diff --git a/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java b/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java
index 4a581ac..3dc2816 100644
--- a/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java
+++ b/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java
@@ -5,14 +5,14 @@
 import java.util.HashMap;
 
 public class AreaInformation {
-    private Location location = new Location();
+    private CosmosLocation location = new CosmosLocation();
     private HashMap<Integer, ArrayList<Feature>> feature = new HashMap<>();
     private Time lastUpdated;
 
-    public void setLocation(Location location){
+    public void setLocation(CosmosLocation location){
         this.location = location;
     }
-    public Location getLocation(){
+    public CosmosLocation getLocation(){
         return this.location;
     }
 
diff --git a/app/src/main/java/com/example/cosmosclient/entities/CosmosLocation.java b/app/src/main/java/com/example/cosmosclient/entities/CosmosLocation.java
new file mode 100644
index 0000000..a13d9db
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/entities/CosmosLocation.java
@@ -0,0 +1,24 @@
+package com.example.cosmosclient.entities;
+
+public class CosmosLocation {
+    private double latitude;
+    private double longitude;
+
+    public void setLatitude(double latitude) {
+        this.latitude = latitude;
+    }
+    public double getLatitude() {
+        return latitude;
+    }
+
+    public void setLongitude(double longitude) {
+        this.longitude = longitude;
+    }
+    public double getLongitude() {
+        return longitude;
+    }
+
+    public int hashCode(){
+        return (int)((latitude+90)/0.1)+(int)((longitude/0.1)*1800);
+    }
+}
diff --git a/app/src/main/java/com/example/cosmosclient/entities/Feature.java b/app/src/main/java/com/example/cosmosclient/entities/Feature.java
index 63c3374..4321e38 100644
--- a/app/src/main/java/com/example/cosmosclient/entities/Feature.java
+++ b/app/src/main/java/com/example/cosmosclient/entities/Feature.java
@@ -3,7 +3,7 @@
 public class Feature {
     private String name;
     private int code;
-    private Location location = new Location();
+    private CosmosLocation location = new CosmosLocation();
 
     public void setName(String name){
         this.name = name;
@@ -19,10 +19,10 @@
         return this.code;
     }
 
-    public void setLocation(Location location){
+    public void setLocation(CosmosLocation location){
         this.location = location;
     }
-    public Location getLocation(){
+    public CosmosLocation getLocation(){
         return this.location;
     }
 }
diff --git a/app/src/main/java/com/example/cosmosclient/entities/Location.java b/app/src/main/java/com/example/cosmosclient/entities/Location.java
deleted file mode 100644
index 113b555..0000000
--- a/app/src/main/java/com/example/cosmosclient/entities/Location.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.example.cosmosclient.entities;
-
-public class Location {
-    private double latitude;
-    private double longitude;
-
-    public void setLatitude(double latitude) {
-        this.latitude = latitude;
-    }
-    public double getLatitude() {
-        return latitude;
-    }
-
-    public void setLongitude(double longitude) {
-        this.longitude = longitude;
-    }
-    public double getLongitude() {
-        return longitude;
-    }
-
-    public int hashCode(){
-        return (int)((latitude+90)/0.1)+(int)((longitude/0.1)*1800);
-    }
-}
diff --git a/app/src/main/java/com/example/cosmosclient/resources/LocationRest.java b/app/src/main/java/com/example/cosmosclient/resources/LocationRest.java
new file mode 100644
index 0000000..0e74d20
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/resources/LocationRest.java
@@ -0,0 +1,20 @@
+package com.example.cosmosclient.resources;
+
+import com.example.cosmosclient.entities.AreaInformation;
+import com.example.cosmosclient.entities.Feature;
+
+import java.util.ArrayList;
+
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Query;
+
+
+public interface LocationRest {
+
+    @GET("shops")
+    Call<ArrayList<Feature>> LocationService(@Query("leftLatitude") String leftLat,
+                                             @Query("leftLongitude") String leftLon,
+                                             @Query("rightLatitude") String rightLat,
+                                             @Query("rightLongitude") String rightLon);
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/cosmosclient/resources/ShopRest.java b/app/src/main/java/com/example/cosmosclient/resources/ShopRest.java
deleted file mode 100644
index 0d9a51c..0000000
--- a/app/src/main/java/com/example/cosmosclient/resources/ShopRest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.example.cosmosclient.resources;
-
-import com.example.cosmosclient.entities.Feature;
-
-import retrofit2.Call;
-import retrofit2.http.GET;
-import retrofit2.http.Query;
-
-public interface ShopRest {
-
-    @GET("rest")
-    Call<Feature> ShopRequest(@Query("longitude") double longitude,
-                              @Query("latitude") double latitude,
-                              @Query("longitudeRange") double longitudeRange,
-                              @Query("latitudeRange") double latitudeRange,
-                              @Query("shop") int shop);
-}
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 8ea8e03..055ec70 100644
--- a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
+++ b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
@@ -22,18 +22,23 @@
 import android.support.annotation.RequiresApi;
 import android.support.v4.app.ActivityCompat;
 import android.util.Log;
+import android.widget.Toast;
 
 import com.example.cosmosclient.R;
 import com.example.cosmosclient.app.Cosmos;
+import com.example.cosmosclient.entities.CosmosLocation;
+import com.example.cosmosclient.entities.Feature;
 import com.example.cosmosclient.entities.Group;
 import com.example.cosmosclient.entities.GroupListResponse;
 import com.example.cosmosclient.entities.RequestList;
 import com.example.cosmosclient.entities.jsons.GroupJson;
 import com.example.cosmosclient.resources.GroupsRest;
+import com.example.cosmosclient.resources.LocationRest;
 
 import java.io.FileDescriptor;
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.TimeZone;
 import java.util.Timer;
@@ -54,6 +59,10 @@
     private boolean isServiceRunning = false; //サービスが起動しているかを確認
     private String TAG = CosmosBackgroundService.class.getSimpleName();
     private List<Notification> notifications =null;
+    private CosmosLocation LOC = new CosmosLocation();
+    private double leftLat,leftLon,rightLat,rightLon; //ここに計算予定
+    private int count = 0;
+
 
 
     public CosmosBackgroundService() {
@@ -354,6 +363,62 @@
     }
 
     private void updateAreaInformation(Location location){
+        Cosmos app = (Cosmos) getApplication();
+        count = 0;
+        LOC.setLatitude(location.getLatitude());
+        LOC.setLongitude(location.getLongitude());
+        for(int i = 0;i<app.AreaInfoGetKey().size();i++){
+            if(LOC.hashCode() != app.AreaInfoGetKey().get(i)){
+                count++;
+            }
+        }
+        if(count == 0) {
+            //retrofitの処理
+            final Retrofit retrofit = new Retrofit.Builder()
+                    .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/cosmos/rest/")
+                    .addConverterFactory(JacksonConverterFactory.create())
+                    .build();
+            //interfaceから実装を取得
+            final LocationRest LocationService = retrofit.create(LocationRest.class);
+
+            leftLat = Math.floor((location.getLatitude() + 0.1) * 10.0) / 10.0;
+            leftLon = Math.floor(location.getLongitude() * 10.0) / 10.0;
+
+            rightLat = Math.floor(location.getLatitude() * 10.0) / 10.0;
+            rightLon = Math.floor((location.getLongitude() + 0.1) * 10.0) / 10.0;
+
+            //API呼び出しのための値入力
+            Call<ArrayList<Feature>> call = LocationService.LocationService(String.valueOf(leftLat),
+                    String.valueOf(leftLon), String.valueOf(rightLat), String.valueOf(rightLon));
+
+            //サーバからデータ受け取り
+            call.enqueue(new Callback<ArrayList<Feature>>() {
+                //成功時
+                @Override
+                public void onResponse(Call<ArrayList<Feature>> call, Response<ArrayList<Feature>> response) {
+                    if (response.isSuccessful()) {
+                        ArrayList<Feature> result = response.body();
+
+                        //app/Cosmosに情報保存
+                        Cosmos app = (Cosmos) getApplication();
+//                        app.setAreaInfo();
+
+                    } else {
+                        //onFailureでキャッチできないエラー用
+                        Toast.makeText(CosmosBackgroundService.this,
+                                "通信エラー", Toast.LENGTH_LONG).show();
+                    }
+                }
+
+                //失敗時
+                @Override
+                public void onFailure(Call<ArrayList<Feature>> call, Throwable t) {
+                    t.printStackTrace();
+                    Toast.makeText(CosmosBackgroundService.this,
+                            "区画情報の更新に失敗しました", Toast.LENGTH_SHORT).show();
+                }
+            });
+        }
 
     }
     public List<Notification> searchNotifications(Cosmos cosmos, Location location){