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Construction method of time nested cache model of pilot frequency data object

A technology of data objects and construction methods, applied in the field of data processing, can solve problems such as differences in sampling frequency, achieve reasonable and effective resource occupation, and ensure long-term stable and effective operation

Active Publication Date: 2021-02-12
INST OF GEOLOGY CHINA EARTHQUAKE ADMINISTRATION
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Problems solved by technology

In this process, due to the different measurement mechanisms of data from different sources, there is a large difference in the sampling frequency

Method used

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  • Construction method of time nested cache model of pilot frequency data object
  • Construction method of time nested cache model of pilot frequency data object
  • Construction method of time nested cache model of pilot frequency data object

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Embodiment

[0054] According to the construction method of the time-nested cache model of the above-mentioned different-frequency data objects, data of different frequencies in the field of earthquake early warning are collected; GNSS receivers and MEMS network strong motion instruments are set up under the earthquake monitoring stations. Among them, the GNSS receiver generates low-frequency displacement data with a frequency of 1 Hz, and the MEMS network strong motion instrument generates high-frequency acceleration data with a frequency of 50 Hz. The time nested cache model of the inter-frequency data object is as follows figure 1 As shown, the low-frequency data cache list is the first layer storage structure of the time nested cache model of different frequency data objects, and the high frequency data cache list is the second layer storage structure of the time nested cache model of different frequency data objects ;

[0055] CacheModel = {(stID, Station) i |i=1,2,…n}

[0056] Amo...

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Abstract

The invention discloses a construction method of a time nested cache model of a pilot frequency data object, which comprises the following steps: generating displacement data and acceleration data with different frequencies by a detection station according to data moments and different data frequencies; orderly writing the data into a first-layer storage structure and a second-layer storage structure in a pilot frequency data object time hierarchy nested cache model of a cache space to ensure real-time effective fusion of data with different frequencies; and maintaining the cache space of thedetection station periodically, and maintaining the strong timeliness of the data in the cache space, so that the invalid occupation of the resource space caused by continuously caching the data is avoided, and the continuous and stable operation of the system is ensured.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method for constructing a time-nested cache model of different-frequency data objects. Background technique [0002] my country's earthquake monitoring work has developed from a single observation to a comprehensive observation system consisting of multiple disciplines and multiple measurement items such as seismometry, electromagnetics, deformation, and underground fluids; observation technology has gradually realized the transition from analog observation to digital, intelligent, and networked and other methods; and gradually established a seismic monitoring network that basically covers the whole country and key areas. Earthquake monitoring stations are the basic components of the national earthquake monitoring and earth science research system, which accumulate and provide basic data for earthquake monitoring and forecasting, earth science and basic research; undertake compreh...

Claims

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Application Information

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IPC IPC(8): G06F16/22G06F16/2455G06F16/28
CPCG06F16/22G06F16/24552G06F16/28
Inventor 单新建郭皓明张国宏魏闫艳刘云华高志钰
Owner INST OF GEOLOGY CHINA EARTHQUAKE ADMINISTRATION
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