The present invention generally relates to flight paths of aircraft and more specifically to flight path of a soaring aircraft as it relates to lift forces.
Initially soaring and gliding was used to increase the duration of flights. Soon however, pilots attempted flights away from the place of launch improvements in aerodynamics and in the understanding of weather phenomena have allowed greater distances at higher average speeds. Long distances are now flown using any of the main sources of rising air: ridge lift, thermals and lee waves. When conditions are favorable, experienced pilots can now fly hundreds of kilometers before returning to their home airfields.
Gliders are used for tasks such as search and rescue, surveillance, transportation, and pleasure. Gliders are reliant on meteorological conditions to provide lift; subsequently the optimal route from A to B is often not direct.
Disclosed is a novel system and method for flight path calculation based on fine-grained weather forecasting, nowcasting, and path searching. Based on continuously updated forecasts, the presently claimed invention determines a path to destination using detailed fine-grained information on current and future lift locations and wind direction.
In one example, a computer-implemented method for adjusting a flight path of an aircraft is described. The method begins with computing a flight path of an aircraft from a starting point to an ending point which incorporates predicted weather effects at different points in space and time. An iterative loop is entered for the flight path. Each of the following steps are performed in the iterative loop. First lift data is accessed from a fine-grain weather model associated with a geographic region of interest. The lift data is data used to calculate a force that directly opposes a weight of the aircraft. In addition, lift data may be accessed from sensors coupled to the aircraft. The lift data is one or more of 1) thermal data where air rises due to temperature, 2) ridge lift data where air is forced upwards by a slope, 3) wave lift data where a mountain produces a standing wave, 3) convergence lift data where two air masses meet, and 4) a dynamic soaring lift data where differences in wind speeds at various altitudes is used.
Adjustments to the flight path are calculated based on a combination of the lift data from the fine-grain weather model and the lift data from sensors and other weather data. In one example, crowdsourcing data is also used. These calculations can be performed on the aircraft, on other aircraft, ground stations, or a combination thereof. Also, adjustments to flight path can also be received from other aircraft. The flight path is adjusted based upon the adjustments that have been calculated. This flight path information, in another example is shared with other aircraft.
The accompanying figures wherein reference numerals refer to identical or functionally similar elements throughout the separate views, and which together with the detailed description below are incorporated in and form part of the specification, serve to further illustrate various embodiments and to explain various principles and advantages all in accordance with the present invention, in which:
As required, detailed embodiments are disclosed herein; however, it is to be understood that the disclosed embodiments are merely examples and that the systems and methods described below can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present subject matter in virtually any appropriately detailed structure and function. Further, the terms and phrases used herein are not intended to be limiting, but rather, to provide an understandable description of the concepts.
The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
An important component to the claimed invention is “fine-grained weather forecasting.” Predicting the weather accurately is a hard enough computing problem. Predicting the weather for a specific location down to a square kilometer—and how it will affect the people and infrastructure there—is a problem of a much different sort. And it's that sort of “hyper-local” forecasting that IBM's Deep Thunder provides.
Precision weather prediction or “fine-grained weather” forecasting was originally set up in the IBM in 1996. Currently the IBM technology is known as “Deep Thunder” See online URL (en.wikipedia.org/wiki/IBM_Deep_Thunder). Deep Thunder provides local, high-resolution weather predictions customized to weather-sensitive specific business operations. For example, it could be used to predict the wind velocity at an Olympic diving platform, or where there will be flooding and predict where mudslides might be triggered by severe storms. or damaged power lines up to 84 hours in advance. Unlike the long-term strategic weather forecasts that many companies rely on to plan business, Deep Thunder is focused on forecasts in small a geographic area with a very fine time granularity. For example, in 2001, IBM set up a test bed in the New York City metropolitan area. A 3D grid of thousands of blocks, each one cubic kilometer in size was setup. Calculations could be run on each cube of the grid to generate very local and precise predictions. The team also began working on the kind of modeling, forecasting, and data visualization innovations that could help a business make smarter logistical, planning and operational decisions, faster and with more confidence.
The presently claimed invention provides a novel system and method for flight path calculation based on fine-grained weather forecasting, nowcasting, and path searching. Based on continuously updated forecasts we are able to find a path to destination using detailed fine-grained information on current and future lift locations and wind direction.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The term “aircraft” is a machine that is able to fly by gaining support from the air. Aircraft includes unpowered gliders, balloons, dirigibles, and kites. Aircraft also includes powered fixed winged designs with one or more engines to produce thrust. The engines can run on fuel or be battery powered. Aircraft also includes powered rotorcrafts including helicopters.
The terms “comprises” and/or “comprising,” specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term “crowdsourcing data” is data from a group of individuals typically that elect to share data for a specific flight path.
The term “fine-grained weather model” also known as “microscale meteorology” or “hyper-local forecasting” means a weather model is a model that is able to forecast weather to a small specific geographic region i.e., less than a kilometer for an immediate time period Time periods of a few seconds to few days is typical. This model forecasts smaller features, such as, individual showers and thunderstorms with reasonable accuracy, as well as other micro-scale phenomena. Fine-grained weather models have two important features—a defined geographic region and defined time period. From online URL (http://en.wikipedia.org/wiki/Microscale_meteorology)—“Microscale meteorology is the study of short-lived atmospheric phenomena smaller than mesoscale, about 1 km or less. These two branches of meteorology are sometimes grouped together as “mesoscale and microscale meteorology” (MMM) and together study all phenomena smaller than synoptic scale; that is they study features generally too small to be depicted on a weather map. These include small and generally fleeting cloud “puffs” and other small cloud features. Microscale meteorology controls the most important mixing and dilution processes in the atmosphere. Important topics in microscale meteorology include heat transfer and gas exchange between soil, vegetation, and/or surface water and the atmosphere caused by near-ground turbulence. Measuring these transport processes involves use of micrometeorological (or flux) towers. Variables often measured or derived include net radiation, sensible heat flux, latent heat flux, ground heat storage, and fluxes of trace gases important to the atmosphere, biosphere, and hydrosphereish explained.”
The term “geographic region” means a defined portion of the world. A destination region could be any small pre-defined geographic region including a postal code, a stadium, or an area defined by global position system (GPS) coordinates, in which lift data for a flight path is used.
The term “lift” is the force that directly opposes the weight of an airplane and holds the airplane in the air. Lift is generated by every part of the airplane, but most of the lift on a normal airliner is generated by the wings. See online website (http://www.grc.nasa.gov/WWW/k-12/airplane/lift1.html). Soaring aircraft and soaring birds use lift as an energy source to stay aloft.
The term “lift data” means data from weather and sensor and includes data wherein the lift data includes at least one of: 1) thermal lift data where air rises due to temperature, 2) ridge lift data where air is forced upwards by a slope, 3) wave lift data where a mountain produces a standing wave, 4) convergence lift data where two air masses meet, and 5) a dynamic soaring lift data where differences in wind speeds at various altitudes is used.
The term “sensor” is a device that can measure physical attributes of external environmental converting readings of light, motion, temperature, magnetic fields, gravity, humidity, moisture, vibration, pressure, electrical fields, sound, and other physical aspects of the external environment into values related to lift data that is usable by a computer. Lift data is derived from measuring heat transfer and gas exchange between soil, vegetation, and/or surface water and the atmosphere caused by near-ground turbulence. Variables often measured or derived include net radiation, sensible heat flux, latent heat flux, ground heat storage, and fluxes of trace gases important to the atmosphere, biosphere, and hydrosphere.
The term “time period” means a duration, such as those measured in minutes, in which a lift data is deemed relevant.
Lift Sources
Referring to
Flight Path Communications
Lift data is also received from ground weather stations 640, 642. Aircraft 604 and aircraft 606 also relay such atmospheric information data to satellites 650, which also communicate with ground weather stations 640, 642. In addition, aircraft 604 and aircraft 606 may also relay such data to one or more other aircraft 602 in order to coordinate flights paths and/or locations, share atmospheric information data, and avoid collisions or overcrowding an airspace. This continuous and contemporaneous relay of atmospheric information between aircraft 604 and aircraft 606, atmospheric information ground weather stations 640, 642, satellite 650 and base station 662 constitutes in part an atmospheric data network 662.
The links 722, 724, 726, 742, 744, 746, 748, 750 may be directly or indirectly coupled to network 730. For example, hardwired network connection or wirelessly coupled to network 730 via wireless communication channel. Although many aspects are shown as discrete systems, it is within the true scope and spirit of the presently claimed invention for these to be combined into one system.
The flight path processor 714 may include, but are not limited to: a personal computer, a server computer, a series of server computers, a mini computer, and a mainframe computer. The flight path processor 714 may be a single server or a series of servers running a network operating system, examples of which may include but are not limited to Microsoft Windows Server or Linux. The flight path processor 714 may execute a web server application, examples of which may include but are not limited to IBM Websphere or Apache Webserver™, that allows for HTTP (i.e., HyperText Transfer Protocol) access to other systems via network 730. Moreover, network 730 may be connected to one or more secondary networks e.g., network 730, examples of which may include but are not limited to: a local area network; a wide area network; or an intranet, for example. Three important inputs 750 to the flight path processor 714 are shown. These inputs include 1) Geographic Location (GL), 2) Geographic Range (GR), and 3) Time Period (TP). The flight path processor uses these inputs along with the lift data sources 1, 2, 3 . . . (LDS1, LDS2, LDS3, . . . ) in a function f(GL, GR, TP, LDS1,LDS2,LDS3, . . . ) may include using history and machine learning algorithms, such as Bayesian algorithms and neural networks. The machine learning algorithms can include both supervised and unsupervised algorithms.
The flight path processor calculates routes in three main steps as follow:
Flow Chart
Information Processing System
Referring now to
The bus 1008 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, Enhanced ISA (EISA) bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnects (PCI) bus.
The information processing system 1002 can further include other removable/non-removable, volatile/non-volatile computer system storage media. By way of example only, a storage system 1014 can be provided for reading from and writing to a non-removable or removable, non-volatile media such as one or more solid state disks and/or magnetic media (typically called a “hard drive”). A magnetic disk drive for reading from and writing to a removable, non-volatile magnetic disk (e.g., a “floppy disk”), and an optical disk drive for reading from or writing to a removable, non-volatile optical disk such as a CD-ROM, DVD-ROM or other optical media can be provided. In such instances, each can be connected to the bus 1008 by one or more data media interfaces. The memory 1006 can include at least one program product having a set of program modules that are configured to carry out the functions of an embodiment of the present invention.
Program/utility 1016, having a set of program modules 1018, may be stored in memory 1006 by way of example, and not limitation, as well as an operating system, one or more application programs, other program modules, and program data. Each of the operating system, one or more application programs, other program modules, and program data or some combination thereof, may include an implementation of a networking environment. Program modules 1018 generally carry out the functions and/or methodologies of embodiments of the present invention.
The information processing system 1002 can also communicate with one or more external devices 1020 such as a keyboard, a pointing device, a display 1022, etc.; one or more devices that enable a user to interact with the information processing system 1002; and/or any devices (e.g., network card, modem, etc.) that enable computer system/server 1002 to communicate with one or more other computing devices. Such communication can occur via I/O interfaces 1024. Still yet, the information processing system 1002 can communicate with one or more networks such as a local area network (LAN), a general wide area network (WAN), and/or a public network (e.g., the Internet) via network adapter 1026. As depicted, the network adapter 1026 communicates with the other components of information processing system 1002 via the bus 1008. Other hardware and/or software components can also be used in conjunction with the information processing system 1002. Examples include, but are not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method, or computer program product. Accordingly, aspects of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, aspects of the present invention may take the form of a computer program product embodied in one or more computer readable medium(s) having computer readable program code embodied thereon.
Any combination of one or more computer readable medium(s) may be utilized. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the “C” programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).
Aspects of the present invention have been discussed above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to various embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer readable medium that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the computer readable medium produce an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
The description of the present application has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
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Number | Date | Country | |
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20180137764 A1 | May 2018 | US |
Number | Date | Country | |
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Parent | 14133756 | Dec 2013 | US |
Child | 15869634 | US |