The Principle of Increasing Reliability in The Operation of Electronic Craft-Equipment of Cyber-Physical Systems

This work is devoted to ensuring the reliability of electronic cyber-physical systems for responsible purposes, produced in a small series or even in a single copy. They implement ways of individual and collective generation of new ideas, creative solutions of various equipment. Such electronic equipment is called craft-equipment. The failure is the result of one of the performance characteristics of the craft-equipment going beyond the established limits of the tolerance. This occurs because of the gradual drift of the characteristic value due to the influence of external factors and aging. The research conducted by the authors has shown that, since the cyber-physical system is multifunctional, not all of its functional characteristics are in demand at the same time. This means that due to natural drift, an unclaimed characteristic can be configured so that at the beginning of its non-working period, its random value may be outside the tolerance field. During this period, the probability of performing work functions, if you suddenly need to use it, will be low. As a result of natural drift, the field of characteristic variations enters the working field of the tolerance of craft-equipment, i.e., performs its functions with high reliability. The authors called this setting as the principle of increasing reliability. In their work, the authors describe in detail the implementation of the proposed principle in the process of operation of electronic craft-equipment as a part of a complex cyber-physical system.