Preface

2021 4th International Conference on Mechatronics and Computer Technology Engineering (MCTE 2021) has been held successfully on October 15-17, 2021. Due to the COVID-19 pandemic around the world and with the strict travelling rules in China, it is still difficult to take international travel for our attendees abroad. Therefore, MCTE 2021 was held both in physical (Xi'an, China) and online (Zoom). The conference mainly focuses on mechatronics, computer technology engineering, computer science and other research fields, aiming at providing a platform for experts, scholars, engineers and technical researchers engaged in mechatronics, computer technology engineering and computer science research to share scientific research achievements and cutting-edge technologies, understand academic development trends, broaden research ideas, strengthen academic research and discussion, and promote cooperation in industrialization of academic achievements. Experts, scholars, business people and other relevant personnel from universities and research institutions at home and abroad are cordially invited to attend and exchange. During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 5-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches. There were 90 individuals who attended this hybrid conference. List of Committee member is available in this pdf.