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ZigBee sensor network tree route low-expense optimization method

A sensor network and routing technology, applied in advanced technology, electrical components, sustainable buildings, etc., can solve problems such as high overhead, missing optimal routing, and unsatisfactory performance, so as to promote transmission delay and balance node energy consumption, prolonging the lifetime and network lifespan effects

Active Publication Date: 2013-11-06
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0034] The technical problem to be solved by the present invention is that the performance is not ideal when optimizing the routing of the ZigBee sensor network tree in the prior art, the cost of flooding to find the optimal route is relatively large, and the optimal route may be missed. Low-overhead optimization method for controlled flooding tree routing in ZigBee sensor networks

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  • ZigBee sensor network tree route low-expense optimization method
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  • ZigBee sensor network tree route low-expense optimization method

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Embodiment Construction

[0043] The present invention aims at the problems in the ZigBee sensor network tree routing optimization field described above, and proposes a ZigBee sensor network tree routing low-overhead optimization method based on controlled flooding, in which the flooding of the path-finding group is limited New mechanisms for hop count and forwarding nodes, allowing intermediate nodes to reply to pathfinding packets, and comprehensively considering hop count and node remaining energy for path optimization in multi-path situations, reduce flooding overhead as much as possible, and reduce the time to establish the optimal route Delay, choose the path with the least number of hops and the largest remaining energy value of the nodes in the path, balance the energy consumption of nodes, and prolong the survival time of nodes and network life.

[0044] attached Figure 4 Shown is a composition block diagram of the ZigBee sensor network tree routing low-overhead optimization method based on c...

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Abstract

The invention discloses a method for optimizing ZigBee sensor network tree routing with low overhead. The method includes four stages: sending out a pathfinding packet, processing a pathfinding packet, sending out a reply packet and processing the reply packet. The present invention limits the flooding operation in the routing optimization process of the ZigBee sensor network tree in terms of the forwarding node and hop range of the pathfinding grouping, so that the flooding overhead is significantly reduced; at the same time, the intermediate node is allowed to perform pathfinding grouping Reply, can further reduce the flooding overhead and reduce the path-finding delay of the optimal route; moreover, by designing a new path length measurement mechanism that reflects the number of hops and the remaining energy of nodes at the same time—the synthetic hop number, it can be used in multi-path situations The energy optimal route is selected in order to balance the energy consumption of nodes, prolong the survival time of nodes and the life of the network.

Description

Technical field [0001] The invention involves the field of wireless sensor network technology. It specially involves the use of the ZigBee standard -defined distributed address distribution mechanism DAAM (Distributed Address Assignment MeChanism) and tree routing mechanism, and distribute independent -identified wireless sensor networks for each node in the network. Background technique [0002] The wireless sensor network is a self -organized, mission -oriented, and data -centric wireless network distributed in a certain area with a sensor node distributed in a certain area.As a new type of information acquisition and transmission system, wireless sensor networks have advantages in distributed deployment and self -organizing operations. Therefore, the application prospects are broad. Therefore, for the future of the Internet of Things and ubiquitous networks (Ubiquitous Networks)Realization and development are of great significance. [0003] The ZigBee standard is a set of comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/24
CPCY02B60/50Y02D30/70
Inventor 任智樊海彬李玉兰陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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