diff --git a/src/main/java/com/kimgo/wepush/service/MonitorService.java b/src/main/java/com/kimgo/wepush/service/MonitorService.java
index a7ae337..dedd325 100644
--- a/src/main/java/com/kimgo/wepush/service/MonitorService.java
+++ b/src/main/java/com/kimgo/wepush/service/MonitorService.java
@@ -1,6 +1,7 @@
 package com.kimgo.wepush.service;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.kimgo.wepush.mapper.DeviceInfoDAOMapper;
 import com.kimgo.wepush.model.DeviceInfoDAO;
 import com.kimgo.wepush.model.TextCardMessage;
@@ -9,6 +10,7 @@ import com.kimgo.wepush.response.QyWeChatSendMessageApiResponse;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
@@ -27,21 +29,31 @@ public class MonitorService {
     private final Logger logger = LoggerFactory.getLogger(MonitorService.class);
     @Autowired
     private DeviceInfoDAOMapper deviceInfoDAOMapper;
-    public void monitorOnlineDevices(){
-        List<DeviceInfoDAO> devices = getAllDeviceIds();
-        for (int i = 0; i < devices.size(); i++) {
-            long currentTimeMillis = System.currentTimeMillis();
-            if (currentTimeMillis - devices.get(i).getLastOnlineTime() > devices.get(i).getTimeOutPeriod()){
-                sendNotification(devices.get(i));
+
+    @Scheduled(fixedDelay = 480000)
+    public void monitorOnlineDevices() {
+        List<DeviceInfoDAO> devices = getAllDevices();
+        for (DeviceInfoDAO device : devices) {
+            try {
+                long currentTimeMillis = System.currentTimeMillis();
+                if (currentTimeMillis - device.getLastOnlineTime() > device.getTimeOutPeriod()) {
+                    updateStatus(device, 0); // 设备离线
+                    sendNotification(device);
+                } else {
+                    updateStatus(device, 1); // 设备在线
+                }
+            } catch (Exception e) {
+                logger.error("Error processing device with ID " + device.getAndroidId(), e);
             }
         }
     }
+
     /**
      * 获取数据库中所有DeviceInfoDAO对象的id。
      *
      * @return 包含所有id的列表。
      */
-    private List<DeviceInfoDAO> getAllDeviceIds() {
+    private List<DeviceInfoDAO> getAllDevices() {
         try {
             // 查询所有DeviceInfoDAO对象
             List<DeviceInfoDAO> deviceInfoDAOs = deviceInfoDAOMapper.selectList(new QueryWrapper<>());
@@ -53,6 +65,7 @@ public class MonitorService {
         return Collections.emptyList();
     }
 
+
     private void sendNotification(DeviceInfoDAO deviceInfoDAO){
         Request request = new Request();
         String accessToken = tokenService.getAccessToken();
@@ -61,22 +74,10 @@ public class MonitorService {
         if (qyWeChatSendMessageApiResponse ==null){
             logger.info("Send Notification Fail");
         }
-        if (qyWeChatSendMessageApiResponse.getErrcode() == 0){
+        if (qyWeChatSendMessageApiResponse != null && qyWeChatSendMessageApiResponse.getErrcode() == 0) {
             logger.info("Send Notification Success");
-        } else if (qyWeChatSendMessageApiResponse.getErrcode() == 42001 || qyWeChatSendMessageApiResponse.getErrcode() == 40014){
-            tokenService.setAccessToken();
-            accessToken = tokenService.getAccessToken();
-            QyWeChatSendMessageApiResponse qyApiResponse =  request.okhttpRequest(url,accessToken,deviceInfoDAO);
-            if (qyApiResponse.getErrcode() == 0){
-                logger.info("Send Notification Success");
-            } else {
-                logger.error("Send Notification Fail");
-            }
-        } else {
-            logger.error("Send Notification Fail");
         }
     }
-
     public TextCardMessage setTextCardMessage(DeviceInfoDAO deviceInfoDAO) {
         TextCardMessage textCardMessage = new TextCardMessage();
 
@@ -97,8 +98,24 @@ public class MonitorService {
         // 将TextCard对象设置到TextCardMessage中
         textCardMessage.setTextcard(textCard);
 
-        logger.info("TextCardMessage: {}", textCardMessage.toString());
+        logger.info("TextCardMessage: {}", textCardMessage);
 
         return textCardMessage;
     }
+    private void updateStatus(DeviceInfoDAO device, int status) {
+        try {
+            UpdateWrapper<DeviceInfoDAO> updateWrapper = new UpdateWrapper<>();
+            updateWrapper.eq("android_id", device.getAndroidId());
+            updateWrapper.set("status", status);
+
+            int result = deviceInfoDAOMapper.update(null, updateWrapper);
+            if (result > 0) {
+                logger.debug("Update successful for device ID: " + device.getAndroidId());
+            } else {
+                logger.warn("Update failed: No rows affected for device ID: " + device.getAndroidId());
+            }
+        } catch (Exception e) {
+            logger.error("Error updating status for device ID: " + device.getAndroidId(), e);
+        }
+    }
 }