Guan Xinping and Chen Cailian cooperated with Professor Feng Gang and Dr. Sun Dong from the City University of Hong Kong to complete a series of research projects. Guan Xinping and Chen Cailian are colleagues. Dr Chen Cailian and Professor Guan Xinping are both teachers of Yanshan University. Both of them are winners of the National Science Fund for Distinguished Young Scholars. Both of them are cutting-edge talents in the field of automation.