A system for determining tension in a suspended rope includes an acceleration measuring device for measuring the acceleration of rope movement and an adapter for attaching the acceleration measuring device to the suspended rope. The system optionally includes a user device communicatively coupled to the acceleration measuring device. The user device computes rope tension based on the measured acceleration. The acceleration measuring device and user device can be combined into a single smart device. Examples of the system can accurately determine the tension in ropes used to suspend an elevator cabin, allowing a field technician to tighten the ropes to equal tension and to determine the weight of the cabin. In turn, a smoother and more secure operation of the elevator can be achieved.

An elevator system 2 is provided which comprises: a hoistway 6 accessible by at least one hoistway door 10a, 10b, 10c; at least one elevator car 4 located in the hoistway 6; a hoistway door switch 12a, 12b, 12c associated with the at least one hoistway door 10a, 10b, 10c; at least one inspection switch 16; at least one emergency stop switch 18; and an elevator controller 24. The elevator controller 24 is configured to monitor the hoistway door switch 12a, 12b, 12c, the inspection switch 16 and the emergency stop switch 18 and to prevent inspection mode operation of the elevator car 4 until at least one change of state is detected of each of the hoistway door switch 12a, 12b, 12c, the inspection switch 16 and the emergency stop switch 18.

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 system includes an elevator car within an elevator hoistway; a camera; and an image analysis system in communication with the camera; the camera providing a reference image to the image analysis system; the camera providing a current image to the image analysis system; the image analysis system comparing the current image to the reference image to detect a difference between the current image to the reference image; the image analysis system initiating a maintenance notification in response to the comparing.

A bridge device and a bridging method are used to monitor an elevator. The bridge device includes a jumper for bridging an electric element of the elevator when the elevator works in a first operating mode, a monitoring means monitoring the jumper, and an alarm unit that generates an alarm signal if the monitoring means determines that the element has been bridged by the jumper longer than a predefined time period when the elevator is operated in a second operating mode.

To provide an elevator 3D data processing device that can reduce a load of calculation. The elevator 3D data processing device includes a projection image generating unit that, when 3D data of a shaft of an elevator is aligned with a preset coordinate system, generates a 2D projection image from the 3D data, a projection image feature extracting unit that extracts a feature of the projection image generated by the projection image generating unit, and a reference position specifying unit that specifies a reference position for processing of the 3D data from the feature extracted by the projection image feature extracting unit.

A building settling detection system having at least one sensor configured between a guide rail track of an elevator system and a pit of the elevator system and a controller in communication with the at least one sensor, the controller configured to monitor an output of the at least one sensor and transmit a notification to a remote location when the output of the at least one sensor meets or exceeds a predetermined threshold indicating that the predetermined threshold is met or exceeded.

A method of operating an emergency power supply for an elevator cabin includes determining a remaining power supply capacity of an energy storage device of the emergency power supply, determining a power demand of an electrical consumer, and predicting how long the energy storage device is capable of providing the electrical consumer with power, based on the determined remaining power supply capacity and the determined power demand. An emergency power supply for an elevator cabin includes an energy storage device configured to provide emergency power to an electrical consumer in the elevator cabin, and a control unit. The control unit is configured to control operation of the energy storage device, determine a remaining power supply capacity of the energy storage device, determine a power demand of the electrical consumer, and predict an amount of time for which the energy storage device is able to power the electrical consumer.

A safety device for a path that is traversed to enter a region in which danger to an individual is heightened due to operation of a machine includes at least one sensor installed along the path so as to detect the individual thereat, which compels the sensor to generate a signal. A lockout mechanism is deployed that compels the machine into a non-operational state in response to receiving the signal from the sensor. The lockout mechanism ensures the machine remains in the non-operational state when the signal from the sensor is removed therefrom. A reset circuit is deployed that, in response to activation thereof, compels the lockout mechanism to allow the machine into the operational state from the non-operational state.

A safety system for an elevator that includes at least one control unit, which control unit is operable in at least two different operating modes. The safety system has at least one electronic lock connected with the control unit, and is connectable, or connected, with at least one electronic key. The control unit is programmed, or programmable, in such that, in the presence of a connection between the electronic key and the electronic lock, it is only operable in one operating mode of a first subset of the operating modes and, in the absence of a connection between the electronic key and the electronic lock, it is only operable in one operating mode of a second subset of the operating modes. A maintenance mode is only available in the second subset of the operating modes.