Abstract Internet of things (IoT) and artificial intelligence (AI) are popular topics of Industry 4.0. Many publications regarding these topics have been published, but they are primarily focused on larger enterprises. However, small and medium-sized enterprises (SMEs) are considered the economic backbone of many countries, which is why it is increasingly important that these kinds of companies also have easy access to these technologies and can make them operational. This paper presents a comprehensive survey and investigation of how widespread AI and IoT are among manufacturing SMEs, and discusses the current limitations and opportunities towards enabling predictive analytics. Firstly, an overview of the enablers for AI and IoT is provided along with the four analytics capabilities. Hereafter a comprehensive literature review is conducted and its findings showcased. Finally, emerging topics of research and development, making AI and IoT accessible technologies to SMEs, and the associated future trends and challenges are summarised.

中文翻译：

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中小企业的人工智能和物联网：一项调查

摘要 物联网 (IoT) 和人工智能 (AI) 是工业 4.0 的热门话题。已经出版了许多关于这些主题的出版物，但它们主要针对大型企业。然而，中小型企业 (SME) 被认为是许多国家的经济支柱，这就是为什么此类公司能够轻松获得这些技术并使其运营变得越来越重要的原因。本文对人工智能和物联网在制造业中小企业中的普及程度进行了全面调查，并讨论了当前实现预测分析的局限性和机遇。首先，概述了人工智能和物联网的推动因素以及四种分析功能。此后进行了全面的文献回顾并展示了其发现。最后，总结了新兴的研究和开发主题，使中小企业可以使用人工智能和物联网技术，以及相关的未来趋势和挑战。