[
  {
    "device_id": "DV-A101-01",
    "complex_id": "CX-A101",
    "device_type": "로비DID",
    "last_seen_at": "2026-09-06T21:14:00",
    "app_version": "3.2.1",
    "screen_size": "1920x1080",
    "install_spot": "101동 로비",
    "note": null
  },
  {
    "device_id": "DV-A101-02",
    "complex_id": "CX-A101",
    "device_type": "정문키오스크",
    "last_seen_at": "2026-09-08T08:55:00",
    "app_version": "3.4.0",
    "screen_size": "1080x1920",
    "install_spot": "정문 경비실 옆",
    "note": null
  },
  {
    "device_id": "DV-B204-01",
    "complex_id": "CX-B204",
    "device_type": "승강기사이니지",
    "last_seen_at": "2026-09-08T08:58:00",
    "app_version": "3.4.0",
    "screen_size": "1080x1920",
    "install_spot": "204동 승강기 1호기",
    "note": null
  },
  {
    "device_id": "DV-B204-02",
    "complex_id": "CX-B204",
    "device_type": "로비DID",
    "last_seen_at": "2026-09-08T08:59:00",
    "app_version": "3.4.0",
    "screen_size": "1920x1080",
    "install_spot": "204동 로비",
    "note": null
  },
  {
    "device_id": "DV-C307-01",
    "complex_id": "CX-C307",
    "device_type": "정문키오스크",
    "last_seen_at": "2026-09-08T08:57:00",
    "app_version": "3.4.0",
    "screen_size": "1080x1920",
    "install_spot": "정문 세로 거치대",
    "note": "세로로 세워 단 기기입니다"
  },
  {
    "device_id": "DV-C307-02",
    "complex_id": "CX-C307",
    "device_type": "승강기사이니지",
    "last_seen_at": "2026-09-08T08:56:00",
    "app_version": "3.4.0",
    "screen_size": "1080x1920",
    "install_spot": "307동 승강기 2호기",
    "note": null
  },
  {
    "device_id": "DV-D412-01",
    "complex_id": "CX-D412",
    "device_type": "로비DID",
    "last_seen_at": "2026-09-08T08:59:30",
    "app_version": "3.4.0",
    "screen_size": "1920x1080",
    "install_spot": "412동 로비",
    "note": null
  },
  {
    "device_id": "DV-D412-02",
    "complex_id": "CX-D412",
    "device_type": "로비DID",
    "last_seen_at": "2026-09-08T08:59:10",
    "app_version": "3.4.0",
    "screen_size": null,
    "install_spot": "413동 로비",
    "note": "설치 직후라 화면 크기를 아직 못 받았습니다"
  },
  {
    "device_id": "DV-E520-01",
    "complex_id": "CX-E520",
    "device_type": "로비DID",
    "last_seen_at": "2026-09-08T08:50:00",
    "app_version": "3.1.0",
    "screen_size": "1920x1080",
    "install_spot": "520동 로비",
    "note": null
  },
  {
    "device_id": "DV-F631-01",
    "complex_id": "CX-F631",
    "device_type": "단지POS",
    "last_seen_at": "2026-09-08T08:45:00",
    "app_version": "3.4.0",
    "screen_size": "1024x600",
    "install_spot": "커뮤니티 카페 계산대",
    "note": null
  }
]