Automatic weather station I. Overview automatic weather station is designed for agriculture, meteorology, ecology studies examine the development and production of multi-factor automatic weather station. Measurable conventional meteorological elements wind, wind speed, temperature, humidity, dew point, barometric pressure, rainfall, solar radiation, photosynthetically active radiation, etc., can be customized according to user needs other measuring elements. With stable performance, high precision, unattended and so on. Features: Second, the technical characteristics of a portable design, convenient installation. 2, high accuracy, without human intervention. 3, the data acquisition density can be set. 4, flexible communication. 5, energy-saving design, rechargeable battery (using a charge longer than 72 hours), suitable for field work, optional solar panels, suitable for year-round use areas without electricity. 6, in addition to the basic twelve elements of the system (air temperature, relative humidity, average wind speed and direction, the instantaneous wind speed and direction, rainfall, rainy days, when the number of light, direct solar radiation, dew point temperature, soil temperature, soil heat flux, soil moisture, leaf humidity) for direct measurement, but also can be equipped with a variety of factors to measure water evaporation. Automatic weather stations monitor the measurement data logger and time for the collection, storage, display processing. 7, scalable wireless network communication function, can be realized with wireless remote or remote telemetry data via GPRS network. Third, the basic configuration of a weather station, automatic weather station acquisition logger 2, measuring sensor 3, 4 weather observation stand, monitoring and analysis software 5, 6 sensor connection cable, data communication 7, rechargeable batteries, solar panels and brackets (available optional) four, sensor parameters: the name of the road technical parameters Resolution 1 channel temperature error -50 ~ + 80 ℃ 0.1 ℃ ± 0.1 ℃ relative humidity 1 channel 0 ~ 100% 0.1% ± 2% (≤80% time) ± 5% (> 80%) winds a path 0 ~ 360 ° 3 ° ± 3 ° Winds 1 channel 0 ~ 60m / s 0.1m / s ± (0.3 + 0.03V) m / s precipitation in a way 0-999.9 mm 0.2mm ± 0.4mm (when ≤10mm) ± 4% (> 10mm when) one-way pressure 550 ~ 1060hPa 0.1hPa ± 0.3hPa total radiated a way 0 ~ 2000W / m2 1W / m ≤5% of direct radiation a way 0 ~ 2000W / m2 1W / m ≤5% sunshine a way 0 ~ 24h 0.1h ± 0.1h photosynthetically active a way 0 ~ 500W / m2 1W / m ≤5% evaporation 1 channel 0 ~ 100mm 0.1mm ± 1.5% of carbon dioxide a way 0 ~ 2000ppm 1ppm ± 20ppm soil moisture a way 0 ~ 100% 0.1% ± 2% to 10 road temperature -50 ~ + 80 ℃ 0.1 ℃ ± 0.1 ℃ foliar moisture a way 0 (dry) to 100% (wet) ----- - less than 10% Snow depth a road 0.05 ~ 1.2m 0.01m ± (0.2% of full scale)