# US 10,766,740 B2 · Location identification and location recovery of elevator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,740 B2 - Document ID: US10766740B2 - Status: Granted - Kind: B2 - Application number: 15/698,996 - Filed: 2017-09-08 - Published: 2018-03-15 - Granted: 2020-09-08 - Earliest claimed: 2016-09-09 - Assignees: Otis Elevator Company - Applicants: Otis Elevator Company - Inventors: GuoSong Li - Web page: https://patentgrep.com/patent/US10766740B2 ## CPC - 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)} - G05B 19/4067: Restoring data or position after power failure or other interruption - B66B 1/52: Floor selectors - 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) - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) ## Abstract The present invention relates to location recognition and recovery of an elevator system, and belongs to the technical field of elevators. The elevator system of the present invention has a location recovery/recognition system comprising: a landing floor information component or a calling component, a sensing component arranged corresponding to each landing floor information component or calling component and coupled to the landing floor information component or calling component, and a trigger component mounted on the elevator car. ## Claims ### Claim 1 An elevator system comprising: an elevator car; an elevator shaft comprising a plurality of landings; and an elevator control device configured to at least control a movement of the elevator car within the elevator shaft; a location recovery system comprising: landing floor information components arranged correspondingly on at least two of the plurality of landings and having floor location information of the corresponding landings; a sensing component arranged corresponding to each landing floor information component and coupled to the landing floor information component; and a trigger component mounted on the elevator car, wherein the sensing component is capable of being triggered by the trigger component to transmit a location recovery signal to enable the corresponding coupled landing floor information component to transmit the floor location information of the landing floor information component to the elevator control device; wherein the elevator shaft further comprises a dummy landing without the landing floor information component and the sensing component. ### Claim 2 (depends on 1) The elevator system according to claim 1, wherein the elevator control device is configured such that when the elevator control device loses the current location information of the elevator car or has invalid location information, the elevator control device controls the elevator car to move until it moves to a landing having the sensing component. ### Claim 3 (depends on 1) The elevator system according to claim 1, wherein the landing floor information component comprises a calling component. ### Claim 4 (depends on 1) The elevator system according to claim 1, wherein the landing floor information component is arranged correspondingly for each of the landings. ### Claim 5 (depends on 4) The elevator system according to claim 4, wherein the elevator control device is configured such that when the elevator control device loses the current location information of the elevator car or has invalid location information, the elevator control device controls the elevator car to move to the nearest landing. ### Claim 6 (depends on 3) The elevator system according to claim 3, wherein the calling component is coupled to the sensing component via an outgoing communication line of the calling component. ### Claim 7 (depends on 1) The elevator system according to claim 1, wherein the landing floor information component comprises a floor location information transmission module configured to receive the location recovery signal transmitted by the sensing component and to transmit the floor location information of the landing floor information component to the elevator control device. ### Claim 8 (depends on 1) The elevator system according to claim 1, wherein the elevator control device is further configured to determine that a landing where the elevator car is correspondingly located is a dummy landing when the sensing component is not detected. ### Claim 9 (depends on 1) The elevator system according to claim 1, wherein the trigger component comprises a magnetic stripe, and the sensing component comprises a magnetic induction sensor or a reed switch; or the trigger component comprises a light shielding plate, and the sensing component comprises a photoelectric switch. ### Claim 10 A location recovery method for an elevator system, wherein the elevator system comprises: an elevator car; an elevator shaft comprising a plurality of landings; and an elevator control device configured to at least control a movement of the elevator car within the elevator shaft; a location recovery system comprising: landing floor information components arranged correspondingly on at least two of the plurality of landings and having floor location information of the corresponding landings; a sensing component arranged corresponding to each landing floor information component and coupled to the landing floor information component; and a trigger component mounted on the elevator car; wherein the location recovery method comprises: controlling the elevator car to move until it moves to a landing having the sensing component when the elevator control device loses the current location information of the elevator car or has invalid location information, and triggering the sensing component by the trigger component; and transmitting the floor location information of the landing floor information component coupled correspondingly to the triggered sensing component as the current location information of the elevator car to the elevator control device. ### Claim 11 (depends on 10) The location recovery method according to claim 10, wherein the elevator system, the landing floor information component is arranged correspondingly for each of the landings; and in the location recovery method, when the elevator control device loses the current location information of the elevator car or has invalid location information, the elevator control device controls the elevator car to move to the nearest landing. ### Claim 12 (depends on 10) The location recovery method according to claim 10, wherein the elevator shaft further comprises a dummy landing without the landing floor information component and the sensing component; and in the location recovery method, a landing where the elevator car is correspondingly located is determined to be a dummy landing when the sensing component is not detected. ### Claim 13 An elevator system comprising: an elevator car; an elevator shaft comprising a plurality of landings; and an elevator control device configured to at least control a movement of the elevator car within the elevator shaft; a location recognition system comprising: a calling component arranged correspondingly on each of the landings; a sensing component arranged corresponding to the calling component of each landing and coupled to the calling component; and a trigger component mounted on the elevator car, wherein each of the calling components has floor location information of the corresponding landing, and the sensing component is capable of being triggered by the trigger component to transmit a location recovery signal to enable the corresponding coupled landing floor information component to transmit the floor location information of the calling component to the elevator control device; wherein the elevator shaft further comprises a dummy landing without the calling component and the sensing component. ### Claim 14 (depends on 13) The elevator system according to claim 13, wherein the calling component is coupled to the sensing component via an outgoing communication line of the calling component. ### Claim 15 (depends on 13) The elevator system according to claim 13, wherein the calling component comprises a floor location information transmission module configured to receive the location recovery signal transmitted by the sensing component and to transmit the floor location information of the calling component to the elevator control device. ### Claim 16 (depends on 13) The elevator system according to claim 13, wherein the elevator control device is further configured to determine that a landing where the elevator car is correspondingly located is a dummy landing when the sensing component is not detected. ### Claim 17 (depends on 13) The elevator system according to claim 13, wherein the trigger component comprises a magnetic stripe, and the sensing component comprises a magnetic induction sensor or a reed switch; or the trigger component comprises a light shielding plate, and the sensing component comprises a photoelectric switch. ### Claim 18 (depends on 13) The elevator system according to claim 13, wherein the number of landings in the elevator system is less than or equal to 6. ### Claim 19 A location recognition method for an elevator system, wherein the elevator system comprises: an elevator car; an elevator shaft comprising a plurality of landings; and an elevator control device configured to at least control a movement of the elevator car within the elevator shaft; a location recognition system comprising: a calling component arranged correspondingly on each of the landings, each of the calling components having floor location information of the corresponding landing; a sensing component arranged corresponding to the calling component of each landing and coupled to the calling component; and a trigger component mounted on the elevator car, wherein the location recognition method comprises: controlling the elevator car to move until it moves to a landing having the sensing component, and triggering the sensing component by the trigger component; and transmitting the floor location information of the calling component coupled correspondingly to the triggered sensing component as the current location information of the elevator car to the elevator control device. ### Claim 20 (depends on 19) The location recovery method according to claim 19, wherein the elevator shaft further comprises a dummy landing without the calling component and the sensing component; and in the location recovery method, a landing where the elevator car is correspondingly located is determined to be a dummy landing when the sensing component is not detected. ### Claim 21 An elevator system comprising: an elevator car; an elevator shaft comprising a dummy landing and a plurality of landings; an elevator control device configured to at least control a movement of the elevator car within the elevator shaft; and a location recovery/recognition system comprising: a landing floor information component arranged correspondingly on each of the plurality of landings and having floor location information of the corresponding landing; a sensing component arranged corresponding to each landing floor information component and coupled to the landing floor information component; and a trigger component mounted on the elevator car, wherein the dummy landing is not provided with the landing floor information component and the sensing component; wherein the sensing component is capable of being triggered by the trigger component to transmit a location recovery signal to enable the corresponding coupled landing floor information component to transmit the floor location information of the landing floor information component to the elevator control device. ### Claim 22 (depends on 21) The elevator system according to claim 21, wherein the elevator control device is further configured to determine that a landing where the elevator car is correspondingly located is a dummy landing when the sensing component is not detected. ### Claim 23 (depends on 21) The elevator system according to claim 21, wherein the landing floor information component comprises a calling component. ### Claim 24 (depends on 23) The elevator system according to claim 23, wherein the calling component is coupled to the sensing component via an outgoing communication line of the calling component. ### Claim 25 (depends on 21) The elevator system according to claim 21, wherein the landing floor information component comprises a floor location information transmission module configured to receive the location recovery signal transmitted by the sensing component and to transmit the floor location information of the landing floor information component to the elevator control device. ### Claim 26 (depends on 21) The elevator system according to claim 21, wherein the trigger component comprises a magnetic stripe, and the sensing component comprises a magnetic induction sensor or a reed switch; or the trigger component comprises a light shielding plate, and the sensing component comprises a photoelectric switch. ### Claim 27 (depends on 21) A method for recognizing a dummy landing of the elevator system of claim 21, wherein a landing where the elevator car is correspondingly located is determined to be a dummy landing when the sensing component is not detected.