Real-Time Temperature Distribution Monitoring in Chinese Solar Greenhouse Using Virtual LAN

The internal air temperature of Chinese solar greenhouse (CSG) has the problem uneven spatial and temporal distribution. To determine distribution at different locations, we designed a real-time monitoring system based on virtual local area network (VLAN) estimate, including interpolation estimation module, data acquisition, transmission module. were obtained from 24 sensors, Ordinary Kriging algorithm estimated whole plane according to data. results showed that method established was fast robust. In addition, validity rate for VLAN technology deployed 2.64% higher than cellular technology. following are by using gaussian model. average relative error (ARE) mean absolute (MAE), root square (RMSE), determination coefficient (R2) −0.12 °C, 0.42 0.56 0.9964, respectively. After simple optimization number conclusions drawn. When sensors decreased 12~16, MAE, RMSE, R2 0.40~0.60 0.60~0.80 >0.99, Furthermore, in varied east–west north–south directions had strong regularity. calculation speed estimate 50~150 ms, Temperature Distribution Real-time Monitoring System (TDRMS) realized simultaneous processing, estimate.