1995 presided over the successful development of the first domestic network router, which promoted the national security and information industry.
Industrialization of heart products. He took the lead in developing active service and transparent computing research in the world, and put forward the transparent computing theory and method of expanding Von Neumann's structure, information storage, operation and management in time and space. Based on this theory, he successfully developed a kernel distributed operating system and an operating system-free transparent computing terminal, which were widely used in China's military, commercial, educational and management fields, and attracted the attention of academic circles at home and abroad, and were regarded as original academic achievements "before and including cloud computing" by foreign counterparts.
In the aspect of network basic theory, an interactive protocol synthesis method called "Zhang's method" by American colleagues is put forward, which promotes the development and progress of network basic theory. The first winner won the second prize of national technological invention and the second prize of national scientific and technological progress; He has won the IEEE AINA07 Best Paper Award, Li Science and Technology Progress Award, Education Leadership Award of Education Foundation and Meritorious Award of Asian Open University Federation. He has written 8 monographs and textbooks in Chinese and English, among which "Computer Operating System Course" has sold more than 6,543,800 copies, making it one of the main textbooks in the domestic computer field.
He presided over the completion of a number of national scientific research, international cooperation and major industrialization projects. The first finisher won the second prize of national technological invention 1 item, two second prizes of national scientific and technological progress, and five provincial and ministerial prizes.
The main research direction is transparent computing and active service. Transparent computing mainly studies how to solve the problem that users use different operating systems and related applications through the same terminal platform on the network, and use the same operating system and related applications on different terminal platforms. Active service is a computing method that evolves the existing services through computers according to the needs of users, so as to provide network services that meet the needs of users as much as possible.