本文简要介绍了目前地铁屏蔽门普遍采用的红外光幕及防夹挡板两种防夹人装置的工作原理和安装维护要点,就两种方式的造价和后期维护量进行了对比,列举两种方式存在的问题并提出改进措施。 This article briefly introduced the current subway screen door commonly used infrared light curtain and anti-pinch baffle two anti-pinch device working principle and installation and maintenance points, the two ways of the cost and the amount of post-maintenance were compared, to enumerate two Way problems and put forward improvement measures.