Parasitic Power Collection in Shoe Mounted Devices
نویسنده
چکیده
Possibilities for the " parasitic " collection of power from human walking motion are explored. The focus is on the walking action as a source of power because of the extensive range of motion and large dynamic forces associated with the heel strike and the bending of the sole. Two piezoelectric systems: a multilayer laminate made from PVDF foil and a unimorph piezoceramic composite (PZT); as well as a mechanical system utilizing a shoe mounted electric generator are examined. Test results are given for prototypes of these systems and improvements and potential applications are discussed.
منابع مشابه
Energy Scavenging with Shoe-Mounted Piezoelectrics
Decreasing size and power requirements of wearable microelectronics make it possible to replace batteries with systems that capture energy from the user’s environment. Unobtrusive devices developed at the MIT Media Lab scavenge electricity from the forces exerted on a shoe during walking: a flexible piezoelectric foil stave to harness sole-bending energy and a reinforced PZT dimorph to capture ...
متن کاملEnergy harvesting from motion using rotating and gyroscopic proof masses
Energy harvesting – the extraction of energy from the local environment for conversion to electrical power – is of particular interest for low power wireless devices such as body or machine mounted sensors. Motion and vibration are a potential energy source, and can be exploited by inertial devices, which derive electrical power by the damping of the relative movement of a proof mass mounted in...
متن کاملShoe-mounted vibration energy harvester of PZT piezoelectric thin films on metal foils
This paper describes shoe-mounted piezoelectric vibration energy harvesters (PVEHs). The PVEHs were fabricated from Pb(ZrTi)O3 (PZT) thin films which were directly deposited onto Pt/Ti-coated stainless steel foil by rf-magnetron sputtering. We experimentally and theoretically evaluated impulse responses of the PVEHs by applying a simple impulse input on the energy harvesters, typical damped fre...
متن کاملEffectiveness of Joint Stiffness and Power Alternations in Different Shoe Insole Hardness on Injury Prevention During Jump-Landing
Background: Studies on how the shoe insole hardness regulate joint stiffness and transfer energy in the lower extremity during jump landing are scarce. The current study aimed to determine the effectiveness of shoe insole changes in joint power and stiffness during landing from jumps. Methods: Fifteen healthy male athletes volunteered to perform jump-landing in various shoe insole conditions. ...
متن کاملParasitic Power Harvesting in Shoes
system to date has served all of the needs of wearable computing—light weight, minimum effort, high power generation, convenient power delivery, and good power regulation. We believe that our approach has the potential to solve these problems for a class of wearable devices by placing both the generator and powered electronics in a location where considerable energy is easily available, namely ...
متن کامل