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网络式温湿度监控系统研究
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2011-01-05
王涛
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提出一种基于网络的温湿度监控系统方案，选取Scnsirion公司生产的数字温湿度传感器SHT75实现温湿度测量，测量精度可编程调节，控制湿度检测精度在±4%以内，温度检测精度在±0.4 ℃以内；采用模糊控制技术监控温度和湿度，减少了系统的状态切换；采用ASP.NET和AJAX及VML等技术相结合实现温湿度的网络监控，实现了Internet环境的远程监控与管理方案，以及传感器测量数据的异步传输，使系统的响应速度提高了20%，对于存在多个节点和测量频率较高的领域，这种方法更能显示其优势。
- Abstract:
- A sensor network system for monitoring temperature and moisture was presented. Fuzzy control was applied to monitoring temperature and moisture，which reduced the number of switched states. The usage of digital temperature and humidity sensor chip SHT75 produced by Scnsirion company measured temperature and humidity so accurately that the measurement error was less than 0.4℃ for temperature and ±4 percent for humidity. The temperature and moisture monitoring network system was realized with the combination of ASP.NET，AJAX and VML technology. The system design can implement long-distance monitor，control and management with Internet，asynchronous transportation of sensors’ monitor data and improvement of system response speed by 20 percent. The net scheme has much better performance than traditional way，especially in the case a lot of measure nods exist and the measure frequency is high.
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