diff --git a/src/simulations/mapping/binary_grid_map_construction/binary_grid_map_construction.py b/src/simulations/mapping/binary_grid_map_construction/binary_grid_map_construction.py
index eea0b14..9021eb5 100644
--- a/src/simulations/mapping/binary_grid_map_construction/binary_grid_map_construction.py
+++ b/src/simulations/mapping/binary_grid_map_construction/binary_grid_map_construction.py
@@ -3,3 +3,11 @@
 
 Author: Shisato Yano
 """
+
+# import path setting
+import sys
+import numpy as np
+from pathlib import Path
+
+abs_dir_path = str(Path(__file__).absolute().parent)
+relative_path = "/../../../components/"