Disclosed is an elevator inspection system, the system having: a robotic platform configured to inspect a hoistway; a platform propulsor operationally connected to the robotic platform; and a controller operationally connected to the platform propulsor, wherein the controller is configured to control the platform propulsor to propel the robotic platform vertically within the hoistway.

An elevator diagnosing device includes a hoisting machine including a sheave, around which a middle portion of a main rope suspending an elevator car is wound, and a controller controlling travel of the elevator car by controlling operation of the hoisting machine. The controller includes a car controller performing first travel control causing the elevator car to travel at a first acceleration/deceleration and second travel control causing the elevator car to travel at a second acceleration/deceleration less than the first acceleration/deceleration, a rope feed amount difference detector detecting a difference in feed amount of the main rope by rotation of the sheave when the elevator car travels equal distances under the first and second travel controls, and a determiner determining traction performance of the sheave based on the difference in the amount of feed of the main rope detected by the rope feed amount difference detector.

A method for determining a state of a system for transportation of passengers includes the steps of: receiving condition data of the system, the condition data being generated by a condition sensor adapted for sensing physical conditions of an equipment of the system; receiving environmental data of the system, the environmental data containing information on an influence of an environment of the system on the equipment and/or the condition sensor; weighting the condition data with the environmental data; and determining a state of the equipment based on the weighted condition data.

Disclosed is a car mover, configured for autonomously moving an elevator car along a track beam in a hoistway lane, having: a car mover body; a drive wheel operationally connected a lateral side of the car mover body, and configured to rotate about a drive wheel axis; a first guide wheel operationally connected to the lateral side of the car mover body, wherein the first guide wheel is offset from the drive wheel so that, in operation: the first guide wheel engages a lateral sidewall of the track beam when the drive wheel laterally moves on the track beam, to thereby restrict lateral motion of the drive wheel on the track beam.

An elevator system having an elevator car in an elevator shaft and having a measuring tape in the elevator shaft for determining the position of the elevator car in the elevator shaft. The measuring tape is arranged vertically in the elevator shaft and has optical coding for length measurement. At least one marking element which has optical marking is arranged on the measuring tape. The marking element is fixedly arranged on the measuring tape. A sensor device which comprises a lighting source and a sensor which form a detection field for detecting the measuring tape is attached to the elevator car. The elevator system comprises an evaluation device for decoding the codings in the detection field and a control device for controlling the elevator system as a function of the coding and/or of the position of the at least one marking element on the measuring tape.

In a reference state of a rotation angle detector, plural first output coils include first output coils having the number of windings of Ai and Aj, plural second output coils include second output coils having the number of windings Bk and Bm. The rotation angle detector includes at least one configuration from among: a configuration in which the numbers of windings of the first and second output coils are the same numbers of windings as in the reference state, with the exception that the number of windings Ai is the number of windings Ai±a or the number of windings Aj is the number of windings Aj±a; and a configuration in which the number of windings Bk is the number of windings Bk+b or the number of windings Bm is the number of windings Bm±b.

A method of operating an elevator system is presented. The method comprises controlling, using a controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an internal power source, an elevator car, a drive unit, a power conversion device, and a brake. The method also comprises detecting, using the controller, when an external power source is unavailable; deactivating, using the controller, the power conversion device when an external power source is unavailable; and determining, using the controller, a mode of the elevator car. The mode includes at least one of a motoring mode and a near balance mode. The method further comprises connecting, using the controller, to an internal power source, when at least one of the motoring mode and the near balance mode is determined; and increasing, using the internal power source, voltage of the drive unit.

A method for operating an elevator control system for controlling and monitoring the movements of at least one elevator car when the elevator car approaches individual floors in a building, and in the process stops at a respective floor in a prescribed stopping position, the method including, in conjunction with a floor stop, determining an overall error in the form of a deviation between an actual position of the elevator car and a position of the elevator car assumed as the current position. The elevator control system generates service signals based on a statistical acquisition of several values for the overall error, and/or wherein the overall error is used to ascertain a derivative value, which is taken into account along with the current or stopping position during a comparison between the current position and stopping position performed by the elevator control system for approaching the respective stopping position.

An elevator includes an elevator car; a counterweight; one or more ropes interconnecting the car and counterweight, one end of each rope being fixed to the counterweight, and each rope comprising one or more electrically conductive load bearing members that extend unbroken throughout the length of the rope embedded in a non-conductive surface material; a monitoring circuit comprising at least two of said electrically conductive load bearing members of the one or more ropes connected in series, and one or more connectors mounted on the counterweight and connecting ends of said at least two electrically conductive load bearing members in series, said one or more connectors comprising a switch that is movable between a conductive and a non-conductive state, whereby the state change of the switch is arranged to change conductivity of the monitoring circuit; a monitoring system connected with the monitoring circuit and arranged to monitor the state of the monitoring circuit; and a counterweight position sensor mounted on the counterweight, and arranged to sense position of the counterweight. The switch and the counterweight position sensor are connected, and the state of the switch is arranged to change in response to position change of the counterweight sensed by the counterweight position sensor. The elevator is arranged to perform one or more predetermined actions in response to a state change of the monitoring circuit.

A self-contained data acquisition system for a passenger conveyance system, includes a sensor module for sensing data associated with an entry and exit of each of a multiple of passengers, a location sensor module for sensing a position of the passenger conveyance upon entry and exit of each of the multiple of respective passengers and a processing module operable to use the sensed data from the sensor module and the location sensor module to record passenger data.