Elevator system

Abstract

Provided is an elevator system capable of suppressing an increase in the workload of an operator during adjustment even when a plurality of units are provided. Each unit (4) of an elevator system (1) is provided with a car (7), a code belt (11), a reading device (12) and a control device (10). A reading device (12) provided in the car reads the position in the vertical direction from the code tape disposed in the hoistway (2). The control device (10) controls the travel of the car on the basis of the floor height data and the position in the vertical direction read by the reading device (12). The floor height data is data in which the floor stopping position of each floor corresponds to the position information on the code band. In the unit (4a), floor height data is acquired on the basis of the position in the vertical direction read by the reading device (12) when the car (7a) is stopped on each floor. In the unit (4b), the control device (10) controls the travel of the car (7b) using the floor height data acquired in the unit (4a).

Description

Technical Field

[0001] This disclosure relates to elevator systems. Background Technology

[0002] Patent Document 1 discloses an example of an elevator system. In this system, a code strip is disposed in the hoistway. A reading device installed in the car reads information indicating the position along the length direction of the code strip. The control device uses the position read by the reading device as the absolute position of the car for control processing. In this elevator system, a stopping position is set for each floor as the target position for stopping the car.

[0003] Patent Document 1: International Publication No. 2023 / 144985

[0004] In the elevator system of Patent Document 1, the stopping positions of each floor are set through initial adjustments during installation. When the elevator system has multiple units, the stopping positions of each floor need to be adjusted individually in each unit. Therefore, the workload of the personnel performing adjustments during installation increases. Summary of the Invention

[0005] This disclosure relates to a solution to this problem. This disclosure provides an elevator system that, even when having multiple units, can suppress the increased workload of operators during adjustments.

[0006] The elevator system disclosed herein has multiple units, including a first unit and a second unit. Each of the multiple units includes: a car that travels vertically throughout a hoistway; a code strip that is arranged vertically along the hoistway and is assigned vertical position information along its length; a reading device disposed in the car that reads the vertical position from the code strip; and a control device that controls the movement of the car based on floor height data that maps the stopping positions of each floor to the position information on the code strip and the vertical position read by the reading device. In the first unit, the floor height data is obtained based on the vertical position read by the reading device when the car stops at each floor. In the second unit, the control device uses the floor height data obtained in the first unit to control the movement of the car.

[0007] According to the elevator system disclosed herein, even with multiple units, the increased workload of operators during adjustment can be suppressed. Attached Figure Description

[0008] Figure 1 This is a structural diagram of the elevator system according to Implementation Method 1.

[0009] Figure 2 This is a diagram illustrating an example of adjusting floor height data in the elevator system of Embodiment 1.

[0010] Figure 3 This is a diagram illustrating an example of the correction of floor height data in the elevator system of Embodiment 1.

[0011] Figure 4 This is a flowchart illustrating an example of the adjustment operation of floor height data in the elevator system of Embodiment 1.

[0012] Figure 5 This is a hardware structure diagram of the main parts of the elevator system in Implementation Method 1.

[0013] Label Explanation

[0014] 1: Elevator system; 2: Shaft; 3: Landing; 4, 4a, 4b: Unit; 5: Traction machine; 6: Main rope; 7, 7a, 7b: Car; 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. Detailed Implementation

[0015] Referring to the accompanying drawings, the manner in which the present disclosure is implemented is described. In the drawings, the same or corresponding parts are labeled with the same reference numerals, and repeated descriptions are appropriately simplified or omitted. Furthermore, the present disclosure is not limited to the following embodiments, and any modifications or omissions of structural elements of the embodiments are possible without departing from the spirit of the present disclosure.

[0016] Implementation method 1.

[0017] Figure 1 This is a structural diagram of elevator system 1 according to implementation method 1.

[0018] Elevator system 1 is used, for example, in a building with multiple floors. In this building, a shaft 2 of elevator system 1 is provided. Shaft 2 is a long space extending vertically across multiple floors. At each floor of the building, a landing 3 of elevator system 1 is provided. Landing 3 is a location adjacent to shaft 2. Elevator system 1 has multiple units 4. Each unit 4 has a traction machine 5, a main rope 6, a car 7, a position detection system 8, a detection system 9, and a control device 10.

[0019] The traction machine 5 includes a motor and a sheave. The traction machine 5 is installed, for example, at the top or bottom of the shaft 2. For example, if a machine room is installed at the top of the shaft 2, the traction machine 5 can also be installed in the machine room. The motor of the traction machine 5 is a device that generates driving torque. The sheave of the traction machine 5 is connected to the rotating shaft of the motor of the traction machine 5. The sheave of the traction machine 5 rotates using the driving torque generated by the motor of the traction machine 5.

[0020] The main rope 6 is wound around the sheave of the traction machine 5. The main rope 6 moves by being wound on either side of the sheave of the traction machine 5 by means of the rotation of the sheave. The main rope 6 supports the load of the car 7 on either side of the rope of the traction machine 5.

[0021] The car 7 is positioned in the hoistway 2. The car 7 travels vertically through the hoistway 2 via the traction machine 5, moving the main rope 6 and covering its vertical travel distance. The vertical travel distance is the range of movement of the car 7 within the hoistway 2. In this example, the vertical travel distances of each unit 4 of the elevator system 1 are the same. The car 7 is a device that transports passengers between multiple floors by traveling vertically through the hoistway 2. Stop positions are set at each floor of the building where the elevator system 1 is used. The stop position of a floor is the vertical position at which the car 7 stops. A reference position is set in the building where the elevator system 1 is used. The reference position is, for example, a pre-set position relative to the top or bottom floor, or the very last floor. The reference position is, for example, a position pre-set at a distance below the stop position of the bottom floor.

[0022] The position detection system 8 corresponds to the 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 reading device 12.

[0023] The code tape 11 is a strip-shaped device that is longer in one direction. Information indicating the position along the length of the code tape 11 is provided throughout its length. For example, if the code tape 11 is magnetic tape, the information indicating the position along the length is provided as magnetic data. Alternatively, the information indicating the position along the length can be attached to the surface of the code tape 11, for example, as an encoded image containing a QR code. The code tape 11 is arranged in the shaft 2 with its length oriented vertically. One end of the code tape 11 in the vertical direction is fixedly installed in the shaft 2 as a fixed end 13. Furthermore, the other end of the code tape 11 in the vertical direction is installed in the shaft 2 as an adjustment end 14 so that its vertical position can be adjusted. In this example, the upper end of the code tape 11 is designated as the fixed end 13. In this example, the fixed end 13 is directly mounted to the structure of the building. The structure of the building includes, for example, the inner wall of the shaft 2, columns, or beams. Furthermore, the lower end of the code tape 11 is designated as the adjustment end 14. The adjusting end 14 is provided, for example, by a spring, so that tension can be applied to the code tape 11. Alternatively, the adjusting end 14 may be supported by a sliding bearing or the like so that it can slide in the vertical direction.

[0024] The reading device 12 is a device that reads information representing the position along the length direction assigned to the code tape 11. The reading device 12 is installed in the car 7 of the same unit 4. For example, the reading device 12 is installed on the outside of the car 7, such as on the upper part of the car. The reading device 12 moves vertically along the hoistway 2 together with the car 7. The reading device 12 reads the position information along the length direction from the code tape 11 as the vertical position information of the car 7, for example, using a magnetic sensor, camera, or other device. The reading device 12 is connected to the control device 10 of the same unit 4, enabling the output of the reading result.

[0025] The detection system 9 corresponds to the car 7 of the same unit 4. The detection system 9 is a system for detecting that the position of the corresponding car 7 is at a reference position. The detection system 9 includes a detected cam 15 and a detection switch 16. The detection switch 16 is a device for detecting the detected cam 15. The detection switch 16 and the detected cam 15 are examples of a detector and a detected object, respectively. The detection switch 16 can be, for example, a limit switch, or other switches or sensors. One of the detection switch 16 and the detected cam 15 is located in the corresponding car 7. The other of the detection switch 16 and the detected cam 15 is located at a position in the hoistway 2 corresponding to the reference position. The position corresponding to the reference position is the position where the detection switch 16 detects the detected cam 15 when the car 7 is at the reference position. The one of the detection switch 16 and the detected cam 15 located in the car 7 moves vertically along the hoistway 2 with the car 7. In this example, the detection system 9 detects the car 7 being at the reference position by contacting the detected cam 15 via the detection switch 16. The detection switch 16 is connected to the control device 10 of the same unit 4, enabling the output of detection results. In this example, the detected cam 15 is provided on the car 7. The detected cam 15 is provided, for example, on the outside of the car 7, such as on the upper part of the car. The detection switch 16 is provided at a position in the hoistway 2 corresponding to the reference position. The detection switch 16 is provided, for example, directly mounted on the structure of the building. Alternatively, the detection system 9 may also have a detector that detects the object being detected in a non-contact manner. The object being detected and the detector of the detection system 9 may also be a magnetic plate such as an iron plate and a magnetic sensor, a light shield and a photoelectric sensor, as well as an identifier and a camera, etc. In addition, the object being detected may also be provided at a position corresponding to the reference position. In this case, the detector is provided on the car 7. In this example, the detection system 9 of each unit 4 contains only one set of detector and object. Alternatively, the detection system 9 of each unit 4 may also contain one or both of multiple detectors and objects. In this case, each unit 4 may also not have a detection system 9.

[0026] Control device 10 corresponds to car 7 of the same unit 4. Control device 10 is a device that controls the operation of the corresponding car 7. The operation control of car 7 includes the management of calls registered in car 7, and the control of departure and stopping when responding to the call. Control device 10 is installed, for example, in the upper or lower part of the hoistway 2. For example, when a machine room is installed in the upper part of hoistway 2, control device 10 can also be installed in the machine room. Control device 10 controls the operation of car 7 according to the position read by reading device 12 installed in the corresponding car 7. Control device 10 pre-stores floor height data that maps the stopping position of each floor to the position information on the code tape 11. Control device 10 controls the movement of car 7 according to floor height data and the position read by reading device 12, so that the stopping position of departure floor or destination floor of the call registered in car 7 is used as the stopping target position for stopping car 7. Control device 10 can also use detection information from detection system 9 in the operation control of car 7. For example, when the reference position is the end of the travel range of the car 7, the control device 10 can also stop the car 7 from moving based on the detection information of the detection system 9.

[0027] Elevator system 1 includes a group management device 17. The group management device 17 is a device that manages the operation of elevator system 1. For example, the group management device 17 has the function of assigning elevator calls registered in floors 3, etc., to any unit 4. The group management device 17 is connected to the control devices 10 of each unit 4, enabling information communication. The group management device 17 may also have the function of relaying communication of control information, etc., between units 4.

[0028] Next, use Figure 2 This section provides an example illustrating the adjustment of floor height data.

[0029] Figure 2 This is a diagram illustrating an example of adjusting floor height data in elevator system 1 according to embodiment 1.

[0030] Floor height adjustments can be made, for example, during the installation of elevator system 1. Floor height adjustments can also be made after elevator system 1 has begun operation. Floor height adjustments can also be made during periodic or ad-hoc inspections of elevator system 1.

[0031] exist Figure 2The diagram shows units 4a and 4b, which are among the multiple units 4. The traction machine 5 and main rope 6 are omitted from the illustrations for units 4a and 4b. 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 detected cam 15a and a detection switch 16a. 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 detected cam 15b and a detection switch 16b. Units 4a and 4b are sometimes simply referred to as Unit 4 unless otherwise specified. Similarly, the equipment of each unit 4, such as control device 10a and control device 10b, and car 7a and car 7b, are sometimes referred to as control device 10 and car 7, etc., without specifically distinguishing between unit 4a and unit 4b.

[0032] In this example, car 7a of unit 4a and car 7b of unit 4b are adjacent to each other in the horizontal projection plane. That is, cars 7a and 7b are adjacent to each other in terms of their positional relationship when projected from the vertical direction onto the horizontal plane.

[0033] Before adjusting the floor height data, the control device 10 stores initial values ​​of the floor height data. These initial values ​​may include, for example, the designed stopping position. The designed stopping position is the position on the code strip 11 that corresponds to the stopping position of each floor. The designed stopping position is, for example, pre-stored before the installation of the control device 10. Alternatively, in an already operating elevator system 1, the initial values ​​of the floor height data may also be values ​​of floor height data used before adjustment work is performed.

[0034] The floor height data adjustment is performed using any unit 4 as a representative unit. In this example, unit 4a is used as the representative unit for floor height data adjustment. Unit 4a, as the representative unit, is an example of unit 1. Unit 4b, which is not used as a representative unit, is an example of unit 2.

[0035] The offset learning in unit 4a is a process of mapping the offset position, which serves as the origin of the code tape 11a located in the hoistway 2, to the position information on the code tape 11a. The offset position is, for example, a reference position. In offset learning, the operator performing the adjustment work manually moves the car 7a in the direction of the reference position. Manual operation is performed, for example, via the control device 10a or an operating panel located inside the car 7a or at the landing 3. In this example, the operator moves the car 7a towards the lower end of its 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 maps the position on the code tape 11a read by the reading device 12a to the reference position, which serves as the offset position.

[0036] Then, the operator acquires the floor height data in unit 4a. The operator automatically stops the car 7a at any floor. The automatic stopping operation is performed, for example, via an operation panel installed inside the car 7a. During automatic stopping, the control device 10a stops the car 7a at a position on the code tape 11a read by the reading device 12a that matches the initial value of the floor height data. Here, sometimes due to building construction errors, installation errors of unit 4a, elongation of the code tape 11a, or other reasons, a stopping error occurs between the initial value of the floor height data, such as the designed stopping position, and the actual stopping position. When the car 7a stops at the position corresponding to the initial value of the floor height data, the operator measures the stopping error between the height of the car 7a from the ground and the height of the landing 3. The operator automatically stops the car 7a sequentially from the lowest floor to the highest floor in unit 4a, and measures the stopping error for each floor.

[0037] Then, the operator inputs the stopping error measured for each floor into the control device 10a. The control device 10a modifies the initial value of the floor height data based on the input stopping error, thereby obtaining new floor height data. 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 in the travel control of the car 7a. The control device 10a sends the obtained floor height data to the group management device 17. The group management device 17 stores the floor height data sent from the control device 10a. In addition, the control device 10a can also send the floor height data to the group management device 17 when there is a request from the group management device 17.

[0038] Then, the operator performs the operation for cell 4b, which is not considered a representative cell. The operator performs offset learning for cell 4b. The offset learning in cell 4b is performed, for example, in the same way as the offset learning in cell 4a.

[0039] Then, control device 10b obtains and stores the floor height data acquired in unit 4a from control device 10a. Control device 10b uses the floor height data acquired from unit 4a as the floor height data for unit 4b in the driving control of car 7b. Control device 10b obtains the floor height data from control device 10a, for example, via group management device 17. Control device 10b requests group management device 17 to send the floor height data, for example, after offset learning. Group management device 17 sends the floor height data received and stored from control device 10a to control device 10b, for example. Alternatively, group management device 17 may request control device 10a to send the acquired floor height data when a request is received from control device 10b. Furthermore, if control device 10a and control device 10b can communicate without via group management device 17, control device 10b may also obtain the floor height data directly from control device 10a.

[0040] In the case of other cells 4, the process is the same as with cell 4b. Operators perform tasks such as offset learning and obtaining floor height data from cell 4a.

[0041] The control device 10b can directly use the floor height data obtained from the control device 10a for the driving control of the car 7b, or it can use the floor height data obtained from the control device 10a for the driving control of the car 7b after correction.

[0042] Next, use Figure 3 This section provides an example illustrating the correction of floor height data.

[0043] Figure 3 This is a diagram illustrating an example of the correction of floor height data in elevator system 1 according to embodiment 1.

[0044] In this example of elevator system 1, each unit 4 stops the car 7 at all n floors. Here, n is a positive integer. In this example, the integer n is greater than 2. All n floors include distinct 1st, 2nd, and nth floors. The 1st, 2nd, and nth floors can be any floor in the building where elevator system 1 is used, for example, the lowest floor in the elevator travel that includes the basement, a floor leading to the ground floor, a transfer floor, the highest floor in the elevator travel, or any other intermediate floor.

[0045] In the representative unit, the control device 10 learns the position R as an offset position. Furthermore, the control device 10 acquires position F1 as the stopping position for the first floor. Position F1 can be represented as F1 = R + (F1 - R) by decomposing it into the offset position R and the relative position (F1 - R). The floor height data can include the value of the absolute position F1 or the value of the relative position F1 - R. The control device 10 similarly acquires the stopping positions for other floors and stores them as floor height data. For example, the control device 10 acquires position F2 as the stopping position for the second floor and position Fn as the stopping position for the nth floor.

[0046] In other units 4 that are not representative units, the control device 10 learns the position r as an offset position. The control device 10 obtains floor height data from the representative unit and sets it as information for the stopping position used in the control of the corresponding car 7. The control device 10 sets position f1 as the stopping position for the first floor. Based on the relative position (F1-R) between the offset position r and the floor height data, the control device 10 sets the value of position f1 to f1 = r + (F1-R). The control device 10 similarly uses the floor height data obtained from the representative unit to set the stopping positions for other floors. For example, the control device 10 sets position f2 = r + (F2-R) as the stopping position for the second floor and position fn = r + (Fn-R) as the stopping position for the nth floor.

[0047] In the absence of calibration for other units 4 that are not representative units, the operator measures and reads position information at at least two locations using the measurement and reading device 12 in this unit 4. For example, similar to the representative unit, this measurement is performed by measuring the stop error and modifying the initial value of the floor height data using the stop error. These two locations are, for example, the stop position fj on the j-th floor and the stop position fk on the k-th floor. Here, integers j and k are distinct integers greater than 1 and less than n. The j-th floor and the k-th floor are, for example, the uppermost and lowermost floors of the lifting stroke. The control device 10 of this unit 4 calculates a correction coefficient c using the stop positions Fj on the j-th floor and Fk on the k-th floor included in the floor height data obtained in the representative unit. The control device 10 calculates the correction coefficient c, for example, by the ratio of the distance on the code band 11 between the floors of the corresponding unit 4 and the representative unit, as c = (fj - fk) / (Fj - Fk). Alternatively, the control device 10 can also use the offset position to calculate the correction coefficient c, such as c = (fj-r) / (Fj-R), etc.

[0048] Control device 10 sets position f1′ as the corrected stopping position for the first floor. Control device 10 sets the value of position f1′ to f1′ = r + c * (F1 - R) based on the offset position r and the relative position (F1 - R) of the floor height data multiplied by the correction coefficient c. Control device 10 similarly uses the floor height data obtained from the representative unit to set the stopping positions for other floors. For example, control device 10 sets position f2′ = r + c * (F2 - R) as the stopping position for the second floor, and position fn′ = r + c * (Fn - R) as the stopping position for the nth floor.

[0049] Figure 4 This is a flowchart illustrating an example of the adjustment operation of floor height data in elevator system 1 according to embodiment 1.

[0050] In step S0, the design stopping position is set as the initial value of the floor height data in the control device 10 of each unit 4. The design stopping position is set, for example, when the control device 10 is manufactured. Then, the processing of the floor height data adjustment operation proceeds to step S1.

[0051] In step S1, offset learning is performed on cell 4a, which serves as the representative cell. Then, the processing of the layer height data adjustment operation proceeds to step S2.

[0052] In step S2, the operator measures the floor height error for all floors in unit 4a. Then, the processing of the floor height data adjustment work proceeds to step S3.

[0053] In step S3, the operator inputs the measured floor height error information into the control device 10a. The control device 10a modifies the initial value of the floor height data, thereby obtaining new floor height data. The control device 10a sends the obtained new floor height data to the group management device 17. The group management device 17 saves the received floor height data. Then, the processing of the floor height data adjustment operation proceeds to step S4.

[0054] In step S4, offset learning is performed on cell 4b, which is not considered a representative cell. Then, the processing of the layer height data adjustment operation proceeds to step S5.

[0055] In step S5, it is determined whether to set the floor height data to be corrected in unit 4b. Whether to perform floor height data correction is preset in the control device 10b, for example, by the manager of elevator system 1. If correction is performed, the floor height data adjustment process proceeds to step S6. Otherwise, if correction is not performed, the floor height data adjustment process proceeds to step S8.

[0056] In step S6, the operator measures the stopping error of a portion of the floors in unit 4b. For example, the operator measures the stopping error at the lowest and highest floors of the elevator travel. Then, the processing of the floor height data adjustment operation proceeds to step S7.

[0057] In step S7, the operator inputs the measured floor stop error information into the control device 10b. The control device 10b modifies the initial value of the floor height data, thereby obtaining a new floor stop position for a subset of floors where the floor stop error was measured. The control device 10b calculates a correction coefficient based on the obtained floor stop position and the floor height data obtained in unit 4a. Then, the processing of the floor height data adjustment operation proceeds to step S8.

[0058] In step S8, the control device 10b uses the floor height data obtained in unit 4a to set the floor height data. Then, the processing of the floor height data adjustment operation ends.

[0059] As described above, the elevator system 1 has multiple units 4. Each unit 4 has a car 7, a code strip 11, a reading device 12, and a control device 10. The car 7 travels vertically throughout the hoistway 2. The code strip 11 is arranged vertically along its length throughout the hoistway 2. Vertical position information is assigned along the length of the code strip 11. The reading device 12 is located in the car 7. The reading device 12 reads the vertical position from the code strip 11. The control device 10 controls the movement 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 maps the stopping position of each floor to the position information on the code strip 11. In unit 4a, the floor height data is obtained based on the vertical position read by the reading device 12 when the car 7a stops at each floor. In unit 4b, the control device 10 uses the floor height data obtained in unit 4a to control the movement of the car 7b.

[0060] With this structure, even in the case of multiple units 4, the floor height data of all floors obtained in the representative unit can be used in other units 4, thus eliminating the need to measure the floor height data of all floors in all units 4. This reduces the workload of personnel performing adjustment work. Furthermore, by using floor height data that corresponds the position on the code tape 11 to the stop position, it is possible to directly utilize the floor height data obtained in the representative unit in other units 4, unaffected by significant deviations in each unit 4, such as differences in the diameter of the traction machine 5's sheaves and the elongation of the main rope.

[0061] Furthermore, in unit 4b, the control device 10b corrects the floor height data obtained in unit 4a based on the distance between the vertical position read by the reading device 12b when the car 7b stops at the first floor and the vertical position read by the reading device 12b when the car 7b stops at the second floor. The control device 10b uses the corrected floor height data to control the movement of the car 7b. With this structure, due to differences in each unit 4 such as the setting error or elongation of the correction code band 11, the movement of the car 7b can be controlled with higher precision.

[0062] Furthermore, the car 7a of unit 4a and the car 7b of 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 using floor height data obtained in unit 4a in unit 4b, the movement of car 7b can be controlled with higher precision. Additionally, the representative unit and other non-representative units using floor height data obtained in that representative unit may not be adjacent to each other in the unit 4.

[0063] Furthermore, the elevator system 1 includes a group management device 17. The group management device 17 manages the overall operation of multiple units 4. The group management device 17 transmits the floor height data obtained in unit 4a to the control device 10 of unit 4b. With this structure, since the floor height data can be transmitted via the group management device 17, it is not necessary to prepare new communication lines or the like to directly connect the units 4.

[0064] Next, use Figure 5 This is an example illustrating the hardware structure of elevator system 1.

[0065] Figure 5 This is an example of the hardware structure of the main part of the elevator system 1 in Implementation Method 1.

[0066] The various functions of elevator system 1 can be implemented by processing circuitry. Processing circuitry has at least one processor 100a and at least one memory 100b. Processing circuitry may also have at least one piece of dedicated hardware 200 together with or as a replacement for processor 100a and memory 100b.

[0067] When the processing circuit has a processor 100a and a memory 100b, the various functions of the elevator system 1 are implemented by software, firmware, or a combination of software and firmware. At least one of the software and firmware is described as a program. The program is stored in the memory 100b. The processor 100a implements the various functions of the elevator system 1 by reading and executing the program stored in the memory 100b. The program may also be a program package containing multiple subroutines, modules, or libraries. The program may also be a program product itself or a program included in the product.

[0068] The processor 100a is also called a CPU (Central Processing Unit), processing device, arithmetic device, microprocessor, microcomputer, or DSP. The memory 100b is composed of non-volatile or volatile semiconductor memories such as RAM, ROM, flash memory, EPROM, and EEPROM.

[0069] When the processing circuit has dedicated hardware 200, the processing circuit is implemented, for example, by a single circuit, a composite circuit, a programmable processor, a parallel programmable processor, an ASIC, an FPGA, or a combination thereof.

[0070] Each function of elevator system 1 can be implemented separately through processing circuits. Alternatively, each function of elevator system 1 can also be implemented uniformly through processing circuits. Regarding the functions of elevator system 1, some can be implemented by dedicated hardware 200, and others by software or firmware. In this way, the processing circuits implement the functions of elevator system 1 through dedicated hardware 200, software, firmware, or a combination thereof.

[0071] In summary, the structures that can be adopted by the technology disclosed herein include the following structures shown as appendices.

[0072] (Postscript 1)

[0073] An elevator system, wherein,

[0074] The elevator system has multiple units, including a first unit and a second unit.

[0075] Each of the plurality of units has:

[0076] The car travels vertically throughout the hoistway, covering its lifting and lowering strokes.

[0077] The code tape, which is arranged along the vertical direction along the length of the shaft, is configured to extend the vertical stroke and is given vertical position information along the length.

[0078] A reading device, disposed in the car, reads the vertical position from the code tape; and

[0079] The control device controls the movement of the elevator car based on the floor height data that maps the stopping positions of each floor to the position information on the code strip, and the vertical position read by the reading device.

[0080] In the first unit, the floor height data is obtained based on the vertical position read by the reading device when the car stops at each floor.

[0081] In the second unit, the control device uses the floor height data obtained in the first unit to control the movement of the car.

[0082] (Postscript 2)

[0083] According to the elevator system described in Appendix 1, wherein,

[0084] In the second unit, the control device corrects the floor height data obtained in the first unit based on the distance between the vertical position read by the reading device when the car stops at the first floor and the vertical position read by the reading device when the car stops at the second floor, and uses the corrected floor height data to control the movement of the car.

[0085] (Note 3)

[0086] According to the elevator system described in Appendix 1 or 2, wherein,

[0087] The car in the first unit and the car in the second unit are adjacent to each other in the horizontal projection plane.

[0088] (Postscript 4)

[0089] According to any one of the appendices 1 to 3, the elevator system wherein,

[0090] The elevator system has a group management device that manages the overall operation of the multiple units.

[0091] The group management device transmits the floor height data obtained in the first unit to the control device in the second unit.

Claims

1. An elevator system, wherein, The elevator system has multiple units, including a first unit and a second unit. Each of the plurality of units has: The car travels vertically throughout the hoistway, covering its lifting and lowering strokes. The code tape, which is arranged along the vertical direction along the length of the shaft, is configured to extend the vertical stroke and is given vertical position information along the length. A reading device, which is installed in the car, reads the vertical position from the code tape; as well as The control device controls the movement of the elevator car based on the floor height data that maps the stopping positions of each floor to the position information on the code strip, and the vertical position read by the reading device. In the first unit, the floor height data is obtained based on the vertical position read by the reading device when the car stops at each floor. In the second unit, the control device uses the floor height data obtained in the first unit to control the movement of the car.

2. The elevator system according to claim 1, wherein, In the second unit, the control device corrects the floor height data obtained in the first unit based on the distance between the vertical position read by the reading device when the car stops at the first floor and the vertical position read by the reading device when the car stops at the second floor, and uses the corrected floor height data to control the movement of the car.

3. The elevator system according to claim 1 or 2, wherein, The car in the first unit and the car in the second unit are adjacent to each other in the horizontal projection plane.

4. The elevator system according to claim 1 or 2, wherein, The elevator system has a group management device that manages the overall operation of the multiple units. The group management device transmits the floor height data obtained in the first unit to the control device in the second unit.

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