Abstract: An energy harvesting device (100) comprises a hollow prismatic body (12) formed of a plurality of faces are coated with a piezoelectric layer thereon, a plurality of elongated cantilevers (14) are arranged spatially from each other and inserted through the faces of the hollow prismatic body (12), the elongated cantilevers (14) are coated with a piezoelectric layer thereon, and at least one inner resilient means (16) of a particular stiffness having one end attached the hollow prismatic body (12) and the other end is coupled with a base (18) in order to stabilize the device on its axis. The device (100) is capable of detecting small amounts of environmentally available vibration sources and producing huge vibration to the hollow prismatic body (12) and the cantilevers (14), thereby inducing the device (100) to generate electrical energy that can be stored or used by an exteranl load.

Abstract: An energy harvesting device (100) comprises a hollow prismatic body (12) formed of a plurality of faces are coated with a piezoelectric layer thereon, a plurality of elongated cantilevers (14) are arranged spatially from each other and inserted through the faces of the hollow prismatic body (12), the elongated cantilevers (14) are coated with a piezoelectric layer thereon, and at least one inner resilient means (16) of a particular stiffness having one end attached the hollow prismatic body (12) after determined the centre of gravity and mass of the hollow prismatic body (12) and the other end attached to a base (18) in order to be stable on its axis, wherein the device (100) is capable of detecting small amount of environmentally available vibration sources and producing huge vibration to the hollow prismatic body (12) and the cantilevers (14), thereby inducing the device (100) to generate electrical energy. The energy harvesting device (100) is capable of harvesting energy from ambient low scale vibration.

Abstract: The present invention relates to a device (500) configured to profile and control field conditions for plants grown in an environment. The device (500) is essentially comprised of at least one integrated sensor systems (10) configured to acquire data associated with the field conditions, and at least one feedback control system (20) for regulating the field conditions. The device (500) further comprises an inference unit configured for receiving and profiling the data from the integrated sensor systems (10); determining revised field conditions in accordance to the plants' requirements based on the data acquired from said integrated sensor system (10), and manipulating the feedback control system (20) in a feedback manner to regulate the field conditions in the environment into the revised state. In addition, the inference unit is in communication with the monitoring component and the controlling component via connections.