Spacecraft State Description Markup Language

The diagnosis of a spacecraft´s state of health is an important part of the ground system of spacecraft flight control mission. However spacecraft is an integrated structure of several very complex systems. The diagnosis knowledge of spacecraft health is with uncertainty, subjective experience usually and frequently need to be maintained. Thus, it is difficult to make the raw state diagnosis knowledge becoming the regular identified by computer. This paper presents Spacecraft State Description Markup Language (SSDML), which is a special language designed to meet requirement of spacecraft state diagnosis expert system. The language is mainly used to describe the raw knowledge of spacecraft state diagnosis. It adopted the object-oriented designing thought and could easily realize the full description of spacecraft state knowledge.