Mixed-criticality systems, where multiple systems with varying criticality-levels share a single hardware platform, require isolation between tasks with different criticality-levels. Isolation can be achieved with software-based solutions or can be enforced by a hardware level partitioning. An asymmetric multiprocessor architecture offers hardware-based isolation at the cost of underutilized hardware resources, and the inter-core communication mechanism is often a single point of failure in such architectures. In contrast, a partitioned uniprocessor offers efficient resource utilization at the cost of limited scalability. We propose a partitioned real-time asymmetric architecture (PaRTAA) specifically designed for mixed-criticality airborne systems, featuring robust partitioning within processing elements for establishing isolation between tasks with varying criticality. The granularity in the processing element offers efficient resource utilization where inter-dependent tasks share the same processing element for sequential execution while preserving isolation, and independent tasks simultaneously execute on different processing elements as per system requirements.

Real-time embedded platforms with resource constraints can take the benefits of mixed-criticality system where applications with different criticality-level share computational resources, with isolation in the temporal and spatial domain. A conventional software-based isolation mechanism adds additional overhead and requires certification with the highest level of criticality present in the system, which is often an expensive process. In this article, we present a different approach where the required isolation is established at the hardware-level by featuring partitions within the processor. A four-stage pipelined soft-processor with replicated resources in the data-path is introduced to establish isolation and avert interference between the partitions. A cycle-accurate scheduling mechanism is implemented in the hardware for hard-real-time partition scheduling that can accommodate different periodicity and execution time for each partition as per user needs, while preserving time-predictability at the individual application level. Applications running within a partition has no sense of the virtualization and can execute either on a host-software or directly on the hardware. The proposed architecture is implemented on FPGA thread and demonstrated with an avionics use case.

Feasibility of underground data communications by employing magnetic induction is investigated. Realizing an underground wireless sensor network for a district heating plant motivates this research challenge. The main contribution of the paper is finding the optimal designs for coil antennas at the transmitter and receiver sides of a magneto-inductive communication system.

In this paper we present a flexible environment for development of climate control systems, especially aimed for livestock building facilities. Matlab/SimuLink as a de facto standard is used as development environment and is integrated with a remote monitoring and control system, allowing users to act as human in the loop controllers. For demonstration of technology maturity the entire system is developed using commercial off-the-shelf (COTS) technologies namely: PC architecture, Linux, Matlab/Simulink/RTW, MySql, Apache and ssh. The presented system is considered as prestudy/case for a future industrial solution.