Information accumulation device, data processing system, and program

A data and processing unit technology that is applied in the field of information storage devices and can solve problems such as slow reading speed

Active Publication Date: 2020-08-21
NIPPON TELEGRAPH & TELEPHONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, since the size of the data is not limited to a fixed length, if the write-in of the data is performed without special processing, the amount of calculation O(n) of the linear search of the data is required when the data is read, and there is a gap between the data and the data. Increases the problem that the reading speed becomes slow accordingly (for example, refer to Non-Patent Document 2)

Method used

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  • Information accumulation device, data processing system, and program
  • Information accumulation device, data processing system, and program
  • Information accumulation device, data processing system, and program

Examples

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Embodiment Construction

[0037] Next, an information storage device, a data processing system, and a program according to an embodiment of the present invention will be described with reference to the drawings.

[0038] figure 1 It is a functional block diagram showing the configuration of a data processing system including the information storage device 10 of the embodiment.

[0039] The data processing system includes an information storage device 10, a message broker 20, devices 30 (sensors) (30a to 30c), a Web server 40, and applications 50 (50a to 50c).

[0040] Devices (sensors) 30 (30a to 30c) correspond to data generation means, and this data generation means has the function of generating various data d measured continuously or periodically and the time t at which the data d is measured, and sending them to the message agent 20 . Hereinafter, the device (sensor) 30 is simply referred to as device 30 .

[0041] In the present embodiment, the data d transmitted from the device 30 is managed ...

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Abstract

When data generated by a device (30) arrive in the order of time points at which the data were generated, the data are added (written) to an actual data recording part (12b) in the order of arrival ofthe data, and the time point at which each data added to the actual data recording part (12b) was generated, the size of said data, and the position in an actual data file at which said data was added are added as index information to an index file (12a) having a filename corresponding to the actual data file in which said data was recorded.

Description

technical field [0001] The present invention relates to an information storage device, a data processing system, and a program that can read and write IoT data at high speed. Background technique [0002] In recent years, in a system configured by connecting various devices such as sensors capable of acquiring various data to a network, IoT (Internet Of Things) that utilizes data generated by the devices has attracted attention. [0003] In a system using the IoT, data is acquired continuously or periodically from various devices, and therefore a database capable of writing / reading large amounts of data sequentially generated over time at high speed is required. [0004] In addition, in the field using the IoT, a large number of various devices are often used to obtain various data, and therefore the devices used are required to be inexpensive. Therefore, it is often difficult to utilize expensive devices with large-capacity memories. [0005] On the other hand, a write-on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06G06F16/22G11B20/10G11B27/00
CPCG06F16/951G06F16/2228G11B27/105G11B20/1217G11B27/322G06F16/1824G06F16/156G06F16/148G06F16/1734
Inventor 柏木启一郎石井久治吉田由唯藤野知之
Owner NIPPON TELEGRAPH & TELEPHONE CORP
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