diff --git a/aibox_sophon_adapter/models/alarm_models.py b/aibox_sophon_adapter/models/alarm_models.py
index cc46986..fe9e422 100644
--- a/aibox_sophon_adapter/models/alarm_models.py
+++ b/aibox_sophon_adapter/models/alarm_models.py
@@ -14,6 +14,8 @@ from pydantic import BaseModel, Field
 
 class GpsInfo(BaseModel):
     """GPS 位置信息"""
+    model_config = {"extra": "allow"}
+
     available: bool = Field(default=False, description="是否有 GPS 功能")
     kSpeed: float = Field(default=0.0, description="对地速度 (km/h)")
     nSpeed: float = Field(default=0.0, description="对地速率 (节)")
@@ -24,6 +26,8 @@ class GpsInfo(BaseModel):
 
 class MediaInfo(BaseModel):
     """视频通道信息"""
+    model_config = {"extra": "allow"}
+
     MediaName: str = Field(default="", description="通道标识")
     MediaDesc: str = Field(default="", description="通道描述")
     MediaUrl: str = Field(default="", description="通道视频流地址")
@@ -37,6 +41,8 @@ class MediaInfo(BaseModel):
 
 class ResultProperty(BaseModel):
     """告警 Result 中的属性项"""
+    model_config = {"extra": "allow"}
+
     property: str = Field(default="", description="属性标识")
     desc: str = Field(default="", description="属性描述")
     value: Any = Field(default=None, description="属性值（String/Int/Float）")
@@ -90,7 +96,7 @@ class AlarmReportRequest(BaseModel):
     LocalLabeledPath: str = Field(default="", description="有标注告警图在盒子中的相对路径")
 
     # 通道信息
-    Media: MediaInfo = Field(default_factory=MediaInfo, description="配置的媒体通道")
+    Media: Optional[MediaInfo] = Field(default=None, description="配置的媒体通道")
 
     # 违规描述
     Summary: str = Field(default="", description="违规类型（NoHelmet / Intrude / PeopleCross 等）")
@@ -109,10 +115,10 @@ class AlarmReportRequest(BaseModel):
     VideoFile: str = Field(default="", description="关联的视频标识（视频上传接口返回）")
 
     # GPS
-    GPS: GpsInfo = Field(default_factory=GpsInfo, description="当前位置信息")
+    GPS: Optional[GpsInfo] = Field(default=None, description="当前位置信息")
 
     # 违规结果
-    Result: AlarmResult = Field(default_factory=AlarmResult, description="违规检测结果")
+    Result: Optional[AlarmResult] = Field(default=None, description="违规检测结果")
 
     # 预留字段
     Type: int = Field(default=0, description="预留字段")
diff --git a/aibox_sophon_adapter/routes.py b/aibox_sophon_adapter/routes.py
index ec90334..a86f7c8 100644
--- a/aibox_sophon_adapter/routes.py
+++ b/aibox_sophon_adapter/routes.py
@@ -116,8 +116,8 @@ async def alarm_report(body: AlarmReportRequest) -> AlarmReportResponse:
     返回格式：{"Result": {"Code": 0, "Desc": ""}}
     仅当 HTTP 200 + Code 非 0 时，盒子认为上报失败。
     """
-    # 获取完整报文（含 extra 字段）
-    full_data = body.model_dump()
+    # 获取完整报文（含 extra 字段，排除 None 值以生成整洁 JSON）
+    full_data = body.model_dump(exclude_none=True)
 
     board_id = full_data.get("BoardId", "")
     board_ip = full_data.get("BoardIp", "")