diff --git a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
index 3ff44f4..0b21880 100644
--- a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
+++ b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
@@ -457,8 +457,12 @@
             }
         }
         //cosmosから区画情報から取得
-        int areaInfoId =(int)((NowLat+90)/0.1)+(int)((NowLon/0.1)*1800);
-        codeToFeature =cosmos.getAreaInfo(areaInfoId).getFeature();
+
+        CosmosLocation cosmosLocation = new CosmosLocation();
+        cosmosLocation.setLatitude(NowLat);
+        cosmosLocation.setLongitude(NowLon);
+        int areaInfoId = cosmosLocation.hashCode();
+        codeToFeature=cosmos.getAreaInfo(areaInfoId).getFeature();
         //codeToFeatureの中の50m圏外Featureを削除していく。
         //HashMapを順番に実行
         for(HashMap.Entry<Integer, ArrayList<Feature>> e : codeToFeature.entrySet()) {