fix 代码优化

Src/Dlhis.Basic/Device/Response/DeviceGroupTreeResponse.cs

@@ -29,6 +29,11 @@ public class DeviceGroupTreeResponse
     /// </summary>
     public DeviceTypeEnumType? Type { get; set; }
 
+    /// <summary>
+    /// 备注
+    /// </summary>
+    public string Remark { get; set; }
+
     /// <summary>
     /// 分组类型描述
     /// </summary>

Src/Dlhis.Basic/Device/Response/DevicePageResponse.cs

@@ -85,10 +85,32 @@ public class DevicePageResponse
     /// </summary>
     public bool Enable { get; set; }
 
+
+    //*********************************************************附加信息**************************************************************/
+
+    /// <summary>
+    /// 最后心跳时间
+    /// </summary>
+    public DateTime? LastHeartbeatTime { get; set; }
+
     /// <summary>
     /// 是否在线
     /// </summary>
-    public bool IsOnline { get; set; }
+    public bool IsOnline
+    {
+        get
+        {
+            if (!LastHeartbeatTime.HasValue)
+                return false;
+            else
+            {
+                if (HeartbeatInterval <= 0)
+                    return true;
+                else
+                    return LastHeartbeatTime.Value.AddSeconds(HeartbeatInterval * 3) >= DateTime.Now;
+            }
+        }
+    }
 
     /// <summary>
     /// 消费总额
@@ -103,7 +125,7 @@ public class DevicePageResponse
     /// <summary>
     /// 营业点code
     /// </summary>
-    public string BusinessPlaceCode { get; set; }
+    public Guid? BusinessPlaceCode { get; set; }
 
     /// <summary>
     /// 营业点名称