Abstract-This paper presents real-time scheduler in operating system running on ARM Cortex (M0, M3, M4) usable in small mobile robotics with kernel response around 1ms. Thanks to the strong modularity, advanced sleep modes and event driven programming ability, it can be used for WSN applications too.
Abstract-Global warming is big issue of this time. It is caused by producing emissions, mainly carbon dioxide. Many organizations tries to establish restrictions to limit CO 2 emissions. Our aim is to monitor underground parking lots and detect level of carbon dioxide using wireless sensor network. Gained results are drawn in the map of pollution of monitored area.
Abstract-In this paper, we propose voltage converter with high efficiency over wide input voltage. This converter is suitable for the solar panel for WSN applications where the only power source is a solar cell that outputs highly variable voltage. The aim is to achieve this by using multiple converter topologies in parallel. Use of such converter has a meaning in renewable resources that in the long term operation significantly change their output voltage. The efficiency of particular topologies is estimated in simplified loss model, which is later experimentally tested.
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