diff --git a/entry/src/main/ets/common/rearEndUnitsTool/tool/UdpByOne.ts b/entry/src/main/ets/common/rearEndUnitsTool/tool/UdpByOne.ts
index 1385e0f8..cbf815a5 100644
--- a/entry/src/main/ets/common/rearEndUnitsTool/tool/UdpByOne.ts
+++ b/entry/src/main/ets/common/rearEndUnitsTool/tool/UdpByOne.ts
@@ -118,18 +118,21 @@ export default class UdpByOne {
   public handleMsg() {
     let newMessage = PLCGPSData;
     if (this.GPSMsg) {
-      // 使用正则表达式提取$GPGGA消息
-      let GPGGAMsg = this.GPSMsg.match(/\$GPGGA[^$]*/)[0];
-      let GPGGAMsgArr = GPGGAMsg ? GPGGAMsg?.split(",").slice(0, 15) : [];
+      let GPGGAMatch = this.GPSMsg.match(/\$GPGGA[^$]*/);
+      let GPGGAMsgArr = GPGGAMatch ? GPGGAMatch[0]?.split(",").slice(0, 15) : [];
       //   使用正则提取$GPRMC消息
-      let GPRMCMsg = this.GPSMsg.match(/\$GPRMC[^$]*/)[0];
-      let GPRMCMsgArr = GPRMCMsg ? GPRMCMsg?.split(",").slice(0, 14) : [];
+      let GPRMCMatch = this.GPSMsg.match(/\$GPRMC[^$]*/);
+      let GPRMCMsgArr = GPRMCMatch ? GPRMCMatch?.split(",").slice(0, 14) : [];
       //   使用正则表达式提取$GPGST消息
       let GPGSTMatch = this.GPSMsg.match(/\$GPGST[^$]*/);
       let GPGSTMsgArr = GPGSTMatch ? GPGSTMatch[0]?.split(",").slice(0, 9) : [];
       //   使用正则提取$PTNL消息
-      let PTNLMsg = this.GPSMsg.match(/\$PTNL[^$]*/)[0];
-      let PTNLMsgArr = PTNLMsg.split(",")?.slice(0, 14);
+      let PTNLMatch = this.GPSMsg.match(/\$PTNL[^$]*/);
+      let PTNLMsgArr = PTNLMatch ? PTNLMatch[0].split(",")?.slice(0, 14) : [];
+
+      if(GPGGAMsgArr.length == 0 || GPRMCMsgArr.length ==0 || GPGSTMsgArr.length ==0 || PTNLMsgArr.length ==0){
+        return
+      }
 
 
       //   组合GPS数据
diff --git a/entry/src/main/ets/common/service/videoService.ts b/entry/src/main/ets/common/service/videoService.ts
index 6884c912..779b0ebb 100644
--- a/entry/src/main/ets/common/service/videoService.ts
+++ b/entry/src/main/ets/common/service/videoService.ts
@@ -50,7 +50,7 @@ export async function startRecordVideo(param, td, context, dir, path?, index?) {
       if (!path) {
         fileName = `${date}_movie_record${num}.mp4`
       } else {
-        fileName = `${date}_${path}_${index || num}.mp4`
+        fileName = `${date}_${path}_${index || num}_${num}.mp4`
       }
 
       // @ts-ignore
diff --git a/entry/src/main/ets/pages/UserInfo.ets b/entry/src/main/ets/pages/UserInfo.ets
index f90f414f..d8194797 100644
--- a/entry/src/main/ets/pages/UserInfo.ets
+++ b/entry/src/main/ets/pages/UserInfo.ets
@@ -89,6 +89,7 @@ struct UserInfo {
     'Param830Str': '0', //同一学员连续第二次考试时不再验证身份
     'Param364': '0', //考前上车准备
     'Param398': '0', //考前上车准备
+    'Param835': '0', //考前上车准备
   }
   @State startExam: boolean = false
   // 过程照片拍照
@@ -159,6 +160,7 @@ struct UserInfo {
       cancel: () => {
       },
       confirm: () => {
+        this.prePareExam()
       }
     }),
     customStyle: true,
@@ -535,6 +537,9 @@ struct UserInfo {
         if (sys.v_no === '770') {
           that.systemParam.Param770Str = sys.v_value;
         }
+        if (sys.v_no === '835') {
+          that.systemParam.Param835 = sys.v_value;
+        }
         // 开始考试前必须解开安全带或关车门
         if (sys.v_no === '803') {
           that.systemParam.Param803Str = sys.v_value + '';
@@ -1273,6 +1278,13 @@ struct UserInfo {
                 if (this.systemParam.Param612Str == '1') {
                   return
                 }
+                if(Number(this.systemParam.Param835)<=Number(this.currentUser.yycs)){
+                  this.type='3'
+                  this.title='当前考生预约考试次数为'+this.currentUser.yycs
+                  this.errorDialog.open()
+                  return
+                }
+
                 await this.prePareExam()
               })
           }
@@ -1428,4 +1440,5 @@ type systemParam = {
   'Param830Str': string, //同一学员连续第二次考试时不再验证身份
   'Param364': string, //考前上车准备
   'Param398': string, //考前上车准备
+  'Param835': string, //考前上车准备
 }
\ No newline at end of file