Journal of Information Technology Services (한국IT서비스학회지)

Korea Society of IT Services (한국IT서비스학회)
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Implementation of the Industrial Hazard Detection System using LoRa Network

LoRa 통신기반 산업재해감지시스템 구현

  • Received : 2019.02.01
  • Accepted : 2019.03.27
  • Published : 2019.03.31
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Abstract

To protect workers from industrial accidents, IoT hazard detection system using LoRa network was designed and fabricated. LoRa networks can operate with low power consumption, wide coverage, and low usage fees. The hazard detection system consists of a sensor unit, a transceiver module, a LoRa base station, ThingPlug, and a monitoring device. We have designed an optimal risk-determining algorithm that can send information quickly in a working environment. As measured by TTA, the implemented system has been found to be able to deliver the worker's location, ambient temperature, and carbon monoxide density to the administrator through the user interface. The implemented system showed a bit rate of 290bps and a maximum application range of 6 km.

Keywords

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LoRa Modulator

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Configuration of the Proposed Industrial Hazard Detection System

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Block Diagram of the Transceiver Part of LoRa Network

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Flowchart of Data Processing

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Designed Screen for Data Monitoring

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Photograph of the Implemented Transceiver Part

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Output Power of the Transceiver Part

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Configuration of the Testing Environment

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Configuration for Data Processing Test of the Transceiver Part

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Transmitting Data of the LoRa Module

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Monitoring of the Output Data of the ThingPlug

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Received Log Data of the Monitoring Part

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Monitoring Screen of the Hazard Detection System

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Long Distance Communication Test Setup of LoRa Module

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Measured PER of the Hazard Detection System

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Test Setup to Verify Alarm Operation

Standard of LoRa in Korea

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The Relationship between Bit Rate and Receive Sensitivity with Different Spreading Factor

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Designed Results of the Industrial Hazard Detection System

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Specifications of the LoRa module

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Calculated Receiving Power at LoRa base Station

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Performance Test Results of the Proposed Industrial Hazard Detection System by TTA

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