/// <summary>
        /// 查询车载历史数据
        /// </summary>
        /// <returns></returns>
        private List <TbccCarAiData> GetCarHistData()
        {
            try
            {
                if (BaseServer.AddUploadStateColumn(_CarTableName, _LastUploadTime))
                {
                    FrmMain._MainForm.AppendLogText(string.Format("添加上报状态并更新成功[ProjectId={0}] [NetId={1}]", _ProjectNo, _NetId));
                }
                List <TbccCarAiData> carHistDataList = new List <TbccCarAiData>();
                //string sql = string.Format("select * from {0} where BeginTime<='{1}' order by BeginTime desc limit 1", _CarStartUpTableName, _LastUploadTime);
                //List<TbccCarStartUp> carStartUp = BaseServer._DBHelper.ReadEntityList<TbccCarStartUp>(sql);
                //if (carStartUp != null && carStartUp.Count > 0)
                //{
                //    string currentTimeWhere = string.Format(" and updateTime < '{0}' ", DateTime.Now.AddHours(2).ToString("yyyy-MM-dd HH:mm:ss"));
                //    currentTimeWhere = string.Format(" and parentId = '{0}'", carStartUp[0].Id);//更改策略为根据启停上报,无需根据当前时间判断
                //    sql = string.Format("select * from {0} where updateTime > '{1}' {3} order by updateTime limit {2}", _CarTableName, _LastUploadTime, FrmMain._uploadLimit, currentTimeWhere);
                //    carHistDataList = BaseServer._DBHelper.ReadEntityList<TbccCarAiData>(sql);
                //    //在上位机中启停数据已处理完,并且当前进度之后无数据,表示该启停数据已经完成
                //    if ((carHistDataList.Count == 0 && carStartUp[0].Finished == 1))
                //    {
                //        //获取下一个启停,去下一个启停中查询历史数据
                //        sql = string.Format("select * from {0} where id>{1} order by id limit 1", _CarStartUpTableName, carStartUp[0].Id);
                //        carStartUp = BaseServer._DBHelper.ReadEntityList<TbccCarStartUp>(sql);
                //        if (carStartUp != null && carStartUp.Count > 0)
                //        {
                //            currentTimeWhere = string.Format(" and parentId = '{0}'", carStartUp[0].Id);//更改策略为根据启停上报,无需根据当前时间判断
                //            sql = string.Format("select * from {0} where updateTime > '{1}' {3} order by updateTime limit {2}", _CarTableName, _LastUploadTime, FrmMain._uploadLimit, currentTimeWhere);
                //            carHistDataList = BaseServer._DBHelper.ReadEntityList<TbccCarAiData>(sql);
                //        }
                //    }
                //}

                string sql = string.Format("select * from {0} where fdap4jcUploadState=0 and updateTime>'2015-12-01 00:00' and updateTime<'{2}' order by updateTime limit {1};", _CarTableName, FrmMain._uploadLimit, DateTime.Now.AddHours(2));
                carHistDataList = BaseServer._DBHelper.ReadEntityList <TbccCarAiData>(sql);
                return(carHistDataList);
            }
            catch (Exception ex)
            {
                FrmMain._MainForm.AppendLogText(string.Format("查询车载历史数据出错[ProjectId={0}] [NetId={1}]:{2}", _ProjectNo, _NetId, ex.Message));
            }
            return(new List <TbccCarAiData>());
        }