fail-operational fail-safe

“Fail-operational fail-safe”是指在某种系统中，当某些组件出现故障时，该系统仍然能够正常运行且保持安全。其涉及到两种模式：fail-operational模式和fail-safe模式。

在fail-operational模式下，无论某些组件发生故障，系统仍然能够持续工作。这种模式主要应用于对于安全性和连续性要求极高的场合，例如飞机。在飞行过程中，飞机必须具备不中断运行、更换备件等条件，确保乘客安全。因此，当某些组件出现故障时，飞机仍然能够在其它备用系统的支持下正常运转，维持空中飞行。

而在fail-safe模式下，当某些组件发生故障时，系统会自动采取安全措施来保护用户。这种模式主要应用于汽车、电子设备等行业。比如，在电子设备中，如果系统发现某个组件出现故障，可以通过关闭这个组件来保证整个设备的安全性。

总的来说，“Fail-operational fail-safe”是一种综合性的系统解决方案，它能够在系统出现故障时，依然能够进行工作，并且能够保证人们的生命安全和财产安全。

相关问题

RTCADO-283

RTCADO-283是美国军方发布的一个标准，全称为"Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment"。这个标准规定了飞机上使用的全球定位系统（GPS）和广域增强系统（WAAS）设备的最低操作性能要求。RTCADO-283旨在确保飞机上的GPS/WAAS设备能够提供准确、可靠的位置信息，以支持飞行导航和监控。

C-MAPSS dataset

The C-MAPSS dataset (Commercial Modular Aero-Propulsion System Simulation) is a widely used benchmark dataset for prognostics and health management (PHM) research in the field of aviation. It was originally developed by NASA to support research in the areas of fault diagnosis, prognostics, and remaining useful life (RUL) estimation for aircraft engines.

The dataset contains sensor measurements and operational data from a fleet of commercial turbofan engines, which were operated under different conditions and subjected to various types of faults and failures. The dataset includes four different sub-datasets, each representing a different engine model and covering different levels of fault severity.

The C-MAPSS dataset has been widely used by researchers and practitioners to develop and evaluate various PHM techniques, including data-driven and model-based approaches for fault detection, diagnosis, and RUL estimation. It has also been used to compare the performance of different PHM methods and to benchmark different algorithms and techniques in the field.

Overall, the C-MAPSS dataset has played a critical role in advancing the state of the art in PHM research for aircraft engines and has contributed to improving the safety, reliability, and efficiency of commercial aviation.