公开(公告)号：US20190352131A1

公开(公告)日：2019-11-21

申请号：US16476576

申请日：2018-01-18

Applicant: Inventio AG

Inventor： Florian Dold ,  Oliver Berner ,  Philippe Henneau

IPC: B66B7/12 ,  G01N27/20 ,  G01R31/08 ,  D07B1/14

Abstract: A suspension member arrangement for an elevator includes a suspension member having a plurality of electrically conductive load-bearing cords commonly embedded in an electrically isolating matrix material, a first connector and a second connector each attached to the suspension member and electrically contacting the cords within the suspension member in a contacted end region thereof. The first connector electrically contacts and electrically interconnects in parallel a first group of the cords being a first plurality of directly neighboring ones of the cords. The second connector electrically contacts and electrically interconnects in parallel a second group of the cords being a second plurality of directly neighboring ones of the cords. The suspension member arrangement facilitates electrically contacting the cords of the suspension member using a simple type of connector whereby deteriorations in characteristics of the suspension member can be electrically detected with high accuracy.

公开(公告)号：US11479444B2

公开(公告)日：2022-10-25

申请号：US16077255

申请日：2017-02-02

Applicant: Inventio AG

Inventor： Vincent Robibero ,  Philippe Henneau

IPC: B66B7/12 ,  D07B1/14 ,  B66B7/08 ,  B66B19/00 ,  G01R31/00 ,  B66B5/00 ,  G01R31/317 ,  G01R31/08 ,  B66B7/06 ,  G01M5/00 ,  G01N27/20

Abstract: A method and device detect non-uniform and uniform deterioration states in an elevator suspension member having first and second groups of electrically conductive cords. First ends of the groups are electrically connected to an alternating voltage generator arrangement and second ends are electrically connected to each other through first and second resistors via a neutral point at which electrical resistances of the groups are the same in a non-deteriorated state of the suspension member. The method includes: applying first and second alternating voltages to the first end of the first and second groups, respectively; determining a neutral point voltage between the neutral point and an electrical reference potential; determining difference voltages between first and second difference measurement points located between the second ends of the groups and the respective resistors; and determining the deterioration state based on both the determined neutral point voltage and the determined difference voltage.

公开(公告)号：US20210300721A1

公开(公告)日：2021-09-30

申请号：US17250524

申请日：2019-09-18

Applicant: Inventio AG

Inventor： Philippe Henneau ,  Amos Schaub ,  Kurt Heinz

IPC: B66B1/30 ,  B66B5/00 ,  B66B25/00

Abstract: A passenger conveying system includes a passenger conveyance installation designed as an elevator, escalator or moving walkway, a main energy supply supplying the passenger conveyance installation with electrical energy, a main switch for disconnecting the passenger conveyance installation from the main energy supply, which main switch has an input side connected to the main energy supply and an output side connected to the passenger conveyance installation. The system includes a measuring device with a sensor for measuring an electrical parameter, a converter which has a direct current side and an alternating current side, an energy store electrically connected to the direct current side of the converter, a control device for controlling the converter, wherein the sensor is electrically and/or electromagnetically connected on the input side of the main switch to the main energy supply and the alternating current side of the converter is electrically connected to the main energy supply.

公开(公告)号：US11078047B2

公开(公告)日：2021-08-03

申请号：US15748288

申请日：2016-07-28

Applicant: Inventio AG

Inventor： Vincent Robibero ,  Kurt Heinz ,  Urs Lindegger ,  Philippe Henneau

IPC: B66B7/12 ,  D07B1/14 ,  B66B7/08 ,  B66B19/00 ,  G01R31/08 ,  B66B7/06 ,  G01M5/00 ,  G01N27/20

Abstract: Methods and devices detect a deterioration state of a load bearing capacity in an elevator suspension member arrangement having several suspension members, such as belts, including electrically conductive cords incorporated into an elastomer material. Deterioration is determined by applying alternating electric voltages to the cords included in legs of a circuitry. Phase shifts between the alternating voltages, for example by determining sum voltages and/or differential voltages, provide valuable information about a condition of the belt. A fixation arrangement of the suspension member arrangement is adapted to enable or simplify the proposed measurements. Furthermore, counting a number of performed bending cycles provides further information to be taken into account for determining the current deterioration state of the belts. Overall, deteriorations in a suspension member such as broken cords, shunts between cords, connections between cords and ground potential and/or deterioration due to corrosion of cords may be easily detected.

公开(公告)号：US20200172375A1

公开(公告)日：2020-06-04

申请号：US16623630

申请日：2018-06-01

Applicant: Inventio AG

Inventor： Philippe Henneau ,  Vincent Robibero ,  James Bibby

IPC: B66B5/00

Abstract: A method for self-testing a monitoring device monitoring an integrity status of an elevator suspension member arrangement includes the monitoring device having a voltage generation arrangement for generating electric voltages and applying the electric voltages to cords in suspension members of the suspension member arrangement. The monitoring device has a voltage analyzer arrangement for detecting a deterioration in the integrity status based on modifications in the applied electric voltages upon transmission through the cords. The method includes the steps of: specifically modifying the generated electric voltages to systematically induce modifications in the applied electric voltages upon transmission through the cords which, under normal operation conditions of the monitoring device, would be interpreted by the monitoring device as indicating the deterioration in the integrity status; verifying whether the deterioration in the integrity status is correctly detected; and initiating a self-test-failure-action if the deterioration in the integrity status is not correctly detected.

公开(公告)号：US20190047823A1

公开(公告)日：2019-02-14

申请号：US16077255

申请日：2017-02-02

Applicant: Inventio AG

Inventor： Vincent Robibero ,  Philippe Henneau

IPC: B66B7/12 ,  B66B7/06 ,  G01N27/20

Abstract: A method and device detect non-uniform and uniform deterioration states in an elevator suspension member having first and second groups of electrically conductive cords. First ends of the groups are electrically connected to an alternating voltage generator arrangement and second ends are electrically connected to each other through first and second resistors via a neutral point at which electrical resistances of the groups are the same in a non-deteriorated state of the suspension member. The method includes: applying first and second alternating voltages to the first end of the first and second groups, respectively; determining a neutral point voltage between the neutral point and an electrical reference potential; determining difference voltages between first and second difference measurement points located between the second ends of the groups and the respective resistors; and determining the deterioration state based on both the determined neutral point voltage and the determined difference voltage.

公开(公告)号：US20180215584A1

公开(公告)日：2018-08-02

申请号：US15748277

申请日：2016-07-28

Applicant: Inventio AG

Inventor： Philippe Henneau

IPC: B66B7/12 ,  D07B1/14 ,  G01R31/08

CPC classification number: B66B7/1223 ,  B66B7/062 ,  B66B7/085 ,  B66B7/1215 ,  B66B19/007 ,  D07B1/145 ,  D07B2501/2007 ,  D10B2401/16 ,  G01M5/0033 ,  G01M5/0091 ,  G01N27/20 ,  G01R31/08 ,  G01R31/081

Abstract: A method for determining a deterioration state in a suspension member arrangement having a suspension member including a plurality of electrically conductive cords includes the steps of: counting a number of bending cycles applied to the suspension member; measuring an electrical characteristic of the suspension member upon applying an electrical voltage to at least one of the cords; performing at least one of (a) determining a critical deterioration state upon monitoring both the bending cycles number and the electrical characteristic, and (b) determining an unexpected deterioration state based on deriving a current actual deterioration state of the suspension member based on the electrical characteristic and assuming a currently expected deterioration state based on the bending cycles number and comparing the current actual deterioration state with the currently expected deterioration state; initiating a defined procedure upon determining at least one of the critical deterioration state and the unexpected deterioration state.

公开(公告)号：US11365093B2

公开(公告)日：2022-06-21

申请号：US16077113

申请日：2017-01-31

Applicant: Inventio AG

Inventor： Florian Dold ,  Philippe Henneau

IPC: D07B1/14 ,  G01R31/00 ,  B66B5/00 ,  G01R31/08 ,  B66B7/06 ,  B66B7/12 ,  B66B7/08 ,  B66B19/00 ,  G01R31/317 ,  G01M5/00 ,  G01N27/20

Abstract: A method for detecting a deterioration state in an elevator suspension member including electrically conductive cords uses a multiplexing unit (MU) to apply first and second alternating voltages to proximal ends of first and second groups of the cords respectively and connect the proximal end of a third group of the cords to a voltage measurement arrangement connected to a reference potential. Distal ends of the groups are connected together. A first neutral point voltage between the third proximal end and the reference potential is determined. The MU is switched to apply the first alternating voltage to the second proximal end, apply the second alternating voltage to the third proximal end and determine a second neutral point voltage between the first proximal end and the reference potential. The deterioration state of the suspension member arrangement is determined based on the first and second neutral point voltages.

公开(公告)号：US20210323790A1

公开(公告)日：2021-10-21

申请号：US17304754

申请日：2021-06-25

Applicant: Inventio AG

Inventor： Vincent Robibero ,  Kurt Heinz ,  Urs Lindegger ,  Philippe Henneau

IPC: B66B7/12 ,  D07B1/14 ,  B66B7/08 ,  B66B19/00 ,  G01R31/00 ,  B66B5/00 ,  G01R31/317 ,  G01R31/08 ,  B66B7/06 ,  G01M5/00 ,  G01N27/20

Abstract: Methods and devices detect a deterioration state of a load bearing capacity in an elevator suspension member arrangement having several suspension members, such as belts, including electrically conductive cords incorporated into an elastomer material. Deterioration is determined by applying alternating electric voltages to the cords included in legs of a circuitry. Phase shifts between the alternating voltages, for example by determining sum voltages and/or differential voltages, provide valuable information about a condition of the belt. A fixation arrangement of the suspension member arrangement is adapted to enable or simplify the proposed measurements. Furthermore, counting a number of performed bending cycles provides further information to be taken into account for determining the current deterioration state of the belts. Overall, deteriorations in a suspension member such as broken cords, shunts between cords, connections between cords and ground potential and/or deterioration due to corrosion of cords may be easily detected.

公开(公告)号：US20210316960A1

公开(公告)日：2021-10-14

申请号：US17250526

申请日：2019-09-18

Applicant: Inventio AG

Inventor： Philippe Henneau

IPC: B66B5/00 ,  B66B25/00 ,  B66B1/34

Abstract: A system for transporting passengers includes a passenger transportation installation designed as an elevator, escalator or moving walkway, a main energy supply supplying the passenger transportation installation with electrical energy, a main switch separating the passenger transportation installation from the main energy supply, which main switch has an input side connected to the main energy supply and an output side connected to the passenger transportation installation. The system further includes a measuring device having a sensor measuring an electrical parameter, and a communication device transferring the measured electrical parameter to an analysis device, wherein the sensor is connected electrically and/or electromagnetically to the main energy supply on the input side of the main switch.