Method for measuring a lift shaft, control unit for a self-climbing lift, and self-climbing lift

Abstract

The invention relates to a method for measuring a lift shaft (2) by means of a self-climbing lift (1) which rises up as the shaft is built and is intended for transporting a load from one level to another level within a building (3) under construction, the self-climbing lift (1) having a platform temporarily located in the lift shaft (2). The method comprises: recording at least one measured value indicative of a property of the lift shaft (2) by means of a sensor (44) fastened to the platform, while the platform is being moved; and creating a digital model of the lift shaft (2) on the basis of the recorded measured value.

Description

[0001] Method for measuring an elevator shaft, control unit for a climbing lift and climbing lift

[0002] The present invention relates to a method for measuring an elevator shaft using an expandable climbing lift, a control unit for the expandable climbing lift, and the expandable climbing lift. In particular, the present invention relates to a method for measuring the elevator shaft using the expandable climbing lift, the control unit that implements the method, and the expandable climbing lift designed to measure the elevator shaft.

[0003] A climbing lift, also called a self-leveling elevator system or jump lift, can be used during building construction to transport people and / or loads from one existing floor to another within an elevator shaft that has already been started but is not yet completed. This climbing lift mode of operation can also be referred to as "normal" or transport operation of the climbing lift. As the building increases in height, the upper components of the climbing lift can then be gradually positioned higher within the elevator shaft, which can also be referred to as climbing operation of the climbing lift, until the elevator shaft is completed and the climbing lift can be replaced with a "normal" elevator.

[0004] Such a climbing lift is known, for example, from EP 3 548 413 B1. The climbing lift has a protective platform, a machine platform, and an assembly platform. The protective platform can be inserted into the elevator shaft, which is still open at the top, by means of a crane. During normal operation of the climbing lift, the protective platform is fixedly arranged in the elevator shaft. The machine platform is suspended in the elevator shaft by means of a support means on the protective platform in such a way that the machine platform can be displaced vertically in the elevator shaft by means of the support means. For this purpose, the climbing lift has a displacement device that can be arranged on the machine platform and is mechanically coupled to the support means in such a way that the displacement device can move the support means, whereby the machine platform is displaced vertically. An assembly platform can be arranged between the protective platform and the machine platform.The assembly platform is held by the protective platform by means of an additional support member. The assembly platform is suspended in the elevator shaft in such a way that it is vertically displaceable, in particular by means of an additional displacement device coupled to the additional support member. The assembly platform can be used by a technician to perform assembly work in the elevator shaft vertically between the machine platform and the protective platform.

[0005] WO 2020 / 126906 A1 describes a construction site device with a climbing formwork platform and a hoist system. The construction site device is equipped with a 3D camera or a 3D scanner, which can be used to take optical images of reinforcing bars inserted into a future wall section.

[0006] Among other things, there may be a need for a method for measuring an elevator shaft that enables verification, even during the construction of a building having the at least partially completed elevator shaft, of whether the elevator shaft and / or elevator components arranged in the elevator shaft have been installed as intended, properly, and / or correctly. This method also enables simplification and / or automation of the completion of the building, in particular of the elevator shaft, and / or subsequent installation and / or service work. Furthermore, there may be a need for a control unit for a self-contained climbing lift that implements the method.Furthermore, there may be a need for a climbing lift that can be scaled to the building's size and that allows for checking, during the construction of the building, which has the at least partially completed elevator shaft, whether the elevator shaft and / or elevator components arranged in the elevator shaft have been installed as intended, properly, and / or correctly, and / or that allows for simplifying and / or automating the completion of the building, in particular the elevator shaft, and / or subsequent installation and / or service work. Such a need can be met by the subject matter according to the independent claims. Advantageous embodiments are defined in the dependent claims and the following description.

[0007] A first aspect of the invention relates to a method for surveying an elevator shaft using an elongated climbing lift for transporting a load from one floor to another within a building under construction, wherein the climbing lift has a platform temporarily arranged in the elevator shaft. The method comprises: detecting at least one measured value representative of a property of the elevator shaft using a sensor attached to the platform while the platform is being displaced; and creating a digital model of the elevator shaft depending on the detected measured value.

[0008] A second aspect of the invention relates to a control unit for the scalable climbing lift for erecting the climbing lift having an elevator shaft for transporting a load from one floor to another within a building under construction. The control unit comprises: a memory unit for storing the at least one measured value representative of the property of the elevator shaft; and a processor configured to execute the method described above and below.

[0009] A third aspect of the invention relates to the climbing lift in the form of a climbing lift that grows with the building and has an elevator shaft for transporting a load from one floor to another floor within a building under construction. The climbing lift comprises: a first platform that is displaceably arranged in the elevator shaft; a second platform that is mechanically coupled to the first platform by means of a first support means and that is displaceably arranged in the elevator shaft below the first platform; at least one sensor that is arranged on one of the platforms and that is designed such that the measured value representative of the property of the elevator shaft can be detected by means of the sensor while the corresponding platform is displaced; and the control unit described above and below, which is communicatively coupled to the sensor. The elevator shaft is located in a building.The building, and in particular the elevator shaft, may still be under construction, and accordingly, the building and elevator shaft may not yet be completed. For example, the elevator shaft may extend vertically within the building. In this case, moving the platform within the elevator shaft refers to moving the platform vertically within the elevator shaft.

[0010] The climbing lift can also be referred to as a self-contained elevator system. The climbing lift can be used during the construction of the building to transport people and / or loads from one floor of the building to another floor of the building in the elevator shaft that has already been started but is not yet completed. This mode of operation of the climbing lift can also be referred to as "normal" operation or transport operation of the climbing lift. As the building increases in height, the upper components of the climbing lift can then be gradually positioned higher and higher within the elevator shaft, which can also be referred to as climbing operation of the climbing lift, until the elevator shaft is completed and the climbing lift can be replaced with a "normal" elevator.Components of the climbing elevator, such as the aforementioned platforms, are removed when replacing the climbing elevator with a "normal" elevator, so they are only temporarily located in the elevator shaft. The measured value can be recorded during transport operation and / or during climbing operation.

[0011] Recording the measured value while the corresponding platform is being moved makes it possible to record the measured value automatically while the corresponding platform is being moved. Preferably, the measured value is recorded several times, for example continuously, while the platform is being moved, whereby a measurement signal recorded by the sensor can then be representative of a course of the measured value. This repeated recording of the measured value makes it possible to measure the elevator shaft - once it has been completed - and in particular to determine its properties. This means that no separate work step is necessary to measure the elevator shaft, as this happens automatically when the platform is moved and the elevator shaft is completely measured at the latest when the climbing lift is removed from the building. The conventional subsequent measurement of the elevator shaft can then be omitted.This makes it possible to verify, even during the construction of the building that has the at least partially completed elevator shaft, whether the elevator shaft and / or elevator components already installed in the elevator shaft have been installed as intended, properly, and / or correctly. Alternatively or additionally, this early survey of the elevator shaft can simplify and / or automate the completion of the building, in particular the elevator shaft, and / or subsequent installation and / or service work.

[0012] In addition to the one measured value, a series of further measured values ​​can be recorded, in particular while the corresponding platform is being relocated. The further measured values ​​can relate to the same property. Alternatively or additionally, two or more first measured values ​​can relate to a first property of the elevator shaft, and one, two, or more second measured values ​​can relate to a second property of the elevator shaft. Thus, while the corresponding platform is being relocated, two or more properties of the elevator shaft can be determined by recording corresponding first and second or corresponding further measured values ​​and / or by means of corresponding first and second measured value curves.

[0013] The recorded measured values ​​can collectively form the digital model of the elevator shaft. The digital model can thus comprise a digital data set in which several additional measured values ​​are encoded in addition to the single measured value. The digital model of the elevator shaft is representative of the fully surveyed elevator shaft. The digital model of the elevator shaft can also be stored on the storage unit.

[0014] It is also possible for the digital model to be created from the measurement signals in a subsequent step, independent of the climbing lift's control unit. The recorded measurement values ​​can be transmitted to another evaluation unit, for example, via the internet.

[0015] The property of the elevator shaft to be recorded can, for example, be its height, width, depth, or length. The property of the elevator shaft to be recorded can also be the position of a single point or the positions of multiple points on a shaft wall of the elevator shaft. The digital model of the elevator shaft can thus be formed from a so-called point cloud. The property to be recorded can also relate to the positions and / or sizes of one or more elevator components that are permanently arranged in the elevator shaft. Thus, for the purposes of this description, not only the shaft walls of the elevator shaft are assigned to it, but also elevator components that are permanently installed in the elevator shaft. These elevator components can have or be, for example, clamps, brackets, supports, angle brackets, and / or guide rails.The measured value that is representative of the property can therefore be, for example, the height, width, depth or length of the elevator shaft.

[0016] The method can be processed entirely or partially by the control unit of the climbing lift. For this purpose, the control unit can optionally send a displacement signal to the unit responsible for displacing the platform containing the sensor. If, for example, the platform containing the sensor is a safety platform of the climbing lift, it can be displaced using a crane external to the climbing lift, and the displacement signal can be sent to a crane control unit of the crane. If, for example, the platform containing the sensor is a machine platform or an installation platform of the climbing lift, the control unit can send the displacement signal to a displacement device of the climbing lift, for example in the form of a winch, which is responsible for displacing the machine platform or the installation platform.Furthermore, the control unit can send the detection signal to the sensor, which detects the measured value in response to receiving the detection signal. Subsequently, the control unit can receive the measurement signal from the sensor, which the sensor generated and which is representative of the measured value. Furthermore, the digital model can be determined by the control unit.

[0017] The first platform can also be referred to as a protective platform. The first platform can be relocated, for example, by means of the crane, for example during climbing operation of the climbing lift. The climbing lift can have two or more platforms, which will be explained in more detail below. The second platform can be, for example, a machine platform or an installation platform of the climbing lift. The second platform can be relocated, for example, by means of a relocation device of the climbing lift, for example during transport operation or during climbing operation of the climbing lift. If the climbing lift has the machine platform and the installation platform, one of the two platforms can be suspended from the protective platform by means of the first support means and the other of the two platforms can be suspended from the protective platform by means of a second support means.Alternatively, the machine platform and the installation platform can be suspended from the protective platform by means of the first support means, wherein the machine platform can be suspended from the protective platform by means of a first section of the first support means, the installation platform can be suspended from the protective platform by means of a second section of the first support means, and the first and second sections can be separated from one another by a deflection pulley over which the first support means is deflected.

[0018] The climbing lift can additionally comprise, for example, an elevator car, a counterweight, a first displacement device, and optionally a second displacement device and / or a drive machine. During normal operation of the climbing lift, the elevator car can serve to accommodate one or more persons and / or loads. The elevator car can, for example, be suspended below the machine platform on the machine platform in a vertically displaceable manner, for example by means of a third support means that is mechanically coupled to the machine platform. The counterweight can be arranged in the elevator shaft and serve to vertically displace and / or hold the elevator car. The counterweight can, for example, be mechanically coupled to the elevator car via the third support means. For example, the third support means can run from the counterweight to the elevator car via one or more deflection pulleys arranged on the machine platform.

[0019] The first displacement device can, for example, be mechanically coupled to the first support means and serve to move the first support means, whereby the machine platform and / or the installation platform can be displaced vertically. If the installation platform can be displaced vertically independently of the machine platform by means of the second support means, the second support means can be moved by means of the second displacement device in order to displace the installation platform vertically. The drive machine can, for example, be mechanically coupled to the third support means and serve to move the third support means, whereby the elevator car can be displaced vertically. The climbing lift can assume various operating states.For example, in a first operating state, the protective platform and the machine platform can be fixedly arranged in their vertical positions in the elevator shaft, so that they cannot be vertically displaced in the first operating state. In the first operating state, the elevator car can be vertically displaced below the machine platform, for example, to transport people and / or loads. Furthermore, in the first operating state, the installation arrangement can be vertically displaced. The first operating state represents the "normal" operation of the climbing lift, which can also be referred to as the transport operation of the climbing lift. In a second operating state, the protective platform can be fixedly arranged in its vertical position in the elevator shaft, and the machine platform can be vertically displaced, for example, by means of the first support means and the first displacement device.In a third operating mode, the safety platform can be moved vertically. To do this, the safety platform can be mechanically coupled to a crane external to the climbing lift through the elevator shaft, which is still open at the top, and then moved vertically within the elevator shaft using the crane. The third operating mode represents the climbing lift's climbing operation.

[0020] According to one embodiment, the platform comprising the sensor is displaced during the climbing operation of the climbing lift, for example, in response to receiving the displacement signal. The detection signal is sent to the sensor during the climbing operation, and the sensor is configured to record the measured value during the climbing operation. This enables the elevator shaft to be measured even before the climbing lift begins transporting operations, since the climbing operation is first necessary to position the climbing lift and, in particular, the platform in the area where the transport operation is to take place. Optionally, the elevator shaft can already be measured, and, in particular, the measured value can be recorded, when the climbing lift and, in particular, the platform, are first lowered into the elevator shaft from above by means of the external crane. This enables the elevator shaft to be measured before the climbing and, in particular, the transport operations.For example, the crane can be a construction site crane used in the construction of the building. According to one embodiment, the climbing lift comprises: a protective platform forming the first platform; and a machine platform forming the second platform and mechanically coupled to the first support means such that the machine platform can be vertically displaced in the elevator shaft by means of the first support means. The sensor can be arranged, for example, on one of the platforms, for example on the protective platform or on the machine platform. Arranging the sensor on the protective platform or the machine platform makes it possible to detect the property and, in particular, the measured value during the climbing operation of the climbing lift, since the protective platform and / or the machine platform are displaced vertically during the climbing operation.The machine platform can be moved, for example, using the climbing lift's first displacement device, which is mechanically coupled to the first support means. The first displacement device can be arranged on the machine platform, for example. However, it can also be arranged on the safety platform.

[0021] According to one embodiment, the sensor is arranged on the safety platform. This can contribute to detecting the property and, in particular, the measured value as early as possible, since the safety platform is the first platform of the climbing lift to be moved, particularly during climbing operation of the climbing lift and / or when the climbing lift is first installed in the elevator shaft.

[0022] According to one embodiment, the sensor is mounted on the machine platform. This can contribute to early detection of the property, and in particular the measured value, since the machine platform is moved during the climbing operation of the climbing lift and / or when the climbing lift is first installed in the elevator shaft.

[0023] According to one embodiment, the climbing lift comprises: the protective platform forming the first platform; the machine platform arranged in the elevator shaft below the protective platform and mechanically coupled to the first support means such that the machine platform is vertically displaceable in the elevator shaft by means of the first support means; and the installation platform forming the second platform and suspended vertically displaceably on the protective platform between the protective platform and the machine platform in the elevator shaft, wherein the sensor is arranged on the installation platform.

[0024] Placing the sensor on the installation platform allows the property, and in particular the measured value, to be recorded during transport operation of the climbing lift. The installation platform can be used, for example, to perform installation work vertically between the safety platform and the machine platform. This installation work can be performed, for example, using a mechatronic installation device, such as an industrial robot, or by an installer. The installation work can be performed during transport operation of the climbing lift. During transport operation, the safety platform and the machine platform are fixed vertically and are not moved vertically.

[0025] According to one embodiment, the sensor has a detection range within which the measured value can be recorded, and the sensor is arranged on the corresponding platform such that the detection range is directed outwards relative to the corresponding platform. The fact that the detection range is directed outwards relative to the corresponding platform can mean that the detection range is directed towards a shaft wall of the elevator shaft. This allows the sensor to detect the property of the shaft wall or one of the elevator components arranged on the shaft wall. Thus, the property of the elevator shaft to be determined by the sensor can be a property of the shaft wall or of the elevator component attached to the shaft wall. The detection range can also be referred to as the operating detection range.If the sensor is an optical sensor, for example a camera, the detection range can be, for example, the field of view or the angle of view of the camera.

[0026] According to one embodiment, the sensor is arranged such that it is movable and the detection range can be changed accordingly. For example, a scanning movement can be performed by the sensor, allowing an area of ​​the elevator shaft to be scanned by the sensor that is larger than the detection range of the sensor. A scanning direction in which the sensor can be moved can be at least partially horizontally oriented, so that the elevator shaft can be scanned in the horizontal direction by means of the scanning movement and in the vertical direction by moving the corresponding platform. When determining the property and / or during the corresponding detection of the measured value, the sensor can be rotated, for example, by 360°, for example, around a vertical axis of rotation, so that a horizontal area around the sensor can be scanned with the sensor.In other words, the scanning movement can be a rotational movement. Alternatively, the scanning movement can have a vertical component in addition to the horizontal component. For example, the scanning movement can be meandering.

[0027] According to one embodiment, the climbing lift has at least one additional sensor arranged on the same platform as the sensor and oriented such that a further detection range of the additional sensor is a different range than the detection range of the sensor. For example, the further detection range of the additional sensor can be directed in a different direction than the detection range of the sensor. Optionally, three or more additional sensors, for example four, can be arranged on the corresponding platform, whose further detection ranges differ at least partially from one another. For example, the additional sensors can be arranged such that their detection ranges overlap one another in the horizontal direction, so that the elevator shaft can be scanned all around by the sensors.In the case of four sensors, their additional detection areas can each be directed toward one of the shaft walls of the elevator shaft, so that all four shaft walls can be scanned simultaneously by the sensors. Alternatively to these multiple additional sensors, a single sensor can be mounted rotatably on the corresponding platform, so that the elevator shaft can be scanned all around using the single rotatable sensor, as already explained above.

[0028] According to one embodiment, the sensor comprises a camera. For example, the sensor may comprise a TOF (time-of-flight) camera or be designed as a TOF camera. Alternatively, the sensor may comprise a laser rangefinder or be designed as a laser rangefinder. Alternatively, the sensor may comprise an optical scanner or be designed as an optical scanner. Such an optical scanner comprises at least one light-sensitive sensor that is movably arranged so that the elevator shaft can be scanned by the light-sensitive sensor. The optical scanner may optionally comprise two or more light-sensitive sensors, in particular a camera. Alternatively, the sensor may be, for example, an ultrasonic sensor.Furthermore, the climbing lift can have multiple sensors that enable different measurement principles, for example, one or more cameras and / or one or more ultrasonic sensors. In the case of multiple sensors, these can be arranged on the same platform or on different platforms of the climbing lift.

[0029] It should be understood that in this description some features, advantages and / or embodiments are described only with reference to one of the aforementioned aspects, but that these features, advantages and / or embodiments can be readily transferred to one of the other aspects, whereby a repeated description of these features, advantages and / or embodiments has been omitted in order to provide a concise description and in order not to obscure the inventive idea on which the invention is based.

[0030] Embodiments of the invention are described below with reference to the accompanying drawings, wherein neither the drawings nor the description are to be interpreted as limiting the invention.

[0031] Fig. 1 shows a growing climbing lift with an elevator shaft, according to an embodiment of the invention.

[0032] Fig. 2 shows a flowchart of a method for measuring the elevator shaft, according to an embodiment of the invention.

[0033] The figures are merely schematic and not to scale. The same reference numerals designate identical or equivalent features in the various figures.

[0034] Fig. 1 shows a growing climbing lift 1 with an elevator shaft 2, according to an embodiment of the invention. The climbing lift 1 can also be referred to as a growing elevator system. The elevator shaft 2 is located in a building 3. The building 3 is still under construction, whereby the elevator shaft 3 may not yet be completed. For example, the elevator shaft 3 may not yet have a ceiling and is therefore open at the top. The climbing lift 1 can be lifted into the elevator shaft 3 by means of a crane (not shown) through the corresponding opening and, if necessary, relocated vertically within the elevator shaft 3.

[0035] The climbing lift 1 can be used, in particular, to transport people and / or loads in the elevator shaft 2 from one floor of the building 3 to another floor of the building 3. A corresponding shaft opening 5 can be provided on each floor for this purpose, through which the elevator shaft 2 can be entered or exited. Thus, each shaft opening 5 of the elevator shaft is assigned to a floor of the building 3. Furthermore, the climbing lift 1 can be used to carry out assembly work in the elevator shaft 2, for example, in an automated manner, which is explained in more detail below. As the height of the building 3 increases, the climbing lift 1 can then be gradually positioned higher and higher within the elevator shaft 2 until the building 3 and, in particular, the elevator shaft 2 are completed. The climbing lift can then be replaced by a "normal" elevator.For example, the elevator shaft 2 extends vertically through the building 3. The elevator shaft 2 is bounded laterally by several shaft walls 4.

[0036] The climbing lift 1 comprises a protective platform 12, a machine platform 10, at least one first support means 14, and optionally an installation platform 16. These platforms are removed from the elevator shaft 2 when the climbing lift is replaced by a "normal" elevator, so that they are only temporarily arranged in the elevator shaft 2. The protective platform 12 is arranged in the elevator shaft 2. The first support means 14 is mechanically coupled to the protective platform 12. The machine platform 10 is arranged in the elevator shaft 2 below the protective platform 12 and is mechanically coupled to the first support means 14 such that the machine platform 10 can be vertically displaced in the elevator shaft 2 by means of the first support means 14.

[0037] The installation platform 16 is suspended in the elevator shaft 2 so as to be vertically displaceable in the vertical direction between the protective platform 12 and the machine platform 10. The installation platform 16 can, for example, have a frame 25, to the top of which a suspension, for example a hook 29, can be attached. The installation platform 16 can, for example, be suspended from the protective platform 12 by means of the first support means 14, for example on the hook 29. For example, the first support means 14 can be coupled to the installation platform 16 on the one hand and to the machine platform 10 on the other. Alternatively, the installation platform 16 can be suspended from the protective platform 12 by means of a second support means 15.The second support means 15 can be a portion of the first support means 14, with the first support means 14 being arranged on one side of a deflection pulley 18 and the second support means 15 being arranged on another side of the deflection pulley 18. Alternatively, the second support means 15 can be a support means independent of the first support means 14 (not shown). The latter allows the mechatronic installation platform 16 to be suspended from the protective platform 12 (not shown) independently of the machine platform 10.

[0038] The installation platform 16 can be used by a fitter or construction worker to attach the elevator components to the shaft walls 4. Alternatively or additionally, the installation platform 16 can have a mechatronic installation device (not shown) designed to automatically mount at least one of the elevator components in the elevator shaft 2. The mechatronic installation device can be designed as an industrial robot and have an adjustable robot arm. The industrial robot can be designed such that elevator components can be mounted within the elevator shaft 2, in particular on the shaft walls 4 of the elevator shaft 2, by means of the industrial robot. For this purpose, in particular in order to be able to find its way around and orient itself in the elevator shaft 2 and to find the correct positions of or for the components, the industrial robot can use a digital model of the elevator shaft 2.The elevator components can, for example, have or be fastening means, clamps, brackets 6 and / or one or more guide rails 7.

[0039] The climbing lift 1 can additionally have, for example, an elevator car 28, a counterweight 22, a first displacement device 34, for example in the form of a winch, optionally a second displacement device, and a drive motor 36. During normal operation of the climbing lift 1, the elevator car 28 can serve to accommodate one or more persons and / or vehicles. The elevator car 28 can, for example, be suspended below the machine platform 10 on the machine platform 10 in a vertically displaceable manner, for example by means of a third support means 30 that is mechanically coupled to the machine platform 10. The elevator car 28 can be mechanically coupled to the guide rail 7 such that the guide rail guides the elevator car 28 during its vertical movement. The guide rail 7 can be attached to one of the shaft walls 4 by means of the brackets 6.The counterweight 22 can be arranged in the elevator shaft 2 and serve to vertically displace and / or hold the elevator car 28. The counterweight 22 can be mechanically coupled to the elevator car 28, for example, via the third support means 30. For example, the third support means 30 can extend from the counterweight 22 to the elevator car 28 via one or more additional deflection pulleys 18 arranged on the machine platform 10.

[0040] The first displacement device 34 can, for example, be mechanically coupled to the first support means 14 and serve to move the first support means 14, whereby the machine platform 10 and / or the installation platform 16 can be displaced vertically. If the installation platform 16 can be displaced vertically by means of the second support means 15 independently of the machine platform 10, the second support means 15 can optionally be moved by means of the second displacement device (not shown) in order to displace the installation platform 16 vertically. The drive machine 36 can, for example, be mechanically coupled to the third support means 30 and serve to move the third support means 30, whereby the elevator car 28 can be displaced vertically. For example, the drive machine 36 can be mechanically coupled to the third support means 30 via a traction sheave 38.In contrast, the first support means 14 can be wound more or less tightly onto an extension of a motor shaft of the first displacement device 34, depending on the vertical position of the installation platform 16. The aforementioned displacement devices and the drive motor are arranged, in particular, on the machine platform 10. However, it is also possible for at least one of the aforementioned components, for example, the first displacement device, to be arranged on the protective platform.

[0041] The climbing lift 1 can assume various operating states. For example, in a first operating state, the protective platform 12 and the machine platform 10 can be fixedly arranged—in other words, secured, fixed, or attached—at their vertical positions in the elevator shaft 2, so that they cannot be vertically displaced in the first operating state. For example, the protective platform 12 and / or the machine platform 10 can each have two or more support elements 42, by means of which the protective platform 12 and / or the machine platform 10 can be firmly coupled to the elevator shaft 2. For example, the support elements 42 can protrude laterally from the protective platform 12 and the machine platform 10 and be placed on supports 40 formed in the shaft walls 4.In the first operating state, the elevator car 28 can be moved vertically below the machine platform 10, for example, to transport people and / or loads. Furthermore, in the first operating state, the installation platform 16 can be moved vertically, so that assembly work in the elevator shaft 2 can be carried out from the installation platform 16 at different height levels vertically between the machine platform 10 and the safety platform 12, automatically in the case of the industrial robot. The first operating state represents the "normal" operation of the climbing lift 1.

[0042] In a second operating state of the climbing lift 1, the protective platform 12 can be fixedly arranged at its vertical position in the elevator shaft 2 and the machine platform 10 can be displaced vertically, for example by means of the first support means 14 and the first displacement device 34. This makes it possible to vary a vertical area to which the persons and / or loads can be transported by means of the elevator car 28, depending on the construction progress of the building 3.

[0043] In a third operating state, the protective platform 12 can be displaced vertically. For this purpose, the protective platform 12 can be mechanically coupled to the crane (not shown), which is arranged externally with respect to the climbing lift 1, and displaced vertically within the elevator shaft 2 by means of the crane. This makes it possible, depending on the construction progress of the building 3 in the elevator shaft 2, to vary, on the one hand, the vertical area to which the people and / or loads can be transported by the elevator car 28 and, on the other hand, the vertical area in which the assembly work is carried out. The third operating state represents climbing operation of the climbing lift 1.

[0044] The climbing lift 1 has a first platform, which is arranged so as to be displaceable in the elevator shaft 2, for example the protective platform 12. The climbing lift 1 has at least one second platform, which is mechanically coupled to the first platform by means of the first support means 14 and which is arranged so as to be displaceable in the elevator shaft 2 below the first platform 14, for example the machine platform 10 or the installation platform 16. At least one sensor 44 is arranged on at least one of the platforms, for example on the protective platform 12, the machine platform 10 or on the installation platform 16. The sensor 44 can be arranged on, below, or to the side of the corresponding platform. Optionally, two or more of the sensors 44 can be arranged on the corresponding platform. Furthermore, one, two or more of the sensors 44 can be arranged on two or all three platforms.

[0045] Each of the sensors 44 is designed such that a measured value can be recorded by means of the sensor 44 while the corresponding platform is being moved. The measured value is representative of a property of the elevator shaft 2. This can mean, for example, that conclusions can be drawn about the property based on the measured value. In addition to the one measured value, a series of further measured values ​​can be recorded, in particular while the corresponding platform is being moved. The further measured values ​​can relate to the same property of the elevator shaft 2. Alternatively or additionally, two or more first measured values ​​can relate to a first property of the elevator shaft 2 and one, two or more second measured values ​​can relate to a second property of the elevator shaft 2.Thus, during the displacement of the corresponding platform, two or more properties of the elevator shaft 2 can be determined by recording corresponding first and second or corresponding further measured values.

[0046] The property of the elevator shaft 2 to be recorded can, for example, be a height, width, depth, or length of the elevator shaft 2. The measured value that is representative of the property can thus, for example, be a height, width, depth, or length of the elevator shaft 2. The property of the elevator shaft 2 to be recorded can also be a position of a single point or the positions of multiple points on a shaft wall of the elevator shaft 2. The property to be recorded can also relate to the positions and / or sizes of one or more of the elevator components that are permanently arranged in the elevator shaft 2. Thus, for the purposes of this description, not only the shaft walls 4 of the elevator shaft 2 are assigned to it, but also the elevator components that are permanently installed in the elevator shaft 2. These elevator components can, for example, have or be clamps, the holders 6, supports, angles, and / or the guide rail 7.

[0047] Each of the sensors 44 can have a detection range 46 within which the measured value can be detected. The corresponding sensor 44 can, in particular, be arranged on the corresponding platform such that its detection range 46 is directed outwards relative to the corresponding platform. The fact that the detection range 46 is directed outwards relative to the corresponding platform can mean that the detection range 46 is directed towards one of the shaft walls 44 of the elevator shaft 2. The detection range 46 can also be referred to as the operational detection range. If the sensor 44 is an optical sensor, for example a camera, the detection range 46 can be, for example, the field of view or the angle of view of the camera.

[0048] The sensor 44 can be arranged such that it is movable and the detection range 46 can be changed accordingly. For example, a scanning movement can be performed by the sensor 44, allowing an area of ​​the elevator shaft 2 to be scanned by the sensor 44 that is larger than the detection range 46. A scanning direction in which the sensor 44 can be moved can be oriented at least partially horizontally, so that the elevator shaft 2 can be scanned in the horizontal direction by means of the scanning movement and in the vertical direction by displacing the corresponding platform. For example, when determining the property and / or during the corresponding detection of the measured value, the sensor 44 can be rotated, for example by 360°, for example about a vertical rotation axis 48, so that a horizontal area around the sensor 44 can be scanned by the sensor 44.In other words, the scanning movement can be a rotational movement. Alternatively, the scanning movement can also have a vertical component in addition to the horizontal component. For example, the scanning movement can be meandering. The climbing lift 44 can have two or more sensors 44. These additional sensors 44 can be arranged on the same platform as the one sensor 44. The additional sensors 44 can be aligned such that an additional detection range 46 of the additional sensors 44 is a different range than the detection range 46 of the one sensor 44. For example, an additional detection range 46 of one of the additional sensors 44 can be directed in a different direction than the detection range 46 of the one sensor 44. Optionally, three or more additional sensors 44, for example four, can be arranged on the corresponding platform, whose additional detection ranges 46 differ at least partially from one another.For example, the additional sensors 44 can be arranged such that their detection areas 46 overlap one another horizontally, so that the elevator shaft 2 can be scanned all around by the sensors 44. In the case of four sensors 44, their additional detection areas 46 can each be directed at one of the shaft walls 4 of the elevator shaft 2, so that all four shaft walls 4 can be scanned simultaneously by the sensors 44. As an alternative to these multiple additional sensors 44, a single one of the sensors 44 can be rotatably mounted on the corresponding platform, so that the elevator shaft 2 can be scanned all around by the one rotatable sensor 44, as already explained above.

[0049] The sensor 44 can have or be a camera. For example, the sensor 44 can have a TOF camera or be designed as a TOF camera. Alternatively, the sensor can have a laser rangefinder or be designed as a laser rangefinder. Alternatively, the sensor 44 can have an optical scanner or be designed as an optical scanner. Such an optical scanner has at least one light-sensitive sensor that is movably arranged so that the elevator shaft 2 can be scanned by means of the light-sensitive sensor. The optical scanner can optionally have two or more light-sensitive sensors, in particular a camera. Alternatively, the sensor 44 can be an ultrasonic sensor, for example. Furthermore, the climbing lift 1 can have several of these sensors 44, which enable different measuring principles, for example one or more cameras and / or one or more ultrasonic sensors.In the case of multiple sensors 44, these can be arranged on the same platform or on different platforms of the climbing lift 1. The climbing lift 1 can have a control unit 20. The control unit 20 is communicatively coupled to the sensor 44. The control unit 20 has a memory unit 22 and a processor 24. The memory unit 20 serves to store the at least one measured value representative of the property of the elevator shaft 2. The processor 24 is designed to execute the method described above and below.

[0050] Fig. 2 shows a flowchart of a method for surveying the elevator shaft 2 according to an exemplary embodiment of the invention. The method serves to survey the elevator shaft 2 during its construction. The method can be executed entirely or partially by the control unit 20 of the climbing lift 1.

[0051] In an optional step S2, the control unit 20 can send a displacement signal to the unit responsible for displacing the platform having the sensor 44. For example, if the platform having the sensor 44 is the protection platform 12, it can be displaced by means of the crane external to the climbing lift 1, and the displacement signal can be sent to a crane control unit of the crane. For example, if the platform having the sensor 44 is the machine platform 10 or the installation platform 16, the control unit 20 can send the displacement signal to the first displacement device 34 of the climbing lift 1, which is responsible for displacing the machine platform 10 or the installation platform 16.

[0052] In a step S4, a detection signal can be sent to the sensor 44, which is attached to the corresponding platform to be relocated, wherein the sensor 44 is designed to detect at least one of the measured values ​​representative of the property of the elevator shaft 2 in response to receiving the detection signal while the corresponding platform is being relocated. The sensor 44 is further designed to generate a measurement signal as a result of detecting the measured value, which is representative of the measured value and thus of the property of the elevator shaft 2. If the sensor 44 detects multiple measured values ​​and / or a curve of the measured values, the measured values ​​or the curve of the measured values ​​can be encoded in the measurement signal. In this case, the measurement signal is representative of the measured values ​​or the curve of the measured values.

[0053] The measured value can be recorded using one of the sensors 44 attached to the corresponding platform. In particular, the platform having the sensor can be displaced during the climbing operation of the climbing lift 1, and the measured value can be recorded during the climbing operation. Optionally, the elevator shaft 2 can already be measured, and in particular the measured value can be recorded when the climbing lift 1, and in particular the platform having the sensor 44, are lowered from above into the elevator shaft 2 for the first time by means of the external crane. Preferably, the measured value is recorded several times, for example continuously, during the displacement of the platform, wherein a measurement signal recorded by the sensor can then be representative of a course of the measured value.

[0054] In a step S6, the measurement signal representative of the property of the elevator shaft 2 can be received. The measurement signal and / or in particular the measured values ​​can be stored on the storage unit 22 for further processing.

[0055] In a step S8, a digital model of the elevator shaft 2 can be created depending on the recorded measured value, for example, by means of the control unit 20. The recorded measured values ​​can together form the digital model of the elevator shaft 2. The digital model can thus comprise a digital data set in which, in addition to the one measured value, several of the additional measured values ​​are encoded. The digital model of the elevator shaft 2 can be representative of the completely measured elevator shaft 2. The digital model of the elevator shaft 2 can also be stored on the storage unit 22. It is also possible for the digital model to be created from the measured signals in a subsequent step, independent of the control unit 20.

[0056] Finally, it should be noted that terms such as "having," "comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments can also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limitations.

Claims

Patent claims 1. A method for measuring an elevator shaft (2) by means of an expandable climbing lift (1) for transporting a load from one floor to another within a building (3) under construction, wherein the climbing lift (1) has a platform temporarily arranged in the elevator shaft (2), characterized in that the method comprises the following method steps: Sending a detection signal to a sensor (44) attached to the platform, the sensor (44) being configured to detect at least one measured value representative of a property of the elevator shaft (2) in response to receiving the detection signal while the platform is being displaced; Receiving a measurement signal from the sensor (44) that is representative of the measured value; and Creating a digital model of the elevator shaft (2) depending on the measured value.

2. The method according to claim 1, wherein the platform is displaced during a climbing operation of the climbing lift (1), the detection signal is sent to the sensor (44) during the climbing operation, and the sensor (44) is designed to detect the measured value during the climbing operation.

3. Control unit (20) for a climbing lift (1) that can be extended with the user, for erecting the climbing lift (1) having a lift shaft (2) for transporting a load from one floor to another floor within a building (3) under construction, wherein the climbing lift (1) comprises: a first platform that is arranged to be displaceable in the lift shaft (2); a second platform that is mechanically coupled to the first platform by means of a first support means (14) and that is arranged to be displaceable in the lift shaft (2) below the first platform; at least one sensor (44) that is arranged on one of the platforms and that is arranged and designed such that a measured value which is representative of a property of the elevator shaft (2) while the corresponding platform is being displaced; the control unit (20) comprising: a storage unit (22) for storing at least one measured value which is representative of a property of the elevator shaft (2); and a processor (24) which is designed to process the method according to one of claims 1 or 2.

4. A climbing lift (1) in the form of a climbing lift (1) that grows with the building and has an elevator shaft (2) for transporting a load from one floor to another within a building (3) under construction. The climbing lift (1) comprises: a first platform that is displaceably arranged in the elevator shaft (2); a second platform that is mechanically coupled to the first platform by means of a first support means (14) and that is displaceably arranged in the elevator shaft (2) below the first platform; at least one sensor (44) that is arranged on one of the platforms and that is arranged and designed such that a measured value representative of a property of the elevator shaft (2) can be detected by means of the sensor (44) while the corresponding platform is displaced; and a control unit (20) according to claim 3, which is communicatively coupled to the sensor (44).

5. Climbing lift (1) according to claim 4, comprising: a protective platform (12) forming the first platform; and a machine platform (10) forming the second platform and mechanically coupled to the first support means (14) such that the machine platform (10) is vertically displaceable in the elevator shaft (2) by means of the first support means (14).

6. Climbing lift (1) according to claim 5, wherein the sensor (44) is arranged on the protective platform (12).

7. Climbing lift (1) according to claim 5, wherein the sensor (44) is arranged on the machine platform (10).

8. Climbing lift (1) according to claim 4, comprising: a protective platform (12) forming the first platform; a machine platform (10) arranged in the elevator shaft (2) below the protective platform (12) and mechanically coupled to the first support means (14) such that the machine platform (10) is vertically displaceable in the elevator shaft (2) by means of the first support means (14); and an installation platform (16) forming the second platform and suspended between the protective platform (12) and the machine platform (10) in the elevator shaft (2) so as to be vertically displaceable on the protective platform (12), wherein the sensor (44) is arranged on the installation platform (16).

9. Climbing lift (1) according to one of claims 4 to 8, wherein the sensor (44) has a detection range (46) within which the measured value can be detected, and the sensor (44) is arranged on the corresponding platform such that the detection range (46) is directed outwards with respect to the corresponding platform.

10. Climbing lift (1) according to claim 9, wherein the sensor (44) is arranged so that it is movable and that the detection range (46) is accordingly changeable.

11. Climbing lift (1) according to one of claims 9 or 10, comprising at least one further sensor (44) which is arranged on the same platform as the sensor (44) and which is aligned such that a further detection area (46) of the further sensor (44) is a different area than the detection area (46) of the sensor (44).

12. Climbing lift (1) according to one of claims 4 to 11, wherein the sensor (44) comprises a camera.

Images