Routing method, device and system of wireless sensor network
A wireless sensor and network technology, applied in the network field, can solve problems such as instability, data communication instability, cluster head node unreliability, etc., and achieve the effects of reducing energy consumption and solving unreliability and instability
Active Publication Date: 2012-10-03
CHINA UNITED NETWORK COMM GRP CO LTD
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[0006] The present invention provides a routing method, device and system for a wireless sensor network, which can solve the problem that the existing routing method easily causes the unreliability and instability of cluster head nodes, thereby causing the instability of data communication
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[0027] In order to give a clear and detailed introduction to the embodiment of the present invention, here we first introduce the specific application scenarios of the routing method for the wireless sensor network provided by the embodiment of the present invention. figure 1 A schematic diagram of the application system of the wireless sensor network routing method provided by the embodiment of the present invention, as shown in figure 1 As shown, the application scenario of this embodiment is a wireless sensor network centered on the sink node, assuming that all nodes in the wireless sensor network are not evenly distributed in a circular area centered on the sink node, and the circular area According to the preset radius difference, it is divided into different levels, such as the first layer, the second layer...the Kth layer from the inside to the outside.
[0028] figure 2 for figure 1 The flow diagram of the clustering method of the application system shown, such as ...
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The invention provides a routing method, a device and a system of a wireless sensor network. The method comprises the following steps that: target node information of a data packet to be sent is obtained by a sending node; the sending mode is a cluster head node; the target node information comprises an address, a layer number and a node mark of the target node; the node mark comprises a cluster head mark or a non-cluster head mark; a cluster head node which is closest to the target node is determined according to the target node information; and the data packet to be sent is sent to the cluster head node which is closest to the target node so that the cluster head node which is closest to the target node sends the data packet to be sent to the target node. According to the invention, the problem that in the prior art, data communication is unstable due to the unreliability and instability of the cluster head node is solved.
Description
technical field [0001] The present invention relates to the field of network technology, in particular to a routing method, device and system for a wireless sensor network. Background technique [0002] The wireless sensor network is composed of aggregation nodes and collection nodes. The network is formed in the form of multi-hop and self-organization. The collection nodes are responsible for collecting information in related areas, and then transmit the collected information to the aggregation nodes through multi-hop relays. , and then sent to the external network. Different from the traditional Ad-hoc network, wireless sensor network has the characteristics of wireless, self-organization, limited energy of a single node, dynamic change of network topology and so on. Therefore, the traditional routing protocols cannot be applied to the environment of wireless sensor networks, and cannot meet the special communication requirements of wireless sensor networks. [0003] Acc...
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Login to View More IPC IPC(8): H04W40/04H04W84/18
CPCY02D30/70
Inventor 张智江王明会彭久生邢建兵姚海鹏石谊娜刘铭陈起高德云段俊奇
Owner CHINA UNITED NETWORK COMM GRP CO LTD