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Method and system for forwarding network data by wireless sensor

A wireless sensor and network data technology, which is applied in the field of wireless sensor network data forwarding methods and systems, and can solve problems such as inapplicability to actual links and energy waste.

Active Publication Date: 2011-11-16
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the GEAR protocol is also based on the ideal channel model and is not applicable to actual links.
In addition, GEAR only obtains the energy information of neighbor nodes by broadcasting data packets, resulting in a serious waste of energy.

Method used

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  • Method and system for forwarding network data by wireless sensor
  • Method and system for forwarding network data by wireless sensor

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Embodiment Construction

[0084] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0085] Such as image 3 As shown, a specific embodiment of the method of the present invention includes the following steps.

[0086] In step S301, the destination node sends its own geographical location information, and the ordinary node sends its own geographical location and remaining energy information.

[0087] In a wireless sensor network, each ordinary node is an ordinary sensor, and the ordinary node obtains its own geographical location through a positioning device, such as GPS, or through a related positioning algorithm, such as an algorithm for positioning through distance measurement, and at the same time, the ordinary node checks to obtain its own remaining energy.

[0088] After the ordinary node obtains its own geographical location and remaining energy information, it broadcasts a beacon frame, which contains the ordinary node's geographica...

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Abstract

The invention relates to a method and a system for forwarding network data by a wireless sensor. The method comprises the following steps that: 1, a destination node sends information on own geographical position, and a common node sends information on own geographical position and residual energy; 2, the common node receives the information on the geographical position of the destination node and the information on the geographical positions and the residual energy of neighbor nodes; 3, the common node selects the neighbor nodes which are closer to the destination node as predecessor neighbor nodes according to the information on the geographical positions of the destination node and the neighbor node; 4, the common node estimates the total transmission times to reach the destination node by using each one of the predecessor neighbor nodes as the next hop; and 5, the common node compares the total transmission times with the residual energy of the each one of the predecessor neighbornodes, and selects the next hop common node of a route reaching the destination node from the predecessor neighbor nodes. The method and the system can perform load balancing and improve the energy service efficiency while ensuring reliable data transmission.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a wireless sensor network data forwarding method and system. Background technique [0002] In many wireless sensor network applications, common sensor nodes need to report the position of common nodes when sending collected data to destination nodes, such as base stations or cluster heads. After receiving the data, the destination node can accurately judge the area where the event occurred and take corresponding actions. For example, in the application of forest fire prevention, when the sensor network detects the occurrence of a fire, firefighters need to accurately locate the specific location of the fire. Therefore, how to implement data transmission based on node geographic information in wireless sensor network applications will be very meaningful. Nodes can use GPS (Global Positioning System, Global Positioning System) positioning devices or related positioning pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04W28/08H04W40/02
CPCY02D30/70
Inventor 赵磊朱红松徐勇军李晓维
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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