Elevator shaft with code bands for detecting the position of an elevator car

Abstract

The following embodiments relate to an elevator shaft (2) for an elevator system (1) having at least one track (2.1, 2.2, 2.3, 2.4) for an elevator car (4.1, 4.2), comprising at least one first position code (7), which extends along the at least one track (2.1, 2.2, 2.3, 2.4) and has position marks (14, 14.1,14.2,14.3,14.4) from a first set of position marks (14, 14.1,14.2,14.3,14.4), and at least one second position code (8), which extends parallel to the first position code (7) and has position marks (14, 14.1,14.2,14.3,14.4) from the first set of position marks (14, 14.1,14.2,14.3,14.4). The first position code (7) and the second position code (8) have, for each position (15.1, 15.2, 15.3, 15.4) of a sequence of positions along the elevator shaft (2), a combination of two position marks (14, 14.1, 14.2, 14.3, 14.4) from the first set, said combination being uniquely associated with the respective position (15.1, 15.2, 15.3, 15.4). The embodiments further relate to an elevator system (1) having such an elevator shaft (2).

Description

[0001] Elevator shaft with code strips for position detection of an elevator car

[0002] Technical field

[0003] The following descriptions relate to an elevator shaft for an elevator system, comprising at least one first position code extending along the elevator shaft with position markers from a first set of position markers.

[0004] Furthermore, the following statements concern an elevator system with such an elevator shaft and at least one car that can move within the elevator shaft.

[0005] Technical background

[0006] Elevator systems for transporting people and / or goods are an integral part of modern residential and commercial buildings. A typical elevator system comprises one or more elevator shafts in which one or more cars are moved between landing positions by means of drives such as suspension drives or linear drives.

[0007] It is known that in such elevator systems, the absolute position of each car is determined by means of a position code arranged in the elevator shaft along the car's travel path and a sensor attached to the car for reading this position code. Determining the absolute position is essential for controlling the elevator system, for example, for precisely approaching landing positions and especially when several cars are traveling in the same elevator shaft and there is a risk of collision. A position code is formed, for example, by a code strip arranged on a support in the elevator shaft.

[0008] Corresponding elevator systems or corresponding position codes are, for example, made of

[0009] Known from EP 3 231 753 Al or EP 1 412 274 Al. However, known position codes only comprise a finite set of representable position markers, meaning that only a limited number of positions can be uniquely identified using a position code, thus limiting the length of the track(s) in the elevator shaft. In elevator systems with multiple tracks, particularly those with a network of vertical and horizontal tracks, this limited length may be insufficient to uniquely assign a position marker to each position along the tracks.

[0010] Description - Technical Solution

[0011] Based on this situation, the task at hand is to enable unambiguous position detection even in elevator systems with multiple or particularly long tracks.

[0012] The present problem is solved by the features of the independent claims. Advantageous embodiments are specified in the dependent claims, the description, and the drawings. Where technically feasible, the teachings of the dependent claims can be combined arbitrarily with those of the main and dependent claims.

[0013] In particular, the problem is solved by an elevator shaft for an elevator system with at least one track for a car, comprising at least one first position code extending along the at least one track with position markers from a first set of position markers and at least one second position code extending parallel to the first position code with position markers from the first set of position markers, wherein the first position code and the second position code each have a unique combination of two position markers from the first set assigned to the position in a sequence of positions along the elevator shaft, and wherein the first position code has at least one position marker from the first set multiple times and / or wherein the second position code has at least one position marker from the first set multiple times.

[0014] The following sections explain advantageous aspects and subsequently describe preferred modified embodiments. Explanations, particularly regarding advantages and definitions of features, are essentially descriptive and preferred, but not limiting, examples. If an explanation is limiting, this will be explicitly stated.

[0015] Where ordinal numbers, such as "first," "second," etc., are used, for example to designate a component, an element, a process step, or a process action, these ordinal numbers are solely for differentiation in the designation and do not indicate any dependencies or sequences. This means, in particular, that a device does not need to have a "first component" to have a "second component." A device can also have a "first component" and a "third component" without necessarily having a "second component." Multiple units with the same ordinal number are also possible, for example, multiple "first components."

[0016] According to the present understanding, an elevator system is designed, for example, with at least one vertical and / or horizontal elevator shaft and at least one elevator car, but can also have several elevator shafts and / or several elevator cars, in particular several elevator cars in one elevator shaft.

[0017] A car is, for example, held and driven by a load-bearing element, with a drive device transmitting a drive torque to the load-bearing element via the drive shaft. The load-bearing element is preferably connected to a counterweight associated with the car. A drive device is, in particular, located in a machine room above the elevator shaft(s) or in an upper section of an elevator shaft, the so-called head of the shaft. A load-bearing element is, in particular, designed as a rope, belt, strap, chain, or the like and carries tensile loads in the direction of its longitudinal extension. The travel path of such a car is defined, for example, by the load-bearing element and / or guide rails running through the car.

[0018] An elevator car is alternatively held and driven by a linear actuator. In an elevator system, for example, a linear actuator consists of a primary part extending along the elevator shaft and a secondary part located on the elevator car. The primary part is formed by coils arranged in a line, each with its own converter. An energizer is applied to the coil to generate a magnetic field when the elevator car is within the area of ​​the respective coil. This magnetic field is generated in such a way that the elevator car is attracted or repelled by the magnetic field according to its intended travel path. The secondary part consists of a permanent or electromagnet that interacts with the magnetic fields of the coil. A linear actuator, or rather the primary part of the linear actuator, can extend vertically and / or horizontally, with the secondary part on the car side being aligned accordingly.The travel path of such a car is defined, for example, by the primary part of the linear drive and / or guide elements running parallel to it.

[0019] An elevator shaft is a continuous shaft that extends over several floors and / or along several areas of a building and has a cross-section designed for the passage of the elevator car. An elevator shaft of an elevator system can extend vertically and / or horizontally. In one embodiment, the elevator shaft has at least one vertically extending and at least one horizontally extending section, wherein the elevator car can, in particular, move from the vertically extending section to the horizontally extending section. In particular, a track extends along the length of an elevator shaft, which is formed, in particular, by appropriately arranged guide elements such as guide rails and / or primary components of a linear drive. It is also possible for an elevator shaft to contain other components.In a section of the elevator shaft, several such tracks may be provided in parallel, connected, for example, by a transverse track, thus forming a network of tracks. Such a network can also extend through several sections of the elevator shaft, for example, through several vertical and several horizontal sections.

[0020] A position code is, for example, printed on a component of the elevator shaft, particularly on a guide rail of a track. A position code can also be formed by a code strip comprising a carrier and the position code itself, which is affixed, printed, clipped, or otherwise attached to it. The carrier is then independently held in the elevator shaft, for example, by end clamps and / or multiple attachment points along its length. The position code features a multitude of different position markers along its length, which can be detected by at least one sensor on the elevator car side as the car moves within the shaft. In this way, the sensor can determine the position of the car. The position markers are thus uniquely assigned to a specific position along the elevator shaft.

[0021] Position markers can be optical markers such as barcodes or pixel pattern codes (e.g., QR codes or variations thereof), but they can also be magnetic, acoustic, or otherwise readable markers. Optical markers can be printed on the elevator shaft component or carrier, or formed by perforation. In the case of optical position markers, the position code is made of paper, particularly coated paper, or a thin plastic film and is not inherently rigid. Alternatively, for magnetic position markers, the position code can be made of an elastic plastic, particularly rubber, with sufficient thickness to accommodate magnetic transponders or similar devices as position markers. The magnetic transponders are then embedded, for example, in a coded strip.A sensor for reading the position code is designed, for example, as an optical, magnetic, acoustic or other type of position marker, and is positioned on the elevator car in such a way as to detect the position markers and reliably read them to determine the absolute position in the elevator shaft.

[0022] Insofar as position markers are selected from an initial set of position markers, this initial set corresponds, for example, to the number of different position markers that can be represented with the respective position code. For instance, an optical position code might be limited by the number of possible combinations that can be represented with it, such as the number of pixels in a pixel pattern code or the number of bars and the number of possible bar thicknesses in a barcode. The number of position markers can therefore be limited, for example, by the representable and readable resolution, the dimensions of the barcode, and / or other properties of the respective position code.A position marker can, for example, represent a numerical value or be similarly assignable to a value, whereby the entirety of these values ​​is accessible to mathematical operations and can be arranged in a countable sequence. In this way, the position markers can be related to each other. The position markers can also be related to each other via recognition features without being countable per se.

[0023] The solution to the problem with the aforementioned elevator shaft now comprises the teaching that two position codes of the same type and with the same set of position markers corresponding to the first set are arranged parallel to each other in the elevator shaft, whereby the position markers of the first set are always combined for each position in such a way that they uniquely identify the position. Position markers from the first set can be used multiple times for each position code, insofar as they are combined with a different position marker for the other position code, thus resulting in various combinations that occur only once along the tracks. The number of positions identifiable by both position codes is thus significantly increased beyond the first set, and it is advantageously achieved that a track or track network can be equipped with the same position code, which...which extends over a length that requires more position markers than can be provided by the first Menga alone.

[0024] The multiple occurrences of a position marker within a given position code allow the number of representable combinations to reach up to the square of the size of the first set, enabling the creation of particularly long lanes or lane networks with these position codes. Specifically, the first set can also include a zero value, in which case, for example, a first position code is present in one section, while the second position code is not present there, resulting in a combination of an actual position marker and a zero value. In the simplest such case, one section contains only the first position code and a second section only the second position code, in order to achieve an identifiable length corresponding to twice the size of the first set.

[0025] Alternatively or additionally, the elevator shaft can be provided with at least one horizontal track and at least one vertical track, with the position codes each consisting of a position code segment assigned to the horizontal track and a position code segment assigned to the vertical track. The position codes then extend, for example, to a transfer unit for moving a car between the horizontal and vertical tracks, so that a sensor attached to the car can determine its position using the position codes until it is positioned on the transfer unit for transfer, and then again once the transfer is complete. The position code segments are therefore not directly contiguous. In particular, the orientation of the transfer unit can be determined from the position markers assigned to a position on the transfer unit.the elevator car is located at the transfer unit.

[0026] Alternatively or additionally, the elevator shaft can be provided with several track segments, wherein, within each track segment, all combinations of two position markers from the first set have a consistent relationship to each other, and wherein the relationship is uniquely assigned to a track segment. A track segment can, for example, comprise one or more vertical tracks and / or one or more horizontal tracks and correspond, for example, to a building section or a fire compartment. A relationship can be formed, for example, by a numerical relationship between numerical values ​​represented by the respective position markers or by specific identifying characteristics of the respective position markers. The relationship advantageously ensures that, based on the position codes, a track segment within which the elevator car is located can be easily identified.For example, the number of elevator cars in a track segment can be easily counted, or the entry or exit conditions of individual elevator cars into or from this track segment can be checked, such as whether a specific elevator car is exclusively or not permitted to travel in the track segment. Furthermore, the recognizability of the track segment based on the relation provides a control feature for the position assigned to the combination of two position markers from the first set, allowing the position recognition to be verified through plausibility checks.

[0027] Alternatively or additionally, the relationship can be defined as lying within a rounding range uniquely assigned to a lane segment. For example, a numerical value represented by the first position code lies within a range of 5 to 14 and is rounded to 10, and a numerical value represented by the second position code lies between 15 and 24 and is rounded to 20. This allows for stable and reliable lane segment recognition, providing safeguards against incomplete or asynchronous data retrieval.

[0028] Alternatively or additionally, the position markers of the first set can be optical. Specifically, the position markers are pixel pattern markers in which pixels can be placed or omitted in a certain number of positions. Such a pattern is known, for example, from QR codes and can be formed from discrete position markers or from a direct, continuous sequence of pixel patterns, from which a sensor always detects only a sub-area as the respective position marker. In particular, two sensors can also be arranged one behind the other in the direction of extension of a respective position code, so that position code recognition is redundant for each position code.

[0029] Alternatively or additionally, the first position code and the second position code, or respective position code sections of the first and second position codes, can be arranged offset from each other in the direction of extension of the at least one lane or lane segment. The position codes or position code sections thus do not end at the same point in their direction of extension on at least one side. In this way, they are arranged to correspond to an offset of sensors on the at least one elevator car, which makes it possible to align the sensors equally with both vertically and horizontally oriented position codes. Furthermore, by offsetting the position codes at transitions between position code sections or other interruptions in the position code, it can be achieved that the time of the sensor transition between the position code sections or...The interruption varies for each sensor. The first sensor passes through the transition or interruption first, and the second sensor only passes through once the first sensor has reliably detected a position marker again. This prevents a situation where both sensors are without a position marker and thus lose their position. The problem is further solved with an elevator system featuring a previously described elevator shaft and at least one car that can travel along at least one track. The advantages described above for the elevator shaft can be achieved with this elevator system in a corresponding manner. In particular, such an elevator system can be designed with particularly long tracks or track networks, where unambiguous position detection along the entire track or track network is easily achieved using the first set of position markers.

[0030] Alternatively or additionally, the elevator system may be provided with a linear drive comprising a primary part arranged in the elevator shaft along at least one track and a secondary part arranged on the at least one car. In an elevator system with a linear drive, the present disclosure can, in particular, enable a large track network, whereby the advantage of the car's free movement along vertical and / or horizontal tracks within the track network, achieved by the linear drive, can be particularly utilized. In this way, elevator systems are made possible, in particular, that connect a large number of building areas in a continuous track network in especially large and / or complex buildings.

[0031] Alternatively or additionally, the elevator car may be provided with a cabin and a carriage that is rotatable relative to the cabin, with the secondary part of the linear drive being arranged on the carriage. In this way, the elevator car can be moved along horizontal and vertical tracks or between horizontal and vertical tracks by aligning the carriage with the track, while the cabin always remains in a consistently upright position.

[0032] Alternatively or additionally, it can be provided that a first sensor, assigned to the first position code, and a second sensor, assigned to the second position code, are arranged on at least one car, in particular on the carriage of the at least one car. The car is thus configured so that its position can be detected across the entire track network by means of the sensors. In particular, the sensors on the carriage can be arranged such that they rotate with the carriage when it rotates, so that they are aligned with parallel vertical position codes on a vertical track and with parallel horizontal position codes on a horizontal track. The position codes are then arranged accordingly on the respective tracks.

[0033] Alternatively, the sensors can be fixed in position on a car, for example on the cabin, with the sensors being arranged both horizontally and vertically offset from each other in order to be aligned with position codes running parallel in the horizontal direction as well as with position codes running parallel in the vertical direction.

[0034] Alternatively or additionally, the first and second sensors can be arranged offset from each other in the direction of travel of at least one lane. The sensors, which are also spaced apart from each other transversely to the direction of travel by the parallel alignment of the position codes, are then aligned with both horizontally and vertically parallel position codes. Furthermore, the same applies as with offset position codes.

[0035] Position code sections allow for different transition times between sections, or across interruptions in the position code, for each sensor. This is particularly important at transitions between position code sections or other interruptions in the position code. The first sensor passes through the transition or interruption first, and the second sensor only passes through once the first sensor has reliably detected a position marker again. This prevents a situation where both sensors are without a position marker and thus lose their position. The staggered arrangement of the sensors on the car or carriage can be achieved, in particular, with a staggered arrangement of the position codes.

[0036] Position code sections may be combined.

[0037] Alternatively or additionally, the elevator system can be configured to have multiple cars, with at least one car equipped with a first sensor assigned to the first position code, but without a second sensor assigned to the second position code. The car thus configured is then designed to travel exclusively within a track segment whose length is less than the length covered by the first set of position markers. Within this track segment, the first position code is configured for unique position identification, meaning no position marker is repeated. Advantageously, the car can then be used with only one sensor, thus requiring a simpler design while still ensuring reliable position identification within the track segment.

[0038] Alternatively or additionally, the elevator system may be provided with a control device configured to receive data from the first and second sensors and to determine the position of the elevator car from this data. The control device can then make the position determined from the sensor data available and use it to control the elevator system. In particular, the control device may be a central control device of the elevator system, which itself also controls the elevator cars, drive devices and brakes for moving the cars, the elevator doors, and manages and assigns car calls and / or communicates with the elevator system's operating elements.The position data determined from the sensor data can then be used directly, i.e. without further data transmission, at the control device to control the elevator system.

[0039] Alternatively or additionally, the control device can be provided with non-volatile memory, in which data for assigning a combination of position markers detected by the first and second sensors to a position along the elevator shaft is stored. This makes it particularly easy to determine position data from the sensor data.

[0040] Brief description of the drawings

[0041] A preferred technical solution is explained in more detail below with reference to the accompanying drawings and preferred embodiments. The term "figure" is abbreviated as "Fig." in the drawings.

[0042] The drawings show

[0043] Fig. 1 is a schematic representation of an elevator system according to one embodiment; Fig. 2 is a schematic side view of an elevator system according to one embodiment;

[0044] Fig. 3a shows an exemplary representation of a position marker of a position code;

[0045] Fig. 3b shows an exemplary representation of two position codes with position markers according to Fig. 3a; and

[0046] Fig. 3c shows another exemplary representation of two position codes with position markers according to Fig. 3a.

[0047] Detailed description of the drawings

[0048] The described embodiments are merely examples that can be modified and / or supplemented in various ways within the scope of the claims. Each feature described for a particular embodiment can be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a particular claim category can also be used accordingly in an embodiment of a different claim category.

[0049] Figure 1 shows an elevator system 1 with an elevator shaft 2, which has two vertically extending tracks 2.1, 2.2 and two horizontally extending tracks 2.3, 2.4. Each track 2.1, 2.2, 2.3, 2.4 is defined by a respective section of the elevator shaft 2 and a section running therein.

[0050] Control devices 3.1, 3.2, 3.3, 3.4 are formed, whereby the control devices 3.1, 3.2, 3.3, 3.4 are represented here in a highly schematic manner and each extends along the extent of the

[0051] The tracks extend to 2.1, 2.2, 2.3, and 2.4. Primary components of a linear drive are arranged on or parallel to the guide elements 3.1, 3.2, 3.3, and 3.4, by means of which a respective car 4.1 or 4.2 can be moved along the guide elements 3.1, 3.2, 3.3, and 3.4. Transfer units 6.1, 6.2, 6.3, and 6.4 are arranged between the individual guide elements 3.1, 3.2, 3.3, and 3.4, by means of which a respective car 4.1 or 4.2 can be transferred between the vertical tracks 2.1 and 2.2 and the horizontal tracks 2.3 and 2.4, or between the guide elements 3.1, 3.2, 3.3, and 3.4 located therein. Along lanes 2.1, 2.2, 2.3, and 2.4, a first position code 7 extends, composed of position code sections 7.1, 7.2, 7.3, and 7.4, each assigned to lanes 2.1, 2.2, 2.3, and 2.4, respectively. Furthermore, along lanes 2.1, 2.2, 2.3, and 2.4, a second position code 8 extends, composed of the positions code sections 7.1, 7.2, 7.3, and 7.4, each assigned to lanes 2.1, 2.2, 2.3, and 2.4, respectively.The system is composed of 4 assigned position code sections 8.1, 8.2, 8.3, 8.4. Two highly simplified sensors 9.1, 9.2 are arranged on each of the elevator cars 4.1, 4.2, with the first sensor 9.1 assigned to the first position code 7 and the second sensor 9.2 assigned to the second position code 8. The position code sections 7.1, 7.2, 7.3, 7.4 of the first position code 7 and the position code sections 8.1, 8.2, 8.3, 8.4 of the second position code 8 each run parallel to each other in the direction of extension of a respective lane 2.1, 2.2, 2.3, 2.4, with the sensors 9.1, 9.2 being offset from each other both vertically V and horizontally H, so that they are assigned to the correct position code 7, 8 in each lane 2.1, 2.2, 2.3, 2.4. The position codes 7, 8 extend along the respective lanes 2.1, 2.2, 2.3, 2.4 according to the offset of the sensors 9.1, 9.2.The sensors 9.1 and 9.2 are offset from each other so that each sensor is positioned above both position codes 7 and 8 at every position reachable by the elevator cars 4.1 and 4.2. Furthermore, gaps 12.1 and 12.2 are shown in the position code sections 7.1, 7.2, 8.1, and 8.2, whereby sensors 9.1 and 9.2 do not pass through the gaps 12.1 and 12.2 simultaneously due to their offset from each other.

[0052] Figure 1 further shows a control device 13, which is configured to control the elevator system 1, in particular to control the linear drive and to assign calls to the elevator cars 4.1, 4.2. The control device 13 can also receive sensor data from the sensors 9.1, 9.2 and calculate position data for the elevator cars 4.1, 4.2 from this data. For this purpose, the control device 13 has a non-volatile memory 13.1 in which data for assigning a combination of position markers detected by the first sensor 9.1 and the second sensor 9.2 to a position is stored.

[0053] Figure 2 shows a side view of an elevator system 1, such as that depicted in Figure 1. The car 4.1 comprises a cabin 10, including a passenger compartment 10.1 and a cabin support 10.2, and a carriage 11 that can rotate relative to the cabin 10. When the car 4.1 travels onto a transfer unit 6.1, 6.2, 6.3, 6.4, the carriage 11 rotates with the transfer unit 6.1, 6.2, 6.3, 6.4, while the cabin 10 rotates relative to the carriage 11 and thus remains in its upright position. The sensors 9.1, 9.2 can now be arranged on the cabin 10, as indicated in Figure 1, so that it does not rotate with the carriage 11, with the alignment to the vertical tracks 2.1, 2.2 and the horizontal tracks 2.3, 2.4 being as described in Figure 1. Alternatively, the sensors 9.1, 9.2 can also be arranged offset from each other in only one direction V, H on the carriage 11 and rotate with the carriage 11 to align with the respective tracks 2.to be aligned with 1, 2.2, 2.3, 2.4.

[0054] In Figure 1, position codes 7 and 8 are shown schematically as barcodes. Position markers are formed from such a barcode, each uniquely assigned to a position along lanes 2.1, 2.2, 2.3, and 2.4, and read by sensors 9.1 and 9.2. The first position code 7 and the second position code 8 together form a combination of position markers at each position, identifying that position.

[0055] Figures 3a to 3c show another alternative for position markers 14 as pixel patterns. Figure 3a shows such a position marker 14 as an example arrangement of four pixels, where each pixel can optionally be filled, as shown for the two leftmost pixels in Figure 3a, or left unfilled, as shown for the two rightmost pixels in Figure 3a. With these four pixels, a first set of sixteen different position markers 14 can be represented.

[0056] Figures 3b and 3c show exemplary sections of position codes 7 and 8, each with four positions 15.1, 15.2, 15.3, and 15.4, identified by position markers 14. Thus, for each position code 7 and 8, a first position marker 14.1, a second position marker 14.2, a third position marker 14.3, and a fourth position marker 14.4 are shown. It is readily apparent to those skilled in the art that the representation in Figures 3b and 3c comprises only a small section of position codes 7 and 8 to illustrate the present disclosure, whereas position codes 7 and 8, using the principle shown here, can extend over hundreds or thousands of meters and thus over a correspondingly large number of positions.

[0057] Figure 3b shows, on the one hand, that the second position code 8 is the same

[0058] Position marker 14 occurs multiple times. All four position markers 14.1, 14.2, 14.3, and 14.4 are identical, while the position markers 14.1, 14.2, 14.3, and 14.4 of the first position code 7 vary, so that each position 15.1, 15.2, 15.3, and 15.4 is uniquely determined by the combination of the respective position markers 14.1, 14.2, 14.3, and 14.4 of position codes 7 and 8. Furthermore, the position markers 14.1, 14.2, 14.3, and 14.4 of position codes 7 and 8 have a consistent relationship to each other, insofar as each position marker 14.1, 14.2, 14.3, and 14.4 has a consistent identifying feature. Thus, in the first position code 7, the leftmost pixel is always filled, while in the second position code 8, the rightmost pixel is always filled. Such a consistent relationship in the form of consistent recognition features could, for example, be a unique marking of a lane segment.Such a lane segment is formed, for example, by lanes 2.1 and 2.3 or by only one of lanes 2.1, 2.2, 2.3, 2.4 and is not shown in more detail here.

[0059] Figure 3c shows an alternative relationship between the respective pairs of position markers 14.1, 14.2, 14.3, 14.4 of the respective position codes 7, 8, where the position markers 14.1, 14.2, 14.3, 14.4 each represent a numerical value in the form of a binary code. The position markers 14.1, 14.2, 14.3, 14.4 shown correspond to the numerical values ​​in the table shown below.

[0060] It is evident that every combination of position markers 14.1, 14.2, 14.3, 14.4 exhibits a consistent numerical value relationship. Thus, the value of the second position code, 8, always corresponds to the value of the first position code, 7, plus one. Such a consistent relationship can also serve as a unique marker for a lane segment. Reference symbol list

[0061] 1 elevator system

[0062] 2 elevator shafts

[0063] 2.1 first lane

[0064] 2.2 second lane

[0065] 2.3 third lane

[0066] 2.4 fourth lane

[0067] 3.1 First management tool

[0068] 3.2 second management tool

[0069] 3.3 Third management tool

[0070] 3.4 fourth management tool

[0071] 4.1 First carriage

[0072] 4.2 second passenger basket

[0073] 6.1 First converter

[0074] 6.2 second converter

[0075] 6.3 Third converter

[0076] 6.4 fourth converter

[0077] 7 first position code

[0078] 7.1 First position code section of the first position code

[0079] 7.2 second position code section of the first position code

[0080] 7.3 third position code section of the first position code

[0081] 7.4 fourth position code section of the first position code

[0082] 8 second position code

[0083] 8.1 first position code section of the second position code

[0084] 8.2 second position code section of the second position code

[0085] 8.3 third position code section of the second position code

[0086] 8.4 fourth position code section of the second position code

[0087] 9.1 first sensor

[0088] 9.2 second sensor

[0089] 10 Cabin of an elevator car

[0090] 10.1 Passenger compartment of the cabin

[0091] 10.2 Cabin mounting of cabin 11 Car carriage

[0092] 12.1 Interruption of a position code

[0093] 12.2 Interruption of a position code

[0094] 13 Control device 13.1 Non-volatile memory of the control device

[0095] 14 Position marker

[0096] 14.1 first position mark

[0097] 14.2 second position mark

[0098] 14.3 third position mark 14.4 fourth position mark

[0099] 15.1 first position

[0100] 15.2 second position

[0101] 15.3 third position

[0102] 15.4 fourth position H horizontal direction

[0103] V vertical direction

Claims

Claims 1. Elevator shaft (2) for an elevator installation (1) with at least one track (2.1, 2.2, 2.3, 2.4) for a car (4.1, 4.2), having at least one first position code (7) extending along the at least one track (2.1, 2.2, 2.3, 2.4) with position markers (14, 14.1, 14.2, 14.3, 14.4) from a first set of position markers (14, 14.1, 14.2, 14.3, 14.4); and at least one second position code (8) extending parallel to the first position code (7) with position markers (14, 14.1, 14.2, 14.3, 14.4) from the first set of position markers (14, 14.1, 14.2, 14.3, 14.4); wherein the first position code (7) and the second position code (8) each have a unique combination of two position markers (14, 14.1, 14.2, 14.3, 14.4) assigned to position (15.1, 15.2, 15.3, 15.4) of a sequence of positions along the elevator shaft (2).4) from the first set; and wherein the first position code (7) has at least one position marker (14, 14.1, 14.2, 14.3, 14.4) from the first set multiple times and / or wherein the second position code (8) has at least one position marker (14, 14.1, 14.2, 14.3, 14.4) from the first set multiple times.

2. Elevator shaft (2) according to claim 1, comprising at least one horizontal track (2.3, 2.4) and at least one vertical track (2.1, 2.2), wherein the position codes (7, 8) are each formed by a position code section (7.3, 7.4, 8.3, 8.4) assigned to the horizontal track (2.3, 2.4) and a position code section (7.1, 7.2, 8.1, 8.2) assigned to the vertical track (2.1, 2.2).

3. Elevator shaft (2) according to one of the preceding claims, comprising several track segments, wherein each track segment has a constant relation to each other of all combinations of two position markers (14, 14.1, 14.2, 14.3, 14.4) from the first set, and wherein the relation is uniquely assigned to a track segment.

4. Elevator shaft (2) according to claim 3, wherein the relation lies within a rounding area uniquely assigned to a lane segment.

5. Elevator shaft (2) according to one of the preceding claims, wherein the position markers (14, 14.1, 14.2, 14.3, 14.4) of the first set are optical position markers (14, 14.1, 14.2, 14.3, 14.4).

6. Elevator shaft (2) according to one of the preceding claims, wherein the first position code (7) and the second position code (8) or respective Position code sections (7.1, 7.2, 7.3, 7.4, 8.1, 8.2, 8.3, 8.4) of the first position code (7) and the second position code (8) in the direction of extension of at least one The lane (2.1, 2.2, 2.3, 2.4) or of a lane segment are arranged offset from each other.

7. Elevator system (1) with an elevator shaft (2) according to one of the preceding claims and at least one car (4.1, 4.2) movable along the at least one track (2.1, 2.2, 2.3, 2.4).

8. Elevator system (1) according to claim 7, comprising a linear drive with a primary part arranged in the elevator shaft (2) along the at least one track (2.1, 2.2, 2.3, 2.4) and a secondary part arranged on the at least one car (4.1, 4.2).

9. Elevator system (1) according to claim 8, wherein the at least one car (4.1, 4.2) has a cabin (10) and a carriage (11) rotatable relative to the cabin (10), wherein the secondary part of the linear drive is arranged on the carriage (11).

10. Elevator system (1) according to one of claims 7 to 9, wherein a first sensor (9.1) associated with the first position code (7) and a second sensor (9.2) associated with the second position code (8) are arranged on the at least one car (4.1, 4.2), in particular on the carriage (11) of the at least one car (4.1, 4.2).

11. Elevator system (1) according to claim 10, wherein the first sensor (9.1) and the second sensor (9.2) are arranged offset from each other in the extension direction of the at least one travel lane (2.1, 2.2, 2.3, 2.4).

12. Elevator system (1) according to claim 10, comprising several elevator cars (4.1, 4.2), wherein at least one elevator car (4.1, 4.2) has a first position code (7) assigned to it. Sensor (9.1) is arranged without a sensor assigned to the second position code (8) being arranged on the car (4.1, 4.2).

13. Lifting system (1) according to claim 10, further comprising a control device (13), wherein the control device (13) is configured to receive data from the first sensor (9.1) and the second sensor (9.2) and to determine a position (15.1, 15.2, 15.3, 15.4) of the car (4.1, 4.2) from the data.

14. Elevator system (1) according to claim 13, wherein the control device (13) has a non-volatile memory (13.1) in which data for assigning a combination of position markers (14, 14.1, 14.2, 14.3, 14.4) detected by the first sensor (9.1) and the second sensor (9.2) to a position (15.1, 15.2, 15.3, 15.4) along the elevator shaft (2) are stored.

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