diff --git a/AIParkingApplication/StatusBar.cs b/AIParkingApplication/StatusBar.cs
index dee0d3f..b0d69b7 100644
--- a/AIParkingApplication/StatusBar.cs
+++ b/AIParkingApplication/StatusBar.cs
@@ -1,19 +1,22 @@
 using System;
 using System.Drawing;
-using System.Windows.Forms;
 using System.Threading;
+using System.Windows.Forms;
 
 namespace AIParkingApplication
 {
     public partial class StatusBar : UserControl
     {
         private string webServerIP;
-        private string c3IP;
-        public StatusBar(string webServerIP, string c3IP)
+        private string doorAccessControlDeviceIP;
+        private TimeSpan updateInterval;
+
+        public StatusBar(string webServerIP, string doorAccessControlDeviceIP, TimeSpan updateInterval)
         {
             InitializeComponent();
             this.webServerIP = webServerIP;
-            this.c3IP = c3IP;
+            this.doorAccessControlDeviceIP = doorAccessControlDeviceIP;
+            this.updateInterval = updateInterval;
             Thread thrStatus = new Thread(new ThreadStart(UpdateStatus));
             thrStatus.IsBackground = true;
             thrStatus.Start();
@@ -25,37 +28,25 @@ namespace AIParkingApplication
             {
                 if (IsHandleCreated)
                 {
-                    lblDateTime.Invoke(new Action(() =>
-                    {
-                        lblDateTime.Text = DateTime.Now.ToString(AppConstant.DATETIME_FORMAT);
-                    }));
+                    lblDateTime.UpdateLabel(DateTime.Now.ToString(AppConstant.DATETIME_FORMAT));
 
-                    lblPingTimeC3.Invoke(new Action(() =>
-                    {
-                        PingResult pingResult = GetPingStatus(c3IP);
-                        lblPingTimeC3.Text = $"{pingResult.ReplyTime} ms";
-                        lblPingTimeC3.BackColor = pingResult.BackColor;
-                        lblPingTimeC3.ForeColor = pingResult.ForceColor;
-                    }));
+                    PingResult pingDoorAccessControlResult = GetPingStatus(doorAccessControlDeviceIP);
+                    lblPingTimeC3.UpdateLabel($"{pingDoorAccessControlResult.ReplyTime} ms", pingDoorAccessControlResult.BackColor, pingDoorAccessControlResult.ForeColor);
 
-                    lblPingTimeServer.Invoke(new Action(() =>
-                    {
-                        PingResult pingResult = GetPingStatus(webServerIP);
-                        lblPingTimeServer.Text = $"{pingResult.ReplyTime} ms";
-                        lblPingTimeServer.BackColor = pingResult.BackColor;
-                        lblPingTimeServer.ForeColor = pingResult.ForceColor;
-                    }));
+                    PingResult pingWebServerResult = GetPingStatus(webServerIP);
+                    lblPingTimeServer.UpdateLabel($"{pingWebServerResult.ReplyTime} ms", pingWebServerResult.BackColor, pingWebServerResult.ForeColor);
                 }
-                Thread.Sleep(1000);
+                Thread.Sleep(updateInterval);
             }
         }
 
-        private PingResult GetPingStatus(string ip)
+        private PingResult GetPingStatus(string ipAddress)
         {
             PingResult pingResult = new PingResult();
             bool isPingable;
-            isPingable = Util.IsPingable(ip, out long replyTime);
+            isPingable = Util.IsPingable(ipAddress, out long replyTime);
             if (isPingable)
+            {
                 switch (replyTime)
                 {
                     case long n when (n >= 0 && n < 1):
@@ -71,6 +62,7 @@ namespace AIParkingApplication
                         pingResult.BackColor = Color.Red;
                         break;
                 }
+            }
             else
             {
                 pingResult.ReplyTime = 0;
@@ -83,7 +75,7 @@ namespace AIParkingApplication
         {
             public long ReplyTime { get; set; }
             public Color BackColor { get; set; }
-            public Color ForceColor { get; set; }
+            public Color ForeColor { get; set; }
         }
     }
 }
diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index 7164152..ef6feee 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -86,12 +86,22 @@ namespace AIParkingApplication
             }));
         }
 
-        public static void UpdateLabel(this Label label, string text, Color color)
+        public static void UpdateLabel(this Label label, string text, Color backColor, Color foreColor)
         {
             label.Invoke(new Action(() =>
             {
-                label.BackColor = color;
                 label.Text = text;
+                label.BackColor = backColor;
+                label.ForeColor = foreColor;
+            }));
+        }
+
+        public static void UpdateLabel(this Label label, string text, Color backColor)
+        {
+            label.Invoke(new Action(() =>
+            {
+                label.Text = text;
+                label.BackColor = backColor;
             }));
         }