Test devices unified access model in spacecraft automatic test

Spacecraft test language should support the unified access of test equipment, that is, how the spacecraft test language provides the language structure and statements to support the unified access of test equipment in test process is an important research direction. The difficulties of the study lie in how to provide the corresponding grammar description and interpretation of enforcement mechanism in the test language to address the interface unified description, the operation unified description, the status monitoring and the access control of test equipment. To solve the above problems, a high-level object-oriented spacecraft test language is presented, abstracting the access of test equipment in the test process to the test equipment access expression, defining the unified test equipment access strictly with the operational semantics.