US 12,221,320 B2
Automatic detection for abnormal movement of passenger in elevator
Adriaan Joris H. Larmuseau, Shanghai (CN); and Changle Li, Shanghai (CN)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Appl. No. 16/627,053
Filed by Otis Elevator Company, Farmington, CT (US)
PCT Filed Jul. 23, 2018, PCT No. PCT/CN2018/096637
§ 371(c)(1), (2) Date Dec. 27, 2019,
PCT Pub. No. WO2019/015691, PCT Pub. Date Jan. 24, 2019.
Claims priority of application No. 201710599113.1 (CN), filed on Jul. 21, 2017.
Prior Publication US 2020/0277159 A1, Sep. 3, 2020
Int. Cl. B66B 1/34 (2006.01); B66B 1/46 (2006.01); G01S 1/68 (2006.01)
CPC B66B 1/3476 (2013.01) [B66B 1/3461 (2013.01); G01S 1/68 (2013.01); B66B 1/468 (2013.01); B66B 2201/402 (2013.01); B66B 2201/4615 (2013.01); B66B 2201/4638 (2013.01); B66B 2201/4653 (2013.01); G01S 2201/025 (2019.08)] 20 Claims
OG exemplary drawing
 
1. A movement detection system for a passenger, comprising: a first Bluetooth module mounted in an elevator landing area and configured to broadcast a first Bluetooth signal to the elevator landing area, wherein
the movement detection system receives the first Bluetooth signal by a personal mobile terminal carried by the passenger, and generates Bluetooth movement data corresponding to a movement of the passenger in the elevator landing area; and
the movement detection system further comprises:
a movement prediction unit configured to predict, based on the Bluetooth movement data, that the movement of the passenger in the elevator landing area is a normal movement or an abnormal movement;
wherein the movement detection system further comprises a signal strength determination module and a movement tracking module that are disposed in the personal mobile terminal;
wherein:
the signal strength determination module is configured to determine the signal strength of the first Bluetooth signal received by the personal mobile terminal; and
the movement tracking module is configured to track the movement of the passenger in the elevator landing area by means of changes in the determined signal strength of the first Bluetooth signal, and generate the Bluetooth movement data corresponding to the movement.