Alarm capable of sending out multi-grade earthquake signal to periphery towns

Abstract

The invention relates to an alarm capable of automatically propagating a plurality of scales of impending earthquake signals toward external cities and towns, which is mainly composed of a pendulum spike shaft, a pendulum, a pendulum inverse proportion rod, fixed annular contacts, a circuit for propagation toward the external cities and the towns, and the like. Moreover, a plurality of groups of alarms of various scales sent out by the pendulum are set so that people can obtain various kinds of information, such as common evacuation, emergent evacuation, and the like. When the invention stands by, the alarm circuit is switched off, and when the invention is in alarm, the alarm circuit is switched on so as to generate the alarms and propagate the signals toward the outside. Because the overspreading and propagation velocity of an earthquake wave is much slower than the conduction velocity of electricity, if the automatic propagation alarm can be mounted in all the cities and the towns nationwide, when an earthquake centered on a city or town occurs, the impending earthquake signals are rapidly propagated to the cities, towns and rural areas in eight directions so that people at a far distance can have enough time to evacuate, and casualties caused by the earthquake can be relevantly decreased.

Description

1. Technical field [0001] The invention relates to an alarm that can automatically transmit multiple levels of imminent earthquake signals to peripheral cities and towns. It uses the vibration of an inverse ratio rod on a pendulum to collide with a ring-shaped contact fixed around it as an alarm reference, and belongs to the vibration trigger circuit closed type. The technology of automatic spread and dissemination of imminent earthquake alarm signal. Especially it can detect multiple different levels of imminent earthquake alarms to send alarms locally and spread to peripheral towns, and can not automatically spread destructive imminent earthquake alarm signals to peripheral towns farther away. 2. Background technology [0002] Up to now, although there are many types and advanced instruments used for earthquake prediction and monitoring, people lack knowledge and skills on the causes of earthquakes and the selection of monitoring locations, making it difficult to make accu...

AI Technical Summary

Problems solved by technology

[0002] Up to now, although there are many types and advanced instruments used for earthquake prediction and monitoring, people lack knowledge and skills on the causes of earthquakes and the selection of monitoring locations, making it difficult to make accurate predictions before the arrival of major earthquakes. When a big earthquake comes, everyone can only rely on fate to decide. The 80,000 people killed in the Wenchuan earthquake is a tragic example, so that people desperately hope that this situation can be improved

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