diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
index 3df23bc..eccfab4 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
@@ -71,11 +71,8 @@ public class PlatePublishTask {
 				po.setId(uuid);
 				po.setSn(car.getSn());
 				po.setName("white_list_operator");
-
 				//构造数据
-				if (StrUtil.equals(car.getSn(), car.getSn())) {
-					po.setPayload(buildPayload(car));
-				}
+				po.setPayload(buildPayload(car));
 
 				//更新car_park_record表的clientId，用于回执消息更新下发状态
 				//必须在发送前更新，不然会导致发送后，还没更新完数据库，回执已经收到，无法更新数据，导致持续下发车牌
@@ -118,14 +115,12 @@ public class PlatePublishTask {
 				//构造内层数据
 				List<String> plates = new ArrayList<>();
 				for (CarInfo car : carInfos) {
-					if (StrUtil.equals(car.getSn(), car.getSn())) {
-						plates.add(car.getPlate());
+					plates.add(car.getPlate());
 
-						CarParkRecord carParkRecord = new CarParkRecord();
-						carParkRecord.setClientId(uuid);
-						carParkRecord.setId(car.getCarParkRecordId());
-						carParkRecords.add(carParkRecord);
-					}
+					CarParkRecord carParkRecord = new CarParkRecord();
+					carParkRecord.setClientId(uuid);
+					carParkRecord.setId(car.getCarParkRecordId());
+					carParkRecords.add(carParkRecord);
 				}
 				po.setPayload(buildPayloadDel(plates));