Indoor navigation is an important daily task in a variety of contexts (e.g., offices, hospitals, airports). However, navigational ease is not always considered when buildings are designed, making wayfinding a difficult and frustrating experience. Moreover, existing solutions are expensive, highly specialized, or both. In this work, we examine how a system of connected low-cost displays designed as an open API can be leveraged to guide users to their destinations quickly, easily, and with minimal cognitive load. Following a formative survey (N=58), we designed: (i) a system of linked, low-fidelity indicators, (ii) a novel map ingestion mechanism for quick and easy deployment, and (iii) a framework for controlling and interacting with an ecosystem of mixed-fidelity devices. We then evaluated our system through a controlled user experiment (N=18) that explores the impact of indicator density and route complexity on performance. Our work shows low-cost embedded indicators can improve indoor navigational experiences by delivering many of the same benefits as more costly solutions, we argue that such indicators would complement existing navigational solutions in a mixed-fidelity ecosystem, and we discuss use-cases as well as design recommendations for deploying similar systems.

室内导航是各种环境（例如办公室、医院、机场）中的一项重要日常任务。然而，在设计建筑物时并不总是考虑导航的便利性，这使得寻路成为一种困难和令人沮丧的体验。此外，现有的解决方案昂贵、高度专业化，或者两者兼而有之。在这项工作中，我们研究了如何利用设计为开放 API 的连接低成本显示器系统来快速、轻松地将用户引导到他们的目的地，并以最小的认知负荷。经过形成性调查（N=58)，我们设计了：(i) 一个链接的低保真指标系统，(ii) 一种用于快速轻松部署的新型地图摄取机制，以及 (iii) 一个用于控制混合生态系统并与之交互的框架保真设备。然后，我们通过受控用户实验 ( N = 18)评估了我们的系统，该实验探索了指标密度和路线复杂性对性能的影响。我们的工作表明，低成本嵌入式指标可以通过提供许多与更昂贵的解决方案相同的好处来改善室内导航体验，我们认为这些指标将补充混合保真生态系统中现有的导航解决方案，我们还讨论了用例作为部署类似系统的设计建议。