diff --git a/utility/serial.c b/utility/serial.c
index 5fbc625..c452bfa 100644
--- a/utility/serial.c
+++ b/utility/serial.c
@@ -282,7 +282,6 @@ int serial_close(int file_descriptor) {
 	return close(file_descriptor);
 }
 
-
 /**
  * The function waits until all queued output to the terminal filedes has been transmitted.
  *
@@ -293,8 +292,7 @@ int serial_close(int file_descriptor) {
  * @return 0 if success.
  *  return -1 if fail, and errno is set.
  */
-int serial_flush(int file_descriptor)
-{
+int serial_flush(int file_descriptor) {
     return tcdrain(file_descriptor);
 }
 
@@ -307,8 +305,7 @@ int serial_flush(int file_descriptor)
  * @return 1 if data is available
  *  return 0 if data is not available
  */
-int serial_data_available(int file_descriptor, unsigned int timeout_millisec)
-{
+int serial_data_available(int file_descriptor, unsigned int timeout_millisec) {
 	int fd = file_descriptor;
 	struct timeval timeout;
 	fd_set readfds;
@@ -347,8 +344,7 @@ int serial_data_available(int file_descriptor, unsigned int timeout_millisec)
  * @return positive integer of bytes sent if success.
  *  return -1 if failed.
  */
-int serial_send(int file_descriptor, char *buffer, size_t data_len)
-{
+int serial_send(int file_descriptor, char *buffer, size_t data_len) {
     ssize_t len = 0;
     len = write(file_descriptor, buffer, data_len);
     if ( len == data_len ) {
@@ -370,8 +366,7 @@ int serial_send(int file_descriptor, char *buffer, size_t data_len)
  * @return positive integer of bytes received if success.
  *  return -1 if failed.
  */
-int serial_receive(int file_descriptor, char *buffer,size_t data_len)
-{
+int serial_receive(int file_descriptor, char *buffer,size_t data_len) {
     int len,fs_sel;
     fd_set fs_read;
     struct timeval time;
diff --git a/utility/udp_scan.cpp b/utility/udp_scan.cpp
index aad35c4..db507fc 100644
--- a/utility/udp_scan.cpp
+++ b/utility/udp_scan.cpp
@@ -52,13 +52,11 @@ void UdpSys::recvUdpData() { udpSock.async_receive_from(boost::asio::buffer(m_bu
 void UdpSys::HandleRead(const boost::system::error_code& pEc, std::size_t pBytesTransferred) {
     std::string ip = senderEndPoint.address().to_string();
     if (pEc) {
-        std::cerr << pEc.value() << std::endl;
-        std::cerr << pEc.category().name() << std::endl;
-        std::cerr << pEc.message() << std::endl;
+        zlog_error(zct, "pEc value:%d, category name:%s, message:%s", pEc.value(), pEc.category().name(), pEc.message());        
     } else if (pBytesTransferred == 0) {
-        std::cout << "rev has rec!" << std::endl;
+        zlog_info(zct, "rev has rec!");
         if (pBytesTransferred == 0) {
-            std::cerr << "[ Read 0 Bytes ][ " << ip << "  Quit ! ]" << std::endl;
+            zlog_error(zct,"[ Read 0 Bytes ][ %s  Quit ! ]", ip.c_str());
         }
     } else {
         std::string read_cmd(m_buffer.data(), pBytesTransferred);