diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/event/device/RequestTimeoutEventImpl.java b/src/main/java/com/genersoft/iot/vmp/gb28181/event/device/RequestTimeoutEventImpl.java
index bffa4cb9..2008f22e 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/event/device/RequestTimeoutEventImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/event/device/RequestTimeoutEventImpl.java
@@ -1,7 +1,6 @@
 package com.genersoft.iot.vmp.gb28181.event.device;
 
 import com.genersoft.iot.vmp.gb28181.bean.Device;
-import com.genersoft.iot.vmp.gb28181.event.SipSubscribe;
 import com.genersoft.iot.vmp.service.IDeviceService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationListener;
@@ -9,8 +8,6 @@ import org.springframework.stereotype.Component;
 
 import javax.sip.ClientTransaction;
 import javax.sip.address.SipURI;
-import javax.sip.header.CallIdHeader;
-import javax.sip.header.ToHeader;
 import javax.sip.message.Request;
 
 /**
@@ -34,7 +31,7 @@ public class RequestTimeoutEventImpl implements ApplicationListener<RequestTimeo
                 if (device == null) {
                     return;
                 }
-                deviceService.offline(device.getDeviceId());
+                deviceService.offline(device.getDeviceId(), "等待消息超时");
             }
 
         }
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/task/SipRunner.java b/src/main/java/com/genersoft/iot/vmp/gb28181/task/SipRunner.java
index cdba4454..25f07f51 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/task/SipRunner.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/task/SipRunner.java
@@ -61,7 +61,7 @@ public class SipRunner implements CommandLineRunner {
 
         for (Device device : deviceList) {
             if (deviceService.expire(device)){
-                deviceService.offline(device.getDeviceId());
+                deviceService.offline(device.getDeviceId(), "注册已过期");
             }else {
                 deviceService.online(device);
             }
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
index 9b41786f..80744c0b 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
@@ -182,7 +182,7 @@ public class RegisterRequestProcessor extends SIPRequestProcessorParent implemen
                 deviceService.online(device);
             } else {
                 logger.info("[注销成功] deviceId: {}->{}" ,deviceId, requestAddress);
-                deviceService.offline(deviceId);
+                deviceService.offline(deviceId, "主动注销");
             }
         } catch (SipException | NoSuchAlgorithmException | ParseException e) {
             e.printStackTrace();
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/notify/cmd/KeepaliveNotifyMessageHandler.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/notify/cmd/KeepaliveNotifyMessageHandler.java
index 98c1a96f..b6c27abc 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/notify/cmd/KeepaliveNotifyMessageHandler.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/notify/cmd/KeepaliveNotifyMessageHandler.java
@@ -94,7 +94,7 @@ public class KeepaliveNotifyMessageHandler extends SIPRequestProcessorParent imp
         // 刷新过期任务
         String registerExpireTaskKey = VideoManagerConstants.REGISTER_EXPIRE_TASK_KEY_PREFIX + device.getDeviceId();
         // 如果三次心跳失败，则设置设备离线
-        dynamicTask.startDelay(registerExpireTaskKey, ()-> deviceService.offline(device.getDeviceId()), device.getKeepaliveIntervalTime()*1000*3);
+        dynamicTask.startDelay(registerExpireTaskKey, ()-> deviceService.offline(device.getDeviceId(), "三次心跳失败"), device.getKeepaliveIntervalTime()*1000*3);
 
     }
 
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceStatusResponseMessageHandler.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceStatusResponseMessageHandler.java
index 0c0c71fb..7dee8dca 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceStatusResponseMessageHandler.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceStatusResponseMessageHandler.java
@@ -1,10 +1,8 @@
 package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.response.cmd;
 
 import com.alibaba.fastjson2.JSONObject;
-import com.genersoft.iot.vmp.common.VideoManagerConstants;
 import com.genersoft.iot.vmp.gb28181.bean.Device;
 import com.genersoft.iot.vmp.gb28181.bean.ParentPlatform;
-import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
 import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
 import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
 import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
@@ -26,7 +24,6 @@ import javax.sip.RequestEvent;
 import javax.sip.SipException;
 import javax.sip.message.Response;
 import java.text.ParseException;
-import java.util.Objects;
 
 @Component
 public class DeviceStatusResponseMessageHandler extends SIPRequestProcessorParent implements InitializingBean, IMessageHandler {
@@ -76,7 +73,7 @@ public class DeviceStatusResponseMessageHandler extends SIPRequestProcessorParen
         if ("ONLINE".equalsIgnoreCase(text.trim())) {
             deviceService.online(device);
         }else {
-            deviceService.offline(device.getDeviceId());
+            deviceService.offline(device.getDeviceId(), "设备状态查询结果：" + text.trim());
         }
         RequestMessage msg = new RequestMessage();
         msg.setKey(DeferredResultHolder.CALLBACK_CMD_DEVICESTATUS + device.getDeviceId());
diff --git a/src/main/java/com/genersoft/iot/vmp/service/IDeviceService.java b/src/main/java/com/genersoft/iot/vmp/service/IDeviceService.java
index 072519bd..5ef4ef45 100644
--- a/src/main/java/com/genersoft/iot/vmp/service/IDeviceService.java
+++ b/src/main/java/com/genersoft/iot/vmp/service/IDeviceService.java
@@ -24,7 +24,7 @@ public interface IDeviceService {
      * 设备下线
      * @param deviceId 设备编号
      */
-    void offline(String deviceId);
+    void offline(String deviceId, String reason);
 
     /**
      * 添加目录订阅
diff --git a/src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java
index d1e7c0b4..91b4805e 100644
--- a/src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java
@@ -156,12 +156,12 @@ public class DeviceServiceImpl implements IDeviceService {
         // 刷新过期任务
         String registerExpireTaskKey = VideoManagerConstants.REGISTER_EXPIRE_TASK_KEY_PREFIX + device.getDeviceId();
         // 如果第一次注册那么必须在60 * 3时间内收到一个心跳，否则设备离线
-        dynamicTask.startDelay(registerExpireTaskKey, ()-> offline(device.getDeviceId()), device.getKeepaliveIntervalTime() * 1000 * 3);
+        dynamicTask.startDelay(registerExpireTaskKey, ()-> offline(device.getDeviceId(), "首次注册后未能收到心跳"), device.getKeepaliveIntervalTime() * 1000 * 3);
     }
 
     @Override
-    public void offline(String deviceId) {
-        logger.error("[设备离线]， device：{}", deviceId);
+    public void offline(String deviceId, String reason) {
+        logger.error("[设备离线]，{}, device：{}", reason, deviceId);
         Device device = deviceMapper.getDeviceByDeviceId(deviceId);
         if (device == null) {
             return;