diff --git a/CMakeLists.txt b/CMakeLists.txt
index a561af7..f23b8f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,8 +15,54 @@ option(HAS_RKNN "Build with RKNN NPU support" ON)
 if(HAS_RKNN)
     add_definitions(-DHAS_RKNN)
     include_directories(/usr/local/include/rknn)
+    set(HAS_RKNN_VAL 1)
+else()
+    set(HAS_RKNN_VAL 0)
 endif()
 
+execute_process(
+    COMMAND git rev-parse --short=8 HEAD
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_COMMIT
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_QUIET
+)
+if(NOT GIT_COMMIT)
+    set(GIT_COMMIT "unknown")
+endif()
+
+execute_process(
+    COMMAND git rev-parse --abbrev-ref HEAD
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_BRANCH
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_QUIET
+)
+if(NOT GIT_BRANCH)
+    set(GIT_BRANCH "unknown")
+endif()
+
+execute_process(
+    COMMAND git describe --tags --exact-match 2>/dev/null || echo ""
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_TAG
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_QUIET
+)
+if(NOT GIT_TAG)
+    set(GIT_TAG "")
+endif()
+
+string(TIMESTAMP BUILD_DATE "%Y-%m-%d")
+string(TIMESTAMP BUILD_TIME "%H:%M:%S")
+string(TIMESTAMP BUILD_YEAR "%Y")
+
+configure_file(
+    ${CMAKE_SOURCE_DIR}/src/version.hpp.in
+    ${CMAKE_BINARY_DIR}/version.hpp
+    @ONLY
+)
+
 set(SOURCES
     src/main.cpp
     src/kalman_filter.cpp
@@ -35,6 +81,7 @@ target_include_directories(bytetrack-counter PRIVATE
     ${EIGEN3_INCLUDE_DIR}
     ${SQLite3_INCLUDE_DIRS}
     src
+    ${CMAKE_BINARY_DIR}
 )
 
 target_link_libraries(bytetrack-counter
diff --git a/build/CMakeFiles/Makefile.cmake b/build/CMakeFiles/Makefile.cmake
index 9f96cc8..075263e 100644
--- a/build/CMakeFiles/Makefile.cmake
+++ b/build/CMakeFiles/Makefile.cmake
@@ -10,6 +10,7 @@ set(CMAKE_MAKEFILE_DEPENDS
   "/opt/bytetrack-counter-cpp/CMakeLists.txt"
   "CMakeFiles/3.28.3/CMakeCXXCompiler.cmake"
   "CMakeFiles/3.28.3/CMakeSystem.cmake"
+  "/opt/bytetrack-counter-cpp/src/version.hpp.in"
   "/usr/lib/aarch64-linux-gnu/cmake/opencv4/OpenCVConfig-version.cmake"
   "/usr/lib/aarch64-linux-gnu/cmake/opencv4/OpenCVConfig.cmake"
   "/usr/lib/aarch64-linux-gnu/cmake/opencv4/OpenCVModules-release.cmake"
@@ -45,6 +46,7 @@ set(CMAKE_MAKEFILE_OUTPUTS
 
 # Byproducts of CMake generate step:
 set(CMAKE_MAKEFILE_PRODUCTS
+  "version.hpp"
   "CMakeFiles/CMakeDirectoryInformation.cmake"
   )
 
diff --git a/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.internal b/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.internal
index a29c118..f3ed96c 100644
--- a/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.internal
+++ b/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.internal
@@ -2148,6 +2148,7 @@ CMakeFiles/bytetrack-counter.dir/src/kalman_filter.cpp.o
 
 CMakeFiles/bytetrack-counter.dir/src/main.cpp.o
  /opt/bytetrack-counter-cpp/src/main.cpp
+ /opt/bytetrack-counter-cpp/build/version.hpp
  /opt/bytetrack-counter-cpp/src/batch_store.hpp
  /opt/bytetrack-counter-cpp/src/bytetrack.hpp
  /opt/bytetrack-counter-cpp/src/config.hpp
diff --git a/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.make b/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.make
index 14f78d9..79f4300 100644
--- a/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.make
+++ b/build/CMakeFiles/bytetrack-counter.dir/compiler_depend.make
@@ -2141,6 +2141,7 @@ CMakeFiles/bytetrack-counter.dir/src/kalman_filter.cpp.o: /opt/bytetrack-counter
   /usr/lib/gcc/aarch64-linux-gnu/13/include/syslimits.h
 
 CMakeFiles/bytetrack-counter.dir/src/main.cpp.o: /opt/bytetrack-counter-cpp/src/main.cpp \
+  version.hpp \
   /opt/bytetrack-counter-cpp/src/batch_store.hpp \
   /opt/bytetrack-counter-cpp/src/bytetrack.hpp \
   /opt/bytetrack-counter-cpp/src/config.hpp \
@@ -4819,6 +4820,8 @@ CMakeFiles/bytetrack-counter.dir/src/rknn_yolo.cpp.o: /opt/bytetrack-counter-cpp
 
 /usr/include/eigen3/Eigen/src/Eigenvalues/GeneralizedEigenSolver.h:
 
+version.hpp:
+
 /usr/include/eigen3/Eigen/src/Core/CommaInitializer.h:
 
 /usr/include/eigen3/Eigen/src/Core/CwiseBinaryOp.h:
diff --git a/build/CMakeFiles/bytetrack-counter.dir/flags.make b/build/CMakeFiles/bytetrack-counter.dir/flags.make
index 384a5ec..a25ee91 100644
--- a/build/CMakeFiles/bytetrack-counter.dir/flags.make
+++ b/build/CMakeFiles/bytetrack-counter.dir/flags.make
@@ -4,7 +4,7 @@
 # compile CXX with /usr/bin/c++
 CXX_DEFINES = -DHAS_RKNN
 
-CXX_INCLUDES = -I/usr/local/include/rknn -I/usr/include/eigen3 -I/opt/bytetrack-counter-cpp/src -isystem /usr/include/opencv4
+CXX_INCLUDES = -I/usr/local/include/rknn -I/usr/include/eigen3 -I/opt/bytetrack-counter-cpp/src -I/opt/bytetrack-counter-cpp/build -isystem /usr/include/opencv4
 
 CXX_FLAGS = -std=c++17
 
diff --git a/build/bytetrack-counter b/build/bytetrack-counter
index d2b9c54..0e98bb6 100755
Binary files a/build/bytetrack-counter and b/build/bytetrack-counter differ
diff --git a/build/version.hpp b/build/version.hpp
new file mode 100644
index 0000000..576cf18
--- /dev/null
+++ b/build/version.hpp
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+
+namespace version {
+
+const std::string GIT_COMMIT   = "d66af69c";
+const std::string GIT_BRANCH   = "main";
+const std::string GIT_TAG      = "";
+const std::string BUILD_DATE   = "2026-07-06";
+const std::string BUILD_TIME   = "10:23:30";
+const int         BUILD_YEAR   = 2026;
+const bool        BUILD_RKNN   = 1;
+
+}
diff --git a/src/batch_store.cpp b/src/batch_store.cpp
index 491224a..e7ff508 100644
--- a/src/batch_store.cpp
+++ b/src/batch_store.cpp
@@ -406,6 +406,14 @@ void BatchStore::start_cutoff_watcher() {
     t.detach();
 }
 
+void BatchStore::ping_activity() {
+    std::lock_guard<std::mutex> lock(state_mutex_);
+    if (!current_state_.is_null()) {
+        current_state_["last_detection_time"] = now_iso();
+        reset_batch_timer();
+    }
+}
+
 void BatchStore::shutdown() {
     shutdown_flag_ = true;
     batch_timer_running_ = false;
diff --git a/src/batch_store.hpp b/src/batch_store.hpp
index 8a58988..16d56b5 100644
--- a/src/batch_store.hpp
+++ b/src/batch_store.hpp
@@ -34,6 +34,7 @@ public:
     std::pair<int, bool> record_ayam_crossing(int track_id);
     bool record_talenan_crossing(int track_id);
     void end_batch(const std::string& closed_by = "manual");
+    void ping_activity();
     void shutdown();
 
 private:
diff --git a/src/main.cpp b/src/main.cpp
index f410774..559254a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,6 +5,7 @@
 #include "rknn_yolo.hpp"
 #include "drawing.hpp"
 #include "nms.hpp"
+#include "version.hpp"
 
 #include <opencv2/opencv.hpp>
 #include <Eigen/Dense>
@@ -98,10 +99,30 @@ int main(int argc, char* argv[]) {
     signal(SIGINT, signal_handler);
     signal(SIGTERM, signal_handler);
 
-    const char* env_path = argc > 1 ? argv[1] : nullptr;
-    g_config.load_from_env(env_path);
+    if (argc < 2) {
+        std::cout << "ByteTrack Counter (C++)" << std::endl;
+        std::cout << "Version: " << version::GIT_COMMIT
+                  << " | branch: " << version::GIT_BRANCH
+                  << " | built: " << version::BUILD_DATE << " " << version::BUILD_TIME
+                  << " | rknn: " << (version::BUILD_RKNN ? "ON" : "OFF");
+        if (!version::GIT_TAG.empty())
+            std::cout << " | tag: " << version::GIT_TAG;
+        std::cout << std::endl;
+        std::cout << "Usage: bytetrack-counter <config.env>" << std::endl;
+        std::cout << "  config.env  path to environment configuration file (required)" << std::endl;
+        return 1;
+    }
+
+    g_config.load_from_env(argv[1]);
 
     std::cout << "Starting ByteTrack Counter (C++)" << std::endl;
+    std::cout << "Version: " << version::GIT_COMMIT
+              << " | branch: " << version::GIT_BRANCH
+              << " | built: " << version::BUILD_DATE << " " << version::BUILD_TIME
+              << " | rknn: " << (version::BUILD_RKNN ? "ON" : "OFF");
+    if (!version::GIT_TAG.empty())
+        std::cout << " | tag: " << version::GIT_TAG;
+    std::cout << std::endl;
     std::cout << "Camera: " << g_config.camera_name << std::endl;
     std::cout << "Source: " << g_config.source << std::endl;
     std::cout << "Model: " << g_config.model_path << " | imgsz=" << g_config.imgsz
@@ -244,6 +265,8 @@ int main(int argc, char* argv[]) {
             int na = static_cast<int>(ayam_boxes.size());
             int nt = static_cast<int>(talenan_boxes.size());
 
+            if (na > 0) store.ping_activity();
+
             Eigen::MatrixXf ayam_mat(na, 4), talenan_mat(nt, 4);
             Eigen::VectorXf ayam_scores_vec(na), talenan_scores_vec(nt);
 
diff --git a/src/version.hpp.in b/src/version.hpp.in
new file mode 100644
index 0000000..39179ce
--- /dev/null
+++ b/src/version.hpp.in
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+
+namespace version {
+
+const std::string GIT_COMMIT   = "@GIT_COMMIT@";
+const std::string GIT_BRANCH   = "@GIT_BRANCH@";
+const std::string GIT_TAG      = "@GIT_TAG@";
+const std::string BUILD_DATE   = "@BUILD_DATE@";
+const std::string BUILD_TIME   = "@BUILD_TIME@";
+const int         BUILD_YEAR   = @BUILD_YEAR@;
+const bool        BUILD_RKNN   = @HAS_RKNN_VAL@;
+
+}