Jan
35bea6bdd1
Graceful Shutdown Sequence:
Stop all measurement threads first
Wait for them to complete
Then cleanup the USB session
Error Handling:
Add more specific exception handling for USB operations
Consider adding retries for non-critical operations
Logging:
Replace print statements with proper logging
Consider logging to a file for debugging purposes
853 lines
33 KiB
Python
853 lines
33 KiB
Python
# -*- coding: utf-8 -*-
|
|
import os
|
|
import time
|
|
import csv
|
|
import threading
|
|
from datetime import datetime
|
|
import numpy as np
|
|
from collections import deque
|
|
|
|
# Warnungen unterdrücken
|
|
os.environ['QT_LOGGING_RULES'] = 'qt.qpa.*=false'
|
|
os.environ['LIBUSB_DEBUG'] = '0'
|
|
|
|
from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
|
|
QGridLayout, QLabel, QPushButton, QLineEdit, QFrame,
|
|
QCheckBox, QMessageBox, QFileDialog)
|
|
from PyQt5.QtCore import Qt, QTimer, pyqtSignal, pyqtSlot, QObject, QThread
|
|
from PyQt5.QtGui import QColor, QPalette
|
|
|
|
import pysmu
|
|
import matplotlib
|
|
matplotlib.use('Qt5Agg')
|
|
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
|
|
from matplotlib.figure import Figure
|
|
|
|
class DeviceDisconnectedError(Exception):
|
|
pass
|
|
|
|
class MeasurementThread(QThread):
|
|
update_signal = pyqtSignal(float, float, float)
|
|
error_signal = pyqtSignal(str)
|
|
|
|
def __init__(self, device, interval=0.1):
|
|
super().__init__()
|
|
self.device = device
|
|
self.interval = interval
|
|
self._running = False
|
|
self.filter_window_size = 10
|
|
self.start_time = time.time()
|
|
|
|
def run(self):
|
|
self._running = True
|
|
voltage_window = []
|
|
current_window = []
|
|
|
|
while self._running:
|
|
try:
|
|
samples = self.device.read(self.filter_window_size, 500, True)
|
|
if not samples:
|
|
raise DeviceDisconnectedError("Keine Samples empfangen")
|
|
|
|
raw_voltage = np.mean([s[1][0] for s in samples])
|
|
raw_current = np.mean([s[0][1] for s in samples])
|
|
current_time = time.time() - self.start_time
|
|
|
|
# Gleitender Mittelwertfilter
|
|
voltage_window.append(raw_voltage)
|
|
current_window.append(raw_current)
|
|
|
|
if len(voltage_window) > self.filter_window_size:
|
|
voltage_window.pop(0)
|
|
current_window.pop(0)
|
|
|
|
voltage = np.mean(voltage_window)
|
|
current = np.mean(current_window)
|
|
|
|
self.update_signal.emit(voltage, current, current_time)
|
|
time.sleep(max(0.05, self.interval))
|
|
|
|
except Exception as e:
|
|
self.error_signal.emit(str(e))
|
|
break
|
|
|
|
def stop(self):
|
|
self._running = False
|
|
if self.isRunning():
|
|
self.quit()
|
|
if not self.wait(500): # Wait up to 500ms for clean exit
|
|
print("Warning: Thread didn't exit cleanly, terminating")
|
|
self.terminate()
|
|
|
|
class BatteryTester(QMainWindow):
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
# Initialisierung aller Attribute
|
|
self.time_data = deque()
|
|
self.voltage_data = deque()
|
|
self.current_data = deque()
|
|
self.phase_data = deque()
|
|
|
|
# Testvariablen
|
|
self.test_phase = "Bereit"
|
|
self.capacity_ah = 0.0
|
|
self.charge_capacity = 0.0
|
|
self.coulomb_efficiency = 0.0
|
|
self.cycle_count = 0
|
|
|
|
# Farbschema
|
|
self.bg_color = QColor(46, 52, 64)
|
|
self.fg_color = QColor(216, 222, 233)
|
|
self.accent_color = QColor(94, 129, 172)
|
|
self.warning_color = QColor(191, 97, 106)
|
|
self.success_color = QColor(163, 190, 140)
|
|
|
|
# Gerätestatus
|
|
self.session_active = False
|
|
self.measuring = False
|
|
self.test_running = False
|
|
self.continuous_mode = False
|
|
self.request_stop = False
|
|
self.interval = 0.1
|
|
self.log_dir = os.path.expanduser("~/adalm1000/logs")
|
|
os.makedirs(self.log_dir, exist_ok=True)
|
|
|
|
# Thread-Management
|
|
self.measurement_thread = None
|
|
self.test_thread = None
|
|
|
|
# UI initialisieren
|
|
self.setup_ui()
|
|
|
|
# Gerät verzögert initialisieren
|
|
QTimer.singleShot(100, self.safe_init_device)
|
|
|
|
def setup_ui(self):
|
|
"""Konfiguriert die Benutzeroberfläche"""
|
|
self.setWindowTitle("ADALM1000 - Batteriekapazitätstester (CC-Test)")
|
|
self.resize(1000, 800)
|
|
self.setMinimumSize(800, 700)
|
|
|
|
# Hintergrundfarbe setzen
|
|
palette = self.palette()
|
|
palette.setColor(QPalette.Window, self.bg_color)
|
|
palette.setColor(QPalette.WindowText, self.fg_color)
|
|
palette.setColor(QPalette.Base, QColor(59, 66, 82))
|
|
palette.setColor(QPalette.Text, self.fg_color)
|
|
palette.setColor(QPalette.Button, self.accent_color)
|
|
palette.setColor(QPalette.ButtonText, self.fg_color)
|
|
self.setPalette(palette)
|
|
|
|
# Hauptwidget und Layout
|
|
self.central_widget = QWidget()
|
|
self.setCentralWidget(self.central_widget)
|
|
self.main_layout = QVBoxLayout(self.central_widget)
|
|
self.main_layout.setContentsMargins(10, 10, 10, 10)
|
|
self.main_layout.setSpacing(10)
|
|
|
|
# Kopfbereich
|
|
header_frame = QWidget()
|
|
header_layout = QHBoxLayout(header_frame)
|
|
header_layout.setContentsMargins(0, 0, 0, 0)
|
|
|
|
self.title_label = QLabel("ADALM1000 Batteriekapazitätstester (CC-Test)")
|
|
self.title_label.setStyleSheet(f"font-size: 16px; font-weight: bold; color: {self.accent_color.name()};")
|
|
header_layout.addWidget(self.title_label, 1)
|
|
|
|
# Statusindikator
|
|
self.connection_label = QLabel("Getrennt")
|
|
header_layout.addWidget(self.connection_label)
|
|
|
|
self.status_light = QLabel()
|
|
self.status_light.setFixedSize(20, 20)
|
|
self.status_light.setStyleSheet("background-color: red; border-radius: 10px;")
|
|
header_layout.addWidget(self.status_light)
|
|
|
|
# Verbinden-Button
|
|
self.reconnect_btn = QPushButton("Verbinden")
|
|
self.reconnect_btn.clicked.connect(self.reconnect_device)
|
|
header_layout.addWidget(self.reconnect_btn)
|
|
|
|
self.main_layout.addWidget(header_frame)
|
|
|
|
# Messanzeige
|
|
display_frame = QFrame()
|
|
display_frame.setFrameShape(QFrame.StyledPanel)
|
|
display_layout = QGridLayout(display_frame)
|
|
|
|
measurement_labels = [
|
|
("Spannung (V)", "V"),
|
|
("Strom (A)", "A"),
|
|
("Testphase", ""),
|
|
("Verstrichene Zeit", "s"),
|
|
("Entladekapazität", "Ah"),
|
|
("Ladekapazität", "Ah"),
|
|
("Coulomb-Eff.", "%"),
|
|
("Zykluszählung", ""),
|
|
]
|
|
|
|
for i, (label, unit) in enumerate(measurement_labels):
|
|
row = i // 2
|
|
col = (i % 2) * 2
|
|
|
|
lbl = QLabel(f"{label}:")
|
|
lbl.setStyleSheet("font-size: 11px;")
|
|
display_layout.addWidget(lbl, row, col)
|
|
|
|
value_label = QLabel("0.000")
|
|
value_label.setStyleSheet("font-size: 12px; font-weight: bold;")
|
|
display_layout.addWidget(value_label, row, col + 1)
|
|
|
|
if unit:
|
|
unit_label = QLabel(unit)
|
|
display_layout.addWidget(unit_label, row, col + 2)
|
|
|
|
if i == 0:
|
|
self.voltage_label = value_label
|
|
elif i == 1:
|
|
self.current_label = value_label
|
|
elif i == 2:
|
|
self.phase_label = value_label
|
|
self.phase_label.setText(self.test_phase)
|
|
elif i == 3:
|
|
self.time_label = value_label
|
|
elif i == 4:
|
|
self.capacity_label = value_label
|
|
elif i == 5:
|
|
self.charge_capacity_label = value_label
|
|
elif i == 6:
|
|
self.efficiency_label = value_label
|
|
elif i == 7:
|
|
self.cycle_label = value_label
|
|
|
|
self.main_layout.addWidget(display_frame)
|
|
|
|
# Steuerbereich
|
|
controls_frame = QWidget()
|
|
controls_layout = QHBoxLayout(controls_frame)
|
|
controls_layout.setContentsMargins(0, 0, 0, 0)
|
|
|
|
# Parameterrahmen
|
|
params_frame = QFrame()
|
|
params_frame.setFrameShape(QFrame.StyledPanel)
|
|
params_layout = QGridLayout(params_frame)
|
|
|
|
# Batteriekapazität
|
|
params_layout.addWidget(QLabel("Batteriekapazität (Ah):"), 0, 0)
|
|
self.capacity_input = QLineEdit("0.2")
|
|
self.capacity_input.setFixedWidth(80)
|
|
params_layout.addWidget(self.capacity_input, 0, 1)
|
|
|
|
# Lade-Endspannung
|
|
params_layout.addWidget(QLabel("Lade-Endspannung (V):"), 1, 0)
|
|
self.charge_cutoff_input = QLineEdit("1.43")
|
|
self.charge_cutoff_input.setFixedWidth(80)
|
|
params_layout.addWidget(self.charge_cutoff_input, 1, 1)
|
|
|
|
# Entlade-Endspannung
|
|
params_layout.addWidget(QLabel("Entlade-Endspannung (V):"), 2, 0)
|
|
self.discharge_cutoff_input = QLineEdit("0.9")
|
|
self.discharge_cutoff_input.setFixedWidth(80)
|
|
params_layout.addWidget(self.discharge_cutoff_input, 2, 1)
|
|
|
|
# Ruhezeit
|
|
params_layout.addWidget(QLabel("Ruhezeit (Stunden):"), 3, 0)
|
|
self.rest_time_input = QLineEdit("0.25")
|
|
self.rest_time_input.setFixedWidth(80)
|
|
params_layout.addWidget(self.rest_time_input, 3, 1)
|
|
|
|
# C-Rate für Test
|
|
params_layout.addWidget(QLabel("Test-C-Rate:"), 0, 2)
|
|
self.c_rate_input = QLineEdit("0.1")
|
|
self.c_rate_input.setFixedWidth(60)
|
|
params_layout.addWidget(self.c_rate_input, 0, 3)
|
|
params_layout.addWidget(QLabel("(z.B. 0.2 für C/5)"), 0, 4)
|
|
|
|
controls_layout.addWidget(params_frame, 1)
|
|
|
|
# Button-Bereich
|
|
button_frame = QWidget()
|
|
button_layout = QVBoxLayout(button_frame)
|
|
button_layout.setContentsMargins(0, 0, 0, 0)
|
|
|
|
self.start_button = QPushButton("TEST STARTEN")
|
|
self.start_button.clicked.connect(self.start_test)
|
|
self.start_button.setStyleSheet(f"background-color: {self.accent_color.name()}; font-weight: bold;")
|
|
self.start_button.setEnabled(False)
|
|
button_layout.addWidget(self.start_button)
|
|
|
|
self.stop_button = QPushButton("TEST STOPPEN")
|
|
self.stop_button.clicked.connect(self.stop_test)
|
|
self.stop_button.setStyleSheet(f"background-color: {self.warning_color.name()}; font-weight: bold;")
|
|
self.stop_button.setEnabled(False)
|
|
button_layout.addWidget(self.stop_button)
|
|
|
|
# Kontinuierlicher Modus
|
|
self.continuous_check = QCheckBox("Kontinuierlicher Modus")
|
|
self.continuous_check.setChecked(True)
|
|
button_layout.addWidget(self.continuous_check)
|
|
|
|
controls_layout.addWidget(button_frame)
|
|
self.main_layout.addWidget(controls_frame)
|
|
|
|
# Plotbereich
|
|
self.setup_plot()
|
|
self.main_layout.addWidget(self.plot_widget, 1)
|
|
|
|
# Statusleiste
|
|
self.status_bar = QLabel("Bereit")
|
|
self.status_bar.setStyleSheet("font-size: 10px; padding: 5px;")
|
|
self.main_layout.addWidget(self.status_bar)
|
|
|
|
def setup_plot(self):
|
|
"""Konfiguriert den Matplotlib-Plot"""
|
|
self.plot_widget = QWidget()
|
|
plot_layout = QVBoxLayout(self.plot_widget)
|
|
|
|
self.fig = Figure(figsize=(8, 5), dpi=100, facecolor='#2E3440')
|
|
self.fig.subplots_adjust(left=0.1, right=0.88, top=0.9, bottom=0.15)
|
|
self.ax = self.fig.add_subplot(111)
|
|
self.ax.set_facecolor('#3B4252')
|
|
|
|
# Initiale Spannungsbereich
|
|
voltage_padding = 0.2
|
|
min_voltage = max(0, float(self.discharge_cutoff_input.text()) - voltage_padding)
|
|
max_voltage = float(self.charge_cutoff_input.text()) + voltage_padding
|
|
self.ax.set_ylim(min_voltage, max_voltage)
|
|
|
|
# Spannungsplot
|
|
self.line_voltage, = self.ax.plot([], [], color='#00BFFF', label='Spannung (V)', linewidth=2)
|
|
self.ax.set_ylabel("Spannung (V)", color='#00BFFF')
|
|
self.ax.tick_params(axis='y', labelcolor='#00BFFF')
|
|
|
|
# Stromplot (rechte Achse)
|
|
self.ax2 = self.ax.twinx()
|
|
current_padding = 0.05
|
|
test_current = float(self.c_rate_input.text()) * float(self.capacity_input.text())
|
|
max_current = test_current * 1.5
|
|
self.ax2.set_ylim(-max_current - current_padding, max_current + current_padding)
|
|
|
|
self.line_current, = self.ax2.plot([], [], 'r-', label='Strom (A)', linewidth=2)
|
|
self.ax2.set_ylabel("Strom (A)", color='r')
|
|
self.ax2.tick_params(axis='y', labelcolor='r')
|
|
|
|
self.ax.set_xlabel('Zeit (s)', color=self.fg_color.name())
|
|
self.ax.set_title('Batterietest (CC)', color=self.fg_color.name())
|
|
self.ax.tick_params(axis='x', colors=self.fg_color.name())
|
|
self.ax.grid(True, color='#4C566A')
|
|
|
|
# Legenden positionieren
|
|
self.ax.legend(loc='upper left', bbox_to_anchor=(0.01, 0.99))
|
|
self.ax2.legend(loc='upper right', bbox_to_anchor=(0.99, 0.99))
|
|
|
|
# Plot einbetten
|
|
self.canvas = FigureCanvas(self.fig)
|
|
plot_layout.addWidget(self.canvas)
|
|
|
|
def safe_init_device(self):
|
|
"""Sichere Geräteinitialisierung mit Fehlerbehandlung"""
|
|
try:
|
|
self.init_device()
|
|
except Exception as e:
|
|
self.handle_device_error(str(e))
|
|
|
|
def init_device(self):
|
|
"""Initialisiert das ADALM1000-Gerät"""
|
|
# Temporarily enable USB debugging
|
|
os.environ['LIBUSB_DEBUG'] = '3' # Set to 0 in production
|
|
self.cleanup_device()
|
|
|
|
try:
|
|
# Verzögerung zur Vermeidung von "Device busy" Fehlern
|
|
time.sleep(1.5)
|
|
|
|
self.session = pysmu.Session(ignore_dataflow=True, queue_size=10000)
|
|
if not self.session.devices:
|
|
raise Exception("Kein ADALM1000 erkannt - Verbindung prüfen")
|
|
|
|
self.dev = self.session.devices[0]
|
|
# Kanäle zurücksetzen
|
|
self.dev.channels['A'].mode = pysmu.Mode.HI_Z
|
|
self.dev.channels['B'].mode = pysmu.Mode.HI_Z
|
|
self.dev.channels['A'].constant(0)
|
|
self.dev.channels['B'].constant(0)
|
|
|
|
self.session.start(0)
|
|
|
|
self.status_light.setStyleSheet("background-color: green; border-radius: 10px;")
|
|
self.connection_label.setText("Verbunden")
|
|
self.status_bar.setText("Gerät verbunden | Bereit zur Messung")
|
|
self.session_active = True
|
|
self.start_button.setEnabled(True)
|
|
|
|
# Mess-Thread starten
|
|
self.start_measurement_thread()
|
|
|
|
except Exception as e:
|
|
raise Exception(f"Geräteinitialisierung fehlgeschlagen: {str(e)}")
|
|
|
|
def cleanup_device(self):
|
|
"""Bereinigt Geräteressourcen"""
|
|
# Mess-Thread stoppen
|
|
if self.measurement_thread is not None:
|
|
try:
|
|
self.measurement_thread.stop()
|
|
# Wait for thread to finish
|
|
if not self.measurement_thread.wait(1000): # 1 second timeout
|
|
print("Warning: Measurement thread didn't stop cleanly")
|
|
self.measurement_thread = None
|
|
except Exception as e:
|
|
print(f"Fehler beim Stoppen des Mess-Threads: {e}")
|
|
|
|
# Sitzung bereinigen
|
|
if hasattr(self, 'session'):
|
|
try:
|
|
if self.session_active:
|
|
# Add small delay before ending session
|
|
time.sleep(0.1)
|
|
self.session.end()
|
|
self.session_active = False
|
|
del self.session
|
|
except Exception as e:
|
|
print(f"Fehler beim Bereinigen der Sitzung: {e}")
|
|
finally:
|
|
self.session_active = False
|
|
|
|
# UI-Status zurücksetzen
|
|
self.status_light.setStyleSheet("background-color: red; border-radius: 10px;")
|
|
self.connection_label.setText("Getrennt")
|
|
self.start_button.setEnabled(False)
|
|
self.stop_button.setEnabled(False)
|
|
|
|
def start_measurement_thread(self):
|
|
"""Startet den Mess-Thread"""
|
|
if self.measurement_thread is not None:
|
|
self.measurement_thread.stop()
|
|
|
|
self.measurement_thread = MeasurementThread(self.dev, self.interval)
|
|
self.measurement_thread.update_signal.connect(self.update_measurements)
|
|
self.measurement_thread.error_signal.connect(self.handle_device_error)
|
|
self.measurement_thread.start()
|
|
|
|
def reconnect_device(self):
|
|
"""Versucht, das Gerät erneut zu verbinden"""
|
|
self.status_bar.setText("Versuche erneut zu verbinden...")
|
|
self.cleanup_device()
|
|
QTimer.singleShot(2000, self.safe_init_device) # Mit Verzögerung erneut versuchen
|
|
|
|
def handle_device_error(self, error_msg):
|
|
"""Behandelt Gerätefehler"""
|
|
print(f"Gerätefehler: {error_msg}")
|
|
self.status_bar.setText(f"Gerätefehler: {error_msg}")
|
|
self.cleanup_device()
|
|
|
|
# Nur Meldung anzeigen, wenn Fenster sichtbar ist
|
|
if self.isVisible():
|
|
QMessageBox.critical(
|
|
self,
|
|
"Gerätefehler",
|
|
f"Gerätefehler aufgetreten:\n{error_msg}\n\n"
|
|
"1. USB-Verbindung prüfen\n"
|
|
"2. Manuell erneut verbinden\n"
|
|
"3. Anwendung neu starten bei anhaltenden Problemen"
|
|
)
|
|
|
|
def start_test(self):
|
|
"""Startet den vollständigen Batterietestzyklus"""
|
|
if not self.test_running:
|
|
try:
|
|
# Eingabewerte holen und validieren
|
|
capacity = float(self.capacity_input.text())
|
|
charge_cutoff = float(self.charge_cutoff_input.text())
|
|
discharge_cutoff = float(self.discharge_cutoff_input.text())
|
|
c_rate = float(self.c_rate_input.text())
|
|
|
|
if capacity <= 0:
|
|
raise ValueError("Batteriekapazität muss positiv sein")
|
|
if charge_cutoff <= discharge_cutoff:
|
|
raise ValueError("Lade-Endspannung muss höher sein als Entlade-Endspannung")
|
|
if c_rate <= 0:
|
|
raise ValueError("C-Rate muss positiv sein")
|
|
|
|
self.continuous_mode = self.continuous_check.isChecked()
|
|
test_current = c_rate * capacity
|
|
|
|
if test_current > 0.2:
|
|
raise ValueError("Strom muss ≤200mA (0,2A) für ADALM1000 sein")
|
|
|
|
# Daten zurücksetzen
|
|
self.time_data.clear()
|
|
self.voltage_data.clear()
|
|
self.current_data.clear()
|
|
self.capacity_ah = 0.0
|
|
self.charge_capacity = 0.0
|
|
self.coulomb_efficiency = 0.0
|
|
self.cycle_count = 0
|
|
self.reset_plot()
|
|
|
|
# Protokolldatei vorbereiten
|
|
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
|
|
self.base_filename = os.path.join(self.log_dir, f"battery_test_{timestamp}")
|
|
|
|
# Test starten
|
|
self.test_running = True
|
|
self.start_time = time.time()
|
|
self.test_phase = "Initiale Entladung"
|
|
self.phase_label.setText(self.test_phase)
|
|
|
|
self.start_button.setEnabled(False)
|
|
self.stop_button.setEnabled(True)
|
|
self.status_bar.setText(f"Test gestartet | Entladen auf {discharge_cutoff}V @ {test_current:.3f}A")
|
|
|
|
# Testsequenz in eigenem Thread starten
|
|
self.test_thread = threading.Thread(target=self.run_test_sequence, daemon=True)
|
|
self.test_thread.start()
|
|
|
|
except Exception as e:
|
|
QMessageBox.critical(self, "Fehler", str(e))
|
|
|
|
def run_test_sequence(self):
|
|
"""Haupttestsequenz für Lade-/Entladezyklen"""
|
|
try:
|
|
test_current = float(self.c_rate_input.text()) * float(self.capacity_input.text())
|
|
charge_cutoff = float(self.charge_cutoff_input.text())
|
|
discharge_cutoff = float(self.discharge_cutoff_input.text())
|
|
|
|
while self.test_running and (self.continuous_mode or self.cycle_count == 0):
|
|
self.request_stop = False
|
|
self.cycle_count += 1
|
|
self.cycle_label.setText(f"{self.cycle_count}")
|
|
|
|
# Neue Protokolldatei für diesen Zyklus
|
|
if not self.create_cycle_log_file():
|
|
break
|
|
|
|
# Ladephase
|
|
self.execute_charge_phase(test_current, charge_cutoff)
|
|
if self.request_stop or not self.test_running:
|
|
break
|
|
|
|
# Ruhephase nach Ladung
|
|
self.execute_rest_phase("Nachladung")
|
|
if self.request_stop or not self.test_running:
|
|
break
|
|
|
|
# Entladephase
|
|
self.execute_discharge_phase(test_current, discharge_cutoff)
|
|
if not self.continuous_check.isChecked():
|
|
self.test_running = False
|
|
break
|
|
|
|
# Ruhephase nach Entladung
|
|
if self.test_running and not self.request_stop:
|
|
self.execute_rest_phase("Nach Entladung")
|
|
|
|
# Coulomb-Effizienz berechnen
|
|
if not self.request_stop and self.charge_capacity > 0:
|
|
self.coulomb_efficiency = (self.capacity_ah / self.charge_capacity) * 100
|
|
self.efficiency_label.setText(f"{self.coulomb_efficiency:.1f}")
|
|
|
|
# Status aktualisieren
|
|
self.status_bar.setText(
|
|
f"Zyklus {self.cycle_count} abgeschlossen | "
|
|
f"Entladung: {self.capacity_ah:.3f}Ah | "
|
|
f"Ladung: {self.charge_capacity:.3f}Ah | "
|
|
f"Effizienz: {self.coulomb_efficiency:.1f}%"
|
|
)
|
|
|
|
# Zyklusprotokoll schreiben
|
|
self.write_cycle_summary()
|
|
|
|
# Test abschließen
|
|
self.finalize_test()
|
|
|
|
except Exception as e:
|
|
self.handle_device_error(str(e))
|
|
self.finalize_test()
|
|
|
|
def execute_charge_phase(self, current, target_voltage):
|
|
"""Führt die Ladephase durch"""
|
|
self.test_phase = "Laden"
|
|
self.phase_label.setText(self.test_phase)
|
|
self.status_bar.setText(f"Laden auf {target_voltage}V @ {current:.3f}A")
|
|
|
|
self.measuring = True
|
|
self.dev.channels['A'].mode = pysmu.Mode.SIMV
|
|
self.dev.channels['A'].constant(current)
|
|
self.charge_capacity = 0.0
|
|
self.charge_capacity_label.setText("0.000")
|
|
last_update = time.time()
|
|
|
|
while self.test_running and not self.request_stop:
|
|
if not self.voltage_data:
|
|
time.sleep(0.1)
|
|
continue
|
|
|
|
now = time.time()
|
|
delta_t = now - last_update
|
|
last_update = now
|
|
|
|
measured_current = abs(self.current_data[-1])
|
|
self.charge_capacity += measured_current * delta_t / 3600
|
|
self.charge_capacity_label.setText(f"{self.charge_capacity:.4f}")
|
|
|
|
current_voltage = self.voltage_data[-1]
|
|
if current_voltage >= target_voltage or self.request_stop:
|
|
break
|
|
|
|
time.sleep(0.1)
|
|
|
|
def execute_discharge_phase(self, current, target_voltage):
|
|
"""Führt die Entladephase durch"""
|
|
self.test_phase = "Entladen"
|
|
self.phase_label.setText(self.test_phase)
|
|
self.status_bar.setText(f"Entladen auf {target_voltage}V @ {current:.3f}A")
|
|
|
|
self.measuring = True
|
|
self.dev.channels['A'].mode = pysmu.Mode.SIMV
|
|
self.dev.channels['A'].constant(-current)
|
|
self.capacity_ah = 0.0
|
|
self.capacity_label.setText("0.000")
|
|
last_update = time.time()
|
|
|
|
while self.test_running and not self.request_stop:
|
|
if not self.current_data:
|
|
time.sleep(0.1)
|
|
continue
|
|
|
|
now = time.time()
|
|
delta_t = now - last_update
|
|
last_update = now
|
|
|
|
measured_current = abs(self.current_data[-1])
|
|
self.capacity_ah += measured_current * delta_t / 3600
|
|
self.capacity_label.setText(f"{self.capacity_ah:.4f}")
|
|
|
|
current_voltage = self.voltage_data[-1]
|
|
if current_voltage <= target_voltage or self.request_stop:
|
|
break
|
|
|
|
time.sleep(0.1)
|
|
|
|
def execute_rest_phase(self, phase_name):
|
|
"""Führt eine Ruhephase durch"""
|
|
self.test_phase = f"Ruhen ({phase_name})"
|
|
self.phase_label.setText(self.test_phase)
|
|
self.measuring = False
|
|
self.dev.channels['A'].mode = pysmu.Mode.HI_Z
|
|
self.dev.channels['A'].constant(0)
|
|
|
|
rest_time = float(self.rest_time_input.text()) * 3600
|
|
rest_end = time.time() + rest_time
|
|
|
|
while time.time() < rest_end and self.test_running and not self.request_stop:
|
|
time_left = max(0, rest_end - time.time())
|
|
self.status_bar.setText(
|
|
f"Ruhen ({phase_name}) | "
|
|
f"Verbleibende Zeit: {time_left/60:.1f} min"
|
|
)
|
|
time.sleep(1)
|
|
|
|
def create_cycle_log_file(self):
|
|
"""Erstellt eine neue Protokolldatei für den aktuellen Zyklus"""
|
|
try:
|
|
suffix = 1
|
|
while True:
|
|
self.filename = f"{self.base_filename}_{suffix}.csv"
|
|
if not os.path.exists(self.filename):
|
|
break
|
|
suffix += 1
|
|
|
|
self.current_cycle_file = open(self.filename, 'w', newline='')
|
|
self.log_writer = csv.writer(self.current_cycle_file)
|
|
self.log_writer.writerow([
|
|
"Zeit(s)", "Spannung(V)", "Strom(A)", "Phase",
|
|
"Entladekapazität(Ah)", "Ladekapazität(Ah)",
|
|
"Coulomb-Eff.(%)", "Zyklus"
|
|
])
|
|
self.log_buffer = []
|
|
return True
|
|
except Exception as e:
|
|
self.handle_device_error(f"Protokolldatei konnte nicht erstellt werden: {e}")
|
|
return False
|
|
|
|
def write_cycle_summary(self):
|
|
"""Schreibt eine Zykluszusammenfassung in die Protokolldatei"""
|
|
if hasattr(self, 'current_cycle_file') and self.current_cycle_file:
|
|
try:
|
|
if self.log_buffer:
|
|
self.log_writer.writerows(self.log_buffer)
|
|
self.log_buffer.clear()
|
|
|
|
summary = (
|
|
f"Zyklus {self.cycle_count} Zusammenfassung - "
|
|
f"Entladung={self.capacity_ah:.4f}Ah, "
|
|
f"Ladung={self.charge_capacity:.4f}Ah, "
|
|
f"Effizienz={self.coulomb_efficiency:.1f}%"
|
|
)
|
|
self.current_cycle_file.write(summary + "\n")
|
|
self.current_cycle_file.flush()
|
|
except Exception as e:
|
|
print(f"Fehler beim Schreiben der Zykluszusammenfassung: {e}")
|
|
|
|
def stop_test(self):
|
|
"""Stoppt den laufenden Test sicher"""
|
|
if not self.test_running:
|
|
return
|
|
|
|
self.request_stop = True
|
|
self.test_running = False
|
|
self.measuring = False
|
|
self.test_phase = "Bereit"
|
|
self.phase_label.setText(self.test_phase)
|
|
|
|
if hasattr(self, 'dev'):
|
|
try:
|
|
self.dev.channels['A'].mode = pysmu.Mode.HI_Z
|
|
self.dev.channels['A'].constant(0)
|
|
except Exception as e:
|
|
print(f"Fehler beim Zurücksetzen des Geräts: {e}")
|
|
|
|
# UI aktualisieren
|
|
self.status_bar.setText("Test gestoppt - Bereit für neuen Test")
|
|
self.stop_button.setEnabled(False)
|
|
self.start_button.setEnabled(True)
|
|
|
|
# Testdaten finalisieren
|
|
QTimer.singleShot(100, self.finalize_test)
|
|
|
|
def finalize_test(self):
|
|
"""Finale Bereinigung nach Testende"""
|
|
# Protokolldaten schreiben
|
|
if hasattr(self, 'log_buffer') and self.log_buffer:
|
|
try:
|
|
self.log_writer.writerows(self.log_buffer)
|
|
self.log_buffer.clear()
|
|
except Exception as e:
|
|
print(f"Fehler beim Schreiben des Protokollpuffers: {e}")
|
|
|
|
# Protokolldatei schließen
|
|
if hasattr(self, 'current_cycle_file'):
|
|
try:
|
|
self.current_cycle_file.close()
|
|
except Exception as e:
|
|
print(f"Fehler beim Schließen der Protokolldatei: {e}")
|
|
|
|
# Benachrichtigung anzeigen
|
|
QMessageBox.information(
|
|
self,
|
|
"Test abgeschlossen",
|
|
f"Test wurde sicher beendet.\n\n"
|
|
f"Entladekapazität: {self.capacity_ah:.3f}Ah\n"
|
|
f"Abgeschlossene Zyklen: {self.cycle_count}"
|
|
)
|
|
|
|
def update_measurements(self, voltage, current, current_time):
|
|
"""Aktualisiert die Messwerte im UI"""
|
|
self.time_data.append(current_time)
|
|
self.voltage_data.append(voltage)
|
|
self.current_data.append(current)
|
|
|
|
# UI aktualisieren
|
|
self.voltage_label.setText(f"{voltage:.4f}")
|
|
self.current_label.setText(f"{current:.4f}")
|
|
self.time_label.setText(self.format_time(current_time))
|
|
|
|
# Plot regelmäßig aktualisieren
|
|
if len(self.time_data) % 10 == 0:
|
|
self.update_plot()
|
|
|
|
# Daten protokollieren, wenn Test läuft
|
|
if self.test_running and hasattr(self, 'current_cycle_file'):
|
|
self.log_buffer.append([
|
|
f"{current_time:.3f}",
|
|
f"{voltage:.6f}",
|
|
f"{current:.6f}",
|
|
self.test_phase,
|
|
f"{self.capacity_ah:.4f}",
|
|
f"{self.charge_capacity:.4f}",
|
|
f"{self.coulomb_efficiency:.1f}",
|
|
f"{self.cycle_count}"
|
|
])
|
|
|
|
# Daten in Blöcken schreiben
|
|
if len(self.log_buffer) >= 10:
|
|
with open(self.filename, 'a', newline='') as f:
|
|
writer = csv.writer(f)
|
|
writer.writerows(self.log_buffer)
|
|
self.log_buffer.clear()
|
|
|
|
def update_plot(self):
|
|
"""Aktualisiert den Plot mit neuen Daten"""
|
|
if not self.time_data:
|
|
return
|
|
|
|
self.line_voltage.set_data(self.time_data, self.voltage_data)
|
|
self.line_current.set_data(self.time_data, self.current_data)
|
|
self.auto_scale_axes()
|
|
self.canvas.draw_idle()
|
|
|
|
def auto_scale_axes(self):
|
|
"""Passt die Plotachsen automatisch an"""
|
|
if not self.time_data:
|
|
return
|
|
|
|
# X-Achse anpassen
|
|
max_time = self.time_data[-1]
|
|
current_xlim = self.ax.get_xlim()
|
|
if max_time > current_xlim[1] * 0.95:
|
|
self.ax.set_xlim(0, max_time * 1.05)
|
|
self.ax2.set_xlim(0, max_time * 1.05)
|
|
|
|
# Y-Achsen anpassen
|
|
if self.voltage_data:
|
|
voltage_padding = 0.2
|
|
min_v = max(0, min(self.voltage_data) - voltage_padding)
|
|
max_v = min(5.0, max(self.voltage_data) + voltage_padding)
|
|
self.ax.set_ylim(min_v, max_v)
|
|
|
|
if self.current_data:
|
|
current_padding = 0.05
|
|
min_c = max(-0.25, min(self.current_data) - current_padding)
|
|
max_c = min(0.25, max(self.current_data) + current_padding)
|
|
self.ax2.set_ylim(min_c, max_c)
|
|
|
|
@staticmethod
|
|
def format_time(seconds):
|
|
"""Formatiert Sekunden als HH:MM:SS"""
|
|
hours = int(seconds // 3600)
|
|
minutes = int((seconds % 3600) // 60)
|
|
seconds = int(seconds % 60)
|
|
return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
|
|
|
|
def reset_plot(self):
|
|
"""Setzt den Plot zurück"""
|
|
self.line_voltage.set_data([], [])
|
|
self.line_current.set_data([], [])
|
|
|
|
# Initiale Achsenbereiche setzen
|
|
voltage_padding = 0.2
|
|
min_voltage = max(0, float(self.discharge_cutoff_input.text()) - voltage_padding)
|
|
max_voltage = float(self.charge_cutoff_input.text()) + voltage_padding
|
|
self.ax.set_xlim(0, 10)
|
|
self.ax.set_ylim(min_voltage, max_voltage)
|
|
|
|
current_padding = 0.05
|
|
test_current = float(self.c_rate_input.text()) * float(self.capacity_input.text())
|
|
max_current = test_current * 1.5
|
|
self.ax2.set_ylim(-max_current - current_padding, max_current + current_padding)
|
|
|
|
self.canvas.draw()
|
|
|
|
def closeEvent(self, event):
|
|
"""Bereinigt beim Schließen des Fensters"""
|
|
self.cleanup_device()
|
|
event.accept()
|
|
|
|
if __name__ == "__main__":
|
|
app = QApplication([])
|
|
app.setStyle('Fusion')
|
|
window = BatteryTester()
|
|
window.show()
|
|
app.exec_() |