elevator system

Abstract

To more accurately estimate a remaining life of a component using an organic material for at least a part thereof.SOLUTION: An elevator system 100 according to the present invention comprises: an elevator 110 having a component at least partially made of an organic material; and a first sensor that detects environment information including at least a temperature. The elevator system 100 further comprises a deterioration estimation unit 120 that estimates a remaining life of the component on the basis of the environment information of a prescribed period detected by the first sensor.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Traditionally, elevator components related to elevator operation, such as the main ropes that suspend the car, the sheaves that generate driving force, and the pulleys that transmit power received from the belt, have often been made with steel surfaces. Components made of steel have been less susceptible to deterioration due to the environment in which they are installed. However, advances in technology to improve the strength of organic materials such as resins have led to the use of organic materials such as resins in elevator components related to elevator operation. For example, to reduce the torque required to drive an elevator, coating the main ropes with resin improves the flexibility of the main ropes wound around the sheaves, allowing the sheaves to be made smaller in diameter.

[0003] However, as the resin deteriorates, its hardness increases, reducing the coefficient of friction between the main rope and the sheave. This coefficient of friction also varies depending on factors such as temperature and humidity. Patent Document 1 discloses a technique for determining the deterioration of ropes and sheaves with greater accuracy by eliminating the effects of temperature and humidity from the measured car speed when determining the deterioration of ropes and sheaves from changes in car speed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-156127 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 describes determining the deterioration of ropes and sheaves by eliminating the effects of temperature and humidity from the car speed. Generally, resins deteriorate through hydrolysis, a decomposition reaction caused by changes in water content and humidity in the air over time. Therefore, there is a problem in that the progress of hydrolysis-related deterioration and remaining life expectancy cannot be determined and estimated based on the temperature and humidity at the time of diagnosis alone. Furthermore, when glass is installed in elevator shafts, resin parts are more susceptible to deterioration due to ultraviolet light. Furthermore, when designing parts made of organic materials such as resin, deterioration due to environmental factors such as temperature, humidity, and ultraviolet light is taken into account. However, without considering changes in the progress of deterioration due to actual environmental conditions, part replacement will be planned according to the design life even when the resin parts are not deteriorating. While such unnecessary part replacement does not pose a safety risk to elevators, it is undesirable from the perspective of reducing environmental impact.

[0006] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to more accurately estimate the remaining life of a component that uses an organic material at least in part. [Means for solving the problem]

[0007] In order to solve the above problems, the elevator system of the present invention is an elevator having components at least partially made of organic materials, and an elevator system that provides environmental information including at least temperature. , the first detection period is longer than the second detection period A first sensor that detects a second sensor that detects a physical quantity caused by the elevator's travel at a second detection period; The elevator system of the present invention also includes a deterioration estimation unit that estimates the remaining life of a component based on environmental information detected by the first sensor for a predetermined period of time. The elevator system of the present invention also includes an elevator having components at least partially made of organic materials, a first sensor that detects environmental information including at least temperature, and a deterioration estimation unit that estimates the remaining life of the components based on environmental information for a predetermined period detected by the first sensor, the environmental information including humidity information. The elevator system of the present invention also includes an elevator having components at least partially made of organic materials, a first sensor that detects environmental information including at least temperature, and a deterioration estimation unit that estimates the remaining life of the components based on environmental information detected by the first sensor for a predetermined period of time, the environmental information including ultraviolet light information. [Effects of the Invention]

[0008] According to the present invention having the above configuration, it is possible to estimate with high accuracy the remaining life of a component that uses an organic material at least in part. [Brief explanation of the drawings]

[0009] [Figure 1] 1A and 1B are diagrams illustrating deterioration of a resin part due to hydrolysis. [Figure 2] 1 is a diagram showing the configuration of an elevator system according to a first embodiment of the present invention. [Figure 3] FIG. 2 is a diagram showing a hardware configuration of a sensor information processing unit of the elevator system according to the first embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing an example of time-varying characteristics of recorded acceleration and speed calculated from the acceleration in the elevator system according to the first embodiment of the present invention. [Figure 5] FIG. 2 is a diagram for explaining the deterioration estimation process in the deterioration estimation unit of the elevator system according to the first embodiment of the present invention. [Figure 6] FIG. 2 is a diagram for explaining remaining life estimation taking into account degradation due to hydrolysis in the elevator system according to the first embodiment of the present invention. [Figure 7] FIG. 2 is a diagram for explaining remaining life estimation taking into account deterioration due to ultraviolet radiation in the elevator system according to the first embodiment of the present invention. [Figure 8] FIG. 2 is a diagram showing a procedure of processing related to recording and transmission of detection information from various sensors, which is performed in the elevator system according to the first embodiment of the present invention. [Figure 9] FIG. 4 is a diagram showing the configuration of an elevator system according to a second embodiment of the present invention. [Figure 10] FIG. 10 is a diagram for explaining remaining life estimation according to a design life updated by aging deterioration evaluation in an elevator system according to a second embodiment of the present invention. [Figure 11] FIG. 10 is a diagram showing the configuration of an elevator system according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] Before describing the elevator system according to the first embodiment of the present invention, we will first explain the deterioration of resin parts due to hydrolysis. Generally, when stress is applied to parts made of organic materials such as resin over a long period of time, the parts gradually deteriorate due to plastic deformation, leading to fracture - a phenomenon known as creep. The rate of deterioration relative to the duration of stress application differs depending on the material, but even for the same material, it varies depending on the environmental conditions (temperature, humidity, etc.). Figure 1 is a diagram illustrating the deterioration of resin parts due to hydrolysis.

[0011] Figure 1 shows the time-varying characteristics of the allowable stress of a plastic part. The allowable stress of a plastic part is the maximum stress that the plastic part can tolerate. Curve C1 shows the time-varying characteristics of the allowable stress of a plastic part under certain temperature and humidity conditions. Curve C2 shows the time-varying characteristics of the allowable stress of a plastic part under conditions with a higher temperature and humidity than those of Curve C1. Curve C3 shows the time-varying characteristics of the allowable stress of a plastic part under conditions with an even higher temperature and humidity than those of Curve C2. Line Lp, drawn with a dashed dotted line, indicates the minimum stress required for elevator operation for the plastic part. If the allowable stress of a plastic part falls below this minimum stress, the plastic part becomes unusable and must be replaced. Therefore, the value (time) on the horizontal axis at the point where each of Curves C1 to C3 intersects with Line Lp represents the lifespan of the plastic part under each of the temperature and humidity conditions of Curves C1 to C3. That is, times Lt1 to Lt3 represent the lifespan of the resin parts under the temperature and humidity conditions of curves C1 to C3, respectively.

[0012] As shown in Figure 1, when the temperature and humidity change to higher and higher temperatures, that is, when the temperature and humidity change from curve C1 to curve C2 and then curve C3, the lifespan of the plastic parts changes from a long lifespan (Lt1) to a short lifespan (Lt2, Lt3).

[0013] Furthermore, resin parts become hard when exposed to ultraviolet light, which reduces the allowable stress, and this reduces the lifespan of the resin parts.

[0014] As described above, the rate of deterioration of resin parts changes due to hydrolysis, ultraviolet radiation, etc. Therefore, when determining the timing to replace a resin part, it is necessary to estimate the remaining lifespan taking into account the deterioration of the resin part due to hydrolysis and ultraviolet radiation in order to avoid unnecessary part replacement.

[0015] First Embodiment Next, an elevator system according to a first embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following example.

[0016] [Elevator system configuration] Fig. 2 is a diagram showing the configuration of an elevator system according to a first embodiment of the present invention. As shown in Fig. 2, the elevator system 100 includes an elevator 110, a deterioration estimation unit 120, and a communication control unit 130. The deterioration estimation unit 120 is connected to the elevator 110 via the communication control unit 130 and a network so as to be able to send and receive information data.

[0017] (1) Elevator configuration The elevator 110 has a 2:1 roping configuration and includes a car 1, a pulley 2, a hoist 3, a rope 4, a counterweight 5, a pulley 6, and a sensor system 7. FIG. 2 shows a diagram illustrating the installation location of the sensor system 7 alongside a functional configuration diagram of the sensor system 7. The pulley 2 is connected to and installed on the bottom of the car 1, the pulley 6 is connected to and installed on the top of the counterweight 5, and the sensor system 7 is installed on the top of the car 1. The car 1, the counterweight 5, and the pulley 6 are suspended by ropes 4 on both sides of the hoist 3. The hoist 3 is rotated by a motor (not shown) and causes the car 1 and the counterweight 5 to travel in opposite directions via the ropes 4 hung around the hoist 3. Here, it is assumed that the pulley 2, connected to and installed on the bottom of the car 1, is a plastic part, and the pulley 2 is the subject of remaining life estimation. However, the present invention is not limited to this, and any part that can be made of an organic material such as resin may be the subject of remaining life estimation. Furthermore, in this embodiment, resin is described as an example of an organic material, but the present invention is not limited to this, and any organic material that can be used to make elevator parts may be used. Furthermore, in this embodiment, an elevator with a 2:1 roping configuration is described, but the present invention is not limited to this, and an elevator with any configuration, such as a 1:1 roping configuration, may be used.

[0018] As shown in FIG. 2, the sensor system 7 includes an acceleration sensor 71, a temperature and humidity sensor 72, an ultraviolet sensor 73, and a sensor information processing unit 74. The acceleration sensor 71, the temperature and humidity sensor 72, and the ultraviolet sensor 73 are each communicably connected to the sensor information processing unit 74. Here, a sensor that detects environmental information is referred to as a first sensor. For example, the temperature and humidity sensor 72 and the ultraviolet sensor 73 are used as examples of the first sensor. Furthermore, a sensor that detects a physical quantity resulting from the travel of the car 1 is referred to as a second sensor. For example, the acceleration sensor 71 is used as an example of the second sensor.

[0019] The acceleration sensor 71 is configured, for example, by a 1-axis acceleration sensor or a 3-axis acceleration sensor, and detects the acceleration of the car 1 at a set predetermined detection period (for example, 5 ms). The detected acceleration data of the car 1 is captured by the sensor information processing unit 74.

[0020] The temperature and humidity sensor 72 is an integrated temperature sensor and humidity sensor, and detects the ambient temperature and humidity at a predetermined detection interval. The detected temperature and humidity data is acquired by the sensor information processing unit 74 at the set temperature and humidity acquisition timing. The temperature sensor and humidity sensor may not be integrated, but may be provided separately. Furthermore, because temperature and humidity change over time more slowly than changes in car position while the train is running, the temperature and humidity detection interval is set longer than the acceleration detection interval. For example, for an acceleration detection interval of 5 ms, temperature and humidity data is detected and recorded every hour. In other words, the detection interval of the first sensor (first detection interval) is set longer than the detection interval of the second sensor (second detection interval).

[0021] In the example shown in FIG. 2, in order to accurately estimate the progress of degradation of the resin parts due to hydrolysis, the temperature and humidity sensor 72 is installed on the car 1, which changes position along with the resin pulley 2 while the train is running. Here, the sensor is installed on the top surface of the car 1, taking into consideration ease of installation. The sensor information processor 74 can also estimate the temperature and humidity around the resin parts using, for example, climate data from the Japan Meteorological Agency. However, when the sensor information processor 74 estimates the temperature and humidity around the resin parts using climate data from the Japan Meteorological Agency, the accuracy of the estimation of the progress of degradation due to hydrolysis may decrease because the temperature and humidity inside the hoistway where the resin parts are placed differ from the outdoor temperature and humidity.

[0022] The ultraviolet sensor 73 detects the ultraviolet intensity in the elevator shaft of the car 1 at a predetermined detection cycle. The detected ultraviolet intensity data is captured by the sensor information processing unit 74 at the set ultraviolet intensity capture timing. Note that the ultraviolet intensity does not change rapidly over time, just like the temperature and humidity changes over time, but the car 1 may be in the shade depending on its position. Therefore, to be able to respond to changes in the position of the car 1, detection is performed, for example, every second. The ultraviolet intensity detected every second is accumulated, for example, for one hour, and the accumulated ultraviolet intensity is recorded every hour as the amount of irradiation, along with the temperature and humidity data.

[0023] Furthermore, while many elevator shafts are enclosed by walls inside the building and are not exposed to sunlight, there are cases where the shafts of observation elevators and the like are glass-lined. In such cases, there are concerns that the resin may deteriorate due to ultraviolet rays, so an ultraviolet sensor 73 is also attached to the sensor system 7. Note that, since it is thought that the ultraviolet sensor 73 will be needed in few cases, it is also possible to design the sensor system 7 so that it is easy to attach the ultraviolet sensor 73, and to attach the ultraviolet sensor 73 only when necessary.

[0024] The sensor information processing unit 74 has a loading determination unit 741, a traveling determination unit 742, a recording necessity determination unit 743, and a communication control unit 744. The sensor information processing unit 74 receives acceleration data from the acceleration sensor 71, and temperature and humidity data and ultraviolet intensity data, which are environmental information, from the temperature and humidity sensor 72 and the ultraviolet sensor 73. The sensor information processing unit 74 also records the received acceleration data and environmental information, and performs a loading determination process, a traveling determination process, and a recording necessity determination process, which will be described later, based on this information. The sensor information processing unit 74 also transmits the recorded acceleration data, temperature and humidity data, and ultraviolet intensity data to the deterioration estimation unit 120 via the network and communication control unit 130 at a preset timing for transmitting recorded data.

[0025] If cracks or deformations occur on the groove surface due to deterioration of the pulley 2, eccentricity occurs when the pulley 2 rotates. This eccentricity appears as vibrations in the acceleration frequency components of the rotation speed of the pulley 2 or multiples of that rotation speed. The rotation speed of the pulley 2 is determined by the speed of the car 1. Therefore, deterioration of the pulley 2 can be detected by examining changes over time in the acceleration frequency components while the car 1 is traveling at a constant rated speed. The rated speed of the car 1, i.e., the rated speed of the elevator 110, is the maximum speed at which the car can ascend with a live load acting on it.

[0026] Furthermore, the degree to which vibrations caused by deterioration of the pulley 2 are transmitted to the acceleration sensor 71 mounted on the car 1 varies depending on the transmission characteristics determined by the system consisting of the rope 4, car 1, and counterweight 5. These transmission characteristics change depending on the loading state of the car 1. Therefore, in order to detect vibrations in the acceleration frequency components of the car 1, it is desirable to compare the acceleration frequency components over time under the same loading conditions. Also, to ensure the same loading conditions, it is desirable to compare the acceleration frequency components when the car 1 is unloaded. For this purpose, the sensor system 7 is provided with a loading determination unit 741.

[0027] The loading determination unit 741 determines whether or not a user is entering or exiting the car 1 from the acceleration detected by the acceleration sensor 71, thereby determining whether or not the car 1 is loaded. Specifically, the acceleration of the car 1 is 0 when the car 1 is stopped, and when a user enters or leaves the car 1, the acceleration in the running direction of the car 1, i.e., the vertical direction, changes (vibrates). The loading determination unit 741 detects the vibration of the acceleration while the car 1 is stopped, and if the vibration of the acceleration does not exceed a predetermined threshold (for example, a threshold set for the effective value or root mean square of the acceleration) and the car 1 enters a running state, it determines that the car 1 is in an unloaded state. On the other hand, if the vibration of the acceleration while the car 1 is stopped exceeds the predetermined threshold, it is considered that a user has entered or exited the car 1, and therefore it determines that the car 1 is not in an unloaded state. Furthermore, the loading determination unit 741 outputs information about the acceleration data when the car 1 is in an unloaded state to the record necessity determination unit 743 as a result of whether or not the car is loaded.

[0028] It should be noted that the load determination process is not limited to analysis based only on the acceleration in the traveling direction of the car 1. For example, when passengers enter or exit the car 1, the car 1 also vibrates in the horizontal direction that intersects with the traveling direction of the car 1. Therefore, the acceleration sensor 71 may also detect the acceleration of the horizontal vibration of the car 1, and the load determination unit 741 may perform the load determination process based on the vibration of the acceleration in the traveling direction and the horizontal direction. In this way, the accuracy of the load determination process by the load determination unit 741 can be improved. It should be noted that when detecting only the acceleration in the traveling direction of the car 1, a uniaxial acceleration sensor is used as the acceleration sensor 71. On the other hand, when detecting the acceleration in the traveling direction and the horizontal direction of the car 1, a 3-axis acceleration sensor is used as the acceleration sensor 71.

[0029] The running determination unit 742 integrates the acceleration in the running direction of car 1 detected by the acceleration sensor 71 to calculate the speed and determine the running state of car 1. Specifically, the running determination unit 742 determines that car 1 is stopped when the speed calculated from the acceleration is 0 or equal to or less than a predetermined value. On the other hand, the running determination unit 742 determines that car 1 is running when the speed calculated from the acceleration exceeds a predetermined value. In addition, the running determination unit 742 outputs information on the acceleration data when car 1 is running and when it is stopped to the record necessity determination unit 743 as a running determination result.

[0030] The recording necessity determination unit 743 determines whether or not it is necessary to record the acceleration data detected by the acceleration sensor 71 based on the load presence / absence determination result input from the load determination unit 741. Based on the load determination process result, the recording necessity determination unit 743 determines that if the acceleration data is in an unloaded state, it needs to be recorded, and if the acceleration data is in a state other than an unloaded state, it does not need to be recorded. Based on the determination result of the elevator 110's running state determined by the running determination unit 742, acceleration data while the car 1 is running and acceleration data for a predetermined period while the car 1 is stopped before, during, and after running (see FIG. 4, described later) are extracted from the unloaded state acceleration data. The extracted acceleration data is then recorded in the memory unit 74d of the sensor information processing unit 74 (see FIG. 3, described later). In this way, the recording necessity determination unit 743 selects whether or not to record acceleration data and records only acceleration data that needs to be recorded, thereby reducing the capacity required for data recording. This also reduces the amount of data to be processed by the deterioration estimation unit 120.

[0031] The communication control unit 744 establishes a connection with the communication control unit 130 and controls the transmission of the recorded acceleration data, temperature and humidity data, and ultraviolet intensity data to the deterioration estimation unit 120 via the network and the communication control unit 130 at a preset transmission timing. The acceleration data, temperature and humidity data, and ultraviolet intensity data are examples of information data transmitted and received between the deterioration estimation unit 120 and the elevator 110.

[0032] FIG. 2 describes the functional configuration of the sensor information processing unit 74. The hardware configuration of the sensor information processing unit 74 will be described below. FIG. 3 is a diagram showing the hardware configuration of the sensor information processing unit 74. The sensor information processing unit 74 is an information processing device such as a microcontroller. As shown in FIG. 3, the sensor information processing unit 74 has a CPU (Central Processing Unit) 74a, a ROM (Read Only Memory) 74b, a RAM (Random Access Memory) 74c, a storage unit 74d, and a communication unit 74e.

[0033] The CPU 74a controls the operation of each unit in the sensor information processing unit 74. Specifically, the CPU 74a controls the loading determination process in the loading determination unit 741, the traveling determination process in the traveling determination unit 742, and the recording necessity determination process in the recording necessity determination unit 743. The CPU 74a also controls the transmission process of the recording data in the communication control unit 744.

[0034] The ROM 74b is configured, for example, by a storage medium such as a nonvolatile memory, and stores programs and data that are executed and referenced by the CPU 74a.

[0035] The RAM 74c is configured, for example, by a storage medium such as a volatile memory, and temporarily stores information (data) necessary for each process performed by the CPU 74a.

[0036] The storage unit 74d is configured as a computer-readable, non-transitory storage medium storing programs executed by the CPU 74a, such as a storage device such as an HDD (Hard Disk Drive). The storage unit 74d stores programs and data for the CPU 74a to control various components, such as an OS (Operating System), and controller programs. The storage unit 74d also stores acceleration data, temperature and humidity data, and ultraviolet light intensity data determined by the recording necessity determination unit 743 to require recording. Some of the programs and data stored in the storage unit 74d may be stored in the ROM 74b. The storage unit 74d is not limited to an HDD and may be, for example, a solid state drive (SSD), a compact disc (CD)-ROM, a digital versatile disc (DVD)-ROM, or other storage medium.

[0037] The communication unit 74e is composed of, for example, a NIC (Network Interface Card) or a modem, and establishes a connection with the external deterioration estimation unit 120 and transmits and receives various data to and from the deterioration estimation unit 120 in accordance with instructions from the CPU 74a (communication control unit 744).

[0038] (2) Deterioration estimation unit 120 The deterioration estimation unit 120 can be configured, for example, by an information processing device such as a microcontroller, similar to the sensor information processing unit 74. Furthermore, the deterioration estimation unit 120 may be, for example, a functional unit of a monitoring center (not shown) that monitors the operation status of the elevator 110. In this case, the acceleration data, temperature / humidity data, and ultraviolet light intensity data from the sensor information processing unit 74 can be received via the communication function of the monitoring center, so the communication control unit 130 does not need to be provided.

[0039] The deterioration estimation unit 120 performs a deterioration estimation process and a remaining life estimation process, which will be described later, on the resin pulley 2 based on the acceleration data, temperature and humidity data, and ultraviolet light intensity data received from the sensor information processing unit 74.

[0040] (3) Communication control unit 130 The communication control unit 130 establishes a connection with the sensor information processing unit 74 of the sensor system 7 of the elevator 110, and controls the reception process of acceleration data, temperature and humidity data, and ultraviolet intensity data from the sensor information processing unit 74. The received various data are output to the deterioration estimation unit 120.

[0041] Next, the acceleration data received from the elevator 110, that is, the acceleration data recorded in the sensor information processing unit 74 of the sensor system 7, will be described.

[0042] FIG. 4 shows an example of the time change characteristics of recorded acceleration and speed calculated from the acceleration in the elevator system 100 according to the first embodiment of the present invention. FIG. 4(a) shows the time change characteristics of the recorded acceleration, and FIG. 4(b) shows the time change characteristics of the speed calculated from the recorded acceleration. In this embodiment, the highest frequency for resolving the frequency components of acceleration is set to 100 Hz. Therefore, to resolve the frequency components of acceleration, the detection period of acceleration is set to a period calculated at twice the highest frequency (200 Hz), i.e., 5 ms. The acceleration data shown in FIG. 4(a) is an example of acceleration data detected at a detection period of 5 ms and recorded in the memory unit 74d.

[0043] The horizontal axis of Figure 4(a) represents time in seconds (s), and the vertical axis represents acceleration values ​​in Gals (Gal). In the example shown in Figure 4(a), acceleration data for 20 seconds is shown. The horizontal axis of Figure 4(b) also represents time in seconds (s), and the vertical axis represents velocity values ​​calculated by integrating the acceleration data shown in Figure 4(a) in m / s.

[0044] Between times 0 and t1, car 1 is stopped, so the acceleration shown in FIG. 4(a) remains almost unchanged, and the speed shown in FIG. 4(b) is 0.

[0045] Between times t1 and t2, car 1 is accelerating toward the destination floor, so the acceleration shown in FIG. 4(a) is greater than the value between times 0 and t1, and the speed shown in FIG. 4(b) is increasing.

[0046] Between times t2 and t3, car 1 is traveling at a constant rated speed, so there is no large change in the acceleration shown in FIG. 4(a), and the speed shown in FIG. 4(b) is almost constant.

[0047] Between times t3 and t4, car 1 is decelerating to stop at the destination floor, so the acceleration shown in Figure 4(a) is smaller than the value at times t2 to t3 when traveling at a constant speed, and the speed shown in Figure 4(b) is decreasing.

[0048] From time t4 to t20, car 1 is stopped at the destination floor, so the acceleration shown in FIG. 4(a) remains almost unchanged, and the speed shown in FIG. 4(b) is almost zero.

[0049] [Deterioration estimation processing] Next, the deterioration estimation process in the deterioration estimation unit 120 will be described. FIG. 5 is a diagram for explaining the deterioration estimation process performed by the deterioration estimation unit 120 of the elevator system 100. FIG. 5 shows acceleration frequency components calculated based on the acceleration data of the car 1 in the constant speed traveling state shown in FIG. 4(a), i.e., the acceleration data from time t2 to t3. In FIG. 5, the horizontal axis represents frequency in Hz, and the vertical axis represents amplitude in Gal. Also, in FIG. 5, the solid curve represents the acceleration frequency component during initial use of the elevator 110, i.e., the acceleration frequency component when the pulley 2 is not deteriorated. The dotted curve represents the acceleration frequency component calculated based on the most recently detected acceleration data (see FIG. 4), i.e., the acceleration frequency component when the pulley 2 has deteriorated to some extent. In this embodiment, the frequency component due to deterioration of the pulley 2 is the frequency component at f1 (3 Hz).

[0050] The deterioration estimation unit 120 can estimate the deterioration and deterioration progress of the pulley 2 by comparing the latest acceleration frequency component and the initial acceleration frequency component shown in Fig. 5 and observing the change in amplitude at frequency f1. Specifically, as shown in Fig. 5, the amplitude of the latest acceleration frequency component at frequency f1 is larger than the initial amplitude, so it can be estimated that the pulley 2 is deteriorating. Furthermore, deterioration of the pulley 2 can be detected by calculating the latest acceleration frequency component once a day, for example, and comparing the amplitude of the latest acceleration frequency component at frequency f1 with the previously calculated amplitude to calculate the degree of change in amplitude. It has been found that the larger the difference between the latest amplitude and the initial amplitude at frequency f1, the more advanced the deterioration of the pulley 2.

[0051] Therefore, for example, acceleration data is recorded once a day, and the deterioration estimation unit 120 estimates deterioration based on the daily recorded acceleration data. Then, the deterioration estimation unit 120 can remove the influence of noise by averaging the deterioration estimation results for, for example, one week. Here, the deterioration estimation result of the deterioration estimation unit 120 is calculated as the degree of deterioration of the resin part based on, for example, the average value of the difference between the latest frequency component and the initial frequency component over a predetermined period.

[0052] [Remaining life estimation process] Fig. 6 is a diagram for explaining remaining life estimation taking into account degradation due to hydrolysis in the elevator system 100 of this embodiment. Fig. 6 shows an example in which the design life of a resin pulley 2 is 15 years. The design life is derived from accelerated degradation testing based on environmental conditions that are somewhat severe in practice (harsh conditions), such as high-temperature and high-humidity environmental conditions of a temperature of 35°C and a humidity of 75%, as the reference environmental conditions.

[0053] FIG. 6 shows the time (operating years) change characteristic of the remaining life coefficient of a resin pulley 2. The solid curve L10 shows the time (operating years) change characteristic of the remaining life coefficient corresponding to the design life. The dotted curve L11 shows the time (operating years) change characteristic of the remaining life coefficient corresponding to the estimated life taking into account degradation due to hydrolysis. Note that the remaining life coefficient for both curves L10 and L11 is expressed as the ratio of the remaining life in years of operation to the design life. For example, in curve L10, when the operating years is "0," the remaining life is 15 years (design life - operating years), so the remaining life coefficient is the ratio of the remaining life to the design life (15 / 15), i.e., 1. When the operating years is "15," the remaining life is 0 years (design life - operating years), so the remaining life coefficient is the ratio of the remaining life to the design life (0 / 15), i.e., 0.

[0054] The degradation rate (remaining life change) of resin parts due to hydrolysis can be approximated as a function of the hydrolysis reaction rate (temperature and moisture content) based on the results of accelerated degradation tests. Specifically, the reaction rate at the temperature and moisture content during actual operation is approximated. Then, the temperature and humidity of the design life are used as the reference environment, and the design life calculated in the reference environment is multiplied by the ratio of the hydrolysis reaction rate during actual operation of the elevator 110 to the hydrolysis reaction rate in the reference environment. The design life multiplied by the ratio of the reaction rates during actual operation and under the reference environment is estimated as the degradation rate (remaining life change) in the actual operating environment. For example, the degradation rate (remaining life change) in the actual operating environment for one year (a predetermined period), i.e., the remaining life assuming that the operating environment is repeated, can be estimated based on the change characteristics of the remaining life coefficient from 0 to 1 year.

[0055] In curve L11, the change characteristics of the remaining life coefficient from 0 to 1 year of operation, i.e., the change characteristics of the plotted portion, indicate the progress of deterioration (change in remaining life) of the pulley 2 due to changes over time (hydrolysis) in the actual temperature and humidity environment over the first year (predetermined period). The deterioration estimation unit 120 estimates the progress of deterioration (change in remaining life) in the future, assuming that the actual temperature and humidity environment over this one year will be repeated. The estimated time change characteristics of the remaining life coefficient are the portion of curve L11 where the operating years are 1 to 29 years. As shown in curve L11, the estimated life of the pulley 2 based on the change in remaining life in the actual temperature and humidity environment is 29 years, which is approximately twice the design life (15 years).

[0056] Fig. 7 is a diagram for explaining remaining life estimation taking into account deterioration due to ultraviolet radiation in the elevator system 100 of this embodiment. Fig. 7 shows an example in which the design life of a resin pulley 2 is 15 years, calculated under the same severe conditions as those described in Fig. 6. The horizontal and vertical axes shown in Fig. 7 are the same as those shown in Fig. 6, so repeated explanations will be omitted.

[0057] Figure 7 shows the time (operating years) change characteristic of the remaining life coefficient of a resin pulley 2. The solid curve L10 shows the time (operating years) change characteristic of the remaining life coefficient corresponding to the design life, and since it is similar to the curve L10 shown in Figure 6, a duplicated explanation will be omitted. The dotted curve L12 shows the time (operating years) change characteristic of the remaining life coefficient corresponding to the estimated life taking into account deterioration due to ultraviolet radiation.

[0058] The progress of deterioration (remaining life change) of resin parts due to UV irradiation can be approximated using the reaction rate of UV irradiation as a function of the amount of UV irradiation based on the results of accelerated deterioration tests. Specifically, an approximate calculation of the reaction rate at the amount of UV irradiation during actual operation is performed. Then, the amount of UV irradiation during the design life is set as the reference environment, and the design life calculated in the reference environment is multiplied by the ratio of the reaction rate of the amount of UV irradiation during actual operation of the elevator 110 to the reaction rate of the amount of UV irradiation in the reference environment. The design life multiplied by the ratio of the reaction rate during actual operation to the reaction rate under the reference environment is estimated as the progress of deterioration (remaining life change) in the actual operating environment. For example, the progress of deterioration (remaining life change) in the actual operating environment for one year (a predetermined period), i.e., the remaining life assuming that the environment is repeated, can be estimated based on the change characteristics of the remaining life coefficient from 0 to 1 year of operation.

[0059] In curve L12, the change characteristics of the remaining life coefficient when the number of years of operation is 0 to 1, i.e., the change characteristics of the plotted portion, indicate the progress of deterioration (change in remaining life) of the pulley 2 due to changes over time in the actual environment of ultraviolet irradiation during the first year (predetermined period). The deterioration estimation unit 120 estimates the progress of deterioration (change in remaining life) in the future, assuming that the actual environment of ultraviolet irradiation during this one year period will be repeated. The time (number of years of operation) change characteristics of the estimated remaining life coefficient are the portion of curve L12 when the number of years of operation is 1 to 32. As shown in curve L12, the estimated life of the pulley 2 based on the change in remaining life in the actual environment of ultraviolet irradiation is 32 years, which is more than twice the design life (15 years).

[0060] 6 and 7 illustrate an example in which the remaining life of the resin pulley 2 is estimated based on changes over time in the actual environment over the first year of its life. However, the present invention is not limited to this. For example, the remaining life of the resin pulley 2 may be estimated based on changes over time in the actual environment over the first six months, two years, or the like. Furthermore, for example, predetermined periods may be set for hydrolysis and ultraviolet irradiation, and the remaining life of the pulley 2 may be estimated based on changes over time in the actual environment over each predetermined period. Furthermore, after estimating the remaining life of the pulley 2 based on changes over time in the actual environment over a predetermined period, the remaining life of the pulley 2 may be estimated again, if necessary, for example, several years later based on changes over time in the actual environment over the most recent predetermined period.

[0061] As explained in Figures 6 and 7, the estimated life of the pulley 2 taking into account the changes over time in the actual environment of temperature, humidity, and ultraviolet radiation is longer than the designed life. Using the life estimated taking into account the changes over time in the actual environment, a part replacement plan can be made, and unnecessary part replacement can be avoided.

[0062] [Processing related to recording and transmission of information detected by various sensors] 8 is a diagram showing the procedure of the process related to recording and transmitting the information detected by the various sensors, which is performed in the elevator system 100 of this embodiment. The process described below starts when the sensor system 7 is installed in the elevator 110 and activated.

[0063] First, the sensor information processing unit 74 of the sensor system 7 acquires and sets necessary parameters from the specification parameters of the elevator 110, and performs communication settings with the deterioration estimation unit 120 (step S1). Note that the necessary parameters acquired from the specification parameters of the elevator 110 are, for example, parameters used in various processes in the sensor information processing unit 74, such as the rated speed of the elevator 110.

[0064] Next, the sensor information processing unit 74 acquires acceleration data from the acceleration sensor 71 (step S2).

[0065] Next, the loading determination unit 741 of the sensor information processing unit 74 performs loading determination processing based on the acquired acceleration data (step S3). In this processing, the loading determination unit 741 determines that the car 1 is in an unloaded state if the vibration of the acceleration while the car 1 is stopped does not exceed a predetermined threshold and the car 1 enters a running state. On the other hand, the loading determination unit 741 determines that the car 1 is not in an unloaded state if the vibration of the acceleration while the car 1 is stopped exceeds a predetermined threshold. The determination result of the loading determination unit 741, i.e., information regarding the acceleration data when the car 1 is in an unloaded state, is output to the record necessity determination unit 743.

[0066] Next, the running determination unit 742 of the sensor information processing unit 74 integrates the acquired acceleration data to calculate the speed and determine the running state of car 1 (step S4). In this process, the running determination unit 742 determines that car 1 is stopped if the speed calculated from the acceleration is 0 or less than a predetermined value. On the other hand, the running determination unit 742 determines that car 1 is running if the speed calculated from the acceleration exceeds a predetermined value. The determination result of the running determination unit 742, i.e., information regarding the acceleration data when car 1 is running and when it is stopped, is output to the record necessity determination unit 743.

[0067] Next, the recording necessity determination unit 743 of the sensor information processing unit 74 determines whether or not it is necessary to record the acquired acceleration data (step S5). In this process, based on the result of the loading determination process, the recording necessity determination unit 743 determines that recording is necessary if the acceleration data is in an unloaded state, and determines that recording is not necessary if the acceleration data is in a state other than an unloaded state. In other words, the detection data (acceleration data) of the acceleration sensor 71, which is the second sensor, is recorded depending on whether the elevator 110 is loaded or not. Note that, based on the determination result of the traveling determination unit 742, acceleration data during traveling and acceleration data for predetermined periods while stopped before and after traveling (see FIG. 4) are extracted from the acceleration data in the unloaded state, and these data are stored in the storage unit 74d in the process of step S10 described below.

[0068] Next, the sensor information processing unit 74 determines whether it is the ultraviolet ray data acquisition period (step S6). In this process, if the current time is the ultraviolet ray data acquisition period set in advance, the determination in step S6 is YES, and if it is not the ultraviolet ray data acquisition period, the determination in step S6 is NO.

[0069] In the process of step S6, if the sensor information processing unit 74 determines that the ultraviolet ray data acquisition period has not arrived (NO determination), the sensor information processing unit 74 performs the process of step S8, which will be described later.

[0070] On the other hand, if the sensor information processing unit 74 determines in the processing of step S6 that it is the ultraviolet ray data acquisition period (YES determination), the sensor information processing unit 74 acquires the ultraviolet ray data from the ultraviolet ray sensor 73 (step S7). Note that the detection data (ultraviolet ray data) of the ultraviolet ray sensor 73, which is the first sensor, is recorded regardless of whether the elevator 110 is loaded or not.

[0071] Next, the sensor information processing unit 74 determines whether it is the temperature and humidity data acquisition period (step S8). In this process, if the current time is within the preset temperature and humidity data acquisition period, the determination in step S8 is YES, and if it is not within the temperature and humidity data acquisition period, the determination in step S8 is NO.

[0072] In the process of step S8, if the sensor information processing unit 74 determines that the temperature and humidity data acquisition period has not arrived (if the determination is NO), the sensor information processing unit 74 performs the process of step S10, which will be described later.

[0073] On the other hand, if the sensor information processing unit 74 determines in the processing of step S8 that it is the temperature and humidity data acquisition period (YES determination), the sensor information processing unit 74 acquires the temperature and humidity data from the temperature and humidity sensor 72 (step S9). Note that the detection data (temperature and humidity data) of the temperature and humidity sensor 72, which is the first sensor, is recorded regardless of whether the elevator 110 is loaded or not.

[0074] Next, the sensor information processing unit 74 stores the acceleration data that has been determined to need to be recorded, the acquired ultraviolet light data, and the temperature and humidity data in the storage unit 74d (step S10).

[0075] Next, the sensor information processing unit 74 determines whether or not it is time to transmit the preset recorded data (information data stored in the storage unit 74d) (step S11).

[0076] In the processing of step S11, if the sensor information processing unit 74 determines that it is not time to transmit the recorded data (if the determination is NO), the sensor information processing unit 74 returns to the processing of step S2 and repeatedly executes the processing of steps S2 to S11.

[0077] On the other hand, if the sensor information processing unit 74 determines in step S11 that it is time to transmit the recorded data (YES), the sensor information processing unit 74 transmits the recorded data to the deterioration estimation unit 120 (step S12). In this process, the communication control unit 744 of the sensor information processing unit 74 transmits the recorded acceleration data, ultraviolet light data, and temperature / humidity data to the deterioration estimation unit 120 in accordance with the recorded data transmission instruction from the sensor information processing unit 74. In reality, the elevator's running time, including periods before and after the elevator starts running, is approximately 30 to 60 seconds, so the number of acceleration data samples detected at 5 ms intervals can reach 10,000. Because frequently transmitting large amounts of data places a burden on communication devices such as the communication control unit 744, it is practical to set the transmission timing to, for example, a quiet time period, such as when the elevator 110 is stopped or at night, depending on the operating status of the elevator 110. Furthermore, because the deterioration status of plastic parts does not change significantly in a short period of time, the recorded data may be transmitted, for example, once a day.

[0078] After the process of step S12, the sensor information processing unit 74 returns to the process of step S2 and repeats the processes of steps S2 to S12.

[0079] On the other hand, the deterioration estimation unit 120 performs deterioration estimation processing and remaining life estimation processing based on the acceleration data, ultraviolet light data, and temperature and humidity data received from the sensor system 7 via the network and communication control unit 130.

[0080] [effect] As described above, in the elevator system 100 of this embodiment, the deterioration estimation unit 120 estimates the remaining life of elevator 110 components, at least a portion of which uses organic materials, based on the progress of deterioration due to changes over time in actual environmental conditions such as temperature, humidity, ultraviolet radiation, etc. Therefore, the elevator system 100 of this embodiment can estimate the remaining life of components using organic materials with higher accuracy.

[0081] Second Embodiment Fig. 9 is a diagram showing the configuration of an elevator system according to a second embodiment of the present invention. As shown in Fig. 9, elevator system 200 includes elevator 210 and monitoring center 220. Elevator 210 is configured such that deterioration estimation unit 120 of elevator system 100 shown in Fig. 1, i.e., deterioration estimation unit 745 shown in Fig. 9, is provided inside a sensor information processing unit of a sensor system.

[0082] As shown in Fig. 9, in the elevator 210, the components other than the sensor system 8 are the same as those shown in Fig. 1, so they are given the same reference numerals and redundant explanations will be omitted. Also, in the sensor system 8, the components other than the deterioration estimation unit 745 of the sensor information processing unit 84 are the same as those shown in Fig. 1, so they are given the same reference numerals and redundant explanations will be omitted. Also, the hardware configuration of the sensor information processing unit 84 is the same as the hardware configuration of the sensor information processing unit 74 shown in Fig. 3, so illustration and explanation will be omitted.

[0083] The deterioration estimation unit 745 is provided inside the sensor information processing unit 84 of the sensor system 8, thereby eliminating the need for the communication control unit 130 shown in Fig. 1. The deterioration estimation unit 745 performs deterioration estimation processing and remaining life estimation processing based on the acceleration data that the recording necessity determination unit 743 has determined to be required and that has been recorded in the memory unit 74d, as well as the ultraviolet light data and temperature / humidity data that have been recorded in the memory unit 74d. Note that the deterioration estimation processing and remaining life estimation processing performed by the deterioration estimation unit 745 are similar to the deterioration estimation processing and remaining life estimation processing performed by the deterioration estimation unit 120 of the elevator system 100 shown in Fig. 1, respectively, and therefore a repeated explanation will be omitted.

[0084] The monitoring center 220 is a functional unit that monitors the operation status, etc., of the elevator 110, and has at least a communication control unit 221 and a display device (not shown). The monitoring center 220 can receive the remaining lifespan estimation results (see FIGS. 6 and 7) from the deterioration estimation unit 745 from the sensor system 8 of the elevator 210 via the network, and display the remaining lifespan estimation results on the display device. By checking the remaining lifespan estimation results displayed on the display device of the monitoring center 220, workers can understand the remaining lifespan of the plastic parts of the elevator 210.

[0085] Furthermore, for example, if an elevator design department evaluates the deterioration of the resin parts of the elevator 210 and modifies the design life of the resin parts, the monitoring center 220 obtains the modified design life from the design department. The monitoring center 220 can then transmit the modified design life to the sensor system 8 via the network. Note that if the design life is modified as a result of the evaluation of deterioration over time, the deterioration estimation unit 745 re-estimates the future change in remaining life based on the change in remaining life in the actual temperature, humidity, and ultraviolet light environment over a predetermined period in accordance with the modified design life. That is, the deterioration estimation unit 745 performs a new remaining life estimation process in accordance with the modified design life.

[0086] Fig. 10 is a diagram for explaining remaining life estimation according to a design life corrected by an aging deterioration assessment in the elevator system 200 according to this embodiment. Fig. 10 shows the change in remaining life that is re-estimated when the design life is corrected by an aging deterioration assessment, with respect to the deterioration progress (change in remaining life) of the pulley 2 due to ultraviolet light irradiation shown in Fig. 7. Therefore, the horizontal axis, vertical axis, curve L10, and curve L12 shown in Fig. 10 are the same as those shown in Fig. 7, and therefore redundant explanations will be omitted.

[0087] The curve L20 drawn with a dashed dotted line in FIG. 10 shows the time (operating years) change characteristic of the remaining life coefficient of the design life corrected by the aging deterioration assessment. The curve L22 drawn with a two-dot dashed line shows the time (operating years) change characteristic of the remaining life coefficient of the estimated life based on changes over time in the actual environment of ultraviolet irradiation, according to the corrected design life. As shown in curve L20, the design life corrected by the aging deterioration assessment, i.e., the number of operating years at which the remaining life coefficient of curve L20 becomes 0, is 20 years. The remaining life re-estimated by the deterioration estimation unit 745 according to this corrected design life, i.e., the number of operating years at which the remaining life coefficient of curve L22 becomes 0, is 39 years, as shown in curve L22.

[0088] As described above, the sensor system 8 of the elevator 210 receives, from the monitoring center 220, update information on the design life, which is update information that can be used for the remaining life estimation process in the deterioration estimation unit 745. The deterioration estimation unit 745 then performs the remaining life estimation process again in accordance with the updated design life. In the elevator system 200 configured in this way, the accuracy of the remaining life estimation is improved, and the part replacement cycle can be further optimized.

[0089] <Third embodiment> FIG. 11 is a diagram showing the configuration of an elevator system according to a third embodiment of the present invention. FIG. 11 shows an example configuration that can be applied, for example, when it is difficult to install communication equipment in an elevator system. As shown in FIG. 11, elevator system 300 includes elevator 310 and display device 320. Compared to the configuration of elevator 210 shown in FIG. 10, elevator 310 does not include a communication control unit 744 and further includes a memory unit 746. Note that the components of elevator 310 other than memory unit 746 are the same as those of elevator 210 shown in FIG. 10, and therefore redundant description will be omitted.

[0090] The display device 320 is a device that displays the remaining life estimation results (see FIGS. 6, 7, and 9), and is configured with a display device such as an LCD (Liquid Crystal Display), an organic EL (Electro-luminescence) display, etc. The display device 320 is connected to the sensor information processing unit 84 of the sensor system 8 of the elevator 310 so as to be able to send and receive data, and inputs and displays the remaining life estimation results from the sensor information processing unit 74.

[0091] The memory unit 746 of the sensor information processing unit 84 is provided to enable checking of recorded acceleration data, ultraviolet light data, temperature and humidity data, remaining life estimation results, etc., as required for maintenance, and is composed of, for example, a card-type storage medium.

[0092] As described above, even when it is difficult to install communication equipment in an elevator system, the estimated remaining lifespan changes of resin parts can be confirmed and investigated by applying the elevator system 300 shown in FIG. 11. <Various modified examples>

[0093] The elevator systems according to various embodiments of the present invention have been described above, but the present invention is not limited to these, and various other modified embodiments can be adopted as long as they do not deviate from the gist of the present invention as set forth in the claims.

[0094] In the elevator systems of the above-described various embodiments, examples have been described in which the load determination unit 741 performs the load determination process based on the acceleration data of the car 1, but the present invention is not limited to this. Typically, elevator control systems are equipped with a car load sensor to prevent the car from traveling with an overload. For example, the load determination unit 741 may acquire information from the load sensor and perform the load determination process based on the information from the load sensor. In this case, in order to acquire the information from the load sensor, the sensor information processing unit 74 is connected to the elevator control system so as to be able to send and receive data.

[0095] In the elevator systems of the above-described various embodiments and modifications, an example has been described in which the sensor system is installed on top of car 1 in consideration of securing installation space for the sensor system and accessibility and workability, but the present invention is not limited to this. Rather than integrating the components included in the sensor system, some or all of them may be separated and installed in other locations. For example, acceleration sensor 71 of the sensor system may be attached to the door of car 1. In this case, it is possible to perform load determination processing by detecting whether the door is open or closed from the acceleration in the door opening / closing direction, and by determining whether the door is open or closed based on the detected door opening / closing information, it is possible to perform load determination with higher accuracy.

[0096] In the elevator systems of the above-described various embodiments and modifications, the sensor information processing unit of the sensor system is configured with a single microcontroller. However, the present invention is not limited to this. For example, the sensor information processing unit may be configured with a microcontroller that receives detection data from various sensors and a microcontroller that performs various determination processes. In this case, the various sensors do not have to be installed in the same location as the microcontroller that performs various determination processes, and can be installed in an optimal location for detecting environmental information. The detection data from the various sensors is then transmitted from the microcontroller that receives the detection data from the various sensors to the microcontroller that performs various determination processes. [Explanation of symbols]

[0097] 1...car, 2,6...pulley, 3...hoist, 4...rope, 7,8...sensor system, 71...acceleration sensor, 72...temperature / humidity sensor, 73...ultraviolet sensor, 74,84...sensor information processing unit, 74a...CPU, 74b...ROM, 74c...RAM, 74d,746...storage unit, 74e...communication unit, 100,200,300...elevator system, 110,210,310...elevator, 120,745...deterioration estimation unit, 130,221,744...communication control unit, 220...monitoring center, 221...communication control unit, 320...display device, 741...load determination unit, 742...travel determination unit, 743...recording necessity determination unit

Claims

1. an elevator having a component at least partially constructed from an organic material; a first sensor that detects environmental information including at least temperature at a first detection period that is longer than a second detection period; a second sensor that detects a physical quantity resulting from the elevator's travel at the second detection period; a deterioration estimation unit that estimates a remaining life of the component based on the environmental information detected by the first sensor for a predetermined period of time. Elevator system.

2. The environmental information detected by the first sensor is recorded regardless of whether the elevator is loaded or not; The physical quantity detected by the second sensor is recorded according to the state of whether the elevator is loaded or not.

10. The elevator system of claim 1.

3. a load determination unit that determines whether the elevator is loaded or not based on the physical quantity detected by the second sensor; 3. The elevator system of claim 2.

4. The elevator car further includes a record necessity determination unit that determines whether or not the physical quantity needs to be recorded based on the result of the load presence / absence determination by the load determination unit.

4. The elevator system of claim 3.

5. a running determination unit that determines a running state of the elevator based on the physical quantity detected by the second sensor; 5. The elevator system of claim 4.

6. Of the physical quantities determined to need to be recorded by the recording necessity determination unit, the portion during which the vehicle is moving and the portion during which the vehicle is stopped for a predetermined period before and after the portion during which the vehicle is moving, as determined by the movement determination unit, are recorded.

6. The elevator system of claim 5.

7. a communication unit that transmits the environmental information and the physical quantity to the deterioration estimation unit; An elevator system according to any one of claims 1 to 6.

8. The update information that the deterioration estimation unit can use to estimate the remaining life can be received from an external source.

8. The elevator system of claim 7.

9. The deterioration estimation unit re-estimates the remaining life of the part in accordance with the updated information.

9. The elevator system of claim 8.

10. An elevator having components at least partially composed of organic materials; a first sensor for detecting environmental information including at least temperature; a deterioration estimation unit that estimates a remaining life of the component based on the environmental information detected by the first sensor for a predetermined period, the environmental information including humidity information. Elevator system.

11. An elevator having components at least partially composed of organic materials; a first sensor for detecting environmental information including at least temperature; a deterioration estimation unit that estimates a remaining life of the component based on the environmental information detected by the first sensor for a predetermined period, the environmental information including information on ultraviolet rays. Elevator system.

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