An elevator system includes a travelling cable connected to an elevator car and to a hoistway wall. The travelling cable includes an electric conductor and/or a data carrier operatively connected at a first end to a feed source and at a second end to service appliances of the elevator car. A protective layer includes an outer diameter and surrounds the electric conductor and/or data carrier. A duct is connected at a first open end to a fluid source and at a second openable end to the elevator car. A sensor system is configured for detecting swaying amplitude of the travelling cable. A microprocessor is associated to the sensor system and to the fluid source. The microprocessor is configured for receiving swaying amplitude data from the sensor system and for operating the fluid source when the swaying amplitude exceeds a predetermined threshold.

The present invention relates to a method, a system and a computer program product for detecting and/or predicting need for elevator maintenance. A first digital twin of the elevator is generated using data collected by one or more sensors of an unmanned aerial vehicle (UAV) operating within the elevator shaft. One or more threshold values are defined for parameters associated with one or more components of the elevator appearing in the first digital twin. At least one second digital twin of the elevator is generated using data collected by one of more sensors of an unmanned aerial vehicle (UAV) within the elevator shaft. Each parameter of the elevator in the at least one second digital twin is compared to the respective one or more first threshold values. A request for maintenance of the one or more components of the elevator is automatically triggered if any one of the compared parameters meets or goes beyond the respective first threshold value.

A method for generating a representation of an elevator rope includes determining a first edge and a second edge of the elevator rope from measurement data obtained from consecutive measurement instances; and generating a representation of the elevator rope by combining the measurement data of the consecutive measurement instances in accordance with the determined first edge of the elevator rope and the determined second edge of the elevator rope. Some aspects relate to a control unit and a computer program product.

An elevator rope monitoring device includes at least one source of electromagnetic radiation for emitting a radiation beam, at least one sensor for receiving at least part of an emitted radiation beam, a control unit for detecting an abnormality of an elevator rope arranged to travel between the at least one source of electromagnetic radiation and the at least one sensor by analyzing measurement data received from the at least one sensor. A method, a computer program product and an elevator system are also disclosed.

A rotating movable body for a wire rope includes a rotating portion through the interior of which a wire rope passes, the wire rope being formed by twisting together eight strands, and rotary plates provided on the rotating portion so as to engage with parts of the outer shape of the wire rope, wherein the rotary plates are arranged at a predetermined interval in the extension direction of the wire rope, and in a state where each of the plurality of strands is in contact with one of the rotary plates, the rotating portion moves in the extension direction of the wire rope and rotates so as to follow the twist of the strands.

An illustrative example embodiment of monitoring device includes a rigid central portion made of a first material and a resilient outer portion made of a second material. The central portion defines a traction surface that is configured to receive an elevator tension member. The outer portion defines an engagement surface that is configured to secure the sheave liner to an elevator sheave.

The present invention generally relates to the detection of the discard state of high-strength fiber ropes. The invention relates to a device for detecting the discard state of high-strength fiber ropes for various operating conditions, wherein a rope core of the fiber rope is sheathed with a rope sheath which is intended to wear more quickly than the rope core, comprising an optical detection device for detecting the rope surface and/or a load spectrum counter for detecting the load cycles to which the fiber rope is subjected, and on the other hand to a lifting gear such as a crane comprising such a device. According to the invention, there is provided a detection device for detecting the light absorption coefficient and/or the degree of reflection of the rope sheath and an adaptation device for adapting the algorithm, by means of which the discard state is determined, in dependence on the detected light absorption coefficient and/or the detected degree of reflection.

The present invention relates to a high-strength fibre rope for hoisting equipment like cranes having a rope core (11) comprising high-strength synthetic fibres or strands (4) as well as a sheathing (2) surrounding the rope core (11) and indicating wear, wherein the sheathing (2) has at least a sheath layer, in which the synthetic fibres having different wear resistance and/or tensile strength and/or bending fatigue are interwoven with each other.

The present invention provides a compensation chain stabilizing apparatus and method, and an elevator shaft and elevator system having the same. The compensation chain stabilizing apparatus for an elevator includes a magnetic field generating device, which is configured to generate a magnetic field to limit shaking of the compensation chain. The elevator shaft and elevator system according to embodiments of the present invention include the compensation chain stabilizing apparatus according to the embodiments of the present invention. The apparatuses and methods of the present invention can suppress shaking of the compensation chain as much as possible, and avoid other problems related to the shaking of the compensation chain.

A belt includes one or more tension members extending along a length of the belt, a jacket at least partially enclosing the plurality of tension members, and one or more layers of one or more of a fluorescent, absorbing, or reflecting material located in the belt such that when subjected to a light source, an indication of fluorescence or absorbance or reflection of the one or more layers of fluorescent or absorbent or reflective materials is indicative of a wear condition of the belt.