封膜仪、撕膜仪、耗材站接口

unilabos/devices/sealer/sealer.py

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+import serial, time, re
+
+class SimpleSealer:
+    """
+    It purposely skips CRC/ACK handling and sends raw commands of the form
+    '**00??[=xxxx]zz!'.  Good enough for quick experiments or automation
+    scripts where robustness is less critical.
+
+    Example
+    -------
+    >>> sealer = SimpleSealer("COM24")
+    >>> sealer.set_temperature(160)  # 160 °C
+    >>> sealer.set_time(2.0)         # 2 s
+    >>> sealer.seal_cycle()          # wait‑heat‑seal‑eject
+    >>> sealer.close()
+    """
+    T_RE = re.compile(r"\*T\d\d:\d\d:\d\d=(\d+),(\d),(\d),")
+
+    def __init__(self, port: str, baud: int = 19200, thresh_c: int = 150):
+        self.port = port
+        self.baud = baud
+        self.thresh_c = thresh_c
+        self.ser = serial.Serial(port, baud, timeout=0.3)
+        self.ser.reset_input_buffer()
+
+    # ---------- low‑level helpers ----------
+    def _send(self, raw: str):
+        """Write an already‑formed ASCII command, e.g. '**00DH=0160zz!'."""
+        self.ser.write(raw.encode())
+        print(">>>", raw)
+
+    def _read_frame(self) -> str:
+        """Read one frame (ending at '!') and strip the terminator."""
+        return self.ser.read_until(b'!').decode(errors='ignore').strip()
+
+    # ---------- high‑level commands ----------
+    def set_temperature(self, celsius: int):
+        self._send(f"**00DH={celsius:04d}zz!")
+
+    def set_time(self, seconds: float):
+        units = int(round(seconds * 10))
+        self._send(f"**00DT={units:04d}zz!")
+
+    def open_drawer(self):
+        self._send("**00MOzz!")
+
+    def close_drawer(self):
+        self._send("**00MCzz!")
+
+    def seal(self):
+        self._send("**00GSzz!")
+
+    # ---------- waits ----------
+    def wait_temp(self):
+        print(f"[Waiting ≥{self.thresh_c}°C]")
+        while True:
+            frame = self._read_frame()
+            if frame.startswith("*T"):
+                m = self.T_RE.match(frame)
+                if not m:
+                    continue
+                temp = int(m.group(1)) / 10
+                blk  = int(m.group(3))          # 1=Ready,4=Converging
+                print(f"\rTemp={temp:5.1f}°C | Block={blk}", end="")
+                if temp >= self.thresh_c and blk in (1, 0, 4):
+                    print("  <-- OK")
+                    return
+
+    def wait_finish(self):
+        while True:
+            frame = self._read_frame()
+            if frame.startswith("*T"):
+                parts  = frame.split('=')[1].split(',')
+                status = int(parts[1])
+                cnt    = int(parts[6][: -3] if parts[6].endswith("!") else parts[6])
+                print(f"\rRemaining {cnt/10:4.1f}s", end="")
+                if status == 4:
+                    print("\n[Seal Done]")
+                    return
+
+    # ---------- convenience helpers ----------
+    def seal_cycle(self):
+        """Full cycle: wait heat, seal, wait finish, eject drawer."""
+        time.sleep(10)
+        self.seal()
+        self.open_drawer()
+
+    def close(self):
+        self.ser.close()
+
+
+if __name__ == "__main__":
+    # Quick demo usage (modify COM port and parameters as needed)
+    sealer = SimpleSealer("COM24")
+    try:
+        sealer.set_temperature(160)   # °C
+        sealer.set_time(2.0)          # seconds
+        sealer.seal_cycle()
+    finally:
+        sealer.close()