49 lines
1.8 KiB
Python
Executable File
49 lines
1.8 KiB
Python
Executable File
#!./venv/bin/python3
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import syslab
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from json import dump
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from time import sleep, time
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# Defines location and name of the measurements file
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LOG_FILE = f'data/measurements/measurements_{time():.00f}.json'
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print(f"Logging to file {LOG_FILE}")
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# Set up a connection to the switchboards
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sb3192 = syslab.SwitchBoard('319-2')
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sb3193 = syslab.SwitchBoard('319-3')
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sb33012 = syslab.SwitchBoard("330-12")
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sb1172 = syslab.SwitchBoard('117-2')
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# Convenience function to
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def take_measurements():
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measurements = {
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"pcc_p": sb3192.getActivePower('Grid'),
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"pcc_q": sb3192.getReactivePower('Grid'),
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"pv319_p": sb3192.getActivePower('PV'),
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"pv319_q": sb3192.getReactivePower('PV'),
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"dumpload_p": sb3192.getActivePower('Dumpload'),
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"dumpload_q": sb3192.getReactivePower('Dumpload'),
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"gaia_p": sb33012.getActivePower('Gaia'),
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"gaia_q": sb33012.getReactivePower('Gaia'),
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"pv330_p": sb33012.getActivePower('PV_1'),
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"pv330_q": sb33012.getReactivePower('PV_1'),
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"b2b_p": sb3193.getActivePower('ABB_Sec'),
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"b2b_q": sb3193.getReactivePower('ABB_Sec'),
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"battery_p": sb1172.getActivePower('Battery'),
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"battery_q": sb1172.getReactivePower('Battery'),
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}
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return [{'unit': k, 'value': meas.value, 'time': meas.timestampMicros/1e6} for k, meas in measurements.items()]
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while True:
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measurement = take_measurements()
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# Open the output file in "append" mode which adds lines to the end
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with open(LOG_FILE, 'a') as file:
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for m in measurement:
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# Convert the dictionary m to a json string and put it
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# in the file.
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dump(m, file)
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# Write a newline for each measurement to make loading easier
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file.write('\n')
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sleep(1)
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