101 lines
3.6 KiB
Python
101 lines
3.6 KiB
Python
import threading, queue, time, csv, os, statistics
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class DeviceWorker:
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"""
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Arbeitet genau wie dein Single-Gerät-Logger:
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- filter_window_size Rohsamples pro Loop
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- ~10 Hz Loop (interval=0.1)
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- 1 Hz Logging (eine CSV-Zeile pro Sekunde)
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Wichtig: kontrolliert NICHT die Session!
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"""
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def __init__(self, dev, outdir="./logs", filter_window_size=10, interval=0.1):
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self.dev = dev
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self.serial = getattr(dev, "serial", "UNKNOWN")
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self.outdir = outdir
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self.filter_window_size = filter_window_size
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self.interval = interval
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self._running = False
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self._stop_evt = threading.Event()
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self._cmdq = queue.Queue()
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self._writer_q = queue.Queue(maxsize=50)
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self._reader_t = threading.Thread(target=self._reader_loop, daemon=True)
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self._writer_t = threading.Thread(target=self._writer_loop, daemon=True)
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# ---- API ----
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def start(self):
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if not self._reader_t.is_alive(): self._reader_t.start()
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if not self._writer_t.is_alive(): self._writer_t.start()
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self._cmdq.put(("start", None))
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def stop(self):
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self._cmdq.put(("stop", None))
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def shutdown(self):
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self.stop()
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self._stop_evt.set()
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def set_mode(self, ch, mode):
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key = {0: "A", 1: "B"}.get(ch, str(ch).upper())
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self.dev.channels[key].mode = mode
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# ---- Threads ----
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def _reader_loop(self):
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last_log = 0.0
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while not self._stop_evt.is_set():
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# Kommandos
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try:
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cmd, _ = self._cmdq.get_nowait()
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if cmd == "start": self._running = True
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elif cmd == "stop": self._running = False
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except queue.Empty:
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pass
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if not self._running:
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time.sleep(0.05)
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continue
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try:
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# wie im Single-Logger: n Samples holen, mitteln
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# WICHTIG: kleiner Timeout, damit der Thread nie "fest" hängt
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samples = self.dev.read(self.filter_window_size, 50) # timeout ~50 ms
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if not samples:
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time.sleep(self.interval)
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continue
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vA = statistics.mean(row[0] for row in samples)
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vB = statistics.mean(row[2] for row in samples)
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now = time.time()
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if now - last_log >= 1.0: # 1 Hz ins File
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try:
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self._writer_q.put((now, vA, vB), timeout=0.2)
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last_log = now
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except queue.Full:
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pass
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except Exception as e:
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print(f"[{self.serial}] Read-Fehler: {e}")
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time.sleep(0.02)
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# Loop-Takt exakt wie beim Single-Logger
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time.sleep(max(0.05, self.interval))
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def _writer_loop(self):
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os.makedirs(self.outdir, exist_ok=True)
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fn = os.path.join(self.outdir, f"{time.strftime('%Y%m%d_%H%M%S')}_{self.serial}.csv")
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try:
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with open(fn, "w", newline="") as f:
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w = csv.writer(f)
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w.writerow(["timestamp", "A", "B"])
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while not (self._stop_evt.is_set() and self._writer_q.empty()):
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try:
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ts, vA, vB = self._writer_q.get(timeout=0.5)
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except queue.Empty:
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continue
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w.writerow([ts, vA, vB])
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f.flush() # bei 1 Hz ok
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except Exception as e:
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print(f"[{self.serial}] Writer-Fehler: {e}")
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finally:
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print(f"[{self.serial}] Datei geschlossen: {fn}") |