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Clustering-based data acquisition method of strip wireless sensor network

A wireless sensor and sensor network technology, applied in network topology, wireless communication, advanced technology, etc., to achieve the effect of reducing energy consumption

Inactive Publication Date: 2011-07-13
江苏中科泛联物联网科技股份有限公司
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  • Claims
  • Application Information

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Problems solved by technology

For this special strip network, the data acquisition methods of traditional planar WSNs have certain limitations in this scenario. Therefore, the design of a route-efficient data acquisition protocol under the condition of strip wireless sensor networks is strip sensor network one of the main challenges facing

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  • Clustering-based data acquisition method of strip wireless sensor network
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  • Clustering-based data acquisition method of strip wireless sensor network

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Embodiment Construction

[0031] like figure 1 , the present invention is applied to a strip wireless sensor network, and this network satisfies the following conditions:

[0032] The sensor nodes in the network can perform time synchronization through GPS or some kind of network time synchronization algorithm, and the time length of each frame and each time slot is consistent;

[0033] The number of time slots contained in a frame is greater than the number of cluster heads in the strip sensor network;

[0034] The width of the strip sensor network topology is very narrow (such as less than R / 2, R is the communication radius of the wireless sensor node), so the neighbor cluster heads of each cluster head are only distributed along the left and right sides of the strip network. The cluster heads at both ends of the strip network have only one neighbor cluster head;

[0035] Mobile Sink nodes have limited energy, and can obtain information such as their current moving speed, geographic coordinates, a...

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Abstract

The invention discloses a clustering-based data acquisition method of a strip wireless sensor network. The adopted technical scheme is as follows: the clustering-based data acquisition method comprises the steps: an energy high-efficiency clustering algorithm is adopted to carry out clustering on the strip wireless sensor network, and a cluster head node is selected; the sleep scheduling of the cluster head node is set, and the sleep scheduling of a neighbor cluster head is acquired; a moving sink node sets and dynamically updates the self sleep scheduling; then each sensor node forwards data packets to the cluster head node of the cluster on which the sensor node is located at first, and then the cluster head node carries out caching on the data packets; when in a moving time slot, if query packets broadcast by the moving sink node are received, the data packets are forwarded to the moving sink node in the duration of the time slot after a reply message is sent; and if the sending is not finished, an active time slot in next frame of the node is waited. In the method, the high routing efficiency is guaranteed, simultaneously, the energy consumption can be reduced, and the service life of a network can be prolonged.

Description

technical field [0001] The invention relates to a wireless sensor network, in particular to a mobile data collection method of a strip wireless sensor network. Background technique [0002] In recent years, Wireless Sensor Networks (WSNs) have been widely used in various fields due to their advantages of no need for fixed infrastructure support, rapid deployment, and strong invulnerability. The wireless sensor network used in the fields of border control, perimeter anti-intrusion, river monitoring, intelligent transportation, bridge monitoring, railway monitoring and other fields has its special strip network topology, which is one of the important fields of wireless sensor network application. For this special strip network, the data acquisition methods of traditional planar WSNs have certain limitations in this scenario. Therefore, the design of a route-efficient data acquisition protocol under the condition of strip wireless sensor networks is strip sensor network One of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 赵壮高雪王嵚
Owner 江苏中科泛联物联网科技股份有限公司
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