Elevator management system, management device, management method, and program

Abstract

Provided are an elevator management system, a management device, a management method, and a program capable of determining the accuracy of the position of a cage calculated based on atmospheric pressure. 【Solution means】The management system 12 includes a local device 13 provided in a building to which an elevator is applied and a management device 14. A pressure sensor 20 provided in the cage measures the atmospheric pressure at its own position when the cage stops. The local device 13 stores, as a reference atmospheric pressure, the atmospheric pressure measured by the pressure sensor 20 when the cage is at the ground floor of the building for use in calculating the position of the cage. In the management device 14, a second communication unit 26 acquires meteorological data including atmospheric pressure from an external service 19 and acquires the reference atmospheric pressure from the local device 13. A determination unit 28 determines whether the difference between the atmospheric pressure of the meteorological data acquired from the external service 19 and the reference atmospheric pressure acquired from the local device 13 is outside a preset first error range.

Description

Technical Field

[0001] The present disclosure relates to an elevator management system, a management device, a management method, and a program.

Background Art

[0002] Patent Document 1 discloses an example of a car position specifying device for an elevator. The car position specifying device acquires pressure data from a pressure sensor provided in the elevator car. In the car position specifying device, a data table storing pressure data for each floor is stored in order to specify the stop floor of the car. The car position specifying device corrects the pressure data stored in the data table when the pressure data in the data table differs from the pressure data measured by the pressure sensor when the car arrives at the reference floor.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the car position specifying device of Patent Document 1, the correction of the pressure data in the data table is performed based on the pressure data measured by the pressure sensor provided in the car. Therefore, the car position specifying device cannot determine the accuracy of the car position calculated based on the pressure when an abnormality occurs in the pressure sensor itself or the like.

[0005] The present disclosure relates to the solution of such problems. The present disclosure provides an elevator management system, a management device, a management method, and a program capable of determining the accuracy of the position of a car calculated based on pressure.

Means for Solving the Problems

[0006] The elevator management system according to the present disclosure includes on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied, and a management device that communicates with the on-site equipment. The on-site equipment includes a pressure sensor provided in the car that measures the air pressure at its own position when the car stops, a first storage unit that stores, as a reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building, a position calculation unit that calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor, and a first communication unit that transmits the position of the car calculated by the position calculation unit from the air pressure measured by the pressure sensor and the reference air pressure stored in the first storage unit to the management device. The management device includes a second communication unit that acquires weather data including the air pressure at the location where the building is provided from an external service, and acquires the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the first communication unit, and a determination unit that determines whether the difference between the air pressure of the weather data acquired from the external service and the reference air pressure acquired from the first communication unit is outside a preset first error range.

[0007] The elevator management device according to the present disclosure is a management device that communicates with on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied. The on-site equipment has a pressure sensor provided in the car that measures the air pressure at its own position when the car stops. The on-site equipment stores, as a reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building. The on-site equipment calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor. The management device includes a second communication unit that acquires weather data including the air pressure at the location where the building is provided from an external service, and acquires the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the on-site equipment, and a position calculation unit that determines whether the difference between the air pressure of the weather data acquired from the external service and the reference air pressure acquired from the on-site equipment is outside a preset first error range.

[0008] The elevator management method according to the present disclosure is a method for managing an elevator executed by a computer that communicates with on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied. The on-site equipment has a pressure sensor provided in the car that measures the air pressure at its position when the car stops. The on-site equipment stores the air pressure measured by the pressure sensor as a reference air pressure when the car is at a preset ground floor of the building. In the elevator management system, the on-site equipment calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor. The computer obtains meteorological data including the air pressure at the location where the building is provided from an external service, obtains the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the on-site equipment, and determines whether the difference between the air pressure of the meteorological data obtained from the external service and the reference air pressure obtained from the on-site equipment is outside a preset first error range.

[0009] The program according to the present disclosure is a program that causes a computer that communicates with on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied to execute a process. The on-site equipment has a pressure sensor provided in the car that measures the air pressure at its position when the car stops. The on-site equipment stores the air pressure measured by the pressure sensor as a reference air pressure when the car is at a preset ground floor of the building. In the elevator management system, the on-site equipment calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor. The computer is caused to obtain meteorological data including the air pressure at the location where the building is provided from an external service, obtain the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the on-site equipment, and determine whether the difference between the air pressure of the meteorological data obtained from the external service and the reference air pressure obtained from the on-site equipment is outside a preset first error range.

Advantages of the Invention

[0010] According to the elevator management system, management device, management method, or program according to the present disclosure, it becomes possible to determine the accuracy of the position of the car calculated based on the air pressure.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0012] The modes for carrying out the subject matter of the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and duplicate explanations are appropriately simplified or omitted. Note that the subject matter of the present disclosure is not limited to the following embodiments, and within the scope not departing from the spirit of the present disclosure, deformation of any component of the embodiment or omission of any component of the embodiment is possible.

[0013] Embodiment 1. FIG. 1 is a configuration diagram of an elevator 1 according to Embodiment 1.

[0014] Elevator 1 is applied to building 2. Elevator 1 is a device that transports users of building 2 and the like between multiple floors of building 2. In building 2, a hoistway 3 of elevator 1 is provided. The hoistway 3 is a vertically long space extending over multiple floors. On each floor of building 2, a landing 4 of elevator 1 is provided. The landing 4 is a place that communicates with the hoistway 3. At each landing 4, a landing door 5 is provided. The landing door 5 is a door that partitions the landing 4 and the hoistway 3.

[0015] The elevator 1 includes a hoist 6, a main rope 7, a car 8, a counterweight 9, and a control panel 10. The hoist 6 includes a motor that generates a driving torque and a sheave that rotates by the driving torque generated by the motor. The hoist 6 is disposed, for example, at the upper or lower part of the hoistway 3. The main rope 7 is wound around the sheave of the hoist 6. The main rope 7 supports the load of the car 8 on one side of the sheave of the hoist 6. The main rope 7 supports the load of the counterweight 9 on the other side of the sheave of the hoist 6. When the sheave of the hoist 6 rotates, the main rope 7 moves so that either one side of the sheave of the hoist 6 is wound up. The car 8 and the counterweight 9 are disposed in the hoistway 3. When the main rope 7 is moved by the hoist 6, the car 8 and the counterweight 9 travel in opposite directions in the vertical direction. The car 8 is a device that transports passengers or the like riding therein between a plurality of floors by traveling up and down in the hoistway 3. The car 8 includes a car door 11. The car door 11 is a door that partitions the inside and outside of the car 8. When the car 8 arrives at any floor, the car door 11 is interlocked with the landing door 5 provided at the landing 4 of the floor so that passengers can get on and off. The counterweight 9 is a device provided to balance the loads applied to both sides of the sheave of the hoist 6 with the car 8. The control panel 10 is a device that controls the travel of the car 8 through the control of the hoist 6 and the like. The control panel 10 is connected to the hoist 6, the car 8, and the like so as to be able to acquire operation information including the position of the car 8 and the like. The control panel 10 is disposed, for example, at the upper or lower part of the hoistway 3. When a machine room of the elevator 1 or the like is provided above the hoistway 3, the hoist 6 and the control panel 10 may be disposed in the machine room.

[0016] For elevator 1, management system 12 is applied. The management system 12 is a system that manages elevator 1 by monitoring its operating status, etc. The management system 12 may be an external system of the elevator that is additionally applied to the existing elevator 1, or may be an internal system that is part of the elevator system including elevator 1. The management system 12 includes on-site equipment 13, a management device 14, and a monitoring terminal 15.

[0017] The on-site equipment 13 is equipment installed in building 2 where elevator 1 is applied. The on-site equipment 13 is, for example, installed in elevator 1 applied to building 2. The on-site equipment 13 includes car equipment 16 and edge equipment 17. The car equipment 16 is installed in car 8. The car equipment 16 moves up and down in hoistway 3 as car 8 travels. In this example, the car equipment 16 is arranged at the upper part of car 8. The car equipment 16 is equipment that acquires information such as the travel of car 8. The edge equipment 17 is communicably connected to the car equipment 16. The edge equipment 17 is arranged, for example, in hoistway 3, etc. The edge equipment 17 may be arranged in other locations of building 2, etc. The edge equipment 17 may be provided in car 8 as an integrated device with the car equipment 16, for example. The edge equipment 17 collects the information acquired by the car equipment 16. The edge equipment 17 is connected to the communication network 18 so that the collected information can be communicated. The communication network 18 includes, for example, the Internet, a telephone line network, or an optical communication line network, etc. The communication network 18 may include a local network such as a LAN (Local Area Network) within building 2. The communication network 18 may include a wired or wireless intranet, etc.

[0018] The management device 14 is a device that performs processes such as information management in the management system 12. The management device 14 is arranged, for example, in an information center or the like. The information center is a base for collecting and managing information of the elevator 1. In this example, the information center is located at a remote location from the building 2. The management device 14 communicates with external devices via, for example, the communication network 18 or the like. The management device 14 is, for example, a computer system composed of one or more server devices or the like, or a device including the system. The plurality of server devices constituting the management device 14 may be arranged at different locations. At this time, the plurality of server devices communicate information with each other through, for example, the communication network 18. Part or all of the functions of the management device 14 may be implemented, for example, on a virtual machine on a cloud service, or may be implemented by processing or storage resources on a cloud service or the like.

[0019] The management device 14 communicates with the edge device 17 through, for example, the communication network 18 or the like. The management device 14 collects information from the external service 19 through, for example, the communication network 18 or the like. The external service 19 is an information providing service outside the management system 12 or the like. The external service 19 is, for example, a weather information providing service that distributes weather information. The weather information providing service is a system operated by, for example, a public institution that handles weather information such as the Japan Meteorological Agency in Japan, a private company such as a weather information company, or other institutions. The management device 14 acquires weather data from the external service 19. The weather data includes information such as the atmospheric pressure at the location where the building 2 is provided. The atmospheric pressure in the weather data may be the surface atmospheric pressure at the location where the building 2 is provided, or may be the sea-level atmospheric pressure converted to the height of the sea surface or the like. The atmospheric pressure in the weather data may be the atmospheric pressure at a representative point in the area where the building 2 is provided, or may be the average atmospheric pressure in the area, or may be the atmospheric pressure at a grid point in a region including the area.

[0020] The monitoring terminal 15 is an information processing terminal device that monitors the operating status of the elevator 1, etc. The monitoring terminal 15 is provided, for example, in an information center or the like. The monitoring terminal 15 is a device used by an operator, who is a person engaged in business at an information center, for example, to monitor the operating status of the elevator 1, etc.

[0021] FIG. 2 is a block diagram showing the configuration of the elevator management system 12 according to Embodiment 1.

[0022] The local device 13 includes a pressure sensor 20, an acceleration sensor 21, a first communication unit 22, a first storage unit 23, a position calculation unit 24, and a detection unit 25.

[0023] The pressure sensor 20 is a sensor that measures the air pressure at its own position. The pressure sensor 20 is provided in the car device 16. Since the pressure sensor 20 moves up and down in the hoistway 3 as the car 8 travels, the air pressure measured by the pressure sensor 20 reflects the information on the position of the car 8.

[0024] The acceleration sensor 21 is a sensor that measures the acceleration of its own motion. The acceleration sensor 21 is provided in the car device 16. In this example, the acceleration sensor 21 measures at least the acceleration in the vertical direction. Since the acceleration sensor 21 moves up and down in the hoistway 3 as the car 8 travels, the acceleration measured by the acceleration sensor 21 reflects the travel information such as the acceleration, speed, and position of the car 8.

[0025] The first communication unit 22 is a part responsible for communication with the outside of the local device 13. The first communication unit 22 is provided, for example, in the edge device 17. The first communication unit 22 communicates information with the management device 14, for example, through a communication network 18 or the like.

[0026] The first storage unit 23 is a part equipped with a function of storing information. The first storage unit 23 is provided, for example, in the edge device 17. The first storage unit 23 stores, for example, information such as the information communicated by the first communication unit 22 with the management device 14. The first storage unit 23 stores information such as the measured values of the pressure sensor 20 and the acceleration sensor 21. The first storage unit 23 stores information such as the reference pressure previously measured by the pressure sensor 20. The reference pressure is the pressure measured by the pressure sensor 20 when the car 8 is on the ground floor of the building 2. The ground floor is any one of a plurality of floors preset in the building 2. The ground floor is, for example, the entrance floor where the entrance of the building 2 is provided, or the main floor, etc.

[0027] The position calculation unit 24 is a part equipped with a function of calculating the vertical position of the car 8. The position calculation unit 24 is provided, for example, in the edge device 17. The position calculation unit 24 calculates the position of the car 8 based on, for example, the measured values of the pressure sensor 20 and the acceleration sensor 21. In this example, the position calculation unit 24 calculates the position of the car 8 based on the information acquired by the local device 13 without relying on the information from the control panel 10 of the elevator 1. The position calculation unit 24 calculates the position of the car 8 based on, for example, the difference between the pressure measured by the pressure sensor 20 when the car 8 stops and the reference pressure stored in the first storage unit 23. Here, the difference between the two pressures is represented by, for example, the ratio or difference of the two pressures. The position calculation unit 24 may detect that the car 8 has stopped based on, for example, the acceleration measured by the acceleration sensor 21, or may detect that the car 8 has stopped because the pressure measured by the pressure sensor 20 takes a constant value. The position calculation unit 24 may calculate the position of the car 8, for example, by integrating the measured value of the acceleration sensor 21 over time. The position calculation unit 24 may calculate the position of the car 8 based on the measured value of the pressure sensor 20 and the position of the car 8 based on the measured value of the acceleration sensor 21 independently. The position of the car 8 calculated by the position calculation unit 24 is, for example, any one of a plurality of floors in the building 2.

[0028] The detection unit 25 is a part equipped with a function to detect an abnormal stop of the car 8. The detection unit 25 is provided, for example, in the edge device 17. The abnormal stop of the car 8 includes, for example, an abnormality in the stop sequence when the car 8 stops, or an abnormality in the stop position where the car 8 has stopped. The detection unit 25 detects an abnormality in the stop sequence, for example, when the change in the measured value of the acceleration sensor 21 deviates from a preset acceleration profile. The detection unit 25 detects an abnormality in the stop position based on, for example, the atmospheric pressure measured by the atmospheric pressure sensor 20 when the car 8 stops. Note that the detection unit 25 may detect an abnormal stop of the car 8 based on an external signal output when a device of the elevator 1 such as the control panel 10 is abnormal. The abnormality detected by the detection unit 25 is reported to the management device 14 by the first communication unit 22.

[0029] The management device 14 includes a second communication unit 26, a second storage unit 27, a determination unit 28, and a generation unit 29.

[0030] The second communication unit 26 is a part responsible for communication with the outside of the management device 14. The second communication unit 26 communicates information with, for example, the on-site device 13 through the communication network 18 or the like. The second communication unit 26 receives notifications from the on-site device 13 at preset timings. The notifications by the on-site device 13 may be regular ones performed at preset intervals, or may be irregular ones performed when preset events occur. The notifications by the on-site device 13 include, for example, regular communications for life and death monitoring, notifications informing of the startup of the on-site device 13, or alarms informing of abnormalities detected by the detection unit 25. The notifications by the on-site device 13 may include information such as reference atmospheric pressure used by the position calculation unit 24 for calculating the position of the car 8. The second communication unit 26 communicates information with, for example, the external service 19 through the communication network 18 or the like. The second communication unit 26 acquires meteorological data including the atmospheric pressure at the location where the building 2 is provided from the external service 19. The second communication unit 26 acquires the meteorological data at preset timings. The acquisition of the meteorological data from the external service 19 may be regular ones performed at preset intervals, or may be irregular ones performed when preset events occur. The second communication unit 26 communicates information with the monitoring terminal 15. The second communication unit 26, for example, notifies the monitoring terminal 15 of the information of the alarm when receiving the alarm from the on-site device 13. An operator who has received the alarm through the monitoring terminal 15 dispatches, for example, a maintenance worker to the building 2 where the elevator 1 is installed.

[0031] The second storage unit 27 is a part equipped with a function of storing information. The second storage unit 27 stores, for example, information such as information communicated by the second communication unit 26 between the local device 13 and the external service 19. The second storage unit 27 stores, for example, information such as the reference atmospheric pressure included in the notification by the local device 13. The second storage unit 27 stores, for example, information such as meteorological data acquired from the external service 19. When the meteorological data includes information on the atmospheric pressure at a plurality of locations, the second storage unit 27 stores, for example, the atmospheric pressure at the location closest to the location where the building 2 is provided in association with the building 2. When the meteorological data represents current information such as an actual measured value of the atmospheric pressure, the second storage unit 27 may update and store the atmospheric pressure information stored in association with the building 2 each time the meteorological data is acquired. When the meteorological data represents information at one or more future time points such as a forecast value of the atmospheric pressure, the second storage unit 27 may store the atmospheric pressure at the time point closest to the current time in association with the building 2.

[0032] The determination unit 28 is a part equipped with a function of determining whether the atmospheric pressure of the meteorological data acquired from the external service 19 and the atmospheric pressure measured by the atmospheric pressure sensor 20 are consistent. The atmospheric pressure measured by the atmospheric pressure sensor 20 is, for example, the reference atmospheric pressure or the like. The determination unit 28 determines, for example, whether the atmospheric pressure of the meteorological data and the reference atmospheric pressure included in the notification by the local device 13 are consistent. The determination unit 28 determines the consistency, for example, based on whether the difference between the atmospheric pressure of the meteorological data and the reference atmospheric pressure is outside a preset error range. When the atmospheric pressure of the meteorological data and the reference atmospheric pressure are not consistent, the position of the basket 8 calculated based on the atmospheric pressure may not be accurate.

[0033] The generation unit 29 is a part equipped with a function of generating correction information used for correcting the calculation of the position of the car 8 by the position calculation unit 24. The correction information is generated based on, for example, the atmospheric pressure of the meteorological data acquired from the external service 19. The correction information includes, for example, the atmospheric pressure of the meteorological data and a correction coefficient. The atmospheric pressure of the meteorological data is used, for example, for updating the reference atmospheric pressure. The correction coefficient is used for correction such as the atmospheric pressure measured by the atmospheric pressure sensor 20 on each floor or the difference between the atmospheric pressure and the reference atmospheric pressure. The correction information is transmitted to the on-site device 13 through the second communication unit 26.

[0034] FIG. 3 is a diagram showing an example of information used for calculating the position of the car 8, which is managed in the management system 12.

[0035] In the on-site device 13, the first storage unit 23 stores information for specifying the ground floor. In this example, the ground floor is set to the first floor. The first storage unit 23 stores the reference atmospheric pressure. The first storage unit 23 stores the correction coefficient. If the first storage unit 23 is not equipped with a function of retaining information when the power of the on-site device 13 is turned off, or if the measurement of the reference atmospheric pressure has not been performed yet, etc., initial values may be set in advance for the reference atmospheric pressure and the correction coefficient in the on-site device 13.

[0036] The reference atmospheric pressure is measured by the atmospheric pressure sensor 20, for example, during the learning operation. The learning operation is an operation for setting the management system 12, which is performed when starting the operation of the management system 12 in the elevator 1. The learning operation is performed based on, for example, the operation of a maintenance staff. The maintenance staff stores the atmospheric pressure measured by the atmospheric pressure sensor 20 when the car 8 stops at the ground floor during the learning operation, as the reference atmospheric pressure, in the first storage unit 23. During the learning operation, the maintenance staff stops the car 8 at each floor, for example. The maintenance staff stores the atmospheric pressure measured by the atmospheric pressure sensor 20 when the car 8 stops at each floor during the learning operation, in association with the floor where it stops, in the first storage unit 23. In this example, the first storage unit 23 stores the measured values of the atmospheric pressure stored in association with each floor and the reference atmospheric pressure as separate information.

[0037] In this example, the position calculation unit 24 corrects the ratio of the atmospheric pressure measured by the atmospheric pressure sensor 20 and the reference atmospheric pressure by multiplying it by a correction coefficient, and then further multiplies it by a conversion coefficient to calculate the height of the car 8 in the hoistway 3. The conversion coefficient is set based on, for example, a height measurement formula. The position calculation unit 24 may calculate the height of the car 8 without using the correction coefficient. The position calculation unit 24 reads the reference atmospheric pressure and the correction coefficient from the first storage unit 23 and calculates the height of the car 8. The position calculation unit 24 compares the preset height for each floor with the height of the car 8 calculated based on the atmospheric pressure, and calculates the floor with the height closest to the height of the car 8 calculated based on the atmospheric pressure as the position of the car 8. The height of each floor is preset by a maintenance staff during, for example, learning operation. The position calculation unit 24 may calculate the height of the car 8 in the hoistway 3 based on the atmospheric pressure measured by the atmospheric pressure sensor 20 and the reference atmospheric pressure during learning operation. At this time, the maintenance staff associates the height calculated by the position calculation unit 24 with each floor and stores it in the first storage unit 23. The maintenance staff may store the height of each floor in the first storage unit 23 based on the design value or other information.

[0038] During normal operation, the position calculation unit 24 acquires the atmospheric pressure measured by the atmospheric pressure sensor 20 when the car 8 stops. The position calculation unit 24 uses the atmospheric pressure measured at this time and information such as the reference atmospheric pressure and the correction coefficient stored in the first storage unit 23 to calculate the floor where the car 8 has stopped as the position of the car 8. The first storage unit 23 updates and stores the measured value of the atmospheric pressure stored in association with the calculated floor to the measured value of the atmospheric pressure used by the position calculation unit 24 for calculating the position of the car 8.

[0039] When starting up, for example, at the first startup, after a restart during maintenance work, or after a power outage recovery, the first communication unit 22 transmits a notification to the second communication unit 26 of the management device 14 to notify the startup of the on-site device 13. The notification by the on-site device 13 includes the information of the reference air pressure stored in the first storage unit 23. The notification by the on-site device 13 may include the information of the air pressure measured on each floor stored in the first storage unit 23. The said notification may include the information of the air pressure on all floors, or may include the information of the air pressure on some floors including the ground floor. The notification by the on-site device 13 may include the information of the air pressure measured by the air pressure sensor 20 at the time of notification. Also, the notification by the on-site device 13 may include the information of the position of the basket 8 calculated by the position calculation unit 24 based on the measured value of the air pressure. The first communication unit 22 of the on-site device 13 may also send a notification to the management device 14 including the same information as when starting up in regular communication for life and death monitoring and the like.

[0040] When the basket 8 stops, the detection unit 25 determines whether the height of the basket 8 in the hoistway 3 calculated by the position calculation unit 24 based on the air pressure measured by the air pressure sensor 20 is within the preset stop range for each floor. When the height of the basket 8 is not within the stop range of any floor, the detection unit 25 detects an abnormal stop of the basket 8. Note that the detection unit 25 may detect an abnormal stop after verifying the accuracy of the air pressure information. For example, when the height of the basket 8 is not within the stop range of any floor and the difference between the reference air pressure and the air pressure on the ground floor stored in the first storage unit 23 is within the preset second error range, the detection unit 25 detects an abnormal stop of the basket 8. On the other hand, even when the height of the basket 8 is outside the stop range, if the difference between the reference air pressure and the air pressure on the ground floor stored in the first storage unit 23 is outside the second error range, the detection unit 25 may hold off on detecting an abnormal stop on the grounds that the air pressure information may not be accurate. Note that even in this case, the detection unit 25 does not hold off on detecting an abnormal stop based on information other than air pressure, such as the acceleration measured by the acceleration sensor 21 or an external signal from the control panel 10.

[0041] When the detection unit 25 detects an abnormal stop of the basket 8, the first communication unit 22 transmits a report to the management device 14. In this example, the report includes the same information as the notification at the time of activation of the local device 13. Further, the report may further include information indicating the abnormality detected by the detection unit 25.

[0042] In the management device 14, when the second storage unit 27 receives a notification such as activation, life and death monitoring, or abnormality detection from the local device 13, it stores the information included in the notification. When the determination unit 28 receives a notification from the local device 13, it determines whether the difference between the atmospheric pressure of the weather data acquired in advance from the external service 19 and the reference atmospheric pressure included in the notification from the local device 13 is outside a preset first error range. The first error range may be set with a certain margin so as to allow a difference in atmospheric pressure due to, for example, the difference in height between the point corresponding to the atmospheric pressure in the weather data and the height of the ground floor of the building 2. When the difference between the atmospheric pressure of the weather data and the reference atmospheric pressure is outside the first error range, the determination unit 28 determines that the weather data and the reference atmospheric pressure do not match. On the other hand, when the difference between the atmospheric pressure of the weather data and the reference atmospheric pressure is within the first error range, the determination unit 28 determines that the weather data and the reference atmospheric pressure match.

[0043] When the determination unit 28 determines that, for example, the meteorological data and the reference atmospheric pressure do not match, the generation unit 29 generates correction information. The correction information includes the atmospheric pressure of the meteorological data and a correction coefficient. The generation unit 29 calculates the correction coefficient so as to improve the accuracy of calculating the position of the cage 8 by taking into account the unique conditions of the building 2 and the like. The correction coefficient is calculated based on, for example, experiments and simulations considering the conditions of the building 2, and machine learning or other preset models using historical information in other buildings with similar conditions. The generation unit 29 may calculate the correction coefficient using information such as the atmospheric pressure and temperature of the meteorological data obtained from the external service 19. The generation unit 29 calculates the correction coefficient as, for example, a tuning parameter for improving the accuracy of calculating the position of the cage 8. Note that the generation unit 29 may generate the correction information regardless of the determination by the determination unit 28, for example, when receiving a startup notification from the local device 13. The correction information generated by the generation unit 29 is transmitted to the first communication unit 22 of the local device 13 through the second communication unit 26.

[0044] When there is a report when the detection unit 25 of the on-site device 13 detects an abnormal stop of the car 8, the determination unit 28 may determine the validity of the report. For example, the determination unit 28 determines whether the difference between the atmospheric pressure in the meteorological data and the atmospheric pressure measured on the ground floor stored in the first storage unit 23 included in the report is outside a preset third error range. The third error range may be set with a certain margin so as to allow, for example, the difference in atmospheric pressure due to the difference in height between the point corresponding to the atmospheric pressure in the meteorological data and the height of the ground floor of the building 2. The third error range may be the same as or different from the first error range. When the difference between the atmospheric pressure in the meteorological data and the atmospheric pressure measured on the ground floor is outside the third error range, the determination unit 28 determines that these atmospheric pressures do not match. When the determination unit 28 determines that these atmospheric pressures do not match, it determines that the report from the on-site device 13 is a false report and does not notify the monitoring terminal 15 of the information of the report. When the determination unit 28 determines that the report from the on-site device 13 is a false report, the generation unit 29 generates correction information in the same manner as when the determination unit 28 determines that the meteorological data and the reference atmospheric pressure do not match. The correction information generated by the generation unit 29 is transmitted to the first communication unit 22 of the on-site device 13 through the second communication unit 26. On the other hand, when the difference between the atmospheric pressure in the meteorological data and the atmospheric pressure measured on the ground floor is within the third error range, the determination unit 28 determines that these atmospheric pressures match. When the determination unit 28 determines that these atmospheric pressures match, it determines that the report from the on-site device 13 is not a false report and notifies the monitoring terminal 15 of the information of the report through the second communication unit 26. Note that the determination unit 28 may also determine whether the report is a false report by determining whether the atmospheric pressure in the meteorological data and the reference atmospheric pressure included in the report from the on-site device 13 match based on the first error range or the like.

[0045] In the on-site device 13, the first storage unit 23 updates the stored reference atmospheric pressure according to the atmospheric pressure in the meteorological data included in the correction information transmitted by the management device 14. Further, the first storage unit 23 updates the stored correction coefficient according to the correction coefficient included in the correction information transmitted by the management device 14.

[0046] Next, an example of the operation of the management system 12 will be described with reference to FIG. 4. FIG. 4 is a flowchart showing an example of the operation of the management system 12 according to Embodiment 1.

[0047] The management device 14 acquires weather data from the external service 19 through the second communication unit 26 at a preset acquisition timing (S1). The acquisition timing is, for example, a preset regular timing such as once or multiple times a day.

[0048] The management device 14 updates information such as the atmospheric pressure of the weather data stored in the second storage unit 27 based on the information acquired from the external service 19 (S2).

[0049] The local device 13 notifies the second communication unit 26 of the management device 14 at a preset notification timing (S3). The notification timing from the local device 13 includes, for example, the timing of life and death monitoring or other regular timings, the startup time of the local device 13, or when an abnormality such as an abnormal stop of the car 8 is detected by the local device 13. The notification by the local device 13 includes the reference atmospheric pressure stored in the first storage unit 23, the information on the atmospheric pressure measured by the atmospheric pressure sensor 20 at the time of notification, and the information on the position of the car 8 calculated by the position calculation unit 24 based on the measured value of the atmospheric pressure.

[0050] The management device 14 updates information such as the reference atmospheric pressure used by the local device 13 for calculating the position of the car 8, which is stored in the second storage unit 27, based on the information included in the notification received from the local device 13 (S4).

[0051] When receiving a notification from the local device 13, the management device 14 determines whether the atmospheric pressure of the weather data matches the reference atmospheric pressure included in the notification (S5). The determination is made by the determination unit 28 based on whether the difference between the atmospheric pressure of the weather data and the reference atmospheric pressure is outside the first error range.

[0052] When the atmospheric pressure and the reference atmospheric pressure of the meteorological data do not match, the management device 14 generates correction information (S6). The correction information is generated by the generation unit 29 based on the meteorological data so as to include one or both of the atmospheric pressure of the meteorological data and the correction coefficient. The management device 14 transmits the correction information generated by the generation unit 29 to the second communication unit 26 of the on-site device 13 through the first communication unit 22.

[0053] The on-site device 13 updates information such as the reference atmospheric pressure and the correction coefficient stored in the first storage unit 23 according to the information included in the correction information received from the management device 14 (S7).

[0054] As described above, the management system 12 according to the first embodiment includes the on-site device 13 and the management device 14. The on-site device 13 is provided in the building 2 to which the elevator 1 is applied. The on-site device 13 includes an atmospheric pressure sensor 20, a first storage unit 23, a position calculation unit 24, and a first communication unit 22. The atmospheric pressure sensor 20 is provided in the car 8. The atmospheric pressure sensor 20 measures the atmospheric pressure at its own position when the car 8 stops. The first storage unit 23 stores the atmospheric pressure measured by the atmospheric pressure sensor 20 when the car 8 is at the ground floor of the building 2 as the reference atmospheric pressure. The position calculation unit 24 calculates the position of the car 8 based on the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor 20. The first communication unit 22 transmits the position of the car 8 calculated by the position calculation unit 24 from the atmospheric pressure measured by the atmospheric pressure sensor 20 and the reference atmospheric pressure stored in the first storage unit 23 to the management device 14. The management device 14 includes a second communication unit 26 and a determination unit 28. The second communication unit 26 acquires meteorological data including the atmospheric pressure at the location where the building 2 is provided from the external service 19. The second communication unit 26 acquires the position of the car 8 and the reference atmospheric pressure calculated from the atmospheric pressure measured by the atmospheric pressure sensor 20 from the first communication unit 22. The determination unit 28 determines whether the difference between the atmospheric pressure of the meteorological data acquired from the external service 19 and the reference atmospheric pressure acquired from the first communication unit 22 is outside a preset first error range.

[0055] With such a configuration, the reference air pressure measured by the air pressure sensor 20 of the local device 13 is verified by the air pressure in the weather data obtained from the external service 19. Therefore, the accuracy of the position of the basket 8 calculated based on the air pressure measured by the air pressure sensor 20 of the local device 13 is verified in the management device 14. In addition, since the management device 14 uses the weather data of the external service 19 for verification, when the calculation result of the position of the basket 8 changes, the management device 14 can determine whether the change is due to the actual change in the position of the basket 8 or due to the change in air pressure caused by the weather. Further, since the position of the basket 8 is calculated using the air pressure sensor 20 so as to cope with changes in the surrounding environment such as the weather, it becomes possible to monitor the position of the basket 8 regardless of the information from the control panel 10 of the elevator 1. Therefore, even immediately after the local device 13 is started up, the position of the basket 8 can be accurately grasped based on the air pressure. Also, for example, when applying the management system 12 to an existing elevator 1, it is possible to grasp the position of the basket 8 even when it is difficult to obtain information from the control panel 10 of the elevator 1.

[0056] In addition, the local device 13 includes an acceleration sensor 21. The acceleration sensor 21 is provided in the basket 8. The acceleration sensor 21 measures the acceleration of the basket 8 in the vertical direction. The position calculation unit 24 calculates the position of the basket 8 based on the acceleration measured by the acceleration sensor 21. By using two types of methods, acceleration and air pressure, the local device 13 can calculate the position of the basket 8 more accurately. The local device 13 can grasp the position of the basket 8 even when an abnormality occurs in either the acceleration sensor 21 or the air pressure sensor 20.

[0057] In addition, the management device 14 includes a second storage unit 27. When the on-site device 13 is started up, the first communication unit 22 transmits the reference air pressure stored in the first storage unit 23 to the management device 14. The second storage unit 27 stores the reference air pressure acquired by the second communication unit 26 from the first communication unit 22. Also, when the on-site device 13 is started up, the second communication unit 26 transmits the air pressure of the weather data acquired from the external service 19 to the on-site device 13. The first storage unit 23 updates and stores the reference air pressure based on the air pressure information transmitted from the second communication unit 26. In this way, since the information on the reference air pressure is exchanged between the on-site device 13 and the management device 14 when the on-site device 13 is started up, the on-site device 13 can start operating immediately after startup without re-measuring the reference air pressure.

[0058] In addition, the on-site device 13 includes a detection unit 25. The detection unit 25 detects an abnormal stop of the car 8 based on the air pressure measured by the air pressure sensor 20 when the car 8 stops. When the detection unit 25 detects an abnormal stop, the first communication unit 22 sends an alarm to the management device 14. When the car 8 stops at the ground floor, the first storage unit 23 updates and stores the air pressure of the ground floor. The detection unit 25 holds off on detecting an abnormal stop when the difference between the reference air pressure and the air pressure of the ground floor stored in the first storage unit 23 is outside a preset second error range. In this way, the on-site device 13 verifies the accuracy of the air pressure information based on the latest measured values of the reference air pressure and the air pressure of the ground floor used for calculating the car 8, and then detects an abnormal stop of the car 8. This reduces the false detection of an abnormal stop of the car 8.

[0059] In addition, when the detection unit 25 detects an abnormal stop and reports it, the first communication unit 22 transmits the atmospheric pressure on the ground floor stored in the first storage unit 23 to the management device 14. When the difference between the atmospheric pressure in the weather data acquired from the external service 19 and the atmospheric pressure on the ground floor acquired from the first communication unit 22 at the time of the report is outside a preset third error range, the determination unit 28 determines that the report is a false alarm. In this way, when receiving a report of an abnormal stop, the management device 14 verifies the atmospheric pressure measured by the atmospheric pressure sensor 20 with the atmospheric pressure in the weather data, thereby determining the validity of the report. As a result, even if the abnormal stop of the car 8 is misdetected, it is treated as a false alarm, so that unnecessary dispatch of maintenance personnel to the building 2 where the elevator 1 is installed is not performed.

[0060] Further, the management device 14 includes a generation unit 29. The generation unit 29 generates correction information based on the atmospheric pressure in the weather data acquired from the external service 19. The correction information is used to correct the calculation of the position of the car 8 by the position calculation unit 24. The correction information includes the atmospheric pressure in the weather data acquired from the external service 19. The second communication unit 26 transmits the correction information generated by the generation unit 29 to the first communication unit 22. The first storage unit 23 updates the reference atmospheric pressure stored therein according to the atmospheric pressure in the weather data included in the correction information transmitted from the second communication unit 26 to the first communication unit 22. Further, the correction information includes a correction coefficient used to correct the atmospheric pressure measured by the atmospheric pressure sensor 20. The first storage unit 23 stores the correction coefficient included in the correction information transmitted from the second communication unit 26 to the first communication unit 22. The position calculation unit 24 calculates the position of the car 8 after correcting the difference between the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor 20 with the correction coefficient stored in the first storage unit 23. In this way, the reference atmospheric pressure and the like used by the on-site device 13 for calculating the car 8 are corrected by the correction information based on the weather data acquired from the external service 19. As a result, the position of the car 8 calculated based on the atmospheric pressure becomes more accurate, so that the misdetection of the abnormal stop of the car 8 is reduced.

[0061] Note that the first storage unit 23 may store the measured value of the atmospheric pressure associated with the ground floor as the same information as the reference atmospheric pressure. That is, the on-site device 13 may treat the measured value of the atmospheric pressure itself stored by the first storage unit 23 in association with the ground floor as the reference atmospheric pressure used for calculating the position of the car 8 or the like. At this time, when the car 8 stops at the ground floor, the first storage unit 23 updates and stores the reference atmospheric pressure according to the atmospheric pressure measured by the atmospheric pressure sensor 20. In this way, since the reference atmospheric pressure is updated by the latest measured value of the atmospheric pressure on the ground floor, the position of the car 8 calculated based on the atmospheric pressure becomes more accurate.

[0062] Subsequently, an example of the hardware configuration of the management system 12 will be described with reference to FIG. 5. FIG. 5 is a hardware configuration diagram of the main part of the management system 12 according to the first embodiment.

[0063] The main part of the management system 12 includes, for example, an edge device 17 and a management device 14. Some or all of the functions of the management system 12 can be realized by a processing circuit. The processing circuit includes at least one processor 100a and at least one memory 100b. The processing circuit may include at least one dedicated hardware together with the processor 100a and the memory 100b, or as an alternative to them.

[0064] When the processing circuit includes the processor 100a and the memory 100b, each function of the management system 12 is realized by software, firmware, or a combination of software and firmware. At least one of the software and the firmware is described as a program. The program is stored in the memory 100b. The processor 100a reads and executes the program stored in the memory 100b to realize each function of the management system 12. The program may be a program package including a plurality of sub-programs, modules, or libraries. The program is sometimes called a program product.

[0065] Processor 100a is also referred to as a CPU (Central Processing Unit), a processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. Memory 100b is composed of, for example, non-volatile or volatile semiconductor memories such as RAM, ROM, flash memory, EPROM, and EEPROM.

[0066] When the processing circuit includes dedicated hardware, the processing circuit is realized by, for example, a single circuit, a composite circuit, a programmed processor, a parallel-programmed processor, an ASIC, an FPGA, or a combination thereof.

[0067] Each function of management system 12 can be realized by a processing circuit respectively. Alternatively, each function of management system 12 can also be realized collectively by a processing circuit. Regarding each function of management system 12, a part may be realized by dedicated hardware and the other part may be realized by software or firmware. Thus, the processing circuit realizes each function of management system 12 by dedicated hardware, software, firmware, or a combination thereof.

[0068] Embodiment 2. In Embodiment 2, differences from the examples disclosed in Embodiment 1 will be described in particular detail. For features not described in Embodiment 2, any features of the examples disclosed in Embodiment 1 may be adopted.

[0069] FIG. 6 is a flowchart showing an example of the operation of management system 12 according to Embodiment 2.

[0070] The management system 12 according to Embodiment 2 performs the same processes as the management system 12 according to Embodiment 1 in steps S1, S2, S6, and S7. In step S5a after step S2, the determination unit 28 of the management device 14 determines whether the reference atmospheric pressure included in the latest notification received from the local device 13 matches the atmospheric pressure of the meteorological data even when no notification has been received from the local device 13. The determination unit 28 of the management device 14 determines the consistency of the atmospheric pressure, for example, when acquiring meteorological data from the external service 19. As a result, since the consistency of the atmospheric pressure is determined based on the latest meteorological data, the position of the cage 8 calculated based on the atmospheric pressure becomes more accurate.

[0071] Summarizing the above description, the possible configurations of the technology according to the present disclosure include the following configurations shown as appendices. (Appendix 1) Local equipment provided in a building to which an elevator including a cage traveling in the vertical direction is applied, A management device that communicates with the local device, Comprising: The local device is: An atmospheric pressure sensor provided in the cage for measuring the atmospheric pressure at its own position when the cage stops; A first storage unit that stores, as a reference atmospheric pressure, the atmospheric pressure measured by the atmospheric pressure sensor when the cage is at a preset ground floor of the building; A position calculation unit that calculates the position of the cage based on the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor; A first communication unit that transmits the position of the cage calculated by the position calculation unit from the atmospheric pressure measured by the atmospheric pressure sensor and the reference atmospheric pressure stored in the first storage unit to the management device; Comprising: The management device is: A second communication unit that acquires meteorological data including the atmospheric pressure at the location where the building is provided from an external service, and acquires the position of the cage calculated from the atmospheric pressure measured by the atmospheric pressure sensor and the reference atmospheric pressure from the first communication unit; A determination unit that determines whether the difference between the atmospheric pressure of the weather data acquired from the external service and the reference atmospheric pressure acquired from the first communication unit is outside a preset first error range; Comprising An elevator management system. (Appendix 2) The on-site device Is provided in the car and includes an acceleration sensor that measures the acceleration of the car in the vertical direction Comprising The position calculation unit calculates the position of the car based on the acceleration measured by the acceleration sensor. The elevator management system according to Appendix 1. (Appendix 3) The management device Comprises a second storage unit that stores the reference atmospheric pressure acquired by the second communication unit from the first communication unit Comprising When the on-site device is started, the first communication unit transmits the reference atmospheric pressure stored in the first storage unit to the management device. The second communication unit acquires the reference atmospheric pressure transmitted from the first communication unit. The elevator management system according to Appendix 1 or Appendix 2. (Appendix 4) When the on-site device is started, the second communication unit transmits the atmospheric pressure of the weather data acquired from the external service to the on-site device. The first storage unit updates and stores the reference atmospheric pressure with the atmospheric pressure information transmitted from the second communication unit. The elevator management system according to Appendix 3. (Appendix 5) The on-site device A detection unit that detects an abnormal stop of the car based on the atmospheric pressure measured by the atmospheric pressure sensor when the car stops Comprising When the detection unit detects an abnormal stop, the first communication unit reports it to the management device. When the car stops at the ground floor, the first storage unit updates and stores the atmospheric pressure of the ground floor. When the difference between the reference atmospheric pressure and the atmospheric pressure on the ground floor stored in the first storage unit is outside a preset second error range, the detection unit suspends the detection of an abnormal stop. The elevator management system according to any one of Appendices 1 to 4. (Appendix 6) When reporting an alarm when the detection unit detects an abnormal stop, the first communication unit transmits the atmospheric pressure on the ground floor stored in the first storage unit to the management device. When the difference between the atmospheric pressure of the weather data acquired from the external service and the atmospheric pressure on the ground floor acquired from the first communication unit at the time of the alarm is outside a preset third error range, the determination unit determines that the alarm is a false alarm. The elevator management system according to Appendix 5. (Appendix 7) The management device A generation unit that generates correction information used for correcting the calculation of the position of the car by the position calculation unit based on the atmospheric pressure of the weather data acquired from the external service. and includes The correction information includes the atmospheric pressure of the weather data acquired from the external service. The second communication unit transmits the correction information generated by the generation unit to the first communication unit. The first storage unit updates the stored reference atmospheric pressure according to the atmospheric pressure of the weather data included in the correction information transmitted from the second communication unit to the first communication unit. The elevator management system according to any one of Appendices 1 to 6. (Appendix 8) The correction information includes a correction coefficient used for correcting the atmospheric pressure measured by the atmospheric pressure sensor. The first storage unit stores the correction coefficient included in the correction information transmitted from the second communication unit to the first communication unit. The position calculation unit calculates the position of the car after correcting the difference between the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor with the correction coefficient stored in the first storage unit. The elevator management system according to Appendix 7. (Appendix 9) When the car stops at the ground floor, the first memory unit updates and stores the reference atmospheric pressure. The elevator management system according to any one of Appendices 1 to 4. (Appendix 10) A management device that communicates with on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied. The on-site equipment has a barometric pressure sensor provided in the car that measures the barometric pressure at its own position when the car stops. When the car is at the preset ground floor of the building, the on-site equipment stores the barometric pressure measured by the barometric pressure sensor as the reference atmospheric pressure. The on-site equipment calculates the position of the car based on the reference atmospheric pressure and the barometric pressure measured by the barometric pressure sensor. The management device A second communication unit that acquires meteorological data including the barometric pressure at the location where the building is provided from an external service, and acquires the position of the car calculated from the barometric pressure measured by the barometric pressure sensor and the reference atmospheric pressure from the on-site equipment. A position calculation unit that determines whether the difference between the barometric pressure of the meteorological data acquired from the external service and the reference atmospheric pressure acquired from the on-site equipment is outside a preset first error range. Comprising Management device. (Appendix 11) An elevator management method executed by a computer that communicates with on-site equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied. The on-site equipment has a barometric pressure sensor provided in the car that measures the barometric pressure at its own position when the car stops. When the car is at the preset ground floor of the building, the on-site equipment stores the barometric pressure measured by the barometric pressure sensor as the reference atmospheric pressure. The on-site equipment calculates the position of the car based on the reference atmospheric pressure and the barometric pressure measured by the barometric pressure sensor. In the elevator management system the computer to acquire weather data including the atmospheric pressure at the location where the building is provided from an external service; acquire the position of the car and the reference atmospheric pressure calculated from the atmospheric pressure measured by the atmospheric pressure sensor from the local device; determine whether the difference between the atmospheric pressure of the weather data acquired from the external service and the reference atmospheric pressure acquired from the local device is outside a preset first error range; A management method for executing the above. (Appendix 12) A program for causing a computer that communicates with a local device provided in a building to which an elevator including a car traveling in the vertical direction is applied to execute a process, wherein the local device has an atmospheric pressure sensor provided in the car that measures the atmospheric pressure at its own position when the car stops, the local device stores, as a reference atmospheric pressure, the atmospheric pressure measured by the atmospheric pressure sensor when the car is at a preset ground floor of the building, the local device calculates the position of the car based on the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor, In the elevator management system, to the computer, acquire weather data including the atmospheric pressure at the location where the building is provided from an external service; acquire the position of the car and the reference atmospheric pressure calculated from the atmospheric pressure measured by the atmospheric pressure sensor from the local device; determine whether the difference between the atmospheric pressure of the weather data acquired from the external service and the reference atmospheric pressure acquired from the local device is outside a preset first error range; A program for causing the above to be executed.

Description of Signs

[0072] 1 Elevator, 2 Building, 3 Hoistway, 4 Landing, 5 Landing Door, 6 Hoisting Machine, 7 Main Rope, 8 Car, 9 Counterweight, 10 Control Panel, 11 Car Door, 12 Management System, 13 Local Equipment, 14 Management Device, 15 Monitoring Terminal, 16 Car Equipment, 17 Edge Equipment, 18 Communication Network, 19 External Service, 20 Air Pressure Sensor, 21 Acceleration Sensor, 22 First Communication Unit, 23 First Memory Unit, 24 Position Calculation Unit, 25 Detection Unit, 26 Second Communication Unit, 27 Second Memory Unit, 28 Judgment Unit, 29 Generation Unit, 100a Processor, 100b Memory, 200 Dedicated Hardware

Claims

1. Local equipment provided in a building to which an elevator including a car traveling in the vertical direction is applied, A management device that communicates with the local equipment, Comprising, The local equipment is, A pressure sensor provided in the car and measuring the air pressure at its own position when the car stops, A first storage unit that stores, as a reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building, A position calculation unit that calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor, A first communication unit that transmits to the management device the position of the car calculated by the position calculation unit from the air pressure measured by the pressure sensor, and the reference air pressure stored in the first storage unit, Comprising, The management device is, A second communication unit that acquires weather data including the air pressure at the location where the building is provided from an external service, and acquires the position of the car and the reference air pressure calculated from the air pressure measured by the pressure sensor from the first communication unit, A determination unit that determines whether the difference between the air pressure of the weather data acquired from the external service and the reference air pressure acquired from the first communication unit is outside a preset first error range, Comprising, An elevator management system.

2. The local equipment is, An acceleration sensor provided in the car and measuring the vertical acceleration of the car Comprising, The position calculation unit calculates the position of the car based on the acceleration measured by the acceleration sensor, The elevator management system according to claim 1.

3. The management device is, A second storage unit that stores the reference air pressure acquired by the second communication unit from the first communication unit Comprising, The first communication unit transmits the reference air pressure stored in the first storage unit to the management device when the local equipment is started, The second communication unit acquires the reference air pressure transmitted from the first communication unit, The elevator management system according to claim 1 or claim 2.

4. The second communication unit transmits the air pressure of the weather data acquired from the external service to the local equipment when the local equipment is started, The first storage unit updates and stores the reference air pressure with the air pressure information transmitted from the second communication unit, The elevator management system according to claim 3.

5. The local equipment is, A detection unit that detects an abnormal stop of the car based on the air pressure measured by the pressure sensor when the car stops Comprising, When the detection unit detects an abnormal stop, the first communication unit reports it to the management device. When the car stops at the ground floor, the first storage unit updates and stores the air pressure on the ground floor. When the difference between the reference air pressure and the air pressure on the ground floor stored in the first storage unit is outside a preset second error range, the detection unit suspends the detection of an abnormal stop. The elevator management system according to claim 1 or claim 2.

6. When reporting when the detection unit detects an abnormal stop, the first communication unit transmits the air pressure on the ground floor stored in the first storage unit to the management device. When the difference between the air pressure of the weather data acquired from the external service and the air pressure on the ground floor acquired from the first communication unit at the time of the report is outside a preset third error range, the determination unit determines that the report is a false alarm. The elevator management system according to claim 5.

7. The management device includes a generation unit that generates correction information used for correcting the calculation of the position of the car by the position calculation unit based on the air pressure of the weather data acquired from the external service. The correction information includes the air pressure of the weather data acquired from the external service. The second communication unit transmits the correction information generated by the generation unit to the first communication unit. The first storage unit updates the reference air pressure stored therein according to the air pressure of the weather data included in the correction information transmitted from the second communication unit to the first communication unit. The elevator management system according to claim 1 or claim 2.

8. The correction information includes a correction coefficient used for correcting the air pressure measured by the air pressure sensor. The first storage unit stores the correction coefficient included in the correction information transmitted from the second communication unit to the first communication unit. The position calculation unit calculates the position of the car after correcting the difference between the reference air pressure and the air pressure measured by the air pressure sensor with the correction coefficient stored in the first storage unit. The elevator management system according to claim 7.

9. When the car stops at the ground floor, the first storage unit updates and stores the reference air pressure. The elevator management system according to claim 1 or claim 2.

10. It is a management device that communicates with local devices installed in a building to which an elevator including a car traveling in the vertical direction is applied. ​ The on-site device has a pressure sensor provided in the car that measures the air pressure at its own position when the car stops. The on-site device stores, as the reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building. The on-site device calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor. The management device has a second communication unit that acquires weather data including the air pressure at the location where the building is provided from an external service, and acquires the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the on-site device. A position calculation unit that determines whether the difference between the air pressure of the weather data acquired from the external service and the reference air pressure acquired from the on-site device is outside a preset first error range. comprises a management device.

11. An elevator management method executed by a computer that communicates with an on-site device provided in a building to which an elevator including a car traveling in the vertical direction is applied. The on-site device has a pressure sensor provided in the car that measures the air pressure at its own position when the car stops. The on-site device stores, as the reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building. The on-site device calculates the position of the car based on the reference air pressure and the air pressure measured by the pressure sensor. In the elevator management system, the computer acquires weather data including the air pressure at the location where the building is provided from an external service. acquires the position of the car calculated from the air pressure measured by the pressure sensor and the reference air pressure from the on-site device. determines whether the difference between the air pressure of the weather data acquired from the external service and the reference air pressure acquired from the on-site device is outside a preset first error range. executes a management method.

12. A program for causing a computer that communicates with an on-site device provided in a building to which an elevator including a car traveling in the vertical direction is applied to execute a process. The on-site device has a pressure sensor provided in the car that measures the air pressure at its own position when the car stops. The on-site device stores, as the reference air pressure, the air pressure measured by the pressure sensor when the car is at a preset ground floor of the building. The on-site device calculates the position of the car based on the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor. In the elevator management system, the computer acquires weather data including the atmospheric pressure at the location where the building is provided from an external service; acquires the position of the car and the reference atmospheric pressure calculated from the atmospheric pressure measured by the atmospheric pressure sensor from the on-site device; determines whether the difference between the atmospheric pressure of the weather data acquired from the external service and the reference atmospheric pressure acquired from the on-site device is outside a preset first error range; A program that causes the above to be executed.

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