A top-mounted foreign object detection system between the subway platform door and the car door

Abstract

The invention provides an overhead type impurity detection system between subway platform doors and vehicle doors. The overhead type impurity detection system comprises a door control circuit connected into a safe circuit of the platform doors. The door control circuit comprises door control devices which are arranged corresponding to all the platform doors, are sequentially in series connection and comprise laser scanning sensors and control units. The laser canning sensors are arranged above the platform doors. The scanning ranges of the laser scanning sensors are the spaces between the platform doors and the vehicle doors. The laser scanning sensors are in communication connection with the control units and are mounted below concrete top beams, influence of a limit is small, the detection area can be flexibly adjusted, the requirement that any position between two doors can be detected is met, dead-corner-free three-dimensional area protection is achieved, and any object with the diameter being larger than 8 mm between the platform doors and the vehicle doors can be detected.

Description

technical field [0001] The invention relates to a foreign matter detection system, in particular to a top-mounted foreign matter detection system between a subway platform door and a train door. Background technique [0002] As an isolation device between the track area and the platform area, the platform door plays a very obvious role in ensuring operational safety and energy saving. Nowadays, platform doors have been widely used as essential equipment in subway lines in various cities in China. But at the same time, in order to ensure driving safety, the installation position of the platform door on the platform (the distance from the center line of the track) should strictly follow the limit requirements. [0003] According to the "Subway Design Code", the net distance between the sliding door body of the platform door and the vehicle contour line (without opening the door) should be 130mm when the vehicle uses a plug door. +15 -5 ; When the station uses built-in doors ...

AI Technical Summary

Problems solved by technology

At present, the detection system of the through-beam method that is applied is affected by the limit size and cannot meet the detection of this area, and there is a detection blind spot. Therefore, it is very necessary to use a top-mounted foreign object detection system that is not affected by the limit size.

Images