diff --git a/src/main/java/club/joylink/xiannccda/ats/message/MessageData.java b/src/main/java/club/joylink/xiannccda/ats/message/MessageData.java
index ef1d627..652802c 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/MessageData.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/MessageData.java
@@ -54,7 +54,7 @@ public abstract class MessageData {
    * @param buf
    * @throws Exception
    */
-  abstract void decode2(ByteBuf buf) throws Exception;
+  public abstract void decode2(ByteBuf buf) throws Exception;
 
   public void encode(ByteBuf buf) {
     final int messageLength = this.length;
@@ -70,7 +70,7 @@ public abstract class MessageData {
    *
    * @param buf
    */
-  abstract void encode2(ByteBuf buf);
+  public abstract void encode2(ByteBuf buf);
 
   public int total() {
     return this.length + 2;
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/InUsedScheduleParameterResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/InUsedScheduleParameterResponse.java
index da730c7..34b1fde 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/InUsedScheduleParameterResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/InUsedScheduleParameterResponse.java
@@ -1,12 +1,12 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 /**
  * 2.7.14 当天计划运行图参数消息
  */
-public class InUsedScheduleParameterResponse extends MessageData {
+public class InUsedScheduleParameterResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/MessageAlarmResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/MessageAlarmResponse.java
index 6621c71..6d40a93 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/MessageAlarmResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/MessageAlarmResponse.java
@@ -1,9 +1,9 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
-public class MessageAlarmResponse extends MessageData {
+public class MessageAlarmResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/ReportAskRequest.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/ReportAskRequest.java
new file mode 100644
index 0000000..5a0e454
--- /dev/null
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/ReportAskRequest.java
@@ -0,0 +1,15 @@
+package club.joylink.xiannccda.ats.message.line3;
+
+import club.joylink.xiannccda.ats.message.MessageRequest;
+import io.netty.buffer.ByteBuf;
+
+/**
+ * 2.8.1	统计信息查询消息
+ */
+public class ReportAskRequest extends MessageRequest {
+
+    @Override
+    public void encode2(ByteBuf buf) {
+
+    }
+}
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainBlockInfoResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainBlockInfoResponse.java
index 8bc5cd3..f0a0935 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainBlockInfoResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainBlockInfoResponse.java
@@ -1,6 +1,6 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 import java.util.ArrayList;
@@ -9,7 +9,7 @@ import java.util.List;
 /**
  * 2.7.13 列车阻塞消息
  */
-public class TrainBlockInfoResponse extends MessageData {
+public class TrainBlockInfoResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationInitResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationInitResponse.java
index 64a1fce..0c09380 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationInitResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationInitResponse.java
@@ -1,6 +1,6 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 import java.util.ArrayList;
@@ -9,7 +9,7 @@ import java.util.List;
 /**
  * 2.7.9列车信息全体消息
  */
-public class TrainIndicationInitResponse extends MessageData {
+public class TrainIndicationInitResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationRemoveResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationRemoveResponse.java
index 772f4f4..ccb9770 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationRemoveResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationRemoveResponse.java
@@ -1,12 +1,12 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 /**
  * 2.7.11 列车信息删除消息
  */
-public class TrainIndicationRemoveResponse extends MessageData {
+public class TrainIndicationRemoveResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationUpdateResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationUpdateResponse.java
index b139774..2deb39c 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationUpdateResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainIndicationUpdateResponse.java
@@ -1,12 +1,12 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 /**
  * 2.7.10 列车信息更新消息[增加/更新]
  */
-public class TrainIndicationUpdateResponse extends MessageData {
+public class TrainIndicationUpdateResponse extends MessageResponse {
 
     /**
      * 线路号(2)
diff --git a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainRecordResponse.java b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainRecordResponse.java
index 7518331..e4a499b 100644
--- a/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainRecordResponse.java
+++ b/src/main/java/club/joylink/xiannccda/ats/message/line3/TrainRecordResponse.java
@@ -1,12 +1,12 @@
 package club.joylink.xiannccda.ats.message.line3;
 
-import club.joylink.xiannccda.ats.message.MessageData;
+import club.joylink.xiannccda.ats.message.MessageResponse;
 import io.netty.buffer.ByteBuf;
 
 /**
  * 2.7.8列车报点消息
  */
-public class TrainRecordResponse extends MessageData {
+public class TrainRecordResponse extends MessageResponse {
 
     /**
      * 线路号(2)