添加项目文件。

MoviconHub.App/Models/AlarmModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MoviconHub.App.Models
+{
+    /// <summary>
+    /// 报警模型
+    /// </summary>
+    public class AlarmModel
+    {
+        private readonly IFreeSql _fsql;
+        private bool _isActive;
+        private DateTime _startTime;
+
+        /// <summary>
+        /// 构造函数
+        /// </summary>
+        /// <param name="fsql">FreeSql实例</param>
+        public AlarmModel(IFreeSql fsql)
+        {
+            _fsql = fsql;
+            _isActive = false;
+            DeviceCode = string.Empty;
+            DeviceName = string.Empty;
+            AlarmMessage = string.Empty;
+            DeviceState = 0;
+        }
+
+
+        /// <summary>
+        /// 设备编号
+        /// </summary>
+        public string DeviceCode { get; set; }
+
+        /// <summary>
+        /// 设备名称
+        /// </summary>
+        public string DeviceName { get; set; }
+
+        /// <summary>
+        /// 报警信息
+        /// </summary>
+        public string AlarmMessage { get; set; }
+
+        /// <summary>
+        /// 设备状态码
+        /// </summary>
+        public int DeviceState { get; set; }
+
+        /// <summary>
+        /// Index
+        /// </summary>
+        public int Index { get; set; }
+
+        /// <summary>
+        /// 报警是否激活
+        /// </summary>
+        public bool IsActive
+        {
+            get => _isActive;
+            set
+            {
+                // 如果报警状态从激活变为不激活，保存报警记录
+                if (_isActive && !value)
+                {
+                    SaveAlarmRecord();
+                }
+                // 如果报警状态从不激活变为激活，记录开始时间
+                else if (!_isActive && value)
+                {
+                    _startTime = DateTime.Now;
+                }
+
+                _isActive = value;
+            }
+        }
+
+        /// <summary>
+        /// 更新设备码数据
+        /// </summary>
+        public void UpdateDeviceInfo(string deviceName, string DeviceCode)
+        {
+            this.DeviceName = deviceName;
+            this.DeviceCode= DeviceCode;
+        }
+
+
+        /// <summary>
+        /// 保存报警记录到数据库
+        /// </summary>
+        private void SaveAlarmRecord()
+        {
+            try
+            {
+                var endTime = DateTime.Now;
+
+                // 创建设备报警记录
+                var deviceAlarm = new DeviceAlarm
+                {
+                    DeviceCode = this.DeviceCode,
+                    DeviceName = this.DeviceName,
+                    DeviceState = this.DeviceState,
+                    AlarmMessage = this.AlarmMessage,
+                    StartTime = _startTime,
+                    EndTime = endTime
+                };
+
+                // 保存到数据库
+                _fsql.Insert(deviceAlarm).ExecuteAffrows();
+
+                Console.WriteLine($"报警记录已保存: {DeviceCode}, 开始时间: {_startTime}, 结束时间: {endTime}");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"保存报警记录失败: {ex.Message}");
+            }
+        }
+
+    }
+}