Energy efficiency optimization activation method and system for wireless sensor network nodes
A sensor node, wireless sensor technology, applied in network topology, wireless communication, energy consumption reduction and other directions, can solve the problems of inability to save wireless sensor network energy to the maximum extent, low node energy saving efficiency, etc., to achieve simple implementation, improve energy saving efficiency, Calculate easy effects
Active Publication Date: 2018-07-17
CHINA ELECTRONICS TECH GRP NO 7 RES INST
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[0005] Based on this, it is necessary to provide a wireless sensor network node energy efficiency optimization activation method and system with high node energy saving efficiency for the problem that the current wireless network adjustment node activation method has low node energy saving efficiency and cannot save the energy of the wireless sensor network to the maximum extent.
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.
[0026] In order to facilitate the explanation, the wireless sensor network node energy efficiency optimization activation method and system technical solution and the beneficial effects brought by the present invention are described. In the following embodiments, it is assumed that the network is composed of wireless sensor nodes and gateway nodes, the wireless sensors are powered by solar energy, and the gateway nodes are powered by commercial power. Wireless sensor nodes have the ability to detect their current remaining life, and have a certain maximum transmission radius. The gateway node has sufficient energ...
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The invention discloses a method and a system for activating energy efficiency of wireless sensor network nodes. The method includes steps of distinguishing gateway nodes and sensor nodes of the wireless sensor network nodes, selecting one gateway node as a cluster head, clustering the sensor nodes and the gateway node according to the principle of closest distance, calculating residual life of the sensor nodes of the cluster and current required data transmission quantity, further calculating a duty cycle of activation time required according to the calculated data, and finally activating the sensor nodes according to the duty cycle of the activation time required. In the whole process, parameters of the residual life and the required transmission volume are sent to the gateway nodes from the cluster sensor nodes, and through the gateway nodes, the duty cycle of activation time of each node is calculated according to conditions of cluster node energy and flow. The method is simple in calculation and easy to implement. The duty cycle of activation time of each node fluctuates within a certain range along with network load and the residual life to adapt to changes of network, thus node energy efficiency is improved while service life of the whole network is prolonged.
Description
technical field [0001] The invention relates to the technical field of wireless networks, in particular to a method and system for optimizing and activating energy efficiency of wireless sensor network nodes. Background technique [0002] With its own technical characteristics, wireless sensor networks can be widely used in various fields. When wireless sensor networks are applied to scenarios such as smart grids, river and bridge monitoring, and railway monitoring, the network deployment is usually in the form of strips or lines. . Because the traditional wireless sensors are powered by batteries, the energy is limited, and it is not suitable for the long-term operation of the network. Therefore, a method of using rechargeable batteries based on renewable energy such as solar energy and wind energy to supply power to each node of the sensor network has recently been proposed. A strip or line sensor network generally consists of wireless sensor nodes and gateway nodes. [...
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IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 沈勇李新征马井泉郑哲青刘伟海冯穗力
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST