diff --git a/all_test/main.c b/all_test/main.c
index 5bf9cf9..c090d95 100644
--- a/all_test/main.c
+++ b/all_test/main.c
@@ -176,13 +176,13 @@ int main()
                             direction = SCANDirection(target_query, direction);
 
                             // 处理下一个需要处理的请求就在脚底下的情况
-                            if(target_query != NULL && direction == BUS_STOP && target_query->node == the_bus->rail_node_pos)
+                            if(target_query != NULL  && target_query->node == the_bus->rail_node_pos)
                             {
-                                while (target_query != NULL && direction == BUS_STOP && target_query->node == the_bus->rail_node_pos)
+                                while (target_query != NULL  && target_query->node == the_bus->rail_node_pos)
                                 {
                                     DeleteQuery(target_query);
-                                    target_query = SCANGetQuery(direction);
-                                    direction = SCANDirection(target_query, direction);
+                                    target_query = SSTFGetQuery();
+                                    direction = SSTFDirection(target_query);
                                 }
                             }
                             RunBus(direction);
diff --git a/include/controller.h b/include/controller.h
index ae88926..a39e79a 100644
--- a/include/controller.h
+++ b/include/controller.h
@@ -71,4 +71,19 @@ int SCANDirection(bus_query_t *query, int orientation);
  * @return 服务的请求指针
  */
 bus_query_t *SCANBTWQuery();
+
+/**
+ * FCFS策略的控制函数
+ */
+void FCFSControl();
+
+/**
+ * SSTF策略的控制函数
+ */
+void SSTFControl();
+
+/**
+ * SCAN策略的控制函数
+ */
+void SCANControl();
 #endif //AUTO_PILOT_BUS_CONTROLLER_H
diff --git a/main.c b/main.c
index 29e83d2..0f90dbb 100644
--- a/main.c
+++ b/main.c
@@ -87,9 +87,9 @@ int main()
                             direction = SSTFDirection(target_query);
 
                             // 处理下一个需要处理的请求就在脚底下的情况
-                            if(target_query != NULL && direction == BUS_STOP && target_query->node == the_bus->rail_node_pos)
+                            if(target_query != NULL  && target_query->node == the_bus->rail_node_pos)
                             {
-                                while (target_query != NULL && direction == BUS_STOP && target_query->node == the_bus->rail_node_pos)
+                                while (target_query != NULL  && target_query->node == the_bus->rail_node_pos)
                                 {
                                     DeleteQuery(target_query);
                                     target_query = SSTFGetQuery();
diff --git a/src/controller.c b/src/controller.c
index a68a362..6354cb7 100644
--- a/src/controller.c
+++ b/src/controller.c
@@ -238,10 +238,6 @@ int SCANDirection(bus_query_t *query, int orientation)
         {
             return BUS_COUNTER_CLOCK_WISE;
         }
-        else if(distance == 0)
-        {
-            return BUS_STOP;
-        }
         else
         {
             return BUS_CLOCK_WISE;
@@ -261,10 +257,6 @@ int SCANDirection(bus_query_t *query, int orientation)
                 return BUS_CLOCK_WISE;
             }
         }
-        else if(distance == 0)
-        {
-            return BUS_STOP;
-        }
         else
         {
             return orientation;
@@ -291,4 +283,19 @@ bus_query_t *SCANBTWQuery()
     }//遍历请求链表,判断是否有可以顺便处理的请求
 
     return NULL;
+}
+
+void FCFSControl()
+{
+
+}
+
+void SSTFControl()
+{
+
+}
+
+void SCANControl()
+{
+
 }
\ No newline at end of file