This article discusses a reliability evaluation method of sensors in multi-sensor control systems. Based on
performed analysis and research work a universal method for the credibility evaluation of information
from sensors was developed. The purpose of this method is to estimate a level of effectiveness of sensors,
assign a proper weight to them during the voting process and utilization in multi-sensor control systems
as a decision unit. The Sensor Reliability Evaluation Method for estimation of credibility coefficients pro-
cesses results of a decision module, which, on the other hand, uses credibility coefficients evaluation of
participating voters to reach a right verdict. In this case, the voting process takes a form of a weighted
voting system. The method can be also used to identify sensors with some malfunctions. When a sensor
reliability falls to 0 or other declared value an alarm signal can be generated. In order to forward the tests
of the Sensor Reliability Evaluation Method a simulation was proposed. Presented results verify assump-
tions of described method and show high effectiveness of this solution