diff --git a/app/Console/Commands/ScheduledMessageDelivery.php b/app/Console/Commands/ScheduledMessageDelivery.php
index cea4e7c..ed44b51 100644
--- a/app/Console/Commands/ScheduledMessageDelivery.php
+++ b/app/Console/Commands/ScheduledMessageDelivery.php
@@ -47,10 +47,14 @@ class ScheduledMessageDelivery extends Command
                 $updated_at = $item['updated_at'];
                 $updated_times = strtotime($updated_at);
                 $diff_times = $now_times - $updated_times;
-                $camera_status = ParkingCamera::query()->where(
-                    'id',
-                    $item['camera_id']
-                )->value('status');
+                $res = ParkingCamera::query()->where('id', $item['camera_id'])
+                    ->first();
+                if ($res) {
+                    $camera_status = $res['status'];
+                } else {
+                    // 设备不存在则结束不通知
+                    $camera_status = 1;
+                }
 
                 $updated = [
                     'updated_at' => $now_time