autonomy

The positive benefits of decentralized decisionmaking structures in production systems were already discussed in the 1990s. But it is only in recent years that the technologies required for implementation have reached sufficient market maturity to be able to implement corresponding concepts efficiently. In this way, the units involved can be enabled to participate “intelligently” in processes by means of autonomous technologies. The question of the actors actively involved in decentralised decisionmaking and implementation as well as the concrete design of decentralised production structures is of great importance. This article illustrates the importance of autonomy for decentralised production control and shows which performance actors involved in the process have the necessary capabilities to act autonomously.

So-called chaotic storages get increasingly important in commercial use. Their high dynamics and resulting uncertainty about storage levels result in high requirements on logistic processes. The project presented in this paper combines methods to meet these requirements by the use of an autonomous stocktaking robot. It uses approaches from the field of cognitive inspired Artificial Intelligence, enabling the robot to act purposefully in an unknown environment. Even if the environment is constantly changing, the robot is able to acquire robust information about the current state of e.g., storage areas, their position and goods stored in them. The information gathered is of coarse granularity but is still be a valuable basis for the analysis and optimisation of intra-logistic pro-cesses.

This paper focuses on the application of a bee-like autonomous control method to a matrix-like shop floor model with setup times.Apparently present planning and control systems are unable to cope with the new needs for flexiblity and process reliability resulting from dynamics and complexity in the environment. Autonomous control means de-centralized coordination of intelligent logistic objects in a dynamically changing environment. By the aid of a continuous flow simulation the system’s performance will be analyzed in regard to the application effect on throughput times and inventory levels.

The new Collaborative Research Centre “Autonomous Cooperating Logistic Processes: A Paradigm Shift and its Limitations”, funded by the German Research Foundation, started on January 1st, 2004 at the University of Bremen. The objective of the new Collaborative Research Centre is systematic and broad investigation and application of “autonomy” as a new paradigm for logistic processes. For this, appropriate concepts and models as well as methods and tools are being researched and developed in twelve scientific sub-projects. In a later phase of the Collaborative Research Centre, the results of this research will be transferred into real logistic applications.