Muddala Divya et al.; International Journal of Advance Research, Ideas and Innovations in Technology © 2019, www.IJARIIT.com All Rights Reserved Page |2044 ISSN: 2454-132X Impact factor: 4.295 (Volume 5, Issue 2) Available online at: www.ijariit.com IoT based bridge monitoring system Divya Muddala divyarajarao04@gmail.com Dr. D. Y. Patil School of Engineering and Technology, Pune, Maharashtra Dhanashree Kamble dhanshreek04@gmail.com Dr. D. Y. Patil School of Engineering and Technology, Pune, Maharashtra Pooja Nimbalkar poojanimbalkar101998@gmail.com Dr. D. Y. Patil School of Engineering and Technology, Pune, Maharashtra Ravina Patil ravinap621@gmail.com Dr. D. Y. Patil School of Engineering and Technology, Pune, Maharashtra Sathish K. Penchala sathish.penchala@dypic.in Dr. D. Y. Patil School of Engineering and Technology, Pune, Maharashtra ABSTRACT A bridge monitoring system is significant to the structural health monitoring of both old/new bridges and flyovers an infrastructure daily used by citizens of their respective countries. The following report is proposed and developed an architecture for bridge monitoring on a more secure level taking into consideration the various parameters that are involved in the structural health of bridges. A 3-level distributed structure is adopted in the monitoring system, which includes a central server, intelligent acquisition node, and local controller. Acquisition nodes are located across the bridge. One local controller manages all the acquisition nodes. Every acquisition node has 8 channels, which can easily and approximately sample the deviation of the line of sight, the vibration of the bridge due to a load of various transports and as well the water level which when cross a threshold lead to a flood. To get high precision data, a 10 bits A/D converter is being used. Compared to the traditional method, the proposed architecture has two features. The acquisition node is a smart device based on a powerful controller. Signals of field sensors are analyzed and real-time compressed in the acquisition node. Only the processing results are sent to the local controller through the IEEE 802.11 wireless network. This operation can relieve the load of a central server. The intelligent monitoring system has run on a large span bridge. Running results show that the proposed system is stable and effective. Keywords— Sensors [A.I.], Input/output and data communications, Microcontroller– Node MCU, M-7053D, tGW- 715. [Barrier Lifting] 1. INTRODUCTION This system detects a load of vehicles (high amplitude vibrations), water level, and deviation from the line of sight. If any of the water level, water pressure, vehicle load on the bridge and the line of sight deviates from its threshold value then it generates the alert through buzzer and auto barrier. At present, there have been various systems proposed but what makes the following proposed system different from the rest is making utmost use of the technology and various software modules which will along with the various detection based on parameters also notify the user if the bridge undergoes any damage. Whenever bridge undergoes any damage or even collapses, there is tremendous property loss as well as human life loss. One of the main reasons being the people being completely unaware of the condition of the bridge in their location. Technology being so wide, the users are still not notified about the condition of the bridges, if they can use the bridge or no. Currently, there have been some water level detectors but in existing system water level is checked manually. In this application, various parameters will be considered at both the ends of the bridge. To check the water level we the water sensor is being used i.e. if the water level crosses the set threshold limit then the bridge will not be allowed to use, to the user or the localities.The additional features that have been added in the proposed system are that if the water level crosses the threshold limit, if the line of sight deviates from its original measure or if high amplitude vibrations are detected on the bridge then immediately alert message will be broadcasted to the police station, municipal office and to the risk team. This implies that a prior measure is being taken to monitor the bridges and provide mere safety to the citizens. 2. LITERATURE SURVEY This project aims to simplify the system for selecting bridge tracking devices. Many bridges within India are obsolete or structurally deficient to safely increase the life of those bridges, the inspection would be vital. Bridge engineers have many duties and it's far not possible to expect one to know. Our device will sense the crack inside the bridge and signal might be given to govern rooms. The sensors and the LCD are interfaced with the Atmega. The sensors used are Flex. The value is set so that if there is any sort of tilt or little crack and if it crosses our set value then the crack is detected. [1]