diff --git a/6.program/wms-empty/src/main/java/com/mt/wms/empty/task/TaskDistanceUtils.java b/6.program/wms-empty/src/main/java/com/mt/wms/empty/task/TaskDistanceUtils.java
index 2b20860..8dbe757 100644
--- a/6.program/wms-empty/src/main/java/com/mt/wms/empty/task/TaskDistanceUtils.java
+++ b/6.program/wms-empty/src/main/java/com/mt/wms/empty/task/TaskDistanceUtils.java
@@ -118,10 +118,10 @@ public class TaskDistanceUtils {
         if (otherNowPosition>=minDistance&&otherNowPosition<=maxDistance){
             return true;
         }else {
-            if (Math.abs(otherNowPosition-maxDistance)<4){
+            if (Math.abs(otherNowPosition-maxDistance)<2){
                 return true;
             }
-            if (Math.abs(otherNowPosition-minDistance)<4){
+            if (Math.abs(otherNowPosition-minDistance)<2){
                 return true;
             }
             return false;