Vibration energy harvesting sensor node with Bluetooth smart communication

This paper discusses vibration energy harvesting from a practical point of view. A wireless sensor node is developed that is using vibration energy harvesting combined with Bluetooth Smart communication. A 3D-acceleration sensor is implemented for a monitoring application. But also different sensor types can be used. The system is optimized for low power consumption. The measurement results can be displayed using standard smart phones. An experimental set up has been engineered to analyze the influences of vibration intensity and vibration frequency. The energy balance of both, the generating and the consuming side is investigated. The experimental results demonstrate that a combination of vibration energy harvesting with Bluetooth Smart is highly interesting for wireless sensor applications