A method includes transmitting electromagnetic radiation towards a rope with a transmitter, receiving electromagnetic radiation reflected or emitted from the rope with a detector, performing a mathematical transformation of the output signal of the detector with a processing unit for decomposing the output signal into the frequencies that make it up, and determining the wavelengths of the electromagnetic radiation that have been absorbed by at least one substance on the rope and the amount of the absorption of said wavelengths in order to determine the amount and the content of the substance on the rope.

An elevator rope monitoring device, provided with: line sensor cameras 1a, 1b for imaging the entire circumference of the traveling elevator rope 5; a speed/position detecting device 4 for detecting the traveling speed and traveling position of the elevator rope 5; an image recording part 3a for inputting the image acquired by the line sensor cameras 1a, 1b in association with the traveling position of the elevator rope 5 detected by the speed/position detecting means 4; an image creating part 3b for creating an entire circumferential image of the elevator rope 5 from the image imaged by the line sensor cameras 1a, 1b; and an image processing part 3c for detecting an abnormality in the elevator rope 5 by analyzing the entire circumferential image.

An elevator rope monitoring device, provided with: line sensor cameras 1a, 1b for imaging the entire circumference of the traveling elevator rope 5; a speed/position detecting device 4 for detecting the traveling speed and traveling position of the elevator rope 5; an image recording part 3a for inputting the image acquired by the line sensor cameras 1a, 1b in association with the traveling position of the elevator rope 5 detected by the speed/position detecting means 4; an image creating part 3b for creating an entire circumferential image of the elevator rope 5 from the image imaged by the line sensor cameras 1a, 1b; and an image processing part 3c for detecting an abnormality in the elevator rope 5 by analyzing the entire circumferential image.

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.

A holographic detection system for a steel wire rope, having a detection device, a stroke metering device, a data acquisition and conversion workstation, an alarm controller, and a terminal control master station is provided. The detection device further specifically has a steel wire rope electromagnetic detection device, a steel wire rope machine vision damage recognition device, a steel wire rope machine vision diameter measurement device, and a damage location marking device. The holographic detection system for a steel wire rope may perform comprehensive evaluation on the damage situation of the steel wire rope and refine damage data information, thereby comprehensively improving the refinement degree of detection and the detection accuracy.

Elevator inspection systems having an elevator car moveable within an elevator shaft, a camera mounted to the elevator car and operable to inspect components of an elevator system, at least one hidden-component located within the elevator shaft, wherein the at least one hidden-component is a component of the elevator system that is located such that the camera cannot achieve direct, line-of-sight inspection of the hidden-component, and at least one mirror fixedly mounted to the elevator shaft and positioned such that when the camera views the at least one mirror, the camera can capture a reflected image of the at least one hidden-component.

An elevator arrangement, comprising at least one rope connected with an elevator car; a rope wheel arrangement comprising at least one rope wheel around which the rope passes turning around an axis, which extends in width direction of the rope; and a rope position detector arranged to detect displacement of the rope over at least one limit position and to trigger one or more predetermined actions in response to detecting displacement of the rope over a limit position. The rope is arranged to pass around a rope wheel turning around an axis, which extends in width direction of the rope, and the rope position detector is arranged to detect displacement of the rope over a limit position in thickness direction of the rope at a detection point, and to trigger one or more predetermined actions in response to detecting displacement of the rope in its thickness direction over the limit position, said limit position being on the opposite side of the rope than said rope wheel.

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.

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 an apparatus for recognizing the replacement state of a high-strength fiber rope for lifting gear such as cranes as well as to a lifting gear such as a crane in which such a high-strength fiber rope is installed. It is the underlying object of the present invention to provide an improved apparatus for determining the replacement state of a high-strength fiber rope and to provide improved lifting gear having such a fiber rope that avoid the disadvantages of the prior art and further develop the latter in an advantageous manner. To be able to more easily determine the respective degree of damage of the jacket and thus the closeness to the imminent replacement state of the rope, the apparatus is provided with a reference damage memory in which reference representations of the rope with different degrees of damage to the jacket of the rope are contained to allow for an optical comparison of an actual image of the rope with the stored reference representations and thus, determination of the replacement state.