diff --git a/Correlator/Util/SerialPortManager.cs b/Correlator/Util/SerialPortManager.cs
index 1a8d528..4fde315 100644
--- a/Correlator/Util/SerialPortManager.cs
+++ b/Correlator/Util/SerialPortManager.cs
@@ -7,6 +7,7 @@
 using System.Text;
 using System.Threading;
 using System.Windows;
+using System.Windows.Threading;
 using Correlator.Model;
 using Correlator.SensorHubTag;
 using GalaSoft.MvvmLight.Messaging;
@@ -58,12 +59,23 @@
                     FlowStatus.RedSensorTagLists.Clear();
                     FlowStatus.BlueSensorTagLists.Clear();
 
-                    //开始计算
+                    //延迟5s开始计算
+                    _runningTimer.Start();
+                }
+            });
+
+            _runningTimer.Tick += delegate
+            {
+                _runningSeconds++;
+                if (_runningSeconds >= 5)
+                {
+                    _runningTimer.Stop();
                     Messenger.Default.Send(_dataModel, MessengerToken.HomePageDeviceData);
+
                     //重新定义dataModel，清空之前的缓存
                     _dataModel = new CorrelatorDataModel();
                 }
-            });
+            };
         }
 
         #endregion
@@ -73,6 +85,15 @@
         //左右传感器设备数据
         private CorrelatorDataModel _dataModel = new CorrelatorDataModel();
 
+        //计算时间
+        private int _runningSeconds;
+
+        //计时器
+        private readonly DispatcherTimer _runningTimer = new DispatcherTimer
+        {
+            Interval = TimeSpan.FromSeconds(1)
+        };
+
         /// <summary>
         /// 数据监听委托解注册
         /// </summary>

diff --git a/Correlator/Util/SerialPortManager.cs b/Correlator/Util/SerialPortManager.cs
index 1a8d528..4fde315 100644
--- a/Correlator/Util/SerialPortManager.cs
+++ b/Correlator/Util/SerialPortManager.cs
@@ -7,6 +7,7 @@
 using System.Text;
 using System.Threading;
 using System.Windows;
+using System.Windows.Threading;
 using Correlator.Model;
 using Correlator.SensorHubTag;
 using GalaSoft.MvvmLight.Messaging;
@@ -58,12 +59,23 @@
                     FlowStatus.RedSensorTagLists.Clear();
                     FlowStatus.BlueSensorTagLists.Clear();
 
-                    //开始计算
+                    //延迟5s开始计算
+                    _runningTimer.Start();
+                }
+            });
+
+            _runningTimer.Tick += delegate
+            {
+                _runningSeconds++;
+                if (_runningSeconds >= 5)
+                {
+                    _runningTimer.Stop();
                     Messenger.Default.Send(_dataModel, MessengerToken.HomePageDeviceData);
+
                     //重新定义dataModel，清空之前的缓存
                     _dataModel = new CorrelatorDataModel();
                 }
-            });
+            };
         }
 
         #endregion
@@ -73,6 +85,15 @@
         //左右传感器设备数据
         private CorrelatorDataModel _dataModel = new CorrelatorDataModel();
 
+        //计算时间
+        private int _runningSeconds;
+
+        //计时器
+        private readonly DispatcherTimer _runningTimer = new DispatcherTimer
+        {
+            Interval = TimeSpan.FromSeconds(1)
+        };
+
         /// <summary>
         /// 数据监听委托解注册
         /// </summary>
diff --git a/Correlator/ViewModel/HomePageProViewModel.cs b/Correlator/ViewModel/HomePageProViewModel.cs
index 697a565..f6db7c0 100644
--- a/Correlator/ViewModel/HomePageProViewModel.cs
+++ b/Correlator/ViewModel/HomePageProViewModel.cs
@@ -523,15 +523,19 @@
                     //计算
                     try
                     {
+                        //异步保存定位数据
+                        new TaskFactory().StartNew(delegate
+                        {
+                            var fileName = _locateDataDir + "\\测试数据." + _locateTimes + "."
+                                           + DateTime.Now.ToString("HHmmss") + ".txt";
+                            StringUtil.SaveLocateData(it, fileName);
+                            "HomePageViewModel".WriteLog("定位数据路径：" + fileName);
+                        });
+
+                        //异步计算数据
                         var task = new Task<bool>(() => CalculateData(it));
                         task.Start();
 
-                        //异步保存定位数据
-                        var fileName = _locateDataDir + "\\测试数据." + _locateTimes + "."
-                                       + DateTime.Now.ToString("HHmmss") + ".txt";
-                        StringUtil.SaveLocateData(it, fileName);
-                        "HomePageViewModel".WriteLog("定位数据路径：" + fileName);
-
                         //同步保存截图，需要等待Task出结果并且渲染完成，才能保存截图
                         _snapShotPath = _locateDataDir + "\\快照." + _locateTimes + "." +
                                         DateTime.Now.ToString("HHmmss") + ".png";