Abstract: A system for controlling access to an access-restricted zone in a building includes a transmitting device transmitting a first radio signal, a receiving device for radio signals, a control device and a signal processing device communicatively connected to the receiving and control devices. The signal processing device determines a first channel impulse response based on the first radio signal received by the receiving device and a second channel impulse response based on a second radio signal received by the receiving device. The second radio signal is transmitted from a first mobile electronic device of a first user. The signal processing device determines a degree of similarity by evaluating the first and second channel impulse responses. The degree of similarity indicates how similar the first and second channel impulse responses are to one another. The control device initiates a building action if the degree of similarity meets a specified rule.

Abstract: A method and a device for determining an operating state of an elevator system include determining a current/time profile of a current supplied to the elevator system via a power supply line, identifying at least one current profile segment of the current/time profile, and deriving a current profile pattern of the identified current profile segment. The operating state of the elevator system is determined based on comparing the current profile pattern to at least one reference pattern. The method and the device may also be easily used by personnel without electrical training and may be used in elevator systems that are not known in detail.

Abstract: An elevator car load measurement system for determining a load of an elevator car includes a plurality of at least two force sensors that are daisy-chained and connected to a controller for determining the load. Each force sensor measures a force exerted by the elevator car on the respective force sensor and generates a frequency signal with a square-wave form, wherein the frequency signal is proportional to the respective measured force. At least one of the force sensors adds a first frequency signal received from the previous force sensor along the daisy chain a second frequency signal generated by the at least one force sensor to generate a frequency sum signal, the last of the force sensors in the daisy chain forwards the frequency sum signal to the controller.

Abstract: A temporary platform for assembling elevator equipment in an elevator shaft is arranged substantially in the region of a shaft opening, such that the platform partially sits on a floor surface of the building and partially protrudes into the elevator shaft. The platform includes a bottom frame and bottom plates that lie on or are inserted into the bottom frame. The bottom frame also includes two lateral bottom bars, at least one front and one rear transverse bar that interconnect the two lateral bottom bars, and at least two intermediate bars that are arranged parallel to the two lateral bottom bars. The two intermediate bars are supported substantially by the front and the rear transverse bars.

Abstract: A tool for replacing an escalator drive shaft comprises a first tool and a second tool. One side of the first tool is adapted to be assembled on an original shaft adapter, and the other side of the first tool is adapted to be assembled on a new shaft adapter. The second tool is adapted to be assembled on the first tool. A central axis of the first tool coincides with a central axis of the original shaft adapter, a central axis of the second tool coincides with the central axis of the first tool, and the central axis of the first tool coincides with a central axis of the new shaft adapter. A positioning reference of the original drive shaft is accurately transferred to the new drive shaft by the first and second tools, so that the new drive shaft may be accurately assembled to the position of the original drive shaft with respect to the truss after replacement.

Abstract: This application relates to a method and an apparatus for monitoring a state of a passenger transport system such as, for example, an escalator. The method includes monitoring the state of the passenger transport system using an updated digital double data record that reflects characterizing properties of components of the passenger transport system in an actual configuration of the passenger transport system in a machine-processable manner after the assembly and installation thereof in a building. The updated digital double data record can be obtained, for example, by accurately surveying the passenger transport system and using signal values from sensors housed in the passenger transport system, and allows conclusions as to the present or future state of the passenger transport system, based on which maintenance measures can be planned efficiently and adequately.

Abstract: A mounting system has a mounting device with a carrier component and a mechatronic installation component, a displacement component arranged above the mounting device in an elevator shaft and a support member connected between the carrier component and the displacement component. The displacement component displaces the mounting device in the shaft using the support member, wherein the carrier component is supported by an upper support roller on a support wall of the shaft during the displacement in the shaft. The support member generates a diagonal pull perpendicular to the support wall surface. The mounting system also has a compensating element that counteracts a tilting of the carrier component about the upper supporting roller perpendicular to the support wall during the displacement in the shaft.

Abstract: A screwing device includes a screwdriver and a connection element for coupling the screwdriver to a robot arm. The connection element has a first robot-side transmission element, a second tool-side transmission element, a restoring element arranged between the first and second transmission elements, and a distance measuring element. The two transmission elements can be moved towards each other against a restoring force of the restoring element in an actuation direction. The distance measuring element measures a distance that represents the spacing between the transmission elements in the actuation direction and is used to control the actuating force acting on the screwdriver.

Abstract: An elevator car has a balustrade arranged on a roof of the elevator car, wherein the balustrade includes posts, that are attached on a horizontal upper side of the roof, and post-connecting crossmembers. For each post, a docking element is arranged on the upper side of the roof, and the post can be docked on the docking element. The docking element has form-fitting elements in the form of fingers for accommodating the post in a form-fitting manner and the post has slots or apertures, that are complementary to the fingers, the fingers engaging in the slots or the apertures. The docking element is a flattened component made up of two stacked plates and is screwed to the roof. The balustrade is secured by obliquely running supporting profiles extending between the handrail and the roof.

Abstract: An elevator installation and a method of operating the elevator system for temporary transportation of an overload within the elevator installation includes a car and a counterweight interconnected by one or more suspension ropes engaging a traction sheave that is driven by a motor. The traction between the suspension ropes and the traction sheave is enhanced independently of the counterweight for intended overload operation.

Abstract: A system and method for determining an elevator car position uses position markers situated in the elevator shaft and each assigned a discrete car position, first and second detection devices on the elevator car detecting first and second position markers respectively, and an evaluation unit that determines first and second discrete car positions based on the detected first and second position markers respectively. A single interpolation device of the position determining system determines first and second interpolated car positions. The evaluation unit determines first and second car positions based on the first and second discrete car positions and the first and second interpolated car positions respectively. The interpolation device generates an interpolation parameter that characterizes a position of the first detection device relative to the first position marker and determines the first and second interpolated car positions on the basis of the interpolation parameter.

Abstract: An access control system receives a device-specific identifier of a mobile electronic device and an electronic reference template for facial parameters of a user. The reception takes place when the mobile device is located in a public zone, from which the user can request access to an access-restricted zone. A memory unit stores the identifier of the mobile device and the reference template, which are received by a transmitting and receiving unit, as belonging to the user present in a public zone. An image processing unit generates a real-time template for facial features of the user based on an image of the user when the user requests access to the access-restricted zone. It determines if the real-time template matches a reference template stored in the memory unit to a defined degree, wherein the user is recognized as an access-requesting user in the event of a match.

Abstract: A method and system for inspecting and monitoring an elevator installation includes sending an autonomous flying object having at least one sensor to the elevator installation, and granting access to a hoistway of the elevator installation to the autonomous flying object. The autonomous flying object is positioned within the hoistway, and data collected by the associated sensor is sent to a remote elevator service center. The autonomous flying object and the associated sensor can be used to monitor and inspect the elevator installation on a temporary basis, for example for a specific number of hours, days or weeks. Once the autonomous flying object has gained access to the hoistway, the elevator installation can resume normal operation thereby keeping downtime to a minimum. After completing its tasks at one elevator installation, the autonomous flying object can be directed by the remote elevator service center to monitor and inspect another elevator installation.

Abstract: An elevator system includes first and second elevator cars movable vertically in a first elevator shaft, a closed support belt routed around lower and upper deflection rollers, a drive machine driving the support belt, and an actuable coupling device arranged on each of the first and second elevator cars. The support belt has first and second coupling elements to and from which the coupling devices can be coupled and decoupled whereby a drive connection between the respective elevator car and the support belt can be established and released. A coupled elevator car is moved in the first elevator shaft by the support belt driven by the drive machine. The coupling elements are arranged such that they are not routed around the deflection rollers during movement of the first elevator car from a lower end position to an upper end position or vice versa.

Abstract: A method for monitoring an elevator system utilizes a mobile terminal device having at least one sensor to collect measurement values in an elevator car. The mobile terminal device is carried by a passenger of the elevator system. The collected measurement values are transmitted by the mobile terminal device to a central evaluation unit where they are evaluated. The mobile terminal device activates a measurement mode when it detects that it is located in a region of a shaft door of the elevator system.

Abstract: An elevator door arrangement is monitored wherein the elevator door arrangement includes at least one door wing and an electric actuator for displacing the door wing in at least one of an opening direction and a closing direction during a door motion event. A method for performing the monitoring includes a learning phase and an application phase. During the learning phase, different types of door motion events are identified and for each type of event a reference motion event duration is determined. During the application phase, a door arrangement operation is observed such as to detect door motion events and the different types of door motion events are distinguished upon comparison of the reference motion event durations with actual motion event durations measured during the application phase. Using the method, door motion events in an elevator may be recognized and monitored in an automatic manner.

Abstract: A working device for carrying out fitting or maintenance work in an elevator shaft includes at least one working platform having a standing surface and a railing. The standing surface affords space for at least one person and the railing at least partially encloses the standing surface. The working device also includes at least one additional platform that is attachable to the railing of the working platform, and wherein the additional platform affords an additional standing surface for at least one person. The additional standing surface is arranged above the railing of the working platform.