Method and device for automatic detection of foreign objects between screen doors and trains of straight-line subway platform

Abstract

The invention discloses an automatic detection method and a device of foreign bodies between a linear subway platform shielded gate and a train. Main components comprise a light band, a camera, a display and a computer system. The light band is arranged on a gap belt between the train and the platform shielded gate at the end of the platform. The camera is arranged on an unoperated position of a head of the train or a platform of the front. The camera and the light band are conplane. The camera shoots gap images and light band images between the shielded gate and the train, sharpness of the gap images are strengthened through image processing techniques, the foreign bodies in a gap are detected, and results are sent to a driver and a subway system through the display. Real-time high definition gap images and foreign bodies detection results are provided, and system reliability is improved. The driver has no need to get off and can finish detection tasks, stopping time is reduced, and subway operating efficiency is improved. Artificial detection manners are kept completely, and therefore even though a detection device has a breakdown, normal operation of the subway cannot be influenced.

Description

technical field [0001] The invention relates to a method for detecting whether there are obstacles between a train and a platform, in particular to a method and a device for automatically detecting obstacles between a screen door of a straight subway platform and a train. Background technique [0002] With the continuous and rapid development of urban subways, some new problems have gradually emerged. Due to the large volume of subway traffic, its stations are often places where a large number of people gather and transfer, and ensuring the safe travel of passengers has become the primary goal of subway operations. In order to ensure the safety of passengers and prevent accidents in the case of a large number of crowded passengers, a screen door is usually installed between the subway platform and the train, that is, a barrier with a door that is convenient for passengers to ride. The installation of screen doors on the subway platform is a necessary facility in the constru...

AI Technical Summary

Problems solved by technology

However, since the detection distance is about 150 meters, the spot at the laser receiver will be larger, so the distance between each group of laser transmitters and laser receivers must be relatively large, and there is a large range of detection blind spots. It is also difficult to accurately detect, and in addition to the requirements of train safety limits, there is no suitable long-distance laser detector product with small size at present.

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