Raytheon Technologies Corporation

Otis Elevator Company

Rtx Corporation

Rockwell Collins, Inc.

Rosemount Aerospace Limited

Exelis Inc.

Goran Djuknic

Joseph V Mantese

Coy Bruce Wood

Jonathan Gilson

Gurkan Gok

Sanjay Bajekal

Brenda J Lisitano

Enrico Manes

Walter Thomas Schmidt

Joseph Zacchio

Paul R Braunwart

Ziyou Xiong

Suman Dwari

Geoffrey T Blackwell

Eric J Heims

Stephen Savulak

Joseph B Wysocki

John A Needham

Wayde R Schmidt

Zaffir A Chaudhry

Derk Oscar Pahlke

Fanping Sun

Yan Chen

Norbert Antony Murray Hootsmans

Luca Manica

Mario Pink

Davide Martintoni

Ajit Rajagopalan

Giacomo Gentile

Marco Rocchetto

Parikshith B Channegowda

Valerio Senni

Marco Carloni

A radio frequency waveguide communication system includes a controller configured to output a radio frequency signal, and at least one connected node configured to output a node signal indicative of monitored parameter of a machine. The radio frequency waveguide communication system includes a waveguide and a radio frequency interface module. The waveguide is in signal communication with the controller and is configured to guide the radio frequency signal toward the at least one connected node. The radio frequency interface module is configured to establish signal communication between the controller and the at least one connected node, and includes at least one detachable portion configured to detach from the at least one waveguide.

Radio frequency interface to sensor

A method of transmitting a message from a sender to a receiver is provided, wherein the communication between the sender and receiver is performed using a hybrid automatic-repeat-request protocol. Artificial noise is added digitally to a first data packet in order to trigger transmission of a second data packet. Corresponding artificial noise is added digitally to the second data packet such that the receiver device can process the data packets together to remove the introduced artificial noise and extract the desired message. Also disclosed are methods where artificial noise is added to a predetermined set of plural data packets in a similar fashion.

Secure communication protocol

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

Disclosed is an elevator system having an elevator entryway, the elevator entryway including: a first door, which is an elevator door, a first controller operationally connected to the first door for opening and closing the first door to provide access to an elevator, wherein when the first door is closing: the first controller monitors for first instructions over a frequency applicable to light detection and ranging (LIDAR) and/or a radio detection and ranging (RADAR), and upon receiving the first instructions, the first controller executes the first instructions.

Elevator system with LIDAR and/or RADAR sensor

An elevator system includes a controller; an elevator car; an elevator car controller mounted on the elevator car; a transceiver on the elevator car; an access point; the transceiver and the access point configured to provide wireless communications between the controller and the elevator car controller over a first communications path and a second communications path.

Elevator system with plural wireless communications paths

Provided are embodiments including a system a method for performing smart beamforming for reliable and secure wireless data transmission. The can embodiments include receiving at least one parameter of an elevator car operating in a hoistway, and determining a steering angle based on the received parameters. The embodiments can also include performing beamforming of an antenna array based on the determined steering angle, and transmitting data from the antenna array based at least in part on a beamforming process.

Smart beamforming for reliable and secure wireless data transmissions

A system of a machine includes a network of nodes distributed throughout the machine. Each of the nodes is operable to communicate through electromagnetic signals. The system also includes a radio frequency transceiver, a first antenna coupled to the radio frequency transceiver, a second antenna coupled to one or more sensor nodes, and a controller coupled to the radio frequency transceiver. The controller is configured to select at least one sensor node to interrogate, transmit one or more interrogation frequencies from the radio frequency transceiver through the first antenna to the second antenna, receive one or more sensor frequencies at the first antenna broadcast from the second antenna based on a frequency response of the at least one sensor node to the one or more interrogation frequencies, and determine one or more sensed values based on the sensor frequencies received at the radio frequency transceiver through the first antenna.

Radio frequency system sensor interface

A multi-mode microwave waveguide blade sensing system includes a transceiver, a waveguide, and a probe sensor. The transceiver generates a microwave energy signal having a first waveguide mode and a different second waveguide mode. The waveguide includes a first end that receives the microwave energy signal. The probe sensor includes a proximate end that receives the microwave energy signal from the transceiver and a distal end including an aperture that outputs the microwave energy signal. The probe sensor directs the microwave energy signal at a first direction based on the first waveguide mode and a different second direction different based on the second waveguide mode. The probe sensor receives different levels of reflected microwave energy based at least in part on a location at which the at least one microwave energy signal is reflected from the machine.

Multi-mode microwave waveguide blade sensing system

A system of a machine includes a network of nodes distributed throughout the machine. Each of the nodes is operable to communicate using a plurality of electromagnetic signals. A controller is operable to communicate with the nodes using electromagnetic signals. A radio frequency-based repeater is in the network between the controller and at least one of the nodes. The radio frequency-based repeater is configured to operate using power extracted from at least one of the electromagnetic signals when a signal-to-noise ratio is above a threshold, and the radio frequency-based repeater is configured to use energy stored in an onboard energy storage system when the signal-to-noise ratio is below the threshold.

Radio frequency-based repeater in a waveguide system

A system includes a network of nodes. A controller of the system is operable to communicate with the network of nodes through one or more electromagnetic signals. A plurality of waveguides is configured to guide transmission of the one or more electromagnetic signals. A radio frequency transceiver is configured to establish communication between the controller and a first waveguide of the plurality of waveguides. A membrane is configured to support communication between the first waveguide and at least one node of the plurality of nodes.

Radio frequency waveguide communication in high temperature environments

A system of a machine includes a waveguide system and a radio frequency transceiver/detector coupled to the waveguide system and configured to emit a calibration signal in the waveguide system to establish a reference baseline between the radio frequency transceiver/detector and a calibration plane associated with an aperture of the waveguide system, emit a measurement signal in the waveguide system to transmit a radio frequency signal from the radio frequency transceiver/detector out of the aperture of the waveguide system, and detect a reflection of the measurement signal at the radio frequency transceiver/detector based on an interaction between the measurement signal and a component of the machine. A measurement result of the reflection of the measurement signal can be adjusted with respect to a reflection of the calibration signal.

Self-referencing microwave sensing system

A system of a machine includes a network of a plurality of nodes distributed throughout the machine. Each of the nodes is operable to communicate through one or more radio frequencies, where the machine includes a cooler portion and a hotter portion. The system includes a means for communicating with the network of nodes using a higher frequency to communicate with one or more of the nodes in the cooler portion of the machine and a lower frequency to communicate with one or more of the nodes in the hotter portion of the machine.

Radio frequency waveguide system for mixed temperature environments

According to a wireless power transfer system for wirelessly powering a conveyance apparatus of a conveyance system including: a wireless electrical power transmitter located along a side of the conveyance system in a first location; a power management system configured to control operation of the wireless electrical power transmitter; a wireless electrical power receiver located along a surface of the conveyance apparatus opposite the side; an energy storage device configured to receive electrical power from the wireless electrical power receiver; an energy storage device management system configured to monitor data of the energy storage device and the conveyance apparatus, the energy storage device management system being in wireless communication with the power management system, wherein the energy storage device management system is configured to transmit the data to the power management system and the power management system adjusts operation of the wireless electrical power transmitter in response to the data.

Closed loop control wireless power transmission system for conveyance system

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New York, NY, United States of America

Goran Djuknic