability can be obtained; relatively good navigation reliability, and performance analysis of a positioning error caused by the minimum detection deviation can be realized.

The invention discloses a satellite based one-to-many data transmission system, and method. According to the bandwidth of data generated by each task load and the number of corresponding receiving points, a network protocol is selected for the data generated by each task load, and the network data of the task load is packaged according to the selected network protocol and is sent to an assigned network interface of an airborne network switch; large bandwidth data is transmitted through a user datagram protocol (UDP) multicast protocol, and small bandwidth data is transmitted through a transmission control protocol / internet protocol (TCP / IP) or UDP point-to-point dissemination protocol; and when the UDP multicast protocol data and point-to-point dissemination protocol data coexist, virtual local area network (VLAN) division is performed. Due to use of the virtual network and flexible selection of the network protocol, a plurality of data receiving ends can receive signals, and data occupied bandwidth is reduced when air-ground communications is carried out in data generation ends like an unmanned plane and so on by use of a satellite communications link.

The invention discloses an air-ground integrated city ecological civilization managing system and method based on Beidou positioning. Satellites, unmanned planes, vehicles and the like carried with Beidou satellite navigation and positioning terminals collect satellite and low-altitude aerial photography images as well as vehicle laser scanning, vehicle video shooting and ground fixed-point shooting data, 2D texture images and 3D point cloud data of a large-scale scene are rapidly and completely obtained from the data in various manners, and segmentation, classification, identification and high-dimensional reconstruction of the large-scene are realized based on the multi-source combined data. Compared with the prior art, the system and method have the advantages that the precision of a scene model can reach the centimeter level which is greatly higher than the meter level of a traditional method, and practical measurement, calculation and verification show that the data collecting and processing time is only about 1 / 4 that of the traditional method.

The invention discloses an air-ground coordination unmanned aerial vehicle sensing and avoiding system. The air-ground coordination unmanned aerial vehicle sensing and avoiding system comprises a visual sensing system, an image processing system and a flight control system which are arranged on an airplane. The visual sensing system is used for collecting image information of a target, and then transmitting the image information to the image processing system. The image processing system outputs the image information of the target in two paths. In one path, unprocessed image information is directly transmitted out to a ground system; in the other path, processed target waypoint information is transmitted to the flight control system, and the flight control system interacts with the ground system. The invention further provides an air-ground coordination unmanned aerial vehicle sensing and avoiding method. The uncertainty caused by pure-ground-control unmanned aerial vehicle flight trajectory avoiding is avoided, and the uncertainty caused when the pure unmanned aerial vehicle independently avoids barriers in air is avoided.

The invention discloses a satellite mobile voice communication system with an extra-low speed, and relates to the satellite technology. The satellite mobile voice communication system with the extra-low speed based on a forwarding type satellite navigation system can be built by taking advantages of GEO (geostationary orbit) communication satellite resources (or other satellite resources) in the current forwarding type satellite navigation system, adopting a speech compression coding with the extra-low speed and a ground mobile voice communication network technology, and determining a communication system, signal characteristic and a system composition of the satellite mobile voice communication through an optimized design of satellite channel, a microminiature satellite terminal and an optimized design of ground network control technology. The system provided by the invention has the advantages of system resource sharing, flexible and effective network and combined navigation and communication capability, and can provide a low-cost voice communication application service and can be applied to an air-ground emergency communication system and a measurement system with small data volume demand.

The invention discloses a universal aircraft surveillance platform constructed by Beidou and ADS-B dual-link navigation equipment, which comprises Beidou and ADS-B dual-link laser height-finding airborne navigation equipment, an air traffic control navigation ADS-B and Beidou data processing center and a universal aircraft airspace supervision cloud platform. The invention discloses brand-new low-altitude airspace aircraft surveillance management equipment and a matched low-altitude aircraft airspace comprehensive management system which can completely solve a problem of insufficient technicalequipment in the field of low-altitude airspace surveillance at present in China, and can combine the existing ADS-B ground stations and ADS-B ground stations to be built to construct an air-ground data link so as to meet the requirement of low-altitude aircraft flying state surveillance especially under the condition that the ADS-B system has not completely covered the territorial air space of China. Disclosed by the invention is multi-data-link multifunctional universal aircraft airborne equipment which integrates technologies such as ADS-B, Beidou positioning communication and laser heightfinding.

The invention discloses an air-ground amphibious task set. The task set consists of a ground unmanned mobile platform, and a plurality of flying robots; and the ground unmanned mobile platform is combined with and separated from the flying robots through an automatic release mechanism on the ground unmanned mobile platform. During task execution, the flying robots are fixedly connected with the ground unmanned mobile platform through the automatic release mechanism, and a control operator remotely controls the mobile platform through wireless communication, and guides the whole task set to a task area according to a global positioning system (GSP) position signal on the mobile platform and the returned image signal. After the task set arrives in a task area, the control operator sends a flying command to the mobile platform; and after the automatic release mechanism is opened, the mobile platform sends a take-off command to the flying robots, and the flying robots take off immediately and execute the task. The flying robots return a pose signal and detection information to the unmanned mobile platform in real time. The mobile platform adjusts the flying robots according to the pose signal of the flying robots and returns the detection information of the flying robots to a control center. Through coordination of members of the set, the tasks of battlefield detection, resource exploration, disaster relief and the like are executed.

The invention discloses an air-ground amphibious intelligent vehicle, aiming at overcoming the problem that in the prior art, the vehicle only can run on the ground. The intelligent vehicle consists of a lower ground intelligent vehicle, a middle control system and an upper flight dynamic system, wherein the flight dynamic system comprises four sets of flight dynamic devices with same structures, a connecting rod fixing disc (6), a connecting rod fixing block (7), a carbon fiber connecting rod (17), a motor fixing block (18) and a motor fixing frame (19). The flight dynamic device comprises a propeller (1), a bullet propeller clamp (2), a brushless motor (3) and an electronic speed regulator (4). The four sets of flight dynamic devices are arranged symmetrically by the carbon fiber connecting rod (17) and the like relative to the centers of gravity of the air-ground amphibious intelligent vehicle. The flight dynamic system and a PCB (12) in the middle control system are connected into a whole by studs (15) which are distributed uniformly, and the PCB (12) and a ground intelligent vehicle therebelow are connected into a whole by the studs (15) which are distributed uniformly.

An air-ground data communication control system comprises: airplane communication control system and ground station communication control system. The airplane communication control system and ground station communication control system both comprises: multi-link management control module, aviation data transmission and processing module, queue management module, memory and cache module, timer module; the ground station multi-link management control module and airplane multi-link management control module are different in function, and other aviation data transmission and processing module, queue management module, memory and cache module, timer module all have same function for ground and air communication control system. The invention obviously promotes air-ground data transmission capacity, and possesses expansibility and facilitates upgrading of communication system.

The invention relates to an air-ground data link control management method which comprises the course of the link initialization of an airplane and a ground system, the establishment of the initialization link of the airplane and a ground station, an automatic tuning method of a ground base system and the multi-state link switching course, wherein the course of the link initialization of the airplane and the ground system comprises the following steps: the airplane searches in a public signal frequency band and the frequency band with service priorities, and the ground station also sends a ground broadcast frame in the present service frequency band and the public signal frequency band; the multi-state link switching course comprises the following steps: according to differences of switching control weights of the airplane and the ground station, if the ground system is required to be switched, and an airplane terminal has switching and initialization functions, the switching course of ground base requirements and airplane initialization is carried out, and if the airplane terminal is required to be switched and the ground station has switching and initialization functions, the switching course of air plane requirements and ground initialization is carried out. The flexible and automatic control and the link management with no gap switching of the airplane and the ground station can be guaranteed.

The invention discloses a Chinese and English language speech recognition method and system for the civil aviation air-ground call field. The Chinese and English language speech recognition method forthe civil aviation air-ground call field includes the steps: acquiring a data set of civil aviation air-ground call speeches, including audio files, annotated texts, a pronunciation dictionary and alanguage model, as a training data set; performing feature extraction on the training data set, and converting the data to obtain a feature vector; performing language recognition training according to the feature vector to obtain a Chinese and English language recognition model; performing speech recognition training according to the feature vector to obtain a Chinese and English speech recognition model; and taking the language recognition model as a front end and taking the speech recognition model as a back end to obtain a Chinese and English language speech recognition method for civil aviation air traffic control. The Chinese and English language speech recognition method or system for the civil aviation air-ground call field can assist a controller to perform air-ground dialogue analysis to guarantee accuracy of speech recognition and improve accuracy of civil aviation air-ground calls.

A method and apparatus for air-ground detection. A truck beam of a semi-levered landing gear is mounted on a pivot pin. The truck beam is configured to rotate about the pivot pin between a toes down position and a toes up position. A positioning mechanism is connected to a locking mechanism that secures an angle of the truck beam in the toes up position. The locking mechanism is secured in a steady state and configured to change from the steady state to a locked state in response to an initial ground contact. A sensor is connected to the locking mechanism. The sensor is configured to detect a change from the steady state to the locked state.

A method to detect if an aircraft is airborne or on the ground may include detecting at least one of a truck tilt of each main landing gear and a strut compression of each main landing gear. The method may also include detecting the aircraft being airborne or substantially on the ground in response to at least one of the truck tilt of each main landing gear and the strut compression of each main landing gear.

The invention discloses an air-ground channel modeling method and apparatus. The method comprises the following steps: determining surface terrain feature information affecting air-ground channel transmission in the current environment; obtaining known information of a transmitting end and a receiving end, weather information of the current environment and confidence coefficient information of a channel simulation scene, wherein the known information of the transmitting end and the receiving end comprises: position information of the transmitting end and the receiving end, related indexes of a transmitting and receiving antenna and related features of radio waves; extracting influence parameters affecting air-ground modeling according to the surface terrain feature information, the known information of the transmitting end and the receiving end, the weather information of the current environment and the confidence coefficient information of the channel simulation scene, wherein the influence parameters comprise transmission loss corresponding to a radio wave transmission mode and transmission attenuation corresponding to transmission path shielding; and constructing an air-ground channel model based on the influence parameters. The influence of the surface terrain in the vicinity of the receiving end to the radio wave transmission is considered in the model, thereby improving the validity of the model.

The invention discloses an unmanned aerial vehicle operation and management cloud platform in air ground cooperative operation, which relates to the unmanned aerial vehicle operation and management technology and aims at solving the problems that the unmanned aerial vehicle in the prior art lacks planning management and a danger is likely to be caused to the public society. The unmanned aerial vehicle operation and management cloud platform in air ground cooperative operation comprises an unmanned aerial vehicle, a navigation satellite, a ground management cloud platform and an air managementsystem, wherein the ground management cloud platform comprises a ground management server, a meteorological module, a navigation and position monitoring module, an identity authentication system, a data memory, a ground display module, a battery monitoring and control module and a ground communication system. The air ground cooperative management mode is used to carry out identity authentication and flight management on the unmanned aerial vehicle, effective supervision on the unmanned aerial vehicle can be realized, and the lives and the properties of people can be ensured.

The invention discloses an air-ground integrated cooperative monitoring system and method of soil heavy metal pollution degree. The air-ground integrated cooperative monitoring system is composed of an air hyperspectral surface source monitoring terminal, a ground LIBS point source monitoring terminal, and a ground monitoring terminal. According to the method, the air hyperspectral surface source monitoring terminal is used for rough measurement of large-area soil heavy metal pollution degree, and providing the positions of specific areas with soil heavy metal pollution; at the same time, the ground LIBS point source monitoring terminal is used for cooperative accurate measurement of soil heavy metal in the specific areas, including measurement on the kinds and contents of heavy metal pollutants; and at last, the ground monitoring terminal is used for displaying a three dimensional spatial distribution map of soil heavy metal pollution degree. According to the air-ground integrated cooperative monitoring system and the method, the air hyperspectral surface source monitoring terminal and the ground LIBS point source monitoring terminal are adopted, so that rapid accurate measurement on large-area soil heavy metal kinds and contents is realized, evaluation time and error of large-area soil heavy metal pollution degree are shortened and reduced respectively, and reliable basis is provided for treatment and prevention of soil heavy metal pollution.

The invention relates to an air traffic control real-time regulation effectiveness evaluation system, in particular to a real-time regulation effectiveness evaluation system for air traffic controllers. The system comprises a real-time operation data acquisition module, a real-time operation data processing module, a central database, a history operation data acquisition module and a real-time regulation effectiveness evaluation module, wherein the real-time operation data acquisition module is used for acquiring position information data, flight information data, flight plant data of an air traffic control automatic system, air-ground communication data and radar comprehensive flight path data; the real-time operation data processing module is used for filtering and processing acquired real-time operation data; after the processed real-time operation data is transmitted to an index assessment module, an obtained index is saved in the central database; the central database is used for storing and managing data; the history operation data acquisition module is used for acquiring history operation data; and the real-time regulation effectiveness evaluation module comprises a quantification evaluation module and a real-time regulation effectiveness comprehensive evaluation module. The air traffic control real-time regulation effectiveness evaluation system is applied to the field of civil aviation air traffic control.

The present invention relates to an air-ground heterogeneous robot system path planning method based on a neighborhood constraint. A smallest heterogeneous robot system is formed by a ground mobile robot and an air flying robot. The steps of the method include the ground mobile robot and the air flying robot start from a start point at the same time, successively access N sub-task points for executing sub-tasks and finally reach a destination together. In the present invention, it is considered that the position of each sub-task point is allowed to be effective in a certain neighborhood, and a neighborhood constraint is introduced. In addition, the maximum speed constraints are considered respectively for the air flying robot and the ground mobile robot. In the present invention, the air-ground heterogeneous robot system is enabled to fully utilize respective characteristics to realize advantage complementation, tasks are completed within a specific neighborhood range, the efficiency of path planning is improved, resources are saved, and the air-ground heterogeneous robot system path planning method is applicable to the fields such as marine cooperative rapid rescue, target identification and communication networking, cooperative environment sensing and positioning, so that the method has a wide application prospect.

The invention discloses an air-ground integrated plant automatic detection system and method. The system comprises a front end collecting module, an unmanned aerial vehicle collecting module, a polarorbiting satellite remote sensing module and a rear end processing module; the front end collecting module is used for collecting meteorological factors, environmental factors and Chinese herb images;the unmanned aerial vehicle collecting module is used for collecting visible light images and multispectral remote sensing images; the polar orbiting satellite remote sensing module is used for collecting the regional image information and hyperspectral plant remote sensing images; and the rear end processing module is used for evaluating whether the current environment adapts to growing and developing of Chinese herbs or not by conducting historic storage, command control and real-time displaying and comprehensive analysis of the meteorological factors, the environmental factors and the images of the front end collecting module, conducting alarming on the corresponding situations, and predicting the yield. The method is simple and convenient to operate, and the data is accurate.

The invention provides a passive stability-enhanced deformable undercarriage air-ground flying robot which comprises a body, deformable undercarriage devices, wing fuselage protection frames, rotor devices, an electromagnetic shielding cabin and an automatic pilot, wherein a general mechanical extension interface with one rotational degree of freedom is installed at the upper part of the body, the interface is provided with a CAN bus connection port, and end work modules can be connected according to different tasks; the deformable undercarriage devices are installed on the body, and diversion trenches are arranged on the deformable undercarriage devices so as to provide passive stability-enhanced airflow for the robot provided by the invention; the wing fuselage protection frames are installed at the tails of the deformable undercarriage devices; the rotor devices are installed on the body; the electromagnetic shielding cabin is installed at the lower part of the body; the automatic pilot is installed in the electromagnetic shielding cabin; and the automatic pilot respectively drives the deformable undercarriage devices to realize switching between a flying mode and a ground mode of the robot provided by the invention. According to the invention, propeller protectors, undercarriages and passive stability enhancers are integrated in the deformable undercarriage devices, so that the self-weight is reduced, and the viability of power components and effective loads in complex environments is improved.

The present invention provides a method and device of grading multiple access with collision avoidance in a space-air-ground vehicle network. The method comprises: a sending node determines a first RS (Reservation Slot) on a first channel; it is determined whether conflict information is received or not in a preset time quantum prior to the first RS, the conflict information comprises: a second CTS (Clear To Send) packet and the conflict RTS packet of a first receiving node, and the second CTS packet is information configured to allow data transmission and sent by receiving node to the first channel corresponding to other sending nodes in the communication range of the sending node; and if the conflict information is received in the preset time quantum prior to the first RS, a backoff time is obtained, the RS sending the first RTS packet to the first receiving node is determined again, and first data is sent to the first receiving node through a second channel. The method and device of grading multiple access with collision avoidance in space-air-ground vehicle network can solve the problem that the channel utilization needs to improve in the process of realization of multiple access in the prior art.