Digital strong motion seismograph

Abstract

The invention discloses a digital strong motion seismograph, which comprises a seismic signal acquisition and conversion unit, a seismic signal processing and control unit, a seismic data management unit, a human-computer interaction unit and a power supply management unit; the seismic signal acquisition and conversion unit is used for acquiring seismic signals, performing digital processing on the seismic signals and sending the processed seismic signals to the seismic signal processing and control unit; the seismic signal processing and control unit is used for seismic event judgment, intensity calculation and emergency control; the seismic data management unit is used for receiving the data from the seismic signal processing and control unit, arranging the data according to a certain format and sending the data to the human-computer interaction unit; the human-computer interaction unit is used for information and data exchange between a user and the digital strong motion seismograph; and the power supply management unit is used for supplying power to the seismic signal acquisition and conversion unit, the seismic signal processing and control unit, the seismic data management unit and the human-computer interaction unit. The digital strong motion seismograph can be used for seismic disaster defense.

Description

technical field [0001] The invention relates to the field of seismic signal detection, in particular to a digital strong motion instrument. Background technique [0002] The catastrophe caused by the earthquake caused serious damage to life and property. When a large earthquake occurs, the data on seismic intensity quickly obtained through special instruments is of great significance to guide earthquake relief and help to judge the macro-epicenter and the degree of damage caused by the earthquake in a short time. When a destructive earthquake occurs, it is necessary to provide earthquake emergency measures and alarm information for major projects, lifeline projects, and places and facilities where the public gathers. For example, for the earthquake disaster prevention of high-speed railways, strong earthquake observation instruments are required to capture earthquake signals in real time, accurately judge the degree of earthquake damage, and take timely disposal measures to...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, such as patent documents CN1407349A, ZL200420018483.X, ZL200920003722.7 and ZL200820077654.4, there is no special description or measure for the real-time performance of the instrument, and a single embedded processor is usually used for seismic Data collection and processing, as well as remote communication, data storage and other functions

Due to the limited processing capacity of the embedded system, with the increase of instrument functions, the number of processing tasks is huge. Even if a 32-bit embedded processor is used, switching between different processing tasks will waste a lot of processor working time. The strict requirements for real-time performance of intensity quick reports and emergency response tasks cannot be guaranteed

In addition, the precise intensity algorithm has a large amount of calculation, and it will take a lot of time to realize it on the embedded system, and it is impossible to realize the real intensity rapid report

Some strong motion instruments use an 8-bit or 16-bit embedded microcontroller as the main control CPU. Although the cost is reduced, the overall performance and flexibility of the system are sacrificed, which greatly limits the scope of its application.

Therefore, strong motion instruments using a single embedded microcontroller have lower performance and less flexibility

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