Energy saving routing algorithm of composite structure mine emergency rescue wireless mesh network

A wireless mesh network and emergency rescue technology, applied in the network field, can solve the problems of low energy reserve of wireless terminal equipment, restricting the working time of mine emergency rescue communication system, etc., to reduce the use probability and broadcast range, improve throughput performance, reduce The effect of bandwidth overhead

Active Publication Date: 2013-05-15
BEIJING JIAOTONG UNIV
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Problems solved by technology

Since the existing wireless mesh network routing protocols do not distinguish between network node types, wireless Mesh terminals need to undertake additional routing and forwarding tasks on the basis of performing their application functions, which puts higher requirements on the energy configuration of wireless Mesh terminals
In the underground emergency rescue scenario, the energy reserve of wireless terminal equipment is low, and the terminal energy consumption problem seriously restricts the working hours of the mine emergency rescue communication system.

Method used

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  • Energy saving routing algorithm of composite structure mine emergency rescue wireless mesh network
  • Energy saving routing algorithm of composite structure mine emergency rescue wireless mesh network
  • Energy saving routing algorithm of composite structure mine emergency rescue wireless mesh network

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[0027] refer to Figure 1-6 Examples of the present invention will be described.

[0028] In order to make the above objects, features and advantages more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] According to the application characteristics of the wireless terminal mainly communicating with the gateway in the mine emergency rescue communication scene, the design of the present invention is based on the following application background:

[0030] ● All Mesh terminals only communicate with the gateway;

[0031] ● A proactive routing protocol is used between Mesh backbone routing nodes and gateways, and any backbone routing node routinely maintains routing information to the gateway.

[0032] On-demand distance vector routing (ad hoc on demand distance vector routing, AODV) is the most widely used routing protocol in wireless mesh networks, and research shows t...

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Abstract

The invention discloses an energy saving routing algorithm of a composite structure mine emergency rescue wireless mesh network. The algorithm includes the following steps: step 1, node type information is set up; step 2: communication states of Mesh wireless terminals are divided into three types, namely, an 'interior' state, an 'edge' state and a 'repair' state; step 3, each Mesh terminal node maintains one Mesh backbone routing node list; and step 4, if the first Mesh terminal is found to be in the 'interior' state, the neighbor backbone routing nodes nearest to a gateway are selected to set up a route to the gateway directly according to information of the Mesh backbone routing node lists.

Description

technical field [0001] The invention relates to the field of network technology, in particular to an energy-saving routing algorithm for a mixed-structure mine emergency rescue wireless mesh network. Background technique [0002] A wireless mesh network, also known as a wireless Mesh network, is a wireless multi-hop relay network that can realize self-organizing and self-configuring. The expansion of wireless mesh network does not rely on wired infrastructure, and it can quickly form a network. It has application characteristics such as flexibility, portability, and strong environmental adaptability. It is an advantageous technology for building a wireless communication network for emergency rescue in coal mines. Among them, the underground emergency rescue wireless mesh network based on the hybrid mesh network structure has become a research hotspot because of its high network path redundancy and strong transmission robustness. The wireless mesh network structure of coal m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/24
CPCY02B60/50Y02D30/70
Inventor 张玉杨维张海涛
Owner BEIJING JIAOTONG UNIV
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