Onboard Active Obstacle Detection System for the Area Directly Related to Train Running and Its Application
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 9
Abstract
Objective In order to solve the lag problem of current passive detection methods in detecting the obstacles in the area directly related to train running (hereinafter referred to as train running area or TRA), reserve more reaction time for train braking, reduce the incidence of train accidents, and mitigate the consequence of the train accidents, it is necessary to study the onboard active TRA obstacle detection technology. Method Through uniting the combination of multiple sensors and detection sub-tasks with the train signal system units, an active onboard detection system is proposed to actively detect whether there are obstacles intruding in the TRA boundary. Through testing the above system in the straight TRA with different obstacles, the effective identification distances of the obstacles are obtained. Result & Conclusion The above system can provide the train with autonomous perception ability, timely sending alarm messages or starting train braking when obstacles intruding in the boundary appear in the front TRA.
Authors and Affiliations
Xiuying YANG, Mingzhe WU, Yubin SHI, Yun LI, Jian XU, Dewei LIU, Jianyong XU
Comparative Analysis of Calculated and Experimental Current Carrying Capacities of Rail Transit Aluminum Alloy Conductive Rails
Objective AAC (luminum alloy conductive) rails are widely used in rail transit power supply systems. However, a significant deviation often exists between the calculated and tested values of the permissible current carry...
Applicability of Passenger Flow Distribution Calculation Model in Urban Rail Transit Based on Passenger OD Travel Time
[Objective] Targeting the phenomenon of deviation between the passenger flow calculation results by current network passenger flow distribution calculation model in urban rail transit and the actual data, the applicabili...
Air Defense Scheme of Airside MRT Vehicle Base in Shanghai Pudong International Airport
Objective The air defense control mode for airside MRT(mass rapid transit system) vehicle base of the airport directly affects the airport air defense safety and vehicle maintenance efficiency. Incorporating Pudong Int...
Lightning Test and Simulation Research for Medium-speed Maglev Train
Objective When medium-speed maglev trains operate on elevated tracks, the carbody is susceptible to lightning strikes. If composite materials are adopted for medium-speed maglev train carbody, damage or even penetration...
Analysis of Pantograph Key Parameters Suitable for 200 km/h Train Overhead Rigid Catenary
Objective The compatibility between the ORC (overhead rigid catenary) and the pantograph directly affects the current collection performance of the PC (pantograph-catenary) system. As the train operational speed levels a...