INCREASING THE RELIABILITY AND FUNCTIONAL SAFETY OF THE AUTOMATED WATER SUPPLY MANAGEMENT SYSTEM

Abstract

In the article, a study was conducted and a method of increasing the probability of fault tolerance of automated water supply management was proposed. Increasing the functional safety and reliability of the water level control circuit in the tank, and therefore the automated system as a whole, was achieved due to the use of redundancy of the circuit elements. In the context of modern industry and everyday life, increasing the reliability and functional safety of automated control systems is an extremely urgent task. Automated systems have high requirements for reliability and fault tolerance. Therefore, at the stages of development, design and operation of automated systems, it is necessary to evaluate the parameters of reliability of functioning. To assess the probability of system failures, system reliability, and failure risks, the functional safety norms set forth in the IEC 61508, IEC 61511 standards are used. As a result of the conducted research, it was established that with the use of redundancy of elements of the water level control circuit in the tank, it was possible to achieve the value of the probability of failure-free operation contour above 0.95.