diff --git a/Backend/Controllers/NiagaraDataSynchronizeController.cs b/Backend/Controllers/NiagaraDataSynchronizeController.cs
index 5687558..17027ae 100644
--- a/Backend/Controllers/NiagaraDataSynchronizeController.cs
+++ b/Backend/Controllers/NiagaraDataSynchronizeController.cs
@@ -40,11 +40,12 @@ namespace Backend.Controllers
             try
             {
                 List<Device_value> ds;
-                string url_slot = "slot:/Arena/H|";
+                string url_slot = "slot:/TPE/B1|";
                 string top100 = " top 100 ";
                 webRequestService svc = new webRequestService();
                 string bql = url_slot + "bql:select " + top100 + " * from control:ControlPoint ";
-                ds = svc.obixQuery("http://60.251.164.125:8080/obix/config/Arena/Program/ObixQuery/query/", bql);
+                //ds = svc.obixQuery("http://192.168.0.136:8080/obix/config/Arena/Program/ObixQuery/query/", bql);
+                ds = svc.obixQuery("http://localhost:8080/obix/config/Program/ObixQuery/query/", bql);
 
                 apiResult.Code = "0000";
                 apiResult.Data = ds;
diff --git a/Backend/Services/Implement/webRequestService.cs b/Backend/Services/Implement/webRequestService.cs
index 57022a0..51bdae0 100644
--- a/Backend/Services/Implement/webRequestService.cs
+++ b/Backend/Services/Implement/webRequestService.cs
@@ -11,6 +11,7 @@ using System.Text;
 using System.Xml.Linq;
 using Repository.BackendRepository.Implement;
 using Repository.BackendRepository;
+using Ubiety.Dns.Core;
 
 namespace Backend.Services.Implement
 {
@@ -24,9 +25,24 @@ namespace Backend.Services.Implement
             String encoded = System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes(username + ":" + password));
             String API_Url = urlString;
 
+
+            HttpWebRequest Postrequest = (HttpWebRequest)WebRequest.Create(API_Url);
+            Postrequest.Method = "POST";
+            Postrequest.Headers.Add("Authorization", "Basic " + encoded);
+            Postrequest.PreAuthenticate = true;
+
+            using (var streamWriter = new StreamWriter(Postrequest.GetRequestStream()))
+            {
+                string json = "<str val='" + bql + "'/>";
+
+                streamWriter.Write(json);
+            }
+            HttpWebResponse response = (HttpWebResponse)Postrequest.GetResponse();
+            var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
+
             XmlDocument xmlDoc = new XmlDocument();
-            //xmlDoc.LoadXml(responseString);
-            xmlDoc.Load("N4v1021.xml");//N4v1021
+            xmlDoc.LoadXml(responseString);
+            //xmlDoc.Load("N4v1021.xml");//N4v1021
 
             //xmlDoc.Save("N4.xml");