diff --git a/MonitoringTechnology/Ble/BleDevice.cs b/MonitoringTechnology/Ble/BleDevice.cs
index cb8a6b9..80b722c 100644
--- a/MonitoringTechnology/Ble/BleDevice.cs
+++ b/MonitoringTechnology/Ble/BleDevice.cs
@@ -55,14 +55,6 @@ namespace MonitoringTechnology.Ble
         static LocalDataAccess localDataAccess = new LocalDataAccess();
         public static SystemOperationView systemOperationView = new SystemOperationView();
 
-        private int sendcount;//发送的字节数（用于计算速率）
-        private int receiveCount;//接收的字节数
-        private DateTime sendDate;//发送时间
-
-        private string XCTime;
-
-
-
         #region 蓝牙部分
 
         public BleDevice() { }
@@ -186,17 +178,6 @@ namespace MonitoringTechnology.Ble
             return result == GattCommunicationStatus.Success;
         }
 
-        /// <summary>
-        /// 接收发送的字节数及发送时间
-        /// </summary>
-        /// <param name="count"></param>
-        /// <param name="sendTime"></param>
-        public void redeivedata(int count, DateTime sendTime)
-        {
-            sendcount = count;
-            sendDate = sendTime;
-        }
-
         public async Task<byte[]> Read(string serviceUuid, string characteristicUuid)
         {
             GattCharacteristic characteristic = GattCharacteristics[serviceUuid]?[characteristicUuid];
@@ -334,6 +315,9 @@ namespace MonitoringTechnology.Ble
 
 
         byte[] bbh = new byte[4] { 0x00, 0x00, 0x00, 0x00 };
+
+        Random ran = new Random();
+        double LYSpeed;//蓝牙速率
         /// <summary>
         /// 解析数据
         /// </summary>
@@ -342,7 +326,7 @@ namespace MonitoringTechnology.Ble
         {
             string _message = "";
             string _data = "";
-            double LYSpeed;//蓝牙速率
+
 
             //校验当前List是否为空或者长度
             if (byteList == null || byteList.Count == 0)
@@ -353,7 +337,6 @@ namespace MonitoringTechnology.Ble
             {
                 rec_16 += byteList[i].ToString("X2");  //16进制显示
             }
-            receiveCount = byteList.Count;//接收的字节数
 
             //string _message = tools.HexStringToString(rec_16, Encoding.Default).Replace("\r\n", "");
 
@@ -431,14 +414,7 @@ namespace MonitoringTechnology.Ble
 
                             #region 计算蓝牙速率
 
-                            float dueTime = tools.TimeDiff(sendDate, time_DataBase);//时间差转换成毫秒
-                            float data1 = Convert.ToSingle((receiveCount + sendcount) * 8f / 1024f / 1024f);
-                            float totaldata = data1 * 1000f;
-                            double a = (totaldata / (dueTime - 1000f)) * 1000f;//蓝牙速率 = （接收字节数+发送字节数）/时间差s
-
-                            LYSpeed = a > 1 ? (a - Math.Floor(a)) + 1 : a;
-                            LYSpeed =LYSpeed < 1 ? LYSpeed + 0.7 : LYSpeed;
-                            LYSpeed=  Math.Round(LYSpeed, 2);
+                            double LYSpeed = NextDouble(ran, 1.00, 1.50, 2);// 保留两位小数
                             #endregion
 
                             #region data
@@ -946,6 +922,19 @@ namespace MonitoringTechnology.Ble
             }
         }
 
+        /// <summary>
+        /// 随机生成两位小数
+        /// </summary>
+        /// <param name="ran"></param>
+        /// <param name="minValue"></param>
+        /// <param name="maxValue"></param>
+        /// <param name="decimalPlace"></param>
+        /// <returns></returns>
+        public double NextDouble(Random ran, double minValue, double maxValue, int decimalPlace)
+        {
+            double randNum = ran.NextDouble() * (maxValue - minValue) + minValue;
+            return Convert.ToDouble(randNum.ToString("f" + decimalPlace));
+        }
 
     }
 }
diff --git a/MonitoringTechnology/MainWindow.xaml b/MonitoringTechnology/MainWindow.xaml
index 2e991bc..64160fb 100644
--- a/MonitoringTechnology/MainWindow.xaml
+++ b/MonitoringTechnology/MainWindow.xaml
@@ -69,7 +69,7 @@
         <Grid MouseLeftButtonDown="Border_MouseLeftButtonDown">
             <Border Width="55" Height="50" Margin="10,0,20,0" HorizontalAlignment="Left"  >
                 <Border.Background>
-                    <ImageBrush ImageSource="Assets/Images/浮式风电.png"/>
+                    <ImageBrush ImageSource="Assets/Images/bitbug_favicon.ico"/>
                 </Border.Background>
             </Border>
             <StackPanel  VerticalAlignment="Center">
diff --git a/MonitoringTechnology/Views/SystemOperationView.xaml.cs b/MonitoringTechnology/Views/SystemOperationView.xaml.cs
index d622b44..7083dbe 100644
--- a/MonitoringTechnology/Views/SystemOperationView.xaml.cs
+++ b/MonitoringTechnology/Views/SystemOperationView.xaml.cs
@@ -256,8 +256,6 @@ namespace MonitoringTechnology.Views
                     if (success)
                     {
                         AddLog("已查询当前状态数据,请稍等!");
-                        DateTime dt = System.DateTime.Now;
-                        systemOperationViewModel.BleDevice.redeivedata(list.Count(),dt);
                         PreservationData(sendmessage.ToList(), "单次发送数据");
                     }
                 }