Method for storing and querying distributed data in internet of things

Abstract

The invention provides a method for storing and querying distributed data in an internet of things. The method is used to realize the data collected by a plurality of bottom-layer perceptive networks in a lower layer of the internet of things to be distributed stored in a plurality of region servers in an upper layer. The method comprises a data storing step and a querying and reading data step. In the data storing step, the data collected by the bottom-layer networks is transmitted inside the bottom-layer networks based on an internal protocol thereof, then the data is transmitted to an access gateway, and through the access gateway, the data accesses the region servers arranged in the internet. The collected data is stored in a network formed by the region servers. The region servers use a distributed networking, divide the collected data into real-time data and delayed data, and the real-time data and the delayed data are stored in the region servers. The method applies a distributed storage network to storage of mass data in the internet of things for the first time, and timeliness division is performed on the data in order to save storage resources of the distributed storage network.

Description

technical field [0001] The invention relates to a data storage and query method in the Internet of Things, in particular to a method and system for distributed data storage and query in the Internet of Things. Background technique [0002] The Internet of Things (Internet of Things) has developed the original sensor network, RFID and other technologies. The original sensor network is included as an integral part of the Internet of Things. An important goal of the development of the Internet of Things is to break the original vertical application of sensor networks, that is, different applications need to build their own sensor network facilities, and resources cannot be shared between applications. This method has caused a huge waste of network resources. People imagine that the Internet of Things is a huge information production factory, and the data generated by the Internet of Things will be applied to all walks of life. The Internet of Things needs to establish a commo...

AI Technical Summary

Problems solved by technology

[0006] Therefore, there is an urgent need to provide a problem that can store a large amount of data generated by sensor networks in the Internet network, wherein DHT (distributed hash table, distributed hash table) is a distributed data storage method on the existing Internet , suitable for distributed storage and query of massive data, but how to apply it to the existing Internet of Things for data storage has not seen any relevant records

At the same time, the existing DHT system does not distinguish the timeliness of the stored data, while the data generated in the Internet of Things is application-related, and different data have different timeliness

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