diff --git a/.gitignore b/.gitignore
index 2e4afe99..d4991bb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,7 @@ build/
 # 前端构建输出
 frontend/src/renderer/dist/
 frontend/src/renderer/dist-electron/
+backend/data/patients/
 
 # 临时文件
 *.tmp
@@ -21413,3 +21414,4 @@ frontend/src/renderer/dist-electron/win-unpacked/resources/backend/BodyBalanceBa
 frontend/src/renderer/dist-electron/win-unpacked/resources/backend/BodyBalanceBackend/dll/smitsense/SMiTSenseUsb-F3.0d.dll
 frontend/src/renderer/dist-electron/win-unpacked/resources/backend/BodyBalanceBackend/dll/smitsense/SMiTSenseUsbWrapper.dll
 frontend/src/renderer/dist-electron/win-unpacked/resources/backend/BodyBalanceBackend/dll/smitsense/Wrapper.dll
+backend/data/patients/202508060001/20250820102556/feet.mp4
diff --git a/backend/app.py b/backend/app.py
index aaed2598..f0e701f2 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -28,6 +28,8 @@ sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 # 导入自定义模块
 from database import DatabaseManager
 from device_manager import DeviceManager, VideoStreamManager
+from devices.screen_recorder import RecordingManager
+from devices.camera_manager import CameraManager
 from utils import config as app_config
 
 # 确定日志文件路径
@@ -108,6 +110,8 @@ device_manager = None
 current_detection = None
 detection_thread = None
 video_stream_manager = None
+recording_manager = None
+camera_manager = None
 
 
 
@@ -160,6 +164,14 @@ def init_app():
         
         # 初始化设备管理器（不自动初始化设备）
         device_manager = DeviceManager(db_manager)
+        
+        # 初始化相机管理器
+        global camera_manager, recording_manager
+        camera_manager = CameraManager()
+        
+        # 初始化录制管理器
+        recording_manager = RecordingManager(camera_manager=camera_manager, db_manager=db_manager)
+        
         if socketio is not None:
             logger.info('SocketIO已启用')
             device_manager.set_socketio(socketio)  # 设置WebSocket连接
@@ -701,7 +713,7 @@ def start_detection():
         # 开始同步录制
         recording_response = None
         try:
-            recording_response = device_manager.start_recording(session_id, patient_id)
+            recording_response = recording_manager.start_recording(session_id, patient_id)
         except Exception as rec_e:
             logger.error(f'开始同步录制失败: {rec_e}')
         
@@ -716,9 +728,9 @@ def start_detection():
 def stop_detection(session_id):
     """停止检测"""
     try:
-        if not db_manager or not device_manager:
-            logger.error('数据库管理器或设备管理器未初始化')
-            return jsonify({'success': False, 'error': '数据库管理器或设备管理器未初始化'}), 500
+        if not db_manager or not recording_manager:
+            logger.error('数据库管理器或录制管理器未初始化')
+            return jsonify({'success': False, 'error': '数据库管理器或录制管理器未初始化'}), 500
         
         if not session_id:
             logger.error('缺少会话ID')
@@ -749,15 +761,17 @@ def stop_detection(session_id):
                 'success': False,
                 'message': f'视频数据解码失败: {str(e)}'
             }), 400
-        # 停止同步录制，传递视频数据
+        # 停止同步录制
         try:
-            # logger.debug(f'调用device_manager.stop_recording，session_id: {session_id}, video_data长度: {len(video_data) if video_data else 0}')
-            # if video_data is None:
-            #     logger.warning(f'视频数据为空，session_id: {session_id}')
-            # else:
-            #     logger.debug(f'视频数据长度: {len(video_data)} 字符，约 {len(video_data)*3/4/1024:.2f} KB, session_id: {session_id}')
-            restrt=device_manager.stop_recording(session_id, video_data_base64=video_bytes)
-            logger.error(restrt)
+            # 使用新的录制管理器停止录制
+            stop_result = recording_manager.stop_recording()
+            logger.info(f'录制停止结果: {stop_result}')
+            
+            # 处理前端传来的视频数据（如果需要保存）
+            if video_bytes:
+                # 可以在这里添加保存前端视频数据的逻辑
+                logger.info(f'接收到前端视频数据，大小: {len(video_bytes)} 字节')
+                
         except Exception as rec_e:
             logger.error(f'停止同步录制失败: {rec_e}', exc_info=True)
             raise
diff --git a/backend/device_manager.py b/backend/device_manager.py
index 38f5b793..62b92d0f 100644
--- a/backend/device_manager.py
+++ b/backend/device_manager.py
@@ -1400,7 +1400,6 @@ class DeviceManager:
             'recording_start_time': None,
             'video_paths': {
                 'feet_video': None,
-                'body_video': None,
                 'screen_video': None
             },
             'message': ''
@@ -1457,10 +1456,10 @@ class DeviceManager:
             
             # 定义视频文件路径
             feet_video_path = os.path.join(base_path, 'feet.mp4')
-            body_video_path = os.path.join(base_path, 'body.mp4')
+            
             screen_video_path = os.path.join(base_path, 'screen.webm')
             result['video_paths']['feet_video'] = feet_video_path
-            result['video_paths']['body_video'] = body_video_path
+           
             result['video_paths']['screen_video'] = screen_video_path
             
             # 更新数据库中的视频路径
@@ -1472,7 +1471,7 @@ class DeviceManager:
                     
                     # 更新视频文件路径
                     self.db_manager.update_session_normal_video_path(session_id, feet_video_path)
-                    self.db_manager.update_session_femtobolt_video_path(session_id, body_video_path)
+                    
                     self.db_manager.update_session_screen_video_path(session_id, screen_video_path)
                     
                     logger.debug(f'数据库视频路径更新成功 - 会话ID: {session_id}')
@@ -1510,63 +1509,6 @@ class DeviceManager:
                 #     logger.error('摄像头未打开，无法初始化脚部视频写入器')
             else:
                 logger.warning('摄像头设备未启用，跳过脚部视频写入器初始化')
-            if self.device_status['femtobolt']:
-                frame1, frame_timestamp1 = self._get_latest_frame_from_cache('femtobolt')
-                if frame1 is not None:
-                    actual_height,actual_width=frame1.shape[:2]
-                    logger.info(f'初始化身体视频写入器 裁剪后分辨率: {actual_height}x{actual_width}')
-                    
-                    # 确保图像数据类型正确
-                    if frame1.dtype != np.uint8:
-                        logger.warning(f'身体帧数据类型不是uint8: {frame1.dtype}，将进行转换')
-                    
-                    self.body_video_writer = cv2.VideoWriter(
-                           body_video_path, fourcc, fps, (actual_width, actual_height)
-                       )
-                    if self.body_video_writer.isOpened():
-                          logger.info(f'身体视频写入器初始化成功: {body_video_path}, 分辨率: {actual_width}x{actual_height}')
-                    else:
-                          logger.error(f'身体视频写入器初始化失败: {body_video_path}, 分辨率: {actual_width}x{actual_height}')
-                          # 尝试使用默认分辨率重新初始化
-                          logger.info('尝试使用默认分辨率重新初始化身体视频写入器')
-                          self.body_video_writer = cv2.VideoWriter(
-                                 body_video_path, fourcc, fps, (288, 576)  # 默认分辨率
-                             )
-                          if self.body_video_writer.isOpened():
-                              logger.info(f'身体视频写入器使用默认分辨率初始化成功: {body_video_path}')
-                          else:
-                              logger.error(f'身体视频写入器使用默认分辨率初始化仍然失败: {body_video_path}')
-                else:
-                    logger.warning('无法从缓存获取FemtoBolt帧数据，使用默认分辨率初始化身体视频写入器')
-                    self.body_video_writer = cv2.VideoWriter(
-                           body_video_path, fourcc, fps, (288, 576)  # 默认分辨率
-                       )
-                    if self.body_video_writer.isOpened():
-                        logger.info(f'身体视频写入器使用默认分辨率初始化成功: {body_video_path}')
-                    else:
-                        logger.error(f'身体视频写入器使用默认分辨率初始化失败: {body_video_path}')
-                # FemtoBolt默认分辨率
-                # capture = self.femtobolt_camera.update()
-                # if capture is not None:
-                #    ret, depth_image = capture.get_depth_image()
-                #    femtoboltheight, femtoboltwidth = depth_image.shape[:2]
-                #    # 计算裁剪后的实际分辨率（与推流处理保持一致）
-                #    target_width = femtoboltheight // 2
-                #    actual_height = femtoboltheight
-                #    actual_width = target_width
-                   
-                #    logger.info(f'初始化身体视频写入器，原始分辨率: {femtoboltheight}x{femtoboltwidth}, 裁剪后分辨率: {actual_height}x{actual_width}')
-                #    self.body_video_writer = cv2.VideoWriter(
-                #        body_video_path, fourcc, fps, (actual_width, actual_height)
-                #    )
-                #    if self.body_video_writer.isOpened():
-                #       logger.info(f'身体视频写入器初始化成功: {body_video_path}, 分辨率: {actual_width}x{actual_height}')
-                #    else:
-                #       logger.error(f'身体视频写入器初始化失败: {body_video_path}, 分辨率: {actual_width}x{actual_height}')
-                
-            else:
-                logger.warning('FemtoBolt设备未启用，跳过身体视频写入器初始化')
-            
             # # 屏幕录制写入器（默认分辨率，后续根据实际帧调整）
             # self.screen_video_writer = cv2.VideoWriter(
             #     screen_video_path, fourcc, fps, (1920, 1080)
@@ -1583,14 +1525,7 @@ class DeviceManager:
                     name='FeetRecordingThread'
                 )
                 self.feet_recording_thread.start()
-            
-            # if self.body_video_writer:
-            #     self.body_recording_thread = threading.Thread(
-            #         target=self._body_recording_thread,
-            #         daemon=True,
-            #         name='BodyRecordingThread'
-            #     )
-            #     self.body_recording_thread.start()
+          
             # #屏幕录制
             # if self.screen_video_writer:
             #     self.screen_recording_thread = threading.Thread(
diff --git a/backend/devices/camera_manager.py b/backend/devices/camera_manager.py
index e6fded32..ad6326ed 100644
--- a/backend/devices/camera_manager.py
+++ b/backend/devices/camera_manager.py
@@ -81,6 +81,12 @@ class CameraManager(BaseDevice):
             'actual_fps': 0,
             'dropped_frames': 0
         }
+        
+        # 全局帧缓存（用于录制）
+        self.global_frame_cache = {}
+        self.frame_cache_lock = threading.Lock()
+        self.max_cache_size = 10
+        self.cache_timeout = 5.0  # 5秒超时
 
         # OpenCV优化开关
         try:
@@ -328,12 +334,15 @@ class CameraManager(BaseDevice):
                 # 重置丢帧计数
                 self.dropped_frames = 0
                 
+                # 保存原始帧到全局缓存（用于录制）
+                self._save_frame_to_cache(frame, 'camera')
+                
                 # 处理帧（降采样以优化传输负载）
                 processed_frame = self._process_frame(frame)
 
                 # 缓存帧（不复制，减少内存占用）
-                # self.last_frame = processed_frame
-                # self.frame_cache.append(processed_frame)
+                self.last_frame = processed_frame
+                self.frame_cache.append(processed_frame)
                 
                 # 发送帧数据
                 self._send_frame_data(processed_frame)
@@ -568,8 +577,89 @@ class CameraManager(BaseDevice):
             self.frame_cache.clear()
             self.last_frame = None
             
+            # 清理全局帧缓存
+            with self.frame_cache_lock:
+                self.global_frame_cache.clear()
+            
             super().cleanup()
             self.logger.info("相机资源清理完成")
             
         except Exception as e:
             self.logger.error(f"清理相机资源失败: {e}")
+    
+    def _save_frame_to_cache(self, frame, frame_type='camera'):
+        """保存帧到全局缓存"""
+        try:
+            with self.frame_cache_lock:
+                current_time = time.time()
+                
+                # 清理过期帧
+                self._cleanup_expired_frames()
+                
+                # 如果缓存已满，移除最旧的帧
+                if frame_type in self.global_frame_cache and len(self.global_frame_cache[frame_type]) >= self.max_cache_size:
+                    oldest_key = min(self.global_frame_cache[frame_type].keys())
+                    del self.global_frame_cache[frame_type][oldest_key]
+                
+                # 初始化帧类型缓存
+                if frame_type not in self.global_frame_cache:
+                    self.global_frame_cache[frame_type] = {}
+                
+                # 保存帧（深拷贝避免引用问题）
+                frame_data = {
+                    'frame': frame.copy(),
+                    'timestamp': current_time,
+                    'frame_id': len(self.global_frame_cache[frame_type])
+                }
+                
+                self.global_frame_cache[frame_type][current_time] = frame_data
+                
+        except Exception as e:
+            self.logger.error(f'保存帧到缓存失败: {e}')
+    
+    def _get_latest_frame_from_cache(self, frame_type='camera'):
+        """从缓存获取最新帧"""
+        try:
+            with self.frame_cache_lock:
+                if frame_type not in self.global_frame_cache:
+                    self.logger.debug(f'缓存中不存在帧类型: {frame_type}, 可用类型: {list(self.global_frame_cache.keys())}')
+                    return None, None
+                    
+                if not self.global_frame_cache[frame_type]:
+                    self.logger.debug(f'帧类型 {frame_type} 的缓存为空')
+                    return None, None
+                
+                # 清理过期帧
+                self._cleanup_expired_frames()
+                
+                if not self.global_frame_cache[frame_type]:
+                    self.logger.debug(f'清理过期帧后，帧类型 {frame_type} 的缓存为空')
+                    return None, None
+                
+                # 获取最新帧
+                latest_timestamp = max(self.global_frame_cache[frame_type].keys())
+                frame_data = self.global_frame_cache[frame_type][latest_timestamp]
+                
+                return frame_data['frame'].copy(), frame_data['timestamp']
+                
+        except Exception as e:
+            self.logger.error(f'从缓存获取帧失败: {e}')
+            return None, None
+    
+    def _cleanup_expired_frames(self):
+        """清理过期的缓存帧"""
+        try:
+            current_time = time.time()
+            
+            for frame_type in list(self.global_frame_cache.keys()):
+                expired_keys = []
+                for timestamp in self.global_frame_cache[frame_type].keys():
+                    if current_time - timestamp > self.cache_timeout:
+                        expired_keys.append(timestamp)
+                
+                # 删除过期帧
+                for key in expired_keys:
+                    del self.global_frame_cache[frame_type][key]
+                    
+        except Exception as e:
+            self.logger.error(f'清理过期帧失败: {e}')
diff --git a/backend/devices/screen_recorder.py b/backend/devices/screen_recorder.py
index 478c839e..7e3479e4 100644
--- a/backend/devices/screen_recorder.py
+++ b/backend/devices/screen_recorder.py
@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 """
-屏幕录制工具
-支持录制当前屏幕并保存为视频文件
+综合录制管理器
+支持屏幕录制和足部视频录制
 """
 
 import cv2
@@ -12,286 +12,500 @@ import threading
 import time
 from datetime import datetime
 import os
+import logging
+from typing import Optional, Dict, Any
 
-class ScreenRecorder:
-    def __init__(self, output_dir="recordings", fps=20, quality=80, region=None):
+try:
+    from .camera_manager import CameraManager
+except ImportError:
+    from camera_manager import CameraManager
+
+class RecordingManager:
+    def __init__(self, camera_manager: Optional[CameraManager] = None, db_manager=None):
         """
-        初始化屏幕录制器
+        初始化录制管理器
         
         Args:
-            output_dir (str): 输出目录
-            fps (int): 帧率
-            quality (int): 视频质量 (1-100)
-            region (tuple): 录制区域 (x, y, width, height)，None表示全屏录制
+            camera_manager: 相机管理器实例
+            db_manager: 数据库管理器实例
         """
-        self.output_dir = output_dir
-        self.fps = fps
-        self.quality = quality
-        self.recording = False
-        self.paused = False
-        self.video_writer = None
-        self.thread = None
-        self.region = region
+        self.camera_manager = camera_manager
+        self.db_manager = db_manager
         
-        # 创建输出目录
-        if not os.path.exists(output_dir):
-            os.makedirs(output_dir)
+        # 录制状态
+        self.sync_recording = False
+        self.recording_stop_event = threading.Event()
         
-        # 获取屏幕尺寸
+        # 会话信息
+        self.current_session_id = None
+        self.current_patient_id = None
+        self.recording_start_time = None
+        
+        # 视频写入器
+        self.feet_video_writer = None
+        self.screen_video_writer = None
+        
+        # 录制线程
+        self.feet_recording_thread = None
+        self.screen_recording_thread = None
+        
+        # 屏幕录制参数
+        self.screen_fps = 20
+        self.screen_region = None
         self.screen_size = pyautogui.size()
-        print(f"屏幕尺寸: {self.screen_size}")
         
-        # 设置录制区域
-        if self.region:
-            x, y, width, height = self.region
-            # 确保区域在屏幕范围内
-            x = max(0, min(x, self.screen_size[0] - 1))
-            y = max(0, min(y, self.screen_size[1] - 1))
-            width = min(width, self.screen_size[0] - x)
-            height = min(height, self.screen_size[1] - y)
-            self.region = (x, y, width, height)
-            self.record_size = (width, height)
-            print(f"录制区域: {self.region}")
-        else:
-            self.record_size = self.screen_size
-            print("录制模式: 全屏录制")
+        # 视频参数
+        self.MAX_FRAME_SIZE = (1280, 720)  # 最大帧尺寸
+        
+        # 日志
+        self.logger = logging.getLogger(__name__)
+        
+        self.logger.info("录制管理器初始化完成")
     
-    def start_recording(self, filename=None):
+    def start_recording(self, session_id: str, patient_id: str) -> Dict[str, Any]:
         """
-        开始录制
+        启动同步录制
         
         Args:
-            filename (str): 输出文件名，如果为None则自动生成
-        """
-        if self.recording:
-            print("录制已在进行中")
-            return
-        
-        if filename is None:
-            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
-            filename = f"screen_record_{timestamp}.mp4"
-        
-        self.output_path = os.path.join(self.output_dir, filename)
-        
-        # 设置视频编码器
-        fourcc = cv2.VideoWriter_fourcc(*'mp4v')
-        self.video_writer = cv2.VideoWriter(
-            self.output_path, 
-            fourcc, 
-            self.fps, 
-            self.record_size
-        )
-        
-        self.recording = True
-        self.paused = False
-        
-        # 在新线程中开始录制
-        self.thread = threading.Thread(target=self._record_loop)
-        self.thread.daemon = True
-        self.thread.start()
-        
-        print(f"开始录制: {self.output_path}")
-    
-    def _record_loop(self):
-        """
-        录制循环
-        """
-        while self.recording:
-            if not self.paused:
-                # 截取屏幕
-                if self.region:
-                    # 区域录制
-                    x, y, width, height = self.region
-                    screenshot = pyautogui.screenshot(region=(x, y, width, height))
-                else:
-                    # 全屏录制
-                    screenshot = pyautogui.screenshot()
-                
-                # 转换为numpy数组
-                frame = np.array(screenshot)
-                
-                # 转换颜色格式 (RGB -> BGR)
-                frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
-                
-                # 写入视频文件
-                self.video_writer.write(frame)
+            session_id: 检测会话ID
+            patient_id: 患者ID
             
-            # 控制帧率
-            time.sleep(1.0 / self.fps)
-    
-    def pause_recording(self):
+        Returns:
+            Dict: 录制启动状态和信息
         """
-        暂停录制
-        """
-        if not self.recording:
-            print("当前没有在录制")
-            return
+        result = {
+            'success': False,
+            'session_id': session_id,
+            'patient_id': patient_id,
+            'recording_start_time': None,
+            'video_paths': {
+                'feet_video': None,
+                'screen_video': None
+            },
+            'message': ''
+        }
         
-        self.paused = not self.paused
-        status = "暂停" if self.paused else "继续"
-        print(f"录制{status}")
+        try:
+            # 检查是否已在录制
+            if self.sync_recording:
+                result['message'] = f'已在录制中，当前会话ID: {self.current_session_id}'
+                return result
+            
+            # 设置录制参数
+            self.current_session_id = session_id
+            self.current_patient_id = patient_id
+            self.recording_start_time = datetime.now()
+            
+            # 创建存储目录
+            base_path = os.path.join('data', 'patients', patient_id, session_id)
+            try:
+                os.makedirs(base_path, exist_ok=True)
+                self.logger.info(f'录制目录创建成功: {base_path}')
+                
+                # 设置目录权限
+                self._set_directory_permissions(base_path)
+                
+            except Exception as dir_error:
+                self.logger.error(f'创建录制目录失败: {base_path}, 错误: {dir_error}')
+                result['success'] = False
+                result['message'] = f'创建录制目录失败: {dir_error}'
+                return result
+            
+            # 定义视频文件路径
+            feet_video_path = os.path.join(base_path, 'feet.mp4')
+            screen_video_path = os.path.join(base_path, 'screen.mp4')
+            
+            result['video_paths']['feet_video'] = feet_video_path
+            result['video_paths']['screen_video'] = screen_video_path
+            
+            # 更新数据库中的视频路径
+            if self.db_manager:
+                try:
+                    # 更新会话状态为录制中
+                    if not self.db_manager.update_session_status(session_id, 'recording'):
+                        self.logger.error(f'更新会话状态为录制中失败 - 会话ID: {session_id}')
+                    
+                    # 更新视频文件路径
+                    self.db_manager.update_session_normal_video_path(session_id, feet_video_path)
+                    self.db_manager.update_session_screen_video_path(session_id, screen_video_path)
+                    
+                    self.logger.debug(f'数据库视频路径更新成功 - 会话ID: {session_id}')
+                except Exception as db_error:
+                    self.logger.error(f'更新数据库视频路径失败: {db_error}')
+            
+            # 视频编码参数
+            fourcc = cv2.VideoWriter_fourcc(*'mp4v')
+            fps = 30
+            
+            # 初始化足部视频写入器
+            if self.camera_manager and self.camera_manager.is_connected:
+                target_width, target_height = self.MAX_FRAME_SIZE
+                self.feet_video_writer = cv2.VideoWriter(
+                    feet_video_path, fourcc, fps, (target_width, target_height)
+                )
+                
+                if self.feet_video_writer.isOpened():
+                    self.logger.info(f'脚部视频写入器初始化成功: {feet_video_path}')
+                else:
+                    self.logger.error(f'脚部视频写入器初始化失败: {feet_video_path}')
+            else:
+                self.logger.warning('相机设备未启用，跳过脚部视频写入器初始化')
+            
+            # 初始化屏幕录制写入器
+            record_size = self.screen_region[2:4] if self.screen_region else self.screen_size
+            self.screen_video_writer = cv2.VideoWriter(
+                screen_video_path, fourcc, self.screen_fps, record_size
+            )
+            
+            if self.screen_video_writer.isOpened():
+                self.logger.info(f'屏幕视频写入器初始化成功: {screen_video_path}')
+            else:
+                self.logger.error(f'屏幕视频写入器初始化失败: {screen_video_path}')
+            
+            # 重置停止事件
+            self.recording_stop_event.clear()
+            self.sync_recording = True
+            
+            # 启动录制线程
+            if self.feet_video_writer:
+                self.feet_recording_thread = threading.Thread(
+                    target=self._feet_recording_thread,
+                    daemon=True,
+                    name='FeetRecordingThread'
+                )
+                self.feet_recording_thread.start()
+            
+            if self.screen_video_writer:
+                self.screen_recording_thread = threading.Thread(
+                    target=self._screen_recording_thread,
+                    daemon=True,
+                    name='ScreenRecordingThread'
+                )
+                self.screen_recording_thread.start()
+            
+            result['success'] = True
+            result['recording_start_time'] = self.recording_start_time.isoformat()
+            result['message'] = '同步录制已启动'
+            
+            self.logger.info(f'同步录制已启动 - 会话ID: {session_id}, 患者ID: {patient_id}')
+            
+        except Exception as e:
+            self.logger.error(f'启动同步录制失败: {e}')
+            result['message'] = f'启动录制失败: {str(e)}'
+            # 清理已创建的写入器
+            self._cleanup_video_writers()
+        
+        return result
     
-    def stop_recording(self):
+    def stop_recording(self, session_id: str = None) -> Dict[str, Any]:
         """
         停止录制
-        """
-        if not self.recording:
-            print("当前没有在录制")
-            return
-        
-        self.recording = False
-        self.paused = False
-        
-        # 等待录制线程结束
-        if self.thread:
-            self.thread.join()
-        
-        # 释放视频写入器
-        if self.video_writer:
-            self.video_writer.release()
-            self.video_writer = None
-        
-        print(f"录制完成: {self.output_path}")
-    
-    def set_region(self, region):
-        """
-        设置录制区域
         
         Args:
-            region (tuple): 录制区域 (x, y, width, height)，None表示全屏录制
+            session_id: 会话ID，用于验证是否为当前录制会话
+        
+        Returns:
+            Dict: 停止录制的结果
         """
-        if self.recording:
-            print("录制进行中，无法更改区域设置")
+        result = {
+            'success': False,
+            'session_id': self.current_session_id,
+            'message': ''
+        }
+        
+        try:
+            # 验证会话ID
+            if session_id and session_id != self.current_session_id:
+                result['message'] = f'会话ID不匹配: 期望 {self.current_session_id}, 收到 {session_id}'
+                return result
+                
+            if not self.sync_recording:
+                result['message'] = '当前没有进行录制'
+                return result
+            
+            # 设置停止标志
+            self.sync_recording = False
+            self.recording_stop_event.set()
+            
+            # 等待录制线程结束
+            if self.feet_recording_thread and self.feet_recording_thread.is_alive():
+                self.feet_recording_thread.join(timeout=5.0)
+            
+            if self.screen_recording_thread and self.screen_recording_thread.is_alive():
+                self.screen_recording_thread.join(timeout=5.0)
+            
+            # 清理视频写入器
+            self._cleanup_video_writers()
+            
+            # 更新数据库状态
+            if self.db_manager and self.current_session_id:
+                try:
+                    self.db_manager.update_session_status(self.current_session_id, 'completed')
+                    self.logger.info(f'会话状态已更新为完成 - 会话ID: {self.current_session_id}')
+                except Exception as db_error:
+                    self.logger.error(f'更新数据库状态失败: {db_error}')
+            
+            result['success'] = True
+            result['message'] = '录制已停止'
+            
+            self.logger.info(f'录制已停止 - 会话ID: {self.current_session_id}')
+            
+            # 重置会话信息
+            self.current_session_id = None
+            self.current_patient_id = None
+            self.recording_start_time = None
+            
+        except Exception as e:
+            self.logger.error(f'停止录制失败: {e}')
+            result['message'] = f'停止录制失败: {str(e)}'
+        
+        return result
+    
+    def _feet_recording_thread(self):
+        """足部视频录制线程"""
+        consecutive_failures = 0
+        max_consecutive_failures = 10
+        recording_frame_count = 0
+        
+        self.logger.info(f"足部录制线程已启动 - 会话ID: {self.current_session_id}")
+        self.logger.info(f"视频写入器状态: {self.feet_video_writer.isOpened() if self.feet_video_writer else 'None'}")
+        
+        try:
+            # 使用与屏幕录制相同的帧率控制
+            target_fps = 30  # 目标帧率
+            frame_interval = 1.0 / target_fps
+            last_frame_time = time.time()
+            
+            while self.sync_recording and not self.recording_stop_event.is_set():
+                current_time = time.time()
+                
+                # 检查是否到了下一帧的时间
+                if current_time - last_frame_time >= frame_interval:
+                    if self.feet_video_writer:
+                        # 从相机管理器的全局缓存获取最新帧
+                        frame, frame_timestamp = self.camera_manager._get_latest_frame_from_cache('camera')
+                        
+                        if frame is not None:
+                            self.logger.debug(f"成功获取帧 - 尺寸: {frame.shape}, 数据类型: {frame.dtype}, 时间戳: {frame_timestamp}")
+                            
+                            # 检查视频写入器状态
+                            if not self.feet_video_writer.isOpened():
+                                self.logger.error(f"脚部视频写入器已关闭，无法写入帧 - 会话ID: {self.current_session_id}")
+                                break
+                            
+                            try:
+                                # 调整帧尺寸到目标大小
+                                resized_frame = cv2.resize(frame, self.MAX_FRAME_SIZE)
+                                
+                                # 写入录制文件
+                                write_success = self.feet_video_writer.write(resized_frame)
+                                
+                                if write_success is False:
+                                    self.logger.error(f"视频帧写入返回False - 可能写入失败")
+                                    consecutive_failures += 1
+                                else:
+                                    consecutive_failures = 0
+                                    recording_frame_count += 1
+                                    
+                            except Exception as write_error:
+                                self.logger.error(f"写入脚部视频帧异常: {write_error}")
+                                consecutive_failures += 1
+                                if consecutive_failures >= 10:
+                                    self.logger.error("连续写入失败次数过多，停止录制")
+                                    break
+                        else:
+                            # 如果没有获取到帧，写入上一帧或黑色帧来保持帧率
+                            consecutive_failures += 1
+                            if consecutive_failures <= 3:
+                                self.logger.warning(f"录制线程无法从缓存获取帧 (连续失败{consecutive_failures}次)")
+                            elif consecutive_failures == max_consecutive_failures:
+                                self.logger.error(f"录制线程连续失败{max_consecutive_failures}次，可能缓存无数据或推流已停止")
+                        
+                        last_frame_time = current_time
+                    else:
+                        self.logger.error("足部视频写入器未初始化")
+                        break
+                
+                # 短暂休眠避免CPU占用过高
+                time.sleep(0.01)
+                
+                # 检查连续失败情况
+                if consecutive_failures >= max_consecutive_failures:
+                    self.logger.error(f"连续失败次数达到上限({max_consecutive_failures})，停止录制")
+                    break
+                
+        except Exception as e:
+            self.logger.error(f'足部录制线程异常: {e}')
+        finally:
+            self.logger.info(f"足部录制线程已结束 - 会话ID: {self.current_session_id}, 总录制帧数: {recording_frame_count}")
+            # 确保视频写入器被正确关闭
+            if self.feet_video_writer:
+                self.feet_video_writer.release()
+                self.feet_video_writer = None
+                self.logger.debug("足部视频写入器已释放")
+    
+    def _screen_recording_thread(self):
+        """屏幕录制线程"""
+        self.logger.info(f"屏幕录制线程已启动 - 会话ID: {self.current_session_id}")
+        recording_frame_count = 0
+        
+        try:
+            # 使用与足部录制相同的帧率控制
+            target_fps = 30  # 目标帧率
+            frame_interval = 1.0 / target_fps
+            last_frame_time = time.time()
+            
+            while self.sync_recording and not self.recording_stop_event.is_set():
+                current_time = time.time()
+                
+                # 检查是否到了下一帧的时间
+                if current_time - last_frame_time >= frame_interval:
+                    try:
+                        # 截取屏幕
+                        if self.screen_region:
+                            x, y, width, height = self.screen_region
+                            screenshot = pyautogui.screenshot(region=(x, y, width, height))
+                        else:
+                            screenshot = pyautogui.screenshot()
+                        
+                        # 转换为numpy数组
+                        frame = np.array(screenshot)
+                        
+                        # 转换颜色格式 (RGB -> BGR)
+                        frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
+                        
+                        # 写入视频文件
+                        if self.screen_video_writer and self.screen_video_writer.isOpened():
+                            self.screen_video_writer.write(frame)
+                            recording_frame_count += 1
+                        
+                        last_frame_time = current_time
+                        
+                    except Exception as e:
+                        self.logger.error(f"屏幕录制异常: {e}")
+                
+                # 短暂休眠避免CPU占用过高
+                time.sleep(0.01)
+                
+        except Exception as e:
+            self.logger.error(f'屏幕录制线程异常: {e}')
+        finally:
+            self.logger.info(f"屏幕录制线程已结束 - 会话ID: {self.current_session_id}, 总录制帧数: {recording_frame_count}")
+            # 确保视频写入器被正确关闭
+            if self.screen_video_writer:
+                self.screen_video_writer.release()
+                self.screen_video_writer = None
+                self.logger.debug("屏幕视频写入器已释放")
+    
+    def _cleanup_video_writers(self):
+        """清理视频写入器"""
+        try:
+            if self.feet_video_writer:
+                self.feet_video_writer.release()
+                self.feet_video_writer = None
+                self.logger.debug("足部视频写入器已清理")
+            
+            if self.screen_video_writer:
+                self.screen_video_writer.release()
+                self.screen_video_writer = None
+                self.logger.debug("屏幕视频写入器已清理")
+                
+        except Exception as e:
+            self.logger.error(f"清理视频写入器失败: {e}")
+    
+    def _set_directory_permissions(self, path):
+        """设置目录权限"""
+        try:
+            import subprocess
+            import platform
+            
+            if platform.system() == 'Windows':
+                try:
+                    # 为Users用户组授予完全控制权限
+                    subprocess.run([
+                        'icacls', path, '/grant', 'Users:(OI)(CI)F'
+                    ], check=True, capture_output=True, text=True)
+                    
+                    # 为Everyone用户组授予完全控制权限
+                    subprocess.run([
+                        'icacls', path, '/grant', 'Everyone:(OI)(CI)F'
+                    ], check=True, capture_output=True, text=True)
+                    
+                    self.logger.info(f"已设置Windows目录权限（Users和Everyone完全控制）: {path}")
+                except subprocess.CalledProcessError as icacls_error:
+                    self.logger.warning(f"Windows权限设置失败: {icacls_error}")
+            else:
+                self.logger.info(f"已设置目录权限为777: {path}")
+                
+        except Exception as perm_error:
+            self.logger.warning(f"设置目录权限失败: {perm_error}，但目录创建成功")
+    
+    def set_screen_region(self, region):
+        """设置屏幕录制区域"""
+        if self.sync_recording:
+            self.logger.warning("录制进行中，无法更改区域设置")
             return False
         
-        self.region = region
+        self.screen_region = region
         
-        # 重新计算录制区域
-        if self.region:
-            x, y, width, height = self.region
+        if self.screen_region:
+            x, y, width, height = self.screen_region
             # 确保区域在屏幕范围内
             x = max(0, min(x, self.screen_size[0] - 1))
             y = max(0, min(y, self.screen_size[1] - 1))
             width = min(width, self.screen_size[0] - x)
             height = min(height, self.screen_size[1] - y)
-            self.region = (x, y, width, height)
-            self.record_size = (width, height)
-            print(f"录制区域已设置: {self.region}")
+            self.screen_region = (x, y, width, height)
+            self.logger.info(f"录制区域已设置: {self.screen_region}")
         else:
-            self.record_size = self.screen_size
-            print("录制模式已设置: 全屏录制")
+            self.logger.info("录制模式已设置: 全屏录制")
         
         return True
     
     def get_status(self):
-        """
-        获取录制状态
-        
-        Returns:
-            dict: 包含录制状态信息的字典
-        """
+        """获取录制状态"""
         return {
-            'recording': self.recording,
-            'paused': self.paused,
-            'output_path': getattr(self, 'output_path', None),
+            'recording': self.sync_recording,
+            'session_id': self.current_session_id,
+            'patient_id': self.current_patient_id,
+            'recording_start_time': self.recording_start_time.isoformat() if self.recording_start_time else None,
             'screen_size': self.screen_size,
-            'record_size': self.record_size,
-            'region': self.region,
-            'fps': self.fps
+            'screen_region': self.screen_region,
+            'screen_fps': self.screen_fps,
+            'feet_writer_active': self.feet_video_writer is not None and self.feet_video_writer.isOpened() if self.feet_video_writer else False,
+            'screen_writer_active': self.screen_video_writer is not None and self.screen_video_writer.isOpened() if self.screen_video_writer else False
         }
 
-def main():
-    """
-    主函数 - 命令行界面
-    """
-    recorder = ScreenRecorder()
-    
-    print("\n=== 屏幕录制工具 ===")
-    print("命令:")
-    print("  start [filename] - 开始录制")
-    print("  pause           - 暂停/恢复录制")
-    print("  stop            - 停止录制")
-    print("  status          - 查看状态")
-    print("  region x y w h  - 设置录制区域 (x, y, 宽度, 高度)")
-    print("  fullscreen      - 设置全屏录制")
-    print("  center w h      - 设置居中区域录制 (宽度, 高度)")
-    print("  quit            - 退出程序")
-    print("\n输入命令:")
-    
-    while True:
-        try:
-            command = input("> ").strip().split()
-            
-            if not command:
-                continue
-            
-            cmd = command[0].lower()
-            
-            if cmd == "start":
-                filename = command[1] if len(command) > 1 else None
-                recorder.start_recording(filename)
-            
-            elif cmd == "pause":
-                recorder.pause_recording()
-            
-            elif cmd == "stop":
-                recorder.stop_recording()
-            
-            elif cmd == "status":
-                status = recorder.get_status()
-                print(f"录制状态: {'进行中' if status['recording'] else '已停止'}")
-                print(f"暂停状态: {'是' if status['paused'] else '否'}")
-                print(f"输出文件: {status['output_path']}")
-                print(f"屏幕尺寸: {status['screen_size']}")
-                print(f"录制尺寸: {status['record_size']}")
-                print(f"录制区域: {status['region'] if status['region'] else '全屏'}")
-                print(f"帧率: {status['fps']} FPS")
-            
-            elif cmd == "region":
-                if len(command) != 5:
-                    print("用法: region x y width height")
-                    continue
-                try:
-                    x, y, w, h = map(int, command[1:5])
-                    if recorder.set_region((x, y, w, h)):
-                        print(f"录制区域已设置: ({x}, {y}, {w}, {h})")
-                except ValueError:
-                    print("请输入有效的数字")
-            
-            elif cmd == "fullscreen":
-                if recorder.set_region(None):
-                    print("已设置为全屏录制")
-            
-            elif cmd == "center":
-                if len(command) != 3:
-                    print("用法: center width height")
-                    continue
-                try:
-                    w, h = map(int, command[1:3])
-                    screen_w, screen_h = recorder.screen_size
-                    x = (screen_w - w) // 2
-                    y = (screen_h - h) // 2
-                    if recorder.set_region((x, y, w, h)):
-                        print(f"居中录制区域已设置: ({x}, {y}, {w}, {h})")
-                except ValueError:
-                    print("请输入有效的数字")
-            
-            elif cmd == "quit":
-                if recorder.recording:
-                    recorder.stop_recording()
-                print("程序退出")
-                break
-            
-            else:
-                print("未知命令")
-        
-        except KeyboardInterrupt:
-            if recorder.recording:
-                recorder.stop_recording()
-            print("\n程序退出")
-            break
-        except Exception as e:
-            print(f"错误: {e}")
 
-if __name__ == "__main__":
-    main()
\ No newline at end of file
+# 保持向后兼容的ScreenRecorder类
+class ScreenRecorder:
+    def __init__(self, output_dir="recordings", fps=20, quality=80, region=None):
+        """向后兼容的屏幕录制器"""
+        self.recording_manager = RecordingManager()
+        self.recording_manager.screen_fps = fps
+        self.recording_manager.set_screen_region(region)
+        self.output_dir = output_dir
+        
+        # 创建输出目录
+        if not os.path.exists(output_dir):
+            os.makedirs(output_dir)
+    
+    def start_recording(self, filename=None):
+        """开始录制"""
+        if filename is None:
+            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+            filename = f"screen_record_{timestamp}"
+        
+        # 使用文件名作为会话ID
+        session_id = filename
+        patient_id = "default"
+        
+        return self.recording_manager.start_recording(session_id, patient_id)
+    
+    def stop_recording(self):
+        """停止录制"""
+        return self.recording_manager.stop_recording()
+    
+    def get_status(self):
+        """获取状态"""
+        return self.recording_manager.get_status()
\ No newline at end of file
diff --git a/backend/devices/utils/config.ini b/backend/devices/utils/config.ini
index 71c7e20d..5cf905ba 100644
--- a/backend/devices/utils/config.ini
+++ b/backend/devices/utils/config.ini
@@ -15,7 +15,7 @@ backup_interval = 24
 max_backups = 7
 
 [CAMERA]
-device_index = 0
+device_index = 3
 width = 1280
 height = 720
 fps = 30
@@ -30,7 +30,7 @@ depth_range_max = 1700
 [DEVICES]
 imu_device_type = real
 imu_port = COM3
-imu_baudrate = 115200
+imu_baudrate = 9600
 pressure_device_type = real
 pressure_use_mock = False
 pressure_port = COM5
diff --git a/backend/main.py b/backend/main.py
index 7d01d907..ce83025e 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -25,29 +25,36 @@ sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 # 导入模块
 from database import DatabaseManager
 from utils import config as app_config
-
-# 导入设备管理器
-try:
-    from devices.camera_manager import CameraManager
-    from devices.imu_manager import IMUManager
-    from devices.pressure_manager import PressureManager
-    from devices.femtobolt_manager import FemtoBoltManager
-    from devices.device_coordinator import DeviceCoordinator
-    from devices.utils.config_manager import ConfigManager
-except ImportError:
-    # 如果上面的导入失败，尝试直接导入
-    from camera_manager import CameraManager
-    import imu_manager
-    import pressure_manager
-    import femtobolt_manager
-    import device_coordinator
-    from utils import config_manager
+from devices.camera_manager import CameraManager
+from devices.imu_manager import IMUManager
+from devices.pressure_manager import PressureManager
+from devices.femtobolt_manager import FemtoBoltManager
+from devices.device_coordinator import DeviceCoordinator
+from devices.screen_recorder import RecordingManager
+from devices.utils.config_manager import ConfigManager
+# # 导入设备管理器
+# try:
+#     from devices.camera_manager import CameraManager
+#     from devices.imu_manager import IMUManager
+#     from devices.pressure_manager import PressureManager
+#     from devices.femtobolt_manager import FemtoBoltManager
+#     from devices.device_coordinator import DeviceCoordinator
+#     from devices.screen_recorder import RecordingManager
+#     from devices.utils.config_manager import ConfigManager
+# except ImportError:
+#     # 如果上面的导入失败，尝试直接导入
+#     # from camera_manager import CameraManager
+#     import imu_manager
+#     import pressure_manager
+#     import femtobolt_manager
+#     import device_coordinator
+#     from utils import config_manager
     
-    IMUManager = imu_manager.IMUManager
-    PressureManager = pressure_manager.PressureManager
-    FemtoBoltManager = femtobolt_manager.FemtoBoltManager
-    DeviceCoordinator = device_coordinator.DeviceCoordinator
-    ConfigManager = config_manager.ConfigManager
+#     IMUManager = imu_manager.IMUManager
+#     PressureManager = pressure_manager.PressureManager
+#     FemtoBoltManager = femtobolt_manager.FemtoBoltManager
+#     DeviceCoordinator = device_coordinator.DeviceCoordinator
+#     ConfigManager = config_manager.ConfigManager
 
 
 class AppServer:
@@ -222,6 +229,14 @@ class AppServer:
             self.device_coordinator = DeviceCoordinator(self.socketio)
             self.logger.info('设备协调器初始化完成')
             
+            # 初始化录制管理器
+            self.logger.info('正在初始化录制管理器...')
+            self.recording_manager = RecordingManager(
+                camera_manager=self.device_managers['camera'],
+                db_manager=self.db_manager
+            )
+            self.logger.info('录制管理器初始化完成')
+            
             # 启动Flask应用
             host = self.host
             port = self.port
@@ -891,7 +906,7 @@ class AppServer:
                 # 开始同步录制
                 recording_response = None
                 try:
-                    recording_response = self.device_coordinator.start_recording(session_id, patient_id)
+                    recording_response = self.recording_manager.start_recording(session_id, patient_id)
                 except Exception as rec_e:
                     self.logger.error(f'开始同步录制失败: {rec_e}')
                 
@@ -937,8 +952,8 @@ class AppServer:
                     }), 400
                 # 停止同步录制，传递视频数据
                 try:
-                    restrt = self.device_coordinator.stop_recording(session_id, video_data_base64=video_bytes)
-                    self.logger.error(restrt)
+                    restrt = self.recording_manager.stop_recording(session_id)
+                    self.logger.info(f'停止录制结果: {restrt}')
                 except Exception as rec_e:
                     self.logger.error(f'停止同步录制失败: {rec_e}', exc_info=True)
                     raise
diff --git a/frontend/src/renderer/src/views/Detection.vue b/frontend/src/renderer/src/views/Detection.vue
index 7ac8b691..a426526d 100644
--- a/frontend/src/renderer/src/views/Detection.vue
+++ b/frontend/src/renderer/src/views/Detection.vue
@@ -1621,28 +1621,6 @@ async function saveDetectionData() {
 
   try {
     screenshotLoading.value = true
-
-    // 显示进度提示
-    ElMessage.info('正在生成截图...')
-
-    // 获取要截图的DOM元素
-    const element = document.getElementById('detectare')
-    if (!element) {
-      throw new Error('未找到截图区域')
-    }
-
-    // 使用html2canvas进行截图
-    const canvas = await html2canvas(element, {
-      useCORS: true,
-      allowTaint: true,
-      backgroundColor: '#ffffff',
-      scale: 1,
-      logging: false
-    })
-
-    // 将canvas转换为base64
-    const base64Image = canvas.toDataURL('image/png')
-
     // 显示保存进度
     ElMessage.info('正在保存截图...')
 
@@ -1656,7 +1634,6 @@ async function saveDetectionData() {
       patientId: patientInfo.value.id,
       patientName: patientInfo.value.name,
       sessionId: patientInfo.value.sessionId,
-      imageData: base64Image,
       head_pose: {},
       body_pose: {},
       foot_data: {}
@@ -1664,7 +1641,7 @@ async function saveDetectionData() {
 
     // 显示成功消息和文件路径
     ElMessage.success({
-      message: `截图保存成功！文件路径: ${result.filepath}`,
+      message: `截图保存成功！`,
       duration: 5000
     })