Abstract: A leading closing edge safety arrangement for a vertically movable door device having door panel elements. The leading closing edge safety arrangement includes a sensor arrangement which defines an optical signal path, and an optical signal path interrupting element. The sensor arrangement has a coupling device on a left and a coupling device on the right door side region of the lower door end region. A first one of the coupling devices has a transmitter, and a second one of the coupling devices has a receiver. One or both of the coupling devices has a switching arrangement having a switch which switches the transmitter and/or the receiver so that no current flows therethrough at least in a lower end position of the vertically movable door device.

Abstract: A light grid for mounting on an elevator car door for object detection and for determining periodic door movements, including transmitter elements that emits radiation with a specific intensity, receiver elements for receiving the radiation from an assigned transmitter element, and a control device for evaluating the receiver elements in regard to interruption of the radiation coming from an assigned transmitter element and for outputting a signal for object recognition upon interruption. At least one receiver element is configured to output an intensity value for the received radiation. The control device evaluates the intensity value and distinguishes separate high, medium and low intensity value ranges with high, medium and low intensity values, and performs an alternation phase with at least one alternating from the low via the medium to the low intensity value range and to output a signal in the event of an alternation phase having been recognized.

Abstract: The controller according to the invention is a controller for optimizing the leveling process (leveling) of an elevator car at a stopping point for an elevator having an elevator controller which controls the stop of the car at a stopping point as a function of a specified distance X to the stopping point, wherein the controller is designed, during each of at least two, in particular at least three journeys, to record a set of at least one same measured value, to determine a change dX or a changed distance X? as a function of the set of the current journey and at least one past journey and to output the changed value X? or the difference dX to the specified distance X.

Abstract: A light grid for determining the distance between transmitter and receiver strips, includes a transmitter strip with one or more transmitter elements which emit radiation having a specific intensity, a receiver strip with one or more receiver elements which receive the radiation from an assigned transmitter element, and a control device for controlling the transmitter elements and/or the receiver elements and for evaluating the receiver elements. At least one of the transmitter elements and/or at least one of the receiver elements are configured as qualified transmitter and receiver elements. The control device is configured to control different combinations of intensities and amplification factors of the qualified transmitter and/or receiver elements and to ascertain a distance value as a function of the sum of the resulting intensity values of the controlled combinations.

Abstract: Safety apparatus for an elevator having an elevator car having a presence determination device for determining that one and only one person is present in the elevator car, having a position determination device for determining that the person is in a lying or crouching position and the length of time since the lying or crouching position occurred, and having a relay device for relaying a signal to a supervisory authority. In this scenario, the relay device relays the signal when the presence determination device determines that there is just a single person in the elevator car and the position determination device determines that the person is in the lying or crouching position and a specific length of time has elapsed since the lying or crouching position occurred.

Abstract: Sensor apparatus for an elevator with a hanging position measuring tape for detecting a critical change in length of the position measuring tape comprising a carrier, comprising a carriage on the carrier, comprising a tape holder on the carriage, comprising a tensioning device between the carrier and the carriage in order to be able to tension a secured positioning tape, comprising a detection device for detecting a critical displacement of the carriage on the carrier on the basis of a critical change in length of a position measuring tape to be mounted, and comprising an adjusting device.

Abstract: A light grid for determining the distance between transmitter and receiver strips, includes a transmitter strip with one or more transmitter elements which emit radiation having a specific intensity, a receiver strip with one or more receiver elements which receive the radiation from an assigned transmitter element, and a control device for controlling the transmitter elements and/or the receiver elements and for evaluating the receiver elements. At least one of the transmitter elements and/or at least one of the receiver elements are configured as qualified transmitter and receiver elements. The control device is configured to control different combinations of intensities and amplification factors of the qualified transmitter and/or receiver elements and to ascertain a distance value as a function of the sum of the resulting intensity values of the controlled combinations.

Abstract: The controller according to the invention is a controller for optimizing the leveling process (leveling) of an elevator car at a stopping point for an elevator having an elevator controller which controls the stop of the car at a stopping point as a function of a specified distance X to the stopping point, wherein the controller is designed, during each of at least two, in particular at least three journeys, to record a set of at least one same measured value, to determine a change dX or a changed distance X? as a function of the set of the current journey and at least one past journey and to output the changed value X? or the difference dX to the specified distance X.

Abstract: A security device for an elevator comprising an elevator car comprising a car door, comprising an accelerometer for detecting the vibration of the car door, comprising a pre-evaluation apparatus for determining shaking of the car door on the basis of the comparison of the detected vibration with at least one threshold value, comprising a transmission apparatus for transmitting vibration signals on the basis of the detected vibration to a server, and comprising a server for analyzing the vibration signals, wherein the pre-evaluation apparatus is physically connected to the elevator car, the transmission apparatus then transmits the vibration signals if the pre-evaluation apparatus determines shaking and the server is physically separate from the elevator and weights the transmitted vibration signals and stores and/or outputs the information for the probable cause of the shaking depending on the weighting.

Abstract: Safety apparatus having a presence determination device for determining a person in an elevator car, a stopped state determination device for determining the stopped state of the elevator car, a door state determination device for determining the closed state and the duration of the closed state of the car door of the elevator car, and a relay device for relaying a signal to a supervisory authority. The relay device relays the signal when the door state determination device determines the closed state for the car door, the presence determination device determines a person in the elevator car, and the stopped state determination device determines the stopped state of the elevator car and a specific length of time has elapsed since the stopped state determination device has continuously determined the stopped state of the elevator car.

Abstract: Proposed is a safety installation for industrial doors that are mounted movably between two guide rails, having at least one optical sensor system for recognizing objects, wherein the optical sensor system is mounted in at least one housing able to be fastened in each case to the guide rails. In order to be able to impose lower mounting requirements while keeping at least the same level of safety, the housing and/or at least one of the housings has an acceleration sensor for measuring a vibration and for supplying vibration data from which an evaluation unit evaluates whether the door has left the guide.

Abstract: Safety apparatus for an elevator having an elevator car having a presence determination device for determining that one and only one person is present in the elevator car, having a position determination device for determining that the person is in a lying or crouching position and the length of time since the lying or crouching position occurred, and having a relay device for relaying a signal to a supervisory authority. In this scenario, the relay device relays the signal when the presence determination device determines that there is just a single person in the elevator car and the position determination device determines that the person is in the lying or crouching position and a specific length of time has elapsed since the lying or crouching position occurred.

Abstract: Apparatus for planning maintenance for an elevator having an elevator car having a car door having an accelerometer for detecting the vibration of the car door, having a collecting device that is designed to use the detection to create a vibration profile, having a transmission device for relaying the vibration profile to a server, and having a server for analyzing the vibration profile. The collecting device is connected to the elevator car to determine the deviation of the vibration profile from a reference profile and to take the deviation from at least one threshold or at least one value range as a basis for causing the transmission device to relay the deviation and/or the vibration profile to the server. The server is physically separate from the elevator and is designed to compare the deviation and/or the vibration profile with at least one threshold or at least one value range.

Abstract: Method for monitoring the speed of an elevator car, with the car door in particular unlocked, within the unlocking zone of the elevator shaft, having a first speed-limit curve, having a first switchover event, having a second speed-limit curve, and having a second switchover event. The first speed-limit curve has a range of values between a first maximum value at the entry to the unlocking zone and a first minimum value at the envisaged stopping point. The first switchover event corresponds to the car traveling beyond the stopping point or to a stoppage within the unlocking zone. The second speed-limit curve has a range of values between a second maximum value at the envisaged stopping point and one or two second minimum values at the entry to, and exit from, the unlocking zone. The second switchover event corresponds to a departure signal or to the locking of the car door.

Abstract: The method according to the invention is a method for safeguarding the car of an elevator, which is provided to form regular unlocking zones in the region around the envisaged stopping points at the stories, against unintended movement. The method monitors the speed of the car, the height position of the car in the elevator shaft and the status of the locking of the car door, and identifies possible stopping of the car, the height position of the car outside a regular unlocking zone, and a possibly unlocked state of the car door. A first sub-method of the method forms a temporary unlocking zone when the car stops outside a regular unlocking zone with the car door unlocked, and it assigns the temporary unlocking zone an upper and a lower boundary above and below the position where the car stops.

Abstract: The communication system according to one embodiment for an elevator comprises a bus controller and a plurality of bus nodes. The bus controller periodically sends requests to all bus nodes and receives the responses from the bus nodes. The bus nodes receive requests from the bus controller and send responses to the bus nodes. The bus controller is designed to select a group of bus nodes for each of its requests and to wait for the responses of these bus nodes between two requests.

Abstract: People counting device for an elevator car for determining a person entering or leaving the car, having a presence sensor at the entrance of the car for detecting the presence of a person in the region of the entrance or the passage of a person through the entrance and for outputting a detection signal in the event of presence or passage, having an accelerometer on the car, for detecting the vertical acceleration of the car and for outputting positive and negative acceleration values in relation to the upwards direction of movement of the car, and having an evaluation device that is designed, upon receipt of the detection signal, to receive a series of current acceleration values for a certain duration and to analyze whether one of the acceleration values or the motion profile resulting therefrom exceeds an upper threshold value or falls below a lower threshold value.

Abstract: A light grid for mounting on an elevator car door for object detection and for determining periodic door movements, including transmitter elements that emits radiation with a specific intensity, receiver elements for receiving the radiation from an assigned transmitter element, and a control device for evaluating the receiver elements in regard to interruption of the radiation coming from an assigned transmitter element and for outputting a signal for object recognition upon interruption. At least one receiver element is configured to output an intensity value for the received radiation. The control device evaluates the intensity value and distinguishes separate high, medium and low intensity value ranges with high, medium and low intensity values, and performs an alternation phase with at least one alternating from the low via the medium to the low intensity value range and to output a signal in the event of an alternation phase having been recognized.

Abstract: A sensor for monitoring a monitoring area having a transmitter for transmitting radiation into the monitoring area for reflection at an object in the monitoring area, a test transmitter for transmitting a test signal comprising radiation, a receiver for receiving the radiation of the transmitter that is reflected at the object or the radiation of the test transmitter, and an evaluation device for ascertaining a distance value on the basis of the delay in the transit time or the phase of a modulation between the transmitted and received radiation of the sensor. The sensor further comprises a memory for storing an expectation value for the expected distance value of the received test signal, and a comparison device for comparing a distance value on the basis of the received test signal with the expectation value and for outputting a safety signal on the basis of the comparison.

Abstract: An optoelectronic safety device for monitoring a machine movement includes a detection device and a control device. The detection device includes a transmitter unit which transmits an optical signal having a sequence of signal pulses, each of which has a different pulse intensity, and a receiver unit which receives the optical signal. The control device includes an evaluation unit which evaluates the optical signal received by the receiver unit, a pulse selection index, and a pulse selection unit which changes the pulse selection index if the pulse intensity of one of the signal pulses is outside of an optimal intensity range. The control device enables the machine movement if an intensity of a received signal is within a permissible intensity range, and outputs a trigger pulse to stop the machine movement if the intensity of the received signal is outside of the permissible intensity range.