Measurement procedure based on spectrally resolved light and photogrammetric methods for dynamic 6D coordinate measurements in large volumes (Lambda-GPS)
Measurement procedure based on spectrally resolved light and photogrammetric methods for dynamic 6D coordinate measurements in large volumes (Lambda-GPS)
批准号:
322750896
负责人:
Professor Dr.-Ing. Robert Schmitt
金额:
$0.0万
依托单位国家:
德国
项目类别:
Research Grants
财政年份:
2016
资助国家:
德国
项目状态:
已结题
起止时间:
2015-12-31 至 2019-12-31
中文摘要
大型部件的组装,例如飞机、铁路或船舶工业,与较小尺寸部件的组装有很大不同。特别是由于其尺寸和连接属性(例如重量,刚度),组件的处理具有挑战性。较新的发展目标是大型部件的灵活和自动化组装。静态设备将被处理系统的组合所取代,例如协作机器人和外部测量系统。挑战在于处理系统的同步,这需要知道末端执行器在参考系统中的绝对位姿。外部测量系统的测量不确定度比集成在机器人中的测量系统低得多,可以测量机器人的绝对姿态,从而提高机器人的绝对精度。测量系统的要求是覆盖生产线的空间,同时测量多个末端执行器的位姿,测量不确定度低,测量率高。这需要专门的计量系统。同时建立的术语大体积计量(LVM)包括一类可移动的光学测量系统,这些系统是专门为适应大型部件(bbb1m3)的制造和装配要求而开发的。1 .研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:1、研究方向:目标是研究并进一步开发一种基于光谱分辨光和摄影测量方法的成本效益测量程序,用于大体积的动态6D坐标测量。该测量程序和相应的测量系统能够覆盖生产线的空间,同时测量多个末端执行器的位姿,测量不确定度低,测量率高。本研究项目的目标是将测量体积增加到1m^3,将测量变化减少10倍,与初始实验相比达到80Hz的测量速率。实现目标的方法是:1)测量过程的物理建模和仿真2)测量过程以测量系统的形式实现3)系统地研究和优化测量过程和系统,特别是在考虑工作量、测量速率和不确定度的情况下。
英文摘要
The assembly of large components, e.g. from aircraft, railway or ship industry, differs significantly from the assembly of components of smaller dimensions. In particular the handling of the components is challenging due to their size and connected properties (e.g. weight, stiffness). Newer developments aim for a flexible and automated assembly of large components. Static devices will be substituted by a combination of handling systems, e.g. collaborative robots, and external measurement systems. The challenge is in the synchronization of the handling systems, which requires the knowledge of the absolute pose of the end-effector in the reference system. External measurement systems with much lower measurement uncertainty than the measurement systems integrated into the robot, enables to measure the absolute robot pose and therefore, to increase the absolute robot accuracy. The metrology system requirements are to cover the space of the production line and to measure the pose of several end-effectors at the same time with a low measurement uncertainty and a high measurement rate. This requires specialized metrology systems. The meanwhile established term Large Volume Metrology (LVM) comprises a class of mobile, optical measurement systems, which are specially developed to fit the requirements of the manufacturing and assembly of large components (>1m3). Im Rahmen des Forschungsvorhabens gilt es als Zielvorgabe, gegenüber der ersten Voruntersuchungen, das Messvolumen auf 1m3 zu vergrößern, die Messwertstreuung um den Faktor 10 zu reduzieren und eine Messrate von 80Hz (Verdopplung gegenüber iGPS) zu erreichen. The goal is to investigate and further develop a cost efficient measurement procedure based on spectrally resolved light and photogrammetric methods for dynamic 6D coordinate measurements in large volumes. This measurement procedure and the respective measurement system enable to cover the space of the production line and to measure the pose of several end-effectors at the same time with a low measurement uncertainty and a high measurement rate. The objectives of this research project are to increase the measurement volume to 1m^3, to reduce the measurement variation of a factor 10 and to reach a measurement rate of 80Hz compared to the initial experiments. The approach to achieve the objective is: 1) Physical modelling and simulation of the measurement procedure 2) Realization of the measurement procedure in form of a measurement system 3) Systematic investigation and optimization of the measurement procedure and system, in particular under consideration of working volume, measurement rate and uncertainty.
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会议论文
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