Mobile energy supplementation method in delay-constrained wireless sensor network

A wireless sensor network and energy supplement technology, applied in the field of wireless sensing, can solve the problems of many restrictions and large size of energy harvesting equipment, and achieve the effect of extending the life cycle

Active Publication Date: 2017-02-22
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Just because these renewable energy sources depend on the changing external environment and the size of the energy harvesting equipment is large, there are many restrictions in practical applications.

Method used

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  • Mobile energy supplementation method in delay-constrained wireless sensor network
  • Mobile energy supplementation method in delay-constrained wireless sensor network
  • Mobile energy supplementation method in delay-constrained wireless sensor network

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Embodiment Construction

[0033] A delay-limited mobile energy replenishment method in wireless sensor networks is applied in a wireless sensor network composed of several sensor nodes, a base station and a mobile node. Generate the access sequence of the mobile node, and in a new round of tasks, the mobile node traverses the nodes in the access sequence for data collection and charging, such as figure 1 As shown, the method for generating the access sequence of the mobile node includes:

[0034] Step 101, constructing the optimization objective and its restriction conditions for maximizing the ratio of charging energy consumption to mobile energy consumption;

[0035] Step 102, using a heuristic algorithm to obtain the visit sequence and the residence time of the mobile node at each node in the visit sequence.

[0036] It should be noted that the sensor nodes mentioned in the present invention refer to fixed sensor nodes; the mobile nodes refer to mobile sensor nodes.

[0037] Such as figure 2 As ...

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Abstract

The invention discloses a mobile energy supplementation method in a delay-constrained wireless sensor network. The mobile energy supplementation method is used in the wireless sensor network which is composed of multiple sensors, one base station and one mobile node; the access sequence of the mobile node is generated again after each round of data collection and charging tasks; and the mobile node in the new round of tasks traverses nodes in the access sequence for data collection and charging. The method of generating the access sequence of the mobile node comprises the steps of building an optimization target of a maximum specific value of charging energy consumption and mobile energy consumption and a limiting condition thereof; and obtaining the access sequence and residence time of the mobile node at each node in the access sequence by using a heuristic algorithm. According to the mobile energy supplementation method in the delay-constrained wireless sensor network, energy of sensor nodes in the network is supplemented through a wireless charging technology, charging while data collection is realized, and the life cycle of the wireless sensor network is prolonged.

Description

technical field [0001] The invention belongs to the field of wireless sensor technology, and in particular relates to a method for supplementing energy of other sensor nodes while collecting data in a network through a movable sensor node, thereby realizing a technology for prolonging the network lifetime. Background technique [0002] A wireless sensor network is a wireless network formed by a large number of wireless sensor nodes deployed in a specific area through self-organization. A typical wireless sensor network is to deploy several sensor nodes in the monitoring area, and send the perceived data to the aggregation node (base station) through multi-hop. The base station sends the monitoring data to the task management center for processing through Internet or satellite and other means. By deploying sensors in different environments, people can easily obtain various environmental data and convert them into the information they need, and grasp the dynamic changes of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00H04W4/00H04W4/02H04W84/18
CPCH04B5/0037H04W4/025H04W4/70H04W84/18Y02D30/70
Inventor 王田缪海星蒋文贤王文华吴尤可
Owner HUAQIAO UNIVERSITY
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