diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index a15c713..8b0e00b 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -90,9 +90,10 @@ public partial class MainWindow : Window
         if (!isDetecting)
         {
             // 开始检测
+            // 清空之前图表数据
+            chartManager.ClearAllCharts();
             sensorManager.Start();
             //chartManager.Start(); // 启动图表刷新
-            //chartManager.Clear();
             BtnSensorControl.Content = "检测确定";
             isDetecting = true;
         }