添加项目文件。

UIShare/GlobalVariable/ValueLimitAlarmHelper.cs

@@ -0,0 +1,56 @@
+using System.Linq;
+using UIShare.UIViewModel;
+
+namespace UIShare.GlobalVariable
+{
+    /// <summary>
+    /// 值限制报警检查辅助类：供各广播器在采样到信号值时统一判断是否超限。
+    /// </summary>
+    public static class ValueLimitAlarmHelper
+    {
+        /// <summary>
+        /// 根据指定作用域的 ValueLimitList 检查当前值是否超限，并更新报警状态。
+        /// </summary>
+        /// <param name="scope">作用域名称</param>
+        /// <param name="fingerprint">硬件指纹</param>
+        /// <param name="methodName">方法名/信号标识</param>
+        /// <param name="value">当前采样值</param>
+        /// <param name="globalInfo">全局信息</param>
+        public static string CheckAlarm(string scope, string fingerprint, string methodName, double value, GlobalInfo globalInfo)
+        {
+            if (globalInfo?.ConfigDic == null) return "";
+            if (!globalInfo.ConfigDic.TryGetValue(scope, out var systemConfig)) return "";
+            if (systemConfig.ValueLimitList == null) return "";
+
+            var limit = systemConfig.ValueLimitList.FirstOrDefault(x =>
+                x.Fingerprint == fingerprint && x.MethodName == methodName);
+            if (limit == null) return "";
+             if (value > limit.UpperExtreme)
+            {
+                limit.IsAlarm = true;
+                limit.AlarmSatus = AlarmStatus.超上极限;
+            }
+            else if (value < limit.LowerExtreme)
+            {
+                limit.IsAlarm = true;
+                limit.AlarmSatus = AlarmStatus.超下极限;
+            }
+            else if (value > limit.Upper)
+            {
+                limit.IsAlarm = true;
+                limit.AlarmSatus = AlarmStatus.超上限;
+            }
+            else if (value < limit.Lower)
+            {
+                limit.IsAlarm = true;
+                limit.AlarmSatus = AlarmStatus.超下限;
+            }
+            else
+            {
+                limit.IsAlarm = false;
+                limit.AlarmSatus = AlarmStatus.未报警;
+            }
+            return limit.AlarmSatus.ToString();
+        }
+    }
+}