将参数传进biz，并存为dict

biz/checkpoint/checkpoint_biz.py

@@ -693,11 +693,13 @@ class KadianDetector:
 
 # ========================= 帧处理线程 =========================
 class FrameProcessorWorker(threading.Thread):
-    def __init__(self, raw_queue: queue.Queue, ws_queue: queue.Queue, stop_event: threading.Event):
+    def __init__(self, raw_queue: queue.Queue, ws_queue: queue.Queue, stop_event: threading.Event, cameras=None):
         super().__init__(daemon=True)
         self.raw_queue = raw_queue
         self.ws_queue = ws_queue
         self.stop_event = stop_event
+        # 将摄像头列表转换为字典，key为id，方便通过camera_id快速查找
+        self.cameras = {cam.id: cam for cam in cameras} if cameras is not None else {}
 
         self.last_ts: Dict[int, float] = {}