Mobile sensor network routing method based on region gradient updating

A mobile sensor and network technology, applied in network topology, data exchange network, transmission system, etc., can solve the problems of short convergence time, occupying storage space, and high energy consumption.

Inactive Publication Date: 2009-10-28
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] The routing protocols designed in the literature have relatively short convergence time for route establishment, but have the following defects: network nodes need to frequently exchange time information to establish gradients during the movement process, and the energy cost is relatively large; each node needs to save a The encounter time gradient value table needs to occupy a certain amount of storage space

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  • Mobile sensor network routing method based on region gradient updating
  • Mobile sensor network routing method based on region gradient updating
  • Mobile sensor network routing method based on region gradient updating

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Embodiment Construction

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] The specific implementation is as follows: In order to avoid the conflict between regional gradient information signal and data communication, this protocol uses two separate channels for broadcast and data transmission in the sensor network. The broadcast channel is used by the base station to broadcast area information to the sensor nodes in the network; the data transmission channel is used by the sensor nodes in the network to communicate with each other. This agreement consists of the following three parts:

[0059] (a) Establishment of regional gradients: After the network nodes are deployed, the entire network is in the initial state, and the base station synchronizes time with the nodes of the entire network. Then the base station periodically broadcasts the regional gradient information to the network nodes through the broadc...

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Abstract

The invention discloses a mobile sensor network routing method based on area gradient update. The invention is beneficial to the application and development of my country's wireless sensor network technology, and is beneficial to my country's environmental monitoring and forecasting, natural disaster emergency treatment, scientific investigation and exploration, smart home, urban transportation, large garage and warehouse management, as well as airports and large industrial parks. Areas such as safety monitoring will play an important role. The method mainly solves the problems that the energy consumption of the prior art protocol is relatively large and occupies a lot of storage space. In the method, the base station initiates the establishment of regional gradients and periodically updates the regional gradients, and synchronizes the time of the entire network. When the source node wants to send data to the sink node, the source node initiates and establishes a link to the sink node to complete the data transmission. Based on the wireless sensor network, the service life of the wireless sensor network is increased, and the storage space of the sensor is saved.

Description

technical field [0001] The invention relates to a routing selection between a sensor node and a converging node in a wireless sensor network, and in particular provides a routing method for a mobile sensor network based on area gradient updating. Background technique [0002] The mobile sensor network is a dynamic sensor network, which consists of a large number of dynamic sensor nodes and a small number of static sensor nodes. The dynamic sensor nodes move randomly in the network area, and the adjacent nodes rely on wireless links for communication. The mobile sensor nodes in the network are responsible for collecting information, and use other sensor nodes to forward the information to the sink node. The routing method is used to establish an information transmission path from a source node to a sink node, and select an intermediate node that needs to forward information. All nodes on the transmission path consume a certain amount of energy when forwarding data. How to de...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/28H04L45/02H04W84/18
Inventor 周贤伟王建萍杨双仕王丽娜杨裕亮杨扬
Owner UNIV OF SCI & TECH BEIJING
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