阅读说明：本技术 一种无线自组织网络半实物仿真装置和方法 (Wireless self-organizing network semi-physical simulation device and method ) 是由 贾越普 刘志峰 李梦超 于 2021-02-08 设计创作，主要内容包括：本发明提供一种无线自组织网络半实物仿真装置和方法,包括信源/信宿设备、自组织网络实物设备、节点移动数据产生系统和自组织网络仿真单元,所述的自组织网络仿真单元包括虚/实数据交互模块、目标移动管理模块、实物设备映射节点和仿真虚拟节点,完成网络节点的半实物仿真计算和全数字仿真的计算。本发明将无线自组织网络半实物仿真中的业务信息采用实物设备来完成,能够为网络施加真实的网络负载,使得网络协议的仿真验证的真实性大幅提高。(The invention provides a wireless self-organizing network semi-physical simulation device and a wireless self-organizing network semi-physical simulation method, which comprise information source/information sink equipment, self-organizing network physical equipment, a node mobile data generation system and a self-organizing network simulation unit, wherein the self-organizing network simulation unit comprises a virtual/real data interaction module, a target mobile management module, a physical equipment mapping node and a simulation virtual node, and semi-physical simulation calculation and all-digital simulation calculation of network nodes are completed. The invention completes the service information in the wireless self-organizing network semi-physical simulation by using physical equipment, can apply real network load to the network, and greatly improves the authenticity of the simulation verification of the network protocol.)

1. A wireless self-organizing network semi-physical simulation device is characterized in that the device comprises information source/information sink equipment, self-organizing network physical equipment, a node mobile data generating system and a self-organizing network simulation unit,

the node moving data generation system obtains parameter data of node movement, processes the data and sends the processed data to the self-organizing network simulation unit;

the information source/information sink equipment serves as a generating end and a using end of the self-organizing network service information, generates application layer service data according to a real work flow and an information format, transmits the application layer service data to the self-organizing network physical equipment, and receives application layer service information of other information sources/information sinks transmitted by the self-organizing network physical equipment;

the self-organizing network physical device runs network application layer and network layer software inside to obtain related data, converts the obtained data into a data format required by simulation through a virtual/real data interaction interface, and transmits the data format to a self-organizing network simulation unit;

the self-organizing network simulation unit comprises a virtual/real data interaction module, a node movement management module, a physical device mapping node and a simulation virtual node, wherein the virtual/real data interaction module receives data transmitted by a virtual/real data interaction interface and transmits the data to the corresponding physical device mapping node, receives data of the physical device mapping node and transmits the data to the self-organizing network physical device through the virtual/real data interaction interface of the self-organizing network physical device corresponding to the physical device mapping node;

the physical device mapping node receives data of an application layer and a network layer of the self-organizing network physical device, establishes simulation models of a network data link layer and a physical layer, and obtains data calculated by the simulation models, so that complete data of the network node is obtained;

the node mobile management module obtains mobile related data of a node mobile data generation system, processes the mobile data and transmits the processed result to the physical equipment mapping node and the simulation virtual node, and the self-organizing network physical equipment, the physical equipment mapping node and the simulation virtual node calculate whether the network is in a connected state or not according to the network data and the mobile data processed result obtained by calculation;

the simulation virtual node establishes models of an application layer, a network layer, a data link layer and a physical layer of the network, and performs simulation to obtain a corresponding simulation result.

2. The wireless self-organizing network semi-physical simulation apparatus of claim 1, wherein the source/sink devices, the self-organizing network physical devices and the physical device mapping nodes are in a one-to-one relationship.

3. The wireless ad-hoc network semi-physical simulation apparatus of claim 1, wherein the number of simulation virtual nodes is the total number of nodes to be simulated minus the number of physical device mapping nodes.

4. The wireless self-organizing network semi-physical simulation apparatus of claim 2, wherein the number of the source/sink devices and the self-organizing network physical devices is not less than 2.

5. The simulation method of the wireless ad-hoc network semi-physical simulation device according to claims 1-4, wherein the method comprises the steps of:

electrifying, initializing and operating the information source/information sink equipment and the self-organization network physical equipment, initializing a self-organization network simulation unit and acquiring node mobile data;

the information source/information sink equipment generates data and sends the data to the self-organizing network physical equipment, and the self-organizing network physical equipment completes functions of an application layer and a network layer;

determining a transmission path of data according to a network communication relation among nodes of the self-organizing network and a source/destination address of the data;

if a transmission path for data interaction between the self-organization network physical node and a simulation virtual node in the self-organization network simulation unit or data interaction between the self-organization network physical nodes exists, the self-organization network physical equipment transmits data of an application layer and data of a network layer to the self-organization network simulation unit; otherwise, the self-organizing network physical equipment does not transmit the data of the application layer and the network layer to the self-organizing network simulation unit;

after receiving and converting the data of the application layer and the network layer, the self-organizing network simulation unit simulates a data link layer protocol and a physical layer protocol by combining the node mobile data and judges whether a transmission path can be communicated or not according to a simulation result; if the data is communicated, the next step is carried out, and if the data is not communicated, the data is discarded;

if a transmission path for data exchange between the self-organization network simulation unit and the self-organization network real object exists, the data of the self-organization network simulation unit is transmitted to self-organization network real object equipment after data conversion according to the situation, and the next step is carried out; if the simulation result does not exist, sending the data to a simulation virtual node inside the self-organizing network simulation unit for simulation and obtaining a simulation result;

the self-organizing network physical device processes the obtained data, completes the functions of an application layer and a network layer and then sends the data to the information source/information sink device, and therefore a simulation result is obtained.

6. The semi-physical simulation method for self-organizing networks according to claim 5, wherein the transmission path of the data comprises:

path one: the information source/information sink equipment I transmits data to the self-organizing network physical equipment I, the self-organizing network physical equipment I transmits the data to the physical equipment mapping node I, the physical equipment mapping node I transmits the data to the physical equipment mapping node II, the physical equipment mapping node II transmits the data to the self-organizing network physical equipment II, and the self-organizing network physical equipment II transmits the data to the information source/information sink equipment II;

and a second route: carrying out data transmission between the simulation virtual nodes;

path three: the information source/information sink equipment transmits data to the self-organizing network physical equipment, the self-organizing network physical equipment transmits the data to the physical equipment mapping node, and the physical equipment mapping node transmits the data to the simulation virtual node;

and a fourth path: the simulation virtual node transmits the obtained data to the physical equipment mapping node, the physical equipment mapping node transmits the data to the self-organizing network physical equipment, and the self-organizing network physical equipment transmits the data to the information source/information sink equipment.

Technical Field

The invention belongs to the technical field of wireless network semi-physical simulation, and particularly relates to a wireless self-organizing network semi-physical simulation device and method.

Background

At present, the simulation means of the wireless self-organizing network mainly comprises digital simulation and semi-physical simulation. The establishment of the simulation model of the digital simulation completely adopts a mathematical model, describes a system by using a mathematical language, writes a program and researches an actual system in a computer environment. Its advantages are high flexibility, easy changing system structure and parameters, high efficiency and high repeatability. A disadvantage is that it may be difficult to build accurate models for some complex systems. The semi-physical simulation is to insert physical objects into the simulation system as much as possible under the condition that the condition allows so as to replace the mathematical model of the corresponding part, thereby being closer to the actual condition, obtaining more exact information and improving the confidence coefficient of the simulation result. The simulation technology can expand the scale of physical simulation, can make up the problem of low simulation precision of a computer, and is the main direction of the current wireless self-organizing network simulation technology research.

The wireless self-organizing network protocol stack is divided into an application layer, a network layer, a data link layer and a physical layer from top to bottom according to an OSI seven-layer protocol model. In the current research of semi-physical simulation methods of wireless self-organizing networks, some methods aiming at the digital and physical combined simulation of a physical layer are provided, but the digital and physical combined simulation methods aiming at an application layer, a network layer and the like are not found yet. For example: a mapping and joint simulation method of a physical device and a digital simulation environment is provided in 'a semi-physical simulation system and a communication method thereof', and the method mainly realizes the verification of a physical layer technology in the physical device and the verification of other technologies in the digital simulation environment. A simulation synchronization method and a communication bandwidth guarantee method between a digital simulation environment and physical equipment are mainly provided in an aviation ad hoc network semi-physical network simulation platform.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a self-organizing network semi-physical simulation device and a self-organizing network semi-physical simulation method. The scheme of the invention can solve the problems in the prior art.

The technical solution of the invention is as follows:

according to a first aspect, a wireless self-organizing network semi-physical simulation device is provided, which comprises information source/information sink equipment, self-organizing network physical equipment, a node mobile data generation system and a self-organizing network simulation unit, wherein the node mobile data generation system obtains parameter data of node movement, processes the data and sends the processed data to the self-organizing network simulation unit; the information source/information sink equipment serves as a generating end and a using end of the self-organizing network service information, generates application layer service data according to a real work flow and an information format, transmits the application layer service data to the self-organizing network physical equipment, and receives application layer service information of other information sources/information sinks transmitted by the self-organizing network physical equipment; the self-organizing network physical device runs network application layer and network layer software inside to obtain related data, converts the obtained data into a data format required by simulation through a virtual/real data interaction interface, and transmits the data format to a self-organizing network simulation unit; the self-organizing network simulation unit comprises a virtual/real data interaction module, a node movement management module, a physical device mapping node and a simulation virtual node, wherein the virtual/real data interaction module receives data transmitted by a virtual/real data interaction interface and transmits the data to the corresponding physical device mapping node, receives data of the physical device mapping node and transmits the data to the self-organizing network physical device through the virtual/real data interaction interface of the self-organizing network physical device corresponding to the physical device mapping node; the physical device mapping node receives data of an application layer and a network layer of the self-organizing network physical device, establishes simulation models of a network data link layer and a physical layer, and obtains data calculated by the simulation models, so that complete data of the network node is obtained; the node mobile management module obtains mobile related data of a node mobile data generation system, processes the mobile data and transmits the processed result to the physical equipment mapping node and the simulation virtual node, and the self-organizing network physical equipment, the physical equipment mapping node and the simulation virtual node calculate whether the network is in a connected state or not according to the network data and the mobile data processed result obtained by calculation; the simulation virtual node establishes models of an application layer, a network layer, a data link layer and a physical layer of the network, and performs simulation to obtain a corresponding simulation result.

Furthermore, the information source/information sink equipment, the self-organizing network physical equipment and the physical equipment mapping nodes are in one-to-one correspondence relationship.

Furthermore, the number of the simulation virtual nodes is the total number of the nodes needing simulation minus the number of the nodes mapped by the physical device.

Preferably, the number of the source/sink devices and the self-organizing network physical devices is not less than 2.

According to a second aspect, there is provided the above self-organizing network semi-physical simulation method, including the following steps:

electrifying, initializing and operating the information source/information sink equipment and the self-organization network physical equipment, initializing a self-organization network simulation unit and acquiring node mobile data;

the information source/information sink equipment generates data and sends the data to the self-organizing network physical equipment, and the self-organizing network physical equipment completes functions of an application layer and a network layer;

determining a transmission path of data according to a network communication relation among nodes of the self-organizing network and a source/destination address of the data;

if a transmission path for data interaction between the self-organization network physical node and a simulation virtual node in the self-organization network simulation unit or data interaction between the self-organization network physical nodes exists, the self-organization network physical equipment transmits data of an application layer and data of a network layer to the self-organization network simulation unit; otherwise, the self-organizing network physical equipment does not transmit the data of the application layer and the network layer to the self-organizing network simulation unit;

after receiving and converting the data of the application layer and the network layer, the self-organizing network simulation unit simulates a data link layer protocol and a physical layer protocol by combining the node mobile data and judges whether a transmission path can be communicated or not according to a simulation result; if the data is communicated, the next step is carried out, and if the data is not communicated, the data is discarded;

if a transmission path for data exchange between the self-organization network simulation unit and the self-organization network real object exists, the data of the self-organization network simulation unit is transmitted to self-organization network real object equipment after data conversion according to the situation, and the next step is carried out; if the simulation result does not exist, sending the data to a simulation virtual node inside the self-organizing network simulation unit for simulation and obtaining a simulation result;

the self-organizing network physical device processes the obtained data, completes the functions of an application layer and a network layer and then sends the data to the information source/information sink device, and therefore a simulation result is obtained.

Further, the transmission path of the data includes:

path one: the information source/information sink equipment I transmits data to the self-organizing network physical equipment I, the self-organizing network physical equipment I transmits the data to the physical equipment mapping node I, the physical equipment mapping node I transmits the data to the physical equipment mapping node II, the physical equipment mapping node II transmits the data to the self-organizing network physical equipment II, and the self-organizing network physical equipment II transmits the data to the information source/information sink equipment II;

and a second route: carrying out data transmission between the simulation virtual nodes;

path three: the information source/information sink equipment transmits data to the self-organizing network physical equipment, the self-organizing network physical equipment transmits the data to the physical equipment mapping node, and the physical equipment mapping node transmits the data to the simulation virtual node;

and a fourth path: the simulation virtual node transmits the obtained data to the physical equipment mapping node, the physical equipment mapping node transmits the data to the self-organizing network physical equipment, and the self-organizing network physical equipment transmits the data to the information source/information sink equipment.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention completes the service information in the self-organizing network semi-physical simulation by using physical equipment, can apply real network load to the network, and greatly improves the authenticity of the simulation verification of the network protocol;

(2) and comparing the data obtained by the semi-physical simulation with the data obtained by the digital simulation, the correctness of the introduced physical equipment can be verified, and the correctness of the subsequent network physical development is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural diagram of a self-organizing network semi-physical simulation apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating a self-organizing network semi-physical simulation procedure according to an embodiment of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1, there is provided a self-organizing network semi-physical simulation apparatus according to an embodiment of the present invention, which includes a source/sink device, a self-organizing network physical device, a node movement data generation system, and a self-organizing network simulation unit,

the node movement data generation system obtains parameter data of node movement, processes the data and sends the processed data to the self-organizing network simulation unit, and in one embodiment, the data of the node movement comprises a track, a posture and a speed;

the information source/information sink equipment is used as a generating end and a using end of the self-organizing network service information, generates application layer service data according to a real working flow and an information format, transmits the application layer service data to the self-organizing network physical equipment, and receives application layer service information of other information sources/information sinks transmitted by the self-organizing network physical equipment;

the self-organizing network real object equipment runs network application layer and network layer software inside to obtain related data, converts the obtained data into a data format required by simulation through a virtual/real data interaction interface, and transmits the data format to a self-organizing network simulation unit;

the self-organizing network simulation unit comprises a virtual/real data interaction module, a node movement management module, a physical device mapping node and a simulation virtual node;

and the virtual/real data interaction module receives data transmitted by the virtual/real data interaction interface of the self-organizing network physical equipment and transmits the data to the corresponding physical equipment mapping node. In addition, the data of the mapping node of the physical equipment is received and transmitted to the corresponding self-organizing network physical equipment through a virtual/real data interaction interface;

the physical device mapping node receives data of an application layer and a network layer of the self-organizing network physical device, establishes simulation models of a network data link layer and a physical layer, and obtains data calculated by the simulation models, so that complete data of the network node is obtained;

the node movement management module obtains movement related data of the node movement data generation system, processes the movement data and transmits the processed result to the physical device mapping node and the simulation virtual node, and the physical device mapping node and the simulation virtual node calculate whether the network is in a connected state or not according to the network data and the movement data processed result obtained by calculation;

the simulation virtual node establishes models of an application layer, a network layer, a data link layer and a physical layer of the network, and performs simulation to obtain a corresponding simulation result. The simulation initial data sources of the simulation virtual nodes are three, one is data generated by the simulation virtual node application layer, the size, the period and the like of the data are the same as possible as those of data generated by the information source/information sink equipment, the other is data generated by other simulation virtual nodes, and the other is data generated by the physical equipment mapping node. The simulation virtual nodes are arranged for supplementing the number of nodes of the self-organization network to be simulated and simulating the scale of the real self-organization network to be simulated, so that the result of semi-physical simulation is more real, and the aim of obtaining the most real result by using the least physical equipment is fulfilled.

Further, in one embodiment, the source/sink devices, the self-organizing network physical devices and the physical device mapping nodes are in a one-to-one correspondence relationship.

Further, in one embodiment, the number of the simulation virtual nodes is the total number of the nodes needing simulation minus the number of the physical device mapping nodes.

Preferably, in an embodiment, the number of the source/sink devices and the self-organizing network physical devices is not less than 2, so that a complete result with physical objects participating in the simulation is obtained.

In a specific embodiment, as shown in fig. 1, the source/sink device, the ad hoc network physical device and the simulation virtual node are set as two devices, and data exchange is shown in the figure.

According to a second embodiment, as shown in fig. 2, there is provided the above-mentioned semi-physical simulation method for self-organizing network, including the following steps:

step one, electrifying, initializing and operating information source/information sink equipment and self-organizing network physical equipment, initializing a self-organizing network simulation unit and acquiring node mobile data;

step two, the information source/information sink equipment generates data and sends the data to the self-organizing network physical equipment, and the self-organizing network physical equipment completes functions of an application layer and a network layer;

step three, determining a transmission path of the data according to the network communication relation among the nodes of the self-organizing network and the source/destination address of the data;

further in one embodiment, the transmission path of the data includes:

path one: the first information source/information sink equipment transmits data to the first self-organizing network physical equipment, the first self-organizing network physical equipment transmits the data to a first physical equipment mapping node through a first virtual/real data interaction interface and a first virtual/real data interaction module, the first physical equipment mapping node transmits the data to a second physical equipment mapping node, the second physical equipment mapping node transmits the data to a second self-organizing network physical equipment through a second virtual/real data interaction module and a second virtual/real data interaction interface, and the second self-organizing network physical equipment transmits the data to the second information source/information sink equipment; the method is a network process with a real object participating in complete path simulation, namely, both ends of generating data and receiving data in the network are real object devices;

and a second route: carrying out data transmission between the simulation virtual nodes; the network process is a network process for completely simulating data, namely, two ends of generating data and receiving data in the network are simulation virtual nodes;

path three: the information source/information sink equipment transmits data to self-organizing network physical equipment, the self-organizing network physical equipment transmits the data to a physical equipment mapping node, and the physical equipment mapping node transmits the data to a simulation virtual node, wherein the simulation process is a simulation process with half of physical participation, namely, one end generating the data in the network is a physical object, and one end receiving the data in the network is a simulation virtual node;

the simulation virtual node transmits the obtained data to a physical device mapping node, the physical device mapping node transmits the data to self-organizing network physical equipment, and the self-organizing network physical equipment transmits the data to information source/information sink equipment; the simulation process is a simulation process with half of real objects participating, namely, one end of the network generating data is a simulation virtual node, and one end of the network receiving data is a real object.

If the transmission path has the condition that the self-organization network physical node and the simulation virtual node in the self-organization network simulation unit carry out data interaction or the self-organization network physical node carries out data interaction, namely the condition of the path one or the path three, the self-organization network physical device transmits the data of the application layer to the self-organization network simulation unit; otherwise, namely under the conditions of the path two and the path four, the self-organization network physical equipment does not transmit the data of the application layer to the self-organization network simulation unit, and the simulation virtual nodes in the self-organization network simulation unit are combined with the node moving data to carry out simulation to obtain a simulation result;

in one embodiment, the simulation initial data source of the simulation virtual node is three, one of the three sources is data generated by the application layer of the simulation virtual node, the size and the period of the data are as same as those generated by the source/sink device as possible, the other two sources is data generated by other simulation virtual nodes, and the other three sources is data generated by the physical device mapping node.

After the self-organizing network simulation unit receives the data and carries out data conversion, the self-organizing network simulation unit combines the node mobile data to carry out data link layer and physical layer protocol simulation;

step six, if data obtained by calculation of the self-organization network simulation unit and the self-organization network real object are subjected to data exchange in the transmission path, namely the situation of a path one or a path four exists, the data of the self-organization network simulation unit are sent to self-organization network real object equipment after data conversion according to the situation, and the next step is carried out; if the simulation result does not exist, namely the situation of the path two or the path three exists, the obtained data is sent to a simulation virtual node in the self-organizing network simulation unit for simulation, and a simulation result is obtained;

and seventhly, the self-organizing network physical equipment completes the functions of an application layer and a network layer after processing according to the obtained data and then sends the data to information source/information sink equipment, so that a simulation result is obtained.

According to the invention, the simulation result with the participation of the real object in the semi-physical simulation is compared with the result of the digital simulation, and whether the simulation results of the same node are the same or not is compared, so that whether the function realization of the self-organized network physical device in the semi-physical simulation is correct or not is obtained, whether the function realization of the self-organized network physical device is correct or not can be determined before the formal physical device is tested, and the cost of physical testing is reduced.

In summary, compared with the prior art, the self-organizing network semi-physical simulation apparatus and method provided by the invention have at least the following advantages:

(1) the invention completes the service information in the self-organizing network semi-physical simulation by using physical equipment, can apply real network load to the network, and greatly improves the authenticity of the simulation verification of the network protocol;

(2) according to the invention, the data obtained by semi-physical simulation is compared with the data obtained by digital simulation, so that the correctness of function realization of the introduced physical equipment can be verified, and the correctness of subsequent physical equipment development is improved.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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.