Time flies, winter goes to spring, and in a blink of an eye, three years of graduate life has passed by in a hurry. On the occasion of the publication of this paper, I sincerely thank Sun Yat-sen University for training me in the past seven years, all the good teachers for their teaching and guidance, and many friends for their concern and help.

I am grateful to my tutor, Professor Yu Zhi, for teaching and guiding my study and scientific research in the past three years, providing me with a good learning environment and working conditions for scientific research. At the same time, Mr. Yu's quick thinking, profound knowledge and rigorous academic attitude have given me a lot of beneficial influences, so that I have not only learned professional knowledge, but also learned a lot about being a man.

Thanks to my tutor, Mr. Deng Yuanchang, I have learned too much from Mr. Deng in the past three years. His excellent qualities such as intelligence, humor and preciseness always influence and guide me. In addition, the topic selection and experimental work of the paper were completed under the careful guidance and strict requirements of Teacher Deng. Thanks to Deng's love, I have made great progress in all aspects in just three years.

Thanks to Sister Zeng xx, Sister xxx, Sister xxx, xxx, xxx, xxx, XXX of Wind Energy Group. I will never forget the warmth and happiness of countless days and nights I spent with you.

I sincerely thank the leaders, teachers and classmates of Institute of Technology and Intelligent Transportation Research Center for their guidance and help in my study and life, especially the teachers of Intelligent Transportation Research Center for their profound knowledge, rigorous academic attitude, rich academic thoughts and earnest and enthusiastic attitude towards life, which have greatly inspired and helped me and benefited me for life.

During my three-year postgraduate life, my classmates and friends who majored in traffic information engineering and control who studied and lived together also gave me selfless help and care. I want to thank all of them.

Thanks to my parents and family, you have nourished my life; Thanks to those who love me, you have warmed my life; Thanks to the people I love, you have extended my life.

Thanks to all the people who have appeared or will appear in my life, no matter whether they bring me happiness or sadness, they will turn into unique music and enrich my life.

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