The application areas of Unmanned Aircraft Systems (UAS) are vast. The ever-increasing deployment of UAS is pushed further by advancements and cost effectiveness. It is not uncommon to come across makeshift UAS composed of off-the-shelf components that can be purchased from electronics stores. These components/systems are so easy to obtain and assemble to make homemade UAS, which then can be used by anyone for any purpose seen fit. This paper introduces the first of a set of privacy preserving measures and techniques for UAS applications. The system conceptual design will have a few versions, which the authors will apply in different setting in the subsequent research activities. For the sake of presenting the UAS Visual Privacy Guard system, the authors will use news reporting as an application.

The real drawback of the concept of electrical generator sets (EGS) with variable speed is the enginegenerator dynamics at sudden load change from low to high. The analysis of dynamic behavior presented in this paper proves that the disadvantageous dynamical properties of EGS concepts with variable speed of engine can be improved by using an energy storage element. This paper give results of design of the bi-directional dc-dc converters for energy buffer with supercapacitors and also demonstrates the results of dynamic behavior EGS with energy buffer.

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