Abstract
The Government of Japan has declared that construction sites must implement i-construction, in which information communication technology (ICT) is used to improve construction site productivity and throughput. Examples of i-construction include remote and automatic control systems for construction machinery, for which wireless communication is generally required; however, the wireless characteristics that must be considered in i-construction remain unclear. To clarify these characteristics, Bluetooth Low Energy (BLE) beacon module is implemented for construction machines, and we investigate its communication characteristics. We focussed on two evaluations: characterisation of the BLE unit module and its feasibility in i-construction. Experimental results were used to characterise BLE communication in a residential area and construction site. In the latter, BLE beacon module communication was possible between a sender located in an excavator attachment and a receiver in its cabin.
Highlights
An earlier version of this paper was presented at the 12th International Workshop on Autonomous Self-Organizing Networks (ASON 2019) [1]
The Received Signal Strength Indicator (RSSI) was approximately -95 dBm. From these results, when the excavator was in the Highest posture, communication could not be established at a beacon module communication distance of 10 m
We evaluated the Bluetooth Low Energy (BLE) communication characteristics with the magnetic field effect taken into consideration under three magnet operational patterns (Fig. 21):
Summary
An earlier version of this paper was presented at the 12th International Workshop on Autonomous Self-Organizing Networks (ASON 2019) [1]. In 2015, the Ministry of Land, Infrastructure, Transport, and Tourism of Japan declared that construction sites must drastically introduce information and communications technology (ICT) to improve productivity and throughput throughout the construction site [2] One of the standard wireless communication protocols for IoT systems is Bluetooth Low Energy (BLE) [6]. In order to clarify this point, this paper examines the communication characteristics of BLE in consideration of the working area for different construction machines. We used a BLE beacon module as the communication device.
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