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    Wireless safety chain for elevator system
    1.
    发明授权
    Wireless safety chain for elevator system 有权
    电梯系统无线安全链

    公开(公告)号：US06467585B1

    公开(公告)日：2002-10-22

    申请号：US09899400

    申请日：2001-07-05

    申请人： Michael Gozzo ,  Robert G. Morgan ,  Alberto Vecchiotti

    发明人： Michael Gozzo ,  Robert G. Morgan ,  Alberto Vecchiotti

    IPC分类号： B66B502

    CPC分类号： B66B13/22

    摘要： A wireless safety chain for an elevator system includes a base transceiver connected to a system controller. A plurality of safety chain components each includes a physical sensor such as a switch, and a wireless transceiver. The physical sensor monitors the component status. The wireless transceiver communicates among the other safety chain components and the system controller. The wireless safety chain preferably employs a token scheme, where a token is sent from the base transceiver to one component, which in turn sends the token to another component, and so on, until the token returns to the base transceiver. Failure of the token to return to the base transceiver in a predetermined amount of time signals that the elevator system is unsafe.

    摘要翻译： 电梯系统的无线安全链包括连接到系统控制器的基站收发器。 多个安全链组件各自包括诸如开关的物理传感器和无线收发器。 物理传感器监控组件状态。 无线收发器在其他安全链组件和系统控制器之间进行通信。 无线安全链优选地采用令牌方案，其中令牌从基本收发器发送到一个组件，该组件又将令牌发送到另一个组件，等等，直到令牌返回到基本收发器。 令牌以预定的时间量返回基地收发信机的故障表示电梯系统不安全。