Patent ID: 7506586

Claim:
A munitions energy system for providing electrical energy to a munition, the system comprising: an energy harvesting device, the energy harvesting device generating electrical energy based on an environmental condition of the munition, wherein the energy harvesting device includes: a motion harvesting device which generates electrical energy based on a motion of the munition, a thermal harvesting device which generates electrical energy based on a thermal condition of the munition, and an electromagnetic harvesting device which generates electrical energy based on electromagnetic radiation received by the munition; an energy storage device, the energy storage device storing electrical energy generated by the energy harvesting device; and an energy management device, the energy management device managing the flow of energy among the energy harvesting device and a load, the energy harvesting device and the energy storage device, and the energy storage device and the load, wherein the energy management device manages the flow of energy in a maintenance mode and an operational mode of the munition.