Abstract
This paper shows two developed digital systems as an example of intelligent garage and maintenance that targets the applicability of augmented reality and wearable devices technologies to the maintenance of bus fleets. Both solutions are designed to improve the maintenance process based on verification of tasks checklist. The main contribution of the paper focuses on the implementation of the prototypes in the company’s facilities in an operational environment with real users and address the difficulties inherent in the transfer of a technology to a real work environment, such as a mechanical workshop. The experiments have been conducted in real operation thanks to the involvement of the public transport operator DBUS, which operates public transport buses in the city of Donostia—San Sebastian (Spain). Two solutions have been developed and compared against the traditional process: one based on Tablet and another one based on Microsoft HoloLens. The results show objective metrics (Key Performance Indicators, KPI) as well as subjective metrics based on questionnaires comparing the two technological approaches against the traditional one based on manual work and paper.
Highlights
This work targets the applicability of wearable/mobile and augmented reality (AR)technologies for maintenance of bus fleets
This paper shows two developed digital systems as an example of intelligent garage and maintenance that targets the applicability of augmented reality and wearable devices technologies to the maintenance of bus fleets
The results show objective metrics (Key Performance Indicators, KPI) as well as subjective metrics based on questionnaires comparing the two technological approaches against the traditional one based on manual work and paper
Summary
This work targets the applicability of wearable/mobile and augmented reality (AR). technologies for maintenance of bus fleets. Maintenance mechanics spent a valuable time reporting their activities, especially when unexpected reparations are accomplished These reports have the form of handwritten annotations that have to be manually typed into the maintenance system by another maintenance worker. The main goal of the WARM assistant is, on one side, the reduction of the time spent by the maintenance workers in paperwork activities and, on the other side, the augmentation, enrichment and completion of the information reported by the maintenance operators at the end of the maintenance task. The authors have tested two different technologies for the WARM assistant, one based on tablet and another one based on AR headset, that make feasible the concept of “intelligent garage and maintenance”, targeting the applicability of AR technologies to the maintenance of bus fleets.
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