diff --git a/AccordionBus/AccordionBus/DrawningObjectBus.cs b/AccordionBus/AccordionBus/DrawningObjectBus.cs
index 82be0ff..5c56ef6 100644
--- a/AccordionBus/AccordionBus/DrawningObjectBus.cs
+++ b/AccordionBus/AccordionBus/DrawningObjectBus.cs
@@ -39,5 +39,57 @@ namespace AccordionBus
         public string GetInfo() => _bus?.GetDataForSave();
 
         public static IDrawningObject Create(string data) => new DrawningObjectBus(data.CreateDrawningBus());
+
+        public bool Equals(IDrawningObject? other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+            var otherBus = other as DrawningObjectBus;
+            if (otherBus == null)
+            {
+                return false;
+            }
+            var bus = _bus.Bus;
+            var otherBusBus = otherBus._bus.Bus;
+            if (bus.GetType() != otherBusBus.GetType())
+            {
+                return false;
+            }
+            if (bus.Speed != otherBusBus.Speed)
+            {
+                return false;
+            }
+            if (bus.Weight != otherBusBus.Weight)
+            {
+                return false;
+            }
+            if (bus.BodyColor != otherBusBus.BodyColor)
+            {
+                return false;
+            }
+            // проверка в случае продвинутого объекта
+            if (bus is EntityAccordionBus entityAccordionBus && otherBusBus is EntityAccordionBus otherEntityAccordionBus)
+            {
+                if (entityAccordionBus.DopColor != otherEntityAccordionBus.DopColor)
+                {
+                    return false;
+                }
+                if (entityAccordionBus.Compartment != otherEntityAccordionBus.Compartment)
+                {
+                    return false;
+                }
+                if (entityAccordionBus.RearviewMirror != otherEntityAccordionBus.RearviewMirror)
+                {
+                    return false;
+                }
+                if (entityAccordionBus.BusNumber != otherEntityAccordionBus.BusNumber)
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
     }
 }
diff --git a/AccordionBus/AccordionBus/IDrawningObject.cs b/AccordionBus/AccordionBus/IDrawningObject.cs
index d5a475e..8857f2b 100644
--- a/AccordionBus/AccordionBus/IDrawningObject.cs
+++ b/AccordionBus/AccordionBus/IDrawningObject.cs
@@ -10,7 +10,7 @@ namespace AccordionBus
     /// <summary>
     /// Интерфейс для работы с объектом, прорисовываемым на форме
     /// </summary>
-    internal interface IDrawningObject
+    internal interface IDrawningObject : IEquatable<IDrawningObject>
     {
         /// <summary>
         /// Шаг перемещения объекта
diff --git a/AccordionBus/AccordionBus/MapWithSetBusesGeneric.cs b/AccordionBus/AccordionBus/MapWithSetBusesGeneric.cs
index 9f71cf2..d3f8e5a 100644
--- a/AccordionBus/AccordionBus/MapWithSetBusesGeneric.cs
+++ b/AccordionBus/AccordionBus/MapWithSetBusesGeneric.cs
@@ -13,7 +13,7 @@ namespace AccordionBus
     /// <typeparam name="T"></typeparam>
     /// <typeparam name="U"></typeparam>
     internal class MapWithSetBusesGeneric<T, U>
-        where T : class, IDrawningObject
+        where T : class, IDrawningObject, IEquatable<T>
         where U : AbstractMap
     {
         /// <summary>
diff --git a/AccordionBus/AccordionBus/SetBusesGeneric.cs b/AccordionBus/AccordionBus/SetBusesGeneric.cs
index ac8ebe7..83ef24a 100644
--- a/AccordionBus/AccordionBus/SetBusesGeneric.cs
+++ b/AccordionBus/AccordionBus/SetBusesGeneric.cs
@@ -11,7 +11,7 @@ namespace AccordionBus
     /// </summary>
     /// <typeparam name="T"></typeparam>
     internal class SetBusesGeneric<T>
-        where T : class
+        where T : class, IEquatable<T>
     {
         /// <summary>
         /// Список объектов, которые храним
@@ -49,6 +49,11 @@ namespace AccordionBus
         /// <returns>Возвращает позицию вставленного объекта, либо -1 если его не удалось вставить</returns>
         public int Insert(T bus, int position)
         {
+            // Проверка на уникальность
+            if (_places.Contains(bus))
+            {
+                return -1;
+            }
             //проверка позиции
             if (Count == _maxCount)
             {