Tmcas:an Mqtt Based Collision Avoidance System For Railway Network

Rail is a convenient, economical, and widely used transport system for transferring passengers and goods all around the world. However, ‘Safety’ has been one of the most significant concerns of Railway Systems. With the tremendous improvement in the IoT, signaling system, and tracking technologies, the number of train accidents has lowered down over the past few years; still, the numbers are on an alarming level. Most of the current anti-collision systems use the fusion of RFID data, GPS sensor, Inertial Sensors, odometers, etc. to detect the exact position of a train on the track networks and get this data exchanged between the trains and transmitted to the central control room for necessary actions. In this paper, we propose an anti-collision system named "TMCAS" (Train Monitoring and Collision Avoidance System) that uses MQTT protocol to share and exchange position, speed, the signal at danger information between trains and central control room. TMCAS aims to automate train operations and act as a safety enhancement system by ensuring speed control, rear-end and head-on collision avoidance, and signal-at-danger avoidance. The concept and algorithm presented in this paper can be modified to fit into different real-time implementation needs or use cases.