CAREER: High-Confidence Software for Embedded Aerospace Systems

这个研究项目正在开发新的工具和技术，用于设计和分析复杂的、分布式的、可重构的航空嵌入式系统的高置信度软件，并将这些方法传递给本科生和研究生、其他研究人员和工业界。直接利益问题的例子是在控制和协调多个自动空中和空间飞行器以及在空中交通管制中发现和解决冲突方面出现的问题。本项目开发的技术也适用于其他需要类似可靠性和性能水平的系统，如高速公路交通自动化系统、医疗保健系统、电力网络和金融服务。本项目特别感兴趣的是更好地理解实时软件和动态系统之间的相互作用。这将为嵌入式系统的设计和分析带来新的强大的工具和技术，并改进实时系统的需求规范。研究项目的主要核心是通过在建模工作中利用底层物理系统的几何结构，并通过在控制律和算法的设计中保留这种结构，来显著降低嵌入式和混合系统设计和验证的复杂性。这将使得对整个系统的分析是可行的，包括它的物理和软件组件，否则可扩展性差的技术，如抽象解释和模型检验，并将提供手段，有效地使用基于组成推理的技术。例如，车辆动力学中的群对称产生了等价的受控轨迹族：这样的集合被称为单个车辆的运动基元，以及用于车辆组的运动协调基元。机动自动机是有限数量的运动基本体的集合。换句话说，机动自动机是车辆动力学的离散模型，通过提供高水平的抽象，同时提供确保物理状态保持在某些已知边界内的不变量，大大降低了描述和控制车辆行为的复杂性。该项目的教育部分通过新课程和课程开发以及学生指导来实施。主要的教育目标是为本科生和研究生提供了解关键问题的知识和技能，并确保在当前和未来的航空航天信息技术领域处于技术领先地位。最后，特别致力于开发一个互动网站，在那里可以获取为课程开发的所有相关信息和软件，并作为研究项目的结果。

Frazzoli, EmilioCAREER: High-Confidence Software for Aerospace Embedded SystemsCCR-0133869This research project is developing new tools and techniques for the design and analysis of high-confidence software for complex, distributed, reconfigurable aerospace embedded systems, and to transfer these methods to undergraduate and graduate students, other researchers, and industry. Examples of problems of direct interest are those arising in the control and coordination of multiple autonomous air and space vehicles, and in the detection and resolution of conflicts in Air Traffic Control. The techniques developed in this project are also applicable to other systems which require similar levels of reliability and performance, such as highway traffic automation systems, health care systems, power networks, and financial services.Of particular interest for this project is a better understanding of the interactions between real-time software and dynamical systems. This will lead to new and powerful tools and techniques for the design and analysis of embedded systems, as well as an improved approach to the requirement specification for real-time systems.The main core of the research project is aimed at dramatically reducing the complexity of embedded and hybrid systems design and verification by exploiting the geometric structure of the underlying physical system in the modelling effort, and by preserving this structure in the design of control laws and algorithms. This will make feasible for the analysis of the complete system, including its physical and software components, otherwise poorly scalable techniques such as abstract interpretation and model checking, and will provide the means for the effective use of techniques based on compositionalreasoning.For example, group symmetries in vehicle dynamics give rise to families of equivalent controlled trajectories: such sets are called motion primitives for single vehicles, and motion coordination primitives for groups of vehicles. A maneuver automaton is a collection of a finite number of motion primitives. In other words, a maneuver automaton is a discrete model of the vehicle dynamics, which leads to a dramatic reduction of the complexity of describing and controlling the vehicle behavior, by providing a high level of abstraction, and at the same time providing invariants which ensure that the physical state remains within some known bounds.The educational part of the project is implemented through new course and curriculum development, and student mentoring. The main educational objective is to provide both undergraduate and graduate students with the knowledge and the skills to understand the key issues and to ensure technical leadership in the current and future aerospace information technology arenas. Finally, a special effort is devoted to the development of an interactive web site, where it is possible to access all the relevant information and software developed for the courses, and as a result of the research project.