diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
index 3512490..93948ae 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
@@ -27,4 +27,7 @@ const val NAMESPACE_ANDROID = "http://schemas.android.com/apk/res/android"
 const val GAS_CLOUD_UPLOAD_SIZE_ONCE = 20
 
 // 心跳时间
-const val HEARTBEAT_TIME = 10000L
\ No newline at end of file
+const val HEARTBEAT_TIME = 10000L
+
+//存储告警阈值
+const val STORAGE_WARN_THRESHOLD = 30
\ No newline at end of file
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
index 709c139..4bd345d 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
@@ -20,6 +20,7 @@ import com.yinuo.safetywatcher.watcher.constant.CAMERA_URL
 import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_CHECK_CAMERA
 import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_CHECK_SENSOR
 import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_OPEN_CAMERA
+import com.yinuo.safetywatcher.watcher.constant.STORAGE_WARN_THRESHOLD
 import com.yinuo.safetywatcher.watcher.port.GasUtils
 import com.yinuo.safetywatcher.watcher.services.HeartbeatService
 import com.yinuo.safetywatcher.watcher.ui.view.ConfirmDialog
@@ -85,7 +86,7 @@ class HomeActivity : NoOptionsActivity() {
         }
 
         val cardAvailableSize = LztekUtil.getCardAvailableSize()
-        if (cardAvailableSize < 30) {
+        if (cardAvailableSize < STORAGE_WARN_THRESHOLD) {
             warnDialog =
                 ConfirmDialog("检测倒系统剩余存储空间较小，将影响视频录制，是否删除部分早期录像腾出空间？") {
                     warnDialog?.dismiss()