CN112711849A - Internet-of-things simulation platform for air refueling process - Google Patents
Internet-of-things simulation platform for air refueling process Download PDFInfo
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Abstract
The invention belongs to the technical field of computer simulation, and particularly relates to an air refueling process networking simulation platform. The networking simulation platform comprises a comprehensive control unit (1), a voice call unit (2) and a network communication unit (3); the comprehensive control unit (1) comprises an operation management unit (101), a situation display unit (102) and a data recording playback unit (103), wherein the situation display unit is in data connection with the operation management unit (101); the operation management unit (101) is connected with the external sub-platform through the network communication unit (3); the operation management unit (101) adopts a workstation configured with a reflective memory card to realize network state monitoring, multi-machine comprehensive deployment, real-time key parameter display and fault mode injection; the situation display unit (102) is used for realizing two-dimensional and three-dimensional situation display and visual angle switching; a data recording/playback unit (103) is used for data recording and playback. The invention is used for completing quick connection, test, control, test and disconnection, vividly simulating and reproducing the whole refueling process.
Description
Technical Field
The invention belongs to the technical field of computer simulation, and particularly relates to an air refueling process networking simulation platform.
Background
Current airborne fueling can be divided into hard and soft types. The former is also called probe rod type, and the latter is called probe-taper sleeve type. Airborne fueling is quite dangerous, unlike ground fueling, and must operate strictly following fueling specifications. Regardless of the type of aerial refueling equipment or mode, the modern aerial refueling still requires the correct operation of a pilot, and the close cooperation of a refueling machine and a refueling machine is required to safely complete the task. Therefore, the stability operating characteristics of the refueling/receiving machine become important factors influencing the difficulty degree of the aerial refueling task. In order to evaluate the flight quality of the refueling mode of the refueling system of the refueling machine, an air refueling process networking simulation platform needs to be built, the requirement of the refueling machine refueling system can be met in the whole air refueling process (including convergence, butt joint, refueling and separation) through verification, and operation training is carried out on a pilot and a refueling operator.
The prior fuel dispenser training system is usually realized by newly building a set of complete simulator, and has single task and insignificant economic benefit. Because the oil receiving machine generally adopts simple equipment for simulation, the simulation fidelity is not high, and the training effect is general.
Disclosure of Invention
The purpose of the invention is: on the premise of ensuring that the atomic platform independently operates to complete the test, the framework of the original equipment is not changed as much as possible by constructing the air refueling process networking simulation platform, the rapid connection, the test, the control, the test and the disconnection are completed, and the whole refueling process is vividly simulated and reproduced.
According to the invention, the network communication unit is set up, and the flight simulation systems of the sub-platforms are connected to form the oiling/receiving machine flight parameter interactive star network. In order to ensure the real-time performance of long-distance data transmission, a mode of a reflective memory switch and a single-mode reflective memory card is adopted, the flight simulation systems of the original sub-platforms are connected through single-mode optical fibers and used for interaction of flight parameters, meanwhile, a comprehensive control unit operation management computer is accessed to the real-time network, and initial setting, environment setting, operation control, state monitoring, data recording, situation display and the like are uniformly carried out on each sub-platform.
And the voice communication units are set up to connect the communication systems of the sub-platforms to form the voice communication star network of the oil adding/receiving machine networking simulation platform. In order to ensure the conversation quality of long-distance transmission, the form of audio optical transceiver and optical fiber is adopted. Meanwhile, a gooseneck microphone is added to the comprehensive control unit and is used for communication between the comprehensive control unit and other sub-platforms.
The technical scheme of the invention is as follows: providing an air refueling process networking simulation platform, wherein the networking simulation platform comprises a comprehensive control unit 1, a voice communication unit 2 and a network communication unit 3;
the comprehensive control unit 1 comprises an operation management unit 101, a situation display unit 102 and a data recording playback unit 103, wherein the situation display unit 102 and the data recording playback unit are in data connection with the operation management unit 101; the operation management unit 101 is connected with the external sub-platform through the network communication unit 3; the operation management unit 101 adopts a workstation configured with a reflective memory card to realize network state monitoring, multi-machine comprehensive deployment, real-time key parameter display and fault mode injection; the situation display unit 102 is used for realizing two-dimensional and three-dimensional situation display and view angle switching; a data recording and playback unit 103 for data recording and playback;
the voice call unit 2 includes an audio optical terminal box 201 and an audio processor 202; the audio processor 202 is used for connecting the communication systems of the external sub-platforms to realize multi-party communication; the audio optical terminal box 201 is configured to convert an audio signal received and sent by the audio processor 202 into an optical signal for transmission;
the network communication unit 3 comprises a real-time network switch 301 and a reflective memory card 302; the operation management unit 101 is in data connection with the real-time network switch 301 through the reflective memory card 302; the real-time network switch 301 is used for managing and transmitting all data to be exchanged in the simulation process;
the external sub-platform is a simulator or an iron bird which needs to be accessed to the air refueling process networking simulation platform.
Further, the operation management unit 101 includes a network configuration submodule, an environment setting submodule, a parameter setting submodule, and a fault setting submodule;
the network configuration submodule is used for monitoring whether real-time flight simulation data communication between the integrated control unit 1 and the original external sub-platform is normal or not in real time;
the environment setting submodule is used for setting time, meteorological conditions and wind attributes of the external sub-platform through the network communication unit 3;
the parameter setting submodule is used for relocating each external sub-platform flight simulation system through the network communication unit 3 and determining the initial longitude and latitude, the height, the speed and the corresponding balancing state of the airplane;
and the fault setting submodule is used for carrying out fault injection on each external sub-platform through the network communication unit 3.
Further, the data recording and playback unit 103 includes a data recording sub-module, a data display sub-module, and an offline data driving sub-module;
the data recording sub-module is used for recording real-time flight parameters read from a reflective memory card of an external sub-platform through the network communication unit 3;
the data display sub-module is used for displaying the flight parameters acquired from the external sub-platform by numerical values and curves;
the off-line data driving submodule reads the data file recorded by the data recording submodule and draws a curve; the recorded data is also sent to the situation display unit 102.
Further, the operation management unit 101 is connected to the situation display unit 102 and the data recording and playback unit 103 through an ethernet card.
Further, the audio processor 202 of the voice call unit 2 is connected to the external sub-platform voice signal through an optical fiber.
Further, the real-time network switch 301 of the network communication unit 3 performs data connection with an external sub-platform through an optical fiber.
Further, the situation display unit 102 is configured to perform two-dimensional or three-dimensional situation and switching of viewing angles in the simulation process, so as to facilitate observation of the relative position and the docking condition of the refueling/refueling machine.
Further, the real-time network switch 301 of the network communication unit 3 is in data connection with the external sub-platform through a network memory card independent of the external sub-platform, so as to realize network isolation between the external sub-platform and the networking simulation platform, realize independent use of each external sub-platform without being affected, and facilitate access to the networking simulation platform during the air refueling process.
The technical effects are as follows: the invention can simulate and test and verify the influence of the change of the environment and the aerodynamic characteristics of the airplane to the functions and the performances of the control law during the whole air refueling process, and comprehensively test and verify the flight control system. And the platform can be used for training pilots and oilers of the oil adding/receiving machines, and has higher value for development of the oil adding/receiving machines and training of personnel.
Drawings
FIG. 1 is a schematic diagram of an airborne fueling process networked simulation platform;
fig. 2 is a topological structure diagram of an air refueling process networking simulation platform.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples of the specification, and reference is made to fig. 1 and 2.
Fig. 1 is a schematic view of an air refueling process networking simulation platform, and as shown in fig. 1, the air refueling process networking simulation platform system mainly comprises: the system comprises an integrated control unit 1, a voice call unit 2 and a network communication unit 3.
The integrated control unit 1 is used as a control core of an air refueling process networking simulation platform and is used for completing functions of network state monitoring, multi-machine integrated deployment, simulation process control, real-time display of key parameters, fault mode injection, two-dimensional and three-dimensional situation display and visual angle switching, data recording and playback and the like. Specifically, the integrated control unit 1 mainly includes an operation management unit 101, a situation display unit 102, and a data recording playback unit 103. The operation management unit 101 is connected with a simulator or a ferry which needs to be accessed to an aerial refueling process networking simulation platform through a network communication unit 3 by adopting a workstation configured with a reflective memory card; these simulators or birds are collectively referred to as external sub-platforms. Meanwhile, the operation management unit 101 is connected to the situation display unit 102 and the data recording and playback unit 103 through an ethernet card, so as to implement parameter setting, state monitoring, parameter recording and real-time situation display.
Wherein the network communication unit 3: the flight simulation systems of the external sub-platforms are connected through a real-time network switch 301, and the operation management unit 101 is incorporated into the real-time network, and the network topology is shown in fig. 2. The operation management unit 101 is in data connection with the real-time network switch 301 through the reflective memory card 302; the real-time network switch 301 is used for management and transmission of all data to be exchanged in the simulation process. In this embodiment, the network communication unit adopts a structure of "reflective memory + star network", and realizes network isolation by adding a real-time network switch and a newly added reflective memory card, so as to open up a new address, which is different from the original network address of each sub-platform. The independent use of each sub-platform is not affected, and the access to the air refueling process networking simulation platform can be facilitated.
Voice call unit 2: the original external sub-platform is connected with the newly added audio processor 202 to form a network, the audio processor is arranged at the integrated control unit 1, and the audio signal is converted into an optical signal for transmission through the audio optical transceiver 201 in consideration of the long distance transmission distance of the audio signal. The gooseneck microphone of the integrated control unit 1 is connected to the audio processor and used for voice communication between the integrated control unit 1 and the external sub-platform. In this embodiment, the voice call unit adopts an architecture of "optical fiber + star network", realizes access and disconnection control of the sub-platform through the audio processor, and realizes conversion between an audio signal and an optical signal through the audio optical end box, thereby realizing remote transmission.
The network configuration submodule in the operation management unit 101 has a main function of monitoring whether real-time flight simulation data communication between the integrated control unit 1 and the original external sub-platform is normal or not in real time. By default, all the communication systems of the sub-platforms are connected, and the on-off of the data communication of the sub-platforms can be controlled in the software of the operation management unit 101.
The environment setting submodule in the operation management unit 101 is further divided into a time setting module, a weather condition setting module and a wind attribute setting module, time variation setting parameters comprise dawn, day, dusk and night, weather condition setting parameters comprise sunny days, rainy days, snowy days and foggy days, and wind attribute setting can set wind speed and wind direction. When the user modifies the environment setting, the setting data is immediately sent to each external sub-platform and situation display unit 102; after the wind attribute is set, the wind attribute can be issued to each external sub-platform after the change button is clicked.
The parameter setting submodule in the operation management unit 101 mainly relocates each external sub-platform flight simulation system, and determines the initial longitude and latitude, the altitude, the speed and the corresponding balancing state of the airplane. The operation management unit 101 selects several groups of suitable initial positions according to the definition and operation procedures of the processes of refueling convergence, docking and the like; after the airplane is trimmed, other initialization data such as horizontal stabilizer deflection and throttle lever position are obtained and prestored as a standard initialization data file. When the data packet distribution system is used, only the corresponding initial state needs to be selected, part of parameters can be modified, and then the state issuing button is clicked to distribute the data packet to each external sub-platform.
The fault setting submodule in the operation management unit 101 is mainly responsible for fault injection of each external sub-platform, the fault types are engine faults, control surface faults and hydraulic faults, the fault setting submodule supports independent fault injection of each external sub-platform, a fault injection button below a setting frame of each external sub-platform is clicked, fault data are written into corresponding addresses of a reflective memory network, and fault simulation is completed by reading of each external sub-platform.
The situation display unit 102 supports multi-view display, which includes a view angle of a pilot of the tanker aircraft, a view angle of a tail of the tanker aircraft to a received oil engine, an upper view angle, a view angle of the pilot of the received oil engine, and a left view angle, and a switching instruction instantly occurs to system software of the situation display unit 102 after the view angle is selected to be switched.
The data recording sub-module in the data recording playback unit 103 is mainly responsible for recording real-time flight parameters read from the reflective memory card of the external sub-platform, the data format supports dat and txt formats, numerical value display and curve display of key flight parameters can be observed in real time on a data recording interface, and recording start and end timings are selected. Before recording, the data can be configured, and the data of one or more sub-platforms can be selected to be recorded.
The data display submodule in the data recording playback unit 103 includes two parts, namely real-time data display and existing data file display, and the real-time data display part can assist in selecting data recording time; the existing data file display section can review the already stored data file and zoom in and out on the section of interest.
The offline data driving submodule of the data recording playback unit 103 reads the flight data recorded by the data recording submodule and sends the flight data to the situation display unit 102 in real time through a UDP communication protocol, and when the offline data driving module is started, the operation management unit 101 does not read the reflective memory network data any more; and the offline data driving submodule supports the dat.
In the embodiment, the data recording and playback unit can be configured to select the sub-platform data participating in the test, cut the recorded data according to the test subjects, and perform online observation on the flight data in a numerical value and curve form.
Claims (8)
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| CN111081113A (en) * | 2020-01-19 | 2020-04-28 | 南京航空航天大学 | An experimental platform for simulating the refueling and docking of two aircraft in the air |
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2020
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Patent Citations (8)
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| US20130183640A1 (en) * | 2012-01-18 | 2013-07-18 | Environmental Tectonics Corporation | Centrifuge-Based-Flight Simulator |
| CN105976672A (en) * | 2016-07-18 | 2016-09-28 | 成都艾尔伯特科技有限责任公司 | Multifunctional flight teaching platform |
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