diff --git a/protos/alertInfo.proto b/protos/alertInfo.proto
index cdce959..48ec940 100644
--- a/protos/alertInfo.proto
+++ b/protos/alertInfo.proto
@@ -2,8 +2,6 @@ syntax = "proto3";
 
 package state;
 
-import "google/protobuf/timestamp.proto";
-import "google/protobuf/wrappers.proto";
 
 //模型的可变的状态数据
 //import "LineNetTrainOffsetDiagram.proto";
@@ -16,11 +14,11 @@ message NccAlertInfoMessage {
 
     string level = 2;
 
-    google.protobuf.Timestamp alert_time = 3;
+    string alert_time = 3;
 
     string info = 4;
 
-    google.protobuf.Int32Value alert_tip_id = 5;
+    int32 alert_tip_id = 5;
   }
   repeated Message messages = 1;