ELEVATOR SYSTEM INCLUDING PIT SAFETY INTERFACE

    公开(公告)号:US20240409368A1

    公开(公告)日:2024-12-12

    申请号:US18333187

    申请日:2023-06-12

    Abstract: An elevator system includes a hoistway; an elevator car configured to travel in the hoistway; a pit located at a bottom of the hoistway; a pit safety interface located in the pit; a pit emergency switch located in the pit; a reset device located outside the hoistway; a safety chain contact that is part of a safety chain of the elevator system; and a sensor assembly configured to initiate opening the safety chain contact to disable motion of the elevator car upon detection of a person in the pit and the pit safety interface not being activated.

    MULTI-STAGE DETECTION TRIGGER FOR HUMAN SENSING

    公开(公告)号:US20240409364A1

    公开(公告)日:2024-12-12

    申请号:US18333090

    申请日:2023-06-12

    Abstract: An elevator system, having: an elevator car, a hoistway, and a pit; a sensor assembly, including a sensor configured to capture and process images; an elevator safety chain; wherein the sensor assembly is configured to: monitor in first sensing mode to detect whether an object is located in a first area of the elevator system; after the object is detected in the first area in the first sensing mode, monitor in a second sensing mode that is more sensitive than the first sensing mode to detect the object in the second sensitivity mode; and upon detecting the object in the second sensitivity mode, the elevator safety chain is opened by the sensor assembly to stop the elevator car.

    MODE SPECIFIC MULTI-STAGE DETECTION TRIGGER FOR HUMAN SENSING

    公开(公告)号:US20240409367A1

    公开(公告)日:2024-12-12

    申请号:US18333031

    申请日:2023-06-12

    Abstract: An elevator system, having: a car that operates normal and inspection modes; a sensor assembly; a safety chain; wherein while in the normal mode, the sensor assembly: monitors in a first sensing mode to detect whether an object is within a first area, and then monitors in a second sensing mode that is more sensitive than the first sensing mode to again detect the object; and upon determining that the object is potentially human, the safety chain is opened; and while in the inspection mode, the sensor assembly: bypasses the first sensing mode and monitors in the second sensing mode to detect whether the object is located in the first area; and upon detecting that the object is located in the first area, the safety chain is opened.

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