diff --git a/templates/listener_tcp.py.tpl b/templates/listener_tcp.py.tpl
index 1e3cba5..96531c0 100644
--- a/templates/listener_tcp.py.tpl
+++ b/templates/listener_tcp.py.tpl
@@ -33,6 +33,9 @@ COMMAND_MAPPINGS = {command_mappings}
 def process_command(buf):
     """处理接收到的命令，返回对应的操作指令"""
     buf = buf.strip()
+    # 状态查询或心跳检测，返回特殊标记
+    if buf == "state=?" or buf == "":
+        return "status_check"
     if buf in COMMAND_MAPPINGS:
         return COMMAND_MAPPINGS[buf]
     return "nodata"
@@ -68,7 +71,13 @@ def main():
 
             operation = process_command(buf)
 
-            if operation == "nodata":
+            if operation == "status_check":
+                # 状态查询或心跳检测，直接回复 ok
+                logstr = "===" + datetime_str + " 状态查询/心跳检测，回复 ok"
+                logging.info(logstr)
+                print(logstr)
+                connection.send(b'ok')
+            elif operation == "nodata":
                 logstr = "===" + datetime_str + " 未知指令: '" + str(buf) + "'"
                 logging.warning(logstr)
                 print(logstr)