MainCode/adalm1000_logger.py aktualisiert

Alle Spannungswerte korrekt gemessen werden

    Das Programm stabil bleibt, auch ohne angeschlossene Batterie

    Der Benutzer klare Rückmeldungen über den Systemzustand erhält

    Die Hardware in einem sicheren Zustand bleibt
(D)

MainCode/adalm1000_logger.py

@@ -38,21 +38,39 @@ class MeasurementThread(QThread):
         self.current_direction = 1  # 1 for source, -1 for sink
 
     def run(self):
-        """Continuous measurement loop"""
+        """Continuous measurement with proper validation"""
         self._running = True
+        consecutive_errors = 0
+        
         while self._running:
             try:
                 samples = self.device.read(self.filter_window_size, 500, True)
+                
+                # Check for device disconnection
                 if not samples:
-                    raise DeviceDisconnectedError("No samples received")
+                    consecutive_errors += 1
+                    if consecutive_errors > 3:
+                        raise DeviceDisconnectedError("Keine Messwerte empfangen")
+                    time.sleep(0.1)
+                    continue
+                    
+                consecutive_errors = 0  # Reset counter on successful read
                 
                 current_time = time.time() - self.start_time
+                raw_voltage = np.mean([s[1][0] for s in samples])  # Channel B
                 
-                # Get voltage from Channel B (HI_Z mode) and current from Channel A
+                # Strict voltage validation (0-5V range)
-                raw_voltage = np.mean([s[1][0] for s in samples])  # Channel B voltage
+                if raw_voltage < 0 or raw_voltage > 5.0:
-                raw_current = np.mean([s[0][1] for s in samples]) * self.current_direction  # Channel A current with direction
+                    raise ValueError(f"Ungültige Spannung: {raw_voltage}V (außerhalb 0-5V Bereich)")
                 
-                # Update filter windows
+                # Current measurement with direction
+                raw_current = np.mean([s[0][1] for s in samples]) * self.current_direction
+                
+                # Current validation (-200mA to +200mA)
+                if not (-0.25 <= raw_current <= 0.25):
+                    raise ValueError(f"Ungültiger Strom: {raw_current}A (außerhalb ±200mA Bereich)")
+                
+                # Apply filtering
                 self.voltage_window.append(raw_voltage)
                 self.current_window.append(raw_current)
                 
@@ -63,27 +81,25 @@ class MeasurementThread(QThread):
                 voltage = np.mean(self.voltage_window)
                 current = np.mean(self.current_window)
                 
-                # Validate measurements
+                # Emit measurements
-                if not (0 <= voltage <= 5.0):
-                    raise ValueError(f"Invalid voltage: {voltage}V")
-                if not (-0.25 <= current <= 0.25):
-                    raise ValueError(f"Invalid current: {current}A")
-                
-                # Emit update
                 self.update_signal.emit(voltage, current, current_time)
                 
-                # Store measurement
+                # Store in queue
                 try:
                     self.measurement_queue.put_nowait((voltage, current))
                 except Full:
                     pass
-                
+                    
                 time.sleep(max(0.05, self.interval))
                 
-            except Exception as e:
+            except DeviceDisconnectedError as e:
-                self.error_signal.emit(f"Read error: {str(e)}")
+                self.error_signal.emit(f"Gerätefehler: {str(e)}")
                 time.sleep(1)
                 continue
+            except Exception as e:
+                self.error_signal.emit(f"Messfehler: {str(e)}")
+                time.sleep(0.5)
+                continue
 
     def set_direction(self, direction):
         """Set current direction (1 for source, -1 for sink)"""
@@ -892,33 +908,55 @@ class BatteryTester(QMainWindow):
         self.main_layout.addWidget(self.canvas, 1)
 
     def init_device(self):
-        """Initialize the ADALM1000 device with continuous measurement"""
+        """Initialize the ADALM1000 with proper connection checks"""
         try:
-            # Clean up any existing session
+            # Cleanup previous session
             if hasattr(self, 'session'):
                 try:
                     self.session.end()
                     del self.session
                 except:
                     pass
-                    
+
+            # Hardware reset delay
             time.sleep(1)
-            
+
-            self.session = pysmu.Session(ignore_dataflow=True, queue_size=10000)
+            try:
-            if not self.session.devices:
+                self.session = pysmu.Session(ignore_dataflow=True, queue_size=10000)
-                raise Exception("No ADALM1000 detected - check connections")
+                if not self.session.devices:
+                    raise Exception("Kein ADALM1000 erkannt - Verbindung prüfen")
+            except Exception as e:
+                if "resource busy" in str(e).lower():
+                    raise Exception("ADALM1000 wird bereits von einem anderen Programm verwendet")
+                raise
 
             self.dev = self.session.devices[0]
+            
+            # Set safe defaults
             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)
+            # Connection test with actual measurement
+            try:
+                samples = self.dev.read(5, 500, True)  # 5 samples for stability
+                if not samples:
+                    raise DeviceDisconnectedError("Keine Messwerte empfangen")
+                
+                # Check if we're getting valid data (not just noise)
+                voltages = [s[1][0] for s in samples]  # Channel B voltages
+                if all(abs(v) < 0.0001 for v in voltages):  # 100µV threshold
+                    self.status_bar.showMessage("Gerät verbunden, aber keine Batterie angeschlossen")
+            except Exception as e:
+                raise DeviceDisconnectedError(f"Verbindungstest fehlgeschlagen: {str(e)}")
 
-            self.status_light.setStyleSheet(f"background-color: green; border-radius: 10px;")
+            self.session.start(0)
-            self.connection_label.setText("Connected")
+            
-            self.status_bar.showMessage("Device connected | Ready to measure")
+            # Update UI
+            self.status_light.setStyleSheet("background-color: green; border-radius: 10px;")
+            self.connection_label.setText("Verbunden")
+            self.status_bar.showMessage("Gerät bereit - Batterie anschließen um zu messen")
             self.session_active = True
             self.start_button.setEnabled(True)
 
@@ -1852,33 +1890,39 @@ class BatteryTester(QMainWindow):
 
     @pyqtSlot(str)
     def handle_device_error(self, error):
-        """Handle device connection errors"""
+        """Handle errors with proper state management"""
         error_msg = str(error)
-        print(f"Device error: {error_msg}")
+        print(f"Fehler: {error_msg}")
 
+        # Special cases
+        if "resource busy" in error_msg.lower():
+            error_msg = "ADALM1000 is already in use"
+        elif "no samples" in error_msg.lower():
+            error_msg = "No measurments - Check connection"
+
+        # Cleanup
         if hasattr(self, 'session'):
             try:
                 if self.session_active:
                     self.session.end()
                 del self.session
-            except Exception as e:
+            except:
-                print(f"Error cleaning up session: {e}")
+                pass
 
-        self.status_light.setStyleSheet(f"background-color: red; border-radius: 10px;")
+        # Update UI
+        self.status_light.setStyleSheet("background-color: red; border-radius: 10px;")
         self.connection_label.setText("Disconnected")
-        self.status_bar.showMessage(f"Device error: {error_msg}")
+        self.status_bar.showMessage(f"Error: {error_msg}")
-
+        
+        # Disable controls
         self.session_active = False
         self.test_running = False
-        self.continuous_mode = False
-        self.measuring = False
-        
         self.start_button.setEnabled(False)
         self.stop_button.setEnabled(False)
 
-        self.time_data.clear()
+        # Attempt recovery for certain errors
-        self.voltage_data.clear()
+        if "no samples" in error_msg.lower() or "resource busy" in error_msg.lower():
-        self.current_data.clear()
+            QTimer.singleShot(3000, self.reconnect_device)
     
     @pyqtSlot(str)
     def update_test_phase(self, phase_text):