# US 2018/0022575 A1 · Wireless communication for self-propelled elevator system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022575 A1 - Document ID: US20180022575A1 - Status: Published application - Kind: A1 - Application number: 15/547,920 - Filed: 2016-02-02 - Published: 2018-01-25 - Earliest claimed: 2015-02-05 - Assignees: Otis Elevator Company - Applicants: Otis Elevator Company - Inventors: David Ginsberg; Dang V. Nguyen - Web page: https://patentgrep.com/patent/US20180022575A1 ## CPC - B66B 1/30: effective on driving gear {, e.g. acting on power electronics, on inverter or rectifier controlled motor} - B66B 1/3446: {Data transmission or communication within the control system} - B66B 1/3461: {between the elevator control system and remote or mobile stations} - B66B 1/3492: {Position or motion detectors or driving means for the detector (B66B1/40, B66B1/50 take precedence; length measuring G01B; speed measuring G01P)} - B66B 5/0018: {Devices monitoring the operating condition of the elevator system} - B66B 9/00: Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) - B66B 9/003: {for lateral transfer of car or frame, e.g. between vertical hoistways or to/from a parking position} - B66B 11/0407: {actuated by an electrical linear motor (in the counterweight B66B17/12)} - B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00) ## Abstract A self-propelled elevator system includes a hoistway (11) including a plurality of drives (40), wherein each of the plurality of drives includes a stationary portion (16) of a propulsion system and a controller (30) configured to operate the stationary portion of the propulsion system. The propelled elevator system also includes an elevator car ((14), 42) comprising a processor (44) and a transceiver (48), wherein the transceiver is configured to communicate with the controllers of one or more of the plurality of drives that are adjacent to the elevator car and one or more sensors (46) disposed on the elevator car, wherein the processor is configured to receive signals from the one or more sensors. The processor is configured to control a movement of the elevator car within the hoistway. ## Claims ### Claim 1 A self-propelled elevator system comprising: a hoistway including a plurality of drives, wherein each of the plurality of drives includes a stationary portion of a propulsion system and a controller configured to operate the stationary portion of the propulsion system; an elevator car comprising a processor and a transceiver, wherein the transceiver is configured to communicate with the controllers of one or more of the plurality of drives that are adjacent to the elevator car; and one or more sensors disposed on the elevator car, wherein the processor is configured to receive signals from the one or more sensors, wherein the processor is configured to control a movement of the elevator car within the hoistway. ### Claim 2 (depends on 1) The self-propelled elevator system of claim 1, wherein the one or more sensors are configured to monitor at least one of: a speed of the elevator car; an acceleration of the elevator car; a load in the elevator car; a position of one or more doors of the elevator car; and a position of one or more breaks of the elevator car. ### Claim 3 (depends on 1) The self-propelled elevator system of claim 1, wherein the elevator car further comprises a second transceiver, wherein the second transceiver is configured to operate on a different frequency than the transceiver to provide full duplex communication. ### Claim 4 (depends on 1) The self-propelled elevator system of claim 1, wherein the controller of each of the plurality of drives are configured to communicate with each other via a wired communications system. ### Claim 5 (depends on 4) The self-propelled elevator system of claim 4, further comprising a lane supervisor configured to communicate with the plurality of drives via the wired communications system, wherein the lane supervisor is configured to monitor the position of the elevator car in the hoistway and to provide instructions to the elevator car to move up and down in the hoistway. ### Claim 6 (depends on 1) The self-propelled elevator system of claim 1, wherein an effective range of the transceiver is less than a height of the elevator car. ### Claim 7 A self-propelled elevator system comprising: a hoistway including a plurality of drives, wherein each of the plurality of drives includes a stationary portion of a propulsion system and a controller configured to operate the stationary portion of the propulsion system; a plurality of wireless communication bridges, each of the plurality of wireless communication bridges being configured to communicate with a subset of the plurality of drives in a vicinity of the wireless communication bridge; an elevator car comprising a processor and a transceiver, wherein the transceiver is configured to communicate with one or more of the plurality of wireless communication bridge adjacent to the elevator car; and one or more sensors disposed on the elevator car, wherein the processor is configured to receive signals from the one or more sensors, wherein the processor is configured to control a movement of the elevator car within the hoistway. ### Claim 8 (depends on 7) The self-propelled elevator system of claim 7, wherein the one or more sensors are configured to monitor at least one of: a speed of the elevator car; an acceleration of the elevator car; a load in the elevator car; a position of one or more doors of the elevator car; and a position of one or more breaks of the elevator car. ### Claim 9 (depends on 7) The self-propelled elevator system of claim 7, wherein the elevator car further comprises a second transceiver, wherein the second transceiver is configured to operate on a different frequency than the transceiver to provide full duplex communication. ### Claim 10 (depends on 7) The self-propelled elevator system of claim 7, wherein the controller of each of the plurality of drives are configured to communicate with each other via the wired communications system. ### Claim 11 (depends on 10) The self-propelled elevator system of claim 10, further comprising a lane supervisor configured to communicate with the plurality of drives via the wired communications system, wherein the lane supervisor is configured to monitor the position of the elevator car in the hoistway and to provide instructions to the elevator car to move up and down in the hoistway. ### Claim 12 (depends on 7) The self-propelled elevator system of claim 7, wherein an effective range of the transceiver is less than a height of the elevator car. ### Claim 13 A self-propelled elevator system comprising: a hoistway including a plurality of drives, wherein each of the plurality of drives includes a stationary portion of a propulsion system and a controller configured to operate the stationary portion of the propulsion system; an elevator car comprising a processor and a transceiver, wherein the transceiver is configured to communicate with the controllers of one or more of the plurality of drives that are adjacent to the elevator car; and one or more sensors disposed on the elevator car, wherein the processor is configured to receive signals from the one or more sensors, wherein the controllers of one or more of the plurality of drives that are adjacent to the elevator car are configured to control a movement of the elevator car within the hoistway. ### Claim 14 (depends on 13) The self-propelled elevator system of claim 13, wherein the one or more sensors are configured to monitor at least one of: a speed of the elevator car; an acceleration of the elevator car; a load in the elevator car; a position of one or more doors of the elevator car; and a position of one or more breaks of the elevator car. ### Claim 15 (depends on 13) The self-propelled elevator system of claim 13, wherein the elevator car further comprises a second transceiver, wherein the second transceiver is configured to operate on a different frequency than the transceiver to provide full duplex communication. ### Claim 16 (depends on 13) The self-propelled elevator system of claim 13, wherein the controller of each of the plurality of drives are configured to communicate with each other via a wired communications system. ### Claim 17 (depends on 16) The self-propelled elevator system of claim 16, further comprising a lane supervisor configured to communicate with the plurality of drives via the wired communications system, wherein the lane supervisor is configured to monitor the position of the elevator car in the hoistway and to provide instructions to the elevator car to move up and down in the hoistway. ### Claim 18 (depends on 13) The self-propelled elevator system of claim 13, wherein an effective range of the transceiver is less than a height of the elevator car.