Traditional industry is experiencing a worldwide evolution with Industry 4.0. Wireless sensor networks (WSNs) have a main role in this evolution as an essential part of data acquisition and the way in which WSNs are powered is one of the main challenges to face, if the industry wants to achieve digital transformation. Energy harvesting technologies are one of the possible solutions to this challenge. The main purpose of this article is to present a novel method to taxonomize knowledge in the field of mechanical energy harvesting to enhance the use of energy harvesting technologies in industrial applications. The taxonomy is applied to rail axles in order to select the energy harvesting technology that is more appropriate for a specific location, demonstrating the potential of mechanical energy harvesting technologies (MEHTs) for the railway industry as a use case of the industrial environment.

中文翻译：

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扫描问题

传统工业正在通过工业4.0进行全球发展。无线传感器网络（WSN）作为数据采集的重要组成部分，在这一发展过程中扮演着主要角色，而如果该行业想要实现数字化转型，无线传感器网络的供电方式将是面临的主要挑战之一。能量收集技术是应对这一挑战的可能解决方案之一。本文的主要目的是提出一种新方法，用于对机械能收集领域的知识进行分类，以增强能量收集技术在工业应用中的使用。该分类法适用于导轨轴，以便选择更适合特定位置的能量收集技术，