diff --git a/projects/IoTCenter/.gitignore b/projects/IoTCenter/.gitignore
index 916400a5..cd5894bd 100644
--- a/projects/IoTCenter/.gitignore
+++ b/projects/IoTCenter/.gitignore
@@ -1,6 +1,6 @@
 *.bak
 *.suo
-#*.db
+*.db
 *.db-shm
 *.db-wal
 *.user
diff --git a/projects/IoTCenter/configuration.db b/projects/IoTCenter/configuration.db
deleted file mode 100644
index 1e456526..00000000
Binary files a/projects/IoTCenter/configuration.db and /dev/null differ
diff --git a/projects/IoTCenter/iotcenter.db b/projects/IoTCenter/iotcenter.db
deleted file mode 100644
index 3796ca87..00000000
Binary files a/projects/IoTCenter/iotcenter.db and /dev/null differ
diff --git a/projects/IoTNode/.gitignore b/projects/IoTNode/.gitignore
index 916400a5..cd5894bd 100644
--- a/projects/IoTNode/.gitignore
+++ b/projects/IoTNode/.gitignore
@@ -1,6 +1,6 @@
 *.bak
 *.suo
-#*.db
+*.db
 *.db-shm
 *.db-wal
 *.user
diff --git a/projects/IoTNode/Controllers/FBee/IrController.cs b/projects/IoTNode/Controllers/FBee/IrController.cs
index 180cb03b..50b27fe7 100644
--- a/projects/IoTNode/Controllers/FBee/IrController.cs
+++ b/projects/IoTNode/Controllers/FBee/IrController.cs
@@ -3,6 +3,8 @@ using IoTNode.DeviceServices.FBee;
 using Microsoft.AspNetCore.Mvc;
 using Swashbuckle.AspNetCore.Annotations;
 using System;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
 
 namespace IoTNode.Controllers
 {
@@ -28,7 +30,7 @@ namespace IoTNode.Controllers
         }
 
         [HttpGet, Route("/[controller]/[action]"), SwaggerOperation("学习")]
-        public ApiResponse Study([SwaggerParameter("设备编号")]string number, [SwaggerParameter("按键类型")]byte type, [SwaggerParameter("键值")]ushort code)
+        public ApiResponse Study([SwaggerParameter("设备编号")]string number, [SwaggerParameter("按键类型")]byte type, [SwaggerParameter("键值"), Required, Range(1, 10)]ushort code)
         {
             return this.AsyncAction(() =>
             {
diff --git a/projects/IoTNode/configuration.db b/projects/IoTNode/configuration.db
deleted file mode 100644
index 6fcca77a..00000000
Binary files a/projects/IoTNode/configuration.db and /dev/null differ
diff --git a/projects/IoTNode/iotnode.db b/projects/IoTNode/iotnode.db
deleted file mode 100644
index 685521bc..00000000
Binary files a/projects/IoTNode/iotnode.db and /dev/null differ