Abstract:
The geometrically nonlinear isolation system of the present invention includes a bearing platform, an isolator and a damper. The isolator is connected with the bearing platform and used for providing resilience against horizontal relative displacement between the bearing platform and the isolator. The damper is pin-jointed to the bearing platform and has an axis orthogonal or oblique to the horizontal direction. Accordingly, when the bearing platform and the isolator move with respect to each other along the horizontal direction, the angle between the axis of the damper and the horizontal direction would change with the horizontal displacement, and the damper provides damping force along a direction parallel to the axis of the damper so as to enhance horizontal vibration isolation effect.
Abstract:
An earthquake alarm broadcasting equipment for an earthquake detecting system includes a receiver for receiving a detection result from the earthquake detecting system, wherein the detection result at least indicates a level of earthquake intensity, a memory device for storing a trigger level, a use scenario set by a user and a contingency measure corresponding to the use scenario, a processor coupled to the receiver and the memory device for generating a control signal according to the detection result, the trigger level and the contingency measures, and a functional module coupled to the processor for broadcasting an earthquake alarm and the contingency measures to the user.
Abstract:
A method of determining an earthquake event for an earthquake detecting system includes retrieving at least one initial wave characteristic related to each earthquake data among a plurality of earthquake data; utilizing a support vector classification (SVC) method to establish an earthquake determination model according to the initial wave characteristic; and determining whether new earthquake data belong to an earthquake event or a non-earthquake event according to the earthquake determination model when the new earthquake data are received.