diff --git a/sec-beidou/src/main/java/com/imdroid/beidou/config/SchedulingConfig.java b/sec-beidou/src/main/java/com/imdroid/beidou/config/SchedulingConfig.java
index c547f208..660070c8 100644
--- a/sec-beidou/src/main/java/com/imdroid/beidou/config/SchedulingConfig.java
+++ b/sec-beidou/src/main/java/com/imdroid/beidou/config/SchedulingConfig.java
@@ -91,7 +91,7 @@ public class SchedulingConfig {
         for(GnssStatusJoin status : deviceStatuses){
             //如果上次上线到现在超过两个周期，则认为掉线了
             if(cur_time>status.getUpdatetime().getTime()+
-                    group_cycle_map.get(status.getGroup_id())*1000*2){
+                    group_cycle_map.get(status.getGroup_id())*60*1000*2){
                 status.setState(GnssStatus.STATE_OFFLINE);
                 if(status.getWarningcode()==null) status.setWarningcode(0);
                 status.setWarningcode(status.getWarningcode() | WarningCfg.TYPE_DEVICE_OFF_LINE);