User guide

16
Past time
Temperature
Temp Min
Temp Max
0
Temp Max and Temp Min are thresholds used by the temperature monitoring application
to trigger some actions when they are crossed (see next chapter).
Temperature Monitoring
In addition to displaying the history of values on the screen, our application also collects
all data in an internal database stored on Palm. Periodically, the content of the database is
uploaded to an Internet server using the network capabilities of Palm (see next chapter).
Due to a lack of available resources on Palm (there is only one UART unit), collection of
temperature values needs to be interrupted during network transmissions and resumed
afterwards.
Integration
We grouped the functions handling specific actions into libraries:
IR Sampling library - functions dealing with the infrared communication/data sampling.
They provide:
• Initialize IR communication
• Get sample data
• Sort data
• Compute median value
• Verify data validity