Table 1 Technical specifications of greenhouse Sensors.
Number | Measurement Parameters | Resolution | Measurement Accuracy | Measurement Range | Collection Frequency |
|---|---|---|---|---|---|
1 | Air Temperature(T, ℃) | 0.01℃ | ± 0.2℃ | −30 ~ 70℃ | 10 min |
2 | Air Humidity(RH, %) | 0.01%RH | ± 2%RH | 0 ~ 100%RH | 10 min |
3 | Soil Temperature(Ts, ℃) | 0.01℃ | ± 0.5℃ | −30 ~ 70℃ | 10 min |
4 | Light Intensity (E, Lux) | 1 lx | ± 5% | 0 ~ 200,000 lx | 10 min |
5 | CO2 Concentration(ppm) | 1 ppm | ± 50ppm | 0 ~ 5000ppm | 10 min |
6 | Cumulative Solar Radiation (Rn, Kj·m−2·h−1) | 1 W/m2 | Annual Change Rate ± 2% | 0 ~ 2000 W/m2 | 10 min |
7 | Visible Light Image | 5200*3900 PPI | – | – | 2 h |
