A multi-node comprehensive simulation system and method

Abstract

The invention discloses a multi-node comprehensive simulation system and method. The system includes scene simulation module, simulation main control module, network simulation module, channel transmission simulation module and physical platform. The method is: the scene simulation module runs according to the preset script, and generates a formatted message; each node travels on the designated map according to the scene script, and during the running process, if the environment changes, it will notify the simulation main control program to adjust the channel transmission in the simulation module. Link model; the channel transmission simulation module converts and receives the data information sent by the scene simulation module through the simulation main control program; through the network simulation module, the packet loss situation of the data packet is fed back to the simulation main control module in real time, and the simulation main control module according to the packet loss situation Map to each node of the scene simulation to deduce the process, simulate the impact of data transmission on the scene simulation in a complex environment, and form a closed loop of simulation. The invention satisfies the needs of various comprehensive simulations and reduces the cycle and difficulty of system development.

Description

technical field [0001] The invention relates to the technical field of system simulation software, in particular to a multi-node comprehensive simulation system and method. Background technique [0002] With the rapid development of mobile communication networks and the Internet of Things, the scale and complexity of networks are increasing rapidly, the development cost of hardware equipment is high, the development cycle is long, and the cost of error correction is high. It is becoming more and more difficult to complete network function verification by stacking hardware equipment. Generally, before the development of hardware equipment, the scene application, network protocol, communication protocol and other module simulations are carried out to evaluate whether the scheme meets the design requirements, so as to reduce the risk of later development; and the specific module simulation will focus on the scene application, network layer, physical Layer and other protocol alg...

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Problems solved by technology

The above-mentioned simulation software can play an active role in evaluating whether the scheme meets the design requirements and guiding the development and implementation of the system, but the interaction between the modules is mostly reflected in a static model, which cannot reflect the real environment changes during the system operation

[0003] Specifically, the existing simulation models are generally carried out prior to the development of the hardware or simultaneously with the development of the hardware equipment. After the development of the hardware equipment is completed, each algorithm is transplanted to the hardware equipment for system verification. This process has the following defects: (1) Generally It only performs separate simulation for a certain software protocol or functional module such as scenario, network simulation, communication simulation, and channel model simulation, lacking complete system simulation results and comprehensive evaluation capabilities from the upper layer to the lower layer, such as the impact of complex terrain environments during the scenario simulation process 1. Changes in the mutual positions of node platforms will lead to changes in the status of the communication link, and changes in the status of the communication link will affect the network status and the success rate of business transmission, which in turn will affect the scene simulation. However, the existing simulation system cannot reflect this mutual relationship. ; (2) The mutual influence of each module can only be approximated by simplifying the model. In the simulation process, only a single model can be used to approximate it. The model cannot be combined with the dynamic reaction link changes in the scene simulation process, and the simulation and the real environment are quite different. ;(3) Physical platform simulation is generally introduced in the communication simulation process, but other module simulations seldom introduce physical platforms into the simulation system for overall evaluation. The overall model environment is biased toward the ideal environment, and there are differences between the simulation model and the real environment; (4) In the early stage of design, the adequacy of system simulation verification is insufficient, the system modeling is not complete, and the uncertainty is large, resulting in high cost of later problem solving

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