针对无人机实装训练的不足及模拟训练系统设计的现状,提出一种将虚拟仿真技术与无人机维护训练相结合的方法,模拟出近似真实的学习训练环境;遵循逼真性、完备性、实用性、模块化及开放性的原则进行系统总体设计,采用C/S(客户端/服务器)架构,将整个系统工程划分为基础层、数据访问层、业务逻辑层和界面展示层4个层次,并预留接口,便于后期的功能扩展;采用SQLite数据库引擎存储和管理系统信息,并通过脚本编写实现与Unity的通信;借助Unity3D软件,结合中心点围绕技术、四元数旋转技术和鼠标拾取技术,实现无人机交互操作;最终,展示了设备学习、仿真训练及考核评估等功能模块,在实时性、规范性及逼真度等方面都到达了装备训练教学的要求.%Aiming at the shortage of practical training for UAV and the present situation of virtual training system design,the methods of combining virtual simulation technology with UAV maintenance training was put forward in the paper.The approximating learning and training environment was simulated.The system design followed the principle of lifelike,completeness,practicability,modular and openness.The framework of C/S was used to dividing the system engineering into four levels:base layer,data access layer,business logic layer and interface layer.The ports were reserved for later functional extensions.The database engine of SQLite was used to storing and managing system information,and the communication between SQLite and Unity was achieved by scripting.With the help of center point surround technology,quaternion rotating technology and mouse pickup technology,the interactions on the plane were carried out in the environment of Unity3D.Finally,the function modules of equipment learning,simulation training,assessment and evaluation were demonstrated in the paper.The performance indexes of the UAV simulation training system,such as real-time,normative and fidelity,could meet the needs of UAV equipment training and teaching.
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