Multi-node comprehensive simulation system and method

Abstract

The invention discloses a multi-node comprehensive simulation system and method. The system comprises a scene simulation module, a simulation main control module, a network simulation module, a channel transmission simulation module and a physical platform. The method comprises the steps that a scene simulation module operates according to a preset script to generate a formatted message; each nodeadvances on a specified map according to the scene script, and in the operation process, if the environment change is found, a simulation main control program is notified to adjust a link model in achannel transmission simulation module; the channel transmission simulation module converts and receives the data information sent by the scene simulation module through a simulation main control program; the network simulation module feeds back the packet loss condition of a data packet to the simulation main control module in real time, and the simulation main control module maps the packet losscondition to each node deduction process of scene simulation to simulate the influence of data transmission in a complex environment on scene simulation so as to form a simulation closed loop. According to the method, the requirements of various comprehensive simulations are met, and the development cycle and difficulty of the system are reduced.

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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