diff --git a/handler/tool.go b/handler/tool.go
index 25b6f28..f132126 100644
--- a/handler/tool.go
+++ b/handler/tool.go
@@ -76,7 +76,8 @@ func SetDeviceStatusV2(c *gin.Context) {
 			if v == req.ID {
 				// 继续处理请求
 				//是否是暂停之后第一次上线,如果是则发送邮件通知
-				if worker.IsContainKey("monitor_"+req.ID) == false {
+				device_status := worker.GetRedis("monitor_" + req.ID)
+				if device_status == "2" {
 					//发送邮件通知
 					title := "设备上线"
 					content := "设备上线\n设备:" + req.ID + "\t状态:" + req.Status + "\t时间：" + time.Now().String()
@@ -329,7 +330,7 @@ func ScanDeviceStatus() {
 	for _, v := range devices {
 		c := worker.IsContainKey("monitor_" + v)
 		if c == false {
-			worker.SetRedisWithExpire("monitor_"+v, "1", time.Hour*24)
+			worker.SetRedisWithExpire("monitor_"+v, "2", time.Hour*24)
 			offline += v + ","
 		}
 	}