A highly sensitive and multifunctional earthquake alarm device

Abstract

The invention discloses a high-sensitivity multifunctional earthquake alarm device, which comprises an earthquake signal sensor and an alarm circuit. The alarm circuit comprises a signal processing unit, an amplification unit, a detection and reset unit, a self-locking and maintaining unit, an acoustic alarm unit, a light alarm unit, a timing unit and a power supply unit; the seismic signal sensor is provided with a fixed substrate, on which an upper electrode support and a lower electrode support are arranged, and a conduction device and a shear wave sensing device are arranged between the upper electrode support and the lower electrode support . Experiments have proved that the present invention has the advantages of composite sampling of longitudinal and transverse waves, high sensitivity, synchronous reflection of earthquake occurrence, simultaneous sound and light alarm, strong warning, strong anti-interference ability and low alarm rate. Moreover, the cost is low, and residents' demand for purchasing is strong. The present invention can report danger immediately, respond quickly to the whole people, help to protect people's lives and property safety, and reduce losses to a minimum. Its effective implementation will definitely make positive contributions to human disaster prevention and mitigation.

Description

technical field [0001] The invention belongs to the technical field of seismic signal detection equipment, and in particular relates to a high-sensitivity multifunctional earthquake alarm device with simple structure and low manufacturing cost. Background technique [0002] The earth is one of the nine planets in the solar system, a slightly flattened rotating ellipsoid. Earth consists of crust, mantle, and core. The earth's layered structure is basically divided by the propagation speed of seismic waves (P and S). The upper layer of the earth has significant horizontal inhomogeneity: the thickness of the continental crust and the oceanic crust is very different. During an earthquake, the source radiates two kinds of seismic waves, longitudinal wave P and shear wave S. They travel around at different speeds and arrive at different locations on the ground at different times. [0003] The so-called "going to the sky is easy, but entering the earth is difficult", human being...

AI Technical Summary

Problems solved by technology

However, the alarm devices in the prior art have disadvantages such as delayed response, poor anti-interference ability, and high false alarm rate.

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