Light weight monitoring method for wireless sensor network topology

Abstract

The present invention discloses a lightweight monitoring method of wireless sensor network topology, and belongs to the field of wireless sensor network test. The method of the invention comprises the following steps: 1) encoding the transmitted transmission path information by node with a binary function Y=f(x, y) with hash effect for obtaining a path coding value Y; 2) transmitting the binary group information (Ni, f(0, 0)) of node by the node to the assemblage node periodically; 3) if the node receives the binary group information (Ni, Y) transmitted by other node, coding the path coding value Y with the method of step 1), and composing the obtained path coding value Y and the received source node address Ni to binary group information for transmitting to the next hop of assemblage node; 4) transmitting the received information to a central server by the assemblage node; and 5) constructing a wireless sensor network topological diagram by the central server according to the path encoding value in the received information. Compared with the prior art, the invention can increase the working time of node and data transmission capability of network.

Description

technical field [0001] The invention relates to a wireless sensor network topology monitoring method, in particular to a lightweight monitoring method of the wireless sensor network topology, which belongs to the field of wireless sensor network testing. Background technique [0002] Wireless sensor network (Wireless Sensor Network, WSN, referred to as sensor network) is composed of a large number of cheap micro-sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network system through wireless communication. Perceive, collect and process the information of the perceived object in the network coverage area, and send it to the observer. [0003] There are a large number of dynamic factors in the sensor network, such as harsh working environment, frequent interference, nodes are prone to failure due to cost constraints or failure due to energy exhaustion, wireless communication links are unstable, intermittently connected, and further cause netw...

AI Technical Summary

Problems solved by technology

[0007]The disadvantage of the first sensor network topology monitoring method is that it cannot accurately reflect the network topology structure

[0008]The disadvantage of the second sensor network topology monitoring method is that the transmitted data is large, occupying a large amount of network bandwidth and affecting network performance

[0009] Generally speaking, in order to monitor the topology of the sensor network more accurately, more information needs to be transmitted, which will inevitably consume more resources of the sensor network , will also affect the sensor network's own work

Existing methods are still unable to resolve these contradictory factors

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