Vehicle driving situation data recognition and modification method

The invention provides a vehicle driving situation data recognition and modification method. The method comprises the following steps: acquiring vehicle road driving testing data by using a vehicle speed recorder, judging the validity of a speed signal according to the positioning state of the speed signal, the continuity of a time signal, a speed limiting value method and an acceleration limiting value method; calculating the lasting time of problem data of invalid positioning, speed loss, speed over-limiting and acceleration over-limiting; judging whether the singularity data can be modified or not according to the lasting time; if the singularity data can be modified, modifying the singularity data, and if the singularity data cannot be modified, rejecting the whole group of testing data. By adopting the method, the influence that the validity of the whole testing data is reduced because of a small number of singularity data is eliminated, original data are reconstructed, the validity of the testing data is improved, the uncertainty in the process that the singularity data in the vehicle speed signal are recognized according to subjective judgment and experience and knowledge of people is solved, the accuracy and the efficiency in recognition are improved, and the vehicle speed signal recognition and modification can be repeated.