Parasitic power harvesting in shoes

Kymissis, John; Kendall, Clyde Jake; Paradiso, Joseph A.; Gershenfeld, Neil

doi:10.1109/iswc.1998.729539

Cited by 472 publications

(337 citation statements)

References 6 publications

Supporting

Mentioning

328

Contrasting

Unclassified

Order By: Relevance

“…A subsequent device has been developed at the Massachusetts Institution of Technology (MIT) in the 1990s [44]. Researchers first mounted an 8 layer stack of PVDF laminated with electrodes either side of a 2 mm thick plastic sheet (see figure 4).…”

Section: Human Powered Piezoelectric Generationmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,550

1,440

View full text Add to dashboard Cite

This paper reviews the state-of-the art in vibration energy harvesting for wireless, self-powered microsystems. Vibration-powered generators are typically, although not exclusively, inertial spring and mass systems. The characteristic equations for inertial-based generators are presented, along with the specific damping equations that relate to the three main transduction mechanisms employed to extract energy from the system. These transduction mechanisms are: piezoelectric, electromagnetic and electrostatic. Piezoelectric generators employ active materials that generate a charge when mechanically stressed. A comprehensive review of existing piezoelectric generators is presented, including impact coupled, resonant and human-based devices. Electromagnetic generators employ electromagnetic induction arising from the relative motion between a magnetic flux gradient and a conductor. Electromagnetic generators presented in the literature are reviewed including large scale discrete devices and wafer-scale integrated versions. Electrostatic generators utilize the relative movement between electrically isolated charged capacitor plates to generate energy. The work done against the electrostatic force between the plates provides the harvested energy. Electrostatic-based generators are reviewed under the classifications of in-plane overlap varying, in-plane gap closing and out-of-plane gap closing; the Coulomb force parametric generator and electret-based generators are also covered. The coupling factor of each transduction mechanism is discussed and all the devices presented in the literature are summarized in tables classified by transduction type; conclusions are drawn as to the suitability of the various techniques.

show abstract

Section: Human Powered Piezoelectric Generationmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,550

1,440

View full text Add to dashboard Cite

show abstract

“…Scavenging the power of the human gait could produce up to a few Watts [38], but scavenging too much energy would result in a disturbance for the user. The first research focused on shoes, producing up to 230 mW [15]. Piezoelectric scavengers implemented in pavements and roads are another option.…”

Section: Mechanicalmentioning

confidence: 99%

Towards Autonomous Energy-Wise RObjects

Vaussard

Bonani

Rétornaz

et al. 2011

Towards Autonomous Robotic Systems

View full text Add to dashboard Cite

Abstract. In this article, the RObject concept is first introduced. This is followed by a survey of applicable energy scavenging technologies. Energy is a key issue for the large scale deployment of robotics in daily life, as recharging the batteries places a considerable burden on the end-user and is a waste of energy which has an overall negative impact on the limited resources of our planet. We show how the energy obtained from light, water flow, and human work, could be promising sources of energy for powering low-duty devices. To assess the feasibility of powering future RObjects with technologies, tests were conducted on commonly available robotic vacuum cleaners. These tests established an upper-bound on the power requirements for RObjects. Finally, based on these results, the feasibility of powering RObjects using scavenged energy is discussed.

show abstract

“…Mechanical energy may be stored in springs, moving masses or in fluid flow or a fluid pressure vessel. Kymissis et al [87] demonstrated a system composed of gears, a spring and flywheel used to drive a generator which was able to produce an average of 250 mW from a 3 cm deflection of the heel during normal walking. It was noted that this device was obtrusive for the user.…”

Section: Electromagnetic Conversionmentioning

confidence: 99%

“…A mechanism developed by the author, based on mechanical analogues of electrical switched mode power supplies [87] , has been used as an energy harvesting shoe heel insert. In this device, energy supplied during compression is stored in a spring, and when the heel lifts off the stored, energy is transferred through a set of gears and a freewheel device to a flywheel and generator.…”

Section: Electromagnetic Conversionmentioning

confidence: 99%

Comparison of energy harvesting systems for wireless sensor networks

Gilbert

Balouchi

2008

Int. J. Autom. Comput.

275

132

View full text Add to dashboard Cite

Wireless sensor networks (WSNs) offer an attractive solution to many environmental, security, and process monitoring problems. However, one barrier to their fuller adoption is the need to supply electrical power over extended periods of time without the need for dedicated wiring. Energy harvesting provides a potential solution to this problem in many applications. This paper reviews the characteristics and energy requirements of typical sensor network nodes, assesses a range of potential ambient energy sources, and outlines the characteristics of a wide range of energy conversion devices. It then proposes a method to compare these diverse sources and conversion mechanisms in terms of their normalised power density.

show abstract

Parasitic power harvesting in shoes

Cited by 472 publications

References 6 publications

Energy harvesting vibration sources for microsystems applications

Energy harvesting vibration sources for microsystems applications

Towards Autonomous Energy-Wise RObjects

Comparison of energy harvesting systems for wireless sensor networks

Contact Info

Product

Resources

About