diff --git a/core/function-impl/mogo-core-function-monitoring/src/main/java/com/mogo/eagle/core/function/monitoring/CronTaskManager.kt b/core/function-impl/mogo-core-function-monitoring/src/main/java/com/mogo/eagle/core/function/monitoring/CronTaskManager.kt
index b87e3adef6..3a5dd4546d 100644
--- a/core/function-impl/mogo-core-function-monitoring/src/main/java/com/mogo/eagle/core/function/monitoring/CronTaskManager.kt
+++ b/core/function-impl/mogo-core-function-monitoring/src/main/java/com/mogo/eagle/core/function/monitoring/CronTaskManager.kt
@@ -184,7 +184,11 @@ class CronTaskManager(private var context: Context?) {
             .observeOn(AndroidSchedulers.mainThread())
             .subscribe({
                 Logger.d(TAG, "reqOpenCameraStream返回结果为：$it")
-                if (!it.flvUrl.isNullOrEmpty()) CallerHmiManager.startRoadCameraLive(it.flvUrl!!)
+                if (!it.flvUrl.isNullOrEmpty()) {
+                    CallerHmiManager.startRoadCameraLive(it.flvUrl!!)
+                } else {
+                    CallerHmiManager.showNoSignalView()
+                }
             }, {
                 Logger.e(TAG, "reqOpenCameraStream&message is:${it.message}, cause is:${it.cause}")
                 CallerHmiManager.showNoSignalView()