A Comprehensive Survey on the Maintenance 4.0 Technologies and its Applications

The fourth industrial revolution is based on the increased availability of digital technology and connectivity groups, leading to a fundamental reevaluation of manufacturing processes. One of the key factors that will ensure the success of the digital transformation of companies, and in particular, these manufacturing processes, is predictive maintenance. It increases machine life cycles, reduces downtime and its related costs, boosts quality, and increases production rates. This paper presents a comprehensive survey of maintenance 4.0 technologies and their applications, including their definitions as well as their application in maintenance. In addition, the advantages and limits of each technology have been cited. Since these technologies are complementary, how they can be integrated to promote smart maintenance is discussed.