diff --git a/.gitignore b/.gitignore
index 1086e3f3..794d571a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21420,3 +21420,5 @@ frontend/src/renderer/src/services/api.js
 frontend/src/renderer/src/services/api.js
 frontend/src/renderer/src/services/api.js
 frontend/src/renderer/src/services/api.js
+frontend/src/renderer/src/services/api.js
+backend/devices/utils/config.ini
diff --git a/backend/devices/camera_manager.py b/backend/devices/camera_manager.py
index ad6326ed..7b2243db 100644
--- a/backend/devices/camera_manager.py
+++ b/backend/devices/camera_manager.py
@@ -12,7 +12,7 @@ import base64
 import numpy as np
 from typing import Optional, Dict, Any, Tuple
 import logging
-from collections import deque
+import queue
 import gc
 
 try:
@@ -60,7 +60,7 @@ class CameraManager(BaseDevice):
         # 流控制
         self.streaming_thread = None
         # 减小缓存长度，保留最近2帧即可，避免累计占用
-        self.frame_cache = deque(maxlen=int(config.get('frame_cache_len', 2)))
+        self.frame_cache = queue.Queue(maxsize=int(config.get('frame_cache_len', 2)))
         self.last_frame = None
         self.frame_count = 0
         self.dropped_frames = 0
@@ -82,11 +82,8 @@ class CameraManager(BaseDevice):
             '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
+        # 全局帧队列（用于录制）
+        self.frame_queue = queue.Queue(maxsize=10)  # 最大长度10，自动丢弃旧帧
 
         # OpenCV优化开关
         try:
@@ -334,15 +331,29 @@ 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')
+                # 保存原始帧到队列（用于录制）
+                try:
+                    self.frame_queue.put_nowait({
+                        'frame': frame.copy(),
+                        'timestamp': time.time()
+                    })
+                except queue.Full:
+                    # 队列满时丢弃最旧的帧，添加新帧
+                    try:
+                        self.frame_queue.get_nowait()  # 移除最旧的帧
+                        self.frame_queue.put_nowait({
+                            'frame': frame.copy(),
+                            'timestamp': time.time()
+                        })
+                    except queue.Empty:
+                        pass  # 队列为空，忽略
                 
                 # 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)
+                # # 缓存帧（不复制，减少内存占用）
+                # self.last_frame = processed_frame
+                # self.frame_cache.append(processed_frame)
                 
                 # 发送帧数据
                 self._send_frame_data(processed_frame)
@@ -530,15 +541,7 @@ class CameraManager(BaseDevice):
             self.logger.error(f"捕获图像异常: {e}")
             return None
             
-    def get_latest_frame(self) -> Optional[np.ndarray]:
-        """
-        获取最新帧
-        
-        Returns:
-            Optional[np.ndarray]: 最新帧，无帧返回None
-        """
-        # 对外提供拷贝，内部保持原对象，避免重复持有
-        return self.last_frame.copy() if self.last_frame is not None else None
+  
         
     def disconnect(self):
         """
@@ -574,12 +577,20 @@ class CameraManager(BaseDevice):
                     pass
                 self.cap = None
                 
-            self.frame_cache.clear()
+            # 清理帧缓存
+            while not self.frame_cache.empty():
+                try:
+                    self.frame_cache.get_nowait()
+                except queue.Empty:
+                    break
             self.last_frame = None
             
-            # 清理全局帧缓存
-            with self.frame_cache_lock:
-                self.global_frame_cache.clear()
+            # 清理帧队列
+            while not self.frame_queue.empty():
+                try:
+                    self.frame_queue.get_nowait()
+                except queue.Empty:
+                    break
             
             super().cleanup()
             self.logger.info("相机资源清理完成")
@@ -618,48 +629,34 @@ class CameraManager(BaseDevice):
             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"""
+        """从队列获取最新帧"""
         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()
+            if self.frame_queue.empty():
+                self.logger.debug('帧队列为空')
+                return None, None
             
-            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)
+            # 获取队列中的所有帧，保留最新的一个
+            frames = []
+            while not self.frame_queue.empty():
+                try:
+                    frames.append(self.frame_queue.get_nowait())
+                except queue.Empty:
+                    break
+            
+            if not frames:
+                return None, None
+            
+            # 获取最新帧（最后一个）
+            latest_frame = frames[-1]
+            
+            # 将最新帧重新放回队列
+            try:
+                self.frame_queue.put_nowait(latest_frame)
+            except queue.Full:
+                pass  # 队列满时忽略
+            
+            return latest_frame['frame'].copy(), latest_frame['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}')
+            self.logger.error(f'从队列获取帧失败: {e}')
+            return None, None
diff --git a/backend/devices/imu_manager.py b/backend/devices/imu_manager.py
index d925bc5e..f24bab8f 100644
--- a/backend/devices/imu_manager.py
+++ b/backend/devices/imu_manager.py
@@ -67,7 +67,6 @@ class RealIMUDevice:
         if 'head_pose_offset' in calibration:
             self.head_pose_offset = calibration['head_pose_offset']
         logger.debug(f'应用IMU校准数据: {self.head_pose_offset}')
-
     def apply_calibration(self, raw_data: Dict[str, Any]) -> Dict[str, Any]:
         """应用校准：将当前姿态减去初始偏移，得到相对于初始姿态的变化量"""
         if not raw_data or 'head_pose' not in raw_data:
@@ -76,15 +75,14 @@ class RealIMUDevice:
         # 应用校准偏移
         calibrated_data = raw_data.copy()
         head_pose = raw_data['head_pose'].copy()
-        
+        angle=head_pose['rotation'] - self.head_pose_offset['rotation']
         # 减去基准值（零点偏移）
-        head_pose['rotation'] = head_pose['rotation'] - self.head_pose_offset['rotation']
+        head_pose['rotation'] = ((angle + 180) % 360) - 180
         head_pose['tilt'] = head_pose['tilt'] - self.head_pose_offset['tilt']
         head_pose['pitch'] = head_pose['pitch'] - self.head_pose_offset['pitch']
         
         calibrated_data['head_pose'] = head_pose
         return calibrated_data
-
     @staticmethod
     def _checksum(data: bytes) -> int:
         return sum(data[:-1]) & 0xFF
@@ -115,7 +113,7 @@ class RealIMUDevice:
                 'yaw': yaw,
                 'temperature': temp
             }
-            # logger.debug(f'解析姿态角包: roll={roll}, pitch={pitch}, yaw={yaw}, temp={temp}')
+            # print(f'解析姿态角包: roll={roll}, pitch={pitch}, yaw={yaw}, temp={temp}')
             return self.last_data
         else:
             # logger.debug(f'忽略的数据包类型: 0x{packet_type:02X}')
@@ -356,37 +354,16 @@ class IMUManager(BaseDevice):
                 
             self.logger.info('开始IMU快速零点校准...')
             
-            # 收集校准样本
-            calibration_samples = []
-            sample_count = 50  # 减少样本数量以加快校准速度
+            # 直接读取一次原始数据作为校准偏移量
+            raw_data = self.imu_device.read_data(apply_calibration=False)
+            if not raw_data or 'head_pose' not in raw_data:
+                return {'status': 'error', 'error': '无法读取IMU原始数据'}
             
-            for i in range(sample_count):
-                try:
-                    # 读取原始数据（不应用校准）
-                    raw_data = self.imu_device.read_data(apply_calibration=False)
-                    if raw_data and 'head_pose' in raw_data:
-                        calibration_samples.append(raw_data['head_pose'])
-                    time.sleep(0.02)  # 20ms间隔
-                except Exception as e:
-                    self.logger.warning(f'校准样本采集失败: {e}')
-                    continue
-                    
-            if len(calibration_samples) < sample_count * 0.7:
-                return {
-                    'status': 'error', 
-                    'error': f'校准样本不足: {len(calibration_samples)}/{sample_count}'
-                }
-                
-            # 计算平均值作为零点偏移
-            rotation_sum = sum(sample['rotation'] for sample in calibration_samples)
-            tilt_sum = sum(sample['tilt'] for sample in calibration_samples)
-            pitch_sum = sum(sample['pitch'] for sample in calibration_samples)
-            
-            count = len(calibration_samples)
+            # 使用当前姿态作为零点偏移
             self.head_pose_offset = {
-                'rotation': rotation_sum / count,
-                'tilt': tilt_sum / count,
-                'pitch': pitch_sum / count
+                'rotation': raw_data['head_pose']['rotation'],
+                'tilt': raw_data['head_pose']['tilt'],
+                'pitch': raw_data['head_pose']['pitch']
             }
             
             # 应用校准到设备
@@ -396,8 +373,7 @@ class IMUManager(BaseDevice):
             self.logger.info(f'IMU快速校准完成: {self.head_pose_offset}')
             return {
                 'status': 'success',
-                'head_pose_offset': self.head_pose_offset,
-                'samples_used': count
+                'head_pose_offset': self.head_pose_offset
             }
             
         except Exception as e:
@@ -504,8 +480,8 @@ class IMUManager(BaseDevice):
                     
                     if data:
                         # 缓存数据
-                        self.data_buffer.append(data)
-                        self.last_valid_data = data
+                        # self.data_buffer.append(data)
+                        # self.last_valid_data = data
                         
                         # 发送数据到前端
                         if self._socketio:
diff --git a/backend/devices/screen_recorder.py b/backend/devices/screen_recorder.py
index 176ba69c..e53a4a4e 100644
--- a/backend/devices/screen_recorder.py
+++ b/backend/devices/screen_recorder.py
@@ -173,14 +173,17 @@ class RecordingManager:
             # 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
             # print('屏幕写入器的宽高..............',record_size)
-            self.screen_video_writer = cv2.VideoWriter(
-                screen_video_path, fourcc, fps, (self.screen_size[0],self.screen_size[1])
-            )
+            # self.screen_video_writer = cv2.VideoWriter(
+            #     screen_video_path, fourcc, fps, (self.screen_size[0],self.screen_size[1])
+            # )
             
-            if self.screen_video_writer.isOpened():
+            # 检查屏幕视频写入器状态（仅在初始化时）
+            if self.screen_video_writer and 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:
+            elif self.screen_video_writer:
                 self.logger.error(f'屏幕视频写入器初始化失败: {screen_video_path}')
+            else:
+                self.logger.info('屏幕录制功能暂时禁用')
             
             # 重置停止事件
             self.recording_stop_event.clear()
@@ -195,13 +198,13 @@ class RecordingManager:
                 )
                 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()
+            # 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()
diff --git a/backend/devices/utils/config.ini b/backend/devices/utils/config.ini
index 5cf905ba..215581bd 100644
--- a/backend/devices/utils/config.ini
+++ b/backend/devices/utils/config.ini
@@ -29,7 +29,7 @@ depth_range_max = 1700
 
 [DEVICES]
 imu_device_type = real
-imu_port = COM3
+imu_port = COM8
 imu_baudrate = 9600
 pressure_device_type = real
 pressure_use_mock = False
diff --git a/backend/main.py b/backend/main.py
index 7fcbf172..e7ab525b 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -947,7 +947,7 @@ class AppServer:
                 self.logger.error(f'校准设备失败: {e}')
                 return jsonify({'success': False, 'error': str(e)}), 500
         
-        @self.app.route('/api/devices/imu/calibrate', methods=['POST'])
+        @self.app.route('/api/devices/calibrate/imu', methods=['POST'])
         def calibrate_imu():
             """校准IMU"""
             try:
diff --git a/backend/tests/test111.py b/backend/tests/test111.py
index 4680a9b1..cdb324bb 100644
--- a/backend/tests/test111.py
+++ b/backend/tests/test111.py
@@ -1,79 +1,53 @@
-import ctypes
-import time
-import numpy as np
+from PIL import Image
+import colorsys
 
-# === DLL 加载 ===
-dll = ctypes.WinDLL(r"D:\BodyBalanceEvaluation\backend\dll\smitsense\SMiTSenseUsbWrapper.dll")
+def get_unique_colors(image_path):
+    img = Image.open(image_path).convert("RGB")
+    unique_colors = list(set(img.getdata()))
+    return unique_colors
 
-# === DLL 函数声明 ===
-dll.SMiTSenseUsb_Init.argtypes = [ctypes.c_int]
-dll.SMiTSenseUsb_Init.restype = ctypes.c_int
+def get_representative_colors(colors, n=12):
+    # 按亮度排序并均匀抽取
+    def brightness(rgb):
+        r, g, b = rgb
+        return 0.2126*r + 0.7152*g + 0.0722*b
+    
+    colors.sort(key=brightness)
+    total = len(colors)
+    if total <= n:
+        return colors
+    step = total / n
+    return [colors[int(i*step)] for i in range(n)]
 
-dll.SMiTSenseUsb_ScanDevices.argtypes = [ctypes.POINTER(ctypes.c_int)]
-dll.SMiTSenseUsb_ScanDevices.restype = ctypes.c_int
+def sort_colors_by_hue(colors):
+    # 转为 HSV，并按色相排序
+    def rgb_to_hue(rgb):
+        r, g, b = [x/255.0 for x in rgb]
+        h, s, v = colorsys.rgb_to_hsv(r, g, b)
+        return h
+    return sorted(colors, key=rgb_to_hue)
 
-dll.SMiTSenseUsb_OpenAndStart.argtypes = [
-    ctypes.c_int,
-    ctypes.POINTER(ctypes.c_uint16),
-    ctypes.POINTER(ctypes.c_uint16)
-]
-dll.SMiTSenseUsb_OpenAndStart.restype = ctypes.c_int
+def show_color_preview(colors, width=600, height_per_color=50):
+    n = len(colors)
+    height = n * height_per_color
+    img = Image.new("RGB", (width, height))
+    
+    for i, color in enumerate(colors):
+        for y in range(i*height_per_color, (i+1)*height_per_color):
+            for x in range(width):
+                img.putpixel((x, y), color)
+    
+    img.show()
 
-dll.SMiTSenseUsb_GetLatestFrame.argtypes = [
-    ctypes.POINTER(ctypes.c_uint16),
-    ctypes.c_int
-]
-dll.SMiTSenseUsb_GetLatestFrame.restype = ctypes.c_int
-
-dll.SMiTSenseUsb_StopAndClose.argtypes = []
-dll.SMiTSenseUsb_StopAndClose.restype = ctypes.c_int
-
-# === 初始化设备 ===
-ret = dll.SMiTSenseUsb_Init(0)
-if ret != 0:
-    raise RuntimeError(f"Init failed: {ret}")
-
-count = ctypes.c_int()
-ret = dll.SMiTSenseUsb_ScanDevices(ctypes.byref(count))
-if ret != 0 or count.value == 0:
-    raise RuntimeError("No devices found")
-
-# 打开设备
-rows = ctypes.c_uint16()
-cols = ctypes.c_uint16()
-ret = dll.SMiTSenseUsb_OpenAndStart(0, ctypes.byref(rows), ctypes.byref(cols))
-if ret != 0:
-    raise RuntimeError("OpenAndStart failed")
-
-rows_val, cols_val = rows.value, cols.value
-frame_size = rows_val * cols_val
-buf_type = ctypes.c_uint16 * frame_size
-buf = buf_type()
-
-# 创建一个 NumPy 数组视图，复用内存
-data_array = np.ctypeslib.as_array(buf).reshape((rows_val, cols_val))
-
-print(f"设备已打开: {rows_val}x{cols_val}")
-
-try:
-    while True:
-       ret = dll.SMiTSenseUsb_GetLatestFrame(buf, frame_size)
-       time.sleep(1)
-    # while True:
-    #     ret = dll.SMiTSenseUsb_GetLatestFrame(buf, frame_size)
-    #     if ret == 0:
-    #         # data_array 已经复用缓冲区内存，每次直接访问即可
-    #         # 例如打印最大值和前5行前5列的数据
-    #         print("最大压力值:", data_array.max())
-    #         print("前5x5数据:\n", data_array[:5, :5])
-    #     else:
-    #         print("读取数据帧失败")
-
-    #     time.sleep(1)  # 每秒读取一帧
-
-except KeyboardInterrupt:
-    print("退出中...")
-
-finally:
-    dll.SMiTSenseUsb_StopAndClose()
-    print("设备已关闭")
+if __name__ == "__main__":
+    image_path = r"D:\项目资料\技术文档资料\中康项目资料\11.png"
+    
+    colors = get_unique_colors(image_path)
+    rep_colors = get_representative_colors(colors, 12)
+    sorted_colors = sort_colors_by_hue(rep_colors)
+    
+    print("12 个代表性颜色（按彩虹顺序）：")
+    for i, color in enumerate(sorted_colors, 1):
+        print(f"{i}: {color}")
+    
+    show_color_preview(sorted_colors)
diff --git a/backend/tests/test1imu10a.py b/backend/tests/test1imu10a.py
index 231c172b..c316509d 100644
--- a/backend/tests/test1imu10a.py
+++ b/backend/tests/test1imu10a.py
@@ -59,7 +59,7 @@ def parse_packet(data):
     # else:
     #     return f"未知包类型: {packet_type:#04x}"
 
-def read_imu(port='COM6', baudrate=9600):
+def read_imu(port='COM8', baudrate=9600):
     ser = serial.Serial(port, baudrate, timeout=1)
     buffer = bytearray()
 
diff --git a/backend/tests/test44femtobolt.py b/backend/tests/test44femtobolt.py
new file mode 100644
index 00000000..af8b7b91
--- /dev/null
+++ b/backend/tests/test44femtobolt.py
@@ -0,0 +1,94 @@
+import os
+import numpy as np
+import matplotlib.pyplot as plt
+from matplotlib.colors import ListedColormap
+import pykinect_azure as pykinect
+
+
+class FemtoBoltContourViewer:
+    def __init__(self, depth_min=900, depth_max=1100):
+        self.depth_min = depth_min
+        self.depth_max = depth_max
+
+        # 自定义离散彩虹色，层次明显
+        colors = [
+            'darkblue', 'blue', 'cyan', 'lime', 'yellow',
+            'orange', 'red', 'darkred'
+        ]
+        self.cmap = ListedColormap(colors)
+
+        self.device_handle = None
+        self.pykinect = None
+        self.config = None
+
+    def _load_sdk(self):
+        """加载并初始化 FemtoBolt SDK"""
+        base_dir = os.path.dirname(os.path.abspath(__file__))
+        dll_path = os.path.join(base_dir, "..", "dll", "femtobolt", "bin", "k4a.dll")
+        self.pykinect = pykinect
+        self.pykinect.initialize_libraries(track_body=False, module_k4a_path=dll_path)
+
+    def _configure_device(self):
+        """配置 FemtoBolt 深度相机"""
+        self.config = self.pykinect.default_configuration
+        self.config.depth_mode = self.pykinect.K4A_DEPTH_MODE_NFOV_UNBINNED
+        self.config.camera_fps = self.pykinect.K4A_FRAMES_PER_SECOND_15
+        self.config.synchronized_images_only = False
+        self.config.color_resolution = 0
+        self.device_handle = self.pykinect.start_device(config=self.config)
+
+    def run(self):
+        self._load_sdk()
+        self._configure_device()
+
+        plt.ion()  # 打开交互模式
+        fig, ax = plt.subplots(figsize=(7, 7))
+        print("FemtoBolt 深度相机启动成功，关闭窗口或 Ctrl+C 退出")
+
+        # 设置离散等高线层次
+        levels = np.linspace(self.depth_min, self.depth_max, len(self.cmap.colors) + 1)
+
+        try:
+            while plt.fignum_exists(fig.number):  # 窗口存在才继续
+                capture = self.device_handle.update()
+                if capture is None:
+                    continue
+                ret, depth_image = capture.get_depth_image()
+                if not ret or depth_image is None:
+                    continue
+
+                depth = depth_image.astype(np.uint16)
+                # 限制深度范围
+                depth[depth > self.depth_max] = 0
+                depth[depth < self.depth_min] = 0
+                depth = depth[0:350, 0:350]
+
+                # 屏蔽无效值
+                depth_masked = np.ma.masked_equal(depth, 0)
+
+                # 背景灰色
+                background = np.ones_like(depth) * 0.5
+
+                # 绘制
+                ax.clear()
+                ax.imshow(background, origin='lower', cmap='gray', alpha=0.3)
+                ax.grid(True, which='both', axis='both', color='white',
+                        linestyle='--', linewidth=1, zorder=0)
+                ax.contourf(depth_masked, levels=levels, cmap=self.cmap,
+                            vmin=self.depth_min, vmax=self.depth_max,
+                            origin='upper', zorder=2)
+
+                plt.pause(0.05)
+
+        except KeyboardInterrupt:
+            print("检测到退出信号，结束程序")
+        finally:
+            if self.device_handle:
+                self.device_handle.stop()
+                self.device_handle.close()
+            plt.close(fig)
+
+
+if __name__ == "__main__":
+    viewer = FemtoBoltContourViewer(depth_min=900, depth_max=1100)
+    viewer.run()