{
    "nodes": [
        {
            "id": "workbench_1",
            "name": "虚拟工作台",
            "children": [],
            "parent": null,
            "type": "device",
            "class": "virtual_workbench",
            "position": {
                "x": 400,
                "y": 300,
                "z": 0
            },
            "config": {
                "arm_operation_time": 3.0,
                "heating_time": 10.0,
                "num_heating_stations": 3
            },
            "data": {
                "status": "Ready",
                "arm_state": "idle",
                "message": "工作台就绪"
            }
        }
    ],
    "links": []
}