diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/Gga.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/Gga.java
index 838c1124..a0d5b09c 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/Gga.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/Gga.java
@@ -119,8 +119,8 @@ public class Gga {
             if(params.length == 11){
                 Gga gga = new Gga();
                 try {
-                    gga.setLatitude(Double.parseDouble(params[2]));
-                    gga.setLongitude(Double.parseDouble(params[4]));
+                    gga.setLatitude(transGGAPos(Double.parseDouble(params[2])));
+                    gga.setLongitude(transGGAPos(Double.parseDouble(params[4])));
                     gga.setAltitude(Double.parseDouble(params[9]));
                     gga.setQuality(Integer.parseInt(params[6]));
                     gga.setSatellitesInUsed(Integer.parseInt(params[7]));
@@ -135,6 +135,11 @@ public class Gga {
         return null;
     }
 
+    static double transGGAPos(double pos){
+        int degree = (int) (pos/100);
+        return degree + (pos-degree*100)/60;
+    }
+
     public Gga(double latitude, double longitude) {
         this.latitude = latitude;
         this.longitude = longitude;
diff --git a/sec-beidou/src/main/resources/templates/page/device_overview.html b/sec-beidou/src/main/resources/templates/page/device_overview.html
index 7af84ae0..22979d17 100644
--- a/sec-beidou/src/main/resources/templates/page/device_overview.html
+++ b/sec-beidou/src/main/resources/templates/page/device_overview.html
@@ -86,11 +86,17 @@
             [
                 [# th:each="device : ${deviceList}"]
                     {deviceid:[[${device.deviceid}]],
-                        latitude:[[${device.latitude}]]/100,
-                        longitude:[[${device.longitude}]]/100},
+                        latitude:[[${device.latitude}]],
+                        longitude:[[${device.longitude}]]},
                     [/]
             ];
         //console.log(deviceList);
+        /*var i=0;
+        for(; i<deviceList.length; i++) {
+            point = new BMapGL.Point(deviceList[i].longitude, deviceList[i].latitude);
+            map.addOverlay(new BMapGL.Marker(point));
+        }
+        if(i>0) map.setCenter(point);*/
 
         translateCallback = function (data){
             if(data.status === 0) {