protected virtual void ProcessDistance(CarSignalInfo signalInfo)
        {
            if (ExamContext == null)
            {
                return;
            }

            if (ExamContext.IsExaming)
            {
                MileageUpdator.Execute(signalInfo);
                signalInfo.Distance          = MileageUpdator.Distance;
                ExamContext.TravlledDistance = signalInfo.Distance;
            }
            else
            {
                //todo:经常起步不能结束,原因,一点开始考试会先给距离附上上一次结束考试时的MileageUpdator.Distance,
                //然后再重置MileageUpdator.Distance=0,所以造成不能结束问题
                MileageUpdator.Reset();

                // Logger.Error("ProcessDistanceError","ExamContextIsNotExaming");
                signalInfo.Distance = 0;
            }
        }
 private void OnExamStart(ExamStartMessage message)
 {
     MileageUpdator.Reset();
     ExamContext = message.ExamContext;
 }