Abstract
The inspection of SG (Steam-Generator) tubes in a NPP(Nuclear Power Plant) is a time-consuming, laborious, and safety-critical task because of several serious constraints including a highly radiated working environment, tight task schedule, and the need for many highly qualified human inspectors. In order to realize this kind of safety-critical and complex inspection using the Internet, intelligent agents based on Java distributed technologies were designed. The proposed agent architecture, which is a declarative commanding concept based on a layered architecture, was introduced to minimize the affect of Internet latency and maximize the reliability of an inspection system using tele-operation via the Internet.