{
    "camera": [
      {"sn": "234000035", "title": "前左避障"},
      {"sn": "233801341", "title": "前右避障"},
      {"sn": "233800055", "title": "后左避障"},
      {"sn": "233800056", "title": "后右避障"},
      {"sn": "233900305", "title": "前右上轨"},
      {"sn": "233900303", "title": "后左上轨"}
    ]
  }