diff --git a/app/src/main/java/com/casic/detector/common/view/InstallMarkerActivity.kt b/app/src/main/java/com/casic/detector/common/view/InstallMarkerActivity.kt
index f730f6d..6b1dcde 100644
--- a/app/src/main/java/com/casic/detector/common/view/InstallMarkerActivity.kt
+++ b/app/src/main/java/com/casic/detector/common/view/InstallMarkerActivity.kt
@@ -259,13 +259,12 @@
                 override fun onDataReceived(buffer: ByteArray) {
                     val hex = buffer.toHex()
                     Log.d(kTag, hex)
-                    LoadingDialogHub.dismiss()
-                    countDownTimer.cancel()
-                    binding.readMarkerButton.isEnabled = true
-                    serialPortService?.closeSerialPort()
-
                     val markerId = hex.take(20).hexToString()
                     if (markerId.isNumber()) {
+                        LoadingDialogHub.dismiss()
+                        countDownTimer.cancel()
+                        serialPortService?.closeSerialPort()
+                        binding.readMarkerButton.isEnabled = true
                         binding.identifierInclude.identifierIdView.text = markerId
                     }
                 }
@@ -276,7 +275,7 @@
     /**
      * 搜索标识器超时倒计时
      * */
-    private val countDownTimer = object : CountDownTimer(10 * 1000, 1000) {
+    private val countDownTimer = object : CountDownTimer(10 * 1000, 500) {
         override fun onTick(millisUntilFinished: Long) {
             soundPool.play(soundResourceId, 1f, 1f, 0, 0, 1f)
         }