Abstract: The present invention provides an emergency evacuation apparatus comprises: an annular floating body (1) having a hollow chamber of watertight construction, a midsection thereof having a circular or oval cross-section; a support (2) on which the annular floating body is placed; and guiding member (3) for passing through a central space in the annular floating body so that there is play therebetween and vertically guiding the annular floating body, the guiding member being secured to the support, whereby the floating body capable of accommodating people and possessions floats during a flood or tsunami, and the floating body can return to an original installation location when the flood or tsunami ends.

Abstract: The present invention provides an evacuation notification system that can provide notification of the number of evacuees taking shelter in multiple emergency evacuation facilities or apparatus, and allows evacuation conditions to be accurately ascertained on the basis of such notifications.

Abstract: The present invention provides an emergency evacuation apparatus comprises: an annular floating body (1) having a hollow chamber of watertight construction, a midsection thereof having a circular or oval cross-section; a support (2) on which the annular floating body is placed; and guiding means (3) for passing through a central space in the annular floating body so that there is play therebetween and vertically guiding the annular floating body, the guiding means being secured to the support, whereby the floating body capable of accommodating people and possessions floats during a flood or tsunami, and the floating body can return to an original installation location when the flood or tsunami ends.

Abstract: A sphere circulating apparatus capable of extracting a falling motion energy of a plurality of spheres circulating with repeatedly falling and rising within the apparatus, in which each sphere falls in a falling chamber, dives into liquid at a second liquid surface formed at a lower end of the falling chamber and rises in a rising chamber by the buoyancy force while pushing upward-opening check valves open one after another; each sphere then rises up to a first liquid surface formed at an upper end aperture of the rising chamber and pushes another sphere at the upper end aperture out from the first liquid surface; each sphere pushed out further shifts to an upper end aperture of the falling chamber and falls in the falling chamber toward the second liquid surface.