Abstract: A door system comprising a sensor device for monitoring vertical door edges. The sensor device includes a transmitter that generates a light beam that runs along the vertical door edge, and a receiver to receive the light emitted by the transmitter. According to the invention, an element of the sensor device is mounted in the region of the base, preferably in or on the base in front of a vertical door edge.

Abstract: A device with a label is proposed wherein image information, in particular information about the device, is provided in the label. The label includes a display unit with a display area. Electronic image information can be written in the display area in a manner visible for a user, wherein the written image information will remain on the display area even when the display unit is in a powerless state. The image information in the display area can be replaced by other image information by electronic means. A control unit is provided for electronic writing and/or replacement of image information in the display area. Furthermore, at least one status feature regarding the control unit's own mode of operation and/or information which reflects this mode of operation can be displayed in the display area.

Abstract: A safety system for safeguarding a moving, guided motion element against unwanted collisions with an object located on a motion path in the direction of motion of the motion element is proposed, which safety system comprises an object-detection device for detecting an object in an area of the motion element. The object-detection device can be blocked with respect to object detection by a motion of the motion element, and has an electronic unit with which the motion of the motion element can be controlled and which is configured to assign a blocked state to the object-detection device when the motion element approaches, in which blocked state an object or motion element does not trigger a safety mode, wherein shut-off mechanism are provided which, when a shut-off signal coming from the motion element is detected, transfer at least part of the object-detection device into the blocked state.

Abstract: The invention proposes a sensor array having a plurality of sensor devices comprising a source of electromagnetic radiation, a receiver for the electromagnetic radiation and a control device, the control device being designed to use the source to emit electromagnetic radiation and being designed to determine a distance covered by electromagnetic radiation, which is emitted by the source, from a reflection surface of an object to the receiver by evaluating the reflected radiation. According to the invention, the sensor devices of the plurality of sensor devices operate at different frequencies or using time-division multiplexing. The invention also proposes a sensor device for a sensor array, the control device being designed to measure the distance at different frequencies or using time-division multiplexing.

Abstract: A device for controlling a driven movement element with an electronic unit is proposed, which comprises a transmitter for electromagnetic radiation, for example, light, in particular infrared light, and a receiver for electromagnetic radiation emitted by a transmitter for the detection of objects on a propagation path between transmitter and receiver. According to the invention, the electronic unit is designed to detect a temporal change in at least one feature derived from the received electromagnetic radiation and, upon a detection of a change in the at least one feature that is comparatively slow over time, to output a signal that is associated with a detection of smoke.

Abstract: A sensor device including a source for electromagnetic radiation, a receiver and a control device, the control device being designed for emitting electromagnetic radiation by means of the source and for determining a distance that is covered by the electromagnetic radiation emitted by the source from a reflection surface of an object to the receiver, doing so by evaluating a propagation time of the radiation or a phase of an oscillation modulated onto the radiation. According to the invention, the control device provides an economy mode in which the power of the source is lower in a prescribed time interval by comparison with a normal object detection mode, means being provided to ensure switching back into the normal object detection mode in the event of a predefined object situation.

Abstract: A sensor device including a source for electromagnetic radiation, a plurality of receivers for the electromagnetic radiation, and an electronics unit designed to transmit electromagnetic radiation by means of the source and to determine a distance which the electromagnetic radiation emitted from the source travels from the reflection surface of an object to respective receivers by evaluation of the delay time of the electromagnetic radiation and/or the phase of an oscillation modulated on to the electromagnetic radiation. The electronics unit for the detection of reflective objects, which are like floating parts and are distributed in three dimensions in a medium, is able to determine from the measured distances a first group of distances which fit a predetermined distribution, and, if there is more than one group member, to emit a signal which is associated with the detection of reflective objects which are like floating parts.

Abstract: The invention proposes a sensor array having a plurality of sensor devices comprising a source of electromagnetic radiation, a receiver for the electromagnetic radiation and a control device, the control device being designed to use the source to emit electromagnetic radiation and being designed to determine a distance covered by electromagnetic radiation, which is emitted by the source, from a reflection surface of an object to the receiver by evaluating the reflected radiation. According to the invention, the sensor devices of the plurality of sensor devices operate at different frequencies or using time-division multiplexing. The invention also proposes a sensor device for a sensor array, the control device being designed to measure the distance at different frequencies or using time-division multiplexing.

Abstract: A sensor device including a source for electromagnetic radiation, a receiver and a control device, the control device being designed for emitting electromagnetic radiation by means of the source and for determining a distance that is covered by the electromagnetic radiation emitted by the source from a reflection surface of an object to the receiver, doing so by evaluating a propagation time of the radiation or a phase of an oscillation modulated onto the radiation. According to the invention, the control device provides an economy mode in which the power of the source is lower in a prescribed time interval by comparison with a normal object detection mode, means being provided to ensure switching back into the normal object detection mode in the event of a predefined object situation.

Abstract: A sensor device including a source for electromagnetic radiation, a plurality of receivers for the electromagnetic radiation, and an electronics unit designed to transmit electromagnetic radiation by means of the source and to determine a distance which the electromagnetic radiation emitted from the source travels from the reflection surface of an object to respective receivers by evaluation of the delay time of the electromagnetic radiation and/or the phase of an oscillation modulated on to the electromagnetic radiation. The electronics unit for the detection of reflective objects, which are like floating parts and are distributed in three dimensions in a medium, is able to determine from the measured distances a first group of distances which fit a predetermined distribution, and, if there is more than one group member, to emit a signal which is associated with the detection of reflective objects which are like floating parts.

Abstract: A device for controlling a driven moving element including an electronic unit with an object sensor. According to the invention, the electronic unit is designed, by means of the object sensor, to determine an object distance between the driven moving element and an object in the region of the moving element and to control the movement of the moving element depending on said object distance.

Abstract: The invention relates to a method for the contactless measurement of an object in at least one dimension. An object is scanned in a spatially restricted effective zone of a scanning beam field and the size of the object in terms of the measured dimension is deduced by the detection of one or more interruptions in the scanning beams. The scanning beam field is constructed from a number of directly addressable individual beams. The beam-assisted scanning of the spatially restricted effective zone of the scanning beam field is carried out according to a predefinable pattern of steps, using a non-linear soiling method.

Abstract: The invention relates to a method for the contactless measurement of an object in at least one dimension. An object is scanned in a spatially restricted effective zone of a scanning beam field and the size of the object in terms of the measured dimension is deduced by the detection of one or more interruptions in the scanning beams. The scanning beam field is constructed from a number of directly addressable individual beams. The beam-assisted scanning of the spatially restricted effective zone of the scanning beam field is carried out according to a predefinable pattern of steps, using a non-linear soiling method.

Abstract: The described safety mechanism is embodied for elevator systems with an elevator car, which can be displaced in an elevator shaft. The entrances to the elevator shaft and to the elevator car each have at least one sliding door, which is automatically operable by a drive mechanism, preferably arranged on the elevator car. At least one detector device is provided at each sliding door, which is placed in the area of a pinching edge between a sliding door and a door jamb, and/or between two adjoining sliding door panels. Depending on the detected state of the monitored areas, the detector device generates a door release signal, or provides the interruption of the drive mechanism for opening the sliding door. The signals from the detector devices at the sliding doors of the elevator shaft can be received as a function of the position of the elevator car.

Abstract: The described safety mechanism is embodied for elevator systems with an elevator car, which can be displaced in an elevator shaft. The entrances to the elevator shaft and to the elevator car each have at least one sliding door, which is automatically operable by means of a drive mechanism, preferably arranged on the elevator car. At least one detector device is provided at each sliding door, which is placed in the area of a crushing edge between a sliding door and a door jamb, and/or between two adjoining sliding door panels. Depending on the detected state of the monitored areas, the detector device generates a door release signal, or provides the interruption of the drive mechanism for opening the sliding door. The signals from the detector devices at the sliding doors of the elevator shaft can be received as a function of the position of the elevator car.

Abstract: To properly align support elements (17,19), typically support bars or strips of a light curtain formed by a plurality of light beams (21), transmitted between transmitters (13) and receivers (15) on the respective support bars (17,19), a separate alignment light source, typically a laser (29), is provided. The laser (29) projects a light beam (33) to a receiver (35) from one (17) of said bars to the other (19). A counter-directed beam (33') is projected from the other (19) of the bars to the first bar (17). The counter-directed beam (33') spaced from the first direct beam (33), can be generated by a second laser (29'), or by deflecting the received direct beam (33) on or in the second bar (19) by 180.degree. to provide the counter-directed return beam to the first bar (17). This permits rapid alignment of the respective bars, even with respect to five directions of freedom of movement of the respective bars.

Abstract: An optical proximity fuze for detonating the associated projectile or missile at a desired distance from a target is extremely sensitive to interfering effects, for example, to rain drops which simulate a target which is non-existent. To minimize the probability of the optical proximity fuze responding in undesired manner to rain drops and thus to reduce the danger of premature detonation of the projectile or missile due to interfering effects, the optical proximity fuze comprises at least two optical transmitters at each of which there is arranged at least one respective optical receiver. The target distance is simultaneously measured by the at least two optical receivers in several chronological measurements. Detonation is only accomplished when the at least two receivers simultaneously respond.

Abstract: The method of regulation employs a simulation process for at least one state variable of an apparatus to be controlled and regulates the state variable. In the process, a curve of an operating characteristic having its base at an idle state value is traversed up to an operating state value. When re-regulating, the regulation process begins at the current value of the state variable. The value of the regulation variable corresponds to the idle state. This has the advantage of a defined initial point for re-regulation. A regulating device for performing the method of regulation comprises a series circuit containing an input circuit, a regulation circuit with a simulation device for regulating an apparatus as well as a control circuit for possible machines coupled to the apparatus. The simulation device is adjustable according to operating characteristics or apparatus parameters. Another regulating device fulfills the same function while employing a computer and correspondingly modified circuits.

Abstract: The method of regulation employs a simulation process for at least one state variable of an apparatus to be controlled and regulates the state variable. In the process, a curve of an operating characteristic having its base at an idle state value is traversed up to an operating state value. When re-regulating, the regulation process begins at the current value of the state variable. The value of the regulation variable corresponds to the idle state. This has the advantage of a defined initial point for re-regulation. A regulating device for performing the method of regulation comprises a series circuit containing an input circuit, a regulation circuit with a simulation device for regulating an apparatus as well as a control circuit for possible machines coupled to the apparatus. The simulating device is adjustable according to operating characteristics or apparatus parameters. Another regulating device fulfills the same function while employing a computer and correspondingly modified circuits.

Abstract: A length measuring device for thread-like structures, especially textile threads, which are wound onto a cross-wound package or bobbin, possesses a substantially greater accuracy than heretofore known length measuring devices due to a more exact allowance for the geometric and kinematic relationships in the winding device. In particular, the slippage between the cross-wound package or bobbin and the winding drum can be taken into consideration in determining the length of the thread.