# US 11,993,483 B2 · E-call registration for elevator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,483 B2 - Document ID: US11993483B2 - Status: Granted - Kind: B2 - Application number: 16/386,362 - Filed: 2019-04-17 - Published: 2019-10-24 - Granted: 2024-05-28 - Earliest claimed: 2018-04-19 - Assignees: Otis Elevator Company - Applicants: Otis Elevator Company - Inventors: Jayapal Reddy Gireddy - Web page: https://patentgrep.com/patent/US11993483B2 ## CPC - B66B 1/468: {Call registering systems} - B66B 1/28: electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) - B66B 1/3461: {between the elevator control system and remote or mobile stations} - B66B 2201/101: Single call input - B66B 2201/4607: Call registering systems - B66B 2201/4653: wherein the call is registered using portable devices - B66B 2201/4684: for preventing accidental or deliberate misuse - 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 An elevator system is provided. Aspects includes at least one elevator car, a plurality of sensors, a controller coupled to a memory, the controller configured to receive a call request for an elevator car from a user device. An identifier is transmitted to the user device and to the plurality of sensors. A location of the user device is determined based at least in part on at least one sensor in the plurality of sensors detecting the identifier on the user device. And the at least one elevator car is operated based on the location of the user device. ## Claims ### Claim 1 An elevator system comprising: at least one elevator car; a plurality of sensors; a controller coupled to a memory, the controller configured to: receive a call request for an elevator car from a user device; transmit an identifier to the user device; determine a location of the user device based at least in part on at least one sensor in the plurality of sensors detecting the identifier on the user device; and operate the at least one elevator car based on the location of the user device; wherein the controller is further configured to transmit a confirmation to the user device; wherein the confirmation comprises a time window for a user of the user device to travel to a first region. ### Claim 2 (depends on 1) The elevator system of claim 1, wherein the confirmation comprises an elevator car identifier. ### Claim 3 (depends on 1) The elevator system of claim 1, wherein the controller is further configured to: cancel the call request based at least in part on the user device failing to travel to the first region within the time window; and transmit a cancellation to the user device. ### Claim 4 (depends on 1) The elevator system of claim 1, wherein the controller is further configured to: based at least in part on the user device travelling to the first region within the time window, identify a second region for the user device to travel to within a second time window; and determine that the user device travels to the second region within the second time window. ### Claim 5 (depends on 4) The elevator system of claim 4, wherein the controller is further configured to: cancel the call request based at least in part on the user device failing to travel to the second region within the second time window; and transmit a cancellation to the user device. ### Claim 6 A system for detecting a location of an elevator passenger, the system comprising: a plurality of sensors, wherein the plurality of sensors are positioned at one or more locations associated with an elevator system; a processor coupled to a memory, the processor configured to: receive a call request for an elevator car from a user device; transmit an identifier to the user device; determine a location of the user device based at least in part on at least one sensor in the plurality of sensors detecting the identifier on the user device; and transmit the call request to an elevator controller; wherein the processor is further configured to transmit a confirmation to the user device; wherein the confirmation comprises a time window for a user of the user device to travel to a first region. ### Claim 7 (depends on 6) The system of claim 6, wherein the confirmation comprises an elevator car identifier. ### Claim 8 (depends on 6) The system of claim 6, wherein the processor is further configured to: transmit a cancellation of the call request to the elevator controller based at least in part on the user device failing to travel to the first region within the time window; and transmit a cancellation to the user device. ### Claim 9 (depends on 8) The system of claim 8, wherein the processor is further configured to: based at least in part on the user device travelling to the first region within the time window, identify a second region for the user device to travel to within a second time window; and determine that the user device travels to the second region within the second time window. ### Claim 10 (depends on 9) The system of claim 9, wherein the processor is further configured to: transmit a cancellation of the call request to the elevator controller based at least in part on the user device failing to travel to the second region within the second time window; and transmit a cancellation to the user device. ### Claim 11 A method for registering elevator calls for an elevator system, the elevator system comprising a plurality sensors in communication with a controller, the method comprising: receiving, by the controller, a call request for an elevator car from a user device, wherein the user device includes an identifier; determining a location of the user device based at least in part on at least one sensor in the plurality of sensors detecting the identifier on the user device; operating the at least one elevator car based on the location of the user device; transmitting, by the controller, a confirmation to the user device; wherein the confirmation comprises a time window for a user of the user device to travel to a first region. ### Claim 12 (depends on 11) The method of claim 11, wherein the confirmation comprises an elevator car identifier. ### Claim 13 (depends on 11) The method of claim 11 further comprising: transmitting a cancellation of the call request to the elevator controller based at least in part on the user device failing to travel to the first region within the time window; and transmitting a cancellation to the user device.