diff --git a/rslidar_pointcloud/src/rawdata.h b/rslidar_pointcloud/src/rawdata.h
index 2a176fa..dd16260 100644
--- a/rslidar_pointcloud/src/rawdata.h
+++ b/rslidar_pointcloud/src/rawdata.h
@@ -179,19 +179,18 @@ class RawData
   bool info_print_flag_;
 };
 
-float VERT_ANGLE[32];
-float HORI_ANGLE[32];
-float aIntensityCal[7][32];
-float aIntensityCal_old[1600][32];
-bool Curvesis_new = true;
-int g_ChannelNum[32][51];
-float CurvesRate[32];
-
-float temper = 31.0;
-int tempPacketNum = 0;
-int numOfLasers = 16;
-int TEMPERATURE_RANGE = 40;
-
+static float VERT_ANGLE[32];
+static float HORI_ANGLE[32];
+static float aIntensityCal[7][32];
+static float aIntensityCal_old[1600][32];
+static bool Curvesis_new = true;
+static int g_ChannelNum[32][51];
+static float CurvesRate[32];
+
+static float temper = 31.0;
+static int tempPacketNum = 0;
+static int numOfLasers = 16;
+static int TEMPERATURE_RANGE = 40;
 }  // namespace rslidar_rawdata
 
 #endif  // __RAWDATA_H