Mayer, DirkDirkMayerJancke, RolandRolandJancke2022-03-152022-03-152021https://publica.fraunhofer.de/handle/publica/414239How model-based systems engineering can help minimize the growing amount of energy consumed by IoT devices: The Internet of Things (IoT) is growing rapidly all around the world. New devices are continually being added, all collecting a variety of data and transmitting them (often wirelessly) to edge devices, which in turn relay the data to the cloud for further processing. It is estimated that in a few years IoT devices will be responsible for over 20% of global energy consumption. Minimizing the energy use of IoT devices must therefore be recognized as a clear objective for climate protection. The energy consumption of each individual IoT node is also a limiting factor on the useful life of the device. When devices are used in hard-to-reach locations and cannot be wired up, minimizing energy consumption is essential to prolonging the service intervals. Energy use must therefore be considered in the early development of a new device. Important architecture decisions are made already during the concept phase, which must take power consumption into account as a design parameter. For example, when defining the energy supply concept, designers must choose whether the energy will come from a rechargeable battery, a long-life disposable battery or energy harvesting. It is necessary to consider both the static, integral energy demand, as well as the dynamic demand based on the specific usage scenario.en621004blog post