16337
9143022ee8
- VLM误报和手动忽略的handle_status改为IGNORED - 自动结单(resolve_alarm)检查IGNORED状态，不覆盖误报 - 前端忽略操作兼容转换时自动设置handleStatus=IGNORED Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
226 lines
8.0 KiB
Python
226 lines
8.0 KiB
Python
"""
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通知调度服务
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告警创建后的异步处理流水线：
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1. VLM 复核截图 → 写入 alarm_llm_analysis
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2. 查表获取通知人员 (camera → area → person)
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3. 推送企微互动卡片
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全程异步执行，不阻塞告警接收主流程。
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VLM 或企微不可用时自动降级，不影响系统运行。
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"""
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from datetime import datetime
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from typing import Dict, List
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from app.models import (
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get_session,
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AlarmEvent, AlarmLlmAnalysis,
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CameraAreaBinding, AreaPersonBinding, NotifyArea,
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)
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from app.config import settings
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from app.services.vlm_service import get_vlm_service
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from app.services.wechat_service import get_wechat_service
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from app.utils.logger import logger
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from app.utils.timezone import beijing_now
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async def process_alarm_notification(alarm_data: Dict):
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"""
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告警通知处理流水线（异步，fire-and-forget）
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Args:
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alarm_data: 告警字典，包含 alarm_id, alarm_type, device_id,
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snapshot_url, alarm_level, event_time 等字段
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"""
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alarm_id = alarm_data.get("alarm_id", "")
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alarm_type = alarm_data.get("alarm_type", "")
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device_id = alarm_data.get("device_id", "")
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snapshot_url = alarm_data.get("snapshot_url", "")
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alarm_level = alarm_data.get("alarm_level", 2)
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event_time = alarm_data.get("event_time", "")
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logger.info(f"开始处理告警通知: {alarm_id}")
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try:
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# ========== 1. VLM 复核 ==========
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vlm_service = get_vlm_service()
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camera_name = alarm_data.get("camera_name", device_id)
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roi_name = alarm_data.get("scene_id", "")
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# snapshot_url 可能是 COS object key，需转为可访问的预签名URL
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vlm_snapshot_url = snapshot_url
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if snapshot_url and not snapshot_url.startswith("http"):
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from app.services.oss_storage import get_oss_storage
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vlm_snapshot_url = get_oss_storage().get_presigned_url(snapshot_url)
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vlm_result = await vlm_service.verify_alarm(
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snapshot_url=vlm_snapshot_url,
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alarm_type=alarm_type,
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camera_name=camera_name,
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roi_name=roi_name,
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)
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# 写入 alarm_llm_analysis 表（复用已有表）
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_save_vlm_result(alarm_id, vlm_result)
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# VLM 明确判定为误报（非降级跳过）→ 更新告警状态，不通知
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if not vlm_result.get("confirmed", True) and not vlm_result.get("skipped"):
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_mark_false_alarm(alarm_id)
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logger.info(f"VLM 判定误报，跳过通知: {alarm_id}")
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return
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# VLM 跳过（降级）且 confirmed=False → 不改告警状态，仅跳过通知
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if not vlm_result.get("confirmed", True) and vlm_result.get("skipped"):
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logger.info(f"VLM 降级跳过，不推送但保留告警状态: {alarm_id}")
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return
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# ========== 2. 查表获取通知人员 ==========
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description = vlm_result.get("description", "")
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area_name, persons = _get_notify_persons(device_id, alarm_level)
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# 演示模式：数据库无人员时，使用配置的测试 userid
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if not persons and settings.wechat.test_uids:
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test_uids = [uid.strip() for uid in settings.wechat.test_uids.split(",") if uid.strip()]
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if test_uids:
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persons = [{"person_name": "测试用户", "wechat_uid": uid, "role": "TEST"} for uid in test_uids]
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area_name = "演示区域"
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logger.info(f"演示模式: 使用测试用户 {test_uids}")
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if not persons:
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logger.warning(f"未找到通知人员: camera={device_id}, 跳过企微推送")
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return
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# ========== 3. 推送企微通知 ==========
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wechat_service = get_wechat_service()
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service_base_url = settings.wechat.service_base_url or f"http://{settings.app.host}:{settings.app.port}"
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event_time_str = (
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event_time.strftime("%Y-%m-%d %H:%M:%S")
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if isinstance(event_time, datetime) else str(event_time or "")
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)
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if wechat_service.enabled:
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user_ids = [p["wechat_uid"] for p in persons]
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sent = await wechat_service.send_alarm_card(
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user_ids=user_ids,
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alarm_id=alarm_id,
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alarm_type=alarm_type,
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area_name=area_name,
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camera_name=camera_name,
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description=description,
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snapshot_url=snapshot_url,
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event_time=event_time_str,
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alarm_level=alarm_level,
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service_base_url=service_base_url,
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)
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if sent:
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logger.info(f"告警通知完成: {alarm_id}")
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else:
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logger.warning(f"告警通知发送失败: {alarm_id}")
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else:
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logger.info(f"企微未启用，跳过通知: {alarm_id}")
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except Exception as e:
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logger.error(f"告警通知处理失败: {alarm_id}, error={e}", exc_info=True)
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def _save_vlm_result(alarm_id: str, vlm_result: Dict):
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"""将 VLM 复核结果写入 alarm_llm_analysis 表"""
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db = get_session()
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try:
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analysis = AlarmLlmAnalysis(
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alarm_id=alarm_id,
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llm_model="qwen3-vl-flash",
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analysis_type="REVIEW",
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summary=vlm_result.get("description", ""),
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is_false_alarm=not vlm_result.get("confirmed", True),
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confidence_score=None if vlm_result.get("skipped") else 0.9,
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suggestion="VLM跳过" if vlm_result.get("skipped") else None,
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)
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db.add(analysis)
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db.commit()
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except Exception as e:
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db.rollback()
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logger.error(f"保存 VLM 结果失败: {e}")
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finally:
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db.close()
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def _mark_false_alarm(alarm_id: str):
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"""将告警标记为误报"""
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db = get_session()
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try:
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alarm = db.query(AlarmEvent).filter(AlarmEvent.alarm_id == alarm_id).first()
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if alarm:
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now = beijing_now()
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alarm.alarm_status = "FALSE"
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alarm.handle_status = "IGNORED"
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alarm.handle_remark = "VLM复核判定误报"
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alarm.handled_at = now
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# 计算告警时长（VLM复核时间 - 事件时间）
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if alarm.duration_ms is None and alarm.event_time:
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try:
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delta = now - alarm.event_time
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alarm.duration_ms = int(delta.total_seconds() * 1000)
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except Exception:
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pass
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if alarm.last_frame_time is None:
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alarm.last_frame_time = now
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db.commit()
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logger.info(f"告警已标记误报: {alarm_id}")
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except Exception as e:
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db.rollback()
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logger.error(f"标记误报失败: {e}")
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finally:
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db.close()
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def _get_notify_persons(camera_id: str, alarm_level: int) -> tuple:
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"""
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根据摄像头ID查找通知人员
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Returns:
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(area_name, [{"person_name": ..., "wechat_uid": ..., "role": ...}])
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"""
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db = get_session()
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try:
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# camera → area
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binding = db.query(CameraAreaBinding).filter(
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CameraAreaBinding.camera_id == camera_id
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).first()
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if not binding:
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return ("未知区域", [])
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# area info
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area = db.query(NotifyArea).filter(
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NotifyArea.area_id == binding.area_id,
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NotifyArea.enabled == 1,
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).first()
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area_name = area.area_name if area else "未知区域"
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# area → persons
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persons = db.query(AreaPersonBinding).filter(
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AreaPersonBinding.area_id == binding.area_id,
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AreaPersonBinding.enabled == 1,
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AreaPersonBinding.notify_level <= alarm_level,
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).all()
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result = [
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{
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"person_name": p.person_name,
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"wechat_uid": p.wechat_uid,
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"role": p.role,
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}
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for p in persons
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]
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return (area_name, result)
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except Exception as e:
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logger.error(f"查询通知人员失败: {e}")
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return ("未知区域", [])
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finally:
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db.close()
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