On the afternoon of April 1st, led by Prof. Guanglin Dai and Prof. Hongliang Ren, professors and researchers from College of Information Engineering, Zhejiang University of Technology visited our laboratory to carry out academic exchange activities. Professor Zhang Wei presided over the academic exchange meeting on behalf of the laboratory, warmly welcomed the colleagues from Zhejiang University of Technology and introduced the basic information of our laboratory. Then faculty members of our laboratory introduced the latest research progress. Prof. Dai and Prof. Ren expressed their gratitude for the arrangement of the exchange activities and hoped to further strengthen the contact and expand the cooperation with our laboratory. After the meeting, a laboratory tour was arranged for the guests and a heated discussion was launched on the subjects they were interested in.