An energy-efficient routing decision-making method for a wireless sensor network in a tunnel environment

A wireless sensor and tunnel environment technology, applied in the field of energy efficient routing decision-making of wireless sensor networks, can solve problems such as inapplicable wireless sensor networks, and achieve the effect of solving delay and reliability

Active Publication Date: 2019-06-11
中铁西南科学研究院有限公司
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Problems solved by technology

[0003] A kind of hierarchical AODV routing method (CN102118312B) of existing technology is a kind of improvement on the basis of AODV, is a kind of traditional network AODV ro

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  • An energy-efficient routing decision-making method for a wireless sensor network in a tunnel environment
  • An energy-efficient routing decision-making method for a wireless sensor network in a tunnel environment
  • An energy-efficient routing decision-making method for a wireless sensor network in a tunnel environment

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] In order to ensure that the monitoring data in the tunnel can be transmitted correctly and reliably, this paper performs redundant processing on the network routing node layout in the tunnel, that is, the routing nodes can be skipped for transmission, so as to avoid the physical death of a node and cause the wireless monitoring network to be paralyzed. The transmission diagram of tunnel wireless monitoring network is as follows: figure 1 shown.

[0041] The routing decision strategy proposed in this program is consistent with the AODV (Adhoc On-Demand Distance VectorRouting) routing protocol packet type, respectively routing request (RREQ: Routing REQuest), routing response (RREP: Routing REPly), routing error (RERR: Routing ERRor ), HELLO packets and user data packets. The data structure of the routing error and t...

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Abstract

The invention discloses an energy-efficient routing decision-making method for a wireless sensor network in a tunnel environment, which comprises the following steps that a tunnel node serving as a source node initiates a routing request and initializes a routing request frame at the same time; after receiving the routing request, the routing node calculates decision factors ETX, Ei and E3TX, updates a routing table, checks whether a table entry of a destination node exists in the routing table, and sends a routing response if the table entry of the destination node exists in the routing table; the routing node receives the routing response, the node compares the locally calculated information with the data in the routing response frame, and if the condition is met, the routing node stopsforwarding to the source node and generates a reverse route. According to the present invention, the optimal path from the source node to the destination node can be obtained by using the routing decision algorithm in combination with energy efficiency, hop count, ETX and reliability, and meanwhile, the problems of time delay and reliability are solved.

Description

technical field [0001] The invention relates to optimal wireless transmission path decision-making for a wireless sensor network, in particular to an energy-effective routing decision-making method for a wireless sensor network in a tunnel environment. Background technique [0002] In terms of practical wireless transmission network applications such as construction and operation tunnel health monitoring, due to the complex environment and special distribution of network nodes, traditional routing protocols cannot guarantee energy consumption and network reliability in complex tunnel environments. In the tunnel environment, it is difficult for the routing to exist in the multipath routing of the conventional network, but the single-path routing, which is usually straight, has a more significant multipath effect than the conventional environment. In order to solve the energy efficiency and network reliability of the wireless transmission network in the tunnel environment, it ...

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Application Information

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IPC IPC(8): H04L12/721H04W40/10
CPCY02D30/00Y02D30/70
Inventor 廖凯吴剑王刚刘志强王斌
Owner 中铁西南科学研究院有限公司
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