diff --git a/entry/src/main/ets/config/LogEnum.ets b/entry/src/main/ets/config/LogEnum.ets
index 5c29dee..31d64e5 100644
--- a/entry/src/main/ets/config/LogEnum.ets
+++ b/entry/src/main/ets/config/LogEnum.ets
@@ -71,5 +71,9 @@ export const StartExamTag = '[StartExam]'
 
 //人脸对比
 export const FaceCompareTag = '[FaceCompare]';
+
 //过程数据处理
 export const ProcessDataTag = '[ProcessData]';
+
+// 日志
+export const LogTag = '[LogWorker]';
diff --git a/entry/src/main/ets/pages/Judge.ets b/entry/src/main/ets/pages/Judge.ets
index 2517f45..3699722 100644
--- a/entry/src/main/ets/pages/Judge.ets
+++ b/entry/src/main/ets/pages/Judge.ets
@@ -206,6 +206,7 @@ struct JudgePage {
   }
 
   async aboutToAppear() {
+    dConsole.log(JudgeTag, "JudgePage aboutToAppear")
     this.carInfo = AppStorage.get<CarInfoType>('carInfo')!
     this.singlePlay = AppStorage.get<boolean>('singlePlay')!
     this.startFullTime = dayTs().format("YYYYMMDDHHmmss");
diff --git a/entry/src/main/ets/pages/Judge/components/Message.ets b/entry/src/main/ets/pages/Judge/components/Message.ets
index f7d8895..64094d4 100644
--- a/entry/src/main/ets/pages/Judge/components/Message.ets
+++ b/entry/src/main/ets/pages/Judge/components/Message.ets
@@ -12,13 +12,19 @@ export default struct MessageComponent {
   @Prop jl: number
   @Prop wayno: number
   @Prop judgeConfigObj: DefaultJudgeConfigObj
+  @State timer: number = -1
 
   aboutToAppear(): void {
-    setInterval(async () => {
+    this.timer = setInterval(async () => {
       this.examTime += 1;
     }, 1000);
   }
 
+  aboutToDisappear(): void {
+    clearInterval(this.timer)
+    this.timer = -1
+  }
+
   build() {
     Row() {
       Column() {
diff --git a/entry/src/main/ets/pages/UserInfo.ets b/entry/src/main/ets/pages/UserInfo.ets
index a95b50d..b93c9b2 100644
--- a/entry/src/main/ets/pages/UserInfo.ets
+++ b/entry/src/main/ets/pages/UserInfo.ets
@@ -166,6 +166,7 @@ struct UserInfoPage {
   ]
   //开始考试准备
   prePareExam = async () => {
+    dConsole.log(StartExamTag, 'prePareExam')
     try {
       // await this.checkSignal()
       await CheckSignal(this.systemParam, this.avPlayer)
@@ -175,14 +176,16 @@ struct UserInfoPage {
       if (!this.currentUser.xm) {
         return
       }
+      // 单机
       if (this.singlePlay) {
         this.currentUser.id = '0'
-        dConsole.log('开始考试3')
+        dConsole.log(StartExamTag, '开始考试3', this.currentUser)
         SqlInsertTable('USER', [this.currentUser]).catch((e: BusinessError) => {
-          dConsole.log("error", JSON.stringify(e))
+          dConsole.log(StartExamTag, "error", JSON.stringify(e))
         })
         // 初始化开始考试过程数据文件夹
         InitializeExamProcessData(this.currentUser)
+        dConsole.log(StartExamTag, '开始考试4')
         router.pushUrl({
           url: this.carInfo.examSubject == '3' ? 'pages/Roads' : 'pages/Judge',
           params: {
@@ -193,7 +196,7 @@ struct UserInfoPage {
         this.stopDeviceById()
         return
       }
-      dConsole.log('this.FaceOpenStatuethis.FaceOpenStatue', this.FaceOpenStatue)
+      dConsole.log(StartExamTag, 'this.FaceOpenStatuethis.FaceOpenStatue', this.FaceOpenStatue)
       if (this.FaceOpenStatue != '0') {
         //   同一学员连续第二次考试时不再验证身份
         if (this.currentUser.kssycs == '1' && this.systemParam.Param830Str == '1') {
@@ -205,7 +208,7 @@ struct UserInfoPage {
         this.sfbdinterfaceFn()
       }
     } catch (e) {
-      dConsole.info('Throw Error', JSON.stringify(e))
+      dConsole.error(UserInfoTag, 'Throw Error', JSON.stringify(e))
     }
 
   }
@@ -292,7 +295,7 @@ struct UserInfoPage {
     // TODO UDP更改
     //监听远程开始考试
     JudgeEmitterInstance.onBeginExam(async () => {
-      dConsole.info('surenjun', 'userInfo收到UdpEvent事件')
+      dConsole.log('surenjun', 'userInfo收到UdpEvent事件')
       if (this.isBoardPrePareSetPopupOpen && !this.isFirstBoardPrePareSetPopupBtnShow) {
         await this.prePareSCZB()
       } else {
@@ -315,7 +318,7 @@ struct UserInfoPage {
     if (ret == 0) {
       testNapi.StartReadCard(this.onReadCard);
     } else {
-      dConsole.error("zzctest Failed to Open Device");
+      dConsole.error(UserInfoTag, " Failed to Open Device");
     }
   }
 
@@ -380,7 +383,7 @@ struct UserInfoPage {
   }
 
   onReadCard(ret: IDCardSDK.IDCardInfo) {
-    dConsole.info(`zzctest xx Read Card ret =${ret.status}`)
+    dConsole.log(`zzctest xx Read Card ret =${ret.status}`)
     let thisVar: IdCard = AppStorage.get('indexComponent')!;
 
     if (ret.status == 0) { // status = 1 为读到身份证信息； status = 1 为身份证离开读卡器
@@ -399,10 +402,10 @@ struct UserInfoPage {
 
     if (ret.baseInfo.length > 2) {
       // 收到身份证信息，填充页面
-      dConsole.info(`zzctest Read Card 1`);
+      dConsole.log(`zzctest Read Card 1`);
       let subIndex = ret.baseInfo.indexOf(":")
       let baseInfo: string = ret.baseInfo.substring(subIndex + 1, ret.baseInfo.length - 1);
-      dConsole.info(`zzctest Read Card 2 baseInfo=${baseInfo}`);
+      dConsole.log(`zzctest Read Card 2 baseInfo=${baseInfo}`);
       let baseInfos: string[] = baseInfo.split("|");
       thisVar.name = baseInfos[0];
       thisVar.sex = baseInfos[1];
@@ -418,7 +421,7 @@ struct UserInfoPage {
     // 身份证照片数据处理
     if (ret.photo instanceof ArrayBuffer) {
       let dataView = new DataView(ret.photo)
-      dConsole.info(`Read Card ret = length = ${dataView.byteLength}`)
+      dConsole.log(`Read Card ret = length = ${dataView.byteLength}`)
       let str = ""
       for (let i = 0; i < dataView.byteLength; ++i) {
         let c = String.fromCharCode(dataView.getUint8(i))
@@ -428,7 +431,7 @@ struct UserInfoPage {
       }
       thisVar.photo += str;
     }
-    dConsole.info(`zzctest Read Card end`);
+    dConsole.log(`zzctest Read Card end`);
     return true;
   }
 
@@ -880,9 +883,9 @@ struct UserInfoPage {
     this.startExamDialogController.open()
 
     avPlayer.playAudio([`voice/监管通信中.mp3`], false, async () => {
-      dConsole.info('surenjun', '播放结束开始考试接口调用')
+      dConsole.log(StartExamTag, '播放结束开始考试接口调用')
       const res = await this.beginExam()
-      dConsole.info('surenjun', '开始考试接口调用结束', JSON.stringify(res))
+      dConsole.log(StartExamTag, '开始考试接口调用结束', res)
       //TODO code转换
       if (res.code != 1) {
         avPlayer.playAudio([res.code == -200 ? 'voice/photo_error.mp3' : 'voice/监管审核未通过.mp3']);
@@ -895,12 +898,18 @@ struct UserInfoPage {
         return
       }
       this.currentUser.id = '0'
-      // await upDateTableByArray('USER', [this.currentUser])
-      await SqlInsertTable('USER', [this.currentUser])
+      dConsole.log(StartExamTag, '插入用户表1')
+      try {
+        await SqlInsertTable('USER', [this.currentUser])
+      } catch (e) {
+        dConsole.error(StartExamTag, '插入用户表失败', e)
+      }
+      dConsole.log(StartExamTag, '插入用户表结束', res)
       this.stepFlag = false
       this.startExamDialogController.close()
       // 初始化开始考试过程数据文件夹
       InitializeExamProcessData(this.currentUser)
+
       router.pushUrl({
         url: 'pages/Judge',
         params: {
@@ -923,6 +932,7 @@ struct UserInfoPage {
     const startHourTime = dayTs().format("HHmmssSSS")
     AppStorage.setOrCreate('startHourTime', startHourTime)
     const photoBase64 = await GetPhotoBase64(this.context);
+    dConsole.log(StartExamTag, "开始考试拍照完成")
     if (photoBase64 == '') {
       dConsole.log(StartExamTag, "拍照失败")
       this.startExamDialogController.close()
@@ -949,7 +959,7 @@ struct UserInfoPage {
       //接口标识
       jkid: '17C51',
     }
-    dConsole.info('surenjunjianguan', JSON.stringify(param))
+    dConsole.log(StartExamTag, "开始考试上传中心参数", param)
     const temp = await writeObjectOut(param, "", this.context);
     AppStorage.setOrCreate('lsh', this.currentUser.lsh)
     this.examinerLoginInfo.ksyh = this.currentUser.ksy1sfzmhm
@@ -1136,6 +1146,7 @@ struct UserInfoPage {
                     dConsole.log(UserInfoTag, "不给开始考试")
                     return
                   }
+                  dConsole.log(StartExamTag, "开始考试按钮点击")
                   await this.prePareExam()
                 })
             }
diff --git a/entry/src/main/ets/utils/DbSql.ets b/entry/src/main/ets/utils/DbSql.ets
index 73768dd..c727f77 100644
--- a/entry/src/main/ets/utils/DbSql.ets
+++ b/entry/src/main/ets/utils/DbSql.ets
@@ -15,8 +15,20 @@ export enum ColumnType {
 }
 
 class DbUtils {
+  private static instance: DbUtils | null = null;
   rdbStore: relationalStore.RdbStore | undefined = undefined
 
+  private constructor() {
+    console.log(DbTag, "DbUtils instance created.");
+  }
+
+  public static getInstance(): DbUtils {
+    if (!DbUtils.instance) {
+      DbUtils.instance = new DbUtils();
+    }
+    return DbUtils.instance;
+  }
+
   // 初始化 无需记录日志
   init(context: common.UIAbilityContext) {
     let config: relationalStore.StoreConfig = {
@@ -27,6 +39,7 @@ class DbUtils {
       relationalStore.getRdbStore(context, config)
         .then(rdbStore => {
           this.rdbStore = rdbStore
+          console.log(DbTag, "rdbStore:", JSON.stringify(rdbStore))
           console.log(DbTag, "db rdbStore init success")
           resolve()
         })
@@ -60,6 +73,7 @@ class DbUtils {
   clearTable(tableName: string): Promise<void> {
     let sql = `DELETE FROM ${tableName}`
     return new Promise((resolve, reject) => {
+      console.log(DbTag, "sql clearTable", JSON.stringify(this.rdbStore))
       if (this.rdbStore) {
         this.rdbStore?.executeSql(sql).then(() => {
           console.log(DbTag, "sql clearTable success", sql)
@@ -242,6 +256,7 @@ class DbUtils {
   }
 }
 
-let DB: DbUtils = new DbUtils()
+// let DB: DbUtils = new DbUtils()
+const DB: DbUtils = DbUtils.getInstance();
 
 export default DB
diff --git a/entry/src/main/ets/workers/DifferentialCorrection.ets b/entry/src/main/ets/workers/DifferentialCorrection.ets
index 27e8feb..1113fa9 100644
--- a/entry/src/main/ets/workers/DifferentialCorrection.ets
+++ b/entry/src/main/ets/workers/DifferentialCorrection.ets
@@ -70,6 +70,7 @@ function getDataFn(config: EnvironmentConfigurationType) {
       // 需要观察
       console.log(WorkerTag, "后置机消息", data)
       const res = await SerialPortService.getData()
+      console.log(SerialPortTag, "档位原始数据", res)
       if (res.length > 0) {
         const dataArray = data.split(",");
         // 替换data的第28位
diff --git a/entry/src/main/ets/workers/Log.ets b/entry/src/main/ets/workers/Log.ets
index 8709e26..6597d54 100644
--- a/entry/src/main/ets/workers/Log.ets
+++ b/entry/src/main/ets/workers/Log.ets
@@ -1,13 +1,6 @@
 import worker, { ErrorEvent, MessageEvents, ThreadWorkerGlobalScope } from '@ohos.worker';
-import { GlobalConfig } from '../config';
-import {
-  FileQueueType,
-  LogFileFd,
-  LogPathType,
-  LogWorkerMessage,
-  ProcessDataEnumType,
-  WorkerMessageType
-} from '../model';
+import { GlobalConfig, LogTag } from '../config';
+import { FileQueueType, LogPathType, LogWorkerMessage, ProcessDataEnumType, WorkerMessageType } from '../model';
 import { CreateDir, CreateFile, EditFile, IsExit } from '../utils/Common';
 import dayTs from '../utils/Date';
 import fs from '@ohos.file.fs';
@@ -20,7 +13,7 @@ let fileFdArr: number[] = []
 let writeQueue: Array<FileQueueType> = [];
 let isProcessing = false;
 workerPort.onmessage = (e: MessageEvents) => {
-  console.log("日志系统worker收到消息")
+  console.log(LogTag, "日志系统worker收到消息")
   // 日志文件目录
   let logPaths: LogPathType = {
     log: `${GlobalConfig.commonFileWriteAddress}/logs/${dayTs().format("YYYY_MM_DD")}/log/log.log`,
@@ -80,7 +73,7 @@ async function InitLog() {
 
 // 初始化学员过程数据目录
 async function InitExam(dirName: string) {
-  console.log("初始化过程", dirName)
+  console.log(LogTag, "初始化过程", dirName)
   let date = dayTs().format("YYYY_MM_DD")
   const path = `${GlobalConfig.commonFileWriteAddress}/logs/${date}/${dirName}`
   const nameDirIsExit = await IsExit(path)
@@ -90,7 +83,7 @@ async function InitExam(dirName: string) {
   //   创建几个文件
   fileNameArr.forEach(async (item: string, index: number) => {
     let filePath = path + "/" + item
-    console.log("创建文件", filePath)
+    console.log(LogTag, "创建文件", filePath)
     let result = await CreateFile(filePath)
     fileFdArr[index] = result
   })
@@ -132,7 +125,6 @@ async function WriteProcessData(type: ProcessDataEnumType, data: string) {
   } else {
     writeQueue.push({ type, data });
   }
-
   if (!isProcessing) {
     processQueue();
   }
@@ -153,7 +145,7 @@ function CloseProcessData() {
   fileFdArr.forEach((item: number) => {
     fs.closeSync(item)
   })
-  console.log("关闭过程数据")
+  console.log(LogTag, "关闭过程数据")
 }
 
 workerPort.onmessageerror = (e: MessageEvents) => {