Destructive near-earthquake early warning system and method

Abstract

The invention relates to an earthquake monitoring and feedback system and a method, and particularly relates to a destructive near-earthquake early warning system and a method. The destructive near-earthquake early warning system comprises a sensing module, an earthquake waveform acquisition and early warning module, and an early warning information terminal, wherein the sensing module comprises multiple sensor groups arranged around a protected area; each sensor group comprises multiple single-point sensors; the earthquake waveform acquisition and early warning module comprises a signal amplification unit connected with the sensor group; the signal amplification unit is connected with an intensity and phase identification unit; the intensity and phase identification unit is connected with a voltage comparison unit and a central processing unit; and the central processing unit is connected with an intensity grade estimation unit and an early warning signal sending unit. The method comprises steps of earthquake sensing, waveform recognizing and alarm giving and the like. The destructive near-earthquake early warning system realizes effective and rapid early warning of 20-100 Km near earthquakes, can emit early warning with 4-15 seconds in advance, and can realize measurement, calculation and display of arrival time, epicentre orientations and an intensity grade of earthquake transverse waves.

Description

technical field [0001] The invention relates to an earthquake monitoring and feedback system and method, in particular to a destructive near-earthquake rapid response triggering system and method. Background technique [0002] Earthquake is one of the natural disasters that bring great destructive power to people's life and property safety. In recent years, the world is in a period of high incidence of earthquakes. Earthquake monitoring and early warning have become an important method and means to reduce earthquake disasters and protect human life and property safety. One of them, using the principle that the propagation speed of seismic waves is much lower than the propagation speed of electrical signals, for a strong earthquake that is a certain distance (generally about 100Km) away from the protected town, a remote warning is issued ten seconds before the arrival of the seismic wave The method of early warning is the method commonly used in the current earthquake early w...

AI Technical Summary

Problems solved by technology

Due to the limitations of the sensor and its layout and the defect that the existing earthquake positioning system needs a certain period of time to process events, this system has almost zero effect on the early warning of destructive earthquakes near the protected area (especially within 40Km). That is to say, the destructive near-earthquake becomes the blind spot of this kind of early warning system. When the earthquake comes, it is often impossible to give early warning in time, and it is impossible to win a certain amount of time for escape and mitigation of secondary disasters.

Images