Routing method for load balancing between multiple sink nodes of wireless sensor network

Abstract

The invention discloses a routing method for load balancing between multiple sink nodes of a wireless sensor network. The method comprises the following steps that: step one, a sink node carries out broadcasting transmission on an RINIT broadcasting command packet that is used for establishing a sink gradient; step two, a sensor node that has received the RINIT broadcasting command packet parses the content of the RINIT broadcasting command packet as well as sets or updates a distance / hop count of from the senor node itself to the sink node; step three, the sink node sends an RCTL command packet that is used for adjusting region division when necessary; step four, a sensor node that has received the RCTL command packet parses the content of the RCTL command packet as well as arranges or updates a target sink node of the sensor node itself according to the content of the RCTL command packet to realize region adjustment; and step five, the step four is repeated until the adjusted regions of the sensor nodes satisfy requirements of the RCTL command packet. According to the method disclosed in the invention, control costs of a wireless sensor network system are substantially reduced; calculating costs are low; efficiency is high; and network service life is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to a load balancing routing method among multiple convergence nodes of a wireless sensor network. Background technique [0002] The wireless sensor network can collaboratively detect, track and collect information of various environments or monitoring objects in the network deployment area in real time, and carry out collaborative and fusion processing on these information to obtain more accurate conclusions, and then transmit them to users. The sensor nodes are generally powered by batteries, and one of its major characteristics is that the energy is limited. Another important feature of sensor networks is application specificity. In order to improve the information entropy of uploaded data and the accuracy of events, network nodes often require multi-type sensors and multi-node collaborative information processing, and require seamless coverage of the monitored are...

AI Technical Summary

Problems solved by technology

Since the data sensed by sensor nodes in wireless sensor networks has the characteristics of continuity and uncertainty, and because the sensing tasks of sensor nodes in different regions are different, the amount of data generated by nodes in different geographical locations is different, that is, the imbalance of sensor network data, and The load area division of the NS mechanism is uneven, resulting in some sinks being overloaded, and nodes close to the sink are depleted of energy due to excessive data transmission, which seriously affects the service life of the network

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