Proper use of a remote monitoring function is realized in an elevator-control-device that monitors an elevator. An elevator-control-device is connected with a remote-monitoring-server that remotely monitors an elevator, via a communication network. The elevator-control-device includes a processor that performs a monitoring-control-process for monitoring the elevator, and a memory. The memory stores a communication function in which a control program for communicating with the remote-monitoring-server for the elevator is stored, a remote-monitoring-function in which a control program for the monitoring-control-process is stored, and a maintenance terminal function in which a control program for connection with a maintenance terminal is stored. The remote-monitoring-function is encrypted and is stored in the memory. In a case where the encrypted remote-monitoring-function is executed, the processor receives a decryption key of the remote-monitoring-function from the remote-monitoring-server by using the communication function, decrypts the remote-monitoring-function by using the decryption key, and executes the monitoring-control-process.

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.

A position-determination system for an elevator uses a camera arranged on an elevator car, which camera has a sensor with a defined number of light-sensitive pixels for generating image data of a surface structure of hoistway material arranged along a travel path of the elevator car. An analysis unit, based on the image data, determines a position and/or velocity of the elevator car. The position-determination system recognizes a reference pattern with a specified dimension which lies in a capturing range of the camera, wherein, based on the reference pattern, the analysis unit performs a scaling of the image data.

An elevator system (34) comprises a plurality of elevators (1) each of the elevators (1) comprising: a diagnostic unit (17) which is configured for running at least one diagnostic routine checking components of the elevator (1) and providing elevator operation and diagnosis data; a communication unit (30), which is configured for transmitting the elevator operation and diagnosis data provided by the diagnostic unit (17) to a remote diagnostic system (40); and for receiving control commands from said remote diagnostic system (40); and a control unit (14), which is configured for executing the control commands received by the communication unit (30). The elevator system (34) further comprises a diagnostic system (40) comprising at least one data receiving unit (42), which is configured for receiving the elevator operation and diagnosis data transmitted from the communication unit (30); at least one storage unit (44), which is configured for storing elevator operation and diagnosis data; at least one analyzing unit (46), which is configured for automatically analyzing the elevator operation and diagnosis data received by the at least one receiving unit (42) in order to detect a malfunction of an elevator (1); and at least one instruction unit (48), which is configured for sending instructions to the communication unit (30) of an elevator (1), for which a malfunction has been detected, instructing the control unit (14) of said elevator (1) to perform at least one specific action in order to overcome a detected malfunction.

In a rope of a lifting device, particularly of a passenger transport elevator and/or freight transport elevator, the width of which rope is greater than the thickness in the transverse direction of the rope, which rope includes a load-bearing part in the longitudinal direction of the rope, which load-bearing part includes carbon-fiber reinforced, aramid-fiber reinforced and/or glass-fiber reinforced composite material in a polymer matrix, and which rope includes one or more optical fibers and/or fiber bundles in connection with the load-bearing part and the optical fiber and/or fiber bundle is laminated inside the load-bearing part and/or the optical fiber and/or fiber bundle is glued onto the surface of the load-bearing part and/or and that the optical fiber and/or fiber bundle is embedded or glued into the polymer envelope surrounding the load-bearing part, as well as to a condition monitoring method for the rope of a lifting device.

The invention relates to a method for managing usage data of an elevator system (100) operating in a construction time use (CTU) mode. The method comprises: operating (210) the elevator system (100) in the CTU mode, obtaining (220) statistical usage data of the elevator system (100), comparing (230) the obtained statistical usage data to reference data, detecting (240) that the obtained statistical usage data deviates at least partly from the reference data, and generating (250) at least one control signal comprising an indication of the detected deviation to at least one operator system (114) in response to the detection of the deviation. The invention relates also to a computing unit (112) and an elevator system (100) for managing usage data of an elevator system (100),

A method for refinishing a surface structure of shaft material of an elevator, which extends along a shaft, enables the use of image data to determine an absolute position and/or speed of an elevator car. The elevator includes the elevator car, which is movable in the shaft, a camera, which is arranged at the elevator car and generates the image data from the surface structure, and an evaluating unit, which determines the absolute position and/or the speed of the elevator car from the image data. The surface structure is refinished at least locally in order to increase a distinctiveness of the surface structure in the image data. The shaft material can be, for example, a guide rail, a fastening element of the guide rail, or a shaft wall.

An elevator system includes a car, a main rope, a car, a detector, and a sway detection unit. The car moves vertically. The main rope moves as the car moves. The car moves vertically. The detector is provided on the car. The detector detects the position of the main rope. The sway detection unit detects, on the basis of the position detected by the detector, that abnormal swaying requiring a control operation is occurring in the main rope.

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.