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With the increasing complexity and digitalization of the built environment, the need for barrier-free accessibility of buildings in relation to assistive devices is one of the remaining challenges towards navigation. Orientation in complex buildings currently relies on analogue information such as signs and emergency plans. There is a lack of centimetre accurate visual and audible guidance systems. In this study, a centimetre-accurate wireless electronic Guidance Device “eGuiDev” based on Ultra High Frequency Radio Frequency Identification (UHF RFID) technology is developed to assist visually impaired and mobility-limited people with pedestrian navigation. We defined the requirements for UHF technology based on the compactness of smaller planar antennas with a high bandwidth (892–940) MHz. Thus, we investigated an electronic reader consisting of UHF RFID components such as antenna, reader module, microcontroller and, for wireless communication, Bluetooth module, integrated into a guidance device. These electronic components can be embedded in a 3D printed, human-operated white cane with a handheld device that guides the user to the desired RFID tagged targets. Passive tags are integrated into the flooring. However, the focus of this paper is on the development of the multifunctional device, the components and the implemented algorithm. A literature review presents the basis for identifying suitable components for the implementation of a passive RFID system. Serial interfaces have been used to enable communication between the microcontroller, the RFID reader and other smart devices via the Bluetooth Low Energy standard. The “eGuiDev” features low power consumption, a 2600 mAh lithium battery and USB Type-C for recharging the battery. The reader emits a vibration and audio signal when it reads passive transponder information, and communication with mobile phones can provide further information that are suitable for a navigation. This study shows that passive UHF RFID components enable navigation with centimetre accuracy.

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Development of an Electronic Guidance Device “eGuiDev” Based on Wireless Communication Technology for Pedestrian Navigation

  • 会议论文

  • 发表日期：

    2025年

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  • Abduaziz Juraboev,
  • Abdulrahman Othman,
  • Rüdiger Kern,
  • Joaquín Díaz,
  • Uwe Rüppel

摘要

With the increasing complexity and digitalization of the built environment, the need for barrier-free accessibility of buildings in relation to assistive devices is one of the remaining challenges towards navigation. Orientation in complex buildings currently relies on analogue information such as signs and emergency plans. There is a lack of centimetre accurate visual and audible guidance systems. In this study, a centimetre-accurate wireless electronic Guidance Device “eGuiDev” based on Ultra High Frequency Radio Frequency Identification (UHF RFID) technology is developed to assist visually impaired and mobility-limited people with pedestrian navigation. We defined the requirements for UHF technology based on the compactness of smaller planar antennas with a high bandwidth (892–940) MHz. Thus, we investigated an electronic reader consisting of UHF RFID components such as antenna, reader module, microcontroller and, for wireless communication, Bluetooth module, integrated into a guidance device. These electronic components can be embedded in a 3D printed, human-operated white cane with a handheld device that guides the user to the desired RFID tagged targets. Passive tags are integrated into the flooring. However, the focus of this paper is on the development of the multifunctional device, the components and the implemented algorithm. A literature review presents the basis for identifying suitable components for the implementation of a passive RFID system. Serial interfaces have been used to enable communication between the microcontroller, the RFID reader and other smart devices via the Bluetooth Low Energy standard. The “eGuiDev” features low power consumption, a 2600 mAh lithium battery and USB Type-C for recharging the battery. The reader emits a vibration and audio signal when it reads passive transponder information, and communication with mobile phones can provide further information that are suitable for a navigation. This study shows that passive UHF RFID components enable navigation with centimetre accuracy.