{
  "resourceType" : "Observation",
  "id" : "DaType2PghdAlarmExample",
  "meta" : {
    "profile" : ["http://connectdtx.kr/fhir/StructureDefinition/janusync-device-data-observation"]
  },
  "status" : "final",
  "code" : {
    "coding" : [{
      "system" : "http://connectdtx.kr/fhir/CodeSystem/janusync-device-data",
      "code" : "ventilator.alarm.low-battery",
      "display" : "배터리 부족"
    }]
  },
  "effectivePeriod" : {
    "start" : "2026-04-20T09:00:00+09:00",
    "end" : "2026-04-20T10:00:00+09:00"
  },
  "valueBoolean" : true
}