WBGT Surveillance

Physical Control

The WBGT sensor is mounted on a linear actuator, controlled by an Arduino. The Arduino will extend the meter at a specific time in the morning and retract it into the enclosure at night. Additionally, a rain sensor is mounted outside the enclosure to retract the sensor when rain is detected and once rain is no longer being detected the Arduino extends the sensor. This system protects the WBGT sensor from rain or other moisture.

Data Acquisition

The current system uses an Extech HT30 WBGT sensor connected to a Raspberry pi zero w single board computer via an RS232 serial to USB cable. Sensor output is acquired and transmitted once per day via a 5G cellular hotspot to the data pipeline server. The server cleans and stores the data into a mysql database allowing for direct access by R/Rstudio for analysis purposes.