Researches in Blockchain Technology (BCT) and Internet of Things (IoT) are experiencing exponential growth in recent years. They are being witnessed as mainstream technologies that have the potential of revolutionizing our society. However, these two contain technologically unrelated in philosophies. This article has a special interest in exploring how BCT and IoT can benefit in innovating business models. The purpose of this work is to understand the state of the art how BCT can be utilized within IoT context to create secure decentralized architecture. IoT is not secure by design, making its applications vulnerable especially to security and privacy threats. This hinders the proliferation of IoT applications in a large scale. With BCT capabilities, BCT can be used as integral part that can solve many shortcomings of IoT applications. Thus, existing businesses can be improved, and new business models can be brought into reality. Eliminating the need of third parties to guarantee trust of business transactions is a significant value towards business innovation in many areas, such as digital supply chain, vehicular systems, surveillance systems, and the creation of new business models, e.g. sharing economy, local energy trading, smart city, to name but a few. In an effort to understand the state of the art, this article (1) highlights intrinsic characteristics of IoT, (2) describes BCT modes and their characteristics to be considered for IoT integration, (3) presents a comprehensive survey on business opportunities based on the usage of BCT and IoT from a wide variety of literatures, (4) analyse strengths and weaknesses, and (5) discusses research possibilities that can be a solution to the problems. This paper will serve as a good starting and reference point to new researchers or those who are interested in adopting these technologies in businesses.

近年来，对区块链技术（BCT）和物联网（IoT）的研究正在经历指数级增长。它们被视为具有革命性潜力的主流技术。但是，这两个概念在技术上并不相关。本文特别关注探索BCT和IoT如何在创新业务模型中受益。这项工作的目的是了解最新技术如何在物联网环境中利用BCT来创建安全的分散式架构。物联网在设计上并不安全，因此其应用程序特别容易受到安全和隐私威胁的攻击。这阻碍了物联网应用的大规模扩散。借助BCT功能，BCT可以用作解决IoT应用程序许多缺点的组成部分。从而，可以改善现有业务，并可以实现新的业务模式。在许多领域，例如数字供应链，车辆系统，监视系统以及创建新的商业模式（例如共享经济，本地能源交易），消除第三方对保证商业交易信任的需求都是一项重大价值。 ，智慧城市，仅举几例。为了了解最新技术，本文（1）着重介绍了IoT的内在特征，（2）描述了BCT模式及其在IoT集成中应考虑的特征，（3）提出了基于大量文献中BCT和IoT的使用情况，（4）分析优缺点，（5）讨论了可以解决这些问题的研究可能性。本文将为新研究人员或有兴趣在企业中采用这些技术的人员提供一个良好的起点和参考点。