43
Figure 31 Select historical data for the specified month
Create a data download link for one month in the past 5 years; it will be available for
download for 120 seconds. As shown in Figure 32, the real-time value (SensorData)
and moving-average value (avgSensorData) of the whole month of 2020-05 are
available for download, and the countdown is 120 seconds.
Figure 32 Historical data download
There are two types of data display: environmental sensor and indoor air quality (IAQ)
sensor, which can be selected to be displayed/not displayed. If the UNOnext does not
have a specific sensor installed, or there is no related sensor data for the selected
time period, it will not be displayed.
Historical data of the environmental sensor: Including temperature, humidity and
ambient light.
Historical data of the air quality sensor: Contains carbon dioxide (CO
2
), carbon
monoxide (CO), formaldehyde (HCHO), total volatile organic compounds (TVOC),
ozone (O
3
), PM10, PM2.5. The historical air quality data chart will also display the
moving average calculated in accordance with Taiwanese regulations and the
operation status of the ventilation equipment at that time. For the calculation of
moving average, see Table 11; the number of fan stages (FAN SPEED) is 0 to 3: 0
