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Transmitting-interference-oriented industrial wireless sensor network route construction method

A sensor network, transmission interference technology, applied in network topology, wireless communication, advanced technology and other directions, can solve the problems of forwarding packet optimization, forwarding delay optimization space and other problems, to improve real-time and effectiveness, flexible routing mechanism , the effect of wide application value

Active Publication Date: 2015-12-30
HOHAI UNIV CHANGZHOU
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Problems solved by technology

OMLRP consumes very little energy due to information interaction. OMLRP does not optimize the number of hops required to forward data packets to the Sink node, so there is still room for optimization in the forwarding delay.

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  • Transmitting-interference-oriented industrial wireless sensor network route construction method
  • Transmitting-interference-oriented industrial wireless sensor network route construction method
  • Transmitting-interference-oriented industrial wireless sensor network route construction method

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] A radiation interference-oriented industrial wireless sensor network routing construction method, the steps comprising:

[0035] Step 1: If figure 1 As shown, the communication range estimation of sensor nodes. Nodes use omnidirectional antennas to transmit signals with a certain transmission power, and evaluate the signal attenuation in all directions. After receiving signals, nodes in each direction send ACK information to the sending node. The distance between nodes is based on the curve fitting method to calculate the maximum transmission radius of the node in each direction, so that the node can estimate the normal communication range before the interference source appears, and the attenuation communication range after the interference source appears. A node that transmits signals for communication capability evaluation is called...

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Abstract

The invention relates to a transmitting-interference-oriented industrial wireless sensor network route construction method which comprises the following steps: to begin with, a node estimates actual communication capability according to electromagnetic wave attenuation information in the sampling direction; then, position of a transmitting interference source is estimated according to change of neighbour nodes before and after the emerging of the interference source, and the size of the transmitting interference area is calculated by utilizing a Delaunay triangle; and finally, based on energy cost, delay is forwarded, link reliability serves as selection standard of forwarding nodes, and when a routing path is close to the transmitting interference area, route control is carried out by utilizing a passing-around or passing-through mode with network connectivity and node energy level being combined. The method can effectively evaluate the communication capability of the node in a complex industrial environment, reduces the influence of the transmitting interference on network data transmission and improves real-time performance and reliability of network data transmission.

Description

technical field [0001] The invention relates to a radiation interference-oriented industrial wireless sensor network routing construction method, which belongs to the technical field of wireless sensor network communication support. Background technique [0002] In the transmission of data streams in industrial applications, it is required to reduce the frequency of routing requests and data waiting delay, so as to improve the reliability of data transmission. At the same time, it is necessary to consider the continuous loss of sensor node energy in the link, so as to achieve energy consumption balance the goal of. In addition, due to the harsh working environment and complex industrial noise, node or link failures often occur, and the routing mechanism needs to have a certain fault tolerance. Therefore, research on routing algorithm design for industrial applications has attracted people's attention. In recent years, a variety of sensor network routing protocols based on ...

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Application Information

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IPC IPC(8): H04W40/16H04W84/18
CPCH04W40/16H04W84/18Y02D30/70
Inventor 韩光洁刘立江金芳舒磊
Owner HOHAI UNIV CHANGZHOU
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