Rail transit monitoring system and method

Abstract

The invention provides a rail transit monitoring system and method. The system comprises a plurality of monitoring alarm terminals, a data exchange module and a vehicle-mounted terminal which are arranged along a track; each monitoring alarm terminal comprises a plurality of image acquisition modules, a plurality of light alarm modules and a first processing module; all the first processing modules are connected and communicated through the data exchange module; each first processing module is used for identifying whether foreign matter invasion exists in the image output by an image acquisition module or not, and transmitting an alarm signal to the first processing module of the monitoring alarm terminal in front of or behind the monitoring alarm terminal when the foreign matter invasionexists, so that the light alarm module in a first distance range in front of or behind the monitoring alarm terminal sends a light alarm signal; the vehicle-mounted terminal comprises an optical receiver located at the head of the train and a second processing module. The system sends out a light alarm signal through each light alarm module, does not depend on a signal system to transmit the alarmsignal, and can still effectively transmit the alarm signal and improve the driving safety when a signal communication system breaks down or in a tunnel or other scenes with poor communication quality.

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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