主定时器加锁

source/DeviceLibrary/assemblyLine/LineBean.cs

@@ -811,7 +811,7 @@ namespace OnlineStore.DeviceLibrary
                 }
                 }
                 finally
                 finally
                 {
                 {
-                    Monitor.Exit(mainTimer);
+                    Monitor.Exit(lockMainTimer);
                 }
                 }
                 Thread.Sleep(1);
                 Thread.Sleep(1);
             }
             }