diff --git a/app/schemas.py b/app/schemas.py
index cb46914..ee37d7d 100644
--- a/app/schemas.py
+++ b/app/schemas.py
@@ -1,18 +1,21 @@
 import os
 from pydantic import BaseModel, Field
-from typing import Optional, List
+from typing import Optional, List, Dict, Any
 from datetime import datetime
 
 
 class AlertCreate(BaseModel):
     camera_id: str = Field(..., description="摄像头标识")
     roi_id: Optional[str] = Field(None, description="ROI区域标识")
+    bind_id: Optional[str] = Field(None, description="绑定ID")
+    device_id: Optional[str] = Field(None, description="边缘设备ID")
     alert_type: str = Field(..., description="告警类型")
     algorithm: Optional[str] = Field(None, description="算法名称")
     confidence: Optional[int] = Field(None, ge=0, le=100, description="置信度")
     duration_minutes: Optional[int] = Field(None, ge=0, description="离岗时长(分钟)")
     trigger_time: datetime = Field(..., description="触发时间")
     message: Optional[str] = Field(None, description="告警消息")
+    bbox: Optional[str] = Field(None, description="检测框坐标")
 
 
 class AlertResponse(BaseModel):
@@ -20,6 +23,8 @@ class AlertResponse(BaseModel):
     alert_no: str
     camera_id: str
     roi_id: Optional[str]
+    bind_id: Optional[str]
+    device_id: Optional[str]
     alert_type: str
     algorithm: Optional[str]
     confidence: Optional[int]
@@ -27,10 +32,13 @@ class AlertResponse(BaseModel):
     trigger_time: Optional[str]
     message: Optional[str]
     snapshot_url: Optional[str]
+    bbox: Optional[Any] = None
     status: str
+    level: Optional[str]
     handle_remark: Optional[str]
     handled_by: Optional[str]
     handled_at: Optional[str]
+    work_order_id: Optional[int]
     ai_analysis: Optional[dict]
     created_at: Optional[str]
     updated_at: Optional[str]
@@ -57,10 +65,48 @@ class AlertStatisticsResponse(BaseModel):
     confirmed: int
     ignored: int
     resolved: int
+    dispatched: int = 0
     by_type: dict
-    by_level: dict
+    by_level: Optional[dict] = None
 
 
+# ==================== 设备相关 ====================
+
+class DeviceResponse(BaseModel):
+    id: int
+    device_id: str
+    device_name: Optional[str]
+    status: str
+    last_heartbeat: Optional[str]
+    uptime_seconds: Optional[int]
+    frames_processed: Optional[int]
+    alerts_generated: Optional[int]
+    extra_info: Optional[Dict[str, Any]]
+    created_at: Optional[str]
+    updated_at: Optional[str]
+
+    class Config:
+        from_attributes = True
+
+
+class DeviceListResponse(BaseModel):
+    devices: List[DeviceResponse]
+    total: int
+    page: int
+    page_size: int
+
+
+class DeviceStatisticsResponse(BaseModel):
+    total: int
+    online: int
+    offline: int
+    error: int
+
+
+# ==================== 健康检查 ====================
+
 class HealthResponse(BaseModel):
     status: str
     database: str
+    mqtt: Optional[str] = None
+    websocket_connections: Optional[int] = None