diff --git a/src/App.vue b/src/App.vue
index 71c6cc2..94cddcc 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -54,7 +54,7 @@ const showOfflineDialog = (objid: string) => {
 
 connectAlarmReminder(() => {});
 onAlarmReminderOvertime((device) => {
-  const objid = String(device?.objid ?? '');
+  const objid = String(device?.monitorId ?? '');
   if (!objid) {
     return;
   }
diff --git a/src/utils/alarmReminder.js b/src/utils/alarmReminder.js
index b34f693..e44c961 100644
--- a/src/utils/alarmReminder.js
+++ b/src/utils/alarmReminder.js
@@ -1,7 +1,7 @@
 const websocketUrl = 'ws://119.45.202.115:7181/ws';
 const deviceDataTime = {};
 const overtime = 1000 * 60 * 10;
-// const overtime = 1000;
+const intervalTime = 1000 * 30;
 let alarmReminderSocket = null;
 let overtimeTimer = null;
 let overtimeCallback = null;
@@ -34,7 +34,7 @@ const updateDeviceDataTime = (payload) => {
 
   deviceDataTime[monitorId] = {
     objid: String(objid),
-    time: Date.now()
+    time: Date.now() + overtime
   };
 };
 
@@ -53,7 +53,7 @@ const startOvertimeTimer = () => {
     Object.keys(deviceDataTime).forEach((monitorId) => {
       const item = deviceDataTime[monitorId];
 
-      if (!item || now - item.time <= overtime) {
+      if (!item || now <= item.time) {
         return;
       }
 
@@ -61,7 +61,7 @@ const startOvertimeTimer = () => {
         monitorId,
         ...item
       });
-      delete deviceDataTime[monitorId];
+      item.time = now + intervalTime;
     });
   }, 1000);
 };
@@ -116,4 +116,4 @@ export const closeAlarmReminder = () => {
   overtimeCallback = null;
 };
 
-export { websocketUrl, deviceDataTime, overtime };
+export { websocketUrl, deviceDataTime, overtime, intervalTime };