The invention provides an automatic alarm device for people trapped in an elevator car. The automatic alarm device comprises a controller, a first sensor, a second sensor, an audible and visual alarm and a power supply, the first sensor and the second sensor are arranged inside and outside the elevator car respectively and electrically connected to the controller, the first sensor and the second sensor are used for detecting the concentration of carbon dioxide inside and outside the elevator car, the audible and visual alarm is electrically connected to the controller and used for alarming, the power supply is electrically connected to the power supply loop and used for supplying power to the controller, the first sensor, the second sensor and the audible and visual alarm, and the controller is used for obtaining an elevator stop signal and an elevator door closing signal, and is used for controlling the audible and visual alarm to give an alarm according to detection results of the first sensor and the second sensor, an elevator door closing signal and an elevator stopping signal. According to the invention, trapped or left people in the elevator car can be timely, actively and automatically found, and an alarm signal can be timely and automatically sent out, so that the taking safety of the elevator is improved. The invention discloses an automatic alarm method for people trapped in an elevator car.

    本发明公开一种电梯轿厢困人自动报警装置,其包括控制器、第一传感器、第二传感器、声光报警器以及电源,第一传感器、第二传感器分别设于轿厢内外并分别电连接于控制器,两者用于检测轿厢内外的二氧化碳浓度,声光报警器电连接于控制器并用于报警,电源电连接于供电回路上用于向控制器、第一传感器、第二传感器、声光报警器供电,控制器用于获取电梯停止信号以及电梯关门信号,并用于根据第一传感器、第二传感器的检测结果以及电梯关门信号、电梯停止信号来控制声光报警器报警。本发明可以及时、主动地自动地发现轿厢内的被困或带留人员并及时自动发出报警信号,从而提高电梯乘坐安全。本发明公开一种电梯轿厢困人自动报警方法。


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    Title :

    Automatic alarm device and alarm method for people trapped in elevator car


    Additional title:

    电梯轿厢困人自动报警装置及报警方法


    Contributors:
    LIN YONGHE (author) / QIN HAICAI (author) / YANG QINGYUN (author) / WAN LEI (author)

    Publication date :

    2022-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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