CN112236383B - Temperature transition determination device, maintenance planning system, and elevator system - Google Patents
Temperature transition determination device, maintenance planning system, and elevator system Download PDFInfo
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- CN112236383B CN112236383B CN201880094269.7A CN201880094269A CN112236383B CN 112236383 B CN112236383 B CN 112236383B CN 201880094269 A CN201880094269 A CN 201880094269A CN 112236383 B CN112236383 B CN 112236383B
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- temperature transition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The temperature transition determination device is provided with, for example, a storage unit (50), a fluctuation calculation unit (51), and a transition determination unit (52). The value measured during the diagnosis operation of the elevator is stored in a storage unit (50). A fluctuation calculation unit (51) calculates a seasonal fluctuation component of the temporal change by removing the long-term fluctuation component from the temporal change of the values stored in the storage unit (50). A transition determination unit (52) determines the temperature transition of the elevator space on the basis of the seasonal fluctuation component of the temporal change calculated by the fluctuation calculation unit (51) and the measured temperature value of the elevator space.
Description
Technical Field
The invention relates to a temperature transition determination device, a maintenance planning system, and an elevator system.
Background
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2006-312528
Disclosure of Invention
Problems to be solved by the invention
The aging of the components provided in the elevator varies depending on the temperature. In the elevator described in patent document 1, a thermometer is used to measure the temperature of the battery. In the case of a constant thermometer, it is necessary to properly manage the thermometer so that the thermometer functions properly. Therefore, there is a problem that maintenance items of elevator maintenance personnel are increased and it is troublesome.
The present invention has been made to solve the above problems. The invention aims to provide a temperature transition determination device which can determine the temperature transition of an elevator space without a new measuring instrument. It is another object of the present invention to provide a maintenance planning system using such a temperature transition determination device. It is a further object of the present invention to provide an elevator system that can determine temperature transitions in an elevator space without the need for new gauges.
Means for solving the problems
The temperature transition determination device of the present invention includes: a storage means for storing a value measured in a diagnostic operation in which a car of an elevator performs a specific operation using a specific device; a calculation unit that calculates a seasonal variation component that changes with time by removing the long-term variation component from the temporal variation of the values stored in the storage unit; and a 1 st specifying means for specifying the temperature transition of the elevator space based on the seasonal variation component of the temporal variation calculated by the calculating means and the measured temperature value of the elevator space.
A maintenance scheduling system according to the present invention includes: the temperature transition determination device; a 2 nd calculating means for calculating the life of the components disposed in the elevator space based on the temperature transition determined by the 1 st determining means and the travel history of the car; and a determination unit that determines the timing of the component inspection or replacement based on the lifetime calculated by the 2 nd calculation unit.
Further, a maintenance scheduling system according to the present invention includes: the temperature transition determination device; a category determination unit that determines an environmental category to which the elevator space belongs, based on the temperature transition determined by the 1 st determination unit; and a determination means for determining the timing of point inspection or replacement of the components disposed in the elevator space based on the environment type determined by the type determination unit.
Further, a maintenance scheduling system according to the present invention includes: the temperature transition determination device; a category determination unit that determines an environmental category to which the elevator space belongs, based on the temperature transition determined by the 1 st determination unit and the difference between the outside air temperatures; a 2 nd specifying means for specifying a humidity transition of the elevator space based on the environment type determined by the type determining means; a 2 nd calculation means for calculating the life of the components disposed in the elevator space based on the temperature transition determined by the 1 st determination means, the humidity transition determined by the 2 nd determination means, and the travel history of the car; and a determination unit that determines the timing of the component inspection or replacement based on the lifetime calculated by the 2 nd calculation unit.
An elevator system of the present invention includes: a car of an elevator; a specific device; an operation control means for starting a diagnostic operation when the start condition is satisfied and causing the car to perform a specific operation using the equipment; a measurement unit that measures a specific value during a diagnostic operation; a storage unit that stores the value measured by the measurement unit; a calculation unit that calculates a seasonal variation component that changes with time by removing the long-term variation component from the temporal variation of the values stored in the storage unit; and a determination means for determining the temperature transition of the elevator space based on the seasonal variation component of the temporal change calculated by the calculation means and the measured temperature value of the elevator space.
Effects of the invention
For example, the temperature transition determination device of the present invention includes a storage unit, a calculation unit, and a determination unit. The calculation means calculates a seasonal fluctuation component of the temporal change by removing the long-term fluctuation component from the temporal change of the value stored in the storage means. The specifying means specifies the temperature transition of the elevator space based on the seasonal variation component of the temporal variation calculated by the calculating means and the measured temperature value of the elevator space. According to the invention, the temperature transition of the elevator space can be determined without the need of frequently setting a new measuring instrument.
Drawings
Fig. 1 is a diagram showing an example of an elevator system according to embodiment 1.
Fig. 2 is a diagram showing a connection example of devices provided in an elevator.
Fig. 3 is a flowchart showing an example of the operation of the control device.
Fig. 4 is a flowchart showing another operation example of the control device.
Fig. 5 is a diagram showing an example of a maintenance terminal.
Fig. 6 is a flowchart showing an example of the operation of the data center.
Fig. 7 is a flowchart showing another action example of the data center.
Fig. 8 is a graph showing temporal changes in the minimum voltage value of the battery.
Fig. 9 is a diagram for explaining the function of the transition specifying unit.
Fig. 10 is a diagram showing another example of the data center.
Fig. 11 is a diagram showing an example of the operation of the data center.
Fig. 12 is a diagram showing another example of the data center.
Fig. 13 is a diagram showing another operation example of the data center.
Fig. 14 is a diagram showing another example of the data center.
Fig. 15 is a diagram showing another operation example of the data center.
Fig. 16 is a diagram for explaining the function of the transition specifying unit.
Fig. 17 is a diagram showing an example of hardware resources of the control device.
Fig. 18 is a diagram showing another example of hardware resources of the control device.
Detailed Description
The invention is described with reference to the accompanying drawings. Duplicate descriptions are appropriately simplified or omitted. In the drawings, the same reference numerals denote the same or equivalent parts.
Fig. 1 is a diagram showing an example of an elevator system according to embodiment 1. The elevator system shown in fig. 1 includes an elevator 1 and a data center 2. The elevator 1 and the data center 2 are able to communicate via a communication network 3. The way in which the elevator 1 communicates with the data centre 2 can be any way. Fig. 2 is a diagram showing a connection example of the devices provided in the elevator 1.
The elevator 1 includes, for example, a car 10 and a counterweight 11. The car 10 moves up and down in the hoistway 12. The counterweight 11 moves up and down in the hoistway 12. The car 10 and the counterweight 11 are suspended in the hoistway 12 by the main ropes 13.
The hoisting machine 14 includes a drive sheave 15, a motor 16, and a brake device 17. The main ropes 13 are wound around the drive sheave 15. The motor 16 drives the drive sheave 15. The motor 16 is controlled by a control device 18. That is, the control device 18 controls the rotation and stop of the drive sheave 15. The car 10 moves with the rotation of the drive sheave 15. If the drive sheave 15 is not rotated, the car 10 is stopped. An encoder (not shown) is provided on the rotating shaft of the motor 16. When the motor 16 rotates, a rotation signal indicating the rotation direction and the rotation angle is output from the encoder. The rotation signal output from the encoder is input to the control device 18.
The brake device 17 is a device for holding the car 10 stationary. The braking device 17 is controlled by a control device 18. In the normal operation, the braking device 17 operates after the driving sheave 15 is stopped. When the brake device 17 is operated, a member that is interlocked with the drive sheave 15 is urged so as to prevent the rotation of the drive sheave 15.
When the descending speed of the car 10 exceeds a specific 1 st reference speed, the governor 19 operates an emergency braking member 20 provided in the car 10. The speed governor 19 includes, for example, a governor rope 21, a governor sheave 22, and a tension sheave 23. The governor rope 21 is connected to the car 10. The governor rope 21 is wound around the governor sheave 22 and the tension pulley 23. When the car 10 moves, the governor rope 21 moves. When the governor rope 21 moves, the governor sheave 22 and the tension pulley 23 rotate. An encoder may be provided on the rotating shaft of the governor sheave 22. In this case, a rotation signal indicating the rotation direction and rotation angle of the governor sheave 22 is output from the encoder. The rotation signal output from the encoder is input to the control device 18.
The safety device 24 is provided in the hoistway 12, for example. The safety device 24 forcibly stops the car 10 when the car 10 enters the terminal floor at a speed higher than the specific 2 nd reference speed. In the example shown in fig. 1, when the car 10 passes a specific position upward at a speed higher than the 2 nd reference speed, the safety device 24 operates. When the safety device 24 is actuated, deceleration of the motor 16 is forcibly started. Thereby, the drive sheave 15 is stopped. Namely, the car 10 stops.
The battery 25 is used to allow passengers in the car 10 to descend to the nearest floor in the event of a power failure. For example, when a power failure occurs, the electric power from the battery 25 is supplied to the control device 18, the hoisting machine 14, and the car 10.
The communication device 26 communicates with the data center 2. The communication device 26 is connected to the control device 18. The manner in which the communication device 26 communicates with the data center 2 may be any manner.
Fig. 1 shows an example in which a hoisting machine 14, a control device 18, a battery 25, and a communication device 26 are provided in a hoistway 12. When the elevator 1 includes a machine room, the hoisting machine 14, the control device 18, the battery 25, and the communication device 26 may be installed in the machine room. The hoisting machine 14, the control device 18, the battery 25, and a part of the communication device 26 may be installed in the machine room.
As shown in fig. 2, the control device 18 includes, for example, an operation control unit 30, a measurement unit 31, and a temperature acquisition unit 32. Hereinafter, the functions of the control device 18 will be described with reference to fig. 3 and 4. Fig. 3 is a flowchart showing an example of the operation of the control device 18.
The controller 18 determines whether or not the start condition is satisfied (S101). The start condition is a condition for starting the diagnostic operation. The start condition is set in advance. If the start condition is not satisfied, the operation control unit 30 controls, for example, the normal operation. In the normal operation, the operation control section 30 makes the car 10 sequentially respond to the registered calls.
As an example, the diagnosis operation is performed periodically. For example, when it is 1 am of 10 days per month, the start condition is established. As another example, the diagnosis operation is performed irregularly. For example, when the communication device 26 receives a specific signal from the outside, the start condition is established. When the start condition is satisfied, the operation control unit 30 starts the diagnosis operation (S102). The diagnosis operation is performed to determine whether or not there is an abnormality in the equipment provided in the elevator 1.
The operation control unit 30 causes the car 10 to perform a specific operation using a specific device during the diagnosis operation, for example. The measurement unit 31 measures a specific value during the diagnosis operation (S103). For example, the measurement unit 31 measures a value related to the operation of the car 10 or a value related to the above-described equipment. The value measured by the measurement unit 31 is used to determine the presence or absence of an abnormality.
For example, the operation control unit 30 causes the car 10 to perform a specific operation using the battery 25 during the diagnosis operation. For example, the operation control unit 30 causes the car 10 to perform a specific travel using the electric power from the battery 25. While the above-described specific travel is being performed in the diagnostic operation, the voltage value of the battery 25 is measured by the measurement unit 31. When the minimum voltage value Vmin of the battery 25 measured by the measurement unit 31 is lower than the reference value, it is determined as abnormal.
As another example, the operation control unit 30 causes the car 10 to perform a specific operation using the brake device 17 during the diagnosis operation. For example, the operation control unit 30 moves the car 10 in a specific direction at a specific speed. The operation control unit 30 operates the brake device 17 when the car 10 moves at the specific speed. When the braking device 17 is operated, the car 10 starts decelerating, and thereafter the car 10 stops. The measurement unit 31 measures the distance traveled by the car 10 from the operation of the brake device 17 to the stop of the car 10. In the following, this distance is also expressed as a movement distance L1. For example, the movement distance L1 is measured based on a rotation signal from an encoder provided on the rotation shaft of the motor 16. When the encoder is provided on the rotating shaft of the speed governor sheave 22, the movement distance L1 may be measured based on a rotation signal from the encoder provided on the rotating shaft of the speed governor sheave 22. When the moving distance L1 measured by the measurement unit 31 exceeds a reference value, it is determined that there is an abnormality.
As another example, the operation control unit 30 causes the car 10 to perform a specific operation using the safety device 24 during the diagnosis operation. For example, the operation control unit 30 causes the car 10 to enter the terminal floor at a specific speed higher than the 2 nd reference speed. Thereby, the safety device 24 operates. The measurement unit 31 measures the distance traveled by the car 10 from the time the safety device 24 operates to the time the car 10 stops. In the following, this distance is also expressed as a movement distance L2. For example, the movement distance L2 is measured based on a rotation signal from an encoder provided on the rotation shaft of the motor 16. When the encoder is provided on the rotating shaft of the speed governor sheave 22, the movement distance L2 may be measured based on a rotation signal from the encoder provided on the rotating shaft of the speed governor sheave 22. When the moving distance L2 measured by the measurement unit 31 exceeds a reference value, it is determined that there is an abnormality.
When the diagnosis operation is finished (S104), the measurement value of the measurement unit 31 is transmitted to the data center 2 (S105). The measurement values transmitted to the data center 2 include, for example, the minimum voltage value Vmin, the travel distance L1, and the travel distance L2. The elevator 1 may have a function of determining whether or not there is an abnormality, or the data center 2 may have a function of determining whether or not there is an abnormality. When the elevator 1 has the above-described determination function, for example, the presence or absence of an abnormality is determined after the diagnosis operation is completed. When the data center 2 has the above-described determination function, for example, the presence or absence of an abnormality is determined after the processing of S105.
Fig. 4 is a flowchart showing another operation example of the control device 18. The control device 18 determines whether or not communication with the maintenance terminal 40 is possible (S201).
The maintenance worker performs maintenance work of the elevator 1 regularly or irregularly. The maintenance person carries the maintenance terminal 40 when performing maintenance work. Maintenance personnel enter the hoistway 12 with the maintenance terminal 40. In the case where the elevator 1 has a machine room, the maintenance person carries the maintenance terminal 40 to enter the machine room.
Fig. 5 is a diagram showing an example of the maintenance terminal 40. The maintenance terminal 40 includes, for example, a thermometer 41 and a communication unit 42. The communication unit 42 communicates with the control device 18. For example, when the maintenance terminal 40 is connected to the control device 18, it is determined as yes in S201. The communication unit 42 may communicate with the control device 18 via the communication device 26. The communication unit 42 may communicate with the control device 18 via a device provided in the car 10. The communication unit 42 may communicate with the control device 18 wirelessly.
If yes is determined in S201, the control device 18 determines whether or not the maintenance terminal 40 is present in the hoistway 12 (S202). For example, if the control device 18 is installed in the hoistway 12 and the maintenance terminal 40 and the control device 18 are wired, it is determined as yes in S202. When the maintenance person carries the maintenance terminal 40, for example, when a specific switch disposed in the hoistway 12 is operated, it is determined as yes in S202. As another example, when a maintenance switch provided on the car 10 is operated, it is determined as yes in S202.
If it is determined as yes in S202, the temperature acquisition unit 32 acquires the measured temperature value measured by the thermometer 41 (S203). The value acquired in S203 is an actual measured value of the temperature of the hoistway 12. The measured temperature value acquired by the temperature acquisition unit 32 is transmitted to the data center 2 (S204).
As shown in fig. 1, the data center 2 includes, for example, a storage unit 50, a fluctuation calculation unit 51, a transition determination unit 52, and a communication unit 53. Hereinafter, the functions of the data center 2 will be described with reference to fig. 6 to 9. Fig. 6 is a flowchart showing an example of the operation of the data center 2.
The data center 2 determines whether or not the value measured by the measuring unit 31 is received from the elevator 1 (S301). In S105, the measurement value transmitted from the elevator 1 is received by the communication unit 53. When receiving the measurement value from the elevator 1, the communication unit 53 stores the received measurement value in the storage unit 50 (S302). Thus, the value measured by the measurement unit 31 during the diagnosis operation is stored in the storage unit 50. That is, the value relating to the operation of the car 10 and the value relating to the specific device are stored in the storage unit 50.
The diagnostic operation is performed, for example, periodically. The minimum voltage value Vmin of the battery 25 measured during the diagnosis operation is periodically stored in the storage unit 50. As another example, the moving distance L1 of the car 10 measured during the diagnosis operation is periodically stored in the storage unit 50. As another example, the travel distance L2 of the car 10 measured during the diagnosis operation is periodically stored in the storage unit 50.
In addition, the data center 2 determines whether or not the measured value of the temperature acquired by the temperature acquisition unit 32 is received from the elevator 1 (S303). In S204, the measured temperature value transmitted from the elevator 1 is received by the communication unit 53. When receiving the measured temperature value from the elevator 1, the communication unit 53 stores the received measured temperature value in the storage unit 50 (S304). Thus, the measured value of the temperature of the hoistway 12 measured by the thermometer 41 is stored in the storage unit 50. The maintenance personnel perform maintenance work, for example, periodically. The measured value of the temperature of the hoistway 12 measured by the thermometer 41 is periodically stored in the storage unit 50.
Fig. 7 is a flowchart showing another operation example of the data center 2. For example, the minimum voltage value Vmin of the battery 25 measured during the diagnosis operation is stored in the storage unit 50. The fluctuation calculation unit 51 reads the minimum voltage value Vmin of the battery 25 from the storage unit 50 (S401).
Fig. 8 is a graph showing the temporal change in the minimum voltage value Vmin of the battery 25. A curve a shown in fig. 8 shows a change with time of the minimum voltage value Vmin measured during the diagnostic operation of a certain elevator a. Curve B shows the temporal change in the minimum voltage value Vmin measured during the diagnostic operation of the other elevator B.
As shown in fig. 8, the temporal change in the minimum voltage value Vmin includes a long-term fluctuation component and a seasonal fluctuation component. The long-term fluctuation component is mainly generated by aging of the battery 25. For example, the minimum voltage value Vmin becomes a value that gradually becomes smaller as time passes due to the aging of the battery 25. On the other hand, the seasonal variation component is mainly generated by a temperature change of the hoistway 12 in which the battery 25 is installed. For example, the minimum voltage value Vmin has a large value in summer when the temperature of the hoistway 12 is high, and has a small value in winter when the temperature of the hoistway 12 is low.
The fluctuation calculation unit 51 calculates a seasonal fluctuation component of the temporal change by removing the long-term fluctuation component from the temporal change of the minimum voltage value Vmin (S402). For example, the fluctuation calculating unit 51 calculates a difference between a minimum voltage value measured in a certain month and a minimum voltage value measured in the same month of the following year as the long-term fluctuation component. The fluctuation calculation unit 51 may calculate a value obtained by averaging the above-described differences for a plurality of months as the long-term fluctuation component. The fluctuation calculating unit 51 may calculate a difference between a maximum value of the minimum voltage values measured in a given year and a maximum value of the minimum voltage values measured in the next year as the long-term fluctuation component. The fluctuation calculating unit 51 may calculate a difference between a minimum value of the minimum voltage values measured in a given year and a minimum value of the minimum voltage values measured in the next year as the long-term fluctuation component. The fluctuation calculation unit 51 may determine the long-term fluctuation component by identifying a prediction model having the long-term fluctuation component and the periodic fluctuation component by a statistical method. As the above prediction model, for example, the following model can be adopted: the model is expressed as an aggregate of components expressed by a first-order function or a second-order function and components expressed by a trigonometric function. Other models may be used as the predictive model.
The fluctuation calculation unit 51 may calculate the period and amplitude of the seasonal fluctuation component in S402. The calculated amplitude of the seasonal variation component corresponds to a difference between the summer temperature and the winter temperature of the hoistway 12.
Next, the transition determination unit 52 reads the measured temperature value of the hoistway 12 from the storage unit 50 (S403). The transition determination unit 52 determines the temperature transition of the hoistway 12 from the seasonal variation component of the temporal variation of the minimum voltage value Vmin calculated in S402 and the measured temperature value read out in S403 (S404).
Fig. 9 is a diagram for explaining the function of the transition determination unit 52. For example, the storage unit 50 stores in advance a 1 st conversion table for converting a seasonal variation component of the temporal variation of the minimum voltage value Vmin into a relative temperature transition. The transition determination unit 52 converts the seasonal variation component calculated in S402 into a relative temperature transition by using the 1 st conversion table. Transition determination unit 52 determines an offset value of the relative temperature transition based on the measured temperature value read in S403. Thus, the transition determination unit 52 determines the absolute temperature transition of the hoistway 12. In the following, the absolute temperature transition is simply referred to as "temperature transition".
In fig. 9, the temperature transition of the hoistway 12 specified by the transition specification unit 52 is shown by a curve C. If the curve C can be determined, the temperature of the hoistway 12 can be estimated for a particular day in the past and in the future. In addition, when the temperature measured when the maintenance worker visits does not match the estimated temperature, the actual temperature may be obtained by using a probabilistic model.
In the example shown in the present embodiment, the temperature transition of the hoistway 12 is determined using the minimum voltage value Vmin of the battery 25. The minimum voltage value Vmin of the battery 25 is a value measured during the diagnosis operation. Therefore, in the example shown in the present embodiment, the temperature transition of the hoistway 12 can be specified without frequently installing a new meter. In the maintenance spot inspection, the maintenance items of the maintenance personnel are not increased.
In the present embodiment, an example in which the minimum voltage value Vmin of the battery 25 is used to determine the temperature transition of the hoistway 12 is described. This is but one example. The temperature transition of the hoistway 12 may be determined by the same method as the determination method described above using the travel distance L1 of the car 10. The distance L2 traveled by the car 10 may also be used to determine the temperature transition of the hoistway 12. The battery 25 is not a device used in normal operation. Therefore, when the minimum voltage value Vmin of the battery 25 is used, there is an advantage that the temperature transition of the hoistway 12 can be specified without being affected by the number of times the car 10 travels or the like.
In the present embodiment, an example in which the temperature transition of the hoistway 12 is specified using the actual measurement value of the temperature of the hoistway 12 is described. The hoistway 12 is an example of an elevator space in which equipment is installed. When the elevator 1 is provided with a machine room, the elevator space may be the machine room. That is, the transition determination unit 52 may determine the temperature transition of the equipment room using the measured temperature value of the equipment room measured by the thermometer 41. In this case, in S202, it is determined whether or not the maintenance terminal 40 exists in the machine room. If it is determined as yes in S202, the temperature acquisition unit 32 acquires the measured temperature value measured by the thermometer 41.
In addition, the difference between the temperature of the hoistway 12 and the temperature of the machine room is often small. Therefore, the transition determination unit 52 may determine the temperature transition of the machine room using the measured value of the temperature of the hoistway 12 measured by the thermometer 41. The transition determination unit 52 may determine the temperature transition of the hoistway 12 based on the measured value of the temperature of the machine room measured by the thermometer 41. That is, the transition determination unit 52 determines the temperature transition of the elevator space using the measured temperature value of the elevator space measured by the thermometer 41.
Next, an example of constructing a maintenance scheduling system using the temperature transition specifying function provided in the data center 2 will be described. Fig. 10 is a diagram showing another example of the data center 2. The data center 2 shown in fig. 10 includes, for example, a life calculation unit 54 and a determination unit 55 in addition to the storage unit 50, the fluctuation calculation unit 51, the transition determination unit 52, and the communication unit 53. Fig. 11 is a diagram showing another operation example of the data center 2. The operation shown in fig. 11 is performed after the operation shown in fig. 7, for example.
When the temperature transition of the elevator space is determined in S404, the life calculation unit 54 calculates the lives of the components disposed in the elevator space (S501). For example, the life calculating unit 54 simulates the degradation of the component based on the temperature transition determined by the transition determining unit 52 and the travel history of the car 10, and calculates the life of the component. The travel history of the car 10 may be the number of times the car 10 travels or the travel distance of the car 10. For example, the lifetime calculating unit 54 calculates the lifetime of the electronic components disposed inside the control device 18. The life calculating unit 54 may calculate the life of a resin member such as a belt.
The determination unit 55 determines the component spot inspection timing (S502). The determination unit 55 determines the timing of the spot inspection based on the component life calculated by the life calculation unit 54. The determination unit 55 may determine the replacement timing of the component in S502. Thus, an appropriate maintenance plan can be created according to the timing of the component inspection or replacement.
Fig. 12 is a diagram showing another example of the data center 2. The data center 2 shown in fig. 12 includes, for example, a category determination unit 56 and a determination unit 55 in addition to the storage unit 50, the fluctuation calculation unit 51, the transition determination unit 52, and the communication unit 53. Fig. 13 is a diagram showing another operation example of the data center 2. The operation shown in fig. 13 is performed after the operation shown in fig. 7, for example.
When the temperature transition of the elevator space is specified in S404, the category determination unit 56 determines the environmental category to which the elevator space belongs (S601). For example, the environment of the elevator space of the elevator 1 differs depending on the structure of the building in which the elevator 1 is installed. The environment of the elevator space of the elevator 1 differs depending on the position and direction in which the elevator 1 is installed. For example, when the elevator 1 is installed in the center of a large building, the temperature of the elevator space is constant throughout the year. Further, in the case where the elevator 1 is disposed at a position where outside air easily enters, the temperature of the elevator space thereof is easily affected by the outside air temperature. In the case where the elevator 1 is a so-called transparent elevator and is disposed at a position where it is exposed to direct sunlight, the temperature of its elevator space changes more greatly than the change in the outside air temperature.
In the examples shown in fig. 12 and 13, a plurality of environment types are set in advance. In addition, the 1 st classification condition for determining the environment type to which the elevator space belongs is set in advance. The category determination unit 56 determines the environment category based on the temperature transition determined by the transition determination unit 52 and the 1 st classification condition. For example, the type determination unit 56 calculates characteristic quantities such as the maximum temperature, the minimum temperature, the period of the transition, and the amplitude of the transition from the determined temperature transition. The category determination unit 56 determines the environment category by substituting the calculated feature amount into the 1 st classification condition.
The determination unit 55 determines the component spot inspection timing (S602). The determination unit 55 determines the timing of point inspection of the components disposed in the elevator space based on the environment type of the elevator space determined by the type determination unit 56. For example, the cycle of component spot inspection is set in advance for each environment type. The determination unit 55 may determine the replacement timing of the component in S602. Thus, an appropriate maintenance plan can be created according to the timing of the component inspection or replacement.
Fig. 14 is a diagram showing another example of the data center 2. The data center 2 shown in fig. 14 includes, for example, a category determination unit 56, a transition determination unit 57, a lifetime calculation unit 54, and a determination unit 55 in addition to the storage unit 50, the change calculation unit 51, the transition determination unit 52, and the communication unit 53. Fig. 15 is a diagram showing another operation example of the data center 2. The operation shown in fig. 15 is performed after the operation shown in fig. 7, for example.
When the temperature transition of the elevator space is specified in S404, the category determination unit 56 determines the environmental category to which the elevator space belongs (S701). In the example shown in fig. 14 and 15, the type determination unit 56 determines the environment type based on the difference between the temperature transition determined by the transition determination unit 52 and the outside air temperature. The outside air temperature can be obtained from an external unit such as a meteorological office. The category determination unit 56 determines the environment category based on the difference between the temperature of the elevator space on a certain day estimated from the temperature transition and the outside air temperature on that day.
For example, in the case where an air conditioner is installed in the elevator space, the difference varies depending on the season. In the case where the elevator 1 is disposed at a position where outside air easily enters, the above difference is small throughout the year. The difference also varies depending on the material of the wall forming the hoistway 12.
In the examples shown in fig. 14 and 15, a plurality of environment types are set in advance. In addition, the 2 nd classification condition for determining the environment type to which the elevator space belongs is set in advance. The category determination unit 56 determines the environment category based on the difference and the 2 nd classification condition, for example.
In the example shown in fig. 14 and 15, the storage unit 50 stores the 2 nd conversion table for each environment type in advance. The 2 nd conversion table is a table for converting the outside air humidity into the humidity of the elevator space. For example, the humidity of various elevator spaces is actually measured to create the 2 nd conversion table. The 2 nd conversion table is created in advance using the measured values of the outside air humidity and the humidity in the elevator space and stored in the storage unit 50. The outside air humidity can be obtained from an external facility such as a meteorological office.
The transition specifying unit 57 specifies the humidity transition of the elevator space based on the environment type determined by the type determining unit 56. Fig. 16 is a diagram for explaining the function of the transition determination unit 57. Fig. 16 shows an example of determining the humidity transition using the 2 nd conversion table of the environment type in which the building includes the air-conditioning equipment but the hoistway 12 does not include the air-conditioning equipment. For example, the transition determination unit 57 reads out the corresponding 2 nd conversion table from the storage unit 50 (S702). That is, in S702, the transition determination unit 57 reads out the 2 nd conversion table corresponding to the environment type determined by the type determination unit 56 from the storage unit 50. The transition determination unit 57 determines the humidity transition of the elevator space using the read 2 nd conversion table (S703).
When the humidity transition of the elevator space is determined in S703, the lifetime calculation unit 54 calculates the lifetime of the components disposed in the elevator space (S704). For example, the life calculating unit 54 simulates the deterioration of the component based on the temperature transition specified by the transition specifying unit 52, the humidity transition specified by the transition specifying unit 57, and the travel history of the car 10, and calculates the life of the component. The travel history of the car 10 may be the number of times the car 10 travels or the travel distance of the car 10.
The determination unit 55 determines the component click timing (S705). The determination unit 55 determines the timing of the spot inspection based on the component life calculated by the life calculation unit 54. The determination unit 55 may determine the replacement timing of the component in S705. Thus, an appropriate maintenance plan can be created according to the timing of the component inspection or replacement.
In the present embodiment, an example in which the data center 2 has a temperature transition determination function is described. The elevator 1 may be provided with the temperature transition determination function described above. The elevator 1 may be a part having a temperature transition function.
In the present embodiment, the respective sections shown by reference numerals 30 to 32 show functions of the control device 18. Fig. 17 is a diagram showing an example of hardware resources of the control device 18. The control device 18 includes, for example, a processing circuit 60 as a hardware resource, and the processing circuit 60 includes a processor 61 and a memory 62. The control device 18 implements the functions of the respective sections shown by reference numerals 30 to 32 by executing a program stored in the memory 62 by the processor 61.
The processor 61 is also called a CPU (Central Processing Unit), a Central Processing Unit, a Processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. As the memory 62, a semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a DVD may be used. Semiconductor memories which may be used include RAM, ROM, flash memory, EPROM, EEPROM, and the like.
Fig. 18 is a diagram showing another example of the hardware resources of the control device 18. In the example shown in fig. 18, the control device 18 includes a processing circuit 60, and the processing circuit 60 includes, for example, a processor 61, a memory 62, and dedicated hardware 63. Fig. 18 shows an example in which a part of the functions of the control device 18 is realized by dedicated hardware 63. All the functions of the control device 18 may be realized by dedicated hardware 63. As the dedicated hardware 63, a single Circuit, a composite Circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof may be employed.
Similarly, the respective parts shown by reference numerals 50 to 57 show functions of the data center 2. The hardware resources of the data center 2 are the same as the example shown in fig. 17. The data center 2 includes, for example, a processing circuit including a processor and a memory as a hardware resource. The functions of the storage unit 50 are realized by the memory. The data center 2 implements functions of the respective parts shown by reference numerals 50 to 57 by executing programs stored in the memory by the processor. The data center 2 may also include, as hardware resources, processing circuits including a processor, a memory, and dedicated hardware. Further, all the functions of the data center 2 may be realized by dedicated hardware.
Industrial applicability
The determined temperature transition can also be used to control an air conditioning system arranged in the elevator space.
Description of the reference symbols
1: an elevator; 2: a data center; 3: a communication network; 10: a car; 11: a counterweight; 12: a hoistway; 13: a main rope; 14: a traction machine; 15: a drive sheave; 16: an electric motor; 17: a braking device; 18: a control device; 19: a speed limiter; 20: an emergency brake member; 21: a governor rope; 22: a governor sheave; 23: a tension wheel; 24: a safety device; 25: a battery; 26: a communication device; 30: an operation control unit; 31: a measurement unit; 32: a temperature acquisition unit; 40: maintaining the terminal; 41: a thermometer; 42: a communication unit; 50: a storage unit; 51: a variation calculating section; 52: a transition determination unit; 53: a communication unit; 54: a life calculating section; 55: a determination unit; 56: a category determination unit; 57: a transition determination unit; 60: a processing circuit; 61: a processor; 62: a memory; 63: dedicated hardware.
Claims (12)
1. A temperature transition determination device comprising a storage means for storing a value measured in a diagnosis operation in which a car of an elevator performs a specific operation using a specific device, wherein,
the temperature transition determination device further includes:
a calculation unit that calculates a seasonal variation component of the temporal variation by removing a long-term variation component from a temporal variation of the values stored in the storage unit; and
a 1 st specifying means for specifying a temperature transition of the elevator space based on the temporal change seasonal variation component calculated by the calculating means and an actual temperature measurement value of the elevator space.
2. The temperature transition determination apparatus according to claim 1,
the device is a battery and the battery is,
in the diagnosis operation, the car performs a specific travel using the electric power from the battery,
the minimum voltage value of the battery measured during the diagnosis operation is stored in the storage unit.
3. The temperature transition determination apparatus according to claim 1,
the apparatus is a braking device for holding the car stationary,
the braking device is operated when the car moves at a specific 1 st speed in the diagnosis operation,
the moving distance of the car measured in the diagnosis operation is stored in the storage means,
the moving distance is a distance that the car moves from when the braking device operates to when the car stops.
4. The temperature transition determination apparatus according to claim 1,
the device is a safety device that forcibly stops the car when the car enters a terminal floor at a speed faster than a reference speed,
in the diagnosis operation, the car enters the terminal floor at a 2 nd speed faster than the reference speed,
the moving distance of the car measured in the diagnosis operation is stored in the storage means,
the moving distance is a distance that the car moves from the operation of the safety device to the stop of the car.
5. A maintenance scheduling system, comprising:
the temperature transition determination device of any one of claims 1 to 4;
a 2 nd calculation means for calculating the life of the component disposed in the elevator space based on the temperature transition determined by the 1 st determination means and the travel history of the car; and
and a determination unit configured to determine a timing of the component inspection or replacement based on the lifetime calculated by the 2 nd calculation unit.
6. A maintenance scheduling system, comprising:
the temperature transition determination device of any one of claims 1 to 4;
a category determination unit that determines an environmental category to which the elevator space belongs, based on the temperature transition determined by the 1 st determination unit; and
and a determination means for determining the timing of point inspection or replacement of the component disposed in the elevator space based on the environment type determined by the type determination unit.
7. A maintenance scheduling system, comprising:
the temperature transition determination device of any one of claims 1 to 4;
a category determination unit that determines an environmental category to which the elevator space belongs, based on the temperature transition determined by the 1 st determination unit and the difference in the outside air temperature;
a 2 nd specifying means for specifying the humidity transition of the elevator space based on the environment type determined by the type determining means;
a 2 nd calculation means for calculating the life of the component disposed in the elevator space based on the temperature transition determined by the 1 st determination means, the humidity transition determined by the 2 nd determination means, and the travel history of the car; and
and a determination unit configured to determine a timing of the component inspection or replacement based on the lifetime calculated by the 2 nd calculation unit.
8. An elevator system is provided with:
a car of an elevator;
a specific device;
an operation control means for starting a diagnostic operation when a start condition is satisfied and causing the car to perform a specific operation using the equipment;
a measurement unit that measures a specific value during the diagnostic operation; and
a storage unit that stores the value measured by the measurement unit,
wherein the elevator system further comprises:
a calculation unit that calculates a seasonal variation component of the temporal variation by removing a long-term variation component from a temporal variation of the values stored in the storage unit; and
and a determination unit that determines a temperature transition of the elevator space based on the temporal change seasonal variation component calculated by the calculation unit and an actual temperature measurement value of the elevator space.
9. The elevator system of claim 8,
the device is a battery and the battery is,
the operation control means causes the car to perform a specific travel using the electric power from the battery during the diagnosis operation,
the measuring unit measures a voltage value of the battery,
the minimum voltage value measured by the measurement unit during the diagnosis operation is stored in the storage unit.
10. The elevator system of claim 8,
the apparatus is a braking device for holding the car stationary,
the operation control means operates the brake device when the car moves at a specific 1 st speed during the diagnosis operation,
the measurement means measures a distance traveled by the car from when the brake device is operated to when the car is stopped during the diagnosis operation,
the distance measured by the measuring means is stored in the storage means.
11. The elevator system of claim 8,
the device is a safety device that forcibly stops the car when the car enters a terminal floor at a speed faster than a reference speed,
the operation control means causes the car to enter the terminal floor at a 2 nd speed faster than the reference speed in the diagnosis operation,
the measurement means measures a distance traveled by the car from when the safety device is operated to when the car is stopped during the diagnosis operation,
the distance measured by the measuring means is stored in the storage means.
12. The elevator system of any of claims 8-11,
the elevator system further includes:
a thermometer provided at a maintenance terminal carried by a maintenance worker; and
an acquisition unit that acquires an actual temperature measurement value measured by the thermometer when the maintenance terminal is present in the elevator space,
the measured temperature value acquired by the acquisition means is stored in the storage means.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/023314 WO2019244245A1 (en) | 2018-06-19 | 2018-06-19 | Temperature transition identification device, maintenance planning system, and elevator system |
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| Publication Number | Publication Date |
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| CN112236383A CN112236383A (en) | 2021-01-15 |
| CN112236383B true CN112236383B (en) | 2022-02-11 |
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| CN201880094269.7A Active CN112236383B (en) | 2018-06-19 | 2018-06-19 | Temperature transition determination device, maintenance planning system, and elevator system |
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| JP (1) | JP6806287B2 (en) |
| KR (1) | KR102266228B1 (en) |
| CN (1) | CN112236383B (en) |
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| WO (1) | WO2019244245A1 (en) |
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| WO2022195823A1 (en) * | 2021-03-18 | 2022-09-22 | 三菱電機ビルテクノサービス株式会社 | Elevator monitoring device |
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| CN1839084A (en) * | 2003-09-29 | 2006-09-27 | 三菱电机株式会社 | Elevator control device |
| CN101098822A (en) * | 2005-09-30 | 2008-01-02 | 三菱电机株式会社 | Elevator apparatus |
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| CN105531216A (en) * | 2013-09-03 | 2016-04-27 | 三菱电机株式会社 | Elevator control device |
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| JP2003212447A (en) * | 2002-01-28 | 2003-07-30 | Matsushita Electric Works Ltd | Elevator remote supervisory system |
| WO2004083090A1 (en) * | 2003-03-18 | 2004-09-30 | Mitsubishi Denki Kabushiki Kaisha | Emergency stop device for elevator |
| EP1741656B2 (en) * | 2004-04-27 | 2015-06-17 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
| JP2006312528A (en) | 2005-05-09 | 2006-11-16 | Mitsubishi Electric Corp | Electric power storage device of elevator |
| CN103391827B (en) * | 2011-02-24 | 2016-01-20 | 三菱电机株式会社 | Electric discharge device and electrical discharge machining system |
| JP2017088314A (en) * | 2015-11-10 | 2017-05-25 | 株式会社日立ビルシステム | Equipment diagnostic apparatus, equipment diagnostic method, and equipment diagnostic system |
| JP2017149567A (en) * | 2016-02-26 | 2017-08-31 | 株式会社日立ビルシステム | Rope elongation amount prediction device, elevator device, and rope elongation amount prediction system |
| JP2017220328A (en) * | 2016-06-06 | 2017-12-14 | 株式会社日立ビルシステム | Life estimation device for led lighting device |
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2018
- 2018-06-19 WO PCT/JP2018/023314 patent/WO2019244245A1/en active Application Filing
- 2018-06-19 CN CN201880094269.7A patent/CN112236383B/en active Active
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- 2018-06-19 KR KR1020207036134A patent/KR102266228B1/en active IP Right Grant
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1839084A (en) * | 2003-09-29 | 2006-09-27 | 三菱电机株式会社 | Elevator control device |
| CN101098822A (en) * | 2005-09-30 | 2008-01-02 | 三菱电机株式会社 | Elevator apparatus |
| CN102821885A (en) * | 2010-04-09 | 2012-12-12 | 东芝三菱电机产业***株式会社 | Rolled material cooling control device, rolled material cooling control method, and rolled material cooling control program |
| CN105531216A (en) * | 2013-09-03 | 2016-04-27 | 三菱电机株式会社 | Elevator control device |
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| JPWO2019244245A1 (en) | 2020-12-17 |
| KR102266228B1 (en) | 2021-06-18 |
| CN112236383A (en) | 2021-01-15 |
| KR20210002736A (en) | 2021-01-08 |
| TWI765115B (en) | 2022-05-21 |
| WO2019244245A1 (en) | 2019-12-26 |
| TW202000574A (en) | 2020-01-01 |
| JP6806287B2 (en) | 2021-01-06 |
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