Web data interface

Current data is stored in three files:

• /icpa/tmp/data - as received from MCU
• /icpa/tmp/data_live - parsed by PHP, added tariff data and kWh, removed waveforms
• /ipca/tmp/pwr-2015-xxx - SQLite database consisting table 'edata' in each row there is same data as in data_live + current time (epoch)

Data is polled by web application:

• POWER tab poll:

in 5 seconds intervals from `/var/www/html/data/data.php' with parameter ?live=1

initially from `/var/www/html/data/data_5min.php' to fill power chart with current data

• PLOTS tab poll from `/var/www/html/data/data.php'

• PWR Today tab poll from `/var/www/html/data/data_pwr.php'

• Energy tab poll from `/var/www/html/data/data_ene.php'

• FREQ tab poll from `/var/www/html/data/data_freq.php'

files:

`/var/www/html/data/data_sqlite.php'

`/var/www/html/data/json_out.php'

are shared code.

One to access SQLite database created by `/icpa/bin/data_sqlite.php'. Other to output data to the browser.