diff --git a/modules/drivers/radar/ultrasonic_radar/conf/ultrasonic_radar_conf.pb.txt b/modules/drivers/radar/ultrasonic_radar/conf/ultrasonic_radar_conf.pb.txt
index 599e85bd340216c4b2071b2fedc8cf3460c9f2ba..c2417c2ee58a7d179c5f72ec5375b4430fd707ab 100644
--- a/modules/drivers/radar/ultrasonic_radar/conf/ultrasonic_radar_conf.pb.txt
+++ b/modules/drivers/radar/ultrasonic_radar/conf/ultrasonic_radar_conf.pb.txt
@@ -8,3 +8,5 @@ can_conf {
   enable_debug_mode: false
   enable_receiver_log: false
 }
+
+entrance_num: 12