diff --git a/unilabos/devices/virtual/virtual_multiway_valve.py b/unilabos/devices/virtual/virtual_multiway_valve.py
index e69fd7c..3c288f4 100644
--- a/unilabos/devices/virtual/virtual_multiway_valve.py
+++ b/unilabos/devices/virtual/virtual_multiway_valve.py
@@ -36,15 +36,20 @@ class VirtualMultiwayValve:
         """获取当前阀门位置"""
         return self._current_position
 
-    def set_position(self, position: Union[int, str]):
+    def set_position(self, command: Union[int, str]):
         """
-        设置阀门位置
+        设置阀门位置 - 兼容 SendCmd 类型
         
         Args:
-            position: 目标位置 (1-8)
+            command: 目标位置 (1-8) 或位置字符串
         """
         try:
-            pos = int(position)
+            # 如果是字符串形式的位置，先转换为数字
+            if isinstance(command, str):
+                pos = int(command)
+            else:
+                pos = int(command)
+                
             if pos < 1 or pos > self.max_positions:
                 raise ValueError(f"Position must be between 1 and {self.max_positions}")
             
diff --git a/unilabos/devices/virtual/virtual_solenoid_valve.py b/unilabos/devices/virtual/virtual_solenoid_valve.py
index 92e8baf..fb3b702 100644
--- a/unilabos/devices/virtual/virtual_solenoid_valve.py
+++ b/unilabos/devices/virtual/virtual_solenoid_valve.py
@@ -80,26 +80,26 @@ class VirtualSolenoidValve:
         
         return "Valve closed"
 
-    def set_state(self, state: Union[bool, str]):
+    def set_state(self, command: Union[bool, str]):
         """
-        设置阀门状态
-        
+        设置阀门状态 - 兼容 SendCmd 类型
+    
         Args:
-            state: True/False 或 "open"/"close"
+            command: True/False 或 "open"/"close"
         """
-        if isinstance(state, bool):
-            return self.open() if state else self.close()
-        elif isinstance(state, str):
-            if state.lower() in ["open", "on", "true", "1"]:
+        if isinstance(command, bool):
+            return self.open() if command else self.close()
+        elif isinstance(command, str):
+            if command.lower() in ["open", "on", "true", "1"]:
                 return self.open()
-            elif state.lower() in ["close", "closed", "off", "false", "0"]:
+            elif command.lower() in ["close", "closed", "off", "false", "0"]:
                 return self.close()
             else:
                 self._status = "Error"
-                return "Error: Invalid state"
+                return "Error: Invalid command"
         else:
             self._status = "Error"
-            return "Error: Invalid state type"
+            return "Error: Invalid command type"
 
     def toggle(self):
         """切换阀门状态"""
diff --git a/unilabos/registry/devices/virtual_device.yaml b/unilabos/registry/devices/virtual_device.yaml
index 8122a1f..ffaa05d 100644
--- a/unilabos/registry/devices/virtual_device.yaml
+++ b/unilabos/registry/devices/virtual_device.yaml
@@ -185,7 +185,7 @@ virtual_multiway_valve:
       set_position:
         type: SendCmd
         goal:
-          position: position
+          command: position
         feedback: {}
         result:
           success: success
@@ -267,7 +267,7 @@ virtual_solenoid_valve:
     status_types:
       status: String
       valve_state: String  # "open" or "closed"
-      is_open: Boolean
+      is_open: Bool
     action_value_mappings:
       open:
         type: EmptyIn
@@ -282,9 +282,9 @@ virtual_solenoid_valve:
         result:
           success: success
       set_state:
-        type: BoolSingleInput
+        type: SendCmd
         goal:
-          state: state
+          command: command 
         feedback: {}
         result:
           success: success