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The json format setting method of hydrological time series data

A time series data and setting method technology, applied in structured data retrieval, database management systems, special data processing applications, etc., can solve the problems of limited compression effect and failure to consider the characteristics of hydrological time series data, etc., to shorten the length and reduce writing The effect of times

Active Publication Date: 2019-07-02
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, there are two main JSON compression algorithms: CJSON and Hpack. These two compression algorithms serve general data and do not consider the characteristics of hydrological time series data, so the compression effect is limited.

Method used

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  • The json format setting method of hydrological time series data
  • The json format setting method of hydrological time series data
  • The json format setting method of hydrological time series data

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0018] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention discloses a JSON format setting method of hydrological time series data. The method comprises the steps that time series attributes are classified according to the step length feature and interval feature of the time series attributes; expression of date and time abides by the standard GB / T 7408-2005 / ISO 8601:2000; all nominal attributes are sorted according to the order of the numbers of no-repeat values contained by the nominal attributes from few to more; a JSON object serves as a main structure, and the main structure comprises a key value pair of which the key names are nominal, timeseries and data respectively; different data subsets are screened out from original data according to values of the nominal attributes; converted JSON-format original hydrological time series data comprises information of the data values and time information of the data. The JSON format setting method has the following advantages that the total length of a data series is as small as possible through the efficient organization structure, and the network transmission efficiency is improved.

Description

technical field [0001] The invention relates to the field of hydrological time series data representation, in particular to a JSON format setting method for hydrological time series data. Background technique [0002] In the informatization process of the water conservancy industry, the transmission of industry data is becoming more and more important. Hydrological time series data is an important type of industry data. If the data is not effectively organized or compressed, network transmission will take up a lot of bandwidth and time when the data volume is large. [0003] At present, the general standard for data expression in the water conservancy industry is WaterML. WaterML is an open-source data model for hydrological observation data. It mainly provides a general means of information exchange between different information systems, and seldom considers the minimization of data flow in data expression. Since WaterML is based on the XML language (Extensible Markup Lan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/25
CPCG06F16/258
Inventor 傅汪李铁键邬涛史凯方魏加华黄跃飞
Owner TSINGHUA UNIV
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