Ricerc@Sapienza

Innovative processes, by their very definition, relate to phases of instability and transformation, characterized by the circumstances in which traditional schemes and models that belong to the cognitive endowment of the decision maker – and that can be defined as consolidated within its specific context of reference – appear ineffective, ending to be progressively not adequate, when reiterated in the attempt to be used to recover the balance of the organization.

In this paper it is shown how to obtain a low-cost, high-resolution and fault-robust position sensing system for permanent magnet synchronous motor drives operating in safety-critical systems, by combining high-frequency signal injection with binary Hall-effect sensors. It is shown that the position error signal obtained via high-frequency signal injection can be merged easily into the quantization-harmonic-decoupling vector tracking observer used to process the Hall-effect sensor signals.

Industrial control applications are today software defined and networked, making them even more vulnerable to cyber-attacks. Hence there is the need to investigate new solutions that are secure by design. In this paper, we propose a self-protecting architecture for a control application suitable for Industrial Internet-of-Things deployments. The proposed solution, by using redundancy, is capable of self-detecting cyberattacks to its logic and to autonomously activate mitigation actions.