A shielding door obstacle detection method and system

Abstract

A shielding door obstacle detection method is characterized by firstly judging whether that scene is changed significantly after the image is taken; if the scene is changed significantly, the detection area in the taken image is compared with the detection area in the train sample image to determine whether an obstacle exists or not; if the scene is not changed significantly, the obstacle recognition model is used to identify whether an obstacle exists or not. The invention also relates to a shielding door obstacle detection system, comprising a camera arranged above a gap between the shielding door and a vehicle door, a data processing unit electrically connected with the camera, a data storage unit electrically connected with the data processing unit, and a background computer communicatively connected with the data storage unit through a network communication interface. The screening door obstacle detection method and the system adopt different recognition schemes according to the scene change situation, thereby effectively avoiding the influence of the scene change on the foreign object recognition and improving the accuracy of the obstacle recognition.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an obstacle detection method for a shielded door, and also to an obstacle detection system for a shielded door. Background technique [0002] In the subway platform, there is a gap of 25cm-30cm between the rail train and the screen door. This gap is enough to accommodate a person. When the train starts, if passengers or objects are caught in this space, it is easy to cause personal injury or vehicle damage. Therefore, an obstacle detection device must be added to prevent accidents from happening. At present, the obstacle detection sensing device used in the screen door usually adopts a photoelectric sensor. By installing a transmitting and receiving device between the screen door and the vehicles, the photoelectric signal is emitted by the transmitter, and the receiver detects the distance between the transmitter and the receiver. Whether there is a barrier between them, so...

AI Technical Summary

Problems solved by technology

However, when the platform screen door intelligent control method in this invention judges whether there is a foreign object, the images in the reference image library are fixed, and the environment around the platform is varied, and there are still renovations on the platform, so it is inevitable that the scene changes greatly. In this case, there will be a detection error

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