Vibration feature sensor

Abstract

The invention discloses a high-precision vibration characteristic sensor with the functions of space positioning and satellite timing service. In addition to an acceleration vibration pickup, a waveform recorder, a real-time processing chip and a protective shell, it also includes an A / D conversion circuit board, Antenna and GPS signal processing device; the A / D conversion circuit board converts the acceleration voltage signal collected by the acceleration vibration pickup into a digital signal and inputs it into a real-time processing chip. Time service, the real-time processing chip analyzes the input digital signal in real time, and makes the judgment of earthquake and site liquefaction according to the preset threshold value, and at the same time outputs the available command signal through the line. The invention has the advantages of high precision, reliable early warning and satellite positioning and timing, can be used for monitoring and warning earthquakes, and builds a regional monitoring network to monitor the whole process of earthquakes in an all-round way.

Description

Technical field: [0001] The invention relates to a vibration sensor, in particular to a vibration characteristic sensor for vibration monitoring and process analysis. Background technique: [0002] my country is one of the countries most severely affected by earthquake disasters in the world. Since 1900, the number of earthquake deaths in China has reached 550,000, accounting for 53% of the global earthquake death toll. In the 20th century, one-third of the world's continental earthquakes occurred in my country. Since 1949, more than 100 destructive earthquakes have hit 22 provinces (autonomous regions and municipalities) across the country, killing more than 270,000 people, accounting for the largest number of deaths from various disasters in the country. 54% of the population. Earthquake disasters are one of the major disasters faced by cities in our country. The mainland's 6-9 degree earthquake area accounts for 60% of the country's land area. 23 provincial capital citie...

AI Technical Summary

Problems solved by technology

[0004] Since the signals detected and processed by the above-mentioned SI sensors are all analog quantities, the accuracy is not high, and false alarms often occur due to the influence of other vibration sources in the environment

In addition, the SI sensor lacks the function of directly identifying its own geographical location, so it is difficult to build a detection network with other similar sensors to monitor the whole picture of the seismic process in a certain geographical area

Images