Twin research of intelligent logistics lab based on Unity3D
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摘要: 为了共享实验资源，文章采用数字孪生技术，通过Unity3D虚拟现实开发平台对智慧物流实验室进行研究并设计一套云实验系统。根据已有的智慧物流实验设备，包括立体仓库、传送设备、堆垛机、分拣装置和AGV等为研究对象，运用SolidWorks与3DMax完成对实验设备三维模型的建立，运用S7-PLCSIM Advancde完成对物流设备的控制程序，通过PLC与Unity3D的通信和数据交互，最终在Unity3D的虚拟环境中完成物流运输的虚拟仿真实验系统。通过该系统可以在虚拟空间可以实现物料的传送、入库、出库等物流运输过程，实现物流仓储及运输工作过程的虚拟可视化，也可以通过编写的PLC程序完成物流设备的工作动作，实现异地云实验。该系统可以有效解决高端实验设备不足等问题，让资源匮乏的高校学生得到应有的实验训练、提高操作技能。Abstract: Aiming at the problems of limited experimental equipment; According to the digital twin technology, the logistics and transportation equipment was studied and a virtual simulation experiment system was designed through the Unity3D virtual reality development platform. According to the existing logistics and transportation equipment, including conveying materials, stacker storage and other equipment as the research object, the use of SolidWorks and 3DMax to complete the establishment of the three-dimensional model of the experimental equipment, the use of S7-PLCSIM Advancde to complete the control program of the logistics equipment, through the PLC and Unity3D communication and data interaction, and finally in the virtual environment of Unity3D to complete the virtual simulation experimental system of logistics transportation. Through the system, the logistics and transportation process such as material transfer, warehousing and outbound can be realized in the virtual space, and the virtual visualization of the logistics and transportation work process can be realized, and the working action of logistics equipment can be completed through the PLC program written, which can effectively solve the problems of insufficient experimental equipment, so that the trainers can get the due experimental operation and improve the experimental efficiency.
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Key words:
- intelligent logistics /
- cloud experiment /
- digital twins /
- virtual simulation
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算法：按钮控制移动方法 符号：按钮触发参数forward为bool类型计数器counter为int类型 1 While(1) 2 If(forward=true) 3 //计数器加一 4 counter=counter+1 5 //物体移动 6 transform.Translate(Vector3.forward* speed *Time.deltaTime) 7 //计数器达到指定值 8 If(counter<200) 9 forward=false 10 //计数器归零 11 counter=0 12 end 13 end 14 End 
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表 1 设备实际动作和模型虚拟动作对比
实际动作 耗时/s 虚拟动作 耗时/s 天车抓取 30.6 天车抓取 31 箱子入库 45.1 箱子入库 46.8 箱子出库 45 箱子出库 46 物料输送 13.5 物料输送 13.6
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