188 lines
7.8 KiB
Python
188 lines
7.8 KiB
Python
"""
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AI Box Sophon Adapter 插件
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基于 MQTT 的 AI Box 设备心跳适配器，实现：
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1. 通过 MQTT 主题接收设备心跳上报
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2. 解析设备系统参数（温度、硬盘、内存、通道、任务、TPU 等）
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3. 持久化心跳数据到 SQLite 数据库
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4. 提供 HTTP API 查询设备在线状态和详情
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5. 后台定时检查离线设备，触发异常告警
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6. 视频上传接口 — 盒子告警时录制视频上传（FORM-DATA）
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7. 告警上报接口 — 违规事件 JSON 报文字动解析入库
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8. 告警查询接口 — 告警列表/详情查询
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心跳超时机制:
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- 设备按配置间隔（默认 5 秒）上报心跳
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- 服务端每 check_interval 秒检查一次
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- 超过 heartbeat_timeout 秒未收到心跳的设备标记为离线
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生命周期: 基于 Plugin 基类统一管理（数据库/后台任务/清理钩子由基类处理），
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MQTT 客户端启动块已抽取到 mqtt_clients 能力组件。
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"""
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import asyncio
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import logging
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from datetime import datetime
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from pathlib import Path
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from chongming_worker.plugin import Plugin
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from .router import * # noqa: F401,F403 触发 @rpc_method 注册
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from .routes import router # noqa: F401 自定义 FastAPI 路由（网关通过包属性自动发现）
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from .edge_app_controller import edge_app_controller # noqa: F401
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from .mqtt_clients import start_mqtt_forward, start_mqtt_subscribe, start_internal_mqtt
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logger = logging.getLogger(__name__)
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async def _check_offline_devices(interval: float):
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"""
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后台任务：定期检查离线设备
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每隔 interval 秒扫描数据库，将超过 heartbeat_timeout 秒
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未收到心跳的设备标记为离线，并输出告警日志。
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"""
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from .global_var import db, heartbeat_timeout
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while True:
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await asyncio.sleep(interval)
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try:
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if db is None:
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continue
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async with db.get_session() as session:
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from .models.orm import BoardHeartbeat
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from sqlalchemy import select
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stmt = select(BoardHeartbeat).where(BoardHeartbeat.is_online)
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result = await session.execute(stmt)
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records = result.scalars().all()
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now = datetime.now()
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offline_count = 0
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for record in records:
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elapsed = (now - record.last_ping_time).total_seconds()
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if elapsed > heartbeat_timeout:
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record.is_online = False
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record.updated_at = now
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offline_count += 1
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logger.warning(
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f"[Offline] 设备 {record.board_id} (IP: {record.board_ip}) "
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f"已离线 {elapsed:.0f} 秒（超时阈值: {heartbeat_timeout}s）"
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)
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if offline_count > 0:
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await session.commit()
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logger.info(f"[Offline] 本轮标记 {offline_count} 个设备为离线")
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except Exception as e:
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logger.error(f"[OfflineChecker] 检查异常: {e}")
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class AiboxSophonAdapterPlugin(Plugin):
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"""AI Box 适配插件 — 统一生命周期。"""
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type = "aibox_sophon_adapter"
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db_name = "aibox_sophon_adapter.db" # 自动在 data_dir 下建 SQLite 库
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auto_bind = True # 首次初始化时自动 auto_bind_models
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async def on_init(self):
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"""首次 create_workers 时调用一次：初始化数据库客户端、流控制器、后台任务。"""
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config = self.config
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from .global_var import set_global_var, heartbeat_timeout as _default_timeout
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from chongming_stream_manager import StreamManager
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# 所有运行时配置均从 [workers.config] 及其子节读取
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data_dir = Path(config.get("data_dir", "./data"))
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mediamtx_addr = config.get("mediamtx_addr", "rtsp://127.0.0.1:8554")
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link_path = config.get("link_path", "/data/bm-app")
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# 心跳配置
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heartbeat = config.get("heartbeat", {})
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hb_interval = heartbeat.get("interval", 5)
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hb_timeout = heartbeat.get("timeout", _default_timeout)
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check_interval = heartbeat.get("check_interval", 10)
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# 告警保留配置
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alarm_retention = config.get("alarm_retention", {})
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alarm_max = alarm_retention.get("max_records", 0)
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# 豆包 AI 分析开关
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doubao_cfg = config.get("doubao_analysis", {})
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doubao_enabled = doubao_cfg.get("enabled", True)
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# 告警转发配置
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alarm_fwd_cfg = config.get("alarm_forward", {})
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alarm_fwd_enabled = alarm_fwd_cfg.get("enabled", False)
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alarm_fwd_url = alarm_fwd_cfg.get("url", "http://dg.datagoo.cn:60014/open-api/event-alarm/receive")
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alarm_fwd_video_url = alarm_fwd_cfg.get("video_upload_url", "http://dg.datagoo.cn:60014/open-api/event-alarm/receiveVideoUpload")
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alarm_fwd_timeout = alarm_fwd_cfg.get("timeout", 10.0)
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# 数据库已由基类初始化（data_dir/aibox_sophon_adapter.db）
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db = self.db
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# 初始化视频流控制器
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stream_manager = StreamManager(mediamtx_addr)
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# upload 根目录（用于清理告警关联视频）
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upload_root_path = str(data_dir / "uploads")
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# MQTT 客户端能力组件（启动失败降级为 None，仅警告）
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mqtt_fwd_client = await start_mqtt_forward(config.get("mqtt_forward", {}))
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mqtt_sub_client = await start_mqtt_subscribe(config.get("mqtt_subscribe", {}))
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int_mqtt_client, int_req_topic, int_resp_topic = await start_internal_mqtt(
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config.get("internal_mqtt", {})
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)
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set_global_var("db", db)
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set_global_var("heartbeat_timeout", hb_timeout)
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set_global_var("heartbeat_interval", hb_interval)
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set_global_var("stream_manager", stream_manager)
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set_global_var("link_path", link_path)
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set_global_var("mqtt_forward", mqtt_fwd_client)
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set_global_var("mqtt_subscribe", mqtt_sub_client)
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set_global_var("internal_mqtt", int_mqtt_client)
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set_global_var("internal_request_topic", int_req_topic)
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set_global_var("internal_response_topic", int_resp_topic)
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set_global_var("upload_root", upload_root_path)
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set_global_var("alarm_max_records", alarm_max)
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set_global_var("doubao_analysis_enabled", doubao_enabled)
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set_global_var("alarm_forward_enabled", alarm_fwd_enabled)
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set_global_var("alarm_forward_url", alarm_fwd_url)
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set_global_var("alarm_forward_video_url", alarm_fwd_video_url)
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set_global_var("alarm_forward_timeout", alarm_fwd_timeout)
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logger.info(
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"[aibox_sophon_adapter] 已初始化: "
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f"心跳间隔={hb_interval}s, 超时={hb_timeout}s, 检查间隔={check_interval}s"
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)
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# 后台任务由基类跟踪，cleanup 时自动取消
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self.spawn_task(_check_offline_devices(check_interval))
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async def on_cleanup(self):
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"""cleanup 时调用：关闭流控制器与外部 MQTT 客户端（db 与后台任务由基类处理）。"""
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from .global_var import (
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stream_manager, mqtt_forward, mqtt_subscribe, internal_mqtt,
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)
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if stream_manager is not None:
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await stream_manager.stop_all()
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if mqtt_forward is not None:
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await mqtt_forward.stop()
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if mqtt_subscribe is not None:
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await mqtt_subscribe.stop()
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if internal_mqtt is not None:
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await internal_mqtt.stop()
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logger.info("[aibox_sophon_adapter] 清理完成")
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# 暴露给 app lifespan 的模块级入口（bound method，签名与旧写法完全一致）
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# 注意: 实例名必须为 plugin（router 已被 routes.router APIRouter 占用）
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plugin = AiboxSophonAdapterPlugin()
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create_workers = plugin.create_workers
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cleanup = plugin.cleanup
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