Showing papers on "Active object published in 2015"
17 Dec 2015
TL;DR: This paper chooses six known concurrency patterns - Future, Periodic timer, Invoke later, Active object, Cooperative cancellation, and Guarded suspension - and demonstrates how these patterns could be used for solving common robotic coordination tasks.
Abstract: Software design patterns are reusable solutions to commonly occurring problems in software development. Growing complexity of robotics software increases the importance of applying proper software engineering principles and methods such as design patterns to robotics. Concurrency design patterns are particularly interesting to robotics because robots often have many components that can operate in parallel. However, there has not yet been any established set of reusable concurrency design patterns for robotics. For this purpose, we choose six known concurrency patterns - Future, Periodic timer, Invoke later, Active object, Cooperative cancellation, and Guarded suspension. We demonstrate how these patterns could be used for solving common robotic coordination tasks. We also discuss advantages and disadvantages of the patterns and how existing robotics programming frameworks can support them.
4 citations
Patent•
IBM1
TL;DR: In this article, a hierarchical tree representation of the spatial area may be generated, wherein a child node represents a sub-region of a region represented by a parent node of the child node.
Abstract: Dispatching messages in a moving object, in one aspect, may include receiving a description of a spatial area. A hierarchical tree representation of the spatial area may be generated. The hierarchical tree representation may comprise nodes, wherein a child node represents a sub-region of a region represented by a parent node of the child node. Moving features may be associated with each of the nodes, the moving features comprising whether the node is cacheable, whether the node covers an unpartitioned area, an active object list in an area covered by the node, and a latest position associated with an object in the active object list. Data from the moving object may be dispatched based on the hierarchical tree representation.
TL;DR: Experimental results show that this new kind of spectrum optimization approach can overcome the problem of object lost in the process of object moving with variable structure, and achieve better tracking results than soft feature method as before.