Otis Elevator Company

Derk Oscar Pahlke

Tadeusz Pawel Witczak

Craig Drew Bogli

Yrinee Michaelidis

Philipp Schedl

Robert Takacs

Ezhil Nanjappan

Lutz Hentschel

Mario Pink

Paul A Simcik

Goran Djuknic

Stephen R Nichols

Michael Garfinkel

Nikola Trcka

Luis C Encinas Carreno

Brian F Beloin

Amit Keshri

Markus Mueller

Prakash Bodla

Robert Bastubbe

Srinivas R Julakanti

Bv Rao

An elevator system () comprises an elevator car () configured for traveling along a hoistway (); a sensor () configured for determining the current position of the elevator car () within the hoistway (); at least one stationary wireless communication module () arranged within or close to the hoistway (); and a mobile wireless communication module () attached to the elevator car (). The wireless communication modules () are configured to communicate with each other via a wireless data connection. The wireless communication modules () are further configured for communication via one of a plurality of radio channels and selecting the radio channel used for the communication from the plurality of radio channels based on the current position of the elevator car () within the hoistway ().

Wireless communication in an elevator system using a plurality of radio channels

A method of monitoring motion of an elevator car within an elevator system is provided including: detecting, using a sensing apparatus, a plurality of pairs of corresponding data within a selected period of time, each pair of corresponding data including a detected elevator car height and a landing corresponding to the detected elevator car height; transmitting the plurality of pairs of corresponding data to a remote device for processing; determining, using the remote device, which of the landings of the plurality of pairs of corresponding data have a number of reoccurrences above a selected threshold; and determining, using the remote device, that pairs of corresponding data of the plurality of pairs of corresponding data are above the selected threshold, the pairs of corresponding data of the plurality of pairs of corresponding data include a landing with a number of reoccurrences above the selected threshold are correct pairs.

Air pressure floor table detection: statistical analysis of location

According to an aspect, a method includes monitoring a plurality of vibration data by a vibration monitoring beacon and determining that the vibration monitoring beacon has been installed at a service location based on detecting an installation characteristic signature in the vibration data. The vibration monitoring beacon can transition into a learning mode based on determining that the vibration monitoring beacon has been installed at the service location. The method can also include monitoring for a learning mode termination event and transitioning the vibration monitoring beacon from the learning mode to a normal operation mode based on detecting the learning mode termination event.

Vibration monitoring beacon mode detection and transition

A method of calibrating a monitoring device () for monitoring movement of a movable component () of an elevator system () comprises detecting () a travel time (Δt) between a starting time (t) and a stopping time (t') as well as acceleration (a(t)) of at least one movement of the movable component (); determining () a travel distance of the movable component () by integrating the detected acceleration (a(t)) twice with respect to the detected travel time (Δt); correlating () the determined travel distance (s) with the detected travel time (Δt) to form a pair of travel time and travel distance; and storing () the pair of travel time and travel distance (Δt,s) as part of a travel profile ().

Device and method for monitoring an elevator system

A method of monitoring health of an elevator system including: detecting, using a sensing apparatus, sensor data, the sensor data including at least one of an acceleration of an elevator car, temperature data of the elevator system, and pressure data proximate the elevator car; determining a health level of the elevator system in response to at least one of the acceleration of the elevator car, the temperature data of the elevator system, and the pressure data proximate the elevator car; determining whether the health level is greater than a selected threshold; determining that there is a potential health issue if the health level is greater than the selected threshold; determining one or more possible locations for the health level within an elevator shaft; determining a probability of each of the one or more possible locations; and displaying the probability of the health level being at a plurality of locations.

Estimation and presentation of area of interest for condition based monitoring on doors: door health heat map

According to an aspect, a method includes collecting a calibration set of vibration data for an elevator car at a plurality of landings in a hoistway. One or more characteristic signatures are determined at each of the landings based on the calibration set of vibration data. An analysis set of vibration data is collected for the elevator car. A position of the elevator car is identified in the hoistway based on comparing one or more features of the analysis set of vibration data to the one or more characteristic signatures. An indicator of the position of the elevator car in the hoistway is output.

Elevator car position determination

A method of monitoring a location of a conveyance apparatus within a conveyance system including: detecting a first location of the conveyance apparatus at a first time using a position reference system; detecting a second location of the conveyance apparatus at a second time using at least one of a pressure sensor located on the conveyance apparatus and an acceleration sensor located on the conveyance apparatus; and determining that the second location is equivalent to the first location if the second time is within a selected range of the first time.

Air pressure and acceleration sensor floor correction by elevator status information

A monitoring device (), which is configured for monitoring movement of at least one component () of an elevator system (), includes an acceleration sensor () and a controller (). The acceleration sensor () is configured for detecting accelerations (g, g') of the at least one component () and providing a corresponding acceleration signal (). The controller () is configured for determining peaks () having positive or negative signs in the detected acceleration signal (); determining the signs of the detected peaks (); and determining that the moving direction of the at least one component () has changed when two subsequent peaks () of the acceleration signal () having the same sign are detected.

Method and device for monitoring an elevator system

An elevator data communication system is configured to communicate between a plurality of elevator systems and a datacenter remotely located from the plurality of elevator systems. The elevator data communication system includes a software-based cloud communication platform and a server. The software-based cloud communication platform is configured to receive and send communications to the plurality of elevator systems. The server is remotely located from the plurality of elevator systems and is configured to send and receive the communications between the datacenter and the software-based cloud communication platform. The server includes a plurality of software-based simulated modems each assigned to a respective one of the plurality of elevator systems.

Elevator data communication systems configured to communicate with remote elevator datacenters

A method of monitoring motion of a conveyance apparatus within a conveyance system is provided. The method including: detecting a first atmospheric air pressure proximate the conveyance apparatus at a first time and a second atmospheric air pressure proximate the conveyance apparatus at a second time using the pressure sensor located on the conveyance apparatus; determining a change in atmospheric air pressure proximate the conveyance apparatus in response to the first and second atmospheric air pressure; detecting a height change of a conveyance apparatus in response to at least the change in atmospheric air pressure; and confirming or disconfirming the height change using at least one of a rate of change in atmospheric air pressure prior to the first time, an acceleration of the conveyance apparatus, a rate of change in static atmospheric air pressure, a rate of change in temperature, and a rate of change in relative humidity detection.

Pressure sensor algorithm to detect elevator status information

The invention relates to a method of providing a seamless wireless connection in an elevator system of a building. The method comprises receiving an elevator car request from a passenger who is on a source floor, dispatching an elevator car to the source floor in response to the elevator car request, selecting at least one wireless local area network (WLAN) established in the building, and forwarding the selected at least one WLAN via a network node placed in at least one of an elevator hall of the source floor, the dispatched elevator car, or an elevator hall of a destination floor.

Wireless connectivity in an elevator system

Methods and systems for elevator car level detection are provided. Aspects includes collecting, by at least one sensor, horizontal distance data and vertical distance data associated with a component of an elevator car in relation to a floor landing in a hoistway of a building, wherein the at least on sensor is affixed to the component of the elevator car and analyzing the horizontal distance data and the vertical distance data to determine one or more offset values associated with the elevator car and the floor landing.

Elevator car leveling sensor

A method of monitoring a conveyance apparatus within a conveyance system including: detecting, using a sensing apparatus, at a first conveyance apparatus location at least one of an acceleration of the conveyance apparatus, temperature data of the conveyance system, and pressure data proximate the conveyance apparatus; determining a health level of the conveyance system at the first conveyance apparatus location in response to at least one of the acceleration of the conveyance apparatus, the temperature data of the conveyance system, and the pressure data proximate the conveyance apparatus; and displaying the health level for the conveyance system at the first conveyance apparatus location on a display device.

Elevator shaft distributed health level

A method of monitoring a conveyance apparatus within a conveyance system including: detecting a plurality of accelerations of the conveyance apparatus; determining a number of maximum accelerations of the plurality of accelerations that are above a threshold acceleration; determining that the number of maximum accelerations exceeds a threshold number of maximum accelerations within a threshold time period; and determining a health level of the conveyance system in response to the number of maximum accelerations within the threshold time period.

Elevator health status ranking out of acceleration maximum values

A method of monitoring a conveyance apparatus within a conveyance system including: obtaining a health level of the conveyance system at a first conveyance apparatus location; determining that the health level for the conveyance system at the first conveyance apparatus location is outside of a threshold operating range; activating an alert on a mobile device indicating that the health level for the conveyance system at the first conveyance apparatus location is outside of the threshold operating range; and receiving a selection input on the mobile device, the selection input indicating a mechanic feedback regarding the health level of the conveyance system at the first conveyance apparatus location.

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Berlin, Germany

Derk Oscar Pahlke