Page 13 - 2020-2021 School Newsletter Issue 9

This alarm system is to remind workers to consume
water regularly. We use programmes to calculate
the amount of water that a worker should consume
within a particular time according to the adequate
water intake per day for adults. If a worker does not
drink water for a long period of time, our system will
remind the worker.

The adequate water intake per day for adults is as
follows:
Men 2500 mL/d
Women 2000 mL/d
Pregnant women 2300 mL/d Water Dispenser
Lactating women 2600-2700 mL/d

For male and female workers, their suggested amount
of water intake per day would be 2500mL and
2000mL respectively.

The LED colour will change according to the
following formula:

where w is the amount of water consumed on that
day, and h and m are the number of hours and Wristband
minutes the worker staying in the office.

Male Female Colour
XmL > 394mL XmL > 335mL Red
194mL≤XmL≤394mL 135mL≤XmL≤335mL Green
194mL≤XmL 135mL≤XmL Yellow

The range of amount of water required per hour
and the corresponding colour

St. Mark's School 13