Evaluating Reliability of a Multi-fleet with a Reserve Drone Fleet: : an Approach and Basic Model

A matrix of drone fleet reliability assessment attributes is presented. Policies of failed drone recovery by redundant drones are formulated. A structure of a multi-fleet, consisting of main drone fleets and a reserve drone fleet, is suggested and described by means of the matrix attributes. A reliability block diagram for the multi-fleet is built. Based on the diagram, equations for probability of the multi-fleet failure-free operation, taking into account the reserve drone fleet structure, is obtained. Using the obtained recurrent equations, reliability models for the multi-fleet with the reserve drone fleet are developed and examined.