# An Intelligent Wireless System for Field Ecology Monitoring and Forest Fire Warning
## 4 Test and Analysis of the Microenvironment Monitoring System for Forest Ecology
### Data Analysis  
Yan'er Ridge and Hulun Buir are two typical sites for the field microclimate monitoring and forest fire warning. The mobile phone signal is unavailable in the Yan'er Ridge site, so Beidou satellite is chosen for the data communication. The mobile phone signal is good in the Hulun Buir site, so GPRS is chosen for data communication. The result of these two sites is given to show the validation of the system function. Figure 8: Local forest fire weather grade under the forest microclimate. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Location** & **Communication** & **Quantity of Data** & **Quantity of data Correctly** & **Correct Rate /\%** \\  & **Mode** & **Acquired /Frame** & **Transmitted/Frame** & **Correct Rate /\%** \\ \hline Yan’er Ridge & Beidou & 13,247 & 13,058 & 98.57 \\ Wangjing & Beidou & 13,247 & 13,172 & 99.43 \\ Tower & Beidou & 13,247 & 13,194 & 99.59 \\ Zhai’er Yu & Beidou & 13,247 & 13,094 & 98.85 \\ Hulun Buir & GPRS & 13,247 & 13,232 & 99.89 \\ Zhalantun & GPRS & 13,247 & 13,235 & 99.90 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: The communication result of forest microclimate station. As shown in Figure 13, continuous precipitation occurred on March 20, 23, and 24. As shown in Figure 14, the moisture delay of soil at depths of 10 and 40 cm rose rapidly. The index of forest fire protection decreased; the soil moisture decreased slowly after the precipitation stopped. When the moderate rain lasted for a brief period on May 22, the moisture of the soil at a depth of 10 cm increased, and the fire protection index decreased. The moisture of the soil at a depth of 40 cm remained unchanged as the sensor was deeply buried and hardly affected by the short-term precipitation that occurred on May 22. The moisture of the soil at depths of 10 and 40 cm remained unchanged on April 19 and May 30 due to little precipitation. Based on a comparison between the grade of fire weather in the Yan'er Ridge region in Figure 15 and the variation of precipitation in Figure 14, the fire weather was Grade IV or Grade V in the case of no precipitation in the whole fire protection period, suggesting higher risks of forest fire occurrence and spread. The fire weather was Grade II on April 19, May 22, and May 30 when precipitation lasted  
Figure 14: The curve of the forest fire weather grade in Yan’er Ridge. Figure 12: The curves of soil water content in 10 and 40 cm depth in Yan’er Ridge. Figure 13: The curve of rainfall in Yan’er Ridge. for a brief period. From March 20 to 24, when precipitation lasted continuously, the fire weather was Grade I or Grade II, suggesting lower risks of forest fire occurrence and spread and effectively forecasting the fire weather grade in this region. The data statements of consecutive days from 31 March 2018 to 30 June 2018 in Hulun Buir were downloaded from the cloud server. The variation curves for wind speed, air moisture, air temperature, soil moisture at depths of 10 and 40 cm, and precipitation related to forest fire protection are shown in Figures 15-19. The grades of fire weather in the Hulun Buir computed by the system are shown in Figure 20.  
Figure 16: The curve of the air humidity in Hulun Buir. Figure 17: The curve of the air temperature in Hulun Buir. Figure 15: The curve of the wind speed in Hulun Buir. As shown in Figure 19, continuous precipitation occurred on April 15, June 6, and June 16. In Figure 18, the moisture delay of soil at depths of 10 and 40 cm rose rapidly; the index of forest fire protection was decreasing; the soil moisture decreased slowly after the precipitation stopped. Based on a comparison between the grade of fire weather in the Hulun Buir in Figure 20 and the variation of precipitation in Figure 19, the fire weather was Grade III, IV, or V in the case of no precipitation, suggesting higher risks of forest fire occurrence and spread.