diff --git a/include/data_convert/data_convert.h b/include/data_convert/data_convert.h
index 87354f5..d5f0d0c 100644
--- a/include/data_convert/data_convert.h
+++ b/include/data_convert/data_convert.h
@@ -10,32 +10,32 @@
 #include <robot/time.h>
 #include <cmath>
 
-template <typename T>
-bool isEqual(const T& a, const T& b, double eps = 1e-5)
-{
-    return std::fabs(a - b) < eps;
-}
+// template <typename T>
+// bool isEqual(const T& a, const T& b, double eps = 1e-5)
+// {
+//     return std::fabs(a - b) < eps;
+// }
 
-inline bool operator==(const geometry_msgs::Quaternion& a, const geometry_msgs::Quaternion& b)
-{
-    return isEqual(a.x, b.x) && isEqual(a.y, b.y) && isEqual(a.z, b.z) && isEqual(a.w, b.w);
-}
+// inline bool operator==(const geometry_msgs::Quaternion& a, const geometry_msgs::Quaternion& b)
+// {
+//     return isEqual(a.x, b.x) && isEqual(a.y, b.y) && isEqual(a.z, b.z) && isEqual(a.w, b.w);
+// }
 
-inline bool operator==(const geometry_msgs::Point& a, const geometry_msgs::Point& b)
-{
-    return isEqual(a.x, b.x) && isEqual(a.y, b.y) && isEqual(a.z, b.z);
-}
+// inline bool operator==(const geometry_msgs::Point& a, const geometry_msgs::Point& b)
+// {
+//     return isEqual(a.x, b.x) && isEqual(a.y, b.y) && isEqual(a.z, b.z);
+// }
 
-inline bool operator==(const geometry_msgs::Pose& a, const geometry_msgs::Pose& b)
-{
-    return (a.position == b.position) && (a.orientation == b.orientation);
-}
+// inline bool operator==(const geometry_msgs::Pose& a, const geometry_msgs::Pose& b)
+// {
+//     return (a.position == b.position) && (a.orientation == b.orientation);
+// }
 
-inline bool operator==(const geometry_msgs::PoseStamped& a, const geometry_msgs::PoseStamped& b)
-{
-    return (a.header.frame_id == b.header.frame_id) &&
-        (a.pose == b.pose);
-}
+// inline bool operator==(const geometry_msgs::PoseStamped& a, const geometry_msgs::PoseStamped& b)
+// {
+//     return (a.header.frame_id == b.header.frame_id) &&
+//         (a.pose == b.pose);
+// }
 namespace data_convert
 {