{
  "schema_version": "hardware-structure/v2",
  "unit": "mm",
  "product_id": "smart-glasses",
  "title": "智能眼镜结构评审",
  "revision": "engineering-fit-r1-20261016",
  "updated_at": "2026-10-16",
  "coordinate_system": "X=镜框宽度，Y=上下，Z=佩戴前后；原点位于鼻梁中心",
  "envelope": {
    "external": {
      "width": 148,
      "depth": 158,
      "height": 52,
      "center": [
        0,
        0,
        -20
      ]
    },
    "internal": {
      "width": 144,
      "depth": 112,
      "height": 18,
      "center": [
        0,
        0,
        -30
      ]
    },
    "wall_thickness": 1.4
  },
  "openings": [
    {
      "id": "camera-front",
      "label": "前向摄像头窗口",
      "center": [
        57,
        4,
        23
      ],
      "axis": [
        0,
        0,
        1
      ],
      "diameter": 5.2,
      "alignment_tolerance_mm": 0.25
    },
    {
      "id": "usb-temple",
      "label": "右镜腿维护接口",
      "center": [
        58,
        -1,
        -79
      ],
      "axis": [
        0,
        0,
        -1
      ],
      "width": 7.5,
      "height": 3,
      "alignment_tolerance_mm": 0.35
    }
  ],
  "parts": [
    {
      "id": "left-frame",
      "label": "左镜框",
      "group": "shell",
      "type": "rounded_frame",
      "dimensions": {
        "width": 60,
        "depth": 5.2,
        "height": 43,
        "frame_width": 4.2,
        "corner_radius": 13
      },
      "position": [
        -32,
        0,
        22
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        -1,
        0,
        0
      ],
      "material": "TR90 + 铝合金芯",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "SG-OFFICIAL-01; category-proportion interpretation"
    },
    {
      "id": "right-frame",
      "label": "右镜框",
      "group": "shell",
      "type": "rounded_frame",
      "dimensions": {
        "width": 60,
        "depth": 5.2,
        "height": 43,
        "frame_width": 4.2,
        "corner_radius": 13
      },
      "position": [
        32,
        0,
        22
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        1,
        0,
        0
      ],
      "material": "TR90 + 铝合金芯",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "SG-OFFICIAL-01; category-proportion interpretation"
    },
    {
      "id": "bridge",
      "label": "鼻梁",
      "group": "bracket",
      "type": "rounded_box",
      "dimensions": {
        "width": 18,
        "depth": 5,
        "height": 4,
        "corner_radius": 2
      },
      "position": [
        0,
        0,
        22
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        1,
        0
      ],
      "material": "钛合金",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "Bridge fit r1"
    },
    {
      "id": "left-lens",
      "label": "左镜片",
      "group": "interface",
      "type": "rounded_box",
      "dimensions": {
        "width": 51.5,
        "depth": 1.8,
        "height": 34.5,
        "corner_radius": 10.5
      },
      "position": [
        -32,
        0,
        22
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "光学 PC",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "SG-OFFICIAL-01; lens envelope pending optical drawing"
    },
    {
      "id": "right-lens",
      "label": "右镜片",
      "group": "interface",
      "type": "rounded_box",
      "dimensions": {
        "width": 51.5,
        "depth": 1.8,
        "height": 34.5,
        "corner_radius": 10.5
      },
      "position": [
        32,
        0,
        22
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "光学 PC",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "SG-OFFICIAL-01; lens envelope pending optical drawing"
    },
    {
      "id": "left-temple",
      "label": "左镜腿后耳挂（电池由独立镜腿舱容纳）",
      "group": "shell",
      "type": "curved_tube",
      "dimensions": {
        "outer_diameter": 7.2,
        "inner_diameter": 3,
        "length": 20
      },
      "position": [
        0,
        0,
        0
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        -0.6,
        0,
        -0.7
      ],
      "material": "TR90",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。",
      "path": [
        [
          -66,
          0,
          -77
        ],
        [
          -67,
          -2,
          -85
        ],
        [
          -65,
          -7,
          -92
        ]
      ]
    },
    {
      "id": "right-temple-pod",
      "label": "右镜腿电子舱",
      "group": "shell",
      "type": "rounded_frame",
      "dimensions": {
        "width": 13.5,
        "height": 15,
        "depth": 94,
        "corner_radius": 2.4,
        "frame_width": 1.2
      },
      "position": [
        58,
        0,
        -34
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0.7,
        0,
        -0.7
      ],
      "material": "镁合金内架 + TR90 外壳",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。"
    },
    {
      "id": "left-sensor-pcba",
      "label": "左侧传感器板",
      "group": "pcb",
      "type": "box",
      "dimensions": {
        "width": 8,
        "depth": 48,
        "height": 1.0
      },
      "position": [
        -66,
        3,
        -30
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        -0.5,
        0,
        0
      ],
      "material": "Rigid-flex FR-4/FPC",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。",
      "inside_envelope": true
    },
    {
      "id": "right-main-pcba",
      "label": "右侧主控板",
      "group": "pcb",
      "type": "box",
      "dimensions": {
        "width": 9,
        "depth": 62,
        "height": 1.2
      },
      "position": [
        58,
        3,
        -30
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0.5,
        0,
        0
      ],
      "material": "Rigid-flex FR-4/FPC",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。",
      "inside_envelope": true
    },
    {
      "id": "camera-module",
      "label": "前向摄像头模组",
      "group": "sensor",
      "type": "lens",
      "dimensions": {
        "diameter": 5,
        "length": 4.8
      },
      "position": [
        57,
        4,
        23
      ],
      "rotation_deg": [
        90,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "镜头模组",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "原模组几何只作空间预留；未提供精确供应商机械图，需按实际模组/光学方案核验。",
      "opening_id": "camera-front"
    },
    {
      "id": "display-prism",
      "label": "右眼显示棱镜",
      "group": "sensor",
      "type": "prism",
      "dimensions": {
        "width": 12,
        "depth": 9,
        "height": 8
      },
      "position": [
        23,
        4,
        18
      ],
      "rotation_deg": [
        0,
        -12,
        0
      ],
      "explode_vector": [
        0,
        0.5,
        0.5
      ],
      "material": "光学树脂",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "原模组几何只作空间预留；未提供精确供应商机械图，需按实际模组/光学方案核验。"
    },
    {
      "id": "camera-fov",
      "label": "摄像头视场",
      "group": "fov",
      "type": "lens",
      "dimensions": {
        "diameter": 72,
        "length": 90
      },
      "position": [
        57,
        4,
        68
      ],
      "rotation_deg": [
        90,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        0
      ],
      "material": "虚拟视场",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "70 deg FOV proposal"
    },
    {
      "id": "usb-connector",
      "label": "维护接口",
      "group": "interface",
      "type": "box",
      "dimensions": {
        "width": 7.2,
        "depth": 5.5,
        "height": 2.6
      },
      "position": [
        58,
        -1,
        -79
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        -1
      ],
      "material": "不锈钢",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。",
      "opening_id": "usb-temple"
    },
    {
      "id": "bridge-flex",
      "label": "跨鼻梁柔性互连",
      "group": "cable",
      "type": "cable",
      "dimensions": {
        "diameter": 1.2,
        "bend_radius": 6
      },
      "position": [
        0,
        0,
        0
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0.3,
        0
      ],
      "path": [
        [
          -55,
          0,
          -8
        ],
        [
          -32,
          1,
          18
        ],
        [
          0,
          1,
          24
        ],
        [
          32,
          1,
          18
        ],
        [
          55,
          0,
          -8
        ]
      ],
      "material": "柔性电路",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "Flex routing r1",
      "allowed_contacts": [
        "left-frame",
        "right-frame",
        "bridge",
        "left-temple",
        "right-temple-pod",
        "left-sensor-pcba",
        "right-main-pcba"
      ]
    },
    {
      "id": "left-hinge",
      "label": "左铰链与FPC过孔",
      "group": "bracket",
      "type": "cylinder",
      "dimensions": {
        "diameter": 7.5,
        "length": 8
      },
      "position": [
        -60,
        0,
        17
      ],
      "rotation_deg": [
        90,
        0,
        0
      ],
      "explode_vector": [
        -1,
        0,
        0
      ],
      "material": "不锈钢轴 + FPC",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "SG-SOCIAL-01; SG-TEARDOWN-01"
    },
    {
      "id": "right-hinge",
      "label": "右铰链与FPC过孔",
      "group": "bracket",
      "type": "cylinder",
      "dimensions": {
        "diameter": 7.5,
        "length": 8
      },
      "position": [
        60,
        0,
        17
      ],
      "rotation_deg": [
        90,
        0,
        0
      ],
      "explode_vector": [
        1,
        0,
        0
      ],
      "material": "不锈钢轴 + FPC",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "SG-SOCIAL-01; SG-TEARDOWN-01"
    },
    {
      "id": "nose-pad-left",
      "label": "左鼻托",
      "group": "interface",
      "type": "ellipsoid",
      "dimensions": {
        "width": 8,
        "depth": 5,
        "height": 11
      },
      "position": [
        -8,
        -10,
        20
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        -0.3,
        -1,
        0
      ],
      "material": "医用硅胶",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "佩戴工程建议"
    },
    {
      "id": "nose-pad-right",
      "label": "右鼻托",
      "group": "interface",
      "type": "ellipsoid",
      "dimensions": {
        "width": 8,
        "depth": 5,
        "height": 11
      },
      "position": [
        8,
        -10,
        20
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0.3,
        -1,
        0
      ],
      "material": "医用硅胶",
      "quantity": 1,
      "source_status": "pending_verification",
      "source_reference": "佩戴工程建议"
    },
    {
      "id": "temple-battery",
      "label": "左镜腿弧形电池",
      "group": "sensor",
      "type": "rounded_box",
      "dimensions": {
        "width": 8,
        "depth": 44,
        "height": 5.5,
        "corner_radius": 2.5
      },
      "position": [
        -66,
        -1,
        -42
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        -1,
        0,
        0
      ],
      "material": "定制锂聚合物",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。"
    },
    {
      "id": "open-ear-speaker",
      "label": "开放式扬声器",
      "group": "sensor",
      "type": "rounded_box",
      "dimensions": {
        "width": 10,
        "depth": 20,
        "height": 6,
        "corner_radius": 3
      },
      "position": [
        58,
        -2,
        -54
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        1,
        0,
        0
      ],
      "material": "微型扬声器模组",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 工程装配修订；尺寸为 design_proposed，见 engineering_update.source_constraints，非供应商 CAD 或实物确认。"
    },
    {
      "id": "privacy-led",
      "label": "拍摄隐私指示灯",
      "group": "interface",
      "type": "cylinder",
      "dimensions": {
        "diameter": 2.2,
        "length": 2.0
      },
      "position": [
        51,
        6,
        24
      ],
      "rotation_deg": [
        90,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "白色LED",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "SG-OFFICIAL-01 privacy affordance"
    },
    {
      "id": "left-temple-pod",
      "label": "左镜腿电池/传感舱",
      "group": "shell",
      "type": "rounded_frame",
      "dimensions": {
        "width": 12,
        "height": 12,
        "depth": 84,
        "corner_radius": 2,
        "frame_width": 1.2
      },
      "position": [
        -66,
        0,
        -34
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "TR90 候选；1.2 mm 名义壁厚待材料/成型验证",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 engineering-fit proposal; not vendor CAD or physical verification"
    },
    {
      "id": "left-pod-front-cap",
      "label": "left 镜腿 front 可拆端盖",
      "group": "shell",
      "type": "box",
      "dimensions": {
        "width": 12,
        "height": 12,
        "depth": 1.2
      },
      "position": [
        -66,
        0,
        7.4
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "工程设计建议材料；牌号、尺寸公差与供货待确认",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 engineering-fit proposal; not vendor CAD or physical verification"
    },
    {
      "id": "left-pod-rear-cap",
      "label": "left 镜腿 rear 可拆端盖",
      "group": "shell",
      "type": "box",
      "dimensions": {
        "width": 12,
        "height": 12,
        "depth": 1.2
      },
      "position": [
        -66,
        0,
        -75.4
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "工程设计建议材料；牌号、尺寸公差与供货待确认",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 engineering-fit proposal; not vendor CAD or physical verification"
    },
    {
      "id": "right-pod-front-cap",
      "label": "right 镜腿 front 可拆端盖",
      "group": "shell",
      "type": "box",
      "dimensions": {
        "width": 13.5,
        "height": 15,
        "depth": 1.2
      },
      "position": [
        58,
        0,
        12.4
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "工程设计建议材料；牌号、尺寸公差与供货待确认",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 engineering-fit proposal; not vendor CAD or physical verification"
    },
    {
      "id": "right-pod-rear-cap",
      "label": "right 镜腿 rear 可拆端盖",
      "group": "shell",
      "type": "box",
      "dimensions": {
        "width": 13.5,
        "height": 15,
        "depth": 1.2
      },
      "position": [
        58,
        0,
        -80.4
      ],
      "rotation_deg": [
        0,
        0,
        0
      ],
      "explode_vector": [
        0,
        0,
        1
      ],
      "material": "工程设计建议材料；牌号、尺寸公差与供货待确认",
      "quantity": 1,
      "source_status": "design_proposed",
      "source_reference": "2026-10-16 engineering-fit proposal; not vendor CAD or physical verification"
    }
  ],
  "relations": [
    {
      "id": "camera-normal",
      "type": "optical_angle",
      "part_ids": [
        "camera-module",
        "camera-fov"
      ],
      "axis_a": [
        0,
        0,
        1
      ],
      "axis_b": [
        0,
        0,
        1
      ],
      "expected_deg": 0,
      "tolerance_deg": 1,
      "description": "摄像头光轴与视场中心一致"
    },
    {
      "id": "display-bracket",
      "type": "bracket_axis",
      "part_ids": [
        "display-prism",
        "right-frame"
      ],
      "axis_a": [
        0.2079,
        0,
        0.9781
      ],
      "axis_b": [
        0,
        0,
        1
      ],
      "expected_deg": 12,
      "tolerance_deg": 1,
      "description": "显示棱镜相对镜片法向偏转 12 度"
    },
    {
      "id": "temple-clearance",
      "type": "clearance",
      "part_ids": [
        "right-main-pcba",
        "right-temple-pod"
      ],
      "clearance_mm": 1.4,
      "description": "主板与镜腿内壁间隙"
    }
  ],
  "engineering_boundary": "2026-10-16 工程装配提案：已修正列出的名义几何矛盾并建立可执行空间校验。所有新增/改动尺寸为 design_proposed；不是供应商原生 CAD，不证明公差、材料、强度、热、密封、射频、传感性能或量产放行。现有概念照片仅保留为外观参考，后续需供应商图纸和样机验证。",
  "assemblies": [
    {
      "id": "exterior",
      "label": "外观与承力结构",
      "part_ids": [
        "left-frame",
        "right-frame",
        "bridge",
        "left-temple",
        "right-temple-pod",
        "left-hinge",
        "right-hinge"
      ]
    },
    {
      "id": "electronics",
      "label": "电子与功能模组",
      "part_ids": [
        "left-sensor-pcba",
        "right-main-pcba",
        "camera-module",
        "display-prism",
        "temple-battery",
        "open-ear-speaker"
      ]
    },
    {
      "id": "interfaces",
      "label": "接口、线缆与工作路径",
      "part_ids": [
        "left-lens",
        "right-lens",
        "camera-fov",
        "usb-connector",
        "bridge-flex",
        "nose-pad-left",
        "nose-pad-right",
        "privacy-led"
      ]
    },
    {
      "id": "engineering-fit-components",
      "label": "2026-10-16 装配修订实体零件",
      "part_ids": [
        "left-temple-pod",
        "left-pod-front-cap",
        "left-pod-rear-cap",
        "right-pod-front-cap",
        "right-pod-rear-cap"
      ]
    }
  ],
  "patterns": [],
  "interfaces": [
    {
      "id": "interface-01",
      "part_id": "left-lens",
      "opening_id": null,
      "purpose": "左镜片"
    },
    {
      "id": "interface-02",
      "part_id": "right-lens",
      "opening_id": null,
      "purpose": "右镜片"
    },
    {
      "id": "interface-03",
      "part_id": "usb-connector",
      "opening_id": "usb-temple",
      "purpose": "维护接口"
    },
    {
      "id": "interface-04",
      "part_id": "nose-pad-left",
      "opening_id": null,
      "purpose": "左鼻托"
    },
    {
      "id": "interface-05",
      "part_id": "nose-pad-right",
      "opening_id": null,
      "purpose": "右鼻托"
    },
    {
      "id": "interface-06",
      "part_id": "privacy-led",
      "opening_id": null,
      "purpose": "拍摄隐私指示灯"
    },
    {
      "id": "hinge-flex-zone",
      "part_ids": [
        "left-hinge",
        "right-hinge",
        "bridge-flex",
        "left-temple-pod",
        "right-temple-pod"
      ],
      "purpose": "铰链动态 FPC 区仅留软板，禁止元件/过孔；弯曲半径、应变释放和带电 10000 次寿命需按实际叠层验证。",
      "status": "design_proposed",
      "minimum_bend_radius_status": "pending_fpc_supplier_stackup"
    },
    {
      "id": "camera-privacy-pair",
      "part_ids": [
        "camera-module",
        "privacy-led"
      ],
      "purpose": "固定可见隐私灯与相机窗口，摄像通电/故障反馈硬件关联由电路验证；摄像头版本须冻结。",
      "status": "design_proposed"
    },
    {
      "id": "left-battery-swelling",
      "part_ids": [
        "temple-battery",
        "left-temple-pod"
      ],
      "purpose": "电池上下留装配和胀厚空间；不能以本次 8×44×5.5 mm 预留替代电芯供应商最大胀厚。",
      "status": "design_proposed"
    }
  ],
  "cables": [
    {
      "part_id": "bridge-flex",
      "path": [
        [
          -55,
          0,
          -8
        ],
        [
          -32,
          1,
          18
        ],
        [
          0,
          1,
          24
        ],
        [
          32,
          1,
          18
        ],
        [
          55,
          0,
          -8
        ]
      ]
    }
  ],
  "assembly_steps": [
    {
      "id": "step-02",
      "sequence": 2,
      "label": "电子与功能模组",
      "part_ids": [
        "left-sensor-pcba",
        "right-main-pcba",
        "camera-module",
        "display-prism",
        "temple-battery",
        "open-ear-speaker"
      ],
      "direction": [
        0,
        1,
        0
      ],
      "status": "design_proposed"
    },
    {
      "id": "step-03",
      "sequence": 3,
      "label": "接口、线缆与工作路径",
      "part_ids": [
        "left-lens",
        "right-lens",
        "camera-fov",
        "usb-connector",
        "bridge-flex",
        "nose-pad-left",
        "nose-pad-right",
        "privacy-led"
      ],
      "direction": [
        0,
        0,
        1
      ],
      "status": "pending_verification"
    },
    {
      "id": "step-04",
      "sequence": 4,
      "label": "外观与承力结构",
      "part_ids": [
        "left-frame",
        "right-frame",
        "bridge",
        "left-temple",
        "right-temple-pod",
        "left-hinge",
        "right-hinge"
      ],
      "direction": [
        0,
        1,
        0
      ],
      "status": "design_proposed"
    },
    {
      "id": "engineering-step-4",
      "sequence": 4,
      "label": "先将电芯装左镜腿下层、传感 PCB 装上层；右镜腿主板与声学模组分层；接铰链 FPC、检验隐私灯后装端盖。",
      "part_ids": [
        "left-temple-pod",
        "temple-battery",
        "left-sensor-pcba",
        "right-main-pcba",
        "open-ear-speaker",
        "left-pod-front-cap",
        "left-pod-rear-cap",
        "right-pod-front-cap",
        "right-pod-rear-cap"
      ],
      "direction": [
        0,
        0,
        1
      ],
      "status": "design_proposed"
    }
  ],
  "validation_rules": [
    {
      "id": "internal-envelope-rule",
      "type": "inside_envelope",
      "severity": "error"
    },
    {
      "id": "opening-alignment-rule",
      "type": "opening_alignment",
      "severity": "error"
    },
    {
      "id": "service-direction-rule",
      "type": "assembly_direction",
      "severity": "warning"
    },
    {
      "id": "left-temple-cavity-fit",
      "type": "part_inside_cavity",
      "cavity_id": "left-temple-cavity",
      "part_ids": [
        "temple-battery",
        "left-sensor-pcba"
      ],
      "minimum_clearance_mm": 0.2,
      "severity": "error",
      "evaluator": "scripts/verify_priority_structure_geometry.py"
    },
    {
      "id": "right-temple-cavity-fit",
      "type": "part_inside_cavity",
      "cavity_id": "right-temple-cavity",
      "part_ids": [
        "right-main-pcba",
        "open-ear-speaker"
      ],
      "minimum_clearance_mm": 0.2,
      "severity": "error",
      "evaluator": "scripts/verify_priority_structure_geometry.py"
    },
    {
      "id": "left-battery-board-gap",
      "type": "nonoverlap",
      "part_ids": [
        "temple-battery",
        "left-sensor-pcba"
      ],
      "minimum_clearance_mm": 0.5,
      "severity": "error",
      "evaluator": "scripts/verify_priority_structure_geometry.py"
    },
    {
      "id": "speaker-board-gap",
      "type": "nonoverlap",
      "part_ids": [
        "open-ear-speaker",
        "right-main-pcba"
      ],
      "minimum_clearance_mm": 1,
      "severity": "error",
      "evaluator": "scripts/verify_priority_structure_geometry.py"
    }
  ],
  "dimension_sources": [
    {
      "id": "confirmed-inputs",
      "status": "customer_confirmed",
      "scope": "客户已确认的产品目标尺寸",
      "reference": "项目需求基线"
    },
    {
      "id": "supplier-mechanical",
      "status": "supplier_drawing",
      "scope": "器件与连接器机械包络",
      "reference": "候选器件机械图"
    },
    {
      "id": "design-values",
      "status": "design_proposed",
      "scope": "外壳、支架与空间关系",
      "reference": "结构设计建议"
    },
    {
      "id": "physical-verification",
      "status": "pending_verification",
      "scope": "公差、材料和装配可靠性",
      "reference": "样机实测待完成"
    },
    {
      "id": "public-analog-references",
      "status": "design_proposed",
      "scope": "公开成品、拆解和社区资料只用于同类结构推导，不构成本项目确认尺寸",
      "reference": "SG-OFFICIAL-01, SG-SOCIAL-01, SG-TEARDOWN-01"
    },
    {
      "id": "engineering-fit-20261016",
      "status": "design_proposed",
      "scope": "7 案例的腔体、部件包络、功能基准与装配修订",
      "reference": "docs/engineering/traffic-production-20261016/README.md; engineering_update.source_constraints"
    }
  ],
  "visual_assets": [
    {
      "id": "product-concept-photo",
      "type": "ai_generated_concept_photo",
      "url": "/hardware-structure/photos/smart-glasses-photo-v1.jpg",
      "source_status": "ai_generated_concept",
      "revision": "photo-v1",
      "truth_boundary": {
        "zh": "AI 生成的产品概念照片，用于表达外观与使用场景，不是量产实物摄影。",
        "en": "AI-generated product concept image for form and use context; not a photograph of a manufactured unit."
      }
    },
    {
      "id": "structure-thumbnail",
      "type": "structure_preview",
      "url": "/hardware-structure/thumbnails/smart-glasses.svg"
    },
    {
      "id": "reference-pack",
      "type": "internal_reference_manifest",
      "url": "/hardware-structure/specs/reference-packs/smart-glasses.reference-pack.v1.json"
    }
  ],
  "reference_pack_url": "/hardware-structure/specs/reference-packs/smart-glasses.reference-pack.v1.json",
  "reference_policy": {
    "source_media_use": "internal_reference_only",
    "public_output": "original_parameter_model_and_render_only",
    "engineering_authority": "public references do not confirm project dimensions"
  },
  "assumptions": [
    "公开参考包用于校准产品类别语义和装配逻辑：日常眼镜轮廓内分布相机、音频、主控、电池、FPC 与铰链，不阻挡主要视野。",
    "任何来自成品图片的不可见尺寸均保持设计建议值或待实物复核，不反向声明为供应商图纸。",
    "公开页面仅展示本站原创参数模型和渲染，不热链或复制参考图片。",
    "本次实际装配几何优先于旧照片投影和原型模板；未执行的环境、强度、寿命及校准测试不因名义空间检查通过而完成。"
  ],
  "engineering_update": {
    "revision": "engineering-fit-r1-20261016",
    "supersedes_revision": "r1-v2-assembly-ref2",
    "status": "design_proposed",
    "production_ready": false,
    "physical_verified": false,
    "geometry_review_status": "pending_physical_validation",
    "source_constraints": [
      {
        "id": "wroom-width",
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
        "constraint": "18 mm 宽 WROOM 不可装入此 11.1 mm 净宽镜腿；保留主板预留，但不表示现有开发板已经能小型化。",
        "application": "source_constraint_only_proposed_geometry_not_vendor_drawing"
      },
      {
        "id": "camera-variant",
        "url": "https://wiki.seeedstudio.com/xiao_esp32s3_getting_started/",
        "constraint": "Sense 摄像头存在 OV3660/OV5640 AF 过渡变体，镜头/FPC/窗口机械包络必须绑定实际采购批次。",
        "application": "source_constraint_only_proposed_geometry_not_vendor_drawing"
      },
      {
        "id": "fpc-hinge",
        "url": "https://www.we-online.com/files/pdf1/design-guide-flex-solutions-cbt-en.pdf",
        "constraint": "动态弯折设计须依据 FPC 叠层和铜厚，不能把概念弯曲曲线当寿命证据。",
        "application": "source_constraint_only_proposed_geometry_not_vendor_drawing"
      }
    ],
    "remaining_gates": [
      "电池、扬声器、镜头及铰链具体型号/最大包络待冻结；端盖开孔和鼻托人体工学仍待实物。",
      "6 轴 IMU、佩戴检测、触摸功能保留；display-prism 仅保留独立 AR 空间研究，摄像音频 BOM 不宣称实现 AR。",
      "薄壁成型、总重量、左右平衡、热、FPC 寿命和皮肤接触表面尚未验证。"
    ],
    "check_scope": "仅验证所列名义空间、功能位置和装配关系；不代表完整碰撞、强度、密封、电气或量产验收。",
    "proposal_status": "proposed",
    "design_changes": [
      {
        "id": "fit-change-1",
        "title": "建立镜腿真实舱体",
        "summary": "左电芯移入9.6×9.6×81.6 mm净空，传感PCB上置；右主板与扬声器分层，补齐可拆端盖。",
        "part_ids": [
          "left-temple-pod",
          "temple-battery",
          "left-sensor-pcba",
          "right-temple-pod",
          "right-main-pcba",
          "open-ear-speaker"
        ]
      },
      {
        "id": "fit-change-2",
        "title": "限定板卡和动态互连",
        "summary": "18 mm WROOM仍不适配11.1 mm镜腿净宽；保留该阻断，并明确铰链FPC无元件区与摄像头版本门槛。",
        "part_ids": [
          "bridge-flex",
          "left-hinge",
          "right-hinge",
          "camera-module"
        ]
      }
    ]
  },
  "cavities": [
    {
      "id": "left-temple-cavity",
      "owner_part_id": "left-temple-pod",
      "shape": "box",
      "dimensions": {
        "width": 9.6,
        "height": 9.6,
        "depth": 81.6
      },
      "center": [
        -66,
        0,
        -34
      ],
      "part_ids": [
        "temple-battery",
        "left-sensor-pcba"
      ],
      "source_status": "design_proposed",
      "wall_and_service_note": "净空按名义尺寸定义；圆角、紧固件、密封及制造公差需后续 CAD/实物确认。"
    },
    {
      "id": "right-temple-cavity",
      "owner_part_id": "right-temple-pod",
      "shape": "box",
      "dimensions": {
        "width": 11.1,
        "height": 12.6,
        "depth": 91.6
      },
      "center": [
        58,
        0,
        -34
      ],
      "part_ids": [
        "right-main-pcba",
        "open-ear-speaker"
      ],
      "source_status": "design_proposed",
      "wall_and_service_note": "净空按名义尺寸定义；圆角、紧固件、密封及制造公差需后续 CAD/实物确认。"
    }
  ]
}