CN112115589B - VR-Force and OPNET based joint simulation system and method - Google Patents
VR-Force and OPNET based joint simulation system and method Download PDFInfo
- Publication number
- CN112115589B CN112115589B CN202010874430.1A CN202010874430A CN112115589B CN 112115589 B CN112115589 B CN 112115589B CN 202010874430 A CN202010874430 A CN 202010874430A CN 112115589 B CN112115589 B CN 112115589B
- Authority
- CN
- China
- Prior art keywords
- simulation
- opnet
- data
- simulation system
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
Abstract
The invention discloses a VR-Force and OPNET based joint simulation system and method. The system comprises two computers and a message processing server which are connected through Ethernet, wherein a VR-Force scene simulation system and an OPNET networking protocol simulation system are respectively arranged on the two computers. The method comprises the following steps: after the system is configured, starting a VR-Force scene simulation system to carry out tactical deduction; real-time data carrying tactical tasks generated in the deduction process form formatted messages through a message processing server and then are sent to an OPNET semi-physical simulation interface, and then the real-time data are introduced into an OPNET networking protocol simulation network through a data distribution and collection module; and the data returns to the VR-Force tactical scene simulation system after completing the simulation transmission in the wireless environment through the simulation network, and completes the corresponding tactical action according to the received data. The invention simulates the completion process of tactical mission and the communication network condition of the battlefield more truly.
Description
Technical Field
The invention belongs to the technical field of communication simulation, and particularly relates to a VR-Force and OPNET based joint simulation system and method.
Background
The tactical communication network is the foundation and guarantee of future informatization combat, researchers need to continuously do some prospective researches to develop protocols and schemes which are more beneficial to battlefield communication. In the face of complex and variable battlefield environments, network research only by means of theoretical analysis or experimental methods has great limitation. As a new network aided planning and design technology, the network simulation technology has been widely applied to the aspects of battlefield network system development, performance testing, index making and the like. The method simulates the researched network system by establishing a model, helps researchers to obtain effective data of network research with low cost, realizes performance evaluation and improvement idea of a design scheme in a system design stage, shortens a research and development period, reduces development cost, and improves efficiency and reliability of system design.
The OPNET is network modeling software, provides a near-real network environment by adopting a communication mechanism based on a data packet, a simulation mechanism based on discrete events and a three-layer modeling mechanism consistent with a real network, accurately analyzes the performance and the behavior of the complex network, allows a user to use a finite-state machine to develop a protocol, and provides an effective path for the user to perform network planning, protocol design and the like. At present, the method is widely applied to simulation and modeling of communication networks, facilities and protocols, and is further applied to the aspect of tactical network simulation.
The VR-Force is a complete set of simulation development toolkit, can create and edit a three-dimensional simulation environment of a real scene, and a powerful simulation engine of the VR-Force can be used for simulating a battlefield environment and executing battlefield scenario. At present, effective simulation support is provided in the aspects of tactical training simulators, tactical action deduction, behavior model test, computer force generation systems and the like.
Modern war has gradually developed into system confrontation under combined operation, and various military troops and various operation platforms are required to efficiently share battlefield resources, so that rapid and accurate combined operation action is realized. This requires seamless interaction of information between the combat units, including battlefield situational awareness, geographic environment, command control, etc. Thus, communication becomes an important part of tactical systems research. At present, the tactical application of VF-Force and other simulation software which mainly has the functions of military Force generation, battlefield environment simulation and the like generally only considers single battlefield simulation and does not take the influence of a communication networking protocol into consideration.
Tactical communication protocol networking is to generate a most suitable network plan and configuration from a given tactical mission, and based on channel capacity, tactical data exchange meets the specified requirements, and the ordered work and efficient task completion of each unit on a battlefield are realized. Therefore, networking protocol design is strongly related to tactical tasks. At present, researchers carry out protocol design simulation by using simulation software represented by OPNET, and tactical message distribution in a tactical mission deduction process cannot be completely simulated, so that the influence of upper-layer tactical missions on a bottom-layer networking protocol cannot be truly reflected, and the efficiency of simulation for guiding and optimizing system development is reduced.
With the development of war informatization in the future, a single simulation system cannot complete large-scale and complicated real condition simulation.
Disclosure of Invention
The invention aims to provide a VR-Force and OPNET based joint simulation system and method, which can complete large-scale and complicated real-situation simulation.
The technical solution for realizing the purpose of the invention is as follows: a joint simulation system based on VR-Force and OPNET comprises two computers and a message processing server which are connected through Ethernet, wherein a VR-Force scene simulation system is arranged on a first computer, and an OPNET networking protocol simulation system is arranged on a second computer;
configuring the same simulation scene as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the same simulation scene comprises the position, the number and the function of a node model, the terrain, the environment and the longitude and latitude;
data sent by nodes in the VR-Force scene simulation system form formatted messages through a message processing server, and the messages are sent to mapping nodes in an OPNET simulation system, namely OPNET simulation nodes; after the OPNET simulation node obtains a real-time data source, the OPNET simulation node broadcasts a message to other simulation nodes through wireless transmission under a mixed TDMA networking scheme, the other simulation nodes send the message to corresponding nodes of the VR-Force scene simulation system through a message processing server, and after receiving the message, each node performs corresponding action according to the message content.
Further, the specific process of sending data by the nodes in the VR-Force scene simulation system is as follows:
after the VR-Force tactical scene is started, according to the requirement of the tactical task, the corresponding nodes execute respective tasks and send out information carrying the tactical task, and the information is transmitted to the message processing server through the network port of the first computer.
Further, the specific process of the message processing performed by the message processing server is as follows:
the message processing server processes the message according to a set message format packaging rule, and converts the information carrying the tactical mission into a series of formatted messages, wherein the formatted messages are messages which are required to be transmitted in the tactical mission implementation process, are in a predetermined format and are limited in types and are used for implementing combat control; and after the message processing server finishes message processing, the message processing server sends the formatted message to a network card of the second computer.
Furthermore, the OPNET networking protocol simulation system is a semi-physical simulation system and comprises a semi-physical simulation interface module, a data distribution and collection module and a networking protocol simulation network;
a semi-physical simulation interface module bound with a network card captures a data packet and forwards the data packet to a data distribution and collection module, the data distribution and collection module distributes the data packet to corresponding nodes in a networking protocol simulation network, and data sent by the nodes in the VR-Force scene simulation system reach mapping nodes in an OPNET simulation system, namely the OPNET simulation node obtains a real-time data source;
the simulation node which obtains the data source broadcasts the data packet to other simulation nodes through wireless transmission under a hybrid TDMA networking scheme; other nodes receiving the data packet send the data packet to a network card of a second computer through a data distribution and collection module and a semi-physical simulation interface so as to reach a message processing server, the message processing server performs logic processing on the data packet to generate a formatted message representing a corresponding action and sends the formatted message to a corresponding node of the VR-Force scene simulation system, and each node performs a corresponding action according to the content of the message after receiving the formatted message; and completing data transfer of the joint simulation system.
A joint simulation method based on VR-Force and OPNET comprises the following specific steps:
step 1: configuring a simulation scene of a VR-Force scene simulation system;
step 2: configuring a simulation scene of an OPNET networking protocol simulation system;
and step 3: constructing a semi-physical simulation interface of an OPNET networking protocol simulation system;
and 4, step 4: configuring an intermediate node with the functions of distributing and collecting data packets, namely a data distributing and collecting module;
and 5: constructing a node model and an MAC protocol architecture of a networking protocol simulation network;
step 6: through the steps 1 to 5, the joint simulation system completes the relevant configuration and starts the VR-Force scene simulation system to carry out tactical deduction; real-time data carrying tactical tasks generated in the deduction process form formatted messages through a message processing server and then are sent to an OPNET semi-physical simulation interface, and then the real-time data are introduced into an OPNET networking protocol simulation network through a data distribution and collection module; the data is transmitted in a wireless environment through a simulation network and then returned to the VR-Force tactical scene simulation system, and corresponding tactical actions are completed according to the received data; and finishing one round of VR-Force and OPNET combined data transmission.
Further, the configuration of the simulation scene of the VR-Force scene simulation system in step 1 is as follows:
the simulation scene is a leading edge network positioned at the tail end of a battlefield and consists of a red part and a blue part; the red square comprises ten unmanned aerial vehicles and ten unmanned vehicles; the blue square comprises six unmanned vehicles which are divided into two groups for patrol monitoring, and the area is rectangular; the target of the red party is that an unmanned aerial vehicle carries out enemy area investigation and guides the unmanned aerial vehicle to carry out route evasion;
through wireless communication transmission information between red side unmanned aerial vehicle and the unmanned car, specific process is: the blue unmanned aerial vehicles are divided into two groups to be patrolled and detected in two rectangular areas, the red unmanned aerial vehicles are formed into a team to be detected in a forward mode according to a designated route, and after the blue unmanned vehicles are found, original driving routes are changed by sending monitoring messages to other unmanned aerial vehicles and unmanned vehicles in the team, and enemy areas are prevented from reaching destinations.
Further, the configuration step 2 is to configure a simulation scenario of the OPNET networking protocol simulation system, specifically as follows:
configuring simulation scenes which are the same as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the simulation scenes comprise the positions, the number and the functions of node models, the terrain, the environment and the longitude and latitude, and the wireless communication environment among the nodes in the OPNET networking protocol simulation system is ensured to be the same as that in the VR-Force scene simulation system; different MAC addresses and IP addresses are set for each node in all emulated node attributes.
Further, the step 3 of constructing a semi-physical simulation interface of the OPNET networking protocol simulation system specifically includes:
the OPNET provides a semi-physical simulation interface in a ring module, namely SITL, through the system, the module provides a node model and a link model for creating SITL gateway nodes and links, and maps a plurality of physical network interfaces to different network addresses in the OPNET simulation network, so that equipment outside an OPNET networking protocol simulation system can interact with the OPNET simulation network to form a joint simulation whole, and the steps are as follows:
1) connecting the message processing server to a second computer running an OPNET networking protocol simulation system through an Ethernet;
2) setting an SITL gateway node in an OPNET networking protocol simulation System, configuring node attributes, wherein a node model of the SITL gateway node adopts a native _ virtual _ gateway _ to _ real _ world of the System, and a process model of an External System Module in the native _ virtual _ gateway _ to _ real _ world adopts native _ virtual _ gateway _ esys; the SITL gateway node combines with WinPcap to acquire an Ethernet port data packet, wherein WinPcap is a system for capturing and analyzing the packet under a Windows operating system; translating and converting the Ethernet packet by a process model of an External System Module;
3) and an SITL link is arranged in an OPNET networking protocol simulation system to connect an SITL gateway node and a data distribution and collection module.
Further, the step 4 configures an intermediate node having functions of distributing and collecting packets, that is, a data distribution and collection module, specifically:
the OPNET networking protocol simulation network is used for verifying the performance of a networking protocol and the influence of a wireless environment on tactical information transmission, and the data introduced through a semi-physical interface is the sum of all simulation node information sources, so that the acquired data needs to be distributed in real time according to the nodes to which the data belongs; the node which obtains the data wirelessly transmits the data to other nodes according to a hybrid TDMA networking protocol, and all the nodes which receive the data need to send the data back to the semi-physical simulation interface; therefore, an intermediate node with the functions of data packet distribution and collection is configured between the SITL gateway node and other nodes of the OPNET networking protocol simulation network, and the distribution and collection of the data packets are completed by writing a process model code.
Further, the step 5 of constructing the node model and the MAC protocol architecture of the networking protocol simulation network includes the following specific steps:
the time slot allocation of the nodes in the OPNET networking protocol simulation network adopts a mixed TDMA protocol scheme, the basic time unit of the network is a time frame, and the time frame consists of a fixed time slot block and a dynamic competition time slot block; all simulation nodes obtain fixed time slots in each time frame, and the nodes send data when the time slots to which the nodes belong arrive; all nodes can send burst-type service data through contention time slots, except that the fixedly allocated time slots can send data.
Compared with the prior art, the invention has the following remarkable advantages: (1) the method has the advantages that the existing resources are fully integrated and utilized, the most real battle condition simulation is realized, the cost is low, the period is short, the risk is small, the method is flexible and controllable, the method can be widely applied to the test of software and hardware, the system development and performance optimization, the relevance research among all elements of the network and the like, and effective verification and analysis means are provided for the continuously developed tactical network research; (2) the battlefield simulation system and the communication networking simulation system for tactical mission deduction are combined to carry out simulation, real-time transmission of tactical messages in a virtual simulation network is achieved, the completion process of tactical missions and the conditions of the battlefield communication network are simulated more truly, the fighting effectiveness of networking schemes in different tactical environments is further verified, tactical networking requirements are evaluated, and the correctness and the effectiveness of the networking schemes are guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a VR-Force and OPNET based joint simulation system of the present invention.
Fig. 2 is a schematic diagram of the setting of the attributes of the SITL gateway node in the present invention.
Fig. 3 is a schematic diagram of the OPNET semi-physical simulation system of the present invention.
FIG. 4 is a flow chart of the VR-Force and OPNET based joint simulation method of the present invention.
Detailed Description
The network system considered by the invention is a front edge network tactical scene at the tail end of a battlefield and aims to complete a specific tactical task through team operation. Each operation unit of the team is distributed with different network roles according to a specific tactical task, and the operation units respectively complete the specific task and share information to cooperatively complete the operation task. In order to simulate the tactical scene, VR-Force is used for scene simulation to complete the deduction process of the whole task. In order to meet the communication requirement in the task execution process, the OPNET is used for networking design simulation. Neither tactical scene simulation nor networking design simulation exist as stand-alone systems. Because whether the networking scheme meets the combat requirements and cannot leave a specific tactical task, the networking scheme needs real-time transmission of tactical messages for verification so as to improve the accuracy and confidence of networking protocol design; and the tactical scene simulation also needs the real-time transmission of the information under the nearly real network environment to complete the cooperation of each unit, so that the tactical deduction is more fit for the actual operation. Therefore, the invention combines VR-Force tactical scene simulation and networking design simulation, introduces real-time tactical messages generated in a tactical deduction system into an MAC networking protocol simulation system loop based on a semi-physical simulation interface of OPNET, and returns the real messages to the tactical deduction system after the real messages are transmitted through a virtual network to complete a cooperative task.
A joint simulation system based on VR-Force and OPNET comprises two computers and a message processing server which are connected through Ethernet, wherein a VR-Force scene simulation system is arranged on a first computer, and an OPNET networking protocol simulation system is arranged on a second computer;
configuring the same simulation scene as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the same simulation scene comprises the position, the number and the function of a node model, the terrain, the environment and the longitude and latitude;
data sent by nodes in the VR-Force scene simulation system form formatted messages through a message processing server, and the messages are sent to mapping nodes in an OPNET simulation system, namely OPNET simulation nodes; after the OPNET simulation node obtains a real-time data source, the OPNET simulation node broadcasts a message to other simulation nodes through wireless transmission under a mixed TDMA networking scheme, the other simulation nodes send the message to corresponding nodes of the VR-Force scene simulation system through a message processing server, and after receiving the message, each node performs corresponding action according to the message content.
Further, the specific process of sending data by the nodes in the VR-Force scene simulation system is as follows:
after the VR-Force tactical scene is started, according to the requirement of the tactical task, the corresponding nodes execute respective tasks and send out information carrying the tactical task, and the information is transmitted to the message processing server through the network port of the first computer.
Further, the specific process of the message processing performed by the message processing server is as follows:
the message processing server processes the message according to a set message format packaging rule, and converts the information carrying the tactical mission into a series of formatted messages, wherein the formatted messages are messages which are required to be transmitted in the tactical mission implementation process, are in a predetermined format and are limited in types and are used for implementing combat control; and after the message processing server finishes message processing, the message processing server sends the formatted message to a network card of the second computer.
Furthermore, the OPNET networking protocol simulation system is a semi-physical simulation system and comprises a semi-physical simulation interface module, a data distribution and collection module and a networking protocol simulation network;
a semi-physical simulation interface module bound with a network card captures a data packet and forwards the data packet to a data distribution and collection module, the data distribution and collection module distributes the data packet to corresponding nodes in a networking protocol simulation network, and data sent by the nodes in the VR-Force scene simulation system reach mapping nodes in an OPNET simulation system, namely the OPNET simulation node obtains a real-time data source;
the simulation node which obtains the data source broadcasts the data packet to other simulation nodes through wireless transmission under a hybrid TDMA networking scheme; other nodes receiving the data packet send the data packet to a network card of a second computer through a data distribution and collection module and a semi-physical simulation interface so as to reach a message processing server, the message processing server performs logic processing on the data packet to generate a formatted message representing a corresponding action and sends the formatted message to a corresponding node of the VR-Force scene simulation system, and each node performs a corresponding action according to the content of the message after receiving the formatted message; and completing data transfer of the joint simulation system.
A joint simulation method based on VR-Force and OPNET comprises the following specific steps:
step 1: configuring a simulation scene of a VR-Force scene simulation system;
step 2: configuring a simulation scene of an OPNET networking protocol simulation system;
and step 3: constructing a semi-physical simulation interface of an OPNET networking protocol simulation system;
and 4, step 4: configuring an intermediate node with the functions of distributing and collecting data packets, namely a data distributing and collecting module;
and 5: constructing a node model and an MAC protocol architecture of a networking protocol simulation network;
step 6: through the steps 1 to 5, the joint simulation system completes the relevant configuration and starts the VR-Force scene simulation system to carry out tactical deduction; real-time data carrying tactical tasks generated in the deduction process form formatted messages through a message processing server and then are sent to an OPNET semi-physical simulation interface, and then the real-time data are introduced into an OPNET networking protocol simulation network through a data distribution and collection module; the data is transmitted in a wireless environment through a simulation network and then returned to the VR-Force tactical scene simulation system, and corresponding tactical actions are completed according to the received data; and finishing one round of VR-Force and OPNET combined data transmission.
Further, the configuration of the simulation scene of the VR-Force scene simulation system in step 1 is as follows:
the simulation scene is a leading edge network positioned at the tail end of a battlefield and consists of a red part and a blue part; the red square comprises ten unmanned aerial vehicles and ten unmanned vehicles; the blue square comprises six unmanned vehicles which are divided into two groups for patrol monitoring, and the area is rectangular; the target of the red party is that an unmanned aerial vehicle carries out enemy area investigation and guides the unmanned aerial vehicle to carry out route evasion;
through wireless communication transmission information between red side unmanned aerial vehicle and the unmanned car, specific process is: the blue unmanned aerial vehicles are divided into two groups to be patrolled and detected in two rectangular areas, the red unmanned aerial vehicles are formed into a team to be detected in a forward mode according to a designated route, and after the blue unmanned vehicles are found, original driving routes are changed by sending monitoring messages to other unmanned aerial vehicles and unmanned vehicles in the team, and enemy areas are prevented from reaching destinations.
Further, the configuration step 2 is to configure a simulation scenario of the OPNET networking protocol simulation system, specifically as follows:
configuring simulation scenes which are the same as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the simulation scenes comprise the positions, the number and the functions of node models, the terrain, the environment and the longitude and latitude, and the wireless communication environment among the nodes in the OPNET networking protocol simulation system is ensured to be the same as that in the VR-Force scene simulation system; different MAC addresses and IP addresses are set for each node in all emulated node attributes.
Further, the step 3 of constructing a semi-physical simulation interface of the OPNET networking protocol simulation system specifically includes:
the OPNET provides a semi-physical simulation interface in a ring module, namely SITL, through the system, the module provides a node model and a link model for creating SITL gateway nodes and links, and maps a plurality of physical network interfaces to different network addresses in the OPNET simulation network, so that equipment outside an OPNET networking protocol simulation system can interact with the OPNET simulation network to form a joint simulation whole, and the steps are as follows:
1) connecting the message processing server to a second computer running an OPNET networking protocol simulation system through an Ethernet;
2) setting an SITL gateway node in an OPNET networking protocol simulation System, configuring node attributes, wherein a node model of the SITL gateway node adopts a native _ virtual _ gateway _ to _ real _ world of the System, and a process model of an External System Module in the native _ virtual _ gateway _ to _ real _ world adopts native _ virtual _ gateway _ esys; the SITL gateway node combines with WinPcap to acquire an Ethernet port data packet, wherein WinPcap is a system for capturing and analyzing the packet under a Windows operating system; translating and converting the Ethernet packet by a process model of an External System Module;
3) and an SITL link is arranged in an OPNET networking protocol simulation system to connect an SITL gateway node and a data distribution and collection module.
Further, the step 4 configures an intermediate node having functions of distributing and collecting packets, that is, a data distribution and collection module, specifically:
the OPNET networking protocol simulation network is used for verifying the performance of a networking protocol and the influence of a wireless environment on tactical information transmission, and the data introduced through a semi-physical interface is the sum of all simulation node information sources, so that the acquired data needs to be distributed in real time according to the nodes to which the data belongs; the node which obtains the data wirelessly transmits the data to other nodes according to a hybrid TDMA networking protocol, and all the nodes which receive the data need to send the data back to the semi-physical simulation interface; therefore, an intermediate node with the functions of data packet distribution and collection is configured between the SITL gateway node and other nodes of the OPNET networking protocol simulation network, and the distribution and collection of the data packets are completed by writing a process model code.
Further, the step 5 of constructing the node model and the MAC protocol architecture of the networking protocol simulation network includes the following specific steps:
the time slot allocation of the nodes in the OPNET networking protocol simulation network adopts a mixed TDMA protocol scheme, the basic time unit of the network is a time frame, and the time frame consists of a fixed time slot block and a dynamic competition time slot block; all simulation nodes obtain fixed time slots in each time frame, and the nodes send data when the time slots to which the nodes belong arrive; all nodes can send burst-type service data through contention time slots, except that the fixedly allocated time slots can send data.
The invention is described in further detail below with reference to the figures and the embodiments.
Examples
For convenience of description, the system model shown in fig. 1 is given as follows:
the computer 1, the computer 2 and the message processor are connected through the Ethernet, a VR-Force scene simulation system for tactical deduction runs on the computer 1, and a system for OPNET networking protocol simulation runs on the computer 2. The intermediate server is used for message processing. The flow direction of the data flow of the whole system is as follows: after a VR-Force tactical scene is started, corresponding nodes execute respective tasks according to tactical task requirements, for example, after monitoring information is periodically broadcast by the node 1, the monitoring information is transmitted to a message processing server through a network port of a computer 1, a message processor performs message processing according to a consistent rule, complex tactical information is converted into a series of formatted message sets, a distribution function is executed to transfer message streams to a network card of the computer 2, a semi-physical simulation interface module bound with the network card captures data packets and forwards the data packets to an OPNET simulation network, an OPNET network setting data distribution module distributes the data packets to the corresponding nodes, and therefore data sent by the nodes in the VR-Force scene simulation system reach mapping nodes in the OPNET simulation system, namely the OPNET simulation nodes obtain real-time data sources.
The simulation node which obtains the data source broadcasts information to other simulation nodes through wireless transmission under a networking scheme which is designed in advance. And other nodes receiving the broadcast data packet send the data to the network card of the computer 2 through the semi-physical simulation interface, and then reach corresponding nodes of the VR-Force scene simulation system through the message processor, and each node performs corresponding action according to the message content after receiving the message. And completing data transfer of the joint simulation system.
The invention designs a combined simulation system, which mainly comprises a VR-Force scene simulation system and an OPNET simulation system configuration, and comprises the following detailed steps:
step 1: and configuring a VR-Force simulation scene. The tactical scene considered by the invention is a leading edge network positioned at the tail end of a battlefield and consists of a red part and a blue part. The red square comprises ten unmanned aerial vehicles and ten unmanned vehicles; the blue square comprises six unmanned vehicles which are divided into two groups for patrol monitoring, and the area is rectangular. The target of the red party is that the unmanned aerial vehicle carries out enemy area investigation and guides the unmanned aerial vehicle to carry out route evasion. Information is transmitted between the red unmanned aerial vehicle and the unmanned vehicle through wireless communication. The specific process is as follows: the blue sides are divided into two groups to carry out patrol investigation in two rectangular areas, the red unmanned aerial vehicle formation carries out investigation according to the forward movement of a specified route, and after an enemy area is found, the original driving route is changed by sending monitoring information to other units in the group, so that the enemy area is prevented from reaching the destination.
Step 2: and configuring an OPNET simulation scene. And configuring a simulation scene which is the same as the VR-Force in the OPNET, wherein the simulation scene comprises the position, the number and the function of the node model, the terrain, the environment, the longitude and latitude and the like, so that the wireless communication environment between the nodes in the OPNET is basically the same as the scene in the VR-Force. Different MAC addresses and IP addresses need to be set for each node in all the simulation node attributes.
And step 3: and constructing an OPNET system in-loop module. The system-in-the-loop (SITL) is a semi-physical simulation interface provided by the OPNET, and can map a plurality of physical network interfaces to different network addresses in the OPNET simulation network, so that equipment outside the OPNET simulation system can interact with the simulation network to form a joint simulation whole. The specific use method is as follows:
1) connecting the message processing server to a computer running an OPNET simulation network through an Ethernet;
2) setting a SITL gateway node in an OPNET simulation network, and configuring gateway node attributes, as shown in fig. 2, a gateway node model adopts a native _ virtual _ gateway _ to _ real _ world of the System, and a process model of an External System Module adopts a native _ virtual _ gateway _ esys. The SITL gateway node combines with WinPcap (WinPcap is a system for capturing and analyzing packets under a Windows operating system) to acquire the Ethernet port data packets. The process model of the External System Module translates and translates ethernet packets.
3) And arranging a SITL link in the OPNET simulation network to connect the SITL gateway node and other nodes in the OPNET simulation system.
And 4, step 4: and configuring the intermediate node with the functions of distributing and collecting the data packets. As shown in fig. 3, the OPNET simulation network is mainly used to verify the performance of the networking protocol and the influence of the wireless environment on tactical information transmission, and since the data introduced through the semi-physical interface is the sum of all simulation node information sources, the acquired data needs to be distributed in real time according to the nodes to which the data belongs. The nodes which acquire the data wirelessly transmit the data to other nodes according to a corresponding networking protocol, and all the nodes which receive the data need to send the data back to the semi-physical interface. Therefore, an intermediate node with the functions of distributing and collecting the data packets is configured between the SITL gateway node and other nodes of the OPNET simulation network to complete the distribution and collection of the data packets.
And 5: and designing a simulation node model and an MAC protocol architecture. The time slot distribution of the nodes in the OPNET simulation system designed by the invention adopts a mixed TDMA protocol scheme, the basic time unit of the network is a time frame, and the time frame consists of a fixed time slot block and a dynamic competition time slot block. All simulation nodes obtain fixed time slots in each time frame, and the nodes can send data when the time slots to which the nodes belong arrive; except that the fixedly allocated time slot can send data, all nodes can send burst-type service data through the competition time slot.
The work flow of the whole combined simulation system is shown in fig. 4, through the steps 1-5, the combined simulation system completes the relevant configuration, and starts the VR-Force scene simulation system to carry out tactical deduction; real-time data carrying tactical tasks generated in the deduction process form formatted messages through a message processing server and then are sent to an OPNET semi-physical simulation interface, and then the real-time data are introduced into an OPNET networking protocol simulation network through a data distribution and collection module; the data is transmitted in a wireless environment through a simulation network and then returned to the VR-Force tactical scene simulation system, and corresponding tactical actions are completed according to the received data; and finishing one round of VR-Force and OPNET combined data transmission.
In conclusion, the invention designs a system for joint simulation of the VR-Force tactical deduction simulation system and the OPNET networking protocol simulation system. The system gives consideration to real-time performance and authenticity of tactical deduction and uncertainty of wireless communication, so that the OPNET networking simulation system can load tactical deduction information which is more fit for actual tactical conditions in real time, and the accuracy and reliability of networking protocol design simulation are improved; meanwhile, wireless communication factors are considered in a tactical deduction system, and a test method which is closer to the cooperative combat in the actual battlefield environment is provided.
Claims (9)
1. A joint simulation system based on VR-Force and OPNET is characterized by comprising two computers and a message processing server which are connected through Ethernet, wherein a VR-Force scene simulation system is arranged on a first computer, and an OPNET networking protocol simulation system is arranged on a second computer;
the simulation scene of the VR-Force scene simulation system is specifically configured as follows: the simulation scene is a leading edge network positioned at the tail end of a battlefield and consists of a red part and a blue part; the red square comprises ten unmanned aerial vehicles and ten unmanned vehicles; the blue square comprises six unmanned vehicles which are divided into two groups for patrol monitoring, and the area is rectangular; the target of the red party is that an unmanned aerial vehicle carries out enemy area investigation and guides the unmanned aerial vehicle to carry out route evasion; through wireless communication transmission information between red side unmanned aerial vehicle and the unmanned car, specific process is: the blue unmanned aerial vehicles are divided into two groups to carry out patrol detection in two rectangular areas, the red unmanned aerial vehicles form a team to carry out forward detection according to a specified route, and after the blue unmanned vehicles are found, the original driving route is changed by sending monitoring messages to other unmanned aerial vehicles and unmanned vehicles in the group, so that the enemy area is prevented from reaching the destination;
configuring the same simulation scene as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the same simulation scene comprises the position, the number and the function of a node model, the terrain, the environment and the longitude and latitude;
data sent by nodes in the VR-Force scene simulation system form formatted messages through a message processing server, and the messages are sent to mapping nodes in an OPNET simulation system, namely OPNET simulation nodes; after the OPNET simulation node obtains a real-time data source, the OPNET simulation node broadcasts a message to other simulation nodes through wireless transmission under a mixed TDMA networking scheme, the other simulation nodes send the message to corresponding nodes of the VR-Force scene simulation system through a message processing server, and after receiving the message, each node performs corresponding action according to the message content.
2. The VR-Force and OPNET based joint simulation system of claim 1, wherein a specific process of data transmission by nodes in the VR-Force scene simulation system is as follows:
after the VR-Force tactical scene is started, according to the requirement of the tactical task, the corresponding nodes execute respective tasks and send out information carrying the tactical task, and the information is transmitted to the message processing server through the network port of the first computer.
3. The VR-Force and OPNET based joint simulation system of claim 1, wherein the specific process of the message processing server for message processing is as follows:
the message processing server processes the message according to a set message format packaging rule, and converts the information carrying the tactical mission into a series of formatted messages, wherein the formatted messages are messages which are required to be transmitted in the tactical mission implementation process, are in a predetermined format and are limited in types and are used for implementing combat control; and after the message processing server finishes message processing, the message processing server sends the formatted message to a network card of the second computer.
4. The VR-Force and OPNET based joint simulation system of claim 1 wherein the OPNET networking protocol simulation system is a semi-physical simulation system comprising a semi-physical simulation interface module, a data distribution and collection module and a networking protocol simulation network;
a semi-physical simulation interface module bound with a network card captures a data packet and forwards the data packet to a data distribution and collection module, the data distribution and collection module distributes the data packet to corresponding nodes in a networking protocol simulation network, and data sent by the nodes in the VR-Force scene simulation system reach mapping nodes in an OPNET simulation system, namely the OPNET simulation node obtains a real-time data source;
the simulation node which obtains the data source broadcasts the data packet to other simulation nodes through wireless transmission under a hybrid TDMA networking scheme; other nodes receiving the data packet send the data packet to a network card of a second computer through a data distribution and collection module and a semi-physical simulation interface so as to reach a message processing server, the message processing server performs logic processing on the data packet to generate a formatted message representing a corresponding action and sends the formatted message to a corresponding node of the VR-Force scene simulation system, and each node performs a corresponding action according to the content of the message after receiving the formatted message; and completing data transfer of the joint simulation system.
5. A joint simulation method based on VR-Force and OPNET is characterized by comprising the following specific steps:
step 1: configuring a simulation scene of the VR-Force scene simulation system, specifically as follows:
the simulation scene is a leading edge network positioned at the tail end of a battlefield and consists of a red part and a blue part; the red square comprises ten unmanned aerial vehicles and ten unmanned vehicles; the blue square comprises six unmanned vehicles which are divided into two groups for patrol monitoring, and the area is rectangular; the target of the red party is that an unmanned aerial vehicle carries out enemy area investigation and guides the unmanned aerial vehicle to carry out route evasion;
through wireless communication transmission information between red side unmanned aerial vehicle and the unmanned car, specific process is: the blue unmanned aerial vehicles are divided into two groups to carry out patrol detection in two rectangular areas, the red unmanned aerial vehicles form a team to carry out forward detection according to a specified route, and after the blue unmanned vehicles are found, the original driving route is changed by sending monitoring messages to other unmanned aerial vehicles and unmanned vehicles in the group, so that the enemy area is prevented from reaching the destination;
step 2: configuring a simulation scene of an OPNET networking protocol simulation system;
and step 3: constructing a semi-physical simulation interface of an OPNET networking protocol simulation system;
and 4, step 4: configuring an intermediate node with the functions of distributing and collecting data packets, namely a data distributing and collecting module;
and 5: constructing a node model and an MAC protocol architecture of a networking protocol simulation network;
step 6: through the steps 1 to 5, the joint simulation system completes the relevant configuration and starts the VR-Force scene simulation system to carry out tactical deduction; real-time data carrying tactical tasks generated in the deduction process form formatted messages through a message processing server and then are sent to an OPNET semi-physical simulation interface, and then the real-time data are introduced into an OPNET networking protocol simulation network through a data distribution and collection module; the data is transmitted in a wireless environment through a simulation network and then returned to the VR-Force tactical scene simulation system, and corresponding tactical actions are completed according to the received data; and finishing one round of VR-Force and OPNET combined data transmission.
6. The VR-Force and OPNET based joint simulation method of claim 5, wherein the step 2 configures a simulation scenario of the OPNET networking protocol simulation system, specifically as follows:
configuring simulation scenes which are the same as the VR-Force scene simulation system in the OPNET networking protocol simulation system, wherein the simulation scenes comprise the positions, the number and the functions of node models, the terrain, the environment and the longitude and latitude, and the wireless communication environment among the nodes in the OPNET networking protocol simulation system is ensured to be the same as that in the VR-Force scene simulation system; different MAC addresses and IP addresses are set for each node in all emulated node attributes.
7. The VR-Force and OPNET based joint simulation method of claim 5, wherein the step 3 of constructing the semi-physical simulation interface of the OPNET networking protocol simulation system comprises the following specific steps:
the OPNET provides a semi-physical simulation interface in a ring module, namely SITL, through the system, the module provides a node model and a link model for creating SITL gateway nodes and links, and maps a plurality of physical network interfaces to different network addresses in the OPNET simulation network, so that equipment outside an OPNET networking protocol simulation system can interact with the OPNET simulation network to form a joint simulation whole, and the steps are as follows:
1) connecting the message processing server to a second computer running an OPNET networking protocol simulation system through an Ethernet;
2) setting an SITL gateway node in an OPNET networking protocol simulation System, configuring node attributes, wherein a node model of the SITL gateway node adopts a native _ virtual _ gateway _ to _ real _ world of the System, and a process model of an External System Module in the native _ virtual _ gateway _ to _ real _ world adopts native _ virtual _ gateway _ esys; the SITL gateway node combines with WinPcap to acquire an Ethernet port data packet, wherein WinPcap is a system for capturing and analyzing the packet under a Windows operating system; translating and converting the Ethernet packet by a process model of an External System Module;
3) and an SITL link is arranged in an OPNET networking protocol simulation system to connect an SITL gateway node and a data distribution and collection module.
8. The VR-Force and OPNET-based joint simulation method of claim 5, wherein the step 4 configures an intermediate node with packet distribution and collection functions, namely a data distribution and collection module, and specifically comprises:
the OPNET networking protocol simulation network is used for verifying the performance of a networking protocol and the influence of a wireless environment on tactical information transmission, and the data introduced through a semi-physical interface is the sum of all simulation node information sources, so that the acquired data needs to be distributed in real time according to the nodes to which the data belongs; the node which obtains the data wirelessly transmits the data to other nodes according to a hybrid TDMA networking protocol, and all the nodes which receive the data need to send the data back to the semi-physical simulation interface; therefore, an intermediate node with the functions of data packet distribution and collection is configured between the SITL gateway node and other nodes of the OPNET networking protocol simulation network, and the distribution and collection of the data packets are completed by writing a process model code.
9. The VR-Force and OPNET based joint simulation method of claim 5, wherein the step 5 of constructing the node model and the MAC protocol architecture of the networking protocol simulation network comprises the following specific steps:
the time slot allocation of the nodes in the OPNET networking protocol simulation network adopts a mixed TDMA protocol scheme, the basic time unit of the network is a time frame, and the time frame consists of a fixed time slot block and a dynamic competition time slot block; all simulation nodes obtain fixed time slots in each time frame, and the nodes send data when the time slots to which the nodes belong arrive; all nodes can send burst-type service data through contention time slots, except that the fixedly allocated time slots can send data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874430.1A CN112115589B (en) | 2020-08-27 | 2020-08-27 | VR-Force and OPNET based joint simulation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874430.1A CN112115589B (en) | 2020-08-27 | 2020-08-27 | VR-Force and OPNET based joint simulation system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112115589A CN112115589A (en) | 2020-12-22 |
| CN112115589B true CN112115589B (en) | 2021-10-29 |
Family
ID=73804414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874430.1A Active CN112115589B (en) | 2020-08-27 | 2020-08-27 | VR-Force and OPNET based joint simulation system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112115589B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112800638B (en) * | 2021-04-12 | 2021-08-13 | 广东工业大学 | Intelligent substation simulation test method, device, terminal and storage medium |
| CN113660688B (en) * | 2021-07-08 | 2023-09-12 | 中国人民解放军海军工程大学 | Battlefield long-distance large-scale dense networking semi-physical simulation platform |
| CN113965470B (en) * | 2021-09-30 | 2023-08-25 | 中国人民解放军空军工程大学 | Aviation information network experiment simulation system |
| CN115277450B (en) * | 2022-07-27 | 2023-09-19 | 中国人民解放军国防科技大学 | Virtual-real combined heterogeneous communication network fusion system based on OPNET and application |
| CN115277448B (en) * | 2022-07-27 | 2023-09-19 | 中国人民解放军国防科技大学 | OPNET-based communication system digital twin model development system and application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7765093B2 (en) * | 2005-09-19 | 2010-07-27 | Itt Manufacturing Enterprises, Inc. | Network modeling system and method of simulating network operation with configurable node models |
| CN111314166B (en) * | 2019-12-30 | 2021-04-30 | 中国人民解放军军事科学院国防科技创新研究院 | Multi-node comprehensive simulation system and method |
-
2020
- 2020-08-27 CN CN202010874430.1A patent/CN112115589B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112115589A (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112115589B (en) | VR-Force and OPNET based joint simulation system and method | |
| CN107682068B (en) | Task-driven reconfigurable spatial information network resource management architecture and method | |
| CN103647664B (en) | Towards the distributing emulation system of many repeater satellite communications of deep space | |
| CN112327667B (en) | Semi-physical simulation element design method for large-scale unmanned cluster network | |
| CN107092270A (en) | Realize method, the apparatus and system of formation flight | |
| CN110677829B (en) | LTE-V2X test system and test method for long term evolution vehicle to everything | |
| EP1619643A2 (en) | Simulation of effects with an impact on communication quality | |
| CN104880961A (en) | Real-time simulation experiment system of multi-unmanned plane distributed synergetic hardware in loop | |
| CN114338418B (en) | Virtual-real combined information network verification platform | |
| CN115185631A (en) | World integrated twinning simulation system and method | |
| Zema et al. | The CUSCUS simulator for distributed networked control systems: Architecture and use-cases | |
| CN110674584B (en) | Multi-aircraft joint simulation system | |
| Miyachi et al. | Extensions for wireless technology emulation to wire-based network testbed | |
| CN103763142B (en) | Multimode isomery DTN simulation verification system and method | |
| CN116224835A (en) | Unmanned aerial vehicle information attack semi-physical test architecture design method | |
| Zema et al. | CUSCUS: CommUnicationS-control distributed simulator | |
| CN108880948B (en) | Equipment test verification system and method based on FC network | |
| CN115242655B (en) | Container-based constellation network simulation method, device, equipment and storage medium | |
| CN114063468A (en) | Data interaction method suitable for wireless ad hoc network semi-physical simulation system | |
| CN103745049B (en) | A kind of novel multi-factor tactical internet connection reliability simulation method | |
| Djaidja et al. | Drive-b5g: A flexible and scalable platform testbed for b5g-v2x networks | |
| CN115913426A (en) | Virtual-real cooperative world integrated scene simulation system | |
| Pusapati et al. | Simulation of NR-V2X in a 5G Environment using OMNeT++ | |
| Liang et al. | Research on simulation technology for space-ground integrated network | |
| Zhang et al. | Research on cyber-physical systems based on software definition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |