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MICAz node based test channel allocation method and system

A technology for testing channels and nodes, used in wireless communication, electrical components, etc., can solve the problems of insufficient reliability, sudden drop in communication quality, and high node density, and achieve a friendly user interface, good real-time performance, and data processing. powerful effect

Inactive Publication Date: 2015-03-11
ZHEJIANG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

This will inevitably lead to the simultaneous existence of multiple wireless sensor network systems with different applications in the same area.
Due to the high node density of the wireless sensor network itself, simultaneous coverage of multiple networks is bound to interfere with each other, resulting in a sudden drop in communication quality
Single-channel allocation can no longer satisfy the status quo, and multi-channel communication technology emerges as the times require
[0003] However, most of the existing multi-channel allocation methods have not been tested on the hardware platform, and their reliability cannot be fully guaranteed.
[0004] Existing channel allocation methods are tested on general-purpose node platforms, which are mostly server-based, costly, large in size, and fixed in topology
There is currently no hardware platform specifically designed for channel allocation methods in wireless sensor networks

Method used

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  • MICAz node based test channel allocation method and system
  • MICAz node based test channel allocation method and system
  • MICAz node based test channel allocation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] The above system is used to verify the effectiveness of the channel assignment algorithm based on regret (Reget Matching based Channel Assignment, RMCA).

[0035] This large-scale test platform has 13 MICAz nodes (6 nodes are used as sending nodes, 6 nodes are used as receiving nodes, and 1 node is used as a converging node), and 1 PC (host computer).

[0036] 1. First, set the No. 1 node as a sink node as an interface to communicate with the host computer.

[0037] 2. Divide the 12 nodes into 6 groups, 2-3, 4-5, 6-7, 8-9, 10-11, 12-13, and the sending node sends data packets directly to the receiving node specified in the data stream.

[0038] 3. Randomly select 3 channels that do not interfere with each other from the 16 available channels (No. 10~25) as the channels used in the experiment. In this experiment, channels 11, 15, and 19 were selected for the experiment.

[0039]4. Channel No. 25 is selected as the public control communication channel between the aggrega...

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Abstract

The invention discloses a MICAz node based test channel allocation method and system. The MICAz node based test channel allocation system comprises a plurality of MICAz transmission nodes, MICAz receiving nodes, a MICAz convergence node and an upper computer, wherein the number of the MICAz receiving nodes is equal to that of the MICAz transmission nodes, the transmission nodes and the receiving nodes of each data stream are connected through respective wireless networks, each receiving node and the convergence node are connected through respective wireless networks, the data streams are connected with the upper computer through a serial port together with the same convergence node, and the connected uploaded data are displayed, stored and analyzed in real time. By combining distribution time slot with the retransmission mechanism, the problem of jamming of control channels in like tests is solved. Through programming modularization, parameters are separated from algorithm interfaces, and different algorithms can be introduced, so that a universal hardware test platform of a wireless sensor network channel distribution algorithm which is flexible, variable in topology, low in cost and applicable to the majority of algorithms is established.

Description

technical field [0001] The invention relates to wireless sensor network technology, in particular to a method and system for testing channel allocation based on MICAz nodes. Background technique [0002] In recent years, with the development of science and technology, applications based on wireless sensor networks continue to emerge. This will inevitably lead to the simultaneous existence of multiple wireless sensor network systems with different applications in the same area. Due to the high node density of the wireless sensor network itself, simultaneous coverage of multiple networks is bound to interfere with each other, resulting in a sudden drop in communication quality. Single-channel allocation can no longer satisfy the status quo, and multi-channel communication technology emerges as the times require. [0003] However, most of the existing multi-channel allocation methods have not been tested on the hardware platform, and their reliability cannot be fully guarante...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00
CPCH04W24/00
Inventor 朱俊杰陈积明柴博孙优贤
Owner ZHEJIANG UNIV
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