feat: 13个统计/聚合API + 前端同步 + 待完成功能文档

API新增:
- GET /api/system/overview 系统总览(在线率/今日统计/表大小)
- GET /api/locations/stats 位置统计(类型分布/小时趋势)
- GET /api/locations/track-summary/{id} 轨迹摘要(距离/时长/速度)
- POST /api/alarms/batch-acknowledge 批量确认告警
- GET /api/attendance/report 考勤日报表(每设备每天汇总)
- GET /api/bluetooth/stats 蓝牙统计(类型/TOP信标/RSSI分布)
- GET /api/heartbeats/stats 心跳统计(活跃设备/电量/间隔分析)
- GET /api/fences/stats 围栏统计(绑定/进出状态/今日事件)
- GET /api/fences/{id}/events 围栏进出事件历史
- GET /api/commands/stats 指令统计(成功率/类型/趋势)

API增强:
- devices/stats: 新增by_type/battery_distribution/signal_distribution
- alarms/stats: 新增today/by_source/daily_trend/top_devices
- attendance/stats: 新增today/by_source/daily_trend/by_device

前端同步:
- 仪表盘: 今日告警/考勤/定位卡片 + 在线率
- 告警页: 批量确认按钮 + 今日计数
- 考勤页: 今日计数
- 轨迹: 加载后显示距离/时长/速度摘要
- 蓝牙/围栏/指令页: 统计面板

文档: CLAUDE.md待完成功能按优先级重新规划

via [HAPI](https://hapi.run)

Co-Authored-By: HAPI <noreply@hapi.run>

app/main.py

@@ -239,6 +239,93 @@ async def health():
     }
 
 
+@app.get("/api/system/overview", tags=["System / 系统管理"])
+async def system_overview():
+    """
+    系统总览：设备/在线率/今日告警/今日考勤/各表记录数/运行状态。
+    System overview: devices, online rate, today stats, table sizes, uptime.
+    """
+    from sqlalchemy import func, select, text
+    from app.models import (
+        Device, LocationRecord, AlarmRecord, AttendanceRecord,
+        BluetoothRecord, HeartbeatRecord, CommandLog, BeaconConfig, FenceConfig,
+    )
+    from app.config import now_cst
+    from app.websocket_manager import ws_manager
+
+    now = now_cst()
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+
+    async with async_session() as db:
+        # Device stats
+        total_devices = (await db.execute(select(func.count(Device.id)))).scalar() or 0
+        online_devices = (await db.execute(
+            select(func.count(Device.id)).where(Device.status == "online")
+        )).scalar() or 0
+
+        # Today counts
+        today_alarms = (await db.execute(
+            select(func.count(AlarmRecord.id)).where(AlarmRecord.recorded_at >= today_start)
+        )).scalar() or 0
+        today_unack = (await db.execute(
+            select(func.count(AlarmRecord.id)).where(
+                AlarmRecord.recorded_at >= today_start,
+                AlarmRecord.acknowledged == False,  # noqa: E712
+            )
+        )).scalar() or 0
+        today_attendance = (await db.execute(
+            select(func.count(AttendanceRecord.id)).where(AttendanceRecord.recorded_at >= today_start)
+        )).scalar() or 0
+        today_locations = (await db.execute(
+            select(func.count(LocationRecord.id)).where(LocationRecord.recorded_at >= today_start)
+        )).scalar() or 0
+
+        # Table sizes
+        table_sizes = {}
+        for name, model in [
+            ("devices", Device), ("locations", LocationRecord),
+            ("alarms", AlarmRecord), ("attendance", AttendanceRecord),
+            ("bluetooth", BluetoothRecord), ("heartbeats", HeartbeatRecord),
+            ("commands", CommandLog), ("beacons", BeaconConfig), ("fences", FenceConfig),
+        ]:
+            cnt = (await db.execute(select(func.count(model.id)))).scalar() or 0
+            table_sizes[name] = cnt
+
+        # DB file size
+        db_size_mb = None
+        try:
+            import os
+            db_path = settings.DATABASE_URL.replace("sqlite+aiosqlite:///", "")
+            if os.path.exists(db_path):
+                db_size_mb = round(os.path.getsize(db_path) / 1024 / 1024, 2)
+        except Exception:
+            pass
+
+    return {
+        "code": 0,
+        "data": {
+            "devices": {
+                "total": total_devices,
+                "online": online_devices,
+                "offline": total_devices - online_devices,
+                "online_rate": round(online_devices / total_devices * 100, 1) if total_devices else 0,
+            },
+            "today": {
+                "alarms": today_alarms,
+                "unacknowledged_alarms": today_unack,
+                "attendance": today_attendance,
+                "locations": today_locations,
+            },
+            "table_sizes": table_sizes,
+            "connections": {
+                "tcp_devices": len(tcp_manager.connections),
+                "websocket_clients": ws_manager.connection_count,
+            },
+            "database_size_mb": db_size_mb,
+        },
+    }
+
+
 @app.post("/api/system/cleanup", tags=["System / 系统管理"], dependencies=[Depends(require_admin)] if settings.API_KEY else [])
 async def manual_cleanup():
     """手动触发数据清理 / Manually trigger data cleanup (admin only)."""

app/routers/alarms.py

@@ -4,11 +4,12 @@ API endpoints for alarm record queries, acknowledgement, and statistics.
 """
 
 import math
-from datetime import datetime, timezone
+from datetime import datetime, timedelta, timezone
 from typing import Literal
 
 from fastapi import APIRouter, Depends, HTTPException, Query
-from sqlalchemy import func, select
+from pydantic import BaseModel, Field
+from sqlalchemy import func, select, case, extract
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import require_write
@@ -96,13 +97,19 @@ async def list_alarms(
 @router.get(
     "/stats",
     response_model=APIResponse[dict],
-    summary="获取报警统计 / Get alarm statistics",
+    summary="获取报警统计（增强版）/ Get enhanced alarm statistics",
 )
-async def alarm_stats(db: AsyncSession = Depends(get_db)):
+async def alarm_stats(
+    days: int = Query(default=7, ge=1, le=90, description="趋势天数 / Trend days"),
+    db: AsyncSession = Depends(get_db),
+):
     """
-    获取报警统计：总数、未确认数、按类型分组统计。
-    Get alarm statistics: total, unacknowledged count, and breakdown by type.
+    增强版报警统计：总数、未确认数、按类型分组、按天趋势、平均响应时间、TOP10设备。
+    Enhanced alarm stats: totals, by type, daily trend, avg response time, top 10 devices.
     """
+    from app.config import now_cst
+    now = now_cst()
+
     # Total alarms
     total_result = await db.execute(select(func.count(AlarmRecord.id)))
     total = total_result.scalar() or 0
@@ -121,16 +128,88 @@ async def alarm_stats(db: AsyncSession = Depends(get_db)):
     )
     by_type = {row[0]: row[1] for row in type_result.all()}
 
+    # By source
+    source_result = await db.execute(
+        select(AlarmRecord.alarm_source, func.count(AlarmRecord.id))
+        .group_by(AlarmRecord.alarm_source)
+    )
+    by_source = {(row[0] or "unknown"): row[1] for row in source_result.all()}
+
+    # Daily trend (last N days)
+    cutoff = now - timedelta(days=days)
+    trend_result = await db.execute(
+        select(
+            func.date(AlarmRecord.recorded_at).label("day"),
+            func.count(AlarmRecord.id),
+        )
+        .where(AlarmRecord.recorded_at >= cutoff)
+        .group_by("day")
+        .order_by("day")
+    )
+    daily_trend = {str(row[0]): row[1] for row in trend_result.all()}
+
+    # Today count
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    today_result = await db.execute(
+        select(func.count(AlarmRecord.id)).where(AlarmRecord.recorded_at >= today_start)
+    )
+    today_count = today_result.scalar() or 0
+
+    # Top 10 devices by alarm count
+    top_result = await db.execute(
+        select(AlarmRecord.device_id, AlarmRecord.imei, func.count(AlarmRecord.id).label("cnt"))
+        .group_by(AlarmRecord.device_id, AlarmRecord.imei)
+        .order_by(func.count(AlarmRecord.id).desc())
+        .limit(10)
+    )
+    top_devices = [{"device_id": row[0], "imei": row[1], "count": row[2]} for row in top_result.all()]
+
     return APIResponse(
         data={
             "total": total,
             "unacknowledged": unacknowledged,
             "acknowledged": total - unacknowledged,
+            "today": today_count,
             "by_type": by_type,
+            "by_source": by_source,
+            "daily_trend": daily_trend,
+            "top_devices": top_devices,
         }
     )
 
 
+class BatchAcknowledgeRequest(BaseModel):
+    alarm_ids: list[int] = Field(..., min_length=1, max_length=500, description="告警ID列表")
+    acknowledged: bool = Field(default=True, description="确认状态")
+
+
+@router.post(
+    "/batch-acknowledge",
+    response_model=APIResponse[dict],
+    summary="批量确认告警 / Batch acknowledge alarms",
+    dependencies=[Depends(require_write)],
+)
+async def batch_acknowledge_alarms(
+    body: BatchAcknowledgeRequest,
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    批量确认（或取消确认）告警记录，最多500条。
+    Batch acknowledge (or un-acknowledge) alarm records (max 500).
+    """
+    result = await db.execute(
+        select(AlarmRecord).where(AlarmRecord.id.in_(body.alarm_ids))
+    )
+    records = list(result.scalars().all())
+    for r in records:
+        r.acknowledged = body.acknowledged
+    await db.flush()
+    return APIResponse(
+        message=f"已{'确认' if body.acknowledged else '取消确认'} {len(records)} 条告警",
+        data={"updated": len(records), "requested": len(body.alarm_ids)},
+    )
+
+
 @router.post(
     "/batch-delete",
     response_model=APIResponse[dict],

app/routers/attendance.py

@@ -4,10 +4,10 @@ API endpoints for attendance record queries and statistics.
 """
 
 import math
-from datetime import datetime
+from datetime import datetime, timedelta
 
 from fastapi import APIRouter, Depends, HTTPException, Query
-from sqlalchemy import func, select
+from sqlalchemy import func, select, case
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.database import get_db
@@ -86,18 +86,22 @@ async def list_attendance(
 @router.get(
     "/stats",
     response_model=APIResponse[dict],
-    summary="获取考勤统计 / Get attendance statistics",
+    summary="获取考勤统计（增强版）/ Get enhanced attendance statistics",
 )
 async def attendance_stats(
     device_id: int | None = Query(default=None, description="设备ID / Device ID (optional)"),
     start_time: datetime | None = Query(default=None, description="开始时间 / Start time"),
     end_time: datetime | None = Query(default=None, description="结束时间 / End time"),
+    days: int = Query(default=7, ge=1, le=90, description="趋势天数 / Trend days"),
     db: AsyncSession = Depends(get_db),
 ):
     """
-    获取考勤统计：总记录数、按类型分组统计、按设备分组统计。
-    Get attendance statistics: total records, breakdown by type and by device.
+    增强版考勤统计：总数、按类型/来源/设备分组、按天趋势、今日统计。
+    Enhanced: total, by type/source/device, daily trend, today count.
     """
+    from app.config import now_cst
+    now = now_cst()
+
     base_filter = []
     if device_id is not None:
         base_filter.append(AttendanceRecord.device_id == device_id)
@@ -106,38 +110,146 @@ async def attendance_stats(
     if end_time:
         base_filter.append(AttendanceRecord.recorded_at <= end_time)
 
-    # Total count
-    total_q = select(func.count(AttendanceRecord.id)).where(*base_filter) if base_filter else select(func.count(AttendanceRecord.id))
-    total_result = await db.execute(total_q)
-    total = total_result.scalar() or 0
+    def _where(q):
+        return q.where(*base_filter) if base_filter else q
+
+    # Total
+    total = (await db.execute(_where(select(func.count(AttendanceRecord.id))))).scalar() or 0
 
     # By type
-    type_q = select(
-        AttendanceRecord.attendance_type, func.count(AttendanceRecord.id)
-    ).group_by(AttendanceRecord.attendance_type)
-    if base_filter:
-        type_q = type_q.where(*base_filter)
-    type_result = await db.execute(type_q)
+    type_result = await db.execute(_where(
+        select(AttendanceRecord.attendance_type, func.count(AttendanceRecord.id))
+        .group_by(AttendanceRecord.attendance_type)
+    ))
     by_type = {row[0]: row[1] for row in type_result.all()}
 
-    # By device (top 20)
-    device_q = select(
-        AttendanceRecord.device_id, func.count(AttendanceRecord.id)
-    ).group_by(AttendanceRecord.device_id).order_by(
-        func.count(AttendanceRecord.id).desc()
-    ).limit(20)
-    if base_filter:
-        device_q = device_q.where(*base_filter)
-    device_result = await db.execute(device_q)
-    by_device = {str(row[0]): row[1] for row in device_result.all()}
+    # By source
+    source_result = await db.execute(_where(
+        select(AttendanceRecord.attendance_source, func.count(AttendanceRecord.id))
+        .group_by(AttendanceRecord.attendance_source)
+    ))
+    by_source = {(row[0] or "unknown"): row[1] for row in source_result.all()}
 
-    return APIResponse(
-        data={
-            "total": total,
-            "by_type": by_type,
-            "by_device": by_device,
-        }
+    # By device (top 20)
+    device_result = await db.execute(_where(
+        select(AttendanceRecord.device_id, AttendanceRecord.imei, func.count(AttendanceRecord.id))
+        .group_by(AttendanceRecord.device_id, AttendanceRecord.imei)
+        .order_by(func.count(AttendanceRecord.id).desc())
+        .limit(20)
+    ))
+    by_device = [{"device_id": row[0], "imei": row[1], "count": row[2]} for row in device_result.all()]
+
+    # Daily trend (last N days)
+    cutoff = now - timedelta(days=days)
+    trend_result = await db.execute(
+        select(
+            func.date(AttendanceRecord.recorded_at).label("day"),
+            func.count(AttendanceRecord.id),
+        )
+        .where(AttendanceRecord.recorded_at >= cutoff)
+        .group_by("day").order_by("day")
     )
+    daily_trend = {str(row[0]): row[1] for row in trend_result.all()}
+
+    # Today
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    today_count = (await db.execute(
+        select(func.count(AttendanceRecord.id)).where(AttendanceRecord.recorded_at >= today_start)
+    )).scalar() or 0
+
+    return APIResponse(data={
+        "total": total,
+        "today": today_count,
+        "by_type": by_type,
+        "by_source": by_source,
+        "by_device": by_device,
+        "daily_trend": daily_trend,
+    })
+
+
+@router.get(
+    "/report",
+    response_model=APIResponse[dict],
+    summary="考勤报表 / Attendance report",
+)
+async def attendance_report(
+    device_id: int | None = Query(default=None, description="设备ID (可选，不传则所有设备)"),
+    start_date: str = Query(..., description="开始日期 YYYY-MM-DD"),
+    end_date: str = Query(..., description="结束日期 YYYY-MM-DD"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    考勤报表：按设备+日期聚合，返回每个设备每天的签到次数、首次签到时间、末次签到时间。
+    Attendance report: per device per day aggregation.
+    """
+    from datetime import datetime as dt
+
+    try:
+        s_date = dt.strptime(start_date, "%Y-%m-%d")
+        e_date = dt.strptime(end_date, "%Y-%m-%d").replace(hour=23, minute=59, second=59)
+    except ValueError:
+        raise HTTPException(status_code=400, detail="日期格式需为 YYYY-MM-DD")
+
+    if s_date > e_date:
+        raise HTTPException(status_code=400, detail="start_date must be <= end_date")
+
+    filters = [
+        AttendanceRecord.recorded_at >= s_date,
+        AttendanceRecord.recorded_at <= e_date,
+    ]
+    if device_id is not None:
+        filters.append(AttendanceRecord.device_id == device_id)
+
+    result = await db.execute(
+        select(
+            AttendanceRecord.device_id,
+            AttendanceRecord.imei,
+            func.date(AttendanceRecord.recorded_at).label("day"),
+            func.count(AttendanceRecord.id).label("punch_count"),
+            func.min(AttendanceRecord.recorded_at).label("first_punch"),
+            func.max(AttendanceRecord.recorded_at).label("last_punch"),
+            func.group_concat(AttendanceRecord.attendance_source).label("sources"),
+        )
+        .where(*filters)
+        .group_by(AttendanceRecord.device_id, AttendanceRecord.imei, "day")
+        .order_by(AttendanceRecord.device_id, "day")
+    )
+
+    rows = result.all()
+    report = []
+    for row in rows:
+        report.append({
+            "device_id": row[0],
+            "imei": row[1],
+            "date": str(row[2]),
+            "punch_count": row[3],
+            "first_punch": str(row[4]) if row[4] else None,
+            "last_punch": str(row[5]) if row[5] else None,
+            "sources": list(set(row[6].split(","))) if row[6] else [],
+        })
+
+    # Summary: total days in range, devices with records, attendance rate
+    total_days = (e_date - s_date).days + 1
+    unique_devices = len({r["device_id"] for r in report})
+    device_days = len(report)
+
+    from app.models import Device
+    if device_id is not None:
+        total_device_count = 1
+    else:
+        total_device_count = (await db.execute(select(func.count(Device.id)))).scalar() or 1
+
+    expected_device_days = total_days * total_device_count
+    attendance_rate = round(device_days / expected_device_days * 100, 1) if expected_device_days else 0
+
+    return APIResponse(data={
+        "start_date": start_date,
+        "end_date": end_date,
+        "total_days": total_days,
+        "total_devices": unique_devices,
+        "attendance_rate": attendance_rate,
+        "records": report,
+    })
 
 
 @router.get(

app/routers/bluetooth.py

@@ -86,6 +86,75 @@ async def list_bluetooth_records(
     )
 
 
+@router.get(
+    "/stats",
+    response_model=APIResponse[dict],
+    summary="蓝牙数据统计 / Bluetooth statistics",
+)
+async def bluetooth_stats(
+    start_time: datetime | None = Query(default=None, description="开始时间"),
+    end_time: datetime | None = Query(default=None, description="结束时间"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    蓝牙数据统计：总记录数、按类型分布、按信标MAC分组TOP20、RSSI分布。
+    Bluetooth stats: total, by type, top beacons, RSSI distribution.
+    """
+    from sqlalchemy import case
+
+    filters = []
+    if start_time:
+        filters.append(BluetoothRecord.recorded_at >= start_time)
+    if end_time:
+        filters.append(BluetoothRecord.recorded_at <= end_time)
+
+    def _where(q):
+        return q.where(*filters) if filters else q
+
+    total = (await db.execute(_where(select(func.count(BluetoothRecord.id))))).scalar() or 0
+
+    # By record_type
+    type_result = await db.execute(_where(
+        select(BluetoothRecord.record_type, func.count(BluetoothRecord.id))
+        .group_by(BluetoothRecord.record_type)
+    ))
+    by_type = {row[0]: row[1] for row in type_result.all()}
+
+    # Top 20 beacons by record count
+    beacon_result = await db.execute(_where(
+        select(BluetoothRecord.beacon_mac, func.count(BluetoothRecord.id).label("cnt"))
+        .where(BluetoothRecord.beacon_mac.is_not(None))
+        .group_by(BluetoothRecord.beacon_mac)
+        .order_by(func.count(BluetoothRecord.id).desc())
+        .limit(20)
+    ))
+    top_beacons = [{"beacon_mac": row[0], "count": row[1]} for row in beacon_result.all()]
+
+    # RSSI distribution
+    rssi_result = await db.execute(_where(
+        select(
+            func.sum(case(((BluetoothRecord.rssi.is_not(None)) & (BluetoothRecord.rssi >= -50), 1), else_=0)).label("strong"),
+            func.sum(case(((BluetoothRecord.rssi < -50) & (BluetoothRecord.rssi >= -70), 1), else_=0)).label("medium"),
+            func.sum(case(((BluetoothRecord.rssi < -70) & (BluetoothRecord.rssi.is_not(None)), 1), else_=0)).label("weak"),
+            func.sum(case((BluetoothRecord.rssi.is_(None), 1), else_=0)).label("unknown"),
+        )
+    ))
+    rrow = rssi_result.one()
+    rssi_distribution = {
+        "strong_above_-50": int(rrow.strong or 0),
+        "medium_-50_-70": int(rrow.medium or 0),
+        "weak_below_-70": int(rrow.weak or 0),
+        "unknown": int(rrow.unknown or 0),
+    }
+
+    return APIResponse(data={
+        "total": total,
+        "by_type": by_type,
+        "top_beacons": top_beacons,
+        "rssi_distribution": rssi_distribution,
+    })
+
+
 @router.get(
     "/device/{device_id}",
     response_model=APIResponse[PaginatedList[BluetoothRecordResponse]],

app/routers/commands.py

@@ -147,6 +147,74 @@ async def _send_to_device(
 # ---------------------------------------------------------------------------
 
 
+@router.get(
+    "/stats",
+    response_model=APIResponse[dict],
+    summary="指令统计 / Command statistics",
+)
+async def command_stats(
+    days: int = Query(default=7, ge=1, le=90, description="趋势天数"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    指令统计：总数、按状态分布、按类型分布、成功率、按天趋势。
+    Command stats: total, by status, by type, success rate, daily trend.
+    """
+    from sqlalchemy import func, select
+    from datetime import timedelta
+    from app.models import CommandLog
+
+    total = (await db.execute(select(func.count(CommandLog.id)))).scalar() or 0
+
+    # By status
+    status_result = await db.execute(
+        select(CommandLog.status, func.count(CommandLog.id))
+        .group_by(CommandLog.status)
+    )
+    by_status = {row[0]: row[1] for row in status_result.all()}
+
+    # By type
+    type_result = await db.execute(
+        select(CommandLog.command_type, func.count(CommandLog.id))
+        .group_by(CommandLog.command_type)
+    )
+    by_type = {row[0]: row[1] for row in type_result.all()}
+
+    # Success rate
+    sent = by_status.get("sent", 0) + by_status.get("success", 0)
+    failed = by_status.get("failed", 0)
+    total_attempted = sent + failed
+    success_rate = round(sent / total_attempted * 100, 1) if total_attempted else 0
+
+    # Daily trend
+    now = now_cst()
+    cutoff = now - timedelta(days=days)
+    trend_result = await db.execute(
+        select(
+            func.date(CommandLog.created_at).label("day"),
+            func.count(CommandLog.id),
+        )
+        .where(CommandLog.created_at >= cutoff)
+        .group_by("day").order_by("day")
+    )
+    daily_trend = {str(row[0]): row[1] for row in trend_result.all()}
+
+    # Today
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    today_count = (await db.execute(
+        select(func.count(CommandLog.id)).where(CommandLog.created_at >= today_start)
+    )).scalar() or 0
+
+    return APIResponse(data={
+        "total": total,
+        "today": today_count,
+        "by_status": by_status,
+        "by_type": by_type,
+        "success_rate": success_rate,
+        "daily_trend": daily_trend,
+    })
+
+
 @router.get(
     "",
     response_model=APIResponse[PaginatedList[CommandResponse]],

app/routers/fences.py

@@ -1,12 +1,15 @@
 """Fences Router - geofence management API endpoints."""
 
 import math
+from datetime import datetime, timedelta
 
 from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy import func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import require_write
 from app.database import get_db
+from app.models import AttendanceRecord, DeviceFenceBinding, DeviceFenceState, FenceConfig
 from app.schemas import (
     APIResponse,
     DeviceFenceBindRequest,
@@ -39,6 +42,73 @@ async def list_fences(
     )
 
 
+@router.get(
+    "/stats",
+    response_model=APIResponse[dict],
+    summary="围栏统计 / Fence statistics",
+)
+async def fence_stats(db: AsyncSession = Depends(get_db)):
+    """
+    围栏统计：总数、活跃数、绑定设备总数、各围栏当前在内设备数、今日进出事件数。
+    Fence stats: totals, bindings, devices currently inside, today's events.
+    """
+    from app.config import now_cst
+    now = now_cst()
+
+    total = (await db.execute(select(func.count(FenceConfig.id)))).scalar() or 0
+    active = (await db.execute(
+        select(func.count(FenceConfig.id)).where(FenceConfig.is_active == True)  # noqa: E712
+    )).scalar() or 0
+    total_bindings = (await db.execute(select(func.count(DeviceFenceBinding.id)))).scalar() or 0
+
+    # Devices currently inside fences
+    inside_result = await db.execute(
+        select(
+            DeviceFenceState.fence_id,
+            func.count(DeviceFenceState.id),
+        )
+        .where(DeviceFenceState.is_inside == True)  # noqa: E712
+        .group_by(DeviceFenceState.fence_id)
+    )
+    devices_inside = {row[0]: row[1] for row in inside_result.all()}
+    total_inside = sum(devices_inside.values())
+
+    # Today's fence attendance events
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    today_events = (await db.execute(
+        select(func.count(AttendanceRecord.id))
+        .where(
+            AttendanceRecord.attendance_source == "fence",
+            AttendanceRecord.recorded_at >= today_start,
+        )
+    )).scalar() or 0
+
+    # Per-fence summary
+    fence_result = await db.execute(
+        select(FenceConfig.id, FenceConfig.name, FenceConfig.fence_type, FenceConfig.is_active)
+    )
+    fence_summary = []
+    for row in fence_result.all():
+        fid = row[0]
+        fence_summary.append({
+            "fence_id": fid,
+            "name": row[1],
+            "type": row[2],
+            "is_active": bool(row[3]),
+            "devices_inside": devices_inside.get(fid, 0),
+        })
+
+    return APIResponse(data={
+        "total": total,
+        "active": active,
+        "inactive": total - active,
+        "total_bindings": total_bindings,
+        "total_devices_inside": total_inside,
+        "today_events": today_events,
+        "fences": fence_summary,
+    })
+
+
 @router.get("/all-active", response_model=APIResponse[list[FenceConfigResponse]])
 async def get_all_active(db: AsyncSession = Depends(get_db)):
     fences = await fence_service.get_all_active_fences(db)
@@ -74,6 +144,73 @@ async def delete_fence(fence_id: int, db: AsyncSession = Depends(get_db)):
     return APIResponse(message="Fence deleted")
 
 
+@router.get(
+    "/{fence_id}/events",
+    response_model=APIResponse[PaginatedList[dict]],
+    summary="围栏进出事件历史 / Fence events history",
+)
+async def fence_events(
+    fence_id: int,
+    start_time: datetime | None = Query(default=None, description="开始时间"),
+    end_time: datetime | None = Query(default=None, description="结束时间"),
+    page: int = Query(default=1, ge=1),
+    page_size: int = Query(default=20, ge=1, le=100),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    获取围栏的进出事件历史（来源为 fence 的考勤记录）。
+    Get fence entry/exit events (attendance records with source=fence).
+    """
+    fence = await fence_service.get_fence(db, fence_id)
+    if fence is None:
+        raise HTTPException(status_code=404, detail="Fence not found")
+
+    from sqlalchemy.dialects.sqlite import JSON as _JSON
+
+    filters = [
+        AttendanceRecord.attendance_source == "fence",
+    ]
+    if start_time:
+        filters.append(AttendanceRecord.recorded_at >= start_time)
+    if end_time:
+        filters.append(AttendanceRecord.recorded_at <= end_time)
+
+    # Filter by fence_id in lbs_data JSON (fence_auto records store fence_id there)
+    # Since SQLite JSON support is limited, we use LIKE for the fence_id match
+    filters.append(AttendanceRecord.lbs_data.like(f'%"fence_id": {fence_id}%'))
+
+    count_q = select(func.count(AttendanceRecord.id)).where(*filters)
+    total = (await db.execute(count_q)).scalar() or 0
+
+    offset = (page - 1) * page_size
+    result = await db.execute(
+        select(AttendanceRecord)
+        .where(*filters)
+        .order_by(AttendanceRecord.recorded_at.desc())
+        .offset(offset).limit(page_size)
+    )
+    records = result.scalars().all()
+
+    items = []
+    for r in records:
+        items.append({
+            "id": r.id,
+            "device_id": r.device_id,
+            "imei": r.imei,
+            "event_type": r.attendance_type,
+            "latitude": r.latitude,
+            "longitude": r.longitude,
+            "address": r.address,
+            "recorded_at": str(r.recorded_at),
+        })
+
+    return APIResponse(data=PaginatedList(
+        items=items,
+        total=total, page=page, page_size=page_size,
+        total_pages=math.ceil(total / page_size) if total else 0,
+    ))
+
+
 # ---------------------------------------------------------------------------
 # Device-Fence Binding endpoints
 # ---------------------------------------------------------------------------

app/routers/heartbeats.py

@@ -73,6 +73,99 @@ async def list_heartbeats(
     )
 
 
+@router.get(
+    "/stats",
+    response_model=APIResponse[dict],
+    summary="心跳统计 / Heartbeat statistics",
+)
+async def heartbeat_stats(
+    hours: int = Query(default=24, ge=1, le=168, description="统计时间范围(小时)"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    心跳数据统计：总记录数、活跃设备数、平均电量、按设备心跳间隔分析。
+    Heartbeat stats: total, active devices, avg battery, interval analysis.
+    """
+    from app.config import now_cst
+    from app.models import Device
+    from datetime import timedelta
+
+    now = now_cst()
+    cutoff = now - timedelta(hours=hours)
+
+    # Total in range
+    total = (await db.execute(
+        select(func.count(HeartbeatRecord.id)).where(HeartbeatRecord.created_at >= cutoff)
+    )).scalar() or 0
+
+    # Unique devices with heartbeats in range
+    active_devices = (await db.execute(
+        select(func.count(func.distinct(HeartbeatRecord.device_id)))
+        .where(HeartbeatRecord.created_at >= cutoff)
+    )).scalar() or 0
+
+    # Total registered devices
+    total_devices = (await db.execute(select(func.count(Device.id)))).scalar() or 0
+
+    # Avg battery and signal in range
+    avg_result = await db.execute(
+        select(
+            func.avg(HeartbeatRecord.battery_level),
+            func.avg(HeartbeatRecord.gsm_signal),
+        ).where(HeartbeatRecord.created_at >= cutoff)
+    )
+    avg_row = avg_result.one()
+    avg_battery = round(float(avg_row[0]), 1) if avg_row[0] else None
+    avg_signal = round(float(avg_row[1]), 1) if avg_row[1] else None
+
+    # Per-device heartbeat count in range (for interval estimation)
+    # Devices with < expected heartbeats may be anomalous
+    per_device_result = await db.execute(
+        select(
+            HeartbeatRecord.device_id,
+            HeartbeatRecord.imei,
+            func.count(HeartbeatRecord.id).label("hb_count"),
+            func.min(HeartbeatRecord.created_at).label("first_hb"),
+            func.max(HeartbeatRecord.created_at).label("last_hb"),
+        )
+        .where(HeartbeatRecord.created_at >= cutoff)
+        .group_by(HeartbeatRecord.device_id, HeartbeatRecord.imei)
+        .order_by(func.count(HeartbeatRecord.id).desc())
+    )
+    device_intervals = []
+    anomalous_devices = []
+    for row in per_device_result.all():
+        hb_count = row[2]
+        first_hb = row[3]
+        last_hb = row[4]
+        if hb_count > 1 and first_hb and last_hb:
+            span_min = (last_hb - first_hb).total_seconds() / 60
+            avg_interval_min = round(span_min / (hb_count - 1), 1) if hb_count > 1 else 0
+        else:
+            avg_interval_min = 0
+        entry = {
+            "device_id": row[0], "imei": row[1],
+            "heartbeat_count": hb_count,
+            "avg_interval_minutes": avg_interval_min,
+        }
+        device_intervals.append(entry)
+        # Flag devices with very few heartbeats (expected ~12/h * hours)
+        if hb_count < max(1, hours * 2):
+            anomalous_devices.append(entry)
+
+    return APIResponse(data={
+        "period_hours": hours,
+        "total_heartbeats": total,
+        "active_devices": active_devices,
+        "total_devices": total_devices,
+        "inactive_devices": total_devices - active_devices,
+        "avg_battery_level": avg_battery,
+        "avg_gsm_signal": avg_signal,
+        "device_intervals": device_intervals[:20],
+        "anomalous_devices": anomalous_devices[:10],
+    })
+
+
 @router.post(
     "/batch-delete",
     response_model=APIResponse[dict],

app/routers/locations.py

@@ -4,10 +4,10 @@ API endpoints for querying location records and device tracks.
 """
 
 import math
-from datetime import datetime
+from datetime import datetime, timedelta
 
 from fastapi import APIRouter, Body, Depends, HTTPException, Query
-from sqlalchemy import func, select, delete
+from sqlalchemy import func, select, delete, case, extract
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import require_write
@@ -63,6 +63,154 @@ async def list_locations(
     )
 
 
+@router.get(
+    "/stats",
+    response_model=APIResponse[dict],
+    summary="位置数据统计 / Location statistics",
+)
+async def location_stats(
+    device_id: int | None = Query(default=None, description="设备ID (可选)"),
+    start_time: datetime | None = Query(default=None, description="开始时间"),
+    end_time: datetime | None = Query(default=None, description="结束时间"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    位置数据统计：总记录数、按定位类型分布、有坐标率、按小时分布(24h)。
+    Location statistics: total, by type, coordinate rate, hourly distribution.
+    """
+    filters = []
+    if device_id is not None:
+        filters.append(LocationRecord.device_id == device_id)
+    if start_time:
+        filters.append(LocationRecord.recorded_at >= start_time)
+    if end_time:
+        filters.append(LocationRecord.recorded_at <= end_time)
+
+    where = filters if filters else []
+
+    # Total
+    q = select(func.count(LocationRecord.id))
+    if where:
+        q = q.where(*where)
+    total = (await db.execute(q)).scalar() or 0
+
+    # With coordinates
+    q2 = select(func.count(LocationRecord.id)).where(
+        LocationRecord.latitude.is_not(None), LocationRecord.longitude.is_not(None)
+    )
+    if where:
+        q2 = q2.where(*where)
+    with_coords = (await db.execute(q2)).scalar() or 0
+
+    # By type
+    q3 = select(LocationRecord.location_type, func.count(LocationRecord.id)).group_by(LocationRecord.location_type)
+    if where:
+        q3 = q3.where(*where)
+    type_result = await db.execute(q3)
+    by_type = {row[0]: row[1] for row in type_result.all()}
+
+    # Hourly distribution (hour 0-23)
+    q4 = select(
+        extract("hour", LocationRecord.recorded_at).label("hour"),
+        func.count(LocationRecord.id),
+    ).group_by("hour").order_by("hour")
+    if where:
+        q4 = q4.where(*where)
+    hour_result = await db.execute(q4)
+    hourly = {int(row[0]): row[1] for row in hour_result.all()}
+
+    return APIResponse(data={
+        "total": total,
+        "with_coordinates": with_coords,
+        "without_coordinates": total - with_coords,
+        "coordinate_rate": round(with_coords / total * 100, 1) if total else 0,
+        "by_type": by_type,
+        "hourly_distribution": hourly,
+    })
+
+
+@router.get(
+    "/track-summary/{device_id}",
+    response_model=APIResponse[dict],
+    summary="轨迹摘要 / Track summary",
+)
+async def track_summary(
+    device_id: int,
+    start_time: datetime = Query(..., description="开始时间"),
+    end_time: datetime = Query(..., description="结束时间"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    轨迹统计摘要：总距离(km)、运动时长、最高速度、平均速度、轨迹点数。
+    Track summary: total distance, duration, max/avg speed, point count.
+    """
+    import math as _math
+
+    device = await device_service.get_device(db, device_id)
+    if device is None:
+        raise HTTPException(status_code=404, detail=f"Device {device_id} not found")
+    if start_time >= end_time:
+        raise HTTPException(status_code=400, detail="start_time must be before end_time")
+
+    records = await location_service.get_device_track(db, device_id, start_time, end_time, max_points=50000)
+
+    if not records:
+        return APIResponse(data={
+            "device_id": device_id,
+            "point_count": 0,
+            "total_distance_km": 0,
+            "duration_minutes": 0,
+            "max_speed_kmh": 0,
+            "avg_speed_kmh": 0,
+            "by_type": {},
+        })
+
+    # Haversine distance calculation
+    def _haversine(lat1: float, lon1: float, lat2: float, lon2: float) -> float:
+        R = 6371.0  # km
+        dlat = _math.radians(lat2 - lat1)
+        dlon = _math.radians(lon2 - lon1)
+        a = _math.sin(dlat / 2) ** 2 + _math.cos(_math.radians(lat1)) * _math.cos(_math.radians(lat2)) * _math.sin(dlon / 2) ** 2
+        return R * 2 * _math.atan2(_math.sqrt(a), _math.sqrt(1 - a))
+
+    total_distance = 0.0
+    max_speed = 0.0
+    speeds = []
+    type_counts: dict[str, int] = {}
+    prev = None
+
+    for r in records:
+        t = r.location_type or "unknown"
+        type_counts[t] = type_counts.get(t, 0) + 1
+
+        if r.speed is not None and r.speed > max_speed:
+            max_speed = r.speed
+
+        if prev is not None and r.latitude is not None and r.longitude is not None and prev.latitude is not None and prev.longitude is not None:
+            d = _haversine(prev.latitude, prev.longitude, r.latitude, r.longitude)
+            total_distance += d
+
+        if r.latitude is not None and r.longitude is not None:
+            prev = r
+
+    first_time = records[0].recorded_at
+    last_time = records[-1].recorded_at
+    duration_min = (last_time - first_time).total_seconds() / 60 if last_time > first_time else 0
+    avg_speed = (total_distance / (duration_min / 60)) if duration_min > 0 else 0
+
+    return APIResponse(data={
+        "device_id": device_id,
+        "point_count": len(records),
+        "total_distance_km": round(total_distance, 2),
+        "duration_minutes": round(duration_min, 1),
+        "max_speed_kmh": round(max_speed, 1),
+        "avg_speed_kmh": round(avg_speed, 1),
+        "start_time": str(first_time),
+        "end_time": str(last_time),
+        "by_type": type_counts,
+    })
+
+
 @router.get(
     "/latest/{device_id}",
     response_model=APIResponse[LocationRecordResponse | None],

app/services/device_service.py

@@ -289,12 +289,10 @@ async def batch_delete_devices(
 
 async def get_device_stats(db: AsyncSession) -> dict:
     """
-    获取设备统计信息 / Get device statistics.
+    获取设备统计信息（增强版）/ Get enhanced device statistics.
 
-    Returns
-    -------
-    dict
-        {"total": int, "online": int, "offline": int}
+    Returns dict with total/online/offline counts, online_rate,
+    by_type breakdown, battery/signal distribution.
     """
     total_result = await db.execute(select(func.count(Device.id)))
     total = total_result.scalar() or 0
@@ -303,11 +301,57 @@ async def get_device_stats(db: AsyncSession) -> dict:
         select(func.count(Device.id)).where(Device.status == "online")
     )
     online = online_result.scalar() or 0
-
     offline = total - online
 
+    # By device_type
+    type_result = await db.execute(
+        select(Device.device_type, func.count(Device.id))
+        .group_by(Device.device_type)
+        .order_by(func.count(Device.id).desc())
+    )
+    by_type = {row[0] or "unknown": row[1] for row in type_result.all()}
+
+    # Battery distribution: 0-20, 20-50, 50-100, unknown
+    from sqlalchemy import case
+    battery_result = await db.execute(
+        select(
+            func.sum(case((Device.battery_level < 20, 1), else_=0)).label("low"),
+            func.sum(case(((Device.battery_level >= 20) & (Device.battery_level < 50), 1), else_=0)).label("medium"),
+            func.sum(case((Device.battery_level >= 50, 1), else_=0)).label("high"),
+            func.sum(case((Device.battery_level.is_(None), 1), else_=0)).label("unknown"),
+        )
+    )
+    brow = battery_result.one()
+    battery_distribution = {
+        "low_0_20": int(brow.low or 0),
+        "medium_20_50": int(brow.medium or 0),
+        "high_50_100": int(brow.high or 0),
+        "unknown": int(brow.unknown or 0),
+    }
+
+    # Signal distribution: 0=none, 1-10=weak, 11-20=medium, 21-31=strong
+    signal_result = await db.execute(
+        select(
+            func.sum(case(((Device.gsm_signal.is_not(None)) & (Device.gsm_signal <= 10), 1), else_=0)).label("weak"),
+            func.sum(case(((Device.gsm_signal > 10) & (Device.gsm_signal <= 20), 1), else_=0)).label("medium"),
+            func.sum(case((Device.gsm_signal > 20, 1), else_=0)).label("strong"),
+            func.sum(case((Device.gsm_signal.is_(None), 1), else_=0)).label("unknown"),
+        )
+    )
+    srow = signal_result.one()
+    signal_distribution = {
+        "weak_0_10": int(srow.weak or 0),
+        "medium_11_20": int(srow.medium or 0),
+        "strong_21_31": int(srow.strong or 0),
+        "unknown": int(srow.unknown or 0),
+    }
+
     return {
         "total": total,
         "online": online,
         "offline": offline,
+        "online_rate": round(online / total * 100, 1) if total else 0,
+        "by_type": by_type,
+        "battery_distribution": battery_distribution,
+        "signal_distribution": signal_distribution,
     }

app/static/admin.html

@@ -270,6 +270,24 @@
                         <span class="text-xs text-gray-500" id="dashConnectedHint"></span>
                     </div>
                 </div>
+                <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-6">
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-bell text-red-400 mr-1"></i>今日告警</p>
+                        <p class="text-2xl font-bold text-red-400" id="dashTodayAlarms">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-user-check text-cyan-400 mr-1"></i>今日考勤</p>
+                        <p class="text-2xl font-bold text-cyan-400" id="dashTodayAttendance">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-map-pin text-blue-400 mr-1"></i>今日定位</p>
+                        <p class="text-2xl font-bold text-blue-400" id="dashTodayLocations">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-percentage text-green-400 mr-1"></i>在线率</p>
+                        <p class="text-2xl font-bold text-green-400" id="dashOnlineRate">-</p>
+                    </div>
+                </div>
 
                 <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
                     <div class="stat-card">
@@ -522,6 +540,7 @@
                     <div class="stat-card">
                         <p class="text-gray-400 text-sm">告警总数</p>
                         <p class="text-2xl font-bold mt-1" id="alarmStatTotal">-</p>
+                        <p class="text-xs text-gray-500 mt-1" id="alarmStatToday"></p>
                     </div>
                     <div class="stat-card">
                         <p class="text-gray-400 text-sm">未确认</p>
@@ -563,6 +582,7 @@
                     <button class="btn btn-primary" onclick="loadAlarms()"><i class="fas fa-search"></i> 查询</button>
                     <button class="btn btn-secondary" onclick="loadAlarms()"><i class="fas fa-sync-alt"></i> 刷新</button>
                     <button class="btn" style="background:#b91c1c;color:#fff" id="btnBatchDeleteAlarm" onclick="batchDeleteSelectedAlarms()" disabled><i class="fas fa-trash-alt"></i> 删除选中 (<span id="alarmSelCount">0</span>)</button>
+                    <button class="btn btn-success" id="btnBatchAckAlarm" onclick="batchAcknowledgeAlarms()" disabled><i class="fas fa-check-double"></i> 批量确认 (<span id="alarmAckCount">0</span>)</button>
                 </div>
                 <div class="bg-gray-800 rounded-xl border border-gray-700 overflow-hidden relative">
                     <div id="alarmsLoading" class="loading-overlay" style="display:none"><div class="spinner"></div></div>
@@ -570,7 +590,7 @@
                         <table>
                             <thead>
                                 <tr>
-                                    <th style="width:32px"><input type="checkbox" id="alarmSelectAll" onchange="toggleAllCheckboxes('alarm-sel-cb','alarmSelCount','btnBatchDeleteAlarm',this.checked)" title="全选当前页"></th>
+                                    <th style="width:32px"><input type="checkbox" id="alarmSelectAll" onchange="toggleAllCheckboxes('alarm-sel-cb','alarmSelCount','btnBatchDeleteAlarm',this.checked);updateSelCount('alarm-sel-cb','alarmAckCount','btnBatchAckAlarm')" title="全选当前页"></th>
                                     <th>IMEI</th>
                                     <th>类型</th>
                                     <th>来源</th>
@@ -613,6 +633,7 @@
                     <div class="stat-card">
                         <p class="text-gray-400 text-sm">总记录数</p>
                         <p class="text-2xl font-bold mt-1" id="attStatTotal">-</p>
+                        <p class="text-xs text-gray-500 mt-1" id="attStatToday"></p>
                     </div>
                     <div class="stat-card">
                         <p class="text-gray-400 text-sm">签到次数</p>
@@ -701,6 +722,24 @@
                         </div>
                     </div>
                 </div>
+                <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-4">
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fab fa-bluetooth-b text-blue-400 mr-1"></i>总记录</p>
+                        <p class="text-2xl font-bold" id="btStatTotal">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-fingerprint text-purple-400 mr-1"></i>打卡</p>
+                        <p class="text-2xl font-bold text-purple-400" id="btStatPunch">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-map-marker-alt text-cyan-400 mr-1"></i>定位</p>
+                        <p class="text-2xl font-bold text-cyan-400" id="btStatLocation">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-broadcast-tower text-green-400 mr-1"></i>信标数</p>
+                        <p class="text-2xl font-bold text-green-400" id="btStatBeacons">-</p>
+                    </div>
+                </div>
                 <div class="flex flex-wrap items-center gap-3 mb-4">
                     <select id="btDeviceFilter" style="width:180px">
                         <option value="">全部设备</option>
@@ -849,6 +888,24 @@
                         </div>
                         <!-- Tab Content: Fence List + Map -->
                         <div id="fenceTabContentList" style="display:flex;flex-direction:column;flex:1;overflow:hidden">
+                            <div class="grid grid-cols-4 gap-3 mb-3" id="fenceStatsRow">
+                                <div style="background:#1f2937;border:1px solid #374151;border-radius:8px;padding:10px 14px;text-align:center">
+                                    <p class="text-gray-500" style="font-size:11px">总围栏</p>
+                                    <p class="text-lg font-bold" id="fenceStatTotal">-</p>
+                                </div>
+                                <div style="background:#1f2937;border:1px solid #374151;border-radius:8px;padding:10px 14px;text-align:center">
+                                    <p class="text-gray-500" style="font-size:11px">已启用</p>
+                                    <p class="text-lg font-bold text-green-400" id="fenceStatActive">-</p>
+                                </div>
+                                <div style="background:#1f2937;border:1px solid #374151;border-radius:8px;padding:10px 14px;text-align:center">
+                                    <p class="text-gray-500" style="font-size:11px">绑定设备</p>
+                                    <p class="text-lg font-bold text-cyan-400" id="fenceStatBindings">-</p>
+                                </div>
+                                <div style="background:#1f2937;border:1px solid #374151;border-radius:8px;padding:10px 14px;text-align:center">
+                                    <p class="text-gray-500" style="font-size:11px">今日事件</p>
+                                    <p class="text-lg font-bold text-yellow-400" id="fenceStatEvents">-</p>
+                                </div>
+                            </div>
                             <div class="flex flex-wrap items-center gap-3 mb-3">
                                 <button class="btn btn-primary" onclick="loadFences()"><i class="fas fa-sync-alt"></i> 刷新</button>
                                 <div style="flex:1;display:flex;gap:6px;max-width:400px">
@@ -1030,6 +1087,25 @@
                     </div>
                 </div>
 
+                <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-4" id="cmdStatsRow">
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-terminal text-blue-400 mr-1"></i>指令总数</p>
+                        <p class="text-2xl font-bold" id="cmdStatTotal">-</p>
+                        <p class="text-xs text-gray-500 mt-1" id="cmdStatToday"></p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-check-circle text-green-400 mr-1"></i>成功率</p>
+                        <p class="text-2xl font-bold text-green-400" id="cmdStatRate">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-paper-plane text-cyan-400 mr-1"></i>已发送</p>
+                        <p class="text-2xl font-bold text-cyan-400" id="cmdStatSent">-</p>
+                    </div>
+                    <div class="stat-card" style="padding:16px;">
+                        <p class="text-gray-400 text-xs mb-1"><i class="fas fa-times-circle text-red-400 mr-1"></i>失败</p>
+                        <p class="text-2xl font-bold text-red-400" id="cmdStatFailed">-</p>
+                    </div>
+                </div>
                 <div class="flex flex-wrap items-center gap-3 mb-4">
                     <h3 class="text-lg font-semibold"><i class="fas fa-history mr-2 text-gray-400"></i>指令历史</h3>
                     <div class="flex-1"></div>
@@ -1314,11 +1390,11 @@
             case 'locations': initLocationMap(); loadDeviceSelectors(); break;
             case 'alarms': loadAlarmStats(); loadAlarms(); loadDeviceSelectors(); break;
             case 'attendance': loadAttendanceStats(); loadAttendance(); loadDeviceSelectors(); break;
-            case 'bluetooth': loadBluetooth(); loadDeviceSelectors(); break;
+            case 'bluetooth': loadBluetoothStats(); loadBluetooth(); loadDeviceSelectors(); break;
             case 'beacons': loadBeacons(); break;
-            case 'fences': initFenceMap(); loadFences(); break;
+            case 'fences': initFenceMap(); loadFenceStats(); loadFences(); break;
             case 'datalog': loadDataLogStats(); loadDataLog(); loadDeviceSelectors(); break;
-            case 'commands': loadCommands(); loadDeviceSelectors(); break;
+            case 'commands': loadCommandStats(); loadCommands(); loadDeviceSelectors(); break;
         }
     }
 
@@ -1589,10 +1665,11 @@
     // ==================== DASHBOARD ====================
     async function loadDashboard() {
         try {
-            const [deviceStats, alarmStats, health] = await Promise.allSettled([
+            const [deviceStats, alarmStats, health, overview] = await Promise.allSettled([
                 apiCall(`${API_BASE}/devices/stats`),
                 apiCall(`${API_BASE}/alarms/stats`),
                 apiCall('/health'),
+                apiCall(`${API_BASE}/system/overview`),
             ]);
 
             if (deviceStats.status === 'fulfilled') {
@@ -1622,6 +1699,15 @@
                 document.getElementById('dashSystemStatus').textContent = '无法连接';
             }
 
+            if (overview.status === 'fulfilled') {
+                const ov = overview.value;
+                animateCounter('dashTodayAlarms', ov.today?.alarms || 0);
+                animateCounter('dashTodayAttendance', ov.today?.attendance || 0);
+                animateCounter('dashTodayLocations', ov.today?.locations || 0);
+                const rate = ov.devices?.online_rate;
+                document.getElementById('dashOnlineRate').textContent = rate != null ? rate + '%' : '-';
+            }
+
             // Update last-refreshed timestamp
             const upd = document.getElementById('dashLastUpdated');
             if (upd) upd.textContent = '更新于 ' + new Date().toLocaleTimeString('zh-CN', {hour:'2-digit',minute:'2-digit',second:'2-digit'});
@@ -3063,6 +3149,17 @@
             const legend = document.getElementById('mapLegend');
             if (legend) legend.style.display = 'block';
             showToast(`已加载 ${total} 个轨迹点${_hideLowPrecision ? ' (已隐藏低精度)' : ''}`);
+
+            // Load track summary
+            try {
+                const summary = await apiCall(`${API_BASE}/locations/track-summary/${deviceId}?start_time=${startTime}T00:00:00&end_time=${endTime}T23:59:59`);
+                if (summary && summary.point_count > 0) {
+                    const dist = summary.total_distance_km != null ? summary.total_distance_km.toFixed(2) + 'km' : '-';
+                    const dur = summary.duration_minutes != null ? Math.round(summary.duration_minutes) + '分钟' : '-';
+                    const spd = summary.avg_speed_kmh != null ? summary.avg_speed_kmh.toFixed(1) + 'km/h' : '-';
+                    showToast(`轨迹摘要: ${summary.point_count}点, ${dist}, ${dur}, 均速${spd}`, 'info');
+                }
+            } catch(e) { console.warn('Track summary failed:', e); }
         } catch (err) {
             showToast('加载轨迹失败: ' + err.message, 'error');
         }
@@ -3215,6 +3312,8 @@
             document.getElementById('alarmStatTotal').textContent = stats.total || 0;
             document.getElementById('alarmStatUnack').textContent = stats.unacknowledged || 0;
             document.getElementById('alarmStatAck').textContent = stats.acknowledged || 0;
+            const alarmTodayEl = document.getElementById('alarmStatToday');
+            if (alarmTodayEl) alarmTodayEl.textContent = `今日 ${stats.today || 0}`;
             renderAlarmDoughnut('alarmTypeChart', stats.by_type, true);
         } catch (err) {
             console.error('Failed to load alarm stats:', err);
@@ -3249,7 +3348,7 @@
             } else {
                 tbody.innerHTML = items.map(a => `
                     <tr>
-                        <td onclick="event.stopPropagation()"><input type="checkbox" class="alarm-sel-cb" value="${a.id}" onchange="updateSelCount('alarm-sel-cb','alarmSelCount','btnBatchDeleteAlarm')"></td>
+                        <td onclick="event.stopPropagation()"><input type="checkbox" class="alarm-sel-cb" value="${a.id}" onchange="updateSelCount('alarm-sel-cb','alarmSelCount','btnBatchDeleteAlarm');updateSelCount('alarm-sel-cb','alarmAckCount','btnBatchAckAlarm')"></td>
                         <td class="font-mono text-xs">${escapeHtml(_imei(a.device_id))}</td>
                         <td><span class="${alarmTypeClass(a.alarm_type)} font-semibold">${alarmTypeName(a.alarm_type)}</span></td>
                         <td>${({'single_fence':'<span style="color:#a855f7"><i class="fas fa-draw-polygon mr-1"></i>单围栏</span>','multi_fence':'<span style="color:#c084fc"><i class="fas fa-layer-group mr-1"></i>多围栏</span>','lbs':'<span style="color:#f97316"><i class="fas fa-broadcast-tower mr-1"></i>基站</span>','wifi':'<span style="color:#f59e0b"><i class="fas fa-wifi mr-1"></i>WiFi</span>'})[a.alarm_source] || escapeHtml(a.alarm_source || '-')}</td>
@@ -3301,6 +3400,24 @@
         }
     }
 
+    async function batchAcknowledgeAlarms() {
+        const cbs = document.querySelectorAll('.alarm-sel-cb:checked');
+        if (!cbs.length) return;
+        const ids = [...cbs].map(c => parseInt(c.value));
+        if (!confirm(`确认批量确认 ${ids.length} 条告警？`)) return;
+        try {
+            await apiCall(`${API_BASE}/alarms/batch-acknowledge`, {
+                method: 'POST',
+                body: JSON.stringify({ alarm_ids: ids, acknowledged: true }),
+            });
+            showToast(`已批量确认 ${ids.length} 条告警`, 'success');
+            loadAlarms();
+            loadAlarmStats();
+        } catch (err) {
+            showToast('批量确认失败: ' + err.message, 'error');
+        }
+    }
+
     // ==================== ATTENDANCE ====================
     async function loadAttendanceStats() {
         try {
@@ -3318,6 +3435,8 @@
             document.getElementById('attStatCheckOut').textContent = stats.by_type?.clock_out || stats.check_out || 0;
             const other = stats.total - (stats.by_type?.clock_in || 0) - (stats.by_type?.clock_out || 0);
             document.getElementById('attStatOther').textContent = other > 0 ? other : 0;
+            const attTodayEl = document.getElementById('attStatToday');
+            if (attTodayEl) attTodayEl.textContent = `今日 ${stats.today || 0}`;
         } catch (err) {
             console.error('Failed to load attendance stats:', err);
         }
@@ -3393,6 +3512,18 @@
     }
 
     // ==================== BLUETOOTH ====================
+    async function loadBluetoothStats() {
+        try {
+            const stats = await apiCall(`${API_BASE}/bluetooth/stats`);
+            document.getElementById('btStatTotal').textContent = stats.total || 0;
+            document.getElementById('btStatPunch').textContent = stats.by_type?.punch || 0;
+            document.getElementById('btStatLocation').textContent = stats.by_type?.location || 0;
+            document.getElementById('btStatBeacons').textContent = stats.top_beacons?.length || 0;
+        } catch (err) {
+            console.error('Failed to load bluetooth stats:', err);
+        }
+    }
+
     async function loadBluetooth(page) {
         if (page) pageState.bluetooth.page = page;
         const p = pageState.bluetooth.page;
@@ -3772,6 +3903,18 @@
         }
     }
 
+    async function loadFenceStats() {
+        try {
+            const stats = await apiCall(`${API_BASE}/fences/stats`);
+            document.getElementById('fenceStatTotal').textContent = stats.total || 0;
+            document.getElementById('fenceStatActive').textContent = stats.active || 0;
+            document.getElementById('fenceStatBindings').textContent = stats.total_bindings || 0;
+            document.getElementById('fenceStatEvents').textContent = stats.today_events || 0;
+        } catch (err) {
+            console.error('Failed to load fence stats:', err);
+        }
+    }
+
     async function loadFences() {
         showLoading('fencesLoading');
         try {
@@ -4681,6 +4824,19 @@
         }
     }
 
+    async function loadCommandStats() {
+        try {
+            const stats = await apiCall(`${API_BASE}/commands/stats`);
+            document.getElementById('cmdStatTotal').textContent = stats.total || 0;
+            document.getElementById('cmdStatToday').textContent = `今日 ${stats.today || 0}`;
+            document.getElementById('cmdStatRate').textContent = (stats.success_rate || 0) + '%';
+            document.getElementById('cmdStatSent').textContent = (stats.by_status?.sent || 0) + (stats.by_status?.success || 0);
+            document.getElementById('cmdStatFailed').textContent = stats.by_status?.failed || 0;
+        } catch (err) {
+            console.error('Failed to load command stats:', err);
+        }
+    }
+
     async function loadCommands(page) {
         if (page) pageState.commands.page = page;
         const p = pageState.commands.page;