CN117688779A - Simulation scene construction method, device, navigation simulation system, equipment and medium - Google Patents

Simulation scene construction method, device, navigation simulation system, equipment and medium Download PDF

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Publication number
CN117688779A
CN117688779A CN202410117903.1A CN202410117903A CN117688779A CN 117688779 A CN117688779 A CN 117688779A CN 202410117903 A CN202410117903 A CN 202410117903A CN 117688779 A CN117688779 A CN 117688779A
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target
vor station
simulation
distance
vor
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CN117688779B (en
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姚瑶
段坷
王晓明
刘长发
孔令帅
周标
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Beijing Bluesky Aviation Technology Co Ltd
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Beijing Bluesky Aviation Technology Co Ltd
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Abstract

The invention provides a simulation scene construction method, a device, a navigation simulation system, equipment and a medium, and relates to the technical field of simulation, wherein the method comprises the following steps: based on the parameter information of the first target VOR station, a signal effective area of the first target VOR station is constructed in a simulation scene, so that in the process of carrying out flight simulation of a simulation aircraft in the simulation scene, the simulation aircraft can receive radio navigation signals transmitted by the first target VOR station under the condition that the simulation aircraft is in the signal effective area of the first target VOR station; the parameter information includes level information, location information, and elevation information of the first target VOR station. The simulation scene construction method, the device, the navigation simulation system, the equipment and the medium can enable the pilot to make more accurate interpretation and response to the radio navigation signal sent by the VOR station, more accords with the actual scene, and can improve the recognition capability of the pilot to the VOR station in actual flight.

Description

Simulation scene construction method, device, navigation simulation system, equipment and medium
Technical Field
The present invention relates to the field of simulation technologies, and in particular, to a method and apparatus for constructing a simulation scenario, a navigation simulation system, a device, and a medium.
Background
The flight simulation equipment is widely applied to the fields of pilot training, flight skill testing, aviation research and the like.
The very high frequency omnidirectional beacon (VHF Omnidirectional Range, VOR) navigation system is a common aviation navigation system, and radio navigation signals emitted by VOR stations arranged on the ground can provide navigation direction guidance for pilots, so that the aircrafts can arrive at a destination on time and safely. The precondition that the signal receiver arranged in the aircraft can receive the radio navigation signal transmitted by the VOR station is that the aircraft is in the signal effective area of the VOR station.
However, in the related art, it is difficult to accurately simulate the signal effective area of the VOR station in the course of flight simulation using the flight simulation apparatus. Therefore, how to more accurately simulate the signal effective area of the VOR station in the process of performing flight simulation by using the flight simulation device is a technical problem to be solved in the art.
Disclosure of Invention
The invention provides a simulation scene construction method, a device, a navigation simulation system, equipment and a medium, which are used for solving the problem that in the prior art, a signal effective area of a VOR station is difficult to accurately simulate in the process of performing flight simulation by using flight simulation equipment, and the signal effective area is closer to the actual effective area of the signal of the simulation VOR station in the process of performing flight simulation by using the flight simulation equipment.
The invention provides a simulation scene construction method, which comprises the following steps:
acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station;
and constructing a signal effective area of the first target VOR station in a simulation scene based on the parameter information of the first target VOR station, so that in the process of carrying out flight simulation of a simulation aircraft in the simulation scene, the simulation aircraft can receive a radio navigation signal transmitted by the first target VOR station under the condition that the simulation aircraft is positioned in the signal effective area of the first target VOR station.
According to the method for constructing a simulation scene provided by the invention, the method for constructing the signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station comprises the following steps:
under the condition that the level of the first target VOR station is determined to be the terminal level based on the level information of the first target VOR station, constructing a first structural body corresponding to the first target VOR station based on a predefined first distance, a predefined second distance and a predefined third distance in the simulation scene by taking the first target VOR station as a base point, and determining an inner area of the first structural body as a signal effective area of the first target VOR station;
Wherein the first structure is coaxial with the first target VOR station; the first structure body comprises a first segment body and a first cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the first spherical segment is the same as that of the bottom surface of the first cylinder; the lowest point of the first segment is the base point;
the diameter of the bottom surface of the first segment body is the first distance; the height of the first segment is the second distance; the height of the first cylinder is the third distance.
According to the method for constructing a simulation scene provided by the invention, the method for constructing the signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station comprises the following steps:
under the condition that the level of the first target VOR station is determined to be a low-altitude route level based on the level information of the first target VOR station, constructing a second structure body corresponding to the first target VOR station based on a predefined fourth distance, a predefined fifth distance and a predefined sixth distance in the simulation scene by taking the first target VOR station as a base point, and determining an inner area of the second structure body as a signal effective area of the first target VOR station;
Wherein the second structure is coaxial with the first target VOR station; the second structure body comprises a second spherical segment body and a second cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the second spherical segment is the same as that of the bottom surface of the second cylinder; the lowest point of the first segment is the base point;
the diameter of the bottom surface of the second segment is the fourth distance; the height of the second segment is the fifth distance; the height of the second cylinder is the sixth distance; the sixth distance is greater than the third distance.
According to the method for constructing a simulation scene provided by the invention, the method for constructing the signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station comprises the following steps:
under the condition that the level of the first target VOR station is determined to be the high-altitude route level based on the level information of the first target VOR station, constructing a third structure body corresponding to the first target VOR station in the simulation scene based on a predefined seventh distance to a fifteenth distance by taking the first target VOR station as a base point, and determining an inner area of the third structure body as a signal effective area of the first target VOR station;
Wherein the third structure is coaxial with the first target VOR station; the third structure body comprises a third segment body, a third cylinder, a fourth cylinder, a fifth cylinder and a sixth cylinder which are sequentially connected from bottom to top;
the diameter of the bottom surface of the third segment is the same as that of the bottom surface of the third cylinder; the lowest point of the third segment is the base point;
the bottom surface diameter of the third segment is the seventh distance; the diameter of the bottom surface of the fourth cylinder is an eighth distance; the diameter of the bottom surface of the fifth cylinder is a ninth distance; the diameter of the bottom surface of the sixth cylinder is a tenth distance;
the height of the third segment is an eleventh distance; the height of the third cylinder is a twelfth distance; the height of the fourth cylinder is a thirteenth distance; the height of the fifth cylinder is a fourteenth distance; the height of the sixth cylinder is a fifteenth distance;
the seventh distance, the eighth distance, and the ninth distance increase in order; the tenth distance is less than the ninth distance and greater than the eighth distance; the twelfth distance, the thirteenth distance, and the fourteenth distance increase in order, and the fifteenth distance is smaller than the fourteenth distance.
According to the simulation scene construction method provided by the invention,
after the constructing the signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station, the method further includes:
in the process of carrying out flight simulation of the simulated aircraft in the simulation scene, obtaining simulated flight data of the simulated aircraft, wherein the simulated flight data comprises position information and elevation information of the simulated aircraft in the simulation scene;
adding a disturbance signal to a radio navigation signal transmitted by a second target VOR station received by the simulated aircraft in the simulated scene if the simulated aircraft is determined to be located within a signal interference zone of the second target VOR station based on the simulated flight data;
the signal interference area of the second target VOR station is positioned in the signal effective area of the second target VOR station; the simulated aircraft in the simulated scene is capable of receiving radio navigation signals transmitted by the second target VOR station when the simulated aircraft is in a signal effective area of the second target VOR station;
The second target VOR station comprises each VOR station in the real scene corresponding to the simulation scene, or the second target VOR station is determined based on the input of the user; the first target VOR station includes the second target VOR station;
the boundary of the signal interference area of the second target VOR station comprises a side surface and a bottom surface of a first cone corresponding to the second target VOR station and a side surface of a second cone corresponding to the second target VOR station; the vertexes of the first cone and the second cone are vertexes of the second target VOR station, the first cone and the second cone are coaxial with the second target VOR station, and the bottom surfaces of the first cone and the second cone are positioned above the second target VOR station; the vertex angle of the second cone is smaller than that of the first cone; the heights of the first cone and the second cone are both determined based on the second target VOR station; the apex angle of the first cone and the second cone is predefined.
According to the method for constructing the simulation scene provided by the invention, after the simulation flight data of the simulation aircraft are obtained, the method further comprises the following steps:
Cutting off communication between the simulated aircraft and the second target VOR station in the case where it is determined that the simulated aircraft is located within a signal blind zone of the second target VOR station in the simulated scene based on the simulated flight data;
wherein the boundary of the signal blind zone of the second target VOR station includes: and the side surface and the bottom surface of a second cone corresponding to the second target VOR station.
The invention also provides a simulation scene construction device, which comprises:
the data acquisition module is used for acquiring parameter information of the first target very high frequency omni-directional beacon VOR station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station;
the scene construction module is configured to construct a signal effective area of the first target VOR station in a simulation scene based on parameter information of the first target VOR station, so that in a process of performing flight simulation of a simulated aircraft in the simulation scene, the simulated aircraft can receive a radio navigation signal transmitted by the first target VOR station when the simulated aircraft is in the signal effective area of the first target VOR station, where the first target VOR station includes each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the simulation scene construction method according to any one of the above when executing the program.
The invention also provides a navigation simulation system, which comprises: flight simulation apparatus and electronic apparatus as described above; the flight simulation equipment is electrically connected with the electronic equipment; the flight simulation device is used for carrying out flight simulation.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a simulation scenario construction method as described in any one of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a method of constructing a simulation scenario as described in any one of the above.
According to the simulation scene construction method, the device, the navigation simulation system, the equipment and the medium, after the parameter information of the first target VOR station including the level information, the position information and the elevation information is obtained, the signal effective area of the first target VOR station is constructed in the simulation scene based on the parameter information of the first target VOR station, so that in the simulation flight process of the simulation aircraft in the simulation scene, if the simulation aircraft is in the signal effective area of the first target VOR station, the radio navigation signal transmitted by the first target VOR station can be received, the signal effective area of the VOR station can be simulated more accurately in the simulation scene according to the level of the first target VOR station, the pilot can make more accurate interpretation and response of the radio navigation signal transmitted by the simulation aircraft to the VOR station, the pilot identification capacity to the VOR station in the actual flight can be improved, the pilot flight experience can be more truly realized, and the flight training effect can be improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a simulation scene construction method provided by the invention;
fig. 2 is a front view of a first structure corresponding to a terminal-level VOR station in the simulation scene construction method provided by the present invention;
FIG. 3 is a schematic flow chart of determining whether a simulated aircraft is in a signal effective area of a terminal-level VOR station in the simulated scene construction method provided by the invention;
FIG. 4 is a schematic flow chart of determining a boundary limit value of a first segment in a first structural body corresponding to a terminal-level VOR station in a simulation scene construction method provided by the invention;
FIG. 5 is a front view of a second structure corresponding to a low-altitude way-level VOR station in the simulation scene construction method provided by the invention;
FIG. 6 is a front view of a third structure corresponding to a high altitude way level VOR station in the simulation scene construction method provided by the invention;
FIG. 7 is a schematic diagram of signal active areas of VOR stations of different levels in the simulation scene construction method provided by the invention;
fig. 8 is a front view of a signal interference area and a signal blind area of a second target VOR station in the simulation scene construction method provided by the present invention;
FIG. 9 is a schematic diagram of a simulation scene construction apparatus provided by the present invention;
fig. 10 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, the terms "first," "second," and the like are used for distinguishing between similar objects and not for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. In addition, in the description of the present application, "and/or" means at least one of the connected objects, and the character "/", generally means a relationship in which the front and rear associated objects are one kind of "or".
The flight simulation device is a device for simulating a flight process by computer software and hardware. The flight simulation device may simulate various different types of aircraft, including aircraft, helicopters, unmanned aircraft, etc., as well as different flight environments, such as sunny days, rainy days, storm snow, etc.
The flight simulation equipment is widely applied to the fields of pilot training, flight skill testing, aviation research and the like. The flight simulation device not only can provide economy and safety for actual combat training, but also can help pilots to become familiar with various operating procedures, cope with emergency situations, and improve their flight skills and reaction capability.
For the flight simulation equipment, the navigation positioning is simulated, and the real-time indication of the navigation azimuth angle parameter is provided, so that the flight simulation equipment is a main means for simulating the course flight and simulating program flight such as off-site and on-site flight.
The flight simulation equipment realizes navigation positioning through simulation, namely, the position and the direction of the flight simulation equipment are calculated by simulating parameters such as the movement, the gesture and the like of the aircraft in the air. Unlike actual navigational positioning, simulated navigational positioning is performed in a virtual environment, the purpose of which is to provide a realistic flight experience, as well as to support flight training and simulation by pilots.
In the related art, the VOR station is a navigation beacon station arranged on the ground, and the VOR station can transmit 360-degree omnidirectional radio navigation signals. When the VOR station works together with the signal receiver of the aircraft, the signal receiver can receive the radio navigation signal emitted by the VOR station and convert the received radio navigation signal into the swing of the direction pointer in the cabin indicator, the indication of the pointer deviation lever or the display content on the airborne display for the pilot to check.
For example, the signal receiver may determine an azimuth angle on a magnetic azimuth line of the VOR station where the aircraft is located based on the radio navigation signal transmitted by the VOR station, and display on a display which magnetic azimuth line of the VOR station the aircraft is located, so that the pilot may determine a position of the aircraft and/or a position of the VOR station based on the magnetic azimuth line of the VOR station where the aircraft is located, so as to guide the pilot to fly.
In general, a signal effective region refers to a region in which sufficient signal quality and reliability can be maintained within a range of signal transmission. A precondition for a signal receiver disposed in the aircraft to be able to receive the radio navigation signal transmitted by the VOR station is that the aircraft is within the signal effective area of the VOR station.
In the traditional VOR navigation simulation method, under the condition that a simulation aircraft flies into a signal effective area of any VOR station in a simulation scene, the simulation aircraft can receive radio navigation signals emitted by the VOR station, so that the simulation aircraft can determine azimuth angles according to the received radio navigation signals and indicate the indicated azimuth angles to a back station.
Therefore, the signal effective area of the VOR station is accurately simulated in the simulation scene, so that the pilot accurately determines the azimuth information of the VOR station based on the radio navigation signal sent by the VOR station and received by the simulation aircraft, and the method is an important basis for the pilot to determine the position of the simulation aircraft, and is also a main means for the simulation aircraft to carry out flight guidance and execute programs such as departure, approach and the like. Therefore, the signal effective area of the VOR station is accurately simulated in the process of carrying out flight simulation by using the flight simulation equipment, so that a pilot can experience the response when the pilot passes through the VOR station in the flight simulation, the recognition capability of the pilot on the VOR station in actual flight is improved, and the method has important significance for improving the authenticity of the flight simulation.
For the VOR stations, the level of the VOR station may be determined according to the range size of the signal effective area, for example, the VOR stations may be determined as a terminal-level VOR station, a low-altitude way-level VOR station, and a high-altitude way-level VOR station according to the sequentially increased range of the signal effective area.
In the related art, in the process of performing flight simulation by using a flight simulation device, an inner area of a hemisphere having a fixed length as a radius with a center of a sphere of a VOR station is generally determined as a signal effective area of the VOR station. Wherein, the bottom surface of the hemisphere is the horizontal plane where the VOR station is located.
However, based on JEPPESEN patterns, the signal active areas of different levels of VOR stations in an actual scene are not the same.
Among them, JEPPESEN navigation map is an aviation navigation map made by Jeppesen Sanderson company, also called JEPPESEN map or Jepp map. Such patterns are commonly used for flight navigation of civilian and commercial aircraft. JEPPESEN charts contain a large amount of information such as airports, airlines, terrains, weather, radio navigation equipment, etc. The information is presented in a symbol and color coded manner so that the pilot can quickly and accurately obtain the required information.
In the related art, the level of the VOR station is not considered in the process of performing flight simulation by using the flight simulation apparatus. Therefore, when the flight simulation of the simulated aircraft is performed in the simulation scene in the related art, generally, any one of the VOR stations is taken as a sphere center, a hemisphere with a fixed length is taken as a radius, the signal effective area of the VOR station is determined to be not in line with the signal effective area of the VOR station in the actual scene, at this time, the radio navigation signal sent by the VOR station received by the simulated aircraft is not accurate, and the pilot is difficult to make a response more in line with the actual scene based on the radio navigation signal, so that the flight experience and the flight training effect of the pilot are poor.
In view of the above, the invention provides a simulation scene construction method, a device, a navigation simulation system, equipment and a medium. According to the simulation scene construction method provided by the invention, when the flight simulation of the simulation aircraft is carried out in the simulation scene, the signal effective area of the VOR station can be more accurately simulated according to the level of the VOR station, so that a pilot can make a response more in line with the actual scene based on the radio navigation signal sent by the VOR station in flight training, more real flight experience can be realized, and the flight training effect of the pilot can be improved.
Fig. 1 is a schematic flow chart of a simulation scene construction method provided by the invention. The simulation scenario construction method of the present invention is described below with reference to fig. 1. As shown in fig. 1, the method includes: step 101, acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station;
it should be noted that, the execution body in the embodiment of the present invention is a simulation scene constructing device.
Specifically, in the embodiment of the present invention, the parameter information of the first target VOR station may be read from the navigation database. The parameter information of the first target VOR station may include level information, location information, and elevation information of the first target VOR station.
It should be noted that, in the embodiment of the present invention, the location information of the first target VOR station may include a geographic location coordinate (longitude, latitude) of the first target VOR station in the real scene; the elevation information of the first target VOR station may include an air pressure elevation of the first target VOR station in the real scene.
It should be noted that the level information of the first target VOR station may be used to describe the level of the first target VOR station. The level of the first target VOR station may be any one of a terminal level, a low altitude way level, and a high altitude way level. The range of the signal effective area of the first target VOR station of the terminal level, the first target VOR station of the low-altitude route level and the first target VOR station of the high-altitude route level is sequentially increased.
It should be noted that in the embodiment of the present invention, each VOR station in the real scene corresponding to the simulation scene may be determined as the first target VOR station. The embodiment of the invention can also determine the first target VOR station based on the input of the user.
It is understood that the number of first target VOR stations in the embodiment of the present invention may be one or more.
It should be noted that, in the process of performing flight simulation of the simulated aircraft in the simulation scene, the user may propose a special requirement for parameter definition of one or more VOR stations in the real scene corresponding to the simulation scene.
In the embodiment of the invention, the parameter information of the first target VOR station can be added into the configuration file (i.e. config file) of the VOR station simulation unit, so that the general parameter information of the first target VOR station is replaced with the parameter information set by a user for subsequent calculation in the real-time operation process of the VOR station simulation unit, and the special requirement of flight simulation can be met. The VOR station simulation unit in the embodiment of the invention can be used for executing flight simulation of the simulated aircraft in a simulation scene.
The specific implementation method for providing special requirements for the parameter definition of one or more VOR stations in the real scene corresponding to the simulation scene by the user is as follows: according to the input of the user, the parameter information of the first target VOR station may be obtained, including: the first target VOR station comprises level information, position information, elevation information, station frequency, station identification code and limiting distance parameter values; the station frequency, the station identification code, the level information, the position information and the elevation information of the first target VOR station are consistent with the information of the station corresponding to the navigation database, so that the uniqueness of the first target VOR station is matched; the limiting distance includes distances of respective horizontal and vertical planes of the signal effective area limited according to the station type.
The specific implementation method for adding the parameter information of the first target VOR station in the configuration file (i.e. config file) of the VOR station simulation unit is as follows: adding the first target VOR station configurably modified parameter information to a config file;
for the parameter information of the first target VOR station in the config file, the VOR station simulation unit performs an initialization stage when being loaded and called by the Isim platform, reads the parameter information of all the first target VOR stations, and stores the parameter information into a list container (hereinafter referred to as a special station list) in the VOR station simulation unit;
in the real-time operation stage of the VOR station simulation unit, sending a query request to a navigation database according to the station frequency in the current period, wherein the navigation database returns parameter information of the VOR station within a certain range from the current distance simulation aircraft, and the method comprises the following steps: airport, station frequency, station longitude, station latitude, station altitude, station identification code, VOR station level information corresponding to the station;
according to the station frequency and the station identification code of the VOR station acquired by inquiring the navigation database, performing traversal matching on the VOR station in the first target VOR station list, if the station frequency and the station identification code are consistent with the same, judging that the matching is successful, and returning a station distance limit value of the first target VOR station which is successfully matched, wherein the station distance limit value comprises distance parameter values of each horizontal plane and each vertical plane limited according to the station level;
The VOR station simulation unit calculates the limit value of the distance between the vertical height and the horizontal height of the real-time airplane under the current special parameters according to the range limiting parameters of the first target VOR station successfully matched and according to the VOR station scene simulation range limiting calculation method, and the recalculation of the effective area of the first target VOR station signal is realized.
Through the steps, the processing of the signal effective area limit of the first target VOR station is finally realized, meanwhile, for other VOR stations which do not need to be processed in a special requirement, calculation is carried out according to the general limiting parameters, whether the signal effective area is in or not is judged, a comparison result mark in each period is returned in real time according to the calling period, and finally, the coexistence of the two states is realized.
The Isim platform is a comprehensive platform for modeling, developing, debugging and running simulation software. In the starting process of the Isim executing software, the simulation kernel and the simulation unit are dynamically created by reading the operation configuration parameters of the simulation kernel and the configuration parameters of the simulation unit, and the simulation kernel and the simulation unit are driven to be invoked and executed according to the configuration parameters.
The invocation of Isim platform emulation unit software is divided into the following three phases: at the beginning, the simulation unit is executed once in the execution process, and configuration files, data files and the like are read; in the iterative call stage, the states are mutually exclusive, and in which state to enter which process; in the operation stage, the simulation unit main function calculates and calls, and periodically operates, and the simulation unit periodic operation flow comprises input, message response processing, model calculation and calling and output.
It should be noted that, in the embodiment of the present invention, the range calculation method of the effective area of the VOR station signal in the simulation scene is run in the VOR simulation unit, and is used as a part of the realization of the overall function of the VOR simulation unit; the VOR simulation unit is operated and loaded on the Isim platform, and is uniformly scheduled by the Isim platform, so that the periodic calling of the VOR simulation unit is realized. Each period VOR simulation unit executes real-time calculation; for each cycle, the VOR scene simulation is based on the present cycle aircraft position parameters, including: aircraft longitude and latitude, altitude parameters, and station parameter data, including: the method comprises the steps of calculating the horizontal distance between an airplane and a vertical center line of the station and the height difference between the airplane and the station in the current period in real time according to the longitude and latitude of the station, the height, the station level and the station configurable parameters including distance limiting parameter values of each horizontal plane and each vertical plane; and comparing the horizontal distance between each period of the aircraft and the vertical center of the station with a horizontal distance limit value under the current aircraft height, and comparing the height difference between the aircraft and the station with a height limit value in the vertical direction of the station, wherein the aircraft is judged to be in the signal effective area of the VOR station only when the two comparison results simultaneously meet the condition of being smaller than the limit value, otherwise, the aircraft is outside the signal effective area of the VOR station.
Step 102, based on the parameter information of the first target VOR station, a signal effective area of the first target VOR station is constructed in the simulation scene, so that in the process of performing flight simulation of the simulation aircraft in the simulation scene, the simulation aircraft can receive the radio navigation signal transmitted by the first target VOR station under the condition that the simulation aircraft is in the signal effective area of the first target VOR station.
It should be noted that, in the embodiment of the present invention, the simulation scenario may be predefined according to the simulation requirement. The simulation scene is not particularly limited in the embodiment of the invention.
It should be noted that, in the embodiment of the present invention, the pilot may utilize the flight simulation device to perform flight simulation of the simulated aircraft in a predefined simulation scene. The simulated aircraft in the embodiment of the invention refers to a virtual aircraft for simulating a real aircraft, a helicopter or other aircrafts when a pilot performs flight simulation of the simulated aircraft in a simulation scene by using flight simulation equipment.
It can be understood that the mapping relationship exists between the simulation scene and the real scene in the embodiment of the invention.
Therefore, after the parameter information of the first target VOR station is obtained, the position and the elevation of the first target VOR station can be determined in the simulation scene according to the mapping relation between the simulation scene and the real scene based on the position information and the elevation information of the first target VOR station, and then the signal effective area of the first target VOR station can be constructed based on the position and the elevation of the first target VOR station in the simulation scene based on the level information of the first target VOR station.
Based on the parameter information of the first target VOR station, after the signal effective area of the first target VOR station is constructed in the simulation scene, a pilot can utilize flight simulation equipment to simulate the flight of a simulated aircraft in the simulation scene.
In the process of carrying out flight simulation of the simulated aircraft in the simulation scene, if the simulated aircraft is in a signal effective area of the first target VOR station, the simulated aircraft can receive a radio navigation signal transmitted by the first target VOR station, so that the VOR navigation simulation is realized.
According to the embodiment of the invention, after the parameter information of the first target VOR station including the level information, the position information and the elevation information is obtained, the signal effective area of the first target VOR station is constructed in the simulation scene based on the parameter information of the first target VOR station, so that in the simulation flight process of the simulation aircraft in the simulation scene, if the simulation aircraft is in the signal effective area of the first target VOR station, the radio navigation signal transmitted by the first target VOR station can be received, the signal effective area of the VOR station can be simulated more accurately in the simulation scene according to the level of the first target VOR station, the pilot can make more accurate interpretation and response to the radio navigation signal transmitted by the VOR station and received by the simulation aircraft in the simulation scene, the recognition capability of the pilot on the VOR station in the actual flight can be improved, the more real flight experience can be realized, and the flight training effect of the pilot can be improved.
As an alternative embodiment, constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station includes: under the condition that the level of the first target VOR station is determined to be the terminal level based on the level information of the first target VOR station, the first structure corresponding to the first target VOR station is constructed based on a predefined first distance, a predefined second distance and a predefined third distance in a simulation scene by taking the first target VOR station as a base point, and the inner area of the first structure is determined to be a signal effective area of the first target VOR station;
wherein the first structure is coaxial with the first target VOR station; the first structure body comprises a first segment body and a first cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the first spherical segment body is the same as that of the bottom surface of the first cylinder; the lowest point of the first segment is the base point;
the diameter of the bottom surface of the first segment body is a first distance; the height of the first sphere is a second distance; the height of the first cylinder is a third distance.
Fig. 2 is a front view of a first structure corresponding to a terminal-level first target VOR station in the simulation scene construction method provided by the present invention. When it is determined that the level of the first target VOR station is a terminal level based on the level information of the first target VOR station, a first structure corresponding to the terminal level first target VOR station is constructed in a simulation scene with the terminal level first target VOR station as a base point as shown in fig. 2.
It should be noted that, in the embodiment of the present invention, the first distanced 1 Second distanced 2 And a third distanced 3 May be determined based on a priori knowledge and/or actual conditions. In the embodiment of the invention, the first distance isd 1 Second distanced 2 And a third distanced 3 The specific value of (2) is not limited.
Optionally, a first distanced 1 The range of the value of (2) can be 40 sea to 50 sea;
second distanced 2 May range from 800ft to 1000ft;
third distanced 3 May range from 1000ft to 11000ft.
Preferably, the first distanced 1 The value of (2) can be 50 sea miles;
second distanced 2 May be 1000ft; accordingly, as shown in fig. 2, the vertical distance between the bottom surface of the first segment and the terminal-level first target VOR station is 1000ft;
third distanced 3 May be 11000ft; accordingly, as shown in FIG. 2, the vertical distance between the upper bottom surface of the first cylinder and the first target VOR station of the terminal stageAt a second distance fromd 2 From a third distanced 3 And 12000ft.
Wherein, the vertical distance refers to the distance between two points in the vertical direction. The vertical direction means a direction upward along a direction perpendicular to the horizontal plane.
It should be noted that, in the embodiment of the present invention, whether the simulated aircraft is in the signal effective area of the terminal-level first target VOR station may be determined based on the simulated flight data of the simulated aircraft. The simulated flight data may include position information and elevation information of the simulated aircraft in the simulated scene.
It should be noted that, in the embodiment of the present invention, the location information of the simulated aircraft in the simulated scene may include the geographical location coordinates (longitude and latitude) of the simulated aircraft in the simulated scene; the altitude information of the simulated aircraft in the simulated scene may include an altitude of the air pressure of the simulated aircraft in the simulated scene. It can be understood that the simulated flight data of the simulated aircraft has real-time performance, i.e. the position information and the elevation information of the simulated aircraft in the simulated scene dynamically change with time.
Fig. 3 is a schematic flow chart of determining whether a simulated aircraft is in a signal effective area of a terminal-level first target VOR station in the simulation scene construction method provided by the invention. As shown in fig. 3, the parameter information of the terminal-level first target VOR station may be read from the navigation database, and the simulated flight data of the simulated aircraft may be read from the flight system of the simulated aircraft.
Based on the parameter information of the terminal-level first target VOR station and the simulated flight data of the simulated aircraft, the horizontal distance between the simulated aircraft and the terminal-level first target VOR station in the simulated scene can be calculated according to the WGS-84 model; based on the parameter information of the terminal-level first target VOR station and the simulated flight data of the simulated aircraft, the height difference between the simulated aircraft and the terminal-level first target VOR station can be calculated through a numerical calculation mode.
Among them, WGS-84 (World Geodetic System 1984) is an earth coordinate system, and is widely used in the fields of Global Positioning System (GPS), map making, and the like. The WGS-84 model provides a consistent way to describe the location on earth worldwide, and the WGS-84 model can calculate the distance and azimuth between two points on earth using large sphere trigonometry based on an ellipsoid and a set of parameters defining the shape and size of the earth.
Based on the horizontal distance and the height difference between the simulated aircraft and the terminal-level first target VOR station, it can be determined whether the simulated aircraft is located in the first cylinder in the first structure corresponding to the terminal-level first target VOR station in the simulated scene, and it can also be determined whether the simulated aircraft is located in the first segment in the first structure corresponding to the terminal-level first target VOR station in the simulated scene.
Fig. 4 is a schematic flow chart of determining a boundary limit value of a first segment in a first structural body corresponding to a terminal-level first target VOR station in a horizontal direction in the simulation scene construction method provided by the invention.
As shown in FIG. 3, the radius of the first segment Meeting Pythagorean theorem->. Wherein (1)>Representing +.about.on the first segment>A horizontal distance from the point to the central axis of the first segment; />Representing radius +.>Minus->Points and base pointsAbsolute value of the vertical distance between them.
As shown in FIG. 3, inIn the case of->Therefore, as shown in FIG. 4, the first distance-based +.>Second distance->The Pythagorean theorem can calculate the radius of the first segment>。
Based on the radius of the first segmentAnd simulating the height difference between the aircraft and the terminal-level first target VOR station, and calculating a boundary limit value in the horizontal direction corresponding to the height difference.
Comparing the boundary limit value in the horizontal direction corresponding to the height difference value with the horizontal distance between the simulated aircraft and the terminal-level first target VOR station, it can be determined whether the simulated aircraft is located in the first segment in the first structure corresponding to the terminal-level first target VOR station in the simulated scene.
Under the condition that the simulated aircraft is not positioned in the first cylinder and the first sphere in the first structural body corresponding to the terminal-level first target VOR station in the simulated scene, the condition that the simulated aircraft is not positioned in a signal effective area of the terminal-level first target VOR station in the simulated scene can be determined, and the simulated aircraft can not receive the radio navigation signal emitted by the terminal-level first target VOR station;
In the case that the simulated aircraft is determined to be located in the first cylinder or the first sphere in the first structural body corresponding to the terminal-level first target VOR station in the simulated scene, it may be determined that the simulated aircraft is located in the signal effective area of the terminal-level first target VOR station in the simulated scene, and the simulated aircraft may be able to receive the radio navigation signal transmitted by the terminal-level first target VOR station.
As an alternative embodiment, constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station includes: under the condition that the level of the first target VOR station is determined to be the low-altitude route level based on the level information of the first target VOR station, constructing a second structure body corresponding to the first target VOR station based on a predefined fourth distance, a predefined fifth distance and a predefined sixth distance in a simulation scene by taking the first target VOR station as a base point, and determining the inner area of the second structure body as a signal effective area of the first target VOR station;
wherein the second structure is coaxial with the first target VOR station; the second structure body comprises a second segment body and a second cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the second spherical segment body is the same as that of the bottom surface of the second cylinder; the lowest point of the first segment is the base point;
The diameter of the bottom surface of the second segment body is a fourth distance; the height of the second segment is a fifth distance; the height of the second cylinder is a sixth distance; the sixth distance is greater than the third distance.
Fig. 5 is a front view of a second structure corresponding to a first target VOR station at a low altitude course level in the simulation scene construction method provided by the present invention. When it is determined that the level of the first target VOR station is a low-altitude course level based on the level information of the first target VOR station, a second structure corresponding to the low-altitude course level first target VOR station constructed in the simulation scene is shown in fig. 5 with the low-altitude course level first target VOR station as a base point.
It should be noted that, in the embodiment of the present invention, the fourth distanced 4 Fifth distanced 5 And a sixth distanced 6 May be determined based on a priori knowledge and/or actual conditions. For the fourth distance in the embodiment of the inventiond 4 Fifth distanced 5 And a sixth distanced 6 The specific value of (2) is not limited.
Optionally, a fourth distanced 4 The range of the value of (2) can be 70 sea to 80 sea;
fifth distanced 5 May range from 800ft to 1000ft;
sixth distanced 6 The range of values for (c) may be 16000ft to 17000ft.
Preferably, the fourth distance d 4 The value of (2) can be 80 sea-knotweed;
fifth distanced 5 May be 1000ft; accordingly, as shown in fig. 5, the vertical distance between the bottom surface of the second segment and the terminal-level first target VOR station is 1000ft;
sixth distanced 6 May be 17000ft; accordingly, as shown in FIG. 5, the vertical distance between the upper bottom surface of the second cylinder and the terminal-level first target VOR station is a fifth distanced 5 From a sixth distanced 6 And 18000ft.
It should be noted that, in the embodiment of the present invention, whether the simulated aircraft is in the signal effective area of the first target VOR station of the low-altitude route stage may be determined based on the simulated flight data of the simulated aircraft. The method for judging whether the simulated aircraft is in the signal effective area of the first low-altitude route stage target VOR station is the same as the method for judging whether the simulated aircraft is in the signal effective area of the first terminal stage target VOR station, so that the specific steps for judging whether the simulated aircraft is in the signal effective area of the first low-altitude route stage target VOR station can be seen from the content of the above embodiments, and the embodiments of the present invention are not repeated.
As an alternative embodiment, constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station includes: under the condition that the level of the first target VOR station is determined to be the high-altitude route level based on the level information of the first target VOR station, a third structure body corresponding to the first target VOR station is constructed in a simulation scene based on a predefined seventh distance to a fifteenth distance by taking the first target VOR station as a base point, and an inner area of the third structure body is determined to be a signal effective area of the first target VOR station;
Wherein the third structure is coaxial with the first target VOR station; the third structure body comprises a third segment body, a third cylinder, a fourth cylinder, a fifth cylinder and a sixth cylinder which are sequentially connected from bottom to top;
the diameter of the bottom surface of the third segment is the same as that of the bottom surface of the third cylinder; the lowest point of the third segment is the base point;
the diameter of the bottom surface of the third segment body is a seventh distance; the diameter of the bottom surface of the fourth cylinder is an eighth distance; the diameter of the bottom surface of the fifth cylinder is a ninth distance; the diameter of the bottom surface of the sixth cylinder is a tenth distance;
the height of the third segment is an eleventh distance; the height of the third cylinder is a twelfth distance; the height of the fourth cylinder is a thirteenth distance; the height of the fifth cylinder is a fourteenth distance; the height of the sixth cylinder is a fifteenth distance;
the seventh distance, the eighth distance and the ninth distance are sequentially increased; the tenth distance is less than the ninth distance and greater than the eighth distance; the twelfth distance, the thirteenth distance, and the fourteenth distance increase in order, and the fifteenth distance is smaller than the fourteenth distance.
Fig. 6 is a front view of a third structure corresponding to a first target VOR station at an altitude route level in the simulation scene construction method provided by the present invention. When it is determined that the level of the first target VOR station is an altitude route level based on the level information of the first target VOR station, a third structure corresponding to the altitude route level first target VOR station constructed in the simulation scene is shown in fig. 6 with the altitude route level first target VOR station as a base point.
Note that, in the embodiment of the present invention, the seventh distanced 7 Eighth distanced 8 Ninth distanced 9 Tenth distanced 10 Eleventh distanced 11 Twelfth distanced 12 Thirteenth distanced 13 Fourteenth distanced 14 Fifteenth distanced 15 May be determined based on a priori knowledge and/or actual conditions. For the seventh distance in the embodiment of the inventiond 7 Eighth distanced 8 Ninth distanced 9 Tenth distanced 10 Eleventh distanced 11 Twelfth distanced 12 Thirteenth distanced 13 Fourteenth distanced 14 Fifteenth distanced 15 The specific value of (2) is not limited.
Optionally, a seventh distanced 7 The range of the value of (2) can be 70 sea to 80 sea;
eighth distanced 8 The range of the value of (2) can be 190 sea to 200 sea;
ninth distanced 9 The range of the value of (2) can be 250 to 260 sea miles;
tenth distanced 10 The range of the value of (2) can be 190 sea to 200 sea;
eleventh distanced 11 May range from 800ft to 1000ft;
twelfth distanced 12 May range from 12500ft to 13500ft;
thirteenth distanced 13 May range from 1500ft to 3500ft;
fourteenth distanced 14 May range from 25000ft to 27000ft;
fifteenth distanced 15 Can range from 13000ft to 15000ft;
Preferably, the seventh distanced 7 The value of (2) can be 80 sea-knotweed;
eighth distanced 8 The value of (2) can be 200 sea miles;
ninth distanced 9 The value of (2) can be 260 knotweed, sea;
tenth distanced 10 The value of (2) can be 200 sea miles;
eleventh distanced 11 Is taken from (a)The value may be 1000ft; accordingly, as shown in fig. 6, the vertical distance between the bottom surface of the third segment and the first target VOR station of the above-mentioned high altitude route stage is 1000ft;
twelfth distanced 12 May be 13500ft; accordingly, as shown in FIG. 6, the vertical distance between the upper bottom surface of the third cylinder and the first target VOR station of the high-altitude course stage is the eleventh distanced 11 Distance from twelfth distanced 12 Sum 14500ft;
thirteenth distanced 13 May be 3500ft; accordingly, as shown in FIG. 6, the vertical distance between the upper bottom surface of the fourth cylinder and the first target VOR station of the high-altitude course stage is the eleventh distanced 11 Twelfth distanced 12 Thirteenth distanced 13 Sum 18000ft;
fourteenth distanced 14 May be 27000ft; accordingly, as shown in FIG. 6, the vertical distance between the upper bottom surface of the fourth cylinder and the first target VOR station of the high-altitude course stage is the eleventh distanced 11 Twelfth distance d 12 Thirteenth distanced 13 Fourteenth distanced 14 The sum is 45000ft;
fifteenth distanced 15 May be 15000ft; accordingly, as shown in FIG. 6, the vertical distance between the upper bottom surface of the fourth cylinder and the first target VOR station of the high-altitude course stage is the eleventh distanced 11 Twelfth distanced 12 Thirteenth distanced 13 Fourteenth distanced 14 Fifteenth distanced 15 The sum is 60000ft.
It should be noted that, in the embodiment of the present invention, whether the simulated aircraft is in the signal effective area of the first target VOR station at the high altitude route stage may be determined based on the simulated flight data of the simulated aircraft. The method for judging whether the simulated aircraft is in the signal effective area of the first target VOR station at the high altitude route stage is the same as the method for judging whether the simulated aircraft is in the signal effective area of the first target VOR station at the terminal stage, so that the specific steps for judging whether the simulated aircraft is in the signal effective area of the first target VOR station at the high altitude route stage can be seen from the content of each embodiment, and the embodiments of the invention are not repeated.
Fig. 7 is a schematic diagram of signal effective areas of first target VOR stations with different levels in the simulation scene construction method provided by the present invention. The comparison of the signal effective area of the terminal-level first target VOR station, the signal effective area of the low-altitude way-level first target VOR station, and the signal effective area of the high-altitude way-level first target VOR station is shown in fig. 7.
As an alternative embodiment, after constructing the signal active area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station, the method further comprises: in the process of carrying out flight simulation of the simulated aircraft in the simulation scene, obtaining simulated flight data of the simulated aircraft, wherein the simulated flight data comprises position information and elevation information of the simulated aircraft in the simulation scene;
adding disturbance signals to radio navigation signals transmitted by a second target VOR station and received by the simulated aircraft under the condition that the simulated aircraft is positioned in a signal interference area of the second target VOR station in a simulated scene based on the simulated flight data;
the signal interference area of the second target VOR station is positioned in the signal effective area of the second target VOR station; in the simulation scene, under the condition that the simulation aircraft is in a signal effective area of the second target VOR station, the simulation aircraft can receive radio navigation signals transmitted by the second target VOR station;
the second target VOR station comprises each VOR station in the real scene corresponding to the simulation scene, or the second target VOR station is determined based on the input of the user; the first target VOR station comprises a second target VOR station;
The boundary of the signal interference area of the second target VOR station comprises the side surface and the bottom surface of the first cone corresponding to the second target VOR station and the side surface of the second cone corresponding to the second target VOR station; the vertexes of the first cone and the second cone are vertexes of a second target VOR station, the first cone and the second cone are coaxial with the second target VOR station, and the bottom surfaces of the first cone and the second cone are positioned above the second target VOR station; the vertex angle of the second cone is smaller than that of the first cone; the heights of the first cone and the second cone are determined based on the second target VOR station; the apex angle of the first cone and the second cone is predefined.
It should be noted that, in a real scene, there is usually a signal interference area, in which a radio navigation signal emitted by a VOR station may be disturbed or interfered by other signals, so that, in a case where an aircraft is in the signal interference area, a radio navigation signal emitted by the VOR station and received by a signal receiver carried on the aircraft has certain fluctuation, which further makes it difficult for the aircraft to accurately determine a position where the aircraft is located and/or a position of the VOR station based on the radio navigation signal emitted by the VOR station.
And a signal blind area exists in the signal interference area. Complete loss of the radio navigation signal transmitted by the VOR station occurs in the above signal blind zone.
In the traditional VOR navigation simulation method, the VOR station closest to the simulated aircraft is indicated in real time only in a cabin indicator of the simulated aircraft, and the VOR station closest to the simulated aircraft is always indicated in real time in the process of the simulated aircraft flying to the back station in a simulation scene. Under the condition that the simulated aircraft flies into the signal effective area of the VOR station closest to the simulation scene, the simulated aircraft can receive the radio navigation signal transmitted by the VOR station closest to the simulation scene, so that the simulated aircraft can determine an azimuth angle according to the received radio navigation signal, and the indicated azimuth line is indicated to the back station.
Therefore, in the conventional VOR navigation simulation method, the situation that the radio navigation signal transmitted by the VOR station has a signal interference area is not considered, and the radio navigation signal with the azimuth transition is only output when the flight simulation equipment passes through the VOR station in the simulation scene, so that it is difficult to provide information indication in the real scene for the pilot performing flight simulation training. Therefore, it is difficult for the flight simulation apparatus in the related art to simulate the VOR navigation in the actual scene more accurately, the reality of the flight simulation is not high, and the flight experience and the flight training effect of the pilot are poor.
Specifically, during the process of performing flight simulation of the simulated aircraft in the simulation scene by using the flight simulation equipment, the pilot can acquire simulated flight data of the simulated aircraft from the flight system of the simulated aircraft. The simulated flight data may include position information and elevation information of the simulated aircraft in the simulated scene.
After the simulated flight data of the simulated aircraft are obtained, whether the simulated aircraft is located in the signal interference area of the second target VOR station in the simulated scene can be judged in a numerical calculation mode based on the position information and the elevation information of the simulated aircraft and the boundary information of the signal interference area of each VOR station.
In the case that the simulated aircraft is determined to be located in the signal interference area of the second target VOR station in the simulated scene, a disturbance signal can be added to the radio navigation signal sent by the second target VOR station and received by the simulated aircraft, so that instability of the radio navigation signal sent by the VOR station in the real scene is simulated.
Optionally, the range of values of the apex angle of the first cone comprises 15 ° to 25 °; the range of the vertex angle of the second cone comprises 12 degrees to 15 degrees; the apex angle of the first cone is larger than that of the second cone.
Fig. 8 is a front view of a signal interference area and a signal blind area of a second target VOR station in the simulation scene construction method provided by the present invention. The signal interference region of the second target VOR station is shown in fig. 8.
It should be noted that, the simulation of the signal interference area of the VOR station is to remind the pilot of the radio navigation signal interference that may occur, and take corresponding measures to ensure the accuracy and safety of the navigation operation. The range of signal interference regions varies from one VOR station to another. In actual flight, the pilot knows and adapts the signal interference area of the VOR station according to the flight specification and the flight guidance, and adjusts the flight plan and the navigation operation according to the signal interference area.
According to the embodiment of the invention, the vertex angles of the first cone and the second cone corresponding to the second target VOR station can be predefined according to the actual requirement of flight simulation and/or the actual condition of the second target VOR station.
Optionally, in the embodiment of the present invention, the vertex angles of the first cone and the second cone corresponding to the second target VOR station may be determined based on the input of the user.
It should be noted that, in the embodiment of the present invention, after the vertex angles of the first cone and the second cone input by the user are received, the vertex angles of the first cone and the second cone may be written into a config. Xml file, and loaded by the resolving module, so as to implement the adjustability of the signal interference area range of the second target VOR station. By the method, the range of the signal interference area of the second target VOR station can be changed in real time by directly loading the execution program under the condition of no compiling, and the maintenance is convenient.
According to the embodiment of the invention, in the process of carrying out flight simulation of the simulated aircraft in the simulation scene, based on the simulated flight data, under the condition that the simulated aircraft in the simulation scene is positioned in the signal interference area of the second target VOR station, the disturbance signal is added to the radio navigation signal transmitted by the second target VOR station and received by the simulated aircraft, so that the simulation of the signal interference area of the VOR station in the actual scene is realized, the instability of the radio navigation signal transmitted by the VOR station in the actual scene can be more truly simulated, the instability of the radio navigation signal transmitted by the VOR station can be experienced in the pilot flight simulation, and therefore, the pilot can better read, cope with and adapt to the instability of the radio navigation signal transmitted by the VOR station, more real flight experience can be provided for the pilot in the flight simulation, and the flight training effect can be improved.
As an alternative embodiment, after obtaining the simulated flight data of the simulated aircraft, the method further comprises: cutting off communication between the simulated aircraft and the second target VOR station under the condition that the simulated aircraft is determined to be positioned in the signal blind zone of the second target VOR station in the simulated scene based on the simulated flight data;
Wherein the boundary of the signal blind zone of the second target VOR station includes: the side and bottom surfaces of the second cone corresponding to the second target VOR station.
Specifically, after the simulated flight data of the simulated aircraft are obtained, whether the simulated aircraft is located in the signal blind area of the second target VOR station in the simulated scene can be judged by a numerical calculation mode based on the position information and the elevation information of the simulated aircraft and the boundary information of the signal blind area of the second target VOR station.
In the case that the simulated aircraft is determined to be located in the signal blind area of the second target VOR station in the simulated scene, the radio navigation signal emitted by the second target VOR station can be shielded, so that disappearance of the radio navigation signal emitted by the VOR station in the real scene is simulated.
Specifically, the signal blind zone of the second target VOR station is shown in fig. 8.
It should be noted that, the simulation of the signal blind area of the VOR station is to alert the pilot to the disappearance of the radio pilot signal that may occur. The pilot needs to know the existence of the signal blind zone of the VOR station and make corresponding adjustments according to the equipment guidelines (e.g., navigation equipment specifications specified by the flight procedure, etc.). The pilot refers to the relevant aviation data and the specification of navigation equipment and knows the signal blind area of the VOR station used.
In the embodiment of the invention, the vertex angle of the second cone corresponding to the second target VOR station can be predefined according to the actual requirement of flight simulation and/or the actual condition of the second target VOR station.
Optionally, in the embodiment of the present invention, the vertex angle of the second cone corresponding to the second target VOR station may be determined based on the input of the user.
It should be noted that, in the embodiment of the present invention, after receiving the vertex angle of the second cone input by the user, the vertex angle of the second cone may also be written into a config. Xml file, and loaded by the resolving module, so as to implement adjustability of the signal blind area range of the second target VOR station. By the method, the signal blind area range of the second target VOR station can be changed in real time by directly loading the execution program under the condition of no compiling, and the maintenance is convenient.
As an alternative embodiment, adding a disturbance signal to the radio navigation signal transmitted by the second target VOR station received by the emulated aircraft includes: and adding a periodic disturbance signal to the radio navigation signal transmitted by the second target VOR station received by the simulation aircraft, or adding a random disturbance signal to the radio navigation signal transmitted by the second target VOR station received by the simulation aircraft.
It should be noted that, after the aircraft flies into the signal interference area of the second target VOR station in the real scene, the radio navigation signal transmitted by the second target VOR station and received by the signal receiver carried on the aircraft has certain fluctuation, and the fluctuation can be represented as the fluctuation of the pointer in the aircraft cabin indicator or the interference of the display content on the display.
In the related art, when the simulated aircraft is in the simulated scene to simulate the flight, under the condition that the simulated aircraft is determined to be in the signal effective area of the second target VOR station, the signal receiver in the simulated aircraft receives the radio navigation signal sent by the second target VOR station, and the situation that the radio navigation signal sent by the second target VOR station has the signal interference area is not considered, and the situation that the signal receiver in the simulated aircraft receives the radio navigation signal comprising the disturbance signal is not considered.
Therefore, in the embodiment of the invention, under the condition that the simulation aircraft in the simulation scene is determined to be positioned in the signal interference area of the second target VOR station based on the horizontal distance between the simulation aircraft and the second target VOR station in the simulation scene, the elevation information of the simulation aircraft and the parameter information of the second target VOR station, a periodic or random numerical sequence is generated by establishing a mathematical function and taking an algorithm and a set parameter as the basis, and is used for controlling the fluctuation of a pointer in a cabin indicator in the simulation aircraft.
According to the embodiment of the invention, in the process of carrying out flight simulation of the simulated aircraft in the simulation scene, based on the simulated flight data, under the condition that the simulated aircraft in the simulation scene is positioned in the signal blind area of the second target VOR station, the communication between the simulated aircraft and the second target VOR station is interrupted, the simulation of the signal blind area of the VOR station in the actual scene is realized, the disappearance of the radio navigation signal emitted by the VOR station in the actual scene can be more truly simulated, the disappearance of the radio navigation signal emitted by the VOR station can be experienced in the pilot flight simulation, and therefore, the pilot can better read, respond and adapt to the disappearance of the radio navigation signal emitted by the VOR station, more real flight experience can be provided for the pilot in the flight simulation, and the flight training effect of the pilot can be improved.
Fig. 9 is a schematic structural diagram of a simulation scene construction apparatus provided by the present invention. The simulation scene construction apparatus provided by the present invention will be described below with reference to fig. 9, and the simulation scene construction apparatus described below and the simulation scene construction method provided by the present invention described above may be referred to correspondingly. As shown in fig. 9, a data acquisition module 901 and a scene construction module 902.
The data acquisition module 901 is configured to acquire parameter information of a first target VOR station of a vhf omni-directional beacon, where the parameter information includes level information, location information, and elevation information of the first target VOR station;
the scene construction module 902 is configured to construct, in a simulation scene, a signal effective area of the first target VOR station based on parameter information of the first target VOR station, so that in a process of performing flight simulation of the simulation aircraft in the simulation scene, the simulation aircraft can receive a radio navigation signal transmitted by the first target VOR station when the simulation aircraft is in the signal effective area of the first target VOR station, where the first target VOR station includes each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
Specifically, the data acquisition module 901 and the scene construction module 902 are electrically connected.
According to the simulation scene construction device, after the parameter information of the first target VOR station including the level information, the position information and the elevation information is obtained, the signal effective area of the first target VOR station is constructed in the simulation scene based on the parameter information of the first target VOR station, so that in the simulation flight process of the simulation aircraft in the simulation scene, if the simulation aircraft is in the signal effective area of the first target VOR station, the radio navigation signal emitted by the first target VOR station can be received, the signal effective area of the VOR station can be simulated more accurately in the simulation scene according to the level of the first target VOR station, the pilot can read and respond to the radio navigation signal emitted by the VOR station received by the simulation aircraft more accurately and more in accordance with the actual scene, the recognition capability of the pilot on the VOR station in the actual flight can be improved, the pilot can realize more real flight experience, and the flight training effect can be improved.
Fig. 10 illustrates a physical structure diagram of an electronic device, as shown in fig. 10, which may include: a processor 1010, a communication interface (Communications Interface) 1020, a memory 1030, and a communication bus 1040, wherein the processor 1010, the communication interface 1020, and the memory 1030 communicate with each other via the communication bus 1040. Processor 1010 may invoke logic instructions in memory 1030 to perform a simulation scenario construction method comprising: acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station; and constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station, so that in the process of carrying out flight simulation of the simulation aircraft in the simulation scene, the simulation aircraft can receive radio navigation signals transmitted by the first target VOR station under the condition that the simulation aircraft is positioned in the signal effective area of the first target VOR station, wherein the first target VOR station comprises each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
Further, the logic instructions in the memory 1030 described above may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Based on the content of the above embodiments, the present invention further provides a simulation scene construction system, including a flight simulation device and the electronic device described above; the flight simulation equipment is electrically connected with the electronic equipment; the flight simulation equipment is used for carrying out flight simulation of the simulated aircraft in the simulation scene.
Specifically, the simulation scene construction system in the embodiment of the invention comprises the flight simulation equipment and the electronic equipment. The flight simulation equipment can be used for carrying out flight simulation of the simulated aircraft in the simulation scene, and the electronic equipment can be used for executing the simulation scene construction method provided by the invention.
The specific steps of the electronic device for executing the simulation scene construction method provided by the invention can refer to the content of each embodiment, and the embodiments of the invention are not repeated.
According to the navigation simulation system provided by the embodiment of the invention, after the parameter information of the first target VOR station including the level information, the position information and the elevation information is obtained, the signal effective area of the first target VOR station is constructed in the simulation scene based on the parameter information of the first target VOR station, so that in the simulation flight process of the simulation aircraft in the simulation scene, if the simulation aircraft is in the signal effective area of the first target VOR station, the radio navigation signal emitted by the first target VOR station can be received, the signal effective area of the VOR station can be simulated more accurately in the simulation scene according to the level of the VOR station, the pilot can read and respond to the radio navigation signal emitted by the simulation aircraft in a more accurate and more practical scene, the recognition capability of the pilot to the VOR station in the actual flight can be improved, the more real flight experience can be realized, and the flight training effect can be improved.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer can execute a simulation scene construction method provided by the above methods, and the method includes: acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station; and constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station, so that in the process of carrying out flight simulation of the simulation aircraft in the simulation scene, the simulation aircraft can receive radio navigation signals transmitted by the first target VOR station under the condition that the simulation aircraft is positioned in the signal effective area of the first target VOR station, wherein the first target VOR station comprises each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method for constructing a simulation scene provided by the above methods, the method comprising: acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station; and constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station, so that in the process of carrying out flight simulation of the simulation aircraft in the simulation scene, the simulation aircraft can receive radio navigation signals transmitted by the first target VOR station under the condition that the simulation aircraft is positioned in the signal effective area of the first target VOR station, wherein the first target VOR station comprises each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The simulation scene construction method is characterized by comprising the following steps of:
acquiring parameter information of a first target very high frequency omni-directional beacon (VOR) station, wherein the parameter information comprises level information, position information and elevation information of the first target VOR station;
and constructing a signal effective area of the first target VOR station in a simulation scene based on the parameter information of the first target VOR station, so that in the process of carrying out flight simulation of a simulation aircraft in the simulation scene, the simulation aircraft can receive a radio navigation signal transmitted by the first target VOR station under the condition that the simulation aircraft is positioned in the signal effective area of the first target VOR station, wherein the first target VOR station comprises each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
2. The method for constructing a simulation scene according to claim 1, wherein the constructing a signal effective area of the first target VOR station in a simulation scene based on the parameter information of the first target VOR station comprises:
under the condition that the level of the first target VOR station is determined to be the terminal level based on the level information of the first target VOR station, constructing a first structural body corresponding to the first target VOR station based on a predefined first distance, a predefined second distance and a predefined third distance in the simulation scene by taking the first target VOR station as a base point, and determining an inner area of the first structural body as a signal effective area of the first target VOR station;
wherein the first structure is coaxial with the first target VOR station; the first structure body comprises a first segment body and a first cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the first spherical segment is the same as that of the bottom surface of the first cylinder; the lowest point of the first segment is the base point;
the diameter of the bottom surface of the first segment body is the first distance; the height of the first segment is the second distance; the height of the first cylinder is the third distance.
3. The method for constructing a simulation scene according to claim 2, wherein the constructing a signal effective area of the first target VOR station in the simulation scene based on the parameter information of the first target VOR station comprises:
under the condition that the level of the first target VOR station is determined to be a low-altitude route level based on the level information of the first target VOR station, constructing a second structure body corresponding to the first target VOR station based on a predefined fourth distance, a predefined fifth distance and a predefined sixth distance in the simulation scene by taking the first target VOR station as a base point, and determining an inner area of the second structure body as a signal effective area of the first target VOR station;
wherein the second structure is coaxial with the first target VOR station; the second structure body comprises a second spherical segment body and a second cylinder which are sequentially connected from bottom to top; the diameter of the bottom surface of the second spherical segment is the same as that of the bottom surface of the second cylinder; the lowest point of the first segment is the base point;
the diameter of the bottom surface of the second segment is the fourth distance; the height of the second segment is the fifth distance; the height of the second cylinder is the sixth distance; the sixth distance is greater than the third distance.
4. The method for constructing a simulation scene according to claim 1, wherein the constructing a signal effective area of the first target VOR station in a simulation scene based on the parameter information of the first target VOR station comprises:
under the condition that the level of the first target VOR station is determined to be the high-altitude route level based on the level information of the first target VOR station, constructing a third structure body corresponding to the first target VOR station in the simulation scene based on a predefined seventh distance to a fifteenth distance by taking the first target VOR station as a base point, and determining an inner area of the third structure body as a signal effective area of the first target VOR station;
wherein the third structure is coaxial with the first target VOR station; the third structure body comprises a third segment body, a third cylinder, a fourth cylinder, a fifth cylinder and a sixth cylinder which are sequentially connected from bottom to top;
the diameter of the bottom surface of the third segment is the same as that of the bottom surface of the third cylinder; the lowest point of the third segment is the base point;
the bottom surface diameter of the third segment is the seventh distance; the diameter of the bottom surface of the fourth cylinder is an eighth distance; the diameter of the bottom surface of the fifth cylinder is a ninth distance; the diameter of the bottom surface of the sixth cylinder is a tenth distance;
The height of the third segment is an eleventh distance; the height of the third cylinder is a twelfth distance; the height of the fourth cylinder is a thirteenth distance; the height of the fifth cylinder is a fourteenth distance; the height of the sixth cylinder is a fifteenth distance;
the seventh distance, the eighth distance, and the ninth distance increase in order; the tenth distance is less than the ninth distance and greater than the eighth distance; the twelfth distance, the thirteenth distance, and the fourteenth distance increase in order, and the fifteenth distance is smaller than the fourteenth distance.
5. The method for constructing a simulation scene according to claim 1, wherein after constructing a signal effective area of the first target VOR station in a simulation scene based on the parameter information of the first target VOR station, the method further comprises:
in the process of carrying out flight simulation of the simulated aircraft in the simulation scene, obtaining simulated flight data of the simulated aircraft, wherein the simulated flight data comprises position information and elevation information of the simulated aircraft in the simulation scene;
adding a disturbance signal to a radio navigation signal transmitted by a second target VOR station received by the simulated aircraft in the simulated scene if the simulated aircraft is determined to be located within a signal interference zone of the second target VOR station based on the simulated flight data;
The signal interference area of the second target VOR station is positioned in the signal effective area of the second target VOR station; the simulated aircraft in the simulated scene is capable of receiving radio navigation signals transmitted by the second target VOR station when the simulated aircraft is in a signal effective area of the second target VOR station;
the second target VOR station comprises each VOR station in the real scene corresponding to the simulation scene, or the second target VOR station is determined based on the input of the user; the first target VOR station includes the second target VOR station;
the boundary of the signal interference area of the second target VOR station comprises a side surface and a bottom surface of a first cone corresponding to the second target VOR station and a side surface of a second cone corresponding to the second target VOR station; the vertexes of the first cone and the second cone are vertexes of the second target VOR station, the first cone and the second cone are coaxial with the second target VOR station, and the bottom surfaces of the first cone and the second cone are positioned above the second target VOR station; the vertex angle of the second cone is smaller than that of the first cone; the heights of the first cone and the second cone are both determined based on the second target VOR station; the apex angle of the first cone and the second cone is predefined.
6. The method of constructing a simulated scene according to claim 5, wherein after said obtaining simulated flight data of said simulated aircraft, said method further comprises:
cutting off communication between the simulated aircraft and the second target VOR station in the case where it is determined that the simulated aircraft is located within a signal blind zone of the second target VOR station in the simulated scene based on the simulated flight data;
wherein the boundary of the signal blind zone of the second target VOR station includes: and the side surface and the bottom surface of a second cone corresponding to the second target VOR station.
7. A simulation scene construction apparatus, comprising:
the data acquisition module is used for acquiring parameter information of the target very high frequency omni-directional beacon VOR station, wherein the parameter information comprises level information, position information and elevation information of a first target VOR station;
the scene construction module is configured to construct a signal effective area of the first target VOR station in a simulation scene based on parameter information of the first target VOR station, so that in a process of performing flight simulation of a simulated aircraft in the simulation scene, the simulated aircraft can receive a radio navigation signal transmitted by the first target VOR station when the simulated aircraft is in the signal effective area of the first target VOR station, where the first target VOR station includes each VOR station in a real scene corresponding to the simulation scene, or the first target VOR station is determined based on input of a user.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the simulation scenario construction method according to any one of claims 1 to 6 when the program is executed by the processor.
9. A navigation simulation system, comprising: flight simulation device and electronic device according to claim 8; the flight simulation equipment is electrically connected with the electronic equipment;
the flight simulation equipment is used for carrying out flight simulation of the simulated aircraft in the simulation scene.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the simulation scenario construction method according to any one of claims 1 to 6.
CN202410117903.1A 2024-01-29 2024-01-29 Simulation scene construction method, device, navigation simulation system, equipment and medium Active CN117688779B (en)

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