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Reliability design method for wireless data acquisition of timber drying process

A wireless data and wood drying technology, applied in the direction of data exchange, signal transmission system, instruments, etc. through path configuration, can solve the problems of inconvenient system redeployment or update, high energy consumption, high installation and maintenance costs, and reduce Installation and maintenance costs and energy consumption, energy saving costs, and loss prevention effects

Inactive Publication Date: 2008-05-21
ZHEJIANG FORESTRY UNIVERSITY
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Problems solved by technology

The main problems are high installation and maintenance costs, high energy consumption, and inconvenient system redeployment or update

Method used

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  • Reliability design method for wireless data acquisition of timber drying process
  • Reliability design method for wireless data acquisition of timber drying process
  • Reliability design method for wireless data acquisition of timber drying process

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Embodiment Construction

[0046]In Fig. 1, the topological structure of a wireless sensor network data acquisition system in single-layer mode is described. For the monitoring of a single drying kiln, this mode can generally be used. Each cluster head in the whole kiln communicates with the control center through the wireless gateway. The figure shows that all nodes are divided into four clusters 10 (indicated by circles). The number of clusters 10 can be determined as required.

[0047] In Fig. 2, a network topology structure of a two-layer mode data acquisition system is described. This mode is suitable for the monitoring of a single kiln with a large volume and the monitoring of multiple drying kilns. When the volume is large, some cluster heads may be far away from the wireless gateway, and the use of two-layer or multi-layer mode will reduce energy consumption and improve network scalability. The figure shows that all nodes are also divided into four clusters 10-1 and 10-2 (both represented by...

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Abstract

The invention relates to a design method for wireless data collection in the wood drying process. The technical problem to be solved is that the design method provided should have the characteristics of low cost, low power consumption, convenient deployment, suitable for unattended environment monitoring, and also help to improve labor productivity. The technical solution is: a reliable design method for wireless data acquisition in the wood drying process, including: all sensor nodes and actuator nodes deployed in a single drying kiln or multiple drying kilns form a cluster tree or sub-cluster tree, cluster tree or sub-cluster The cluster tree includes at least one cluster, and each node must and can only belong to one cluster; two of the nodes serve as a working cluster head and a redundant cluster head respectively, and other nodes communicate directly with the cluster head as data collection nodes , the cluster head transmits data to the control center through the gateway, or through a higher-level cluster head or gateway; there is also an automatic re-clustering method for marginal nodes and an automatic multi-hop routing method for isolated nodes.

Description

technical field [0001] The invention relates to a wood processing process monitoring and control technology, in particular to a design method for wireless data collection in the wood drying process. Background technique [0002] The wood drying process is a complex process containing many uncertain factors. Usually, according to the selected drying standard, the temperature and humidity in the wood drying kiln should be regulated, and the moisture content index inside the wood should be controlled to meet the drying quality requirements of wood for different purposes. With the continuous development and popularization of computer application technology and network technology, using computer and network technology to control the wood drying process can play a role in ensuring the quality of wood drying, shortening the drying cycle, reducing energy consumption and improving productivity. Therefore, the research and development of computer automatic control, network remote con...

Claims

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Application Information

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IPC IPC(8): G08C17/00H04L12/28
Inventor 李光辉
Owner ZHEJIANG FORESTRY UNIVERSITY
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