From Goals to Systems via Technical Requirements and Physical Models Design of an Intelligent Cash Handling System

In the development of intelligent mechatronic systems, a gap of tools and methodologies exists, when technical requirements meet physical behavior modeling. Consistency and pervasiveness between requirements, development and modeling is not fully achieved and more sophisticated methods are needed. In a first step, the meaning of requirements in terms of intelligent mechatronic systems is pointed out. Challenges in obtaining technical requirements are worked out. A demand for action is derived and an approach to tackle these challenges is then presented. A consistent development process is described with the help of an application example - the development of a robotic system is displayed. Particularly for multidisciplinary systems, design methodologies are needed. Complexity in those systems is on a superior level and needs to be handled effectively and efficiently. We therefore enrich a design method for intelligent mechatronic systems with a more detailed integration of physical models. Our approach starts with a given system goal. It is shown how to derive technical requirements of the system. A simulation model is worked out systematically via the combination of physical modeling and the utilization of partial models. A possibility to gather the gained information is shown at the end with the help of a N3 chart. The N3 chart is easily modifiable and intelligible by a wide range of developers. The approach increases consistency from early development phases to technical requirements. The utilization of partial and physical models shows the potential for symbiosis. The approach is evaluated at the end.