Time-predictable resource sharing for commercial-off-the-shelf embedded architectures

嵌入式系统正在从逻辑应用程序和子系统在不同硬件组件上实现的联合体系结构向使用广泛共享CPU时间、内存和电源等物理资源的日益集成的平台转变。此外，它们越来越多地使用商用现成(COTS)组件来制造，以试图提高性能并降低成本和上市时间。然而，将COTS集成到医疗、航空电子和汽车行业等安全关键系统中是具有挑战性的。这些系统需要严格的定时保证和子系统之间的隔离，以安全地与环境交互，但COT在设计时通常没有考虑到这些目标。

Embedded systems are moving from federated architectures, where logical applications and subsystems are implemented on different hardware components, to progressively more integrated platforms which use extensive sharing of physical resources such as CPU time, memories, and power. Furthermore, they are increasingly built using Commercial-Off-The-Shelf (COTS) components in an attempt to increase performance and reduce cost and time to market. However, integrating COTS in safety-critical systems such as those in the medical, avionics and automotive industry is challenging. These systems require strict timing guarantees and isolation between subsystems to safely interact with the environment, but COTS are not typically designed with such objectives in mind.