add registry name & add always free

unilabos/app/ws_client.py

@@ -76,6 +76,7 @@ class JobInfo:
     start_time: float
     last_update_time: float = field(default_factory=time.time)
     ready_timeout: Optional[float] = None  # READY状态的超时时间
+    always_free: bool = False  # 是否为永久闲置动作(不受排队限制)
 
     def update_timestamp(self):
         """更新最后更新时间"""
@@ -127,6 +128,15 @@ class DeviceActionManager:
             # 总是将job添加到all_jobs中
             self.all_jobs[job_info.job_id] = job_info
 
+            # always_free的动作不受排队限制，直接设为READY
+            if job_info.always_free:
+                job_info.status = JobStatus.READY
+                job_info.update_timestamp()
+                job_info.set_ready_timeout(10)
+                job_log = format_job_log(job_info.job_id, job_info.task_id, job_info.device_id, job_info.action_name)
+                logger.trace(f"[DeviceActionManager] Job {job_log} always_free, start immediately")
+                return True
+
             # 检查是否有正在执行或准备执行的任务
             if device_key in self.active_jobs:
                 # 有正在执行或准备执行的任务，加入队列
@@ -176,11 +186,15 @@ class DeviceActionManager:
                 logger.error(f"[DeviceActionManager] Job {job_log} is not in READY status, current: {job_info.status}")
                 return False
 
-            # 检查设备上是否是这个job
+            # always_free的job不需要检查active_jobs
-            if device_key not in self.active_jobs or self.active_jobs[device_key].job_id != job_id:
+            if not job_info.always_free:
-                job_log = format_job_log(job_info.job_id, job_info.task_id, job_info.device_id, job_info.action_name)
+                # 检查设备上是否是这个job
-                logger.error(f"[DeviceActionManager] Job {job_log} is not the active job for {device_key}")
+                if device_key not in self.active_jobs or self.active_jobs[device_key].job_id != job_id:
-                return False
+                    job_log = format_job_log(
+                        job_info.job_id, job_info.task_id, job_info.device_id, job_info.action_name
+                    )
+                    logger.error(f"[DeviceActionManager] Job {job_log} is not the active job for {device_key}")
+                    return False
 
             # 开始执行任务，将状态从READY转换为STARTED
             job_info.status = JobStatus.STARTED
@@ -203,6 +217,13 @@ class DeviceActionManager:
             job_info = self.all_jobs[job_id]
             device_key = job_info.device_action_key
 
+            # always_free的job直接清理，不影响队列
+            if job_info.always_free:
+                job_info.status = JobStatus.ENDED
+                job_info.update_timestamp()
+                del self.all_jobs[job_id]
+                return None
+
             # 移除活跃任务
             if device_key in self.active_jobs and self.active_jobs[device_key].job_id == job_id:
                 del self.active_jobs[device_key]
@@ -234,9 +255,14 @@ class DeviceActionManager:
             return None
 
     def get_active_jobs(self) -> List[JobInfo]:
-        """获取所有正在执行的任务"""
+        """获取所有正在执行的任务(含active_jobs和always_free的STARTED job)"""
         with self.lock:
-            return list(self.active_jobs.values())
+            jobs = list(self.active_jobs.values())
+            # 补充 always_free 的 STARTED job(它们不在 active_jobs 中)
+            for job in self.all_jobs.values():
+                if job.always_free and job.status == JobStatus.STARTED and job not in jobs:
+                    jobs.append(job)
+            return jobs
 
     def get_queued_jobs(self) -> List[JobInfo]:
         """获取所有排队中的任务"""
@@ -261,6 +287,14 @@ class DeviceActionManager:
             job_info = self.all_jobs[job_id]
             device_key = job_info.device_action_key
 
+            # always_free的job直接清理
+            if job_info.always_free:
+                job_info.status = JobStatus.ENDED
+                del self.all_jobs[job_id]
+                job_log = format_job_log(job_info.job_id, job_info.task_id, job_info.device_id, job_info.action_name)
+                logger.trace(f"[DeviceActionManager] Always-free job {job_log} cancelled")
+                return True
+
             # 如果是正在执行的任务
             if device_key in self.active_jobs and self.active_jobs[device_key].job_id == job_id:
                 # 清理active job状态
@@ -334,13 +368,18 @@ class DeviceActionManager:
         timeout_jobs = []
 
         with self.lock:
-            # 统计READY状态的任务数量
+            # 收集所有需要检查的 READY 任务(active_jobs + always_free READY jobs)
-            ready_jobs_count = sum(1 for job in self.active_jobs.values() if job.status == JobStatus.READY)
+            ready_candidates = list(self.active_jobs.values())
+            for job in self.all_jobs.values():
+                if job.always_free and job.status == JobStatus.READY and job not in ready_candidates:
+                    ready_candidates.append(job)
+
+            ready_jobs_count = sum(1 for job in ready_candidates if job.status == JobStatus.READY)
             if ready_jobs_count > 0:
                 logger.trace(f"[DeviceActionManager] Checking {ready_jobs_count} READY jobs for timeout")  # type: ignore  # noqa: E501
 
             # 找到所有超时的READY任务（只检测，不处理）
-            for job_info in self.active_jobs.values():
+            for job_info in ready_candidates:
                 if job_info.is_ready_timeout():
                     timeout_jobs.append(job_info)
                     job_log = format_job_log(
@@ -608,6 +647,24 @@ class MessageProcessor:
         if host_node:
             host_node.handle_pong_response(pong_data)
 
+    def _check_action_always_free(self, device_id: str, action_name: str) -> bool:
+        """检查该action是否标记为always_free，通过HostNode统一的_action_value_mappings查找"""
+        try:
+            host_node = HostNode.get_instance(0)
+            if not host_node:
+                return False
+            # noinspection PyProtectedMember
+            action_mappings = host_node._action_value_mappings.get(device_id)
+            if not action_mappings:
+                return False
+            # 尝试直接匹配或 auto- 前缀匹配
+            for key in [action_name, f"auto-{action_name}"]:
+                if key in action_mappings:
+                    return action_mappings[key].get("always_free", False)
+            return False
+        except Exception:
+            return False
+
     async def _handle_query_action_state(self, data: Dict[str, Any]):
         """处理query_action_state消息"""
         device_id = data.get("device_id", "")
@@ -622,6 +679,9 @@ class MessageProcessor:
 
         device_action_key = f"/devices/{device_id}/{action_name}"
 
+        # 检查action是否为always_free
+        action_always_free = self._check_action_always_free(device_id, action_name)
+
         # 创建任务信息
         job_info = JobInfo(
             job_id=job_id,
@@ -631,6 +691,7 @@ class MessageProcessor:
             device_action_key=device_action_key,
             status=JobStatus.QUEUE,
             start_time=time.time(),
+            always_free=action_always_free,
         )
 
         # 添加到设备管理器

unilabos/devices/ros_dev/liquid_handler_joint_publisher.py

@@ -19,10 +19,11 @@ from rclpy.node import Node
 import re
 
 class LiquidHandlerJointPublisher(BaseROS2DeviceNode):
-    def __init__(self,resources_config:list, resource_tracker, rate=50, device_id:str = "lh_joint_publisher", **kwargs):
+    def __init__(self,resources_config:list, resource_tracker, rate=50, device_id:str = "lh_joint_publisher", registry_name: str = "lh_joint_publisher", **kwargs):
         super().__init__(
             driver_instance=self,
             device_id=device_id,
+            registry_name=registry_name,
             status_types={},
             action_value_mappings={},
             hardware_interface={},

unilabos/devices/virtual/workbench.py

@@ -22,7 +22,7 @@ from threading import Lock, RLock
 from typing_extensions import TypedDict
 
 from unilabos.ros.nodes.base_device_node import BaseROS2DeviceNode
-from unilabos.utils.decorator import not_action
+from unilabos.utils.decorator import not_action, always_free
 from unilabos.resources.resource_tracker import SampleUUIDsType, LabSample, RETURN_UNILABOS_SAMPLES
 
 
@@ -123,8 +123,8 @@ class VirtualWorkbench:
     _ros_node: BaseROS2DeviceNode
 
     # 配置常量
-    ARM_OPERATION_TIME: float = 3.0  # 机械臂操作时间(秒)
+    ARM_OPERATION_TIME: float = 2  # 机械臂操作时间(秒)
-    HEATING_TIME: float = 10.0  # 加热时间(秒)
+    HEATING_TIME: float = 60.0  # 加热时间(秒)
     NUM_HEATING_STATIONS: int = 3  # 加热台数量
 
     def __init__(self, device_id: Optional[str] = None, config: Optional[Dict[str, Any]] = None, **kwargs):
@@ -141,9 +141,9 @@ class VirtualWorkbench:
         self.data: Dict[str, Any] = {}
 
         # 从config中获取可配置参数
-        self.ARM_OPERATION_TIME = float(self.config.get("arm_operation_time", 3.0))
+        self.ARM_OPERATION_TIME = float(self.config.get("arm_operation_time", self.ARM_OPERATION_TIME))
-        self.HEATING_TIME = float(self.config.get("heating_time", 10.0))
+        self.HEATING_TIME = float(self.config.get("heating_time", self.HEATING_TIME))
-        self.NUM_HEATING_STATIONS = int(self.config.get("num_heating_stations", 3))
+        self.NUM_HEATING_STATIONS = int(self.config.get("num_heating_stations", self.NUM_HEATING_STATIONS))
 
         # 机械臂状态和锁 (使用threading.Lock)
         self._arm_lock = Lock()
@@ -431,6 +431,7 @@ class VirtualWorkbench:
                     sample_uuid, content in sample_uuids.items()]
             }
 
+    @always_free
     def start_heating(
         self,
         sample_uuids: SampleUUIDsType,
@@ -501,10 +502,21 @@ class VirtualWorkbench:
 
         self._update_data_status(f"加热台{station_id}开始加热{material_id}")
 
-        # 模拟加热过程 (10秒)
+        # 打印当前所有正在加热的台位
+        with self._stations_lock:
+            heating_list = [
+                f"加热台{sid}:{s.current_material}"
+                for sid, s in self._heating_stations.items()
+                if s.state == HeatingStationState.HEATING and s.current_material
+            ]
+        self.logger.info(f"[并行加热] 当前同时加热中: {', '.join(heating_list)}")
+
+        # 模拟加热过程
         start_time = time.time()
+        last_countdown_log = start_time
         while True:
             elapsed = time.time() - start_time
+            remaining = max(0.0, self.HEATING_TIME - elapsed)
             progress = min(100.0, (elapsed / self.HEATING_TIME) * 100)
 
             with self._stations_lock:
@@ -512,6 +524,11 @@ class VirtualWorkbench:
 
             self._update_data_status(f"加热台{station_id}加热中: {progress:.1f}%")
 
+            # 每5秒打印一次倒计时
+            if time.time() - last_countdown_log >= 5.0:
+                self.logger.info(f"[加热台{station_id}] {material_id} 剩余 {remaining:.1f}s")
+                last_countdown_log = time.time()
+
             if elapsed >= self.HEATING_TIME:
                 break
 

unilabos/registry/devices/virtual_device.yaml

@@ -6090,6 +6090,7 @@ virtual_workbench:
           type: object
         type: UniLabJsonCommand
       auto-start_heating:
+        always_free: true
         feedback: {}
         goal: {}
         goal_default:

unilabos/registry/registry.py

@@ -838,6 +838,7 @@ class Registry:
                                         ("list", "unilabos.registry.placeholder_type:DeviceSlot"),
                                     ]
                                 },
+                                **({"always_free": True} if v.get("always_free") else {}),
                             }
                             for k, v in enhanced_info["action_methods"].items()
                             if k not in device_config["class"]["action_value_mappings"]

unilabos/ros/device_node_wrapper.py

@@ -44,8 +44,7 @@ def ros2_device_node(
     # 从属性中自动发现可发布状态
     if status_types is None:
         status_types = {}
-    if device_config is None:
+    assert device_config is not None, "device_config cannot be None"
-        raise ValueError("device_config cannot be None")
     if action_value_mappings is None:
         action_value_mappings = {}
     if hardware_interface is None:

unilabos/ros/nodes/base_device_node.py

@@ -146,7 +146,7 @@ def init_wrapper(
     device_id: str,
     device_uuid: str,
     driver_class: type[T],
-    device_config: ResourceTreeInstance,
+    device_config: ResourceDictInstance,
     status_types: Dict[str, Any],
     action_value_mappings: Dict[str, Any],
     hardware_interface: Dict[str, Any],
@@ -279,6 +279,7 @@ class BaseROS2DeviceNode(Node, Generic[T]):
         self,
         driver_instance: T,
         device_id: str,
+        registry_name: str,
         device_uuid: str,
         status_types: Dict[str, Any],
         action_value_mappings: Dict[str, Any],
@@ -300,6 +301,7 @@ class BaseROS2DeviceNode(Node, Generic[T]):
         """
         self.driver_instance = driver_instance
         self.device_id = device_id
+        self.registry_name = registry_name
         self.uuid = device_uuid
         self.publish_high_frequency = False
         self.callback_group = ReentrantCallbackGroup()
@@ -416,7 +418,9 @@ class BaseROS2DeviceNode(Node, Generic[T]):
             if len(rts.root_nodes) == 1 and isinstance(rts_plr_instances[0], RegularContainer):
                 # noinspection PyTypeChecker
                 container_instance: RegularContainer = rts_plr_instances[0]
-                found_resources = self.resource_tracker.figure_resource({"name": container_instance.name}, try_mode=True)
+                found_resources = self.resource_tracker.figure_resource(
+                    {"name": container_instance.name}, try_mode=True
+                )
                 if not len(found_resources):
                     self.resource_tracker.add_resource(container_instance)
                     logger.info(f"添加物料{container_instance.name}到资源跟踪器")
@@ -1152,6 +1156,7 @@ class BaseROS2DeviceNode(Node, Generic[T]):
                     "machine_name": BasicConfig.machine_name,
                     "type": "slave",
                     "edge_device_id": self.device_id,
+                    "registry_name": self.registry_name,
                 }
             },
             ensure_ascii=False,
@@ -1626,9 +1631,7 @@ class BaseROS2DeviceNode(Node, Generic[T]):
                             else:
                                 resolved_sample_uuids[sample_uuid] = material_uuid
                         function_args[PARAM_SAMPLE_UUIDS] = resolved_sample_uuids
-                        self.lab_logger().debug(
+                        self.lab_logger().debug(f"[JsonCommand] 注入 {PARAM_SAMPLE_UUIDS}: {resolved_sample_uuids}")
-                            f"[JsonCommand] 注入 {PARAM_SAMPLE_UUIDS}: {resolved_sample_uuids}"
-                        )
                     continue
 
                 # 处理单个 ResourceSlot
@@ -2005,6 +2008,7 @@ class ROS2DeviceNode:
 
         if driver_is_ros:
             driver_params["device_id"] = device_id
+            driver_params["registry_name"] = device_config.res_content.klass
             driver_params["resource_tracker"] = self.resource_tracker
         self._driver_instance = self._driver_creator.create_instance(driver_params)
         if self._driver_instance is None:
@@ -2022,6 +2026,7 @@ class ROS2DeviceNode:
                 children=children,
                 driver_instance=self._driver_instance,  # type: ignore
                 device_id=device_id,
+                registry_name=device_config.res_content.klass,
                 device_uuid=device_uuid,
                 status_types=status_types,
                 action_value_mappings=action_value_mappings,
@@ -2033,6 +2038,7 @@ class ROS2DeviceNode:
             self._ros_node = BaseROS2DeviceNode(
                 driver_instance=self._driver_instance,
                 device_id=device_id,
+                registry_name=device_config.res_content.klass,
                 device_uuid=device_uuid,
                 status_types=status_types,
                 action_value_mappings=action_value_mappings,
@@ -2041,6 +2047,7 @@ class ROS2DeviceNode:
                 resource_tracker=self.resource_tracker,
             )
         self._ros_node: BaseROS2DeviceNode
+        # 将注册表类型名传递给BaseROS2DeviceNode,用于slave上报
         self._ros_node.lab_logger().info(f"初始化完成 {self._ros_node.uuid} {self.driver_is_ros}")
         self.driver_instance._ros_node = self._ros_node  # type: ignore
         self.driver_instance._execute_driver_command = self._ros_node._execute_driver_command  # type: ignore

unilabos/ros/nodes/presets/camera.py

@@ -6,12 +6,13 @@ from cv_bridge import CvBridge
 from unilabos.ros.nodes.base_device_node import BaseROS2DeviceNode, DeviceNodeResourceTracker
 
 class VideoPublisher(BaseROS2DeviceNode):
-    def __init__(self, device_id='video_publisher', device_uuid='', camera_index=0, period: float = 0.1, resource_tracker: DeviceNodeResourceTracker = None):
+    def __init__(self, device_id='video_publisher', registry_name="", device_uuid='', camera_index=0, period: float = 0.1, resource_tracker: DeviceNodeResourceTracker = None):
         # 初始化BaseROS2DeviceNode，使用自身作为driver_instance
         BaseROS2DeviceNode.__init__(
             self,
             driver_instance=self,
             device_id=device_id,
+            registry_name=registry_name,
             device_uuid=device_uuid,
             status_types={},
             action_value_mappings={},

unilabos/ros/nodes/presets/controller_node.py

@@ -10,6 +10,7 @@ class ControllerNode(BaseROS2DeviceNode):
     def __init__(
         self,
         device_id: str,
+        registry_name: str,
         controller_func: Callable,
         update_rate: float,
         inputs: Dict[str, Dict[str, type | str]],
@@ -51,6 +52,7 @@ class ControllerNode(BaseROS2DeviceNode):
             self,
             driver_instance=self,
             device_id=device_id,
+            registry_name=registry_name,
             status_types=status_types,
             action_value_mappings=action_value_mappings,
             hardware_interface=hardware_interface,

unilabos/ros/nodes/presets/host_node.py

@@ -248,6 +248,7 @@ class HostNode(BaseROS2DeviceNode):
             self,
             driver_instance=self,
             device_id=device_id,
+            registry_name="host_node",
             device_uuid=host_node_dict["uuid"],
             status_types={},
             action_value_mappings=lab_registry.device_type_registry["host_node"]["class"]["action_value_mappings"],
@@ -302,7 +303,8 @@ class HostNode(BaseROS2DeviceNode):
         }  # 用来存储多个ActionClient实例
         self._action_value_mappings: Dict[str, Dict] = (
             {}
-        )  # 用来存储多个ActionClient的type, goal, feedback, result的变量名映射关系
+        )  # device_id -> action_value_mappings(本地+远程设备统一存储)
+        self._slave_registry_configs: Dict[str, Dict] = {}  # registry_name -> registry_config(含action_value_mappings)
         self._goals: Dict[str, Any] = {}  # 用来存储多个目标的状态
         self._online_devices: Set[str] = {f"{self.namespace}/{device_id}"}  # 用于跟踪在线设备
         self._last_discovery_time = 0.0  # 上次设备发现的时间
@@ -636,6 +638,8 @@ class HostNode(BaseROS2DeviceNode):
         self.device_machine_names[device_id] = "本地"
         self.devices_instances[device_id] = d
         # noinspection PyProtectedMember
+        self._action_value_mappings[device_id] = d._ros_node._action_value_mappings
+        # noinspection PyProtectedMember
         for action_name, action_value_mapping in d._ros_node._action_value_mappings.items():
             if action_name.startswith("auto-") or str(action_value_mapping.get("type", "")).startswith(
                 "UniLabJsonCommand"
@@ -1168,6 +1172,10 @@ class HostNode(BaseROS2DeviceNode):
     def _node_info_update_callback(self, request, response):
         """
         更新节点信息回调
+
+        处理两种消息:
+        1. 首次上报(main_slave_run): 带 devices_config + registry_config,存储 action_value_mappings
+        2. 设备重注册(SYNC_SLAVE_NODE_INFO): 带 edge_device_id + registry_name,用 registry_name 索引已存储的 mappings
         """
         self.lab_logger().trace(f"[Host Node] Node info update request received: {request}")
         try:
@@ -1179,12 +1187,48 @@ class HostNode(BaseROS2DeviceNode):
                 info = info["SYNC_SLAVE_NODE_INFO"]
                 machine_name = info["machine_name"]
                 edge_device_id = info["edge_device_id"]
+                registry_name = info.get("registry_name", "")
                 self.device_machine_names[edge_device_id] = machine_name
+
+                # 用 registry_name 索引已存储的 registry_config,获取 action_value_mappings
+                if registry_name and registry_name in self._slave_registry_configs:
+                    action_mappings = self._slave_registry_configs[registry_name].get(
+                        "class", {}
+                    ).get("action_value_mappings", {})
+                    if action_mappings:
+                        self._action_value_mappings[edge_device_id] = action_mappings
+                        self.lab_logger().info(
+                            f"[Host Node] Loaded {len(action_mappings)} action mappings "
+                            f"for remote device {edge_device_id} (registry: {registry_name})"
+                        )
             else:
                 devices_config = info.pop("devices_config")
                 registry_config = info.pop("registry_config")
                 if registry_config:
                     http_client.resource_registry({"resources": registry_config})
+
+                    # 存储 slave 的 registry_config,用于后续 SYNC_SLAVE_NODE_INFO 索引
+                    for reg_name, reg_data in registry_config.items():
+                        if isinstance(reg_data, dict) and "class" in reg_data:
+                            self._slave_registry_configs[reg_name] = reg_data
+
+                # 解析 devices_config,建立 device_id -> action_value_mappings 映射
+                if devices_config:
+                    for device_tree in devices_config:
+                        for device_dict in device_tree:
+                            device_id = device_dict.get("id", "")
+                            class_name = device_dict.get("class", "")
+                            if device_id and class_name and class_name in self._slave_registry_configs:
+                                action_mappings = self._slave_registry_configs[class_name].get(
+                                    "class", {}
+                                ).get("action_value_mappings", {})
+                                if action_mappings:
+                                    self._action_value_mappings[device_id] = action_mappings
+                                    self.lab_logger().info(
+                                        f"[Host Node] Stored {len(action_mappings)} action mappings "
+                                        f"for remote device {device_id} (class: {class_name})"
+                                    )
+
             self.lab_logger().debug(f"[Host Node] Node info update: {info}")
             response.response = "OK"
         except Exception as e:

unilabos/ros/nodes/presets/joint_republisher.py

@@ -7,10 +7,11 @@ from rclpy.callback_groups import ReentrantCallbackGroup
 from unilabos.ros.nodes.base_device_node import BaseROS2DeviceNode
 
 class JointRepublisher(BaseROS2DeviceNode):
-    def __init__(self,device_id,resource_tracker, **kwargs):
+    def __init__(self,device_id, registry_name, resource_tracker, **kwargs):
         super().__init__(
             driver_instance=self,
             device_id=device_id,
+            registry_name=registry_name,
             status_types={},
             action_value_mappings={},
             hardware_interface={},

unilabos/ros/nodes/presets/resource_mesh_manager.py

@@ -26,7 +26,7 @@ from unilabos.resources.graphio import initialize_resources
 from unilabos.registry.registry import lab_registry
 
 class ResourceMeshManager(BaseROS2DeviceNode):
-    def __init__(self, resource_model: dict, resource_config: list,resource_tracker, device_id: str = "resource_mesh_manager", rate=50, **kwargs):
+    def __init__(self, resource_model: dict, resource_config: list,resource_tracker, device_id: str = "resource_mesh_manager", registry_name: str = "", rate=50, **kwargs):
         """初始化资源网格管理器节点
         
         Args:
@@ -37,6 +37,7 @@ class ResourceMeshManager(BaseROS2DeviceNode):
         super().__init__(
             driver_instance=self,
             device_id=device_id,
+            registry_name=registry_name,
             status_types={},
             action_value_mappings={},
             hardware_interface={},

unilabos/ros/nodes/presets/serial_node.py

@@ -7,7 +7,7 @@ from unilabos.ros.nodes.base_device_node import BaseROS2DeviceNode, DeviceNodeRe
 
 
 class ROS2SerialNode(BaseROS2DeviceNode):
-    def __init__(self, device_id, port: str, baudrate: int = 9600, resource_tracker: DeviceNodeResourceTracker=None):
+    def __init__(self, device_id, registry_name, port: str, baudrate: int = 9600, resource_tracker: DeviceNodeResourceTracker=None):
         # 保存属性，以便在调用父类初始化前使用
         self.port = port
         self.baudrate = baudrate
@@ -28,6 +28,7 @@ class ROS2SerialNode(BaseROS2DeviceNode):
         BaseROS2DeviceNode.__init__(
             self,
             driver_instance=self,
+            registry_name=registry_name,
             device_id=device_id,
             status_types={},
             action_value_mappings={},

unilabos/ros/nodes/presets/workstation.py

@@ -47,6 +47,7 @@ class ROS2WorkstationNode(BaseROS2DeviceNode):
         *,
         driver_instance: "WorkstationBase",
         device_id: str,
+        registry_name: str,
         device_uuid: str,
         status_types: Dict[str, Any],
         action_value_mappings: Dict[str, Any],
@@ -62,6 +63,7 @@ class ROS2WorkstationNode(BaseROS2DeviceNode):
         super().__init__(
             driver_instance=driver_instance,
             device_id=device_id,
+            registry_name=registry_name,
             device_uuid=device_uuid,
             status_types=status_types,
             action_value_mappings={**action_value_mappings, **self.protocol_action_mappings},

unilabos/utils/decorator.py

@@ -184,6 +184,51 @@ def get_all_subscriptions(instance) -> list:
     return subscriptions
 
 
+def always_free(func: F) -> F:
+    """
+    标记动作为永久闲置(不受busy队列限制)的装饰器
+
+    被此装饰器标记的 action 方法，在执行时不会受到设备级别的排队限制，
+    任何时候请求都可以立即执行。适用于查询类、状态读取类等轻量级操作。
+
+    Example:
+        class MyDriver:
+            @always_free
+            def query_status(self, param: str):
+                # 这个动作可以随时执行，不需要排队
+                return self._status
+
+            def transfer(self, volume: float):
+                # 这个动作会按正常排队逻辑执行
+                pass
+
+    Note:
+        - 可以与其他装饰器组合使用，@always_free 应放在最外层
+        - 仅影响 WebSocket 调度层的 busy/free 判断，不影响 ROS2 层
+    """
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        return func(*args, **kwargs)
+
+    wrapper._is_always_free = True  # type: ignore[attr-defined]
+
+    return wrapper  # type: ignore[return-value]
+
+
+def is_always_free(func) -> bool:
+    """
+    检查函数是否被标记为永久闲置
+
+    Args:
+        func: 被检查的函数
+
+    Returns:
+        如果函数被 @always_free 装饰则返回 True，否则返回 False
+    """
+    return getattr(func, "_is_always_free", False)
+
+
 def not_action(func: F) -> F:
     """
     标记方法为非动作的装饰器

unilabos/utils/import_manager.py

@@ -29,7 +29,7 @@ from ast import Constant
 
 from unilabos.resources.resource_tracker import PARAM_SAMPLE_UUIDS
 from unilabos.utils import logger
-from unilabos.utils.decorator import is_not_action
+from unilabos.utils.decorator import is_not_action, is_always_free
 
 
 class ImportManager:
@@ -282,6 +282,9 @@ class ImportManager:
                         continue
                     # 其他非_开头的方法归类为action
                     method_info = self._analyze_method_signature(method)
+                    # 检查是否被 @always_free 装饰器标记
+                    if is_always_free(method):
+                        method_info["always_free"] = True
                     result["action_methods"][name] = method_info
 
         return result
@@ -339,6 +342,9 @@ class ImportManager:
                     if self._is_not_action_method(node):
                         continue
                     # 其他非_开头的方法归类为action
+                    # 检查是否被 @always_free 装饰器标记
+                    if self._is_always_free_method(node):
+                        method_info["always_free"] = True
                     result["action_methods"][method_name] = method_info
         return result
 
@@ -474,6 +480,13 @@ class ImportManager:
                 return True
         return False
 
+    def _is_always_free_method(self, node: ast.FunctionDef) -> bool:
+        """检查是否是@always_free装饰的方法"""
+        for decorator in node.decorator_list:
+            if isinstance(decorator, ast.Name) and decorator.id == "always_free":
+                return True
+        return False
+
     def _get_property_name_from_setter(self, node: ast.FunctionDef) -> str:
         """从setter装饰器中获取属性名"""
         for decorator in node.decorator_list: