Automated periodic surveillance testing method and apparatus in digital reactor protection system

The present invention discloses an automated periodic surveillance testing method and apparatus in a digital reactor protection system, and more particularly, to an automated periodic surveillance testing method and apparatus. The automated periodic surveillance testing unites a passive testing means with an active testing means, wherein the passive testing means unites a hardware self-diagnosis with an on-line state comparison function to be continuously executed when the digital reactor protection system runs, the active testing means is a test executed by an external testing apparatus, which belongs to an automatic logic test and the like. The passive testing means such as the hardware self-diagnosis and the on-line state comparison function can be used in the situation that assemblies constituting the digital reactor protection system or failure modes related to functions are explicitly defined, and the active testing means such as the automatic logic test can be used for non-perceptible faults which can