Identifying Anomaly Work in Intralogistics Using BLE and LPWA

Yamawaki, Masahiro; Yuasa, Noriko; Yoshimura, Yuki; Otsuka, Takanobu

doi:10.1007/978-3-030-79463-7_45

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…LPWA communication has less path loss even when performing long-distance communication compared to Random Phase Multiple Access (RPMA) communication or Long Term Evolution for machine-typecommunication (LTE-M) communication [23]. It is suitable for factory managers to use LPWA communication in their Our proposed method is an extension of the network system [24] developed by Yamaguchi et al The following sections describe the network system constructed in previous research.…”

Section: Proposed Methodsmentioning

confidence: 99%

“…The BLE module is used to notify users of lack of parts. By using the BLE module, the power consumption can be kept low, and it can be easily introduced into the previous system [24]. In the factory used for the experiment, the parts box and the parts rack have distance of about 50 mm to 100 mm.…”

Section: If the Distance Measured Inmentioning

confidence: 99%

“…First, we compared the moving distance of the parts supplier during the experimental periods. The moving distance was calculated as follows (mentioned in [24]):…”

Section: Comparison Of Moving Distancementioning

confidence: 99%

“…As a further study, the proposed method in the earlier system [24] was used to evaluate the work stagnation rate of the parts supplier. We calculated the daily steady activity distance obtained from the regression curve of the collected data and the moving distance every two minutes.…”

Section: Comparison Of Work Stagnation Ratementioning

confidence: 99%

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Parts Supply Support Method for Leveling Workload in In-Process Logistics

Yuasa

Yamawaki²,

Shima³

et al. 2023

IEICE Trans. Inf. & Syst.

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At manufacturing sites, mass customization is expanding along with the increasing variety of customer needs. This situation leads to complications in production planning for the factory manager, and production plans are likely to change suddenly at the manufacturing site. Because such sudden fluctuations in production often occur, it is particularly difficult to optimize the parts supply operations in these production processes. As a solution to such problems, Industry 4.0 has expanded to promote the use of digital technologies at manufacturing sites; however, these solutions can be expensive and time-consuming to introduce. Therefore, not all factory managers are favorable toward introducing digital technology. In this study, we propose a method to support parts supply operations that decreases work stagnation and fluctuation without relying on the experience of workers who supply parts in the various production processes. Furthermore, we constructed a system that is inexpensive and easy to introduce using both LPWA and BLE communications. The purpose of the system is to level out work in in-process logistics. In an experiment, the proposed method was introduced to a manufacturing site, and we compared how the workload of the site's workers changed. The experimental results show that the proposed method is effective for workload leveling in parts supply operations.

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Section: Proposed Methodsmentioning

confidence: 99%

Section: If the Distance Measured Inmentioning

confidence: 99%

“…First, we compared the moving distance of the parts supplier during the experimental periods. The moving distance was calculated as follows (mentioned in [24]):…”

Section: Comparison Of Moving Distancementioning

confidence: 99%

Section: Comparison Of Work Stagnation Ratementioning

confidence: 99%

See 2 more Smart Citations