diff --git a/mqttc.py b/mqttc.py
index 79a6e17..2c970f8 100644
--- a/mqttc.py
+++ b/mqttc.py
@@ -19,6 +19,7 @@ import queue
 CUR_DIR = os.path.dirname(os.path.abspath(__file__))
 sys.path.insert(0, CUR_DIR)
 import conf
+import time
 
 
 LOG_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'mqttc.log')
@@ -30,6 +31,7 @@ logging.basicConfig(level=getattr(logging, conf.LOG_LEVEL.upper(), logging.INFO)
                     ])
 logger = logging.getLogger(__name__)
 
+
 engine:Engine = None
 mpoint_dict = {} # {"mpoint_id": last_timex}
 msg_queue: queue.Queue = queue.Queue()
@@ -46,12 +48,24 @@ def send_error_email(message, subject='hfnf_mqtt', ):
     server.sendmail(conf.EMAIL_HOST_USER, [conf.EMAIL_HOST_USER, conf.EMAIL_HOST_USER2], msg.as_string())
     server.quit()
 
-def worker():
-    while True:
-        msg = msg_queue.get()
-        if msg is not None:
-            save_items(msg)
 
+def worker():
+    last_message_time = time.time() # 最后一次收到消息时间
+    last_alert_time = 0  # 上一次报警时间
+    while True:
+        try:
+            msg = msg_queue.get(timeout=60)
+            if msg is not None:
+                save_items(msg)
+                last_message_time = time.time()
+                last_alert_time = 0
+
+        except queue.Empty:
+            now = time.time()
+            if now - last_message_time > 600 and now - last_alert_time > 600:
+                Thread(target=send_error_email, args=(f"time-out 10min hfnf_mqtt-无数据推送",)).start()
+                last_alert_time = now
+    
 def save_items(payload):
     item_list = json.loads(payload)
     sql_str = "INSERT INTO mplogx (timex, mpoint_id, val_float, val_str) VALUES (:timex, :mpoint_id, :val_float, :val_str)"