diff --git a/Correlator/Util/MethodExtensions.cs b/Correlator/Util/MethodExtensions.cs
index b119014..07ccf2b 100644
--- a/Correlator/Util/MethodExtensions.cs
+++ b/Correlator/Util/MethodExtensions.cs
@@ -176,5 +176,35 @@
         {
             return tags.Where(tag => tag is SensorExceptionTag).Cast<SensorExceptionTag>().FirstOrDefault();
         }
+        
+        public static double HexToDouble(this IReadOnlyList<byte> src)
+        {
+            if (src.Count != 3)
+                return 0;
+
+            short result1 = src[0];
+            short result2 = src[1];
+            short result3 = src[2];
+
+            if ((result1 & 0x80) == 0x80)
+            {
+                result1 = Convert.ToInt16(result1 - 255);
+                result2 = Convert.ToInt16(result2 - 255);
+                result3 = Convert.ToInt16(result3 - 255);
+            }
+
+            var data = (result1 * 65536 + result2 * 256 + result3) * 5 / 83.88607 / 100000;
+            return data;
+        }
+        
+        /// <summary>
+        /// 上报的噪声
+        /// </summary>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        public static UploadTag GetUploadNoiseTag(this IEnumerable<Tag> tags)
+        {
+            return tags.Where(tag => tag is UploadTag).Cast<UploadTag>().FirstOrDefault();
+        }
     }
 }
\ No newline at end of file

diff --git a/Correlator/Util/MethodExtensions.cs b/Correlator/Util/MethodExtensions.cs
index b119014..07ccf2b 100644
--- a/Correlator/Util/MethodExtensions.cs
+++ b/Correlator/Util/MethodExtensions.cs
@@ -176,5 +176,35 @@
         {
             return tags.Where(tag => tag is SensorExceptionTag).Cast<SensorExceptionTag>().FirstOrDefault();
         }
+        
+        public static double HexToDouble(this IReadOnlyList<byte> src)
+        {
+            if (src.Count != 3)
+                return 0;
+
+            short result1 = src[0];
+            short result2 = src[1];
+            short result3 = src[2];
+
+            if ((result1 & 0x80) == 0x80)
+            {
+                result1 = Convert.ToInt16(result1 - 255);
+                result2 = Convert.ToInt16(result2 - 255);
+                result3 = Convert.ToInt16(result3 - 255);
+            }
+
+            var data = (result1 * 65536 + result2 * 256 + result3) * 5 / 83.88607 / 100000;
+            return data;
+        }
+        
+        /// <summary>
+        /// 上报的噪声
+        /// </summary>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        public static UploadTag GetUploadNoiseTag(this IEnumerable<Tag> tags)
+        {
+            return tags.Where(tag => tag is UploadTag).Cast<UploadTag>().FirstOrDefault();
+        }
     }
 }
\ No newline at end of file
diff --git a/Correlator/Util/SerialPortManager.cs b/Correlator/Util/SerialPortManager.cs
index 2b18dd9..ad2e6b9 100644
--- a/Correlator/Util/SerialPortManager.cs
+++ b/Correlator/Util/SerialPortManager.cs
@@ -202,7 +202,7 @@
             var clobData = new double[3750]; //3750个采样点
 
             //处理接到的噪声数据
-            var noiseTag = GetUploadNoiseTag(tags);
+            var noiseTag = tags.GetUploadNoiseTag();
             if (noiseTag != null)
             {
                 var len = noiseTag.Len;
@@ -214,7 +214,7 @@
                     var dStr = new byte[3];
                     Array.Copy(dataValue, i * 3, dStr, 0, 3);
 
-                    clobData[i] = StrHexToDouble(dStr);
+                    clobData[i] = dStr.HexToDouble();
                 }
 
                 _dataModel.DevCode = devCode;
@@ -256,7 +256,7 @@
         private static void HandleListenData(List<Tag> tags)
         {
             //处理接到的噪声数据
-            var noiseTag = GetUploadNoiseTag(tags);
+            var noiseTag = tags.GetUploadNoiseTag();
             if (noiseTag != null)
             {
                 var dataValue = noiseTag.DataValue;
@@ -313,36 +313,6 @@
             }
         }
 
-        private static double StrHexToDouble(byte[] src)
-        {
-            if (src.Length != 3)
-                return 0;
-
-            short result1 = src[0];
-            short result2 = src[1];
-            short result3 = src[2];
-
-            if ((result1 & 0x80) == 0x80)
-            {
-                result1 = Convert.ToInt16(result1 - 255);
-                result2 = Convert.ToInt16(result2 - 255);
-                result3 = Convert.ToInt16(result3 - 255);
-            }
-
-            var data = (result1 * 65536 + result2 * 256 + result3) * 5 / 83.88607 / 100000;
-            return data;
-        }
-
-        /// <summary>
-        /// 上报的噪声
-        /// </summary>
-        /// <param name="tags"></param>
-        /// <returns></returns>
-        private static UploadTag GetUploadNoiseTag(IEnumerable<Tag> tags)
-        {
-            return tags.Where(tag => tag is UploadTag).Cast<UploadTag>().FirstOrDefault();
-        }
-
         /// <summary>
         /// 获取设备信号
         /// </summary>