CN113359508A - Helicopter/unmanned aerial vehicle weapon cooperative data chain communication system simulation modeling method, medium and system - Google Patents

The invention provides a helicopter/unmanned aerial vehicle weapon cooperative data chain communication system simulation modeling method, medium and system, wherein the method comprises the following steps: the link establishment networking mechanism simulation module receives communication data from the helicopter simulator and real-time parameters of the helicopter; receiving communication data sent to an unmanned aerial vehicle simulation system by an unmanned aerial vehicle task monitoring system and real-time parameters of the unmanned aerial vehicle; judging whether a data link of the helicopter and the unmanned aerial vehicle meets a link establishment networking condition or not based on the communication data and the real-time parameters of the helicopter and the communication data and the real-time parameters of the unmanned aerial vehicle; and after the set conditions are met, the module feeds back the successful state of link establishment networking to the helicopter simulator and the unmanned aerial vehicle simulation system. The invention can achieve the aim of equipment operation training of the trainee under the dynamic change of the communication quality, thereby improving the actual training effect and strengthening the ability of the trainee to process special conditions in the actual application scene.

Helicopter/unmanned aerial vehicle weapon cooperative data chain communication system simulation modeling method, medium and system

Technical Field

The invention relates to the field of unmanned aerial vehicles and helicopter communication simulation, in particular to a simulation modeling method, medium and system for a helicopter/unmanned aerial vehicle weapon cooperative data chain communication system.

Background

The existing data link communication system simulation modeling is mainly used for simulating and testing the performance of equipment or verifying the effectiveness of a communication topological structure in the stages of equipment research and development and equipment experiment. The method can be divided into single-platform simulation and cross-platform simulation.

For single-platform simulation, simulation modeling software such as simulink, opnet, systemvue and the like is generally used to construct virtual equipment instances and topological structures on a single computer or a computer cluster, and simulate a running simulation environment.

For cross-platform simulation, a mutually communicated network is constructed by utilizing a switch or wireless communication equipment, a data link is simulated, a plurality of computers are used for respectively simulating a plurality of independently operated equipment, and finally, simulation application based on a TCP/IP protocol is developed on each computer platform, so that information exchange of the plurality of equipment in parallel operation is simulated.

The existing data link communication system simulation modeling is mainly applied to equipment research and development and equipment experiment stages, is used for testing equipment performance or testing a network topological structure, but is rarely applied to simulator training occasions.

In the simulator training link, common training contents mostly emphasize the practice of the functions of certain equipment, so the data chain communication simulation only solves the communication among the equipment generally, and does not consider the design of aspects such as communication radio parameter setting, communication occlusion, communication distance limitation, link interference, link delay and the like. However, for some communication-based training subjects (such as helicopter/unmanned aerial vehicle weapon cooperation subjects), only the equipment is made to have connectivity, and the operation simulation under the scene of communication failure or poor communication quality is not considered, so that an effective training effect is often not achieved.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a simulation modeling method, medium, and system for a coordinated data chain communication system of a helicopter/drone weapon, so as to obviate or mitigate one or more of the disadvantages of the prior art.

The technical scheme of the invention is as follows:

according to an aspect of the invention, a simulation modeling method of a helicopter/unmanned aerial vehicle weapon cooperative data chain communication system is provided, and the simulation modeling method comprises the following steps:

the link establishment networking mechanism simulation module receives communication data from the helicopter simulator and real-time parameters of the helicopter;

the link establishment networking mechanism simulation module receives communication data sent to the unmanned aerial vehicle simulation system by the unmanned aerial vehicle task monitoring system and real-time parameters of the unmanned aerial vehicle;

the link establishment networking mechanism simulation module judges whether a data link of the helicopter and the unmanned aerial vehicle meets link establishment networking conditions or not based on communication data and real-time parameters of the helicopter and communication data and real-time parameters of the unmanned aerial vehicle;

after meeting the set conditions, the link establishment networking mechanism simulation module feeds back the link establishment networking success state to the helicopter simulator and the unmanned aerial vehicle simulation system;

after the helicopter simulator and the unmanned aerial vehicle simulation system successfully build and network, the link building and networking mechanism simulation module sends link building data to the voice communication system, so that operators of the helicopter and the unmanned aerial vehicle can carry out voice communication.

In some embodiments, the real-time parameters of the helicopter include a helicopter position parameter, a helicopter communication station parameter, a helicopter current time; the real-time parameters of the unmanned aerial vehicle comprise unmanned aerial vehicle position parameters, unmanned aerial vehicle communication station parameters and unmanned aerial vehicle current time.

In some embodiments, the step of determining, by the link establishment networking mechanism simulation module, whether the data link between the helicopter and the unmanned aerial vehicle meets the link establishment networking condition includes:

the link building networking mechanism simulation module judges the survival states of the helicopter and the unmanned aerial vehicle;

under the condition that both the helicopter and the unmanned aerial vehicle live, the link establishment and networking mechanism simulation module judges whether shielding exists between the helicopter and the unmanned aerial vehicle or not based on the three-dimensional scene, the helicopter position parameter and the unmanned aerial vehicle position parameter;

under the condition that shielding does not exist between the helicopter and the unmanned aerial vehicle, the link establishment and networking mechanism simulation module judges whether the distance between the helicopter and the unmanned aerial vehicle exceeds a characteristic value or not based on the helicopter position parameter and the unmanned aerial vehicle position parameter;

under the condition that the distance between the helicopter and the unmanned aerial vehicle is smaller than the characteristic value, the link establishment and networking mechanism simulation module judges whether the communication parameters of the helicopter and the unmanned aerial vehicle are the same or not based on the communication radio station parameters of the helicopter and the communication radio station parameters of the unmanned aerial vehicle;

under the condition that the communication parameters of the helicopter and the unmanned aerial vehicle are the same, the link establishment and networking mechanism simulation module judges whether the time difference value between the helicopter and the unmanned aerial vehicle is less than or equal to a set value or not based on the current time of the helicopter and the current time of the unmanned aerial vehicle;

and if the time difference value between the helicopter and the unmanned aerial vehicle is smaller than a set value, establishing a link and networking successfully by the helicopter and the unmanned aerial vehicle data link.

In some embodiments, the helicopter and drone communication parameters include a communication mode, a band number, a fm table number, and a net number.

In some embodiments, the helicopter enters the subnet after the manipulator of the helicopter selects to enter the chain of weapons; after an operator of the unmanned aerial vehicle selects to enter a weapon chain, the unmanned aerial vehicle enters a subnet;

the link establishment networking mechanism simulation module is used for communicating data communication between the helicopter and the unmanned aerial vehicle according to data interaction requirements of the helicopter and the unmanned aerial vehicle, so that the unmanned aerial vehicle can send target data to the helicopter, and the helicopter can send real-time position, speed and target request instructions of the helicopter to the unmanned aerial vehicle.

In some embodiments, the manipulator of the drone simulation system is in delayed communication with the drone reconnaissance illumination device through a manipulation device, comprising the steps of:

a network communication module of the control equipment or the unmanned aerial vehicle investigation irradiation equipment timestamps the state data generated in real time;

storing the time stamped status data in a first data register, the first data register for storing received and transmitted data;

after a first given delay time is reached, the status data is sent out over the network.

In some embodiments, the method for delaying the call of the received data by the manipulator of the unmanned aerial vehicle simulation system and the unmanned aerial vehicle investigation irradiation device through the manipulation device comprises the following steps:

the network communication module of the control equipment or the unmanned aerial vehicle investigation irradiation equipment receives data and time stamps the data;

storing the time-stamped data in a second data register;

after a second given delay time is reached, the data is called out for use.

In some embodiments, the simulation computer, upon receiving the communication data, follows X²Random numbers are generated in a distributed mode, and the interference level at the current moment is determined according to the defined interval where the three interference levels are located; according to the interference level, determining the communication state of the current time:

if the interference level is no interference, the communication state is normal communication;

if the interference levels are slight interference, the communication state is to insert random interference into the communication data;

if the interference levels are serious interference, the communication state is to delete the current communication data;

wherein X is used for generating random number²The distributed parameter values are determined based on the number of terrain and equipment instances in the current three-dimensional scene.

According to another aspect of the present invention, a computer-readable storage medium is also provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the aforementioned method.

According to another aspect of the present invention, there is also provided a system for implementing the simulation modeling method for the cooperative data link communication system of helicopter/drone weapons, the system comprising:

an unmanned aerial vehicle simulation computer having an unmanned aerial vehicle task monitoring system;

the helicopter simulator comprises a comprehensive display simulation computer, an ICU (integrated circuit unit) and BPU (broadband programmable logic unit) simulation computer, a flight performance and bus computer and an avionics comprehensive simulation computer.

The communication simulation and network node computer comprises a link establishment and networking mechanism simulation module, a link establishment and networking mechanism simulation module and a network node management module, wherein the link establishment and networking mechanism simulation module is used for simulating the communication characteristics of a real data link and realizing the communication matching between a networking unmanned aerial vehicle simulation system and a helicopter simulator;

and the Ethernet network switch is connected with the unmanned aerial vehicle simulation computer, the helicopter simulator and the communication simulation and network node computer and is used for exchanging and forwarding data.

According to the helicopter/unmanned aerial vehicle weapon cooperative data chain communication system simulation modeling method, medium and system provided by the embodiment of the invention, the beneficial effects at least comprise that:

the invention can achieve the aim of equipment operation training of the trainee under the dynamic change of the communication quality, thereby improving the actual training effect and strengthening the ability of the trainee to process special conditions in the actual application scene.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For purposes of illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings:

fig. 1 is a block diagram of a simulation modeling method of a cooperative data chain communication system of a helicopter/unmanned aerial vehicle weapon in an embodiment of the present invention.

Fig. 2 is a logic diagram of helicopter and unmanned aerial vehicle data link building networking simulation in an embodiment of the present invention.

Fig. 3 is a logic diagram of simulation logic for establishing a link between a helicopter and an unmanned aerial vehicle data link into a subnet in an embodiment of the present invention.

Fig. 4 is a logic diagram of a simulation of a link delay characteristic in an embodiment of the invention.

Fig. 5 is a simulation network diagram of a coordinated data chain of a helicopter/drone weapon in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

It is also noted herein that the term "coupled," if not specifically stated, may refer herein to not only a direct connection, but also an indirect connection in which an intermediate is present.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.

The invention provides a helicopter/unmanned aerial vehicle weapon cooperative data link communication system simulation modeling method, which aims to achieve the aim of enabling a trainee to carry out equipment operation training under the condition of dynamic change of communication quality, thereby improving the actual training effect and enhancing the ability of the trainee to process special situations under the actual application scene.

In the embodiment of the invention, the helicopter/unmanned aerial vehicle establishes respective radio station communication models, establishes a full-network voice simulation model, a subnet voice simulation model and a subnet data communication simulation model, and ensures that the operating procedures and phenomena and effects of the helicopter simulator in the training process are completely consistent with those of the unmanned aerial vehicle link establishment networking process. The model also considers the contents of a channel number, a key table number, a frequency hopping table number, a network number, communication speed, a mode and the like of unmanned aerial vehicle data chain TDMA communication, simultaneously considers the influence of the physical distance of the two on the data chain in the helicopter/unmanned aerial vehicle collaborative training simulation process, and can correctly simulate the chain breaking process when the communication limit distance is exceeded.

In some embodiments, as shown in fig. 1, the simulation modeling method includes the steps of:

s10: the link establishment networking mechanism simulation module receives communication data from the helicopter simulator and real-time parameters of a simulated helicopter;

s20: the link establishment networking mechanism simulation module receives communication data sent to the unmanned aerial vehicle simulation system by the unmanned aerial vehicle task monitoring system and real-time parameters of the simulated unmanned aerial vehicle;

s30: the link building and networking mechanism simulation module judges whether the helicopter simulator and the unmanned aerial vehicle simulation system meet link building and networking conditions or not based on communication data and real-time parameters of the helicopter and communication data and real-time parameters of the unmanned aerial vehicle;

s40: after meeting the set conditions, the link establishment networking mechanism simulation module feeds back the link establishment networking success state to the helicopter simulator and the unmanned aerial vehicle simulation system;

s50: after the helicopter simulator and the unmanned aerial vehicle simulation system successfully build and network, the link building and networking mechanism simulation module sends link building data to the voice communication system, so that operators of the helicopter and the unmanned aerial vehicle can carry out voice communication.

In the embodiment of the invention, the physical and logical layer simulation of the helicopter simulator and the simulation unmanned aerial vehicle link establishment networking is realized by a link establishment networking mechanism simulation module positioned outside two systems. The link establishment networking mechanism simulation module is independent of a helicopter flight simulator and an unmanned aerial vehicle simulation system, and the working mechanism is that the upper emperor visual angle evaluation and decision is made whether the link establishment conditions are met or not and whether the link establishment is successful or not, so that the communication system simulation modeling method simulates the actual communication process more truly, and the training effect is improved.

In some embodiments, the real-time parameters of the helicopter may include helicopter position parameters, helicopter communication station parameters, helicopter current time, and the like; the real-time parameters of the unmanned aerial vehicle comprise unmanned aerial vehicle position parameters, unmanned aerial vehicle communication station parameters, unmanned aerial vehicle current time and the like. The communication system simulation modeling method provided by the embodiment of the invention considers various real-time parameters of the helicopter and the unmanned aerial vehicle, so that the trainee performs equipment operation training in the process of dynamic parameter change, and the training effect is improved.

In some embodiments, the step of determining, by the link establishment networking mechanism simulation module, whether the data link between the helicopter and the unmanned aerial vehicle meets the link establishment networking condition includes:

s31: the link building networking mechanism simulation module judges the survival states of the helicopter and the unmanned aerial vehicle;

s32: under the condition that both the helicopter and the unmanned aerial vehicle live, the link establishment and networking mechanism simulation module judges whether shielding exists between the helicopter and the unmanned aerial vehicle or not based on the three-dimensional scene, the helicopter position parameter and the unmanned aerial vehicle position parameter;

s33: under the condition that shielding does not exist between the helicopter and the unmanned aerial vehicle, the link establishment and networking mechanism simulation module judges whether the distance between the helicopter and the unmanned aerial vehicle exceeds a characteristic value or not based on the helicopter position parameter and the unmanned aerial vehicle position parameter;

s34: under the condition that the distance between the helicopter and the unmanned aerial vehicle is smaller than the characteristic value, the link establishment and networking mechanism simulation module judges whether the communication parameters of the helicopter and the unmanned aerial vehicle are the same or not based on the communication radio station parameters of the helicopter and the communication radio station parameters of the unmanned aerial vehicle;

s35: under the condition that the communication parameters of the helicopter and the unmanned aerial vehicle are the same, the link establishment and networking mechanism simulation module judges whether the time difference value between the helicopter and the unmanned aerial vehicle is smaller than a set value or not based on the current time of the helicopter and the current time of the unmanned aerial vehicle;

s36: and if the time difference value between the helicopter and the unmanned aerial vehicle is smaller than a set value, establishing a link and networking successfully by the helicopter and the unmanned aerial vehicle data link.

As shown in fig. 2, in step 31, the link establishment networking mechanism simulation module may determine the survival status of the helicopter and the unmanned aerial vehicle according to the avionics data of the helicopter and the unmanned aerial vehicle. In step 32, the link establishment and networking mechanism simulation module determines whether the existing shelter between the helicopter and the unmanned aerial vehicle is mainly a physical shelter, for example, the geographic environments such as the relief of the terrain, the luxuriant of the vegetation, the distribution of obstacles, and the like. In step 33, whether the distance between the helicopter and the unmanned aerial vehicle exceeds the characteristic value means whether the distance exceeds the communication limit distance, and if the distance is within the communication limit distance, communication can be correctly established. In step 34, the communication parameters of the helicopter and the drone include reported parameters such as a communication mode, a band number, a frequency modulation table number and a net number, for example, the communication mode may be a TDMA communication mode. In step 35, the link establishment networking mechanism simulation module performs timing judgment, and if the time difference between the helicopter and the unmanned aerial vehicle is not greater than 2 seconds, the set value is 2 seconds.

In some embodiments, as shown in fig. 3, after the helicopter and the unmanned aerial vehicle successfully establish the link and network, both sides enter a full-network communication state, at this time, the link establishment and networking mechanism simulation module sends link establishment data to the voice communication system, and the helicopter and the unmanned aerial vehicle manipulator can perform voice communication. After an operator of the helicopter selects to enter a weapon chain, the helicopter enters a subnet; after an operator of the unmanned aerial vehicle selects to enter a weapon chain, the unmanned aerial vehicle enters a subnet; the link establishment networking mechanism simulation module is used for communicating data communication between the helicopter and the unmanned aerial vehicle according to data interaction requirements of the helicopter and the unmanned aerial vehicle, so that the unmanned aerial vehicle can send target data to the helicopter, the helicopter can send real-time position, speed and target request instructions to the unmanned aerial vehicle, and weapon systems of the helicopter and the unmanned aerial vehicle can cooperate to attack or otherwise act on a target together.

In some embodiments, the drone manipulator is required to control the motion and field of view change of the drone reconnaissance irradiation device through the manipulation handle when controlling the drone reconnaissance irradiation device to search, reconnaissance, identify, and lock the target. Because communication distance and instruction and image data coding and decoding transmission process all can lead to certain time delay, unmanned aerial vehicle task image software can appear obvious delay in the in-service use. This delay also greatly affects the steering accuracy of the drone manipulator and the time required to lock the target. In order to improve the capability of the unmanned aerial vehicle for ground manipulation and target capture, the embodiment of the invention designs data link delay characteristic simulation.

Specifically, the manipulator of unmanned aerial vehicle simulation system passes through control device and unmanned aerial vehicle investigation equipment of shining and carries out delay communication, includes the following step:

s110: a network communication module of the control equipment or the unmanned aerial vehicle investigation irradiation equipment timestamps the state data generated in real time;

s120: storing the time stamped status data in a first data register, the first data register for storing received and transmitted data;

s130: after a first given delay time is reached, the status data is sent out over the network.

Further, the manipulator of the unmanned aerial vehicle simulation system delays and calls the received data through the control device and the unmanned aerial vehicle investigation irradiation device, and the method comprises the following steps:

s210: the network communication module of the control equipment or the unmanned aerial vehicle investigation irradiation equipment receives data and time stamps the data;

s220: storing the time-stamped data in a second data register;

s230: after a second given delay time is reached, the data is called out for use.

As shown in fig. 3, in order to simulate the data link delay characteristics, in the simulation process, data received in real time needs to be delayed for processing, and data generated in real time, such as attitude and control, needs to be delayed for a certain time and sent. In order to realize the process, a data register is needed to be arranged to store the data, and the data is called for use after a certain time delay. In design, the system is provided with a FIFO (first-in first-out) data register at the network communication module for storing various received and sent data, and the length of the register can be increased along with the increase of the communication distance. When data arrives, the data is pressed into a FIFO register for receiving the data and a time stamp is attached, and the simulation program reads the data which is subjected to delayed processing according to the time recorded by the time stamp for manipulation and instruction processing. Similarly, when the simulation system generates data in real time, the data will be pushed into the FIFO register where the data is sent and time stamped for delayed transmission. And the simulation program compares the time of the time stamp in real time and sends the data reaching the delay time to each relevant system through the network.

In the actual process of wireless communication between aircraft, especially in a battlefield environment, the equipments communicating with each other are usually interfered by many factors, such as atmospheric environment, complex electromagnetic environment, geographical effect, etc. When a communication system is subject to interference, it often exhibits phenomena such as spurs, packet loss, and even outages.

After receiving the communication data, the simulation computer generates random numbers according to X2 distribution, and determines the interference level at the current moment according to the defined interval where the three interference levels are located; according to the interference level, determining the communication state of the current time:

if the interference level is no interference, the communication state is normal communication;

if the interference levels are slight interference, the communication state is to insert random interference into the communication data;

if the interference levels are serious interference, the communication state is to delete the current communication data;

wherein the parameter value of the X2 distribution for generating the random number is determined according to the number of terrain and equipment instances in the current three-dimensional scene.

In order to simulate the actual situation that may be encountered during communication, the present design divides the interference level into three levels: no interference, slight interference and serious interference. After the simulation computer receives communication data, random numbers are generated according to x2 distribution, the interference level of the current moment is determined according to a defined interval where the three interference levels are located, and the probability of occurrence of no interference is highest, the probability of slight interference is second and the probability of serious interference is minimum in a conventional scene. And then according to the interference level, determining the communication state of the current moment: and (3) corresponding to normal communication without interference, inserting random disturbance into communication data if slight interference exists, and deleting current data if serious interference exists (simulating packet loss or interruption). In addition, the parameter value of the χ 2 distribution for generating the random number is determined according to the number of terrains and forces (equipment examples) in the current three-dimensional scene, and when the terrain is complex and the number of forces is large, the χ 2 distribution is close to the normal distribution, so that the generated random number is easier to fall in a slight interference interval. The basic logic for the link interference signature design is shown in table 1.

Table 1 basic logic for link interference signature design

According to the simulation modeling method of the helicopter/unmanned aerial vehicle weapon cooperative data chain communication system, information interconnection can be carried out among all cooperative equipment; under the condition of communication, simulation of characteristics such as radio station parameter setting, communication shielding, communication distance limitation, link interference and the like can be realized by utilizing communication logic design; the communication quality characteristic design simulates communication delay and communication interference inherent in practical application of a data link. The method enables the system to be closer to the characteristics of equipment in the actual operation process in the aspect of operation experience, and therefore the urgent need of enabling trainees to carry out helicopter/unmanned aerial vehicle weapon collaborative simulation training under the condition of dynamic change of communication quality is solved.

According to another aspect of the present invention, a computer-readable storage medium is also provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the aforementioned method.

According to another aspect of the present invention, there is also provided a system for implementing a simulation modeling method for a cooperative data link communication system of a helicopter/unmanned aerial vehicle weapon, the system comprising an unmanned aerial vehicle simulation computer, a helicopter simulator, a communication simulation and network node computer and an ethernet network switch, the ethernet network switch being connected to the unmanned aerial vehicle simulation computer, the helicopter simulator and the communication simulation and network node computer for exchanging and forwarding data.

As shown in fig. 5, in which the drone simulation computer has a drone mission monitoring system. The helicopter simulator comprises a comprehensive display simulation computer, an ICU (integrated circuit unit) and BPU (broadband programmable logic unit) simulation computer, a flight performance and bus computer, an avionics comprehensive simulation computer and the like. The communication simulation and network node computer comprises the link establishment and networking mechanism simulation module and is used for simulating the communication characteristics of the real-mounted data link and realizing the communication matching between the networking unmanned aerial vehicle simulation system and the helicopter simulator, and the communication characteristics of the real-mounted data link comprise communication frequency, communication distance, physical shielding, communication interference and the like.

The ICU of the ICU and the BPU simulation computer refers to an intelligent control unit, the BPU refers to a brain processor, and the key is the daily task for supporting point neural network algorithms, such as images, video voice, texts, manipulation and the like.

The system realizes physical layer networking of the helicopter and the unmanned aerial vehicle through the Ethernet local area network, realizes link management and data interaction through computer software and a network communication protocol, and realizes voice communication between the helicopter and the unmanned aerial vehicle through a voice communication system, thereby realizing analog simulation of the functions of the helicopter/unmanned aerial vehicle weapon cooperative data link system.

Fig. 5 shows a simulation network diagram of a coordinated data chain of a helicopter/unmanned aerial vehicle weapon, wherein a network structure adopts a gigabit ethernet, a topology structure adopts a star-shaped structure, and the simulation network diagram consists of a gigabit ethernet switch and simulation computers, and the simulation computers are provided with gigabit ethernet cards. The data of the whole network is switched and forwarded through the gigabit Ethernet switch.

The network data mainly comprises simulation data and voice communication data, and is respectively responsible for the transmission of information data inside the simulator and the transmission of voice signals. The transmission of data uses the UDP protocol of the TCP/IP protocol family.

A communication simulation and network node computer is arranged in the network and used for simulating the communication characteristics of the real-mounted data link, mainly comprising the influence of communication frequency, communication distance, physical barrier, communication interference and the like on communication, and the communication matching of the networking unmanned aerial vehicle simulation system and the helicopter can be realized.

The voice communication system adopts a plurality of computers as terminals, utilizes computer networks to transmit data, and can use G.729/G.711 algorithm or other algorithms to compress and decompress voice audio to realize the voice communication function. Therefore, the voice communication inside the crew and between the crew and the ground commander is achieved.

According to the helicopter/unmanned aerial vehicle weapon cooperative data chain communication system simulation modeling method, medium and system provided by the embodiment of the invention, the beneficial effects at least comprise that:

1) the invention can achieve the aim of equipment operation training of the trainee under the dynamic change of the communication quality, thereby improving the actual training effect and strengthening the ability of the trainee to process special conditions in the actual application scene.

2) The invention realizes physical layer networking of the helicopter and the unmanned aerial vehicle through the Ethernet local area network, realizes link management and data interaction through computer software and a network communication protocol, and realizes voice communication between the helicopter and the unmanned aerial vehicle through a voice communication system, thereby realizing analog simulation of the functions of the helicopter/unmanned aerial vehicle weapon cooperative data link system.

3) The invention designs data link delay characteristic simulation, truly simulates the delay of the unmanned aerial vehicle/helicopter in the actual communication process, improves the capability of the unmanned aerial vehicle for controlling and capturing the target on the ground, and improves the actual training effect.

Those of ordinary skill in the art will appreciate that the various illustrative components, systems, and methods described in connection with the embodiments disclosed herein may be implemented as hardware, software, or combinations of both. Whether this is done in hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.

The software may be disposed in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.