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Software modeling for reconfigurable machine tool controllers.

机译：可重构机床控制器的软件建模。

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Reconfiguration of hard real-time software for machine tool controllers requires an architectural framework that supports a range of potential configurations which are not specifically identifiable in advance. However, at present no such framework exists, nor is there a well-established process to design it. This research investigates an incremental, iterative process to develop a requirements specification model and a domain-specific architecture to facilitate the integration of software for hard real-time machine tool control functions. It is an early stage study in a very complex and difficult subject of long-range research. The research is performed as a series of experimental steps in which the domain model is developed incrementally and a test application is prototyped at each step to evaluate the model and discover limitations.; Performance feasibility is partially validated through multi-axis motion control tests on a machine tool. Results include a set of domain-specific heuristic principles, procedures, rules, and constraints on task interaction patterns, and a set of reusable object classes to develop a configuration of hard real-time tasks that integrate continuous process control with discrete events, e.g., intervention of a tool breakage signal to stop servo-controlled motion. Contributions in the domain modeling process include a process of generalization from a specific case, a technique to bound domain, and a technique to make it extensible.; The architecture is extensible through specialization of its component classes, through the aggregation of components into subassemblies, and through the development of progressively relaxed constraints on interaction patterns for subdomains requiring less stringent timing constraints. The model is reusable across various types of automated functions for material processing, inspection, and material handling, thus facilitating their computer integration.
机译：用于机床控制器的硬实时软件的重新配置需要一个架构框架，该架构支持一系列可能无法事先明确识别的潜在配置。但是，目前尚不存在这样的框架，也没有完善的流程来设计它。这项研究调查了一个渐进的迭代过程，以开发需求规范模型和特定领域的体系结构，以促进用于硬实时机床控制功能的软件集成。这是一个长期研究中非常复杂且困难的课题的早期研究。这项研究是通过一系列实验步骤进行的，其中逐步开发领域模型，并在每个步骤中对测试应用程序进行原型设计，以评估模型并发现局限性。通过在机床上进行多轴运动控制测试，部分验证了性能可行性。结果包括一组特定于领域的启发式原理，过程，规则和对任务交互模式的约束，以及一组可重用的对象类，以开发硬实时任务的配置，这些任务将连续过程控制与离散事件集成在一起，例如，干预刀具破损信号以停止伺服控制的运动。领域建模过程中的贡献包括：从特定情况进行概括的过程，绑定域的技术以及使其可扩展的技术。该体系结构可以通过其组件类别的专用化，通过将组件聚合为子组件以及通过对要求较少严格时序约束的子域的交互模式的逐步放松约束的开发来扩展。该模型可在物料处理，检查和物料处理的各种自动化功能中重用，从而促进其计算机集成。

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