Elevator design system

Abstract

The renovation design will take into account the changes in the characteristics of the equipment that will be reused in the refurbished elevators. [Solution] One aspect of the technology disclosed herein is an elevator design system. The elevator design system includes: a first acquisition means for acquiring current equipment parameters that indicate the system characteristics of the current elevator or the characteristics of the current equipment that constitutes the current elevator, from data detected at predetermined times such as maintenance regarding the state of the current elevator, which is an elevator to be renewed; a second acquisition means for acquiring new equipment parameters that indicate the characteristics of the new equipment, which is replacement equipment linked to a renewal menu; and a design means for predicting the elevator characteristics of the new elevator, which is an elevator after renewal, in a model-based manner using the current equipment parameters and the new equipment parameters, and designing at least one of the equipment configuration of the new elevator, the control method of the new elevator, and the timing of renewal of the current elevator or the new elevator, based on the predicted elevator characteristics.

Description

[Technical Field]

[0001] This disclosure relates to an elevator design system. [Background technology]

[0002] Patent Document 1 discloses a BIM (Building Information Modeling) system. The BIM system in Patent Document 1 includes a function to create BIM parts of an elevator (i.e., a 3D model of the elevator) according to conditions, using part information including information about the elevator. Furthermore, when an elevator is renewed, the BIM system in Patent Document 1 creates a pre-renewal integrated BIM model by incorporating the BIM parts of the elevator before renewal into the BIM model, and a post-renewal integrated BIM model by incorporating the BIM parts of the elevator after renewal into the BIM model, and displays both integrated BIM models side by side. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2014-10635 [Overview of the project] [Problems that the invention aims to solve]

[0004] In elevator renovations, some equipment is often retained and reused after the renovation. Therefore, the renovated system will have a mix of old and new components. Meanwhile, the system's behavioral characteristics change due to aging and deterioration, or due to parts replacement during maintenance. As a result, after an elevator renovation, phenomena that were not present before the renovation, such as car vibration, may occur.

[0005] To prevent such situations, it is effective to evaluate the characteristics of the refurbished elevator through preliminary studies using models and to take countermeasures. In order to accurately evaluate and design a refurbished elevator with a mix of old and new equipment, information on the characteristics of the existing equipment to be reused is necessary, in addition to the characteristics of the new equipment. However, the characteristics of the existing equipment to be reused may have changed since installation due to maintenance, deterioration, and the influence of the usage environment. Therefore, it is difficult to accurately evaluate the characteristics of the refurbished elevator by simply using the characteristics information from the time of installation. In this regard, although the BIM system in Patent Document 1 is configured to create BIM parts for the elevator before and after renovation, the system after renovation does not take into account information on the existing equipment to be reused, or changes in characteristics due to deterioration, etc.

[0006] This disclosure provides a technology that enables renovation design that takes into account changes in the characteristics of equipment reused in renovated elevators, in order to solve the above problems. [Means for solving the problem]

[0007] One aspect of the technology disclosed herein is an elevator design system. The elevator design system includes: a first acquisition means for acquiring current equipment parameters that indicate the system characteristics of the current elevator or the characteristics of the current equipment that constitutes the current elevator, from data detected about the state of the current elevator, which is an elevator to be renewed; a second acquisition means for acquiring new equipment parameters that indicate the characteristics of the new equipment, which is replacement equipment linked to a renewal menu; and a design means for predicting the elevator characteristics of the new elevator, which is an elevator after renewal, in a model-based manner using the current equipment parameters and the new equipment parameters, and designing at least one of the equipment configuration of the new elevator, the control method of the new elevator, and the timing of renewal of the current elevator or the new elevator, based on the predicted elevator characteristics. [Effects of the Invention]

[0008] According to the present disclosure, when performing renewal design for an elevator, the renewal design can be carried out in consideration of changes in the characteristics of equipment that will be reused in the elevator after renewal. Brief Description of Drawings

[0009] [Figure 1] This is a block diagram showing the functional configuration of the elevator design system according to Embodiment 1 of the present disclosure. [Figure 2] This is a diagram showing an example of renewal design by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 3] This is an example of the output of an AE sensor used in the renewal design by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 4] This is an example of the output of a strain sensor used in the renewal design by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 5] This is an example of the output of an angle sensor used in the renewal design by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 6] This is an example of the remaining life rate of component equipment calculated during the renewal design by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 7] This is a diagram showing an overview of an example of the renewal timing design method by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 8] This is a diagram showing an overview of an example of the renewal timing design method by the elevator design system according to Embodiment 1 of the present disclosure. [Figure 9] This is a block diagram showing the functional configuration of the elevator design system according to Embodiment 2 of the present disclosure. Modes for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and descriptions thereof will be simplified or omitted.

[0011] Embodiment 1. Figure 1 is a block diagram showing a functional configuration of an elevator design system according to Embodiment 1 of the present disclosure. The elevator design system (hereinafter also simply referred to as "the system") 100 according to the present embodiment has a function of performing renewal design of an elevator. For simplification of the description below, the pre-renewal elevator to be subjected to renewal is referred to as "the existing elevator", and the elevator after being renewed from the existing elevator is also referred to as "the new elevator". Further, the constituent devices of the existing elevator are referred to as "existing devices", and replacement devices associated with the renewal menu of the new elevator are also referred to as "new devices".

[0012] As shown in Figure 1, the system 100 includes a first acquisition unit 10, a second acquisition unit 20, and a design unit 30. However, each of the units 10, 20, 30 does not need to be provided in the system 100 as a physically separate individual device. The system 100 includes, for example, one or more processors and one or more storage devices, and may be configured such that the functions of the respective units 10, 20, 30 are implemented by the processors executing programs recorded in the storage devices. In addition, the functions of each of the units 10, 20, 30 do not necessarily need to be incorporated in a single device. For example, the system 100 may be configured such that one or more processing devices included therein are communicably connected to cooperate to perform the renewal design of the elevator.

[0013] The first acquisition means 10 also functions as a storage means and stores actual equipment data, information on the deterioration characteristics of the current equipment which has been known in advance, and current equipment parameters. Here, the actual equipment data is data on the state of the elevator detected at various predetermined timings up to the time of elevator renewal design, such as during maintenance or on-site inspection of the current elevator. The current equipment parameters are parameters that indicate the system characteristics of the current elevator, or the specifications or characteristics of the current equipment.

[0014] The first acquisition means 10 has a function to estimate the current equipment parameters using the current equipment parameters and actual equipment data stored in the first acquisition means 10, as well as information on the degradation characteristics of the current equipment that has been previously determined. Note that the degradation characteristics information is not limited to that previously stored in the first acquisition means 10, but may also be input from an external source. The first acquisition means 10 stores the estimated current equipment parameters. Details of the current equipment parameters will be described later.

[0015] The second acquisition means 20 stores the new equipment parameters. The new equipment parameters are parameters that indicate the characteristics of each new piece of equipment, which is replacement equipment linked to the renewal menu. The new equipment parameters are the default values ​​for each new piece of equipment when it is new, and include parameters that correspond to the current equipment parameters of the first acquisition means 10. The new equipment parameters for the various components used in the elevator are stored in advance in an external storage means such as a server, associated with numbers that can identify the type of component, such as the part number of each part. Whenever the renewal menu changes, the second acquisition means 20 acquires and updates the new equipment parameters linked to the renewal menu from the external storage means such as a server. However, the second acquisition means 20 may be configured to store the new equipment parameters for all the various components used in the elevator.

[0016] Furthermore, there are no limitations on the data storage location for the first acquisition means 10 and the second acquisition means 20; for example, the data may be stored in the elevator itself or on a server. If the parameters used by the first acquisition means 10 and the second acquisition means 20 are stored in an external storage means, the first acquisition means 10 and the second acquisition means 20 will acquire the parameters from the external storage means via a communication means.

[0017] The design means 30 stores various models for elevator design. These models may include information about the building where the elevator subject to renewal design is installed, as well as information about the elevator's specifications. The design means 30 uses parameters obtained from the first acquisition means 10 and the second acquisition means 20 to perform design related to the elevator renewal. The design related to the renewal includes at least one of the following: the equipment configuration of the new elevator, the control method of the new elevator, and the timing of the renewal of the current or new elevator. The design means 30 outputs the results of the renewal design to a display device or the like.

[0018] Specifically, the outline of the design using System 100 is described below.

[0019] 1. Vibration System 100 can propose an elevator renewal design based on data regarding the vibration of the current elevator. In this case, maintenance personnel or inspectors detect car vibration data as actual machine data during maintenance inspections or on-site surveys. The detected actual machine data is stored in the first acquisition means 10.

[0020] The car vibration data is the measurement of the car's vibration when the elevator car is excited. The car may be excited by external equipment such as a vibration exciter, or it may be excited directly by a person. The vibration can be measured, for example, by external vibration measuring equipment or by vibration sensors installed in the elevator. From the measured car vibration data, current equipment parameters indicating system characteristics can be obtained, for example, the natural frequency f.n is estimated. The natural frequency f n is not limited to any specific estimation method, but an example will be described below.

[0021] Here, the natural frequency f n is expressed by the following formula (1) when the elevator is considered as a spring-mass model composed of a mass point of equivalent mass M and a spring of equivalent stiffness K. [Formula]

[0022] The equivalent mass M of the elevator and the equivalent stiffness K of the spring are variables that change depending on the combination of the constituent devices. For example, in the case of longitudinal vibration of the car of an elevator with a 1:1 roping system, the self-weight m of the main rope rope , the car self-weight m car , the self-weight m of the control cable cable , the terminal spring stiffness k s , the main rope spring stiffness k r , and the number N of main ropes, the equivalent mass M of the elevator and the equivalent stiffness K of the spring can be decomposed as in the following equations (2) and (3), respectively. [Formula] [Formula]

[0023] The self-weight m of the main rope rope , the self-weight m of the control cable cable , and the main rope spring stiffness k r can each be expressed as the following equations (4) to (6) using the length x of the main rope from the car ceiling to the suspension point r , the lifting stroke TR, the linear density ρ of the main rope rope , the area density ρ of the control cable of the main rope cable , the cross-sectional area S of the main rope r , and the Young's modulus E of the main rope r , as shown in the following equations (4) to (6). [Formula]

number

number

[0024] The number of main ropes N is stored in the first acquisition means 10 as a current equipment parameter. By substituting equations (2) to (6) into equation (1), equation (1) becomes the natural frequency f n This results in an equation consisting only of the current equipment parameters. Therefore, for example, the in-car load capacity (i.e., the car's own weight m) car ), measure vibration data while changing multiple conditions such as cage position (or rope length), and substitute the results for each condition into equation (1). By solving these simultaneously, the weight of the main rope m used in equations (2) to (6) can be obtained. rope , the weight of the control cable m cable , main rope spring stiffness k r terminal spring stiffness k s , the linear density of the main cord ρ rope , surface density ρ of the control cable of the main cable cable , cross-sectional area S of the main rope r , and the Young's modulus E of the main cord r Current device parameters such as these can be obtained. The obtained current device parameters are stored in the first acquisition means 10.

[0025] The second acquisition method 20 stores new equipment parameters related to the weight and rigidity associated with the vibrations mentioned above for each replacement equipment linked to the renewal menu.

[0026] Figure 2 shows an example of a renewal design using a design means. The example in Figure 2 is an example of a design performed based on equipment parameters related to vibration. The design means 30 can perform a renewal design to reduce the vibration of the new elevator. In this case, the design means 30 obtains the current equipment parameters related to vibration from the first acquisition means 10. It also obtains the new equipment parameters for replacement equipment from the second acquisition means 20 according to the renewal menu.

[0027] The design means 30 uses the acquired current equipment parameters and new equipment parameters to calculate the vibration characteristics of a new elevator model combining the old and new equipment according to the renewal menu, based on the simulation results of car vibration. If no car vibration occurs, or if the vibration is within an acceptable range, the equipment configuration according to the renewal menu is output as the design of the new elevator.

[0028] On the other hand, if it is predicted that car vibrations exceeding the permissible range will occur, the design means 30 will be used to consider changing the configuration to one that prevents car vibrations from occurring. To suppress the car vibrations of the new elevator, one method is to shift the excitation frequency and the natural frequency of the new elevator in a direction away from each other, as shown in Figure 2.

[0029] Methods for shifting the excitation frequency include, for example, changing the type of rope or the diameter of the pulley so that the period of disturbance caused by unevenness in the rope or slight eccentricity of the pulley, which are the source of the excitation, shifts from the natural frequency. Alternatively, changing the control method to alter the elevator speed and thus change the period of the excitation frequency is also effective. Methods for shifting the natural frequency include changing the car mass, which is related to the weight of the system, or changing the rope type or the stiffness of the end springs, which are related to the stiffness of the system.

[0030] The design means 30 further calculates the effects of these changes using a model and outputs the results. The designer can then design the new elevator while reviewing these calculation results.

[0031] Furthermore, the design means 30 can also estimate the optimal renewal timing from the history of changes in vibration characteristics before and after renewal. Specifically, before renewal, as shown in Figure 2, the design means 30 predicts future changes in vibration characteristics from the history of actual machine data and current equipment parameters accumulated so far, calculates an appropriate renewal timing from the predicted changes in vibration characteristics, and outputs it. After renewal, the design means 30 creates and outputs a menu of various renewal timings. Designers can refer to the costs of each menu and design and propose elevator renewals.

[0032] 2. Elevator noise System 100 can propose an elevator renewal design using data on elevator noise before and after renewal. In this case, maintenance personnel or investigators acquire noise data as actual machine data at times such as during maintenance inspections or on-site surveys. However, the system may also be configured to allow for continuous measurement of noise data. Noise data is measured by measuring instruments such as sound level meters brought in from outside, or by sensors or equipment installed in the elevator. Sensors for measuring noise are installed around each component of the elevator, such as around the elevator car or in the machine room. The detected noise data is stored in the first acquisition means 10.

[0033] The first acquisition means 10 analyzes the noise data, for example using FFT (Fast Fourier Transform), to calculate the spectral distribution with respect to frequency as the noise characteristics of the equipment on which each sensor is installed. The first acquisition means 10 stores these analysis results as the current equipment parameters of each component.

[0034] The second acquisition method 20 stores noise-related information, such as the dimensions of each piece of equipment, as new equipment parameters for each replacement piece of equipment linked to the renewal menu.

[0035] The design means 30 obtains current equipment parameters related to the noise characteristics of equipment to be retained during the renewal from the first acquisition means 10, and obtains new equipment parameters for replacement equipment according to the renewal menu from the second acquisition means 20. The design means 30 creates an acoustic analysis FEM model for when the elevator is assembled according to the renewal menu, analyzes the noise of the new elevator using the acquired current equipment parameters and new equipment parameters, and outputs the analysis results.

[0036] Furthermore, the design means 30 adjusts the layout, dimensions, or noise source location based on the analysis results to minimize noise, and outputs the adjustment results and the analysis results of the noise of the adjusted new elevator. Alternatively, the design means 30 modifies the control method, such as adjusting the elevator speed to reduce noise, and outputs the modified control method. The designer can then determine the design of the new elevator based on these adjustment results and the results of the control method modification.

[0037] 3.Remaining lifespan System 100 can predict the remaining lifespan before and after renewal and propose an elevator renewal design based on the prediction results. Specifically, in this case, maintenance personnel or inspectors acquire actual machine data that serves as an indicator of the degree of deterioration (i.e., remaining lifespan rate) of the elevator at times such as during maintenance inspections or on-site surveys. The combination of each sensor used to measure the degree of deterioration and the actual machine data acquired is as follows, for example.

[0038] (i) An AE sensor (Acoustic Emission Sensor) is used to acquire elastic waves generated in conjunction with deformation or fracture as actual equipment data. Figure 3 shows an example of the output of the AE sensor. The elastic wave data detected by the AE sensor is stored in the first acquisition means 10. The equipment targeted for elastic wave detection by the AE sensor is, for example, all equipment subjected to mechanical loads, such as cages, main ropes, and cables.

[0039] (b) A strain sensor is used to acquire actual data of the strain that occurs when a mechanical load is applied to the equipment. Figure 4 shows an example of the output of the strain sensor. The strain detected by the strain sensor is stored in the first acquisition means 10. The equipment that is subject to strain detection by the strain sensor is, for example, all equipment that is subjected to mechanical loads, such as cages, main ropes, and cables.

[0040] (h) The tilt of the equipment is acquired as actual data using an angle sensor. Figure 5 shows an example of the output of the angle sensor. The tilt of each piece of equipment detected by the angle sensor is stored in the first acquisition means 10. Examples of equipment that can be detected for tilt by the angle sensor include the elevator car and the hoisting machine. The angle sensor may be a sensor that is already installed in the elevator, or it may be a sensor brought in from outside for data acquisition such as maintenance.

[0041] (ii) The temperature of the equipment or its surroundings is acquired as actual equipment data by a temperature sensor. All components may be subject to detection. The temperature data detected by the temperature sensor is stored in the first acquisition means 10.

[0042] Figure 6 shows an example of the remaining lifespan of the current equipment estimated from acquired actual equipment data. As shown in Figure 6, the progression and signs of equipment deterioration are predicted from each of the actual equipment data (a) to (d), and the remaining lifespan, which is the predicted remaining lifespan value, is estimated. However, the remaining lifespan may also be estimated by looking at the overall trend of the actual equipment data. Note that temperature data itself does not estimate the degree of equipment deterioration. Temperature data can be used as material for considering deterioration predictions estimated from the signals obtained in (a) to (c) above. For example, if the equipment is made of a material that deteriorates faster at higher temperatures, multiple prediction patterns can be considered depending on the temperature. In this way, based on the deterioration characteristics of the equipment, the current equipment parameters appropriate to the current situation are estimated according to the temperature sensor signal. The estimated remaining lifespan is stored in the first acquisition means 10 as the current equipment parameter.

[0043] The second acquisition method 20 stores the lifespan of the replacement equipment linked to the renewal menu as a new equipment parameter.

[0044] The design means 30 acquires the remaining lifespan percentage of the existing equipment to be retained during renewal from the first acquisition means 10, and information on the lifespan of the replacement equipment from the second acquisition means 20. Based on the acquired data, the design means 30 calculates the maintenance and renewal timing before and after renewal, and outputs the calculation result. Figures 7 and 8 are diagrams illustrating the outline of the renewal timing design method by the design means.

[0045] The design means 30 estimates the change in the remaining lifespan of each piece of equipment before renewal, based on the trend of the remaining lifespan of each piece of equipment. Then, as shown in Figure 7, it designs the maintenance and renewal timing so that the remaining lifespan of the current equipment (for example, equipment A to C in Figure 7) is unified at the time of renewal. The designed renewal timing is output. This allows equipment with low remaining lifespans to be replaced simultaneously in a single renewal, leading to a reduction in the number of maintenance checks.

[0046] Furthermore, in designing the new elevator, the design means 30, as shown in Figure 8, selects which equipment to keep or replace according to the remaining lifespan rate so that the entire system (for example, equipment A and equipment B in Figure 8) has the shortest remaining lifespan at the next renewal, and designs the components of the new elevator. Alternatively, it designs the maintenance timing and renewal timing of the new elevator so that the remaining lifespan rates of the components constituting the new elevator are unified at the next renewal. The designed components of the new elevator or the renewal timing are output. This makes it possible to change equipment with low remaining lifespan rates simultaneously in a single renewal, leading to a reduction in the number of maintenance checks.

[0047] As described above, according to the system 100 of this embodiment, even when new and old components are mixed during a renewal, the equipment configuration, control method, and renewal timing can be appropriately designed by conducting a model-based study using the equipment parameters before and after the renewal.

[0048] The description of System 100 explains how it can be used to design a new elevator by acquiring current equipment parameters related to vibration, noise, and remaining lifespan. However, System 100 does not have all of these design functions; it is sufficient if it can perform the renewal design using current equipment parameters related to at least one of vibration, noise, and remaining lifespan. Furthermore, the description of System 100 explains how it can be used to design the equipment configuration, control method, and renewal timing of a new elevator. However, it is not limited to this, and System 100 may be configured to design one or more of the equipment configuration, control method, and renewal timing of a new elevator.

[0049] Furthermore, the functions realized by System 100 may be implemented using circuits including general-purpose processors, application-specific processors, integrated circuits, ASICs (Application Specific Integrated Circuits), CPUs (Central Processing Units), conventional circuits, or combinations thereof, programmed to realize the described functions. A processor is considered a circuit because it includes transistors and other circuits. A processor may execute a program stored in memory. Also, circuits, units, and means in the embodiments are hardware programmed to realize or execute the described functions. Such hardware may be any hardware disclosed in the embodiments, or any hardware known to be programmed to realize or execute the described functions. If the hardware is a processor that can be considered a type of circuit, such circuit, means, or unit is a combination of hardware and software used to constitute such hardware and / or processor.

[0050] Embodiment 2. Figure 9 is a block diagram showing the functional configuration of the elevator design system according to Embodiment 2. Below, we will mainly describe the parts of System 200 in Embodiment 2 that differ from System 100 in Embodiment 1, and omit the description of parts common to System 100 in Embodiment 1. System 200 in this embodiment has the same configuration as System 100 in Figure 1, except that it includes a third acquisition means 51 for storing system information.

[0051] The third acquisition means 51 stores system information for each model of various existing elevators. System information refers to all the equipment parameters of the equipment that make up the elevator that are used in the model-based study.

[0052] The design means 52 extracts elevator system information that is closest to the external specifications of the current elevator from the third acquisition means 51, current equipment parameters from the first acquisition means 10, and new equipment parameters from the second acquisition means 20, and predicts the elevator characteristics of the new elevator based on a model.

[0053] Here, external specifications refer to things like the elevator's load capacity, lifting and lowering process, car dimensions, and speed. If this external specification information is unknown, it can be confirmed by acquiring data using sensors and measuring instruments during on-site surveys.

[0054] The design means 52 creates a provisional model using system information extracted from the third acquisition means 51. The design means 52 corrects the provisional model based on the information of current equipment parameters extracted from the first acquisition means 10. This improves the accuracy of the model. Information on new components, such as new equipment parameters for replacement equipment extracted from the second acquisition means 20, is applied to the corrected model, the design items described in Embodiment 1 (i.e., vibration, acoustics, and remaining life rate) are considered, and a design for the new elevator is proposed.

[0055] Although preferred embodiments have been described in detail above, the invention is not limited to the embodiments described above, and various modifications and substitutions can be made to the embodiments described above without departing from the scope of the claims.

[0056] The various aspects of this disclosure are summarized below as an appendix. (Note 1) A first acquisition means for acquiring current equipment parameters that indicate the system characteristics of the current elevator or the characteristics of the equipment that constitutes the current elevator, from data detected regarding the status of the current elevator which is the elevator to be renewed, A second acquisition method for obtaining new equipment parameters that indicate the characteristics of the new equipment, which is replacement equipment linked to the renewal menu, A design means that uses the parameters of the existing equipment and the parameters of the new equipment to predict the elevator characteristics of the new elevator, which is the refurbished elevator, on a model basis, and designs at least one of the following based on the predicted elevator characteristics: the equipment configuration of the new elevator, the control method of the new elevator, and the timing of the refurbishment of the existing elevator or the new elevator. An elevator design system equipped with [feature / feature]. (Note 2) The design means further comprises a third acquisition means for acquiring system information corresponding to the elevator model, The design means is Using the system information obtained by the third acquisition means, and the system information corresponding to the external specifications of the current elevator, the elevator characteristics are predicted on a model basis. The elevator design system described in Appendix 1. (Note 3) The first acquisition means acquires the current equipment parameters based on the data relating to the vibration of the elevator car, The design means estimates the natural frequency and excitation frequency as elevator characteristics based on the simulation results of car vibration for the new elevator, and designs the equipment configuration or control method so that the natural frequency and the excitation frequency move in a direction away from each other. The elevator design system described in Appendix 1 or 2. (Note 4) The first acquisition means acquires the current equipment parameters based on the data relating to the vibration of the elevator car, The design means designs the renewal timing of the current elevator or the new elevator based on the history of changes in vibration characteristics predicted from the simulation results of car vibration for the new elevator. An elevator design system as described in any one of the appendices 1 to 3. (Note 5) The first acquisition means acquires the predicted remaining lifespan of each of the current devices as the current device parameters, The second acquisition means acquires the lifespan of each of the new devices as the new device parameter, The design means uses the current equipment parameters and the new equipment parameters to design the equipment configuration, or the renewal timing of the current elevator or the new elevator, such that the sum of the remaining lifespans of the equipment constituting the new elevator is reduced. An elevator design system as described in any one of the appendices 1 to 4. (Note 6) The first acquisition means acquires the current equipment parameters based on the data relating to the noise of the current elevator, The design means predicts the noise characteristics of the new elevator as the elevator characteristics using the current equipment parameters and the new equipment parameters, and designs the equipment configuration or control method based on the elevator characteristics so that the noise of the new elevator is reduced. An elevator design system as described in any one of the appendices 1 to 5. [Explanation of Symbols]

[0057] 10 First acquisition means, 20 Second acquisition means, 30 Design means, 51 Third acquisition means, 52 Design means, 100, 200 Elevator design system

Claims

1. A first acquisition means for acquiring current equipment parameters that indicate the system characteristics of the current elevator or the characteristics of the equipment that constitutes the current elevator, from data detected regarding the status of the current elevator which is the elevator to be renewed, A second acquisition method for obtaining new equipment parameters that indicate the characteristics of the new equipment, which is replacement equipment linked to the renewal menu, A design means that uses the parameters of the existing equipment and the parameters of the new equipment to predict the elevator characteristics of the new elevator, which is the refurbished elevator, on a model basis, and designs at least one of the following based on the predicted elevator characteristics: the equipment configuration of the new elevator, the control method of the new elevator, and the refurbishment timing of the existing elevator or the new elevator. An elevator design system equipped with [feature / feature].

2. The design means further comprises a third acquisition means for acquiring system information corresponding to the elevator model, The design means is Using the system information obtained by the third acquisition means, and the system information corresponding to the external specifications of the current elevator, the elevator characteristics are predicted on a model basis. The elevator design system according to claim 1.

3. The first acquisition means acquires the current equipment parameters based on the data relating to the vibration of the elevator car, The design means estimates the natural frequency and excitation frequency as elevator characteristics based on the simulation results of car vibration for the new elevator, and designs the equipment configuration or control method so that the natural frequency and the excitation frequency move in a direction away from each other. The elevator design system according to claim 1 or 2.

4. The first acquisition means acquires the current equipment parameters based on the data relating to the vibration of the elevator car, The design means designs the renewal timing of the current elevator or the new elevator based on the history of changes in vibration characteristics predicted from the simulation results of car vibration for the new elevator. The elevator design system according to claim 1 or 2.

5. The first acquisition means acquires the predicted remaining lifespan of each of the current devices as the current device parameters, The second acquisition means acquires the lifespan of each of the new devices as the new device parameter, The design means uses the current equipment parameters and the new equipment parameters to design the equipment configuration, or the renewal timing of the current elevator or the new elevator, such that the sum of the remaining lifespans of the equipment constituting the new elevator is reduced. The elevator design system according to claim 1 or 2.

6. The first acquisition means acquires the current equipment parameters based on the data relating to the noise of the current elevator, The design means predicts the noise characteristics of the new elevator as the elevator characteristics using the current equipment parameters and the new equipment parameters, and designs the equipment configuration or control method based on the elevator characteristics so that the noise of the new elevator is reduced. The elevator design system according to claim 1 or 2.

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