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 27f29308..a0683be6 100644
--- a/sec-beidou/src/main/resources/templates/page/device_overview.html
+++ b/sec-beidou/src/main/resources/templates/page/device_overview.html
@@ -33,7 +33,7 @@
 <div class="layuimini-main">
 
     <div class="layui-row layui-col-space30">
-        <div class="layui-col-md6">
+        <div class="layui-col-xs12 layui-col-md6">
             <div class="layui-card top-panel">
                 <div class="layui-card-header">设备数量</div>
                 <div class="layui-card-body">
@@ -49,7 +49,7 @@
                 </div>
             </div>
         </div>
-        <div class="layui-col-md6">
+        <div class="layui-col-xs12 layui-col-md6">
             <div class="layui-card top-panel">
                 <div class="layui-card-header">告警统计</div>
                 <div class="layui-card-body">
@@ -80,8 +80,10 @@
     function initialize() {
         var map = new BMapGL.Map("map-container");            // 创建Map实例
         var point = new BMapGL.Point(116.404, 39.915);
-        map.centerAndZoom(point, 6);
+        map.centerAndZoom(point, 7);
         map.enableScrollWheelZoom(true);
+        var centerLat = 0;
+        var centerLon = 0;
         var deviceList=
             [
                 [# th:each="device : ${deviceList}"]
@@ -91,12 +93,15 @@
                     [/]
             ];
         //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));
+        for(var i=0; i<deviceList.length; i++) {
+            centerLat += deviceList[i].latitude;
+            centerLon += deviceList[i].longitude;
+        }
+        if(deviceList.length>0) {
+            centerLat = centerLat/deviceList.length;
+            centerLon = centerLon/deviceList.length;
+            map.setCenter(new BMapGL.Point(centerLon,centerLat));
         }
-        if(i>0) map.setCenter(point);*/
 
         translateCallback = function (data){
             if(data.status === 0) {
@@ -104,7 +109,6 @@
                 for(; i<data.points.length; i++) {
                     map.addOverlay(new BMapGL.Marker(data.points[i]));
                 }
-                if(i>0) map.setCenter(data.points[i-1]);
             }
         }