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Method for aggregating sensor network data

A technology of sensor network and implementation method, which is applied in the implementation field of sensor network data aggregation, can solve the problems of small data packet data volume, increased network load, waste of bandwidth resources, etc.

Inactive Publication Date: 2011-03-23
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] When the sensor network is fused under the Internet of Things architecture, due to the wide distribution of sensor nodes and the large number of nodes in the sensor network, and the amount of data packets transmitted by each node is not large, if the data collected by each sensor node is forwarded , will bring a lot of extra information due to the overhead of the wireless header, resulting in a waste of bandwidth resources and increasing the load on the network

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  • Method for aggregating sensor network data
  • Method for aggregating sensor network data
  • Method for aggregating sensor network data

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Embodiment Construction

[0063] The invention proposes a data aggregation method to improve the effective information transmitted when the sensor network data is forwarded. The method is applicable to a network in which a sensor network and an IP network or a mobile communication network are integrated. Generally speaking, the method includes the following steps:

[0064] 1) Initialization, after the gateway is powered on, initialize the node information table;

[0065] 2) Add new node information in the sensor node information table: when receiving the sensor data, extract the node ID, search the sensor node information structure entity in the information table, if not found, create the node information entity, fill in the node information, and inserted into the info table;

[0066] 3) Aggregation and scheduling of sensor network node data: According to the information in the sensor node information table, it is judged whether aggregation is needed, A-PDU aggregation is encapsulated and put into the...

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Abstract

The invention relates to a method for aggregating sensor network data. The method comprises the following steps of: 1), initially creating a sensor network node information list, namely finishing the creation of the node information list existing in the present sensor network; 2), adding new node information into the sensor node information list, namely when receiving sensor data, extracting a node ID, calculating a hash value according to the node ID, searching the sensor node information in the information list according to the calculated hash value, if the sensor node information is not found, creating an entity of the node information and inserting the node information entity into the information list; and 3), aggregating and scheduling sensor network node data, namely finding the corresponding node information structure entity in the sensor node information list, judging whether an aggregating condition is met or not according to the value of aggregating representing places in the information structure entity, selecting a sending way from a way of an aggregating message link and a way of a single packet, assembling the packet in accordance with the aggregating condition into an aggregating link according to an aggregating threshold and sending aggregating link.

Description

technical field [0001] The present invention relates to the field of sensor network access in the Internet of Things architecture, in particular, the present invention relates to a method for realizing data aggregation of sensor networks. Background technique [0002] Sensor Network (SN) is a self-organizing network composed of a large number of sensor nodes through wireless communication technology. It integrates data collection, transmission, and fusion analysis. It is a new field of information technology and greatly expands people's Information acquisition ability, which can connect the physical information of the objective world with the transmission network, and provide people with the most direct, effective and authentic information in the next generation Internet. [0003] The Internet of Things refers to a huge network formed by combining various information sensing devices, such as radio frequency identification (RFID) devices, infrared sensors, global positioning ...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W84/18
Inventor 秦小伟陈程唐鼎赵志军唐晖谭红艳
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI