Car and entity safety supervising unit for an elevator

    公开(公告)号:US11884512B2

    公开(公告)日:2024-01-30

    申请号:US16332398

    申请日:2017-09-14

    Applicant: Inventio AG

    CPC classification number: B66B5/0031 B66B1/24 B66B1/3461 B66B1/3492 B66B1/46

    Abstract: A car safety supervising unit (SSU) for an elevator having an elevator car displaceable within an elevator shaft includes at least one sensor for sensing car-related parameters and outputting corresponding car-related signals, an I/O interface for inputting input signals into the car SSU and for outputting output signals to external devices and a signal processing unit for processing at least one of the car-related signals and the input signals and for generating the output signals. In an installation operation mode, the signal processing unit processes exclusively the car-related signals and generates the output signals based exclusively on the car-related signals whereby the car SSU accomplishes basic safety functions for safely operating the elevator with a limited number of available sensors. In a normal operation mode, the signal processing unit processes both the car-related signals and the input signals and generates the output signals based on both.

    Method for operating an electronic safety system with temporary participants

    公开(公告)号:US10549948B2

    公开(公告)日:2020-02-04

    申请号:US15535741

    申请日:2015-12-15

    Applicant: Inventio AG

    Abstract: A method for operating a safety system having a control unit, a bus, a plurality of bus nodes connected to the control unit via the bus and a plurality of participants connected to the control unit via the bus nodes, wherein at least one participant is designed as a temporary participant. The method involves the steps that the temporary participant is notified in the safety system by the temporary participant being connected at a bus node to the safety system via the bus, the temporary participants is recognized by the control unit, the temporary participant is integrated into the safety system by the control unit and the temporary participant is activated at least once. A further aspect of the invention relates to a safety system for an elevator system for carrying out the method and to an elevator system having the safety system.

    Elevator safety supervising entity with two units having an option for e.g. autonomous passenger evacuation

    公开(公告)号:US11420848B2

    公开(公告)日:2022-08-23

    申请号:US16333277

    申请日:2017-09-14

    Applicant: Inventio AG

    Abstract: An elevator safety supervising entity (SSE) includes a car safety supervising unit (SSU) controlling functions of car safety components and having at least one car sensor sensing car-related parameters, a head SSU controlling functions of shaft safety components and having at least one shaft sensor sensing shaft-related parameters, and a data linkage transmitting signal data between the SSUs. Both SSUs detect a failure in the other one of the SSUs and in the data linkage signal data transmission and in response switch from a normal operation mode to a failure operation mode. In the failure operation mode, the SSUs operate autonomously to keep the elevator operative at least temporarily with a sufficiently high safety even when functions of the elevator SSE are disturbed due to failures and e.g. passengers may be evacuated from the elevator car before completely stopping elevator operation.

    METHOD FOR MOVING AN ELEVATOR CAR OF AN ELEVATOR FOR EVACUATING PASSENGERS AND BRAKE OPENING DEVICE FOR MOVING AN ELEVATOR CAR OF AN ELEVATOR FOR EVACUATING PASSENGERS

    公开(公告)号:US20220055861A1

    公开(公告)日:2022-02-24

    申请号:US17309681

    申请日:2019-12-20

    Applicant: Inventio AG

    Abstract: A method for moving an elevator car of an elevator for evacuating passengers from the elevator car in the event of a power failure, wherein a brake blocks a vertical movement of the elevator car, includes the steps of: applying an electrical pulse or a plurality of electrical pulses to the brake of the elevator car to release the brake and unblock the vertical movement of the elevator car, the brake being released for as long as the particular electrical pulse is applied to the brake; determining a covered height which the elevator car has covered during the application of the particular electrical pulse; comparing the determined covered height with a predetermined distance; and terminating the application of the particular electrical pulse to the brake when the determined covered height is equal to or greater than the predetermined distance.

    Method for operating an electronic safety system with temporary participants

    公开(公告)号:US10662027B2

    公开(公告)日:2020-05-26

    申请号:US15536815

    申请日:2015-12-15

    Applicant: Inventio AG

    Abstract: A method for operating a safety system having a control unit, a bus, a plurality of bus nodes connected to the control unit via the bus, and a plurality of participants connected to the control unit via the bus nodes, wherein at least one participant is designated as a temporary participant. The method includes the step of logging the temporary participant out of the safety system by giving notice of a disconnection of the temporary participant from the safety system by a manipulation and disconnecting the temporary participant from the safety system. The safety system can be used with an elevator system for carrying out the method.

    Passenger transport system with central control unit and multiple field devices which communicate with data telegrams prioritized by waiting periods

    公开(公告)号:US10554443B2

    公开(公告)日:2020-02-04

    申请号:US16304322

    申请日:2017-06-07

    Applicant: Inventio AG

    Abstract: A passenger transport system includes a central control unit for controlling system functions, field devices spatially distributed within the system, and a bus system transmitting data between the unit and the devices. The unit and/or the devices detect a current data transmission and the conclusion of the data transmission, and output different types of data telegrams that differ according to urgency. The unit and/or the devices output data telegrams only when no current data transmission is occurring and after a waiting period has elapsed since the conclusion of a previous data transmission. Each type of data telegram is assigned an individual waiting period on the basis of the respective urgency. Thus, a simple transmission prioritization is implemented during the data transmission, wherein each device can transmit data telegrams with different urgency and data telegrams of higher urgency are effectively transmitted with higher priority than data telegrams of lesser urgency.

    ELEVATOR SYSTEM HAVING A CIRCUIT WITH A SWITCH MONITORED BY MEANS OF AN AC VOLTAGE SIGNAL

    公开(公告)号:US20190263628A1

    公开(公告)日:2019-08-29

    申请号:US16344072

    申请日:2017-10-25

    Applicant: Inventio AG

    Abstract: An elevator system controller controls a drive and optionally further elevator components. The controller includes a circuit having a switch to be monitored, the switch having an input and an output, a signal transmitter unit applying an AC voltage input signal to the input of the switch, and a monitoring unit to record an output signal at an output of the switch. On the basis of a comparison of the output signal with the input signal, the circuit generates a monitoring signal that indicates a switching state of the switch. The switch may be, for example, a door switch connected in series with other safety switches to form a safety chain. Applying the AC voltage signal instead of a conventional DC voltage signal makes it possible to avoid electrical corrosion in the switch and also makes it possible to increase a reliability of a detected switching state of the switch.

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