diff --git a/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java b/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
index eec4f39c..dce8061c 100644
--- a/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
+++ b/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
@@ -13,6 +13,8 @@ import org.springframework.web.bind.annotation.ResponseBody;
 import java.text.SimpleDateFormat;
 import java.time.LocalDateTime;
 import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
 
 @Controller
 public class APIController extends BasicController {
@@ -170,12 +172,21 @@ public class APIController extends BasicController {
         GnssDevice device = deviceMapper.queryByDeviceId(deviceId);
         if (device == null) return null;
 
+        Timer timerSyn = new Timer();
+        int delay = 500;
+
         if (!device.getSyn()) {
             GnssGroup gnssGroup = groupMapper.selectById(device.getGroup_id());
             if (gnssGroup != null) {
                 String config = gnssGroup.getConfigCmd(device);
                 if (config != null) {
-                    rtcmClient.config(deviceId, config);
+                    timerSyn.schedule(new TimerTask() {
+                        @Override
+                        public void run() {
+                            rtcmClient.config(deviceId, config);
+                        }
+                    },delay);
+                    delay += 1000;
                     // 保存
                     saveMsg(deviceId, tenantId, 0xd311, config, true);
                 }
@@ -183,7 +194,13 @@ public class APIController extends BasicController {
         }
         List<String> deviceCmds = device.getConfigCmd();
         for(String deviceCmd:deviceCmds){
-            rtcmClient.config(deviceId, deviceCmd);
+            timerSyn.schedule(new TimerTask() {
+                @Override
+                public void run() {
+                    rtcmClient.config(deviceId, deviceCmd);
+                }
+            },delay);
+            delay += 1000;
             // 保存
             saveMsg(deviceId, tenantId, 0xd312, deviceCmd, true);
 
@@ -196,7 +213,13 @@ public class APIController extends BasicController {
         queryWrapper.last("limit 1");
         DeviceCacheCmd cacheCmd = cacheCmdMapper.selectOne(queryWrapper);
         if (cacheCmd != null) {
-            rtcmClient.config(deviceId, cacheCmd.getCmd());
+            timerSyn.schedule(new TimerTask() {
+                @Override
+                public void run() {
+                    rtcmClient.config(deviceId, cacheCmd.getCmd());
+                }
+            },delay);
+            delay += 1000;
             cacheCmd.setSyn(true);
             cacheCmd.setUpdatetime(LocalDateTime.now());
             cacheCmdMapper.updateById(cacheCmd);
@@ -205,7 +228,12 @@ public class APIController extends BasicController {
         }
 
         // 检查iccid
-        checkAndAskICCID(device);
+        timerSyn.schedule(new TimerTask() {
+            @Override
+            public void run() {
+                checkAndAskICCID(device);
+            }
+        },delay);
 
         return null;
     }
diff --git a/sec-beidou/src/main/java/com/imdroid/beidou/controller/GnssDeviceController.java b/sec-beidou/src/main/java/com/imdroid/beidou/controller/GnssDeviceController.java
index 6374c025..72d410e5 100644
--- a/sec-beidou/src/main/java/com/imdroid/beidou/controller/GnssDeviceController.java
+++ b/sec-beidou/src/main/java/com/imdroid/beidou/controller/GnssDeviceController.java
@@ -253,6 +253,7 @@ public class GnssDeviceController extends BasicController{
             device.setUpdateuser(getLoginUser(session));
             device.setUpdatetime(old_device.getUpdatetime());
             device.setSyn(old_device.getSyn());
+            device.setChange_flag(old_device.getChange_flag());
             String diff=ObjUtil.compare(old_device,device);
             if(!diff.isEmpty()) {
                 opLogManager.addLog(getLoginUser(session), getTenantId(session),