Light weight monitoring method for wireless sensor network topology

A wireless sensor and network topology technology, applied in network topology, wireless communication, data exchange network, etc., can solve problems such as large amount of data, occupying network bandwidth, and inability to accurately reflect network topology.

CN101489248AInactive Publication Date: 2009-07-22INST OF SOFTWARE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-07-22
Estimated Expiration
Not applicable · inactive patent

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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.
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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, belonging to the field of wireless sensor network testing. Background technique

[0002] The wireless sensor network (Wireless Sensor Network, WSN, sensor network for short) is composed of a large number of cheap micro sensor nodes deployed in the monitoring area. It is a multi-hop self-organizing network system formed by wireless communication. Its purpose is to cooperate Perceive, collect and process the information of the sensed object in the network coverage area, and send it to the observer.

[0003] There are a large number of dynamic factors in sensor networks, such as poor working environment, frequent interference, nodes prone to failure due to cost constraints or failure due to energy exhaustion, wireless communication links are unstable, always on and off, and further cause the ne...

Examples

Embodiment Construction

[0079] The hardware devices used in the implementation are:

[0080] 1. Node: The telosb node developed by UC Berkeley University is used. The node processor module is TI's ultra-low power MCU MSP430F1611, and the wireless communication module uses Chipcon's wireless transceiver chip CC2420. The operating system running on the node is the open source embedded operating system tinyos.

[0081] 2. Central server: PC

[0082] The node software in the implementation is developed by nesC, the compilation environment is cygwin, the central server software is developed by python, and the compilation environment is Pythonwin

[0083] First, the node program is refined to the telosb node developed by UC Berkeley University. The node processor module is TI's ultra-low power MCU MSP430F1611, and the wireless communication module uses Chipcon's wireless transceiver chip CC2420. The operating system running on the node is the open source embedded operating system tinyos.

[0084] After starting...