Hitachi Introduces Elevator with Earthquake Control Operation System.Tokyo, Japan, Jan 25, 2007 - (JCN JCN Japan Corporate News JCN Journal of Cognitive Neuroscience JCN Journal of Cardiovascular Nursing JCN Journal of Christian Nursing JCN Job Control Number JCN Journal of Child Neurology JCN joint communications network (US DoD) ) - Hitachi, Ltd. announced the release of a new elevator elevator, in machinery elevator, in machinery, device for transporting people or goods from one level to another. The term is applied to the enclosed structures as well as the open platforms used to provide vertical transportation in buildings, large ships, control system with earthquake detection built- in. This sensor detects long-period seismic waves seismic wave Vibration generated by an earthquake, explosion, or similar phenomenon and propagated within the Earth or along its surface. Earthquakes generate two principal types of waves: body waves, which travel within the Earth, and surface waves, which travel along the and responds by stopping the elevator safely. Compared with conventional elevators the new system can control the oscillation Oscillation Any effect that varies in a back-and-forth or reciprocating manner. Examples of oscillation include the variations of pressure in a sound wave and the fluctuations in a mathematical function whose value repeatedly alternates above and below some of long ropes, which are attached to elevators, for increased safety and convenience. The long-period sensors, which are installed in the machine room, can detect the strength of an earthquake and they take into account the numerical value of the building's earthquake period, which is registered beforehand, to estimate the swaying sway v. swayed, sway·ing, sways v.intr. 1. To swing back and forth or to and fro. See Synonyms at swing. 2. of ropes from its initial swaying stage to its resolution in real-time. If the amount of the rope swaying is small, the elevators will continue again to operate. However, if it is large then the elevators might stop. The lifts will start up after the ropes reduce their swing arcs. Hitachi's elevator earthquake control operation system will be available in the beginning of February 2007. Copyright [c] 2007 Japan Corporate News Network. All rights reserved. |
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