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nilm_raw.py
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nilm_raw.py
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"""
Codestyle according to PyQt6 not PEP8
"""
import sys
from functools import partial
from typing import Dict, Tuple
import numpy as np
import zmq
from PyQt6.QtCore import QRunnable, pyqtSlot
from PyQt6.QtCore import QThreadPool
from PyQt6.QtGui import QFont
from PyQt6.QtWidgets import QApplication, QTabWidget, QGridLayout, QVBoxLayout, QWidget
from pyqtgraph import PlotWidget, PlotItem, ViewBox, mkPen, AxisItem, DateAxisItem
from pulsed_power_ml.data.signal_communicate import SignalCommunicate
from src.pulsed_power_ml.data.buffers.mains_freq_buffer import MainsFreqBuffer
from src.pulsed_power_ml.data.buffers.raw_buffer import RawBuffer
from src.pulsed_power_ml.data.zmq_connection_info import ZMQConnectionInfo
class Worker(QRunnable):
"""
Worker thread
Inherits from QRunnable to handle worker thread setup, signals and wrap-up.
"""
def __init__(self, conn_info):
"""
Parameters
----------
conn_info : ZMQConnectionInfo
"""
super().__init__()
self.conn_info = conn_info
@pyqtSlot()
def run(self):
"""
Listen to ZMQ publisher send data to databuffer
"""
context = zmq.Context()
poller = zmq.Poller()
subscriber = context.socket(zmq.SUB)
subscriber.connect(f'{self.conn_info.connection_string}:{self.conn_info.port}')
subscriber.subscribe(self.conn_info.topic)
poller.register(subscriber, zmq.POLLIN)
buffer = self.conn_info.buffer_object()
while True:
message = subscriber.recv_multipart()
msg = np.frombuffer(message[0], self.conn_info.data_type)
parsed_msg = np.array_split(msg, len(msg) // self.conn_info.chan_cnt)
buffer.update_data(parsed_msg)
if (buffer.data is not None) & buffer.do_update_vis:
self.conn_info.processing_function.emit(buffer.data)
print('Stopping ZMQClient.')
subscriber.close()
context.term()
class NonIntrusiveLoadMonitoringRaw(QWidget):
def __init__(self,
raw_ax_lims=(-400, 400, -3, 3),
mf_offset=0.05,
*args, **kwargs):
super().__init__(*args, **kwargs)
self.threadManager = QThreadPool()
self.setWindowTitle('Non-Intrusive Load Monitoring - Raw data')
self.resize(1200, 800)
# Create a top-level layout
layout = QVBoxLayout()
self.setLayout(layout)
# Plot information
invTickFont = QFont()
invTickFont.setPixelSize(1)
visTickFont = QFont()
visTickFont.setPixelSize(20)
self.plotOptions = {
'background': 'w',
'foreground': 'k',
'invTickFont': invTickFont,
'visTickFont': visTickFont,
'axisPen': partial(mkPen, width=1),
'linePen': partial(mkPen, width=1)
}
self.plotHelper = partial(PlotWidget,
background=self.plotOptions['background'],
foreground=self.plotOptions['foreground'])
self.fontSize = '15pt'
self.colors = {
'time': '#000000',
'U': '#025b94',
'I': '#c4380d',
'mainsFreq': '#025b94'
}
self.plotData = {
'raw': self._createRawPlot('RAW DATA', axis_limits=raw_ax_lims),
'mainsFreq': self._createMainsFreqPlot('MAINS FREQUENCY', offset=mf_offset),
}
tabs = QTabWidget()
tabs.addTab(self.rawDataUI(), 'Load Monitoring')
layout.addWidget(tabs)
self.signalComm = SignalCommunicate()
self.connectSignals()
self.getData()
def connectSignals(self):
"""Connect signals for data update"""
self.signalComm.requestRawGraphUpdate.connect(
partial(self.updateDoubleYAxisPlots, plotName='raw', columnPlotMap={'U': 'uPlot', 'I': 'iPlot'})
)
self.signalComm.requestMainsFreqGraphUpdate.connect(
partial(self.updateSingleYAxisPlots, plotName='mainsFreq', columnPlotMap={'mainsFreq': 'mfPlot'})
)
def getData(self):
"""Start workers with ZMQ listeners"""
zmqConfig = {
'raw': ZMQConnectionInfo(
connection_string='tcp://10.0.0.2',
port=5006,
topic='',
chan_cnt=2,
data_type=np.float32,
buffer_object=partial(RawBuffer, update_rate=50, data_points_to_show=12_000),
processing_function=self.signalComm.requestRawGraphUpdate
),
'mainsFreq': ZMQConnectionInfo(
connection_string='tcp://10.0.0.2',
port=5009,
topic='',
chan_cnt=1,
data_type=np.float32,
buffer_object=partial(MainsFreqBuffer, update_rate=50, data_points_to_show=1_000),
processing_function=self.signalComm.requestMainsFreqGraphUpdate
),
}
for v in zmqConfig.values():
worker = Worker(v)
self.threadManager.start(worker)
def rawDataUI(self):
"""Create the raw data interface."""
generalTab = QWidget()
layout = QGridLayout()
layout.addWidget(self.plotData['raw']['plotWidget'], 0, 0)
layout.addWidget(self.plotData['mainsFreq']['plotWidget'], 1, 0)
generalTab.setLayout(layout)
return generalTab
def _createRawPlot(self, title, axis_limits):
"""
Create the layout for the raw plot
Parameters
----------
title : str
axis_limits : Tuple[int]
Limits for the axis in order [x_min, x_max, y_min, y_max]
Returns
-------
Dict
Info about the plot
"""
uiRaw = PlotItem(name='rawPlot', title=title)
plotWidget = self.plotHelper(plotItem=uiRaw)
uVBox = uiRaw.getViewBox()
iVBox = ViewBox()
# LEFT y-axis
uiRaw.getAxis('left').setTickFont(self.plotOptions['visTickFont'])
uiRaw.getAxis('left').setPen(self.plotOptions['axisPen'](color=self.colors['U']))
uiRaw.setLabel('left', 'U', units='V', color=self.colors['U'], **{'font-size': self.fontSize})
# x-axis
uiRaw.getAxis('bottom').setTickFont(self.plotOptions['visTickFont'])
uiRaw.getAxis('bottom').setPen(self.plotOptions['axisPen'](color=self.colors['time']))
uiRaw.setLabel('bottom', 'time', units='ms', color=self.colors['time'], **{'font-size': self.fontSize})
# RIGHT y-axis
yRight = AxisItem('right')
yRight.setTickFont(self.plotOptions['visTickFont'])
yRight.setPen(self.plotOptions['axisPen'](color=self.colors['I']))
yRight.setLabel('I', units='A', color=self.colors['I'], **{'font-size': self.fontSize})
uiRaw.layout.addItem(yRight, 2, 2)
uiRaw.scene().addItem(iVBox)
# Link right y-axis to ViewBox for I values
yRight.linkToView(iVBox)
# Link x-axis for both Views
iVBox.setXLink(uiRaw)
# Set Y axis ranges
uVBox.setYRange(min=axis_limits[0], max=axis_limits[1])
iVBox.setYRange(min=axis_limits[2], max=axis_limits[3])
# Create plots
uPlot = uiRaw.plot(pen=self.plotOptions['linePen'](self.colors['U']))
iPlot = uiRaw.plot(pen=self.plotOptions['linePen'](self.colors['I']))
# Downsample data
uPlot.setDownsampling(auto=True, method='mean')
iPlot.setDownsampling(auto=True, method='mean')
# Add plots to ViewBox
uVBox.addItem(uPlot)
iVBox.addItem(iPlot)
return {
'plotWidget': plotWidget,
'y2VBox': iVBox,
'uPlot': uPlot,
'iPlot': iPlot
}
def _createMainsFreqPlot(self, title, offset):
"""
Create the layout for the mains frequency plot
Parameters
----------
title : str
offset : float
Returns
-------
Dict
Info about the plot
"""
mainsFreq = PlotItem(name='mainsFreqPlot', title=title,
labels={'left': {'axis': 'left'}, 'bottom': {'axis': 'bottom'}},
axisItems={'bottom': DateAxisItem(orientation='bottom')})
plotWidget = self.plotHelper(plotItem=mainsFreq)
mfVBox = mainsFreq.getViewBox()
# LEFT y-axis
mainsFreq.getAxis('left').setTickFont(self.plotOptions['visTickFont'])
mainsFreq.getAxis('left').setPen(self.plotOptions['axisPen'](color=self.colors['mainsFreq']))
mainsFreq.setLabel('left', 'MainsFreq', units='Hz', color=self.colors['mainsFreq'],
**{'font-size': self.fontSize})
mfVBox.setYRange(min=50 - offset, max=50 + offset)
# x-axis
mainsFreq.getAxis('bottom').setTickFont(self.plotOptions['visTickFont'])
mainsFreq.getAxis('bottom').setPen(self.plotOptions['axisPen'](color=self.colors['time']))
mainsFreq.setLabel('bottom', 'time', units='s', color=self.colors['time'], **{'font-size': self.fontSize})
# Create plots
mfPlot = mainsFreq.plot(pen=self.plotOptions['linePen'](self.colors['mainsFreq']))
# Downsample data
mfPlot.setDownsampling(auto=True, method='mean')
# Add plots to ViewBox
mfVBox.addItem(mfPlot)
return {
'plotWidget': plotWidget,
'mfPlot': mfPlot
}
def updateDoubleYAxisPlots(self, data, plotName, columnPlotMap):
"""
Updating method for all plots with two Y axes.
Parameters
----------
data : pd.DataFrame
plotName : str
columnPlotMap : Dict[str, str]
"""
def u():
uVBox = self.plotData[plotName]['plotWidget'].getPlotItem().getViewBox()
iVBox = self.plotData[plotName]['y2VBox']
iVBox.setGeometry(uVBox.sceneBoundingRect())
iVBox.linkedViewChanged(uVBox, iVBox.XAxis)
u()
# self.plotData[plotName]['plotWidget'].getPlotItem().getViewBox() \
# .sigResized.connect(u)
for col, plot in columnPlotMap.items():
self.plotData[plotName][plot].setData(x=data.index, y=data[col].tolist())
def updateSingleYAxisPlots(self, data, plotName, columnPlotMap):
"""
Updating method for all plots with one Y axis.
Parameters
----------
data : pd.DataFrame
plotName : str
columnPlotMap : Dict[str, str]
"""
for col, plot in columnPlotMap.items():
self.plotData[plotName][plot].setData(x=data.index, y=data[col].tolist())
if __name__ == '__main__':
app = QApplication(sys.argv)
window = NonIntrusiveLoadMonitoringRaw(
raw_ax_lims=(-400, 400, -3, 3),
mf_offset=0.05
)
window.show()
sys.exit(app.exec())