diff --git a/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs b/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
index 085e983..4cee006 100644
--- a/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
+++ b/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
@@ -49,6 +49,7 @@ namespace YD_AllHeartRates.Api.Services.Impl
 
             res.SchoolCode = schoolCode;
             res.Name = _loginContext.UserName;
+            res.FlushTime = Convert.ToInt32(AppSettings.FlushTime);
 
             var gIds = await _sportsContext.SchoolAssocGrade.Where(x => x.SchoolCode == schoolCode).Select(x => x.GradeId).ToListAsync();
 
diff --git a/YD_AllHeartRates.Api/Utilities/AppSettings.cs b/YD_AllHeartRates.Api/Utilities/AppSettings.cs
index 690dd09..a7b137b 100644
--- a/YD_AllHeartRates.Api/Utilities/AppSettings.cs
+++ b/YD_AllHeartRates.Api/Utilities/AppSettings.cs
@@ -6,6 +6,7 @@
         public static VirtualPathConfig VirtualPath { get; set; }
         public static SecretConfig Secret { get; set; }
         public static string ExpMinutes { get; set; }
+        public static string FlushTime { get; set; }
 
         public static string DbConnectionString { get; set; }
         public static string SmartSportsString { get; set; }
@@ -18,10 +19,11 @@
             VirtualPath = configuration.GetSection("VirtualPath").Get<VirtualPathConfig>();
             Secret = configuration.GetSection("Secret").Get<SecretConfig>();
             ExpMinutes = configuration["ExpMinutes"];
+            FlushTime = configuration["FlushTime"];
             DbConnectionString = configuration["DbConnectionString"];
             SmartSportsString = configuration["SmartSportsString"];
             CorsUrls = configuration["CorsUrls"].Split(',');
-            Mqtt = configuration.GetSection("Mqtt").Get<MqttConfig>();  
+            Mqtt = configuration.GetSection("Mqtt").Get<MqttConfig>();
         }
 
         public class LoggingConfig
diff --git a/YD_AllHeartRates.Api/appsettings.json b/YD_AllHeartRates.Api/appsettings.json
index 4ee60a3..1a6dba6 100644
--- a/YD_AllHeartRates.Api/appsettings.json
+++ b/YD_AllHeartRates.Api/appsettings.json
@@ -23,6 +23,8 @@
 
   "ExpMinutes": "120", //JWT有效期(分钟=默认120),
 
+  "FlushTime": "2000", //大屏刷新周期
+
   "AppUrls": {
   },
 
diff --git a/YD_AllHeartRates.Commons/Dto/LargeScreen/SchoolDto.cs b/YD_AllHeartRates.Commons/Dto/LargeScreen/SchoolDto.cs
index 659842f..d7a0c1a 100644
--- a/YD_AllHeartRates.Commons/Dto/LargeScreen/SchoolDto.cs
+++ b/YD_AllHeartRates.Commons/Dto/LargeScreen/SchoolDto.cs
@@ -30,6 +30,10 @@ namespace YD_AllHeartRates.Commons.Dto.LargeScreen
         /// </summary>
         public int JumpingRopeAllCount { get; set; }
 
+        /// <summary>
+        /// 刷新时间
+        /// </summary>
+        public int FlushTime { get; set; }
         /// <summary>
         /// 年级集合
         /// </summary>