diff --git a/car-base-common/src/main/java/com/god/base/domain/request/GetTopicReq.java b/car-base-common/src/main/java/com/god/base/domain/request/GetTopicReq.java
index 8ad940a..c216b63 100644
--- a/car-base-common/src/main/java/com/god/base/domain/request/GetTopicReq.java
+++ b/car-base-common/src/main/java/com/god/base/domain/request/GetTopicReq.java
@@ -12,20 +12,20 @@ public class GetTopicReq {
     /**
      * 车辆VIN
      */
-    private String vin;
+    private String vehicleVin;
 
     /**
      * 时间戳
      */
-    private String timeString;
+    private String timestamp;
 
     /**
      * 用户名
      */
-    private String userName;
+    private String username;
 
     /**
      * 随机字符串
      */
-    private String randomStr;
+    private String nonce;
 }
diff --git a/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java b/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
index 36d93b5..e4db0d8 100644
--- a/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
+++ b/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
@@ -36,11 +36,11 @@ public class TopLineServiceImpl extends ServiceImpl<TopicCarMapper, TopicCar>  i
     @Override
     public String getTopic(GetTopicReq getTopicReq) {
         try {
-            if (StringUtils.isEmpty(getTopicReq.getVin())){
+            if (StringUtils.isEmpty(getTopicReq.getVehicleVin())){
                 throw  new ServiceException("车辆vin不能为空");
             }
             //根据车辆vinId查询车辆信息
-            TopicCar topicCar = carMapper.selectById(getTopicReq.getVin());
+            TopicCar topicCar = carMapper.selectById(getTopicReq.getVehicleVin());
             if (StringUtils.isEmpty(new TopicCar[]{topicCar})){
                 throw new ServiceException("车辆信息不存在");
             }
diff --git a/car-base-server/src/main/java/com/god/base/server/util/Md5Util.java b/car-base-server/src/main/java/com/god/base/server/util/Md5Util.java
index 2ec0528..d9c7e2f 100644
--- a/car-base-server/src/main/java/com/god/base/server/util/Md5Util.java
+++ b/car-base-server/src/main/java/com/god/base/server/util/Md5Util.java
@@ -14,7 +14,7 @@ public class Md5Util {
     public static String  md5(GetTopicReq getTopicReq) {
         try {
             java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
-            String str = getTopicReq.getTimeString() + getTopicReq.getUserName() + getTopicReq.getRandomStr() + getTopicReq.getVin();
+            String str = getTopicReq.getTimestamp() + getTopicReq.getUsername() + getTopicReq.getNonce() + getTopicReq.getVehicleVin();
             byte[] array = md.digest(str.getBytes());
             StringBuffer sb = new StringBuffer();
             for (int i = 0; i < array.length; ++i) {