Infrared safety protection system and method for lift car roof space operation

The invention discloses an infrared safety protection system and method for lift car roof space operation. The system adopts the structure comprising a thermal infrared human body induction sensor and overhaul relays, no special action is required before an overhaul person enters a roof, once a lift landing door is opened, the thermal infrared human body induction sensor senses human body infrared rays in specific wavelengths, the overhaul mode of a lift is enabled immediately, and the operation cannot be forgotten. The condition that the body of the overhaul person is cut by the lift due to accidental starting of the lift after the overhaul person enters the roof is prevented, the personal safety of the overhaul person is really protected, and potential safety hazards are eliminated. 本发明公开了红外电梯轿顶空间操作安全保护系统和方法。所述红外电梯轿顶空间操作安全保护系统，采用热红外人体感应传感器和检修继电器结构，检修人员进入轿顶前无需特殊动作，电梯层门旦打开，热红外人体感应传感器感应到人体特定波长红外线，电梯立即就进入了检修模式，不存在忘记操作的可能性。防止检修人员进入轿顶后，电梯意外启动导致检修人员身体受到电梯剪切，确实保护检修人员的人身安全，消除安全隐患。