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Node energy consumption management method for wireless sensor network

A wireless sensor network and energy management technology, applied in power management, network topology, wireless communication, etc., can solve the problems of reducing the lifespan of nodes and reducing the sleep time of nodes

Inactive Publication Date: 2009-11-04
浙江沐网科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limitation of this method, as discussed above, reduces the sleep time of the node, thereby reducing the survival life of the node

Method used

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  • Node energy consumption management method for wireless sensor network
  • Node energy consumption management method for wireless sensor network
  • Node energy consumption management method for wireless sensor network

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Embodiment Construction

[0022] Hereinafter, the present invention will be further described in detail through the drawings and specific examples.

[0023] Such as figure 1 The wireless sensor network shown is composed of fixed nodes and mobile nodes. The essential feature of a fixed node is that the energy supplied by the node is very large, and its energy consumption can be ignored in the system design. The essential feature of a mobile node is that the energy supplied by the node is limited, and it must be in a sleep state most of the time. The network model we designed requires mobile nodes to communicate effectively with fixed nodes when passing through fixed nodes. One example is the vehicle management system. Each motor vehicle has a built-in radio frequency module, which is powered by a battery. The radio frequency module contains electronic information related to the vehicle. Vehicles are mobile nodes in the system we describe. Highway toll stations and checkpoints are possible fixed nodes, whic...

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Abstract

A wireless sensor network is a network structure in which a plurality of nodes are mutually communicated in a radio frequency mode. A majority of the nodes in the wireless sensor network are supplied with power by a battery. The power consumption management of the nodes is an important problem in the design of the wireless sensor network. A radical solution method comprises that the modes are in a sleep state of low power consumption in most time. Moving nodes and fixed nodes exist in some specific wireless sensor networks. The network requires that the moving nodes must be in effective communication when passing through the fixed nodes, namely requiring that the moving nodes must revive nearby the fixed nodes. The algorithm provides a power consumption management mechanism which can ensure that the moving nodes are in low power consumption and revive nearby the fixed nodes. The algorithm has the core that the moving nodes have two sleep modes of a long period and a short period, are usually in the long-period mode, are wakened nearby the fixed nodes and enter the short-period mode. The fixed nodes have a pre-wakening mechanism.

Description

Technical field [0001] The technical field of energy management methods for wireless sensor network systems, especially the energy management technology of mobile nodes. Background technique [0002] Wireless sensor network is a network structure in which many nodes communicate with each other through radio frequency. Each node is generally composed of a sensing unit, a processing unit, and a communication unit. Some nodes additionally have control units that control external mechanical systems or electrical systems. The main task of the sensing unit is to read the data to be monitored into the node through a certain pattern. The communication unit is a radio frequency module, which is responsible for establishing a unified communication channel between various nodes and communicating with each other. The processing unit is responsible for processing the data received by the sensor, and is also responsible for processing the data of the communication unit. The processing unit als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 吴鑫马永王辉
Owner 浙江沐网科技有限公司
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