diff --git a/rtsp_processor_1.py b/rtsp_processor_1.py
index a26c3a9..42009a1 100644
--- a/rtsp_processor_1.py
+++ b/rtsp_processor_1.py
@@ -8,11 +8,12 @@ from pathlib import Path
 import subprocess
 import logging
 from typing import List, Dict, Tuple, Optional
-from dataclasses import dataclass
 from collections import deque
 import yaml
 
 
+from util.yolo_util import YOLODetector
+from util.entity_utl import DetectionResult, AlarmConfig
 from util.log_util import TimeBasedDuplicateFilter
 
 
@@ -35,23 +36,7 @@ logger = logging.getLogger(__name__)
 # 5为时间间隔,单位s. 5s内不会输出相同日志
 logger.addFilter(TimeBasedDuplicateFilter(5))
 
-@dataclass
-class DetectionResult:
-    """检测结果数据类"""
-    boxes: np.ndarray
-    confidences: np.ndarray
-    class_ids: np.ndarray
-    class_names: List[str]
-    timestamp: datetime
 
-@dataclass
-class AlarmConfig:
-    """告警配置"""
-    target_classes: List[str]  # 目标类别
-    confidence_threshold: float = 0.5  # 置信度阈值
-    alarm_duration: int = 10  # 告警录制时长(秒)
-    cooldown_duration: int = 30  # 告警冷却时间(秒)
-    save_path: str = "./alarm_videos"  # 保存路径
 
 class FrameBuffer:
     """帧缓冲区，用于告警录制"""
@@ -74,34 +59,7 @@ class FrameBuffer:
         
         return frames
 
-class YOLODetector:
-    """YOLO检测器"""
-    def __init__(self, model_path: str = "yolov8n.pt"):
-        self.model = YOLO(model_path)
-        self.class_names = self.model.names
-        
-    def detect(self, frame: np.ndarray, confidence_threshold: float = 0.5) -> DetectionResult:
-        """执行目标检测"""
-        results = self.model(frame, conf=confidence_threshold, verbose=False)
-        
-        if len(results) > 0 and results[0].boxes is not None:
-            boxes = results[0].boxes.xyxy.cpu().numpy()
-            confidences = results[0].boxes.conf.cpu().numpy()
-            class_ids = results[0].boxes.cls.cpu().numpy().astype(int)
-            class_names = [self.class_names[id] for id in class_ids]
-        else:
-            boxes = np.array([])
-            confidences = np.array([])
-            class_ids = np.array([])
-            class_names = []
-        
-        return DetectionResult(
-            boxes=boxes,
-            confidences=confidences,
-            class_ids=class_ids,
-            class_names=class_names,
-            timestamp=datetime.now()
-        )
+
 
 class AlarmManager:
     """告警管理器"""
@@ -425,6 +383,8 @@ class RTSPProcessor:
     def connect_to_rtsp_stream(self, url):
         """ 尝试连接到 RTSP 流 """
         cap = cv2.VideoCapture(url)
+        # 设置缓冲区大小
+        cap.set(cv2.CAP_PROP_BUFFERSIZE, 1)
         # cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*'HEVC'))
         if not cap.isOpened():
             logger.error(f"Failed to connect to {url}")
@@ -435,9 +395,6 @@ class RTSPProcessor:
         """捕获RTSP流帧"""
         cap = self.connect_to_rtsp_stream(self.rtsp_url)
 
-        # 设置缓冲区大小
-        cap.set(cv2.CAP_PROP_BUFFERSIZE, 1)
-
         logger.info(f"开始捕获RTSP流: {self.rtsp_url}")
 
         try:
diff --git a/util/entity_utl.py b/util/entity_utl.py
new file mode 100644
index 0000000..d3ca645
--- /dev/null
+++ b/util/entity_utl.py
@@ -0,0 +1,22 @@
+import numpy as np
+from datetime import datetime
+from typing import List
+from dataclasses import dataclass
+
+@dataclass
+class DetectionResult:
+    """检测结果数据类"""
+    boxes: np.ndarray
+    confidences: np.ndarray
+    class_ids: np.ndarray
+    class_names: List[str]
+    timestamp: datetime
+
+@dataclass
+class AlarmConfig:
+    """告警配置"""
+    target_classes: List[str]  # 目标类别
+    confidence_threshold: float = 0.5  # 置信度阈值
+    alarm_duration: int = 10  # 告警录制时长(秒)
+    cooldown_duration: int = 30  # 告警冷却时间(秒)
+    save_path: str = "./alarm_videos"  # 保存路径
\ No newline at end of file
diff --git a/util/yolo_util.py b/util/yolo_util.py
new file mode 100644
index 0000000..3f8bb03
--- /dev/null
+++ b/util/yolo_util.py
@@ -0,0 +1,33 @@
+from ultralytics import YOLO
+import numpy as np 
+from util.entity_utl import DetectionResult
+from datetime import datetime
+
+class YOLODetector:
+    """YOLO检测器"""
+    def __init__(self, model_path: str = "yolov8n.pt"):
+        self.model = YOLO(model_path)
+        self.class_names = self.model.names
+        
+    def detect(self, frame: np.ndarray, confidence_threshold: float = 0.5) -> DetectionResult:
+        """执行目标检测"""
+        results = self.model(frame, conf=confidence_threshold, verbose=False)
+        
+        if len(results) > 0 and results[0].boxes is not None:
+            boxes = results[0].boxes.xyxy.cpu().numpy()
+            confidences = results[0].boxes.conf.cpu().numpy()
+            class_ids = results[0].boxes.cls.cpu().numpy().astype(int)
+            class_names = [self.class_names[id] for id in class_ids]
+        else:
+            boxes = np.array([])
+            confidences = np.array([])
+            class_ids = np.array([])
+            class_names = []
+        
+        return DetectionResult(
+            boxes=boxes,
+            confidences=confidences,
+            class_ids=class_ids,
+            class_names=class_names,
+            timestamp=datetime.now()
+        )
\ No newline at end of file