In the current hyper-connected, data-driven era, smart devices are providing access to geolocation information, enabling a paradigm shift in diverse domains. Location proof systems utilize smart devices to provide witnessed proof of location to enable secure location-based services (LBS). Applications of location proof systems include safety, asset management and operations monitoring in health care, supply chain tracking, and Internet-of-Things (IoT)-based location intelligence in businesses. In this paper, we investigate the state of the art in location proof systems, examining design challenges and implementation considerations for application in the real world. To frame the analysis, we have developed a taxonomy of location proof systems and performed a comparative analysis over the common attributes, highlighting their strength and weaknesses. Furthermore, we have identified future trends for this increasingly important area of investigation and development.

中文翻译：

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智能物联网的位置证明系统：需求，分类法和比较分析

在当前的高度连接，数据驱动的时代，智能设备可提供对地理位置信息的访问，从而实现了多种领域的范式转变。位置证明系统利用智能设备提供见证的位置证明，以实现安全的基于位置的服务（LBS）。位置证明系统的应用包括医疗保健中的安全性，资产管理和运营监控，供应链跟踪以及企业中基于物联网（IoT）的位置智能。在本文中，我们研究了位置证明系统中的最新技术，研究了设计挑战以及在实际应用中的实现注意事项。为了进行分析，我们开发了位置证明系统的分类法，并对常见属性进行了比较分析，突出了它们的优缺点。