Abstract: Virtual instruments is the main development direction of automatic measurement technology now and in the future. Virtual instruments which can reduce experiment cost, solve room shortage, share software and instruments, realize long-distance control, has strong advantages comparing to traditional instruments. The construction of Internet virtual instruments of pilpeline system, which can offer a basic method for research on pipeline system, has important significance on improving measurement and control level, work efficiency and resource sharing.

Key words: pipeline system, virtual instruments, network lab, PXI