1

RIZO_Application/Modules/RIZO_Application.Modules.ModuleName/ViewModels/ScanControlViewModel.cs

@@ -18,6 +18,8 @@ namespace RIZO_Application.Modules.ModuleName.ViewModels
         private ComScanHelper _scanHelper;
         private bool _isDisposed;
         private bool _isConnected;
+        private string _lastLabel;
+        private DateTime _lastScanTime;
         // 串口连接状态属性
         public bool IsConnected
         {
@@ -110,6 +112,15 @@ namespace RIZO_Application.Modules.ModuleName.ViewModels
         // 定义事件处理方法
         private void HandleMessage(object sender, string labelCode)
         {
+            DateTime now = DateTime.Now;
+            // 短时间内重复扫了同一个标签（时间间隔小于500毫秒）
+            if (_lastLabel!= null && _lastLabel == labelCode && (now - _lastScanTime).TotalMilliseconds < 500)
+            {
+                _eventAggregator.GetEvent<SystemLogEvent>().Publish($"重复扫码过滤: {labelCode}");
+                return;
+            }
+            _lastLabel = labelCode;
+            _lastScanTime = now;
             // 打印接收到的消息信息
             //_eventAggregator.GetEvent<SystemLogEvent>().Publish($"收到串口信息: {labelCode}");
             _eventAggregator.GetEvent<ScanEvent>().Publish(labelCode);