Elevator Systems

Abstract

To provide an elevator system capable of suppressing an increase in the workload of workers during adjustment even when the elevator system is equipped with a plurality of units. [Solution] Each unit 4 of the elevator system 1 includes a car 7, a code tape 11, a reader 12, and a control device 10. The reader 12 provided in the car 7 reads the vertical position from the code tape 11 arranged in the elevator shaft 2. The control device 10 controls the running of the car 7 based on the floor height data and the vertical position read by the reader 12. The floor height data is data that associates the landing position of each floor with the position information on the code tape 11. In the unit 4a, the floor height data is acquired based on the vertical position read by the reader 12 when the car 7a lands on each floor. In the unit 4b, the control device 10 controls the running of the car 7b using the floor height data acquired by the unit 4a.

Description

[Technical field]

[0001] The present disclosure relates to elevator systems. [Background technology]

[0002] Patent Document 1 discloses an example of an elevator system. In the elevator system, a code tape is placed in a hoistway. A reading device installed in the car reads information indicating a longitudinal position given to the code tape. A control device performs control processing using the position read by the reading device as the absolute position of the car. In the elevator system, a landing position is set for each floor as a target position for the car to land. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2023 / 144985 Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator system of Patent Document 1, the landing position of each floor is set by adjustment during initial installation. When an elevator system has multiple units, it is necessary to adjust the landing position of each floor individually for each unit. This increases the workload of workers who perform adjustment work during installation.

[0005] The present disclosure relates to solving such problems. The present disclosure provides an elevator system that can suppress an increase in the workload of workers during adjustment even when the elevator system includes multiple units. [Means for solving the problem]

[0006] The elevator system of the present disclosure comprises a plurality of units including a first unit and a second unit, each of the plurality of units comprising: a car that travels vertically in a hoistway throughout its ascent and descent stroke; a code tape that is arranged with its longitudinal direction oriented vertically throughout the ascent and descent stroke of the hoistway and has vertical position information assigned along the longitudinal direction; a reading device provided in the car that reads the vertical position from the code tape; and a control device that controls the travel of the car based on floor height data that corresponds to the landing position of each floor and the position information on the code tape, as well as the vertical position read by the reading device; and in the first unit, the floor height data is obtained based on the vertical position read by the reading device when the car lands on each floor, and in the second unit, the control device controls the travel of the car using the floor height data obtained by the first unit. Effect of the Invention

[0007] According to the elevator system of the present disclosure, even if there are multiple units, the increase in the workload of workers during adjustment is suppressed. [Brief description of the drawings]

[0008] [Figure 1] 1 is a configuration diagram of an elevator system according to a first embodiment. [Diagram 2] FIG. 4 is a diagram showing an example of adjustment of floor height data in the elevator system according to the first embodiment. [Diagram 3] FIG. 4 is a diagram showing an example of correction of floor height data in the elevator system according to the first embodiment. [Figure 4] 5 is a flowchart showing an example of an adjustment operation of floor height data in the elevator system according to the first embodiment. [Diagram 5] FIG. 2 is a hardware configuration diagram of a main part of the elevator system according to the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The embodiments for carrying out the subject of the present disclosure will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are given the same reference numerals, and duplicated descriptions are appropriately simplified or omitted. Note that the subject of the present disclosure is not limited to the following embodiments, and any component of the embodiment may be modified or omitted within the scope of the gist of the present disclosure.

[0010] Embodiment 1 FIG. 1 is a configuration diagram of an elevator system 1 according to the first embodiment.

[0011] An elevator system 1 is applied to, for example, a building having multiple floors. A hoistway 2 for the elevator system 1 is provided in the building. The hoistway 2 is a long space in the vertical direction spanning multiple floors. A landing 3 for the elevator system 1 is provided on each floor of the building. The landing 3 is a location adjacent to the hoistway 2. The elevator system 1 includes multiple units 4. Each unit 4 includes a hoisting machine 5, a main rope 6, a car 7, a position detection system 8, a detection system 9, and a control device 10.

[0012] The hoisting machine 5 includes a motor and a sheave. The hoisting machine 5 is provided, for example, at the upper or lower part of the hoistway 2. When a machine room is provided, for example, at the upper part of the hoistway 2, the hoisting machine 5 may be disposed in the machine room. The motor of the hoisting machine 5 is a device that generates a driving torque. The sheave of the hoisting machine 5 is connected to the rotating shaft of the motor of the hoisting machine 5. The sheave of the hoisting machine 5 rotates by the driving torque generated by the motor of the hoisting machine 5.

[0013] The main ropes 6 are wound around the sheaves of the hoisting machine 5. The main ropes 6 move so as to be wound up on either side of the sheaves of the hoisting machine 5 by the rotation of the sheaves of the hoisting machine 5. The main ropes 6 support the load of the car 7 on either side of the sheaves of the hoisting machine 5.

[0014] The car 7 is disposed in the hoistway 2. The hoist 5 moves the main rope 6, so that the car 7 travels up and down in the hoistway 2 over the course of its ascent and descent. The course of its ascent and descent is the range over which the car 7 ascends and descends in the hoistway 2. In this example, the course of its ascent and descent of each unit 4 of the elevator system 1 is common to each other. The car 7 is a device that transports passengers and the like between a plurality of floors by traveling up and down the hoistway 2. A landing position is set for each floor of the building to which the elevator system 1 is applied. The landing position of a floor of the building is a vertical position at which the car 7 stops on that floor. A reference position is set for the building to which the elevator system 1 is applied. The reference position is, for example, a position preset relative to the most extreme floor, such as the top floor or the bottom floor. The reference position is, for example, a position that is a preset distance below the landing position of the bottom floor.

[0015] The position detection system 8 corresponds to a car 7 of the same unit 4. The position detection system 8 is a system that detects the vertical position of the corresponding car 7. The position detection system 8 is, for example, an APS (Absolute Positioning System). The position detection system 8 includes a code tape 11 and a reader 12.

[0016] The code tape 11 is a tape-like device that is long in one direction. In the code tape 11, information representing the longitudinal position on the code tape 11 is provided along the longitudinal direction. For example, when the code tape 11 is a magnetic tape, the information representing the longitudinal position is provided to the code tape 11 as magnetic data. Alternatively, the information representing the longitudinal position may be provided on the surface of the code tape 11 as an encoded image including a two-dimensional code. The code tape 11 is placed in the hoistway 2 so that the longitudinal direction is directed vertically. One vertical end of the code tape 11 is fixed to the hoistway 2 as a fixed end 13. The other vertical end of the code tape 11 is set as an adjustable end 14 so that the vertical position can be adjusted movably with respect to the hoistway 2. In this example, the upper end of the code tape 11 is set as the fixed end 13. In this example, the fixed end 13 is directly attached to the structure of the building. The structure of the building includes, for example, the inner wall, pillar, or beam of the hoistway 2. Also, the lower end of the cord tape 11 is set as an adjustable end 14. The adjustable end 14 is set, for example, via a spring so as to apply tension to the cord tape 11. Alternatively, the adjustable end 14 may be supported by a slide bearing or the like so as to be slidable in the up and down direction.

[0017] The reading device 12 is a device that reads information indicating the longitudinal position given to the code tape 11. The reading device 12 is installed in the car 7 of the same unit 4. The reading device 12 is installed, for example, outside the car 7, such as on the car. The reading device 12 moves vertically in the elevator 2 together with the car 7. The reading device 12 reads the longitudinal position information from the code tape 11 as the vertical position information of the car 7, for example, by a magnetic sensor, a camera, or other device. The reading device 12 is connected to the control device 10 of the same unit 4 so as to be able to output the reading result.

[0018] The detection system 9 corresponds to the car 7 of the same unit 4. The detection system 9 is a system that detects that the position of the corresponding car 7 is at a reference position. The detection system 9 includes a detectable cam 15 and a detection switch 16. The detection switch 16 is a device that detects the detectable cam 15. The detection switch 16 and the detectable cam 15 are examples of a detector and a detectable object, respectively. The detection switch 16 may be, for example, a limit switch, or may be another switch or sensor. One of the detection switch 16 and the detectable cam 15 is installed on the corresponding car 7. The other of the detection switch 16 and the detectable cam 15 is installed at a position corresponding to the reference position in the hoistway 2. The position corresponding to the reference position is a position where the detection switch 16 detects the detectable cam 15 when the car 7 is at the reference position. The one of the detection switch 16 and the detectable cam 15 installed on the car 7 moves up and down in the hoistway 2 together with the car 7. In this example, the detection system 9 detects that the car 7 is in the reference position by the detection switch 16 detecting the detectable cam 15 by contact. The detection switch 16 is connected to the control device 10 of the same unit 4 so as to be able to output the detection result. In this example, the detectable cam 15 is installed on the car 7. The detectable cam 15 is installed, for example, on the outside of the car 7, such as on the car. The detection switch 16 is installed at a location corresponding to the reference position in the elevator 2. The detection switch 16 is, for example, directly attached to the structure of the building. Note that the detection system 9 may include a detector that detects the detectable object without contact. The detectable object and the detector of the detection system 9 may be a magnetic plate such as an iron plate and a magnetic sensor, a light shielding plate and a photoelectric sensor, a marker and a camera, etc. Also, the detectable object may be installed at a location corresponding to the reference position. In this case, the detector is installed on the car 7. In this example, the detection system 9 of each unit 4 includes only one pair of a detector and a detectable object. The detection system 9 of each unit 4 may include a plurality of detectors or detection objects, or both. In this case, each unit 4 does not necessarily have to include the detection system 9.

[0019] The control device 10 corresponds to the car 7 of the same unit 4. The control device 10 is a device that controls the operation of the corresponding car 7. The control of the operation of the car 7 includes management of the calls registered in the car 7, and control of running such as starting and stopping when responding to the calls. The control device 10 is provided, for example, at the upper or lower part of the elevator shaft 2. For example, when a machine room is provided at the upper part of the elevator shaft 2, the control device 10 may be arranged in the machine room. The control device 10 controls the operation of the car 7 based on the position read by the reading device 12 provided in the corresponding car 7. The control device 10 prestores floor height data that associates the landing position of each floor with the position information on the code tape 11. The control device 10 controls the running of the car 7 so that the landing position of the departure floor or destination floor of the call registered in the car 7 is set as the stop target position based on the floor height data and the position read by the reading device 12. The control device 10 may use the detection information by the detection system 9 to control the operation of the car 7. For example, when the reference position is a position indicating the end of a range in which the car 7 can travel, the control device 10 may stop the travel of the car 7 based on the detection information by the detection system 9.

[0020] The elevator system 1 includes a group control device 17. The group control device 17 is a device that controls the operation of the elevator system 1. The group control device 17 has a function of assigning a call of a user registered at a hall 3 or the like to one of the units 4. The group control device 17 is connected to the control device 10 of each unit 4 so as to be able to communicate information. The group control device 17 may have a function of relaying communication of control information and the like between the units 4.

[0021] Next, an example of adjusting the floor height data will be described with reference to FIG. FIG. 2 is a diagram showing an example of adjustment of floor height data in the elevator system 1 according to the first embodiment. The floor height data is adjusted, for example, when the elevator system 1 is installed. The floor height data may be adjusted after the elevator system 1 starts operating. The floor height data may be adjusted, for example, when the elevator system 1 is inspected regularly or irregularly.

[0022] In FIG. 2, among the multiple units 4, the units 4a and 4b are shown. Note that the illustration of the hoist 5 and the main rope 6 is omitted for the units 4a and 4b. The unit 4a includes a car 7a, a position detection system 8a, a detection system 9a, and a control device 10a. The position detection system 8a includes a code tape 11a and a reading device 12a. The detection system 9a includes a detectable cam 15a and a detection switch 16a. The unit 4b includes a car 7b, a position detection system 8b, a detection system 9b, and a control device 10b. The position detection system 8b includes a code tape 11b and a reading device 12b. The detection system 9b includes a detectable cam 15b and a detection switch 16b. Note that when there is no particular distinction between the units 4a and 4b, they may be simply referred to as unit 4. Similarly, the equipment of each unit 4, such as the control device 10a and the control device 10b, and the car 7a and the car 7b, may be simply referred to as the control device 10 and the car 7, etc., when there is no particular distinction between the unit 4a and the unit 4b.

[0023] In this example, the car 7a of the unit 4a and the car 7b of the unit 4b are adjacent to each other in the horizontal projection plane, i.e., the car 7a and the car 7b are adjacent to each other in the positional relationship when projected from the vertical direction onto the horizontal plane.

[0024] Before adjusting the floor height data, the control device 10 stores an initial value of the floor height data. The initial value of the floor height data is, for example, a designed stop position. The designed stop position is a designed position on the code tape 11 that corresponds to the landing position of each floor. The designed stop position is stored in advance, for example, before the installation of the control device 10. Note that in an elevator system 1 that is already in operation, the initial value of the floor height data may be, for example, the value of the floor height data that was used before the adjustment work was performed.

[0025] The adjustment of the floor height data is performed by using one of the units 4 as a representative unit. In this example, the adjustment of the floor height data is performed by using the unit 4a as the representative unit. The unit 4a, which is the representative unit, is an example of the first unit. The unit 4b, which is not the representative unit, is an example of the second unit.

[0026] The offset learning in the unit 4a is a process of associating an offset position, which is the origin of the code tape 11a installed in the elevator 2, with the position information on the code tape 11a. The offset position is, for example, a reference position. In the offset learning, the worker performing the adjustment work manually drives the car 7a in the direction of the reference position. The manual driving is performed, for example, through the control device 10a or an operation panel installed in the car 7a or at the landing 3. In this example, the worker drives the car 7a toward the bottom end of the lifting stroke. When the detection system 9a detects that the car 7a has reached the reference position, the control device 10a stops the car 7a. At this time, the position of the car 7a is at the reference position. The control device 10a associates the position on the code tape 11 that is being read by the reading device 12a with the reference position, which is an offset position.

[0027] After that, the worker performs the work of acquiring floor height data in the unit 4a. The worker automatically lands the car 7a on any floor. The operation of the automatic landing is performed, for example, through an operation panel provided in the car 7a. In the automatic landing, the control device 10a stops the car 7 at a position where the position on the code tape 11a read by the reading device 12a matches the initial value of the floor height data. Here, due to the architectural error of the building, the installation error of the unit 4a, the stretching of the code tape 11a, or other reasons, a landing error may occur between the initial value of the floor height data such as the design stopping position and the actual landing position. When the car 7a is stopped at a position corresponding to the initial value of the floor height data, the worker measures the landing error between the height of the floor surface of the car 7a and the height of the floor surface of the landing 3. The worker automatically lands the car 7a on the unit 4a, for example, from the lowest floor to the highest floor, and measures the landing error for each floor.

[0028] After that, the worker inputs the floor landing error measured for each floor into the control device 10a. The control device 10a obtains new floor height data by correcting the initial value of the floor height data using the input floor landing error. The floor height data is represented, for example, by a relative position based on the offset position. The control device 10a uses the obtained floor height data to control the running of the car 7a. The control device 10a transmits the obtained floor height data to the group management device 17. The group management device 17 stores the floor height data transmitted from the control device 10a. The control device 10a may transmit the floor height data to the group management device 17 when requested by the group management device 17.

[0029] After that, the worker performs the work on the unit 4b which is not the representative unit. The worker performs offset learning on the unit 4b. The offset learning on the unit 4b is performed in the same manner as the offset learning on the unit 4a, for example.

[0030] Thereafter, the control device 10b acquires the floor height data acquired in the unit 4a from the control device 10a and stores it. The control device 10b uses the floor height data acquired from the unit 4a as the floor height data of the unit 4b to control the running of the car 7b. The control device 10b acquires the floor height data from the control device 10a, for example, through the group management device 17. The control device 10b requests the group management device 17 to transmit the floor height data, for example, after offset learning. The group management device 17 transmits the floor height data received and stored from the control device 10a to the control device 10b. Alternatively, the group management device 17 may request the control device 10a to transmit the acquired floor height data when requested by the control device 10b. Note that when the control devices 10a and 10b are capable of communicating without going through the group management device 17, the control device 10b may acquire the floor height data directly from the control device 10a.

[0031] If there is another unit 4, the worker performs tasks such as offset learning and acquisition of floor height data from unit 4a in the same manner as for unit 4b.

[0032] The control device 10b may use the floor height data acquired from the control device 10a as is to control the running of the car 7b, or may correct the floor height data acquired from the control device 10a and then use it to control the running of the car 7b.

[0033] Next, an example of correction of floor height data will be described with reference to FIG. FIG. 3 is a diagram showing an example of correction of floor height data in the elevator system 1 according to the first embodiment.

[0034] In the elevator system 1 of this example, each unit 4 lands the car 7 on a total of n floors, where n is a positive integer. In this example, the integer n is greater than 2. The total of n floors include a first floor, a second floor, and an nth floor that are different from each other. The first floor, the second floor, and the nth floor may be any floor of the building to which the elevator system 1 is applied, and may be, for example, the lowest floor of the ascending / descending course including a basement floor, a ground floor leading to the ground, a transfer floor, the highest floor of the ascending / descending course, or any other intermediate floor.

[0035] In the representative unit, the control device 10 learns the position R as an offset position. The control device 10 also acquires the position F1 as the landing position of the first floor. The position F1 can be expressed by decomposing it into an offset position R and a relative position (F1-R) such as F1=R+(F1-R). The floor height data may include the value of the absolute position F1 or may include the value of the relative position F1-R. The control device 10 similarly acquires the landing positions of the other floors and stores them as floor height data. For example, the control device 10 acquires the position F2 as the landing position of the second floor and the position Fn as the landing position of the nth floor.

[0036] In the other units 4 that are not the representative unit, the control device 10 learns the position r as the offset position. The control device 10 acquires floor height data from the representative unit and sets it as information on the floor landing position used to control the corresponding car 7. The control device 10 sets the position f1 as the floor landing position of the first floor. The control device 10 sets the value of the position f1 as f1=r+(F1-R) based on the offset position r and the relative position (F1-R) of the floor height data. The control device 10 similarly sets the floor landing positions for the other floors using the floor height data acquired from the representative unit. For example, the control device 10 sets the position f2=r+(F2-R) as the floor landing position of the second floor, and the position fn=r+(Fn-R) as the floor landing position of the nth floor.

[0037] When a unit 4 other than the representative unit performs correction, the position information read by the reading device 12 at at least two positions in the unit 4 is measured by an operator. The measurement is performed, for example, in the same way as the representative unit, through measurement of the landing error and correction of the initial value of the floor height data using the landing error. The two positions are, for example, the landing position fj of the jth floor and the landing position fk of the kth floor. Here, the integer j and the integer k are different integers between 1 and n. The jth floor and the kth floor are, for example, the top floor and the bottom floor of the ascent / descent process. The control device 10 of the unit 4 calculates the correction coefficient c using the landing position Fj of the jth floor and the landing position Fk of the kth floor included in the floor height data acquired by the representative unit. The control device 10 calculates the correction coefficient c as c=(fj-fk) / (Fj-Fk) based on the ratio of the distance between the floor of the corresponding unit 4 and the representative unit on the code tape 11. The control device 10 may also calculate the correction coefficient c as c=(fj-r) / (Fj-R) using the offset position.

[0038] The control device 10 sets the position f1' as the landing position of the first floor after correction. The control device 10 sets the value of position f1' as f1'=r+c*(F1-R) based on the offset position r and the value obtained by multiplying the relative position (F1-R) of the floor height data by the correction coefficient c. The control device 10 similarly sets the landing positions of the other floors using the floor height data acquired from the representative unit. For example, the control device 10 sets the position f2'=r+c*(F2-R) as the landing position of the second floor, and the position fn'=r+c*(Fn-R) as the landing position of the nth floor.

[0039] FIG. 4 is a flowchart showing an example of an adjustment operation of floor height data in the elevator system 1 according to the first embodiment.

[0040] In step S0, a design stop position is set as an initial value of the floor height data in the control device 10 of each unit 4. The design stop position is set, for example, when the control device 10 is shipped from the factory. After that, the processing in the floor height data adjustment work proceeds to step S1.

[0041] In step S1, offset learning is performed for the representative unit 4a. After that, the process of adjusting the floor height data proceeds to step S2.

[0042] In step S2, the worker measures the floor landing errors of all floors with the unit 4a. After that, the process of adjusting the floor height data proceeds to step S3.

[0043] In step S3, the worker inputs the measured floor landing error information into the control device 10a. The control device 10a obtains new floor height data by correcting the initial value of the floor height data. The control device 10a transmits the obtained new floor height data to the group management device 17. The group management device 17 stores the received floor height data. After that, the processing in the floor height data adjustment work proceeds to step S4.

[0044] In step S4, offset learning is performed on the unit 4b that is not the representative unit. After that, the process of adjusting the story height data proceeds to step S5.

[0045] In step S5, it is determined whether the unit 4b is set to correct the floor height data. Whether or not to correct the floor height data is set in advance in the control device 10b by, for example, an administrator of the elevator system 1. If correction is to be performed, the process in the floor height data adjustment work proceeds to step S6. On the other hand, if correction is not to be performed, the process in the floor height data adjustment work proceeds to step S8.

[0046] In step S6, the worker measures the landing error of some floors with the unit 4b. For example, the worker measures the landing error of two floors, the lowest floor and the top floor of the ascent / descent process. After that, the process of adjusting the floor height data proceeds to step S7.

[0047] In step S7, the worker inputs the measured floor landing error information to the control device 10b. The control device 10b obtains new floor landing positions for some floors where the floor landing errors were measured by correcting the initial value of the floor height data. The control device 10b calculates a correction coefficient based on the obtained floor landing positions and the floor height data obtained in the unit 4a. After that, the processing for adjusting the floor height data proceeds to step S8.

[0048] In step S8, the control device 10b sets the floor height data using the floor height data acquired in the unit 4a. After that, the processing in the floor height data adjustment work is completed.

[0049] As described above, the elevator system 1 includes a plurality of units 4. Each unit 4 includes a car 7, a code tape 11, a reading device 12, and a control device 10. The car 7 travels up and down in the hoistway 2 during the ascent and descent process. The code tape 11 is arranged with its longitudinal direction facing up and down during the ascent and descent process of the hoistway 2. The code tape 11 is provided with vertical position information along its longitudinal direction. The reading device 12 is provided in the car 7. The reading device 12 reads the vertical position from the code tape 11. The control device 10 controls the travel of the car 7 based on the floor height data and the vertical position read by the reading device 12. The floor height data is data that associates the landing position of each floor with the position information on the code tape 11. In the unit 4a, floor height data is acquired based on the vertical position read by the reading device 12 when the car 7a is landed on each floor. In the unit 4b, the control device 10 controls the running of the car 7b using the floor height data acquired in the unit 4a.

[0050] With this configuration, even when there are multiple units 4, the floor height data of all floors acquired by the representative unit can be used by the other units 4, eliminating the need to measure floor height data of all floors in all units 4. This reduces the workload of workers performing adjustment work. In addition, by using floor height data that corresponds the position on the code tape 11 to the floor landing position, the floor height data acquired by the representative unit can be used by the other units 4 as is, without being affected by factors that vary greatly between units 4, such as differences in the sheave diameter of the hoisting machine 5 and differences in the elongation of the main rope.

[0051] In addition, in the unit 4b, the control device 10b corrects the floor height data acquired by the unit 4a based on the distance between the vertical position read by the reading device 12b when the car 7b lands on the first floor and the vertical position read by the reading device 12b when the car 7b lands on the second floor. The control device 10b controls the running of the car 7b using the corrected floor height data. With this configuration, differences between units 4, such as installation errors or elongation of the code tape 11, are corrected, so that the running of the car 7 can be controlled with greater precision.

[0052] Also, the car 7a of the unit 4a and the car 7b of the unit 4b are adjacent to each other in the horizontal projection plane. Since the difference in construction error between adjacent units 4 is particularly small, even when the floor height data acquired by the unit 4a is used by the unit 4b, the running of the car 7b can be controlled with higher precision. Note that the representative unit and the other non-representative units that use the floor height data acquired by the representative unit do not have to be adjacent units 4.

[0053] The elevator system 1 also includes a group control device 17. The group control device 17 manages the operation of the entire plurality of units 4. The group control device 17 transmits floor height data acquired by unit 4a to the control device 10 of unit 4b. With this configuration, floor height data can be transmitted via the group control device 17, making it unnecessary to prepare new communication lines or the like that directly connect the units 4 together.

[0054] Next, an example of a hardware configuration of the elevator system 1 will be described with reference to FIG. FIG. 5 is a hardware configuration diagram of a main part of the elevator system 1 according to the first embodiment.

[0055] Each function of the elevator system 1 may be realized by a processing circuit. The processing circuit includes at least one processor 100a and at least one memory 100b. The processing circuit may include at least one dedicated hardware 200 in addition to or in place of the processor 100a and the memory 100b.

[0056] When the processing circuit includes the processor 100a and the memory 100b, each function of the elevator system 1 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. The program is stored in the memory 100b. The processor 100a realizes each function of the elevator system 1 by reading and executing the program stored in the memory 100b. The program may be a program package including multiple subprograms, modules, libraries, or the like. The program may be a product itself, such as a program product, or a program included in the product.

[0057] The processor 100a is also called a CPU (Central Processing Unit), a processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. The memory 100b is composed of a non-volatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM.

[0058] Where the processing circuitry comprises dedicated hardware 200, the processing circuitry may be implemented, for example, as a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0059] Each function of the elevator system 1 can be realized by a processing circuit. Alternatively, each function of the elevator system 1 can be realized collectively by a processing circuit. Some of the functions of the elevator system 1 may be realized by dedicated hardware 200, and the other parts may be realized by software or firmware. In this way, the processing circuit realizes each function of the elevator system 1 by dedicated hardware 200, software, firmware, or a combination of these.

[0060] To summarize the above explanation, possible configurations of the technology according to the present disclosure include the configurations listed below as appendices. (Appendix 1) The present invention includes a plurality of units including a first unit and a second unit, Each of the plurality of units comprises: A car that travels up and down the hoistway throughout its ascent and descent, a code tape arranged with its longitudinal direction facing the vertical direction throughout the ascending and descending stroke of the elevator shaft and having vertical position information provided along the longitudinal direction; A reading device provided in the car and configured to read a vertical position from the code tape; a control device that controls the running of the car based on floor height data that associates the landing position of each floor with the position information on the code tape, and the vertical position read by the reading device; Equipped with In the first unit, the floor height data is acquired based on the vertical position read by the reading device when the car lands on each floor, In the second unit, the control device controls the running of the car using the floor height data acquired in the first unit. Elevator system. (Appendix 2) In the second unit, the control device corrects the floor height data acquired in the first unit based on the distance between the vertical position read by the reading device when the car lands on a first floor and the vertical position read by the reading device when the car lands on a second floor, and controls the running of the car using the corrected floor height data. 2. The elevator system of claim 1. (Appendix 3) The cage of the first unit and the cage of the second unit are adjacent to each other in a horizontal projection plane. 13. The elevator system of claim 1 or 2. (Appendix 4) A group management device for managing the overall operation of the plurality of units Equipped with The group management device transmits the floor height data acquired by the first unit to the control device of the second unit. 4. An elevator system according to any one of claims 1 to 3. [Explanation of symbols]

[0061] 1 elevator system, 2 hoistway, 3 landing, 4, 4a, 4b unit, 5 hoisting machine, 6 main rope, 7, 7a, 7b cage, 8, 8a, 8b position detection system, 9, 9a, 9b detection system, 10, 10a, 10b control device, 11, 11a, 11b code tape, 12, 12a, 12b reading device, 13 fixed end, 14 adjustment end, 15, 15a, 15b detected cam, 16, 16a, 16b detection switch, 17 group management device, 100a processor, 100b memory, 200 dedicated hardware

Claims

1. The present invention includes a plurality of units including a first unit and a second unit, Each of the plurality of units comprises: A car that travels up and down the hoistway throughout its ascent and descent, a code tape arranged with its longitudinal direction facing the vertical direction throughout the ascending and descending stroke of the elevator shaft and having vertical position information provided along the longitudinal direction; A reading device provided in the car and configured to read a vertical position from the code tape; a control device that controls the running of the car based on floor height data that associates the landing position of each floor with the position information on the code tape, and the vertical position read by the reading device; Equipped with In the first unit, the floor height data is acquired based on the vertical position read by the reading device when the car is landed on each floor, In the second unit, the control device controls the running of the car using the floor height data acquired in the first unit. Elevator system.

2. In the second unit, the control device corrects the floor height data acquired in the first unit based on a distance between a vertical position read by the reading device when the car lands on a first floor and a vertical position read by the reading device when the car lands on a second floor, and controls the running of the car using the corrected floor height data.

2. The elevator system of claim 1.

3. The cage of the first unit and the cage of the second unit are adjacent to each other in a horizontal projection plane.

3. An elevator system according to claim 1 or 2.

4. A group management device for managing the overall operation of the plurality of units Equipped with The group management device transmits the floor height data acquired by the first unit to the control device of the second unit.

3. An elevator system according to claim 1 or 2.

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