Smart security system for Indian rail wagons using IOT

This paper presents a wireless sensor network (WSN) for onboard monitoring of railway freight wagons, in which all the network nodes are energetically autonomous. Unlike the usual energy-harvesting WSNs, here it is proposed to supply not only the sensor nodes but also the sink node by means of an energy harvester, in order to realize independent networks for each wagon. This choice allows the overcoming of several issues related to a single network for the whole train, but it requires a significant reduction of the energy consumption of the power-hungry sink node. In order to reduce the energy consumption to values sustainable by energy harvesters without penalizing the quality of service, this paper proposes a bi-periodic communication scheme for the local wireless transmission, a dynamic management of the GPS receiver, and a consumption model of the GPRS transceiver, which allows an optimized management of the sleep modes. The proposed solutions are compared with the existing ones, and the theoretical predictions are validated by measurements on a system prototype under different operating conditions.

Fully Autonomous Wireless Sensor Network for Freight Wagon Monitoring

Today, the majority of wagon failures on railroad systems are because of the poor maintenance of ball bearings, which causes emergent stops and delays. The existing stationary detectors, lack in predicting failures which cause troubles in scheduling maintenance. During the fall of 2011, a trial was performed by applying a wireless sensor network (WSN) aboard a train wagon with the objective to demonstrate a proof of concept for monitoring the temperature of ball bearings aboard the train wagon. This trial investigates several key aspects when applying sensor networks such as radio wave propagation, energy scavenging and performance of the WSN aboard the wagon. Two wireless links were used in the WSN. The aboard network communicates at 2.45 GHz, and the external communication is an 868 MHz radio frequency identification radio link. Since the energy in the WSN node is limited, appropriate energy scavenging devices are also presented and evaluated in a lab environment. Effort has been made to overcome these problems. The energy consumption in the network is still a problem; the most promising energy scavenging technique is piezoelectric harvesting by vibrations, which in the experiments scavenged 2.32 mW.

Smart security system for Indian rail wagons using IOT

References

Fully Autonomous Wireless Sensor Network for Freight Wagon Monitoring

Field operational testing for safety improvement of freight trains using wireless monitoring by sensor network

Related Papers (5)

Review of Vehicle Surveillance Using Iot in the Smart Transportation Concept

IoT based Smart Passenger Surveillance System for Airport

Smart Vehicle Technology Based on ITS

An Intelligent Transportation System using Wireless Technologies for Indian Railways

IoT cloud platform for information processing in smart city