基于改进肖维涅算法的温室环境数据采集
农业温室采集温湿度数据时，有线网络传输数据存在布线复杂、节点移动困难等缺点，采用Zigbee无线传感器网络传输提取的数据信息可以有效解决上述问题。受电磁干扰、传输信道拥塞等不利因素影响，采用Zigbee无线传感器网络监测的数据会出现不准确的情况，所以剔除误差数据成为关键。该文在温室数据采集系统的计算机软件里加入了针对误差数据剔除的改进肖维涅算法。改进肖维涅算法将误差数据剔除掉，把准确的数据存入数据库，方便系统分析温室环境现状。该文对改进肖维涅算法系统的误差数据处理时间进行了分析，与传统肖维涅算法相比，从主机发布采集命令到显示1组数据的处理结果，改进算法节省了5 s的时间。现场试验结果表明，改进...
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| Published in | 农业工程学报 Vol. 31; no. 5; pp. 212 - 217 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
佳木斯大学机械工程学院，佳木斯154007
2015
东北农业大学电气与信息学院,哈尔滨,150030%东北农业大学电气与信息学院，哈尔滨150030 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2015.05.030 |
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| Summary: | 农业温室采集温湿度数据时，有线网络传输数据存在布线复杂、节点移动困难等缺点，采用Zigbee无线传感器网络传输提取的数据信息可以有效解决上述问题。受电磁干扰、传输信道拥塞等不利因素影响，采用Zigbee无线传感器网络监测的数据会出现不准确的情况，所以剔除误差数据成为关键。该文在温室数据采集系统的计算机软件里加入了针对误差数据剔除的改进肖维涅算法。改进肖维涅算法将误差数据剔除掉，把准确的数据存入数据库，方便系统分析温室环境现状。该文对改进肖维涅算法系统的误差数据处理时间进行了分析，与传统肖维涅算法相比，从主机发布采集命令到显示1组数据的处理结果，改进算法节省了5 s的时间。现场试验结果表明，改进肖维涅算法对采集到的数据进行处理后，数据分布更集中，得到的温室环境数据更加准确快速。 |
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| Bibliography: | greenhouses;data acquisition;algorithms;temperature;humidity;improved Chauvenet’s criterion 11-2047/S When agricultural greenhouse collects temperature and humidity data, cable network transmit data lead to wiring complexity and difficulties of moving nodes. Zigbee wireless sensor network transmit data can effectively solve the above problems. Zigbee has the virtue of ad hoc network, low power consumption, equipment layout flexibility, good stability and so on. The core components in greenhouse are consisted of terminal nodes, route nodes and coordinator node. Terminal nodes placed in greenhouse continuously send out request signals to join the network. All the terminal nodes receiving a response signal from the coordinator node can join the network. Terminal nodes collect temperature and humidity data and transmit these data to coordinator node. Coordinator node is the core of Zigbee and is placed in the geometric center of the greenhouse. It is responsible for the establishment of network and can communicate |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2015.05.030 |