Energy harvesting uses energy from the environment like heat, light or motion to supply small electronic devices. Energy-autonomous, maintenance-free and wireless systems with maximum uptime and unlimited standby time are thus possible. It also enables the power supply of devices at remote locations. Areas of application are, for example, sensor networks for monitoring of machines and plants (Condition Monitoring), tracking systems or sensors for building automation.
At embedded world we will, among others, demonstrate the Bluetooth Low Energy sensor BlueTEG with thermoelectric energy supply. BlueTEG measures sensor readings such as the ambient temperature or acceleration rates and transmits this data via Bluetooth to a smartphone or tablet PC. Integrated in a compact housing, BlueTEG uses the temperature difference between the warm or cold objects and the environment to produce electrical energy to supply the electronic systems.
BlueTEG does not require a battery and can be used in all areas of structure monitoring, automation or wearable sensors systems. Especially in service areas, important environmental data such as temperature, air conditions, hazardous gases, etc. can be easily determined and transmitted via Bluetooth. The energy required for this is gained by our BlueTEG due to the temperature difference between heating or water pipes and ambient temperature. Lowest temperature differences are sufficient for smooth detection and transmission.
Condition monitoring is a process that is used in production and manufacturing plants and that enables to monitor and analyze machine conditions permanently. The Energy Harvesting technologies from Fraunhofer IIS can autonomously supply sensors for detecting abrasion or damage to machines. Especially in hard-to-reach places or with frequent acquisitions of data, our BlueTEG offers enormous advantages over conventional power supplies with batteries. With permanent condition monitoring, you can extend the lifespan and life of your equipment and avoid costly production downtime. By using a self-sufficient energy source, you can achieve this without major installation and maintenance efforts.
See at the Fraunhofer booth (Hall 4, 460) how efficiently energy can be gained from temperature differences. For further information please visit www.iis.fraunhofer.de/energyharvesting