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A method and a system for realizing data caching of equipment in an offline state

A data caching and data technology, applied in memory systems, electrical digital data processing, instruments, etc., can solve problems such as easy data loss

Pending Publication Date: 2019-05-28
AEROSPACE INFORMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a method and system for realizing data caching in the offline state of the device, so as to solve the problem that data is easily lost when the communication link between the device and the background is abnormal

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  • A method and a system for realizing data caching of equipment in an offline state
  • A method and a system for realizing data caching of equipment in an offline state

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Embodiment Construction

[0043] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0044] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a method and a system for realizing data caching in an offline state of equipment. The method comprises the following steps: monitoring a connection state of a communication link between the equipment and a background; when the connection state of the communication link between the device and the background is an abnormal connection state, caching data to be transmitted inthe device to a local first-level cache space for storage according to a preset two-level storage mode; And transferring the data stored in the first-level cache space to a local second-level storagespace according to a preset data transferring rule, and releasing the storage space occupied by the transferred data in the first cache space. In the two-stage storage mode, the first-stage cache space is a high-speed cache; The device has the advantages of being high in storage speed and small in storage capacity, the second-level storage space adopts a data base storage mode for low-speed storage, the second-level storage space has the advantages of being large in storage capacity and low in storage speed, data loss can be effectively prevented, and equipment and background communication data transmission is safer and more reliable.

Description

technical field [0001] The present invention relates to the technical field of data storage of big data, and more specifically, relates to a method and system for realizing data caching in an offline state of a device. Background technique [0002] At present, in the process of communication between industrial equipment or Internet of Things equipment and the background, when the communication link is abnormal, the device does not store the data to be sent to the background, which will lead to data loss; or simply store the data Offline cache, the storage speed is slow, and only general data can be stored. For a large amount of high-speed data that is periodically short-term, there is a risk of data loss. [0003] Therefore, there is a need for a method that can solve the problem that data is easily lost when the communication link between the device and the background is abnormal, and can meet the speed requirements of high-speed data storage and meet the requirements of la...

Claims

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Application Information

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IPC IPC(8): G06F12/0868
Inventor 董旭于佳意
Owner AEROSPACE INFORMATION
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