diff --git a/src/MindVisionMain.cpp b/src/MindVisionMain.cpp
index 185922a..ef7cce8 100644
--- a/src/MindVisionMain.cpp
+++ b/src/MindVisionMain.cpp
@@ -45,7 +45,7 @@ void output_control_data(const cv::Point2f* ballistic_point,
         else if (target_color == "blue") simplified_color = "b";
 
         // Construct send string
-        send_str << "s " << simplified_color << " " << std::to_string(ballistic_offset_x) << " " << std::to_string(ballistic_offset_y) << "\n";
+        send_str << "#s " << simplified_color << " " << std::to_string(ballistic_offset_x) << " " << std::to_string(ballistic_offset_y) << "*\n";
 
         // Send data
         if (ttl_communicator != nullptr) {
@@ -78,15 +78,7 @@ int main(int /*argc*/, char* /*argv*/[]) {
 
     if (Numbe == 0) {
         // 执行 shell 命令（注意安全风险！）
-        int result = std::system("soude chmod 777 /dev/tty*");
-
-        // 可选：检查命令是否成功执行
-        if (result == -1) {
-            std::cerr << "Failed to execute system command.\n";
-        } else {
-            std::cout << "Permissions updated (if any tty devices exist).\n";
-        }
-
+        std::system("sudo chmod 777 /dev/tty*");
         Numbe++;
     }