Anti-pinch system applied to track traffic platform

Abstract

The invention relates to an anti-pinch system applied to a track traffic platform. The anti-pinch system applied to the track traffic platform comprises a light curtain module and a master control module. The light curtain module used for gap scanning is arranged between a platform screen door and trains. The master control module controls the trains to draw out of the station according to the scanning result of the light curtain module. The light curtain module comprises at least two pairs of sensing devices which are arranged from bottom to top. The platform screen door comprises a movable door and a fixed door. From the low level to the high level, the gap protection safety level of the anti-pinch system is divided into a safety level I, a safety level II and a safety level III. The safety level of the distance between the center line of probe beams of the sensing device and the trains and the distance between the center line and the movable door is not lower than the safety level II. The safety level of the distance between the center line of the probe beams and the fixed door is not lower than the safety level III. The design of the anti-pinch system adopts different safety levels according to the differences between adults and children, between the movable door and the fixed door and between the straight-line platform and the curve platform, and has high detection reliability.

Description

technical field [0001] The invention relates to obstacle detection technology, in particular to an anti-pinch system applied to rail transit platforms. Background technique [0002] In rail transit operation, according to the boundary standard, a certain gap must be kept between the train and the screen door to ensure that the train can safely pass through the area under specified conditions. If a passenger is stranded in the gap, the train will start to threaten his life. Therefore, installing a light curtain device between the screen door and the train gap can achieve the purpose of anti-clamping and protecting the safety of passengers. [0003] In order to improve safety, the screen doors of rail transit platforms have widely used obstacle mechanical detection, infrared detection and other technologies. Obstacle mechanical detection means that when an obstacle exists and the sliding door is blocked from closing, the monitoring mechanism can detect the existence of the o...

AI Technical Summary

Problems solved by technology

When the size of the obstacle is small, the obstacle mechanical detection may have the risk of missing detection. At this time, if a child or other object enters the gap, the obstacle mechanical detection system cannot detect it and a major accident will occur when the train continues to start

[0004] However, the infrared detection technology has the following defects: in order to improve the detection accuracy, it is necessary to install an infrared detection sensor with a large coverage area on the side of the track of the sliding door, which requires a certain installation space and a larger gap, otherwise the detection is not thorough or exceeds the limit, and if you want to To scan the entire space, the cost of using a light curtain is high, and there is no infrared detection and anti-pinch device that treats adults and children, straight platforms and curved platforms differently in the prior art

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