A rail transit monitoring system and method

Abstract

The invention provides a rail traffic monitoring system and method. It includes multiple monitoring and alarm terminals, data exchange modules and vehicle-mounted terminals arranged along the track; the monitoring and alarm terminal includes multiple image acquisition modules, multiple optical alarm modules, and the first processing module; all first processing modules are connected and communicated through the data exchange module The first processing module identifies whether there is a foreign object in the image output by the image acquisition module, and when there is a foreign object intrusion, the first processing module of the monitoring and alarm terminal at the front or the rear transmits an alarm signal, so that the first distance range at the front or the rear The optical alarm module in the vehicle sends out an optical alarm signal; the vehicle-mounted terminal includes an optical receiver located at the front of the train and a second processing module. The system sends out an optical alarm signal through the optical alarm module, and does not rely on the signal system to transmit the alarm signal. When the signal communication system fails, or in scenarios with poor communication quality such as tunnels, the alarm signal can still be effectively transmitted to improve driving safety.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a rail transit monitoring system and method. Background technique [0002] In the automatic driving technology of rail transit, the safety of the train is realized by automatic train protection system (Automatic Train Protection, referred to as: ATP). The ATP system consists of trackside equipment for automatic train protection, on-board equipment and interlocking equipment in the control area. It has the following disadvantages: it can only control the blocked area of ​​the train, but cannot detect foreign objects that suddenly enter the track area, such as pedestrians, equipment falling, landslides, etc.; at the same time, when the signal system fails and the ATP system is cut off, the vehicle The driving can only rely on the driver's manual driving and artificial lookout, which often leads to larger accidents. [0003] In order to make up for the inability to detect foreign objec...

AI Technical Summary

Problems solved by technology

It has the following disadvantages: it can only control the blocked area of ​​the train, but cannot detect foreign objects that suddenly enter the track area, such as pedestrians, equipment falling, landslides, etc.; at the same time, when the signal system fails and the ATP system is cut off, the vehicle The driving can only rely on the driver's manual driving and manual lookout, which often leads to major accidents

[0003] In order to make up for the inability to detect foreign objects intruding into the track area in real time in automatic rail transit automatic driving technology, in the existing technology, an image acquisition module is installed on the train to collect real-time images of the track in front of the train, and at the same time, millimeter-wave radar is added As the distance extension of obstacle detection, it achieves the purpose of replacing the ATP system. However, due to the complex operating environment of the rail train and the high speed of the train, it is impossible to accurately detect the invasion of foreign objects. For example, in the tunnel, due to the small turning radius, the image cannot be far away. Distance observation, rapid changes in ambient light conditions, affect the accuracy of obstacle detection

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