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176 results about "Time series database" patented technology

A time series database (TSDB) is a software system that is optimized for storing and serving time series through associated pairs of time(s) and value(s). In some fields, time series may be called profiles, curves, traces or trends. Several early time series databases are associated with industrial applications which could efficiently store measured values from sensory equipment (also referred to as data historians), but now are used in support of a much wider range of applications.

Time series data aggregation retrieval method and device and medium

The invention discloses a time series data aggregation retrieval method and device and a medium. The method comprises a database for storing the time series data, and comprises the steps of firstly, optimizing the time series database, adding a statistical level concept for the data storage, carrying out the hierarchical fragmentation storage of the time series data, and providing the data structure support for the optimization of the time series data aggregation retrieval; when the time series data is subjected to statistical query, applying different query algorithms according to different statistical query requests, and subjecting the time series data to the statistical query in combination with the hierarchical fragmented data storage structure. When the data is written into the database, the data only needs to be subjected to hierarchical fragmentation statistics according to the determined hierarchical fragmentation rule so as to record the data characteristics, and conditions for future query and retrieval are not considered in the writing process; during the statistical query, according to the retrieval conditions, the original data and all levels of statistical data are used, a statistical result is calculated after optimization and combination without depending on mass original data, so that the data access amount is reduced, and the retrieval efficiency is improved.
Owner:北京易沃特科技有限公司

Time series database system based on column storage

ActiveCN110362572AImproved feature depth integrationHigh-speed index functionSpecial data processing applicationsDatabase indexingOn columnQuery optimization
The invention discloses a time sequence database system based on column storage. The time sequence database system comprises: an SQL (Structured Query Language) parser, wherein the SQL parser is usedfor converting SQL into an abstract syntax tree through parsing; a logic plan generator which is used for generating a logic query plan by utilizing the abstract syntax tree, wherein the logic query plan is expressed by a relation algebra; a query optimizer which is used for optimizing the query plan by utilizing the state information of the database and outputting the rewritten query plan; an executor which is used for executing the query plan in a block iteration mode and is responsible for interacting with the storage layer to obtain data queried by a user; and a storage engine which is used for storing data in a row and column manner. According to the invention, data in the database is stored in a column mode; based on combination of column storage and rocksdb, high-speed insertion data characteristics and an indexing function of a traditional database are achieved, in the aspect of an executor, part of operators are improved to be deeply combined with characteristics of a storageengine, and meanwhile, new characteristics of a modern processor are used for accelerating query.
Owner:ZHEJIANG BANGSUN TECH CO LTD +1

Method and device for real-time monitoring on time sequence database of system

InactiveCN106503276AMeet monitoring needsOptimize multi-dimensional analysis and summary requirementsDatabase distribution/replicationSpecial data processing applicationsMonitoring systemClient-side
The invention discloses a method and device for real-time monitoring on a time sequence database of a system. The method comprises the following steps: firstly, establishing a RowKey of an HBase so as to add monitoring indexes; storing data into the HBase, managing metadata of the database, that is, setting a metadata table, and storing a positive relationship and a negative relationship of a unique marker of the metadata by using different row clusters; and finally, filtering the database, that is, summarizing the data at a server, and reducing the data volume transmitted to a client from the server, thereby completing the design of the whole time sequence database. Compared with the prior art, the method and device for real-time monitoring on the time sequence database of the system are capable of realizing the functions of real-time writing and inquiry of the monitoring system and solving the technical problems that real-time monitoring on various indexes in the monitoring system are low in efficiency, low in speed and poor in expandability, and can be widely applied to operation and maintenance monitoring systems of various software and hardware systems.
Owner:SHANDONG INSPUR CLOUD SERVICE INFORMATION TECH CO LTD

Supermarket fruit and vegetable optimized sales device and method based on data mining and preservation prediction

The invention relates to a supermarket fruit and vegetable optimized sales device based on data mining and preservation prediction. The device comprises a fruit and vegetable rotting degree information collecting module, a sales experience data collecting module, a time series database building module, a sales experience database building module, a data warehouse building module, a knowledge model mining module, a price model building module, a real-time price setting module and a prompting module, wherein the fruit and vegetable rotting degree information collecting module collects fruit and vegetable rotting degree information; the sales experience data collecting module collects sales experience data; the knowledge model mining module obtains knowledge models through mining; the price model building module builds a fruit and vegetable price model; the real-time price setting module sets the real-time price of fruits and vegetables; and the prompting module gives out sales promotion prompt at a fruit and vegetable rotting critical point. The supermarket fruit and vegetable optimized sales device has the advantages that on the basis of the existing sales experience, the shelf life of different kinds of fruits and vegetables in different time periods is accurately estimated, and a tiered reducing price sales strategy is automatically implemented, so the fruit and vegetable sales can be effectively promoted.
Owner:SHENZHEN INST OF ADVANCED TECH
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