ALTEN Global Technologies WHITEPAPERS
OASYS - 653 (ARINC-653 Compliance, In-House RTOS)
Posted by: ALTEN Global Systems Team | 13 June, 2024
Embedded systems for safety critical applications often integrate multiple functions and must generally be fault tolerant. In hard real-time applications, it must be guaranteed by design that all real-time transactions will produce the correct result and meet their deadlines. These requirements lead to a need for mechanisms and services that provide protection against fault propagation and ease the construction of distributed fault tolerant applications. A key feature of an avionics RTOS is its ability to meet tight processing deadlines. An application program controlling the release of a weapon may require an action from the operating system in less than onethousandth of a second. The avionics computer resource is an embedded generic computing platform that is able to host multiple applications with different levels of criticality. Safety- critical applications such as flight control, cockpit display, navigation, radar control etc., run on an avionics computer resource. These applications need strong assurance from the operating system that their hard real-time requirements are met. More importantly, they require the assurance that in the presence of faults, a fault in one application should not propagate to the others...Read More
Functional Safety Software Standards Comparision
Posted by: Appala Naidu Bandaru | 6 Dec, 2022
Functional safety is very important for the safety critical systems in any domain. The main objective of the functional safety is to reduce unacceptable hazards’ risk probability to acceptable levels. The standard guidelines based on past failures and fixes helps in not repeating the already identified problems. Each domain such as Aerospace, Automotive have come up with the Functional safety standards based on the domain’s core functionality and associated safety context. This document aims to provide comparison between different Software Functional safety standards from Avionics, Automotive and Medical electronics domain.....Read More
Software Design FMEA for Functional Safety Systems
Posted by: Appala Naidu Bandaru | 6 Feb, 2020
Functional safety is important for safety critical applications in any industry where active monitoring is required on safety critical operations. The active monitors either prevents or mitigates the failure that causes safety goal violations of the system. The failures are categorised as Systematic failures and Random hardware failures....Read More
EMBEDDED SYSTEM SECURITY
Posted by: Gopu | 10 Mar, 2021
World is moving towards the age of fully autonomous environment where things need to be done faster and without much influence of human, which increases the use of embedded systems in all domains. Embedded systems are the driving force for technological development in many domains. Security has traditionally been a subject in the area of networking. However, security of embedded systems is often ignored during the design and development period of the product, thus leaving many devices vulnerable to attacks.....Read More
State of Charge and State of Health Estimation using Neural Networks
Posted by: Eashwar N N | 22 Mar, 2022
Estimation of the SoC of a battery is not an easy task. It varies based on the battery type and the type of application that is using the battery. That being said, SoC estimation is done conveniently using neural networks which not only provides accurate but faster results. It is also important to estimate the state of health (SOH) of a battery, which represents a measure of the battery's ability to store and deliver electrical energy, compared with a new battery. .....Read More