| dc.description.abstract | According to the Directorate General of Highways (MOTC) of Taiwan, the average life span of bridges in Taiwan is 34 years old. Even human bodies need regular health checks, let alone structures we use regularly, which can wear out as times pass, or exceed service life, or structure collapse due to insufficiency of expected design. However, the traditional inspection methods are most often confine to single-construction inspection using wire to transmit data, which will pose difficulty on bridges, flats such large scale structures. With the rise of the Internet of Things and the revolution of Industry 4.0, the use of multi-sensor deployment monitoring the equipment conditions and environmental parameters with wireless transmission and cloud technology with from various source, to achieve customization automation mode, and to optimize the operational process and efficiency.
This research will follow the spirit of industry 4.0, combining Building Information Modeling(BIM) 3D simulation and Internet of Things to an intelligent structure safety detection system, develops and integrates Smart Tag and LoRa (Long Range Wide Area) into wireless smart strain detection devices. Through the low-energy embedded system integrates various sensing data and transmits it to the mobile gateway (Mbed based Moving Gateway) wirelessly through LoRa and complete the preliminary structure of the health and safety inspecting Internet of Things (IoT) framework, and use the Message Queuing Telemetry Transport (MQTT) publishing and subscription mechanism to build a real-time data monitoring network application program interface on the Node-Red development tool platform (Web UI), and then use MySQL cloud database to collect all real-time data. To validate the actual results of the IoT framework and the wireless wake-up smart strain detection device, this paper designed a beam on the inner steel bar and the outer concrete to bond the strain gauge. The information model was created by Autodesk Revit and combined with the Dynamo visual design platform to real-time sensed data. Then import it into the model for subsequent analysis and become a dynamic building information model (BIM). By using IOT technology to interact with BIM makes it possible to inspect swiftly and intuitively the health status of structural members in the future periodical detection, maintenance, and operation phases. | en_US |