Redundancy Management in Homogeneous Architecture of Power Supply Units in Wireless Sensor Networks

Abstract

Wireless sensor networks (WSN) are one of the basic technologies using various Internet of Things applications especially in cyber-physical systems. The cyber-physical system is usually designed for autonomous functioning without direct participation and control by humans. Sensors usually have autonomous power supply from batteries, which is one of the critical factors in the life cycle of a network and requires additional attention of its fault tolerance. In the paper additional method for reliability improving of the sensors in cluster-based WSN with individual and common set of redundant batteries and dynamic management of redundant architecture with two levels of availability is proposed. Mathematical model of the sensor reliability is developed. Comparative analysis of redundancy effectiveness for developed and used structure of backup architecture of batteries in cluster-based WSN is performed.