一种数字孪生背景下的组合秤仿真技术  

A simulation technology of combination weighers on Digital Twin

作　　者：孙国锋 丁金华[1] Sun Guofeng;Ding Jinhua(School of Mechanical Engineering,Dalian Polytechnic University,Dalian 116000,China)

机构地区：[1]大连工业大学机械工程学院,大连116000

出　　处：《电子测量技术》2021年第12期144-148,共5页Electronic Measurement Technology

摘　　要：为满足数字孪生(Digital Twin)要求下的组合秤仿真实时性,提出了一种以中间转换板为桥梁的通讯与仿真方式。在该方式中,组合秤控制信号由控制板发出,被中间转换板捕捉到,然后在转换板中将信号转换后发送给上位机。上位机Unity3D平台上构建的组合秤模型识别转换板发来的数据,并由此对真实的组合秤进行运动仿真。为准确获取控制信号,在转换板上利用中断对信号进行捕捉,之后将信号变为固定格式的数据通过以太网发送给上位机。为仿真组合秤运动,利用Unity3D中Physics系列组件保证运动准确。最后对比分析了组合秤仿真过程中的传输速度。此外,该仿真方式也可用于高频脉冲驱动的机器人、组合机床等机械的仿真,以实现数字孪生。A communication and simulation method with an intermediate conversion board as a bridge is proposed to meet the real-time performance and accuracy of the combination weigher simulation in Digital Twin. At first, the control signal of the machinery was sent out by the control board and captured by the intermediate conversion board and then the signal in it was converted and sent to the upper computer. Finally, the model of combination weigher built on the Unity3 D in the host computer recognized the data from the conversion board, and thus performed motion simulation of the real machine. To obtain the control signal accurately, the signal was captured by the interrupt on the conversion board, and converted as a fixed format to the upper computer through the Ethernet. To simulate the movement of the combination weigher, the Physics component in Unity3 D is used to ensure accurate movement. Finally, the transmission speed in the simulation process of the combination weigher was compared and analyzed. In addition, this method can also be used to simulate high-frequency pulse-driven robots, modular machine tools and other machinery.

关 键 词：数字孪生 组合秤 仿真 UNITY3D Physics组件 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]