ITR/SY: A Distributed Programming Infrastructure for Integrating Smart Sensors

ITR/SY：用于集成智能传感器的分布式编程基础设施

• 批准号: 0121638
• 负责人: Umakishore Ramachandran
• 金额: --
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0121638&HistoricalAwards=false
• 关键词: ITR; SY; Distributed; Programming; Infrastructure

Real-time, reactive and embedded systems are widely and increasingly used throughout society (e.g., flight control, railway signaling, vehicle management systems, medical devices). This trend is likely to continue, as applications that would have been unthinkable only a few short years ago come into the reach of ever more complex processors. Many such applications are long lived, interact with their environment continuously, and are under important real-time constraints. As these reactive systems permeate our lives, bringing us everything from intelligent pace-makers to tiny freshness-tracking devices in groceries, the need for cost-effective, confidence-inspiring software validation techniques grows proportionately. This project focuses on building new tools for checking a common class of reactive real-time systems known as interrupt-driven systems. The proposed research has four facets that complement and support each other. First, this effort will build on preliminary work in analyzing seven commercial microcontrollers to identify a static timing analysis that is sufficiently precise for a single interrupt handler. Second, ways to specify and check timing properties for multiple interrupt handlers will be investigated. Third, a typed assembly language will be designed with time bounds in which timing properties can be specified in a modular way, one handler at a time. Fourth, a timed interrupt-handler calculus will be designed that will embody the results in a language-independent way and make it tractable to prove key properties. The new tools will automatically derive a model of the software by static analysis and type checking, and submit the result to a model checker. The tools can lead to significantly reduced testing requirements, and provide support for maintenance throughout the system life-cycle.

实时、反应式和嵌入式系统在整个社会中得到越来越广泛的应用（例如，飞行控制、铁路信号、车辆管理系统、医疗设备）。 这种趋势可能会持续下去，因为几年前还无法想象的应用程序已经进入了更加复杂的处理器的范围。 许多此类应用程序的生命周期很长，与环境持续交互，并且受到重要的实时约束。 随着这些反应系统渗透到我们的生活中，给我们带来从智能起搏器到食品杂货中的微型新鲜度跟踪设备的一切，对具有成本效益、令人信心十足的软件验证技术的需求也相应增长。该项目的重点是构建新工具来检查一类常见的反应式实时系统（称为中断驱动系统）。 拟议的研究有四个方面，相互补充和支持。首先，这项工作将建立在分析七个商用微控制器的初步工作的基础上，以确定对于单个中断处理程序来说足够精确的静态时序分析。其次，将研究指定和检查多个中断处理程序的时序属性的方法。第三，将设计一种具有时间限制的类型化汇编语言，其中可以以模块化方式指定定时属性，一次一个处理程序。第四，将设计定时中断处理程序演算，以独立于语言的方式体现结果，并使其易于证明关键属性。 新工具将通过静态分析和类型检查自动导出软件模型，并将结果提交给模型检查器。 这些工具可以显着降低测试要求，并为整个系统生命周期的维护提供支持。