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

Abstract

This invention provides an elevator management system, control device, management method, and program that can determine the accuracy of the elevator car's position calculated based on atmospheric pressure. [Solution] The management system 12 comprises a local device 13 installed in the building to which the elevator is applied, and a management device 14. A pressure sensor 20 installed in the elevator car measures the atmospheric pressure at its own position when the car stops. The local device 13 stores the atmospheric pressure measured by the pressure sensor 20 when the car is on the ground floor of the building as a reference atmospheric pressure used to calculate the position of the car. In the management device 14, the second communication unit 26 acquires weather data including atmospheric pressure from an external service 19 and the reference atmospheric pressure acquired from the local device 13. The determination unit 28 determines whether the difference between the atmospheric pressure in the weather 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 identification device for an elevator. The car position identification device acquires pressure data from a pressure sensor provided in the elevator car. In the car position identification device, a data table storing pressure data for each floor is stored to identify the stop floor of the car. When the pressure data in the data table is different from the pressure data measured by the pressure sensor when the car arrives at the reference floor, the car position identification device corrects the pressure data stored in the data table.

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 identification 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, when an abnormality occurs in the pressure sensor itself, the accuracy of the car position calculated based on the pressure cannot be determined by the car position identification device.

[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 this disclosure comprises: a local device installed in a building to which an elevator including a car that travels vertically is applied; and a management device that communicates with the local device, wherein the local device includes: a pressure sensor installed in the car that measures the atmospheric pressure at its own position when the car stops; a first storage unit that stores the atmospheric pressure measured by the pressure sensor as a reference atmospheric pressure when the car is on a predetermined ground floor of the building; a position calculation unit that calculates the position of the car based on the reference atmospheric pressure and the atmospheric pressure measured by the pressure sensor; and the atmospheric pressure measured by the pressure sensor. The control device includes a first communication unit that transmits the position of the cage calculated by the position calculation unit and the reference atmospheric pressure stored in the first storage unit to the control device, the control device includes a second communication unit that acquires weather data including atmospheric pressure at the location where the building is located from an external service, and acquires the position of the cage and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor from the first communication unit, and a determination unit that determines whether the difference between the atmospheric pressure in 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.

[0007] The elevator management device according to this disclosure is a management device that communicates with local equipment installed in a building to which an elevator including a car that travels vertically is applied, wherein the local equipment has a pressure sensor installed in the car that measures the pressure at its own position when the car stops, the local equipment stores the pressure measured by the pressure sensor when the car is on a predetermined ground floor of the building as a reference pressure, the local equipment calculates the position of the car based on the reference pressure and the pressure measured by the pressure sensor, and the management device includes a second communication unit that acquires meteorological data including the pressure at the location where the building is installed from an external service, and acquires the position of the car calculated from the pressure measured by the pressure sensor and the reference pressure from the local equipment, and a position calculation unit that determines whether the difference between the pressure in the meteorological data acquired from the external service and the reference pressure acquired from the local equipment is outside a predetermined first error range.

[0008] The management method relating to this disclosure is an elevator management method executed by a computer that communicates with local equipment installed in a building to which an elevator including a car that travels vertically is applicable, wherein the local equipment has a pressure sensor installed in the car that measures the pressure at its own position when the car stops, the local equipment stores the pressure measured by the pressure sensor when the car is on a predetermined ground floor of the building as a reference pressure, and the local equipment calculates the position of the car based on the reference pressure and the pressure measured by the pressure sensor, and the computer performs the following actions in the elevator management system: acquiring meteorological data including the pressure at the location where the building is installed from an external service, acquiring the position of the car and the reference pressure calculated from the pressure measured by the pressure sensor from the local equipment, and determining whether the difference between the pressure in the meteorological data acquired from the external service and the reference pressure acquired from the local equipment is outside a predetermined first error range.

[0009] The program relating to this disclosure is a program that causes a computer to perform processing in which it communicates with local equipment installed in a building to which an elevator including a car that travels vertically is applied, wherein the local equipment has a pressure sensor installed in the car that measures the pressure at its own position when the car stops, the local equipment stores the pressure measured by the pressure sensor when the car is on a predetermined ground floor of the building as a reference pressure, and the local equipment calculates the position of the car based on the reference pressure and the pressure measured by the pressure sensor, and the computer is instructed to perform the following actions in the elevator management system: to obtain meteorological data including the pressure at the location where the building is installed from an external service, to obtain the position of the car and the reference pressure calculated from the pressure measured by the pressure sensor from the local equipment, and to determine whether the difference between the pressure in the meteorological data obtained from the external service and the reference pressure obtained from the local equipment is outside a predetermined first error range. [Effects of the Invention]

[0010] According to the elevator management system, control device, control method, or program described herein, the accuracy of the elevator car's position, calculated based on atmospheric pressure, can be determined. [Brief explanation of the drawing]

[0011] [Figure 1] This is a diagram showing the configuration of an elevator according to Embodiment 1. [Figure 2] This is a block diagram showing the configuration of the elevator management system according to Embodiment 1. [Figure 3] This figure shows an example of the information used to calculate the location of a shopping cart, which is managed in the management system. [Figure 4] This flowchart shows an example of the operation of the management system according to Embodiment 1. [Figure 5] This is a hardware configuration diagram of the main components of the management system according to Embodiment 1. [Figure 6] This flowchart shows an example of the operation of the management system according to Embodiment 2. [Modes for carrying out the invention]

[0012] The embodiments for carrying out the subject matter of this disclosure will be described with reference to the attached drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals, and redundant explanations are simplified or omitted as appropriate. However, the subject matter of this disclosure is not limited to the following embodiments, and any modification of any component of the embodiments or omission of any component of the embodiments is possible without departing from the spirit of this disclosure.

[0013] Embodiment 1. Figure 1 is a diagram showing the configuration of elevator 1 according to Embodiment 1.

[0014] Elevator 1 is installed in building 2. Elevator 1 is a device that transports users of building 2 between multiple floors of building 2. A hoistway 3 for elevator 1 is provided in building 2. The hoistway 3 is a long vertical space spanning multiple floors. A landing 4 for elevator 1 is provided on each floor of building 2. The landing 4 is a place that leads to the hoistway 3. A landing door 5 is provided at each landing 4. The landing door 5 is a door that separates the landing 4 from the hoistway 3.

[0015] Elevator 1 comprises a hoisting machine 6, a main rope 7, a car 8, a counterweight 9, and a control panel 10. The hoisting machine 6 includes a motor that generates driving torque and a sheave that rotates due to the driving torque generated by the motor. The hoisting machine 6 is located, for example, at the top or bottom of the hoistway 3. The main rope 7 is wound around the sheave of the hoisting machine 6. The main rope 7 supports the load of the car 8 on one side of the sheave of the hoisting machine 6. The main rope 7 supports the load of the counterweight 9 on the other side of the sheave of the hoisting machine 6. The main rope 7 moves so that when the sheave of the hoisting machine 6 rotates, one side of the sheave of the hoisting machine 6 is wound up. The car 8 and the counterweight 9 are located in the hoistway 3. The car 8 and the counterweight 9 travel in opposite directions vertically when the main rope 7 is moved by the hoisting machine 6. The elevator car 8 is a device that transports passengers and other passengers between multiple floors by traveling vertically in the hoistway 3. The elevator car 8 is equipped with a car door 11. The car door 11 is a door that separates the interior and exterior of the elevator car 8. When the elevator car 8 arrives at any floor, the car door 11 opens and closes in conjunction with the landing door 5 provided at the landing 4 of that floor so that passengers can board and alight. The counterweight 9 is a device provided to balance the loads on both sides of the sheave of the hoisting machine 6 with the elevator car 8. The control panel 10 is a device that controls the movement of the elevator car 8 through the control of the hoisting machine 6, etc. The control panel 10 is connected to the hoisting machine 6 and the elevator car 8, etc. so that it can acquire operating information including the position of the elevator car 8. The control panel 10 is located, for example, at the top or bottom of the hoistway 3. If a machine room for the elevator 1 is located above the hoistway 3, the hoisting machine 6 and the control panel 10 may be located in the machine room.

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

[0017] Local equipment 13 is equipment installed in building 2 to which elevator 1 is applied. Local equipment 13 is installed in elevator 1 applied to building 2, for example. Local equipment 13 comprises car equipment 16 and edge equipment 17. Car equipment 16 is installed in car 8. Car equipment 16 moves vertically in the hoistway 3 along with the movement of car 8. In this example, car equipment 16 is located at the top of car 8. Car equipment 16 is equipment that acquires information such as the movement of car 8. Edge equipment 17 is communicably connected to car equipment 16. Edge equipment 17 is located, for example, in the hoistway 3. Edge equipment 17 may be located in other locations in building 2, for example. Edge equipment 17 may be installed in car 8 as equipment integrated with car equipment 16, for example. Edge equipment 17 collects information acquired by car equipment 16. The edge device 17 is connected to a communication network 18 so that it can communicate the collected information. The communication network 18 includes, for example, the Internet, a telephone network, or an optical communication network. The communication network 18 may also include a local network such as a LAN (Local Area Network) within building 2. The communication network 18 may also include a wired or wireless intranet.

[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 that collects and manages information of the elevator 1. In this example, the information center is located in a remote area of 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 via, for example, the communication network 18. Part or all of the functions of the management device 14 may be implemented in 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 via, for example, the communication network 18 or the like. The management device 14 collects information from the external service 19 via, 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 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 the area 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, for example, a person engaged in business at the information center, for monitoring operations such as the operating status of the elevator 1.

[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 position information 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 the 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 communicated by the first communication unit 22 to the management device 14. The first storage unit 23 stores, for example, information such as the measured values ​​of the pressure sensor 20 and the acceleration sensor 21. The first storage unit 23 stores, for example, information such as the reference pressure measured in advance by the pressure sensor 20. The reference pressure is the pressure measured by the pressure sensor 20 when the elevator car 8 is on the ground floor of building 2. The ground floor is one of several floors set in advance in building 2. The ground floor is, for example, the entrance floor where the entrance to building 2 is located, or the main floor.

[0027] The position calculation unit 24 is a part equipped with the function of calculating the vertical position of the car 8. The position calculation unit 24 is provided, for example, on the edge device 17. The position calculation unit 24 calculates the position of the car 8 based, for example, on 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 information acquired by the on-site device 13, without relying on information from the control panel 10 of the elevator 1. The position calculation unit 24 calculates the position of the car 8 based, for example, on 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 expressed by the ratio or difference between the two pressures. The position calculation unit 24 may, for example, detect that the car 8 has stopped based on the acceleration measured by the acceleration sensor 21, or it may detect that the car 8 has stopped because the pressure measured by the pressure sensor 20 has taken a constant value. The position calculation unit 24 may calculate the position of the elevator car 8, for example, by integrating the measured values ​​of the acceleration sensor 21 over time. The position calculation unit 24 may independently calculate the position of the elevator car 8 based on the measured values ​​of the barometric pressure sensor 20 and the position of the elevator car 8 based on the measured values ​​of the acceleration sensor 21. The position of the elevator car 8 calculated by the position calculation unit 24 may be, for example, one of several floors in the building 2.

[0028] The detection unit 25 is a part equipped with a function to detect abnormal stopping of the elevator car 8. The detection unit 25 is provided, for example, in the edge device 17. Abnormal stopping of the elevator car 8 includes, for example, an abnormality in the stopping sequence when the elevator car 8 stops, or an abnormality in the stopping position where the elevator car 8 stops. For example, the detection unit 25 detects an abnormality in the stopping sequence when the change in the measured value of the acceleration sensor 21 deviates from a preset acceleration profile. For example, the detection unit 25 detects an abnormality in the stopping position based on the atmospheric pressure measured by the pressure sensor 20 when the elevator car 8 stops. The detection unit 25 may also detect abnormal stopping of the elevator car 8 based on an external signal output by equipment of the elevator 1, such as the control panel 10, when an abnormality occurs. 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 responsible for communication between the management device 14 and the outside world. The second communication unit 26 communicates information with, for example, the local equipment 13 via the communication network 18. The second communication unit 26 receives notifications from the local equipment 13 at pre-set timings. Notifications from the local equipment 13 may be periodic and occur at pre-set intervals, or irregular and occur when pre-set events occur. Notifications from the local equipment 13 may include, for example, periodic communications for health monitoring, notifications informing of the activation of the local equipment 13, or alarms informing of abnormalities detected by the detection unit 25. Notifications from the local equipment 13 may include, for example, information such as the reference atmospheric pressure used by the position calculation unit 24 to calculate the position of the elevator car 8. The second communication unit 26 communicates information with, for example, the external service 19 via the communication network 18. The second communication unit 26 obtains meteorological data, including atmospheric pressure at the location where the building 2 is located, from the external service 19. The second communication unit 26 obtains meteorological data at pre-set timings. The acquisition of weather data from the external service 19 may be performed periodically at predetermined intervals, or irregularly when predetermined events occur. The second communication unit 26 communicates information with the monitoring terminal 15. For example, when the second communication unit 26 receives a notification from the local equipment 13, it notifies the monitoring terminal 15 of the notification. The operator who receives the notification through the monitoring terminal 15 may, for example, dispatch maintenance personnel to the building 2 where the elevator 1 is installed.

[0031] The second storage unit 27 is a part equipped with the function of storing information. The second storage unit 27 stores information that the second communication unit 26 has communicated with, for example, the local equipment 13 and the external service 19. The second storage unit 27 stores information such as reference atmospheric pressure included in notifications from the local equipment 13. The second storage unit 27 stores information such as weather data obtained from the external service 19. If the weather data includes atmospheric pressure information from multiple locations, the second storage unit 27 stores, for example, the atmospheric pressure at the location closest to where the building 2 is located, associating it with the building 2. If the weather data represents current information such as measured atmospheric pressure, the second storage unit 27 may update the atmospheric pressure information stored as associated with the building 2 each time weather data is acquired. If the weather data represents information for one or more future points in time, such as forecast atmospheric pressure, the second storage unit 27 may store the atmospheric pressure at the point closest to the current time, associating it with the building 2.

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

[0033] The generation unit 29 is equipped with a function to generate correction information used to correct the position calculation of the elevator car 8 by the position calculation unit 24. The correction information is generated based on, for example, atmospheric pressure from weather data obtained from an external service 19. The correction information includes, for example, atmospheric pressure from weather data and a correction coefficient. The atmospheric pressure from weather data is used, for example, to update the reference atmospheric pressure. The correction coefficient is used, for example, to correct the atmospheric pressure measured by the pressure sensor 20 at each floor, or the difference between that atmospheric pressure and the reference atmospheric pressure. The correction information is transmitted to the local equipment 13 via the second communication unit 26.

[0034] Figure 3 shows an example of the information used to calculate the position of the basket 8, which is managed in the management system 12.

[0035] In the field device 13, the first memory unit 23 stores information that identifies the ground floor. In this example, the ground floor is set to the 1st floor. The first memory unit 23 stores the reference atmospheric pressure. The first memory unit 23 stores the correction coefficient. If the first memory unit 23 does not have a function to retain information when the field device 13 is powered off, or if measurements such as the reference atmospheric pressure have not yet been taken, initial values ​​for the reference atmospheric pressure and correction coefficient may be pre-set in the field device 13.

[0036] The reference pressure is measured, for example, by the pressure sensor 20 during a learning operation. A learning operation is an operation performed in elevator 1 to configure the management system 12, such as when the management system 12 is started. A learning operation is performed, for example, based on the actions of a maintenance worker. The maintenance worker stores the pressure measured by the pressure sensor 20 when the elevator car 8 is stopped on the ground floor during a learning operation as the reference pressure in the first storage unit 23. During a learning operation, the maintenance worker stops the elevator car 8 on each floor, for example. The maintenance worker stores the pressure measured by the pressure sensor 20 when the elevator car 8 is stopped on each floor during a learning operation, associating it with the floor on which it is stopped, in the first storage unit 23. In this example, the first storage unit 23 stores the measured pressure value associated with each floor and the reference pressure as separate pieces of information.

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

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

[0039] The first communication unit 22 transmits a notification to the second communication unit 26 of the management device 14 indicating the startup of the local equipment 13, for example, during initial startup, restart after maintenance work, or recovery from a power outage. The notification from the local equipment 13 includes reference atmospheric pressure information stored in the first storage unit 23. The notification from the local equipment 13 may also include atmospheric pressure information measured at each floor, which is stored in the first storage unit 23. The notification may include atmospheric pressure information for all floors, or it may include atmospheric pressure information for some floors, including the ground floor. The notification from the local equipment 13 may also include atmospheric pressure information measured by the pressure sensor 20 at the time of notification. Furthermore, the notification from the local equipment 13 may also include information on the position of the cage 8 calculated by the position calculation unit 24 based on the measured atmospheric pressure. The first communication unit 22 of the local equipment 13 may also notify the management device 14 with the same information as during startup, such as during periodic communications for health monitoring.

[0040] The detection unit 25 determines whether the height of the elevator car 8 in the elevator shaft 3, calculated by the position calculation unit 24 based on the atmospheric pressure measured by the pressure sensor 20 when the elevator car 8 stops, is within a preset stopping range for each floor. If the height of the elevator car 8 is not within the stopping range of any floor, the detection unit 25 detects an abnormal stop of the elevator car 8. The detection unit 25 may also verify the accuracy of the atmospheric pressure information before detecting an abnormal stop. For example, the detection unit 25 detects an abnormal stop of the elevator car 8 when the height of the elevator car 8 is not within the stopping range of any floor, and the difference between the reference atmospheric pressure and the atmospheric pressure of the ground floor stored in the first storage unit 23 is within a preset second error range. On the other hand, even if the height of the elevator car 8 is outside the stopping range, the detection unit 25 may postpone detecting an abnormal stop if the difference between the reference atmospheric pressure and the atmospheric pressure of the ground floor stored in the first storage unit 23 is outside the second error range, on the ground that the atmospheric pressure information may not be accurate. Even in this case, the detection unit 25 does not hold off on detecting abnormal stops based on information other than atmospheric pressure, such as acceleration measured by the acceleration sensor 21 or external signals from the control panel 10.

[0041] The first communication unit 22 sends an alert to the management device 14 when the detection unit 25 detects an abnormal stop of the cage 8. In this example, the alert includes information similar to that notified when the local equipment 13 is started up. The alert may also further include information indicating the abnormality detected by the detection unit 25.

[0042] In the management device 14, the second storage unit 27 stores information included in notifications received from the local equipment 13, such as startup, status monitoring, or abnormality detection. When the determination unit 28 receives a notification from the local equipment 13, it determines whether the difference between the atmospheric pressure in the weather data previously acquired from the external service 19 and the reference pressure included in the notification from the local equipment 13 is outside a preset first error range. The first error range may be set with a certain margin to allow for differences in atmospheric pressure, such as the difference between the height of the point corresponding to the atmospheric pressure in the weather data and the height of the ground floor of building 2. When the difference between the atmospheric pressure in the weather data and the reference pressure is outside the first error range, the determination unit 28 determines that the weather data and the reference pressure are inconsistent. On the other hand, when the difference between the atmospheric pressure in the weather data and the reference pressure is within the first error range, the determination unit 28 determines that the weather data and the reference pressure are inconsistent.

[0043] The generation unit 29 generates correction information, for example, when the determination unit 28 determines that the weather data and reference pressure do not match. The correction information includes the pressure and correction coefficient of the weather data. The generation unit 29 calculates the correction coefficient so that it can improve the accuracy of calculating the position of the elevator car 8 by incorporating the unique conditions of building 2. The correction coefficient is calculated, for example, based on experiments and simulations that take into account the conditions of building 2, as well as machine learning or other pre-set models using historical information from other buildings with similar conditions. The generation unit 29 may also calculate the correction coefficient using information such as the pressure and temperature of the weather data obtained from an external service 19. The generation unit 29 calculates the correction coefficient as a tuning parameter to improve the accuracy of calculating the position of the elevator car 8, for example. The generation unit 29 may also generate correction information without a determination by the determination unit 28, for example, when it receives a notification of activation from the local equipment 13. The correction information generated by the generation unit 29 is transmitted to the first communication unit 22 of the local equipment 13 via the second communication unit 26.

[0044] The determination unit 28 may determine the validity of an alarm when the detection unit 25 of the local equipment 13 detects an abnormal stop of the elevator car 8. The determination unit 28 determines, for example, whether the difference between the atmospheric pressure in the weather data and the atmospheric pressure measured at ground level stored in the first storage unit 23 included in the alarm is outside a preset third error range. The third error range may be set with a certain margin to allow for differences in atmospheric pressure due to differences in the height of the point corresponding to the atmospheric pressure in the weather data and the height of the ground level of the building 2. The third error range may be the same as or different from the first error range. The determination unit 28 determines that the atmospheric pressures do not match when the difference between the atmospheric pressure in the weather data and the atmospheric pressure measured at ground level is outside the third error range. When the determination unit 28 determines that the atmospheric pressures do not match, it determines that the alarm from the local equipment 13 is a false alarm and does not notify the monitoring terminal 15 of the alarm information. When the determination unit 28 determines that the alarm issued from the field device 13 is a false alarm, the generation unit 29 generates correction information, similar to when the determination unit 28 determines that the meteorological data and the reference pressure do not match. The correction information generated by the generation unit 29 is transmitted to the first communication unit 22 of the field device 13 via the second communication unit 26. On the other hand, the determination unit 28 determines that the atmospheric pressures match when the difference between the atmospheric pressure in the meteorological data and the atmospheric pressure measured at the ground level is within the third error range. When the determination unit 28 determines that the atmospheric pressures match, it determines that the alarm issued from the field device 13 is not a false alarm and notifies the monitoring terminal 15 of the alarm information via the second communication unit 26. Alternatively, the determination unit 28 may determine whether the alarm is a false alarm by determining whether the atmospheric pressure in the meteorological data and the reference pressure included in the alarm issued from the field device 13 match based on the first error range, etc.

[0045] In the local device 13, the first storage unit 23 updates the stored reference pressure based on the atmospheric pressure data included in the correction information transmitted by the management device 14. The first storage unit 23 also updates the stored correction coefficient based on the correction coefficient included in the correction information transmitted by the management device 14.

[0046] Next, we will explain an example of the operation of the management system 12 using Figure 4. Figure 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 via the second communication unit 26 at a predetermined acquisition timing (S1). The acquisition timing is, for example, a predetermined periodic timing such as once or multiple times a day.

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

[0049] The local device 13 notifies the second communication unit 26 of the management device 14 from the first communication unit 22 at a pre-set notification timing (S3). The timing of the notification from the local device 13 includes, for example, a liveness monitoring or other periodic timing, when the local device 13 is started up, or when the local device 13 detects an abnormality such as an abnormal stop of the cage 8. The notification from the local device 13 includes the reference atmospheric pressure stored in the first storage unit 23, the atmospheric pressure information measured by the pressure sensor 20 at the time of notification, and the position information of the cage 8 calculated by the position calculation unit 24 based on the measured value of the atmospheric pressure.

[0050] The control device 14 updates the information stored in the second memory unit 27, such as the reference atmospheric pressure used by the local equipment 13 to calculate the position of the cage 8, based on the information contained in the notification received from the local equipment 13 (S4).

[0051] When the control device 14 receives a notification from the field equipment 13, it determines whether the atmospheric pressure in the meteorological data and the reference atmospheric pressure included in the notification are consistent (S5). This determination is made by the determination unit 28 based on whether the difference between the atmospheric pressure in the meteorological data and the reference atmospheric pressure is outside the first error range.

[0052] The management device 14 generates correction information (S6) when the atmospheric pressure and reference atmospheric pressure in the meteorological data do not match. The correction information is generated by the generation unit 29 based on the meteorological data so as to include either or both the atmospheric pressure and the correction coefficient of the meteorological data. The management device 14 transmits the correction information generated by the generation unit 29 to the second communication unit 26 of the field equipment 13 via the first communication unit 22.

[0053] The local device 13 updates the information stored in the first storage unit 23, such as the reference pressure and correction coefficient, based on the information contained in the correction information received from the control device 14 (S7).

[0054] As described above, the management system 12 according to Embodiment 1 comprises a field device 13 and a management device 14. The field device 13 is installed in the building 2 to which the elevator 1 is applied. The field device 13 comprises a pressure sensor 20, a first storage unit 23, a position calculation unit 24, and a first communication unit 22. The pressure sensor 20 is installed in the elevator car 8. The pressure sensor 20 measures the atmospheric pressure at its own position when the elevator car 8 stops. The first storage unit 23 stores the atmospheric pressure measured by the pressure sensor 20 when the elevator car 8 is on the ground floor of the building 2 as the reference atmospheric pressure. The position calculation unit 24 calculates the position of the elevator car 8 based on the reference atmospheric pressure and the atmospheric pressure measured by the pressure sensor 20. The first communication unit 22 transmits the position of the elevator car 8 calculated by the position calculation unit 24 from the atmospheric pressure measured by the 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 weather data, including atmospheric pressure at the location where the building 2 is located, from an external service 19. The second communication unit 26 acquires the position of the cage 8 and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor 20 from the first communication unit 22. The determination unit 28 determines whether the difference between the atmospheric pressure in the weather 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 this configuration, the reference atmospheric pressure measured by the pressure sensor 20 of the on-site equipment 13 is verified by the atmospheric pressure data obtained from the external service 19. Therefore, the accuracy of the position of the elevator car 8, calculated based on the atmospheric pressure measured by the pressure sensor 20 of the on-site equipment 13, is verified by the management device 14. Furthermore, because the management device 14 uses the weather data from the external service 19 for verification, it can determine whether any change in the calculated position of the elevator car 8 is due to an actual change in the position of the elevator car 8 or a change in atmospheric pressure due to weather. In addition, since the position of the elevator car 8 is calculated using the pressure sensor 20 in a way that responds to changes in the surrounding environment such as weather, it becomes possible to monitor the position of the elevator car 8 without relying on information from the control panel 10 of the elevator 1. Therefore, even immediately after the on-site equipment 13 is started up, the position of the elevator car 8 can be accurately determined based on atmospheric pressure. Furthermore, even when it is difficult to obtain information from the control panel 10 of the elevator 1, such as when applying the management system 12 to an existing elevator 1, it becomes possible to determine the position of the elevator car 8.

[0056] Furthermore, the field device 13 is equipped with an acceleration sensor 21. The acceleration sensor 21 is installed on the cage 8. The acceleration sensor 21 measures the vertical acceleration of the cage 8. The position calculation unit 24 calculates the position of the cage 8 based on the acceleration measured by the acceleration sensor 21. By using two methods, acceleration and atmospheric pressure, the field device 13 can calculate the position of the cage 8 more accurately. The field device 13 can determine the position of the cage 8 even if a malfunction occurs in either the acceleration sensor 21 or the atmospheric pressure sensor 20.

[0057] Furthermore, the management device 14 includes a second storage unit 27. When the field equipment 13 is started up, the first communication unit 22 transmits the reference atmospheric pressure stored in the first storage unit 23 to the management device 14. The second storage unit 27 stores the reference atmospheric pressure obtained from the first communication unit 22 by the second communication unit 26. The second communication unit 26 also transmits the atmospheric pressure data obtained from the weather service 19 to the field equipment 13 when the field equipment 13 is started up. The first storage unit 23 updates and stores the reference atmospheric pressure with the atmospheric pressure information transmitted from the second communication unit 26. In this way, since the reference atmospheric pressure information is exchanged with the management device 14 when the field equipment 13 is started up, the field equipment 13 can start operating immediately after startup without having to remeasure the reference atmospheric pressure.

[0058] Furthermore, the field equipment 13 includes a detection unit 25. The detection unit 25 detects an abnormal stop of the elevator car 8 based on the atmospheric pressure measured by the pressure sensor 20 when the elevator car 8 stops. The first communication unit 22 sends an alert to the management device 14 when the detection unit 25 detects an abnormal stop. The first storage unit 23 updates and stores the atmospheric pressure at the ground level when the elevator car 8 stops at the ground level. The detection unit 25 refrains from detecting an abnormal stop if the difference between the reference atmospheric pressure and the ground level atmospheric pressure stored in the first storage unit 23 is outside a preset second error range. In this way, the field equipment 13 verifies the accuracy of the atmospheric pressure information using the latest measured values ​​of the reference atmospheric pressure and ground level atmospheric pressure used in calculating the elevator car 8 before detecting an abnormal stop of the elevator car 8. This reduces false detections of abnormal stops of the elevator car 8.

[0059] Furthermore, when the detection unit 25 detects an abnormal stop, the first communication unit 22 transmits the atmospheric pressure of the ground floor stored in the first storage unit 23 to the management device 14. The determination unit 28 determines that the alarm is a false alarm if the difference between the atmospheric pressure from the weather data obtained from the external service 19 and the atmospheric pressure of the ground floor obtained from the first communication unit 22 at the time of the alarm is outside a preset third error range. In this way, when the management device 14 receives an alarm about an abnormal stop, it verifies the atmospheric pressure measured by the pressure sensor 20 against the atmospheric pressure from the weather data to determine the validity of the alarm. As a result, even if an abnormal stop of the elevator car 8 is falsely detected, it is treated as a false alarm, preventing unnecessary dispatch of maintenance personnel to the building 2 where the elevator 1 is installed.

[0060] The management device 14 also includes a generation unit 29. The generation unit 29 generates correction information based on atmospheric pressure data obtained from an external service 19. The correction information is used to correct the calculation of the position of the elevator car 8 by the position calculation unit 24. The correction information includes atmospheric pressure data obtained 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 stored reference atmospheric pressure with the atmospheric pressure data included in the correction information transmitted from the second communication unit 26 to the first communication unit 22. The correction information also includes a correction coefficient used to correct the atmospheric pressure measured by the 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 elevator car 8 after correcting the difference between the reference atmospheric pressure and the atmospheric pressure measured by the pressure sensor 20 using the correction coefficient stored in the first storage unit 23. In this way, the reference atmospheric pressure and other values ​​used by the local equipment 13 to calculate the position of the elevator car 8 are corrected by correction information based on meteorological data obtained from an external service 19. As a result, the position of the elevator car 8 calculated based on atmospheric pressure becomes more accurate, and false detections of abnormal stops of the elevator car 8 are reduced.

[0061] Furthermore, the first memory unit 23 may store the atmospheric pressure measurement value stored in association with the ground floor as the same information as the reference atmospheric pressure. In other words, the field equipment 13 may treat the atmospheric pressure measurement value stored in the first memory unit 23 in association with the ground floor as the reference atmospheric pressure used as the basis for calculating the position of the elevator car 8. In this case, when the elevator car 8 stops at the ground floor, the first memory unit 23 updates and stores the reference atmospheric pressure based on the atmospheric pressure measurement by the pressure sensor 20. In this way, since the reference atmospheric pressure is updated with the latest measurement value of atmospheric pressure at the ground floor, the position of the elevator car 8 calculated based on the atmospheric pressure becomes more accurate.

[0062] Next, we will explain an example of the hardware configuration of the management system 12 using Figure 5. Figure 5 is a hardware configuration diagram of the main parts of the management system 12 according to Embodiment 1.

[0063] The main components of the management system 12 include, for example, edge devices 17 and management devices 14. Some or all of the functions of the management system 12 can be implemented by processing circuits. Each processing circuit comprises at least one processor 100a and at least one memory 100b. The processing circuit may include at least one dedicated hardware component together with, or as a substitute for, the processor 100a and memory 100b.

[0064] When the processing circuit includes a processor 100a and memory 100b, each function of the management system 12 is implemented by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. This program is stored in memory 100b. The processor 100a implements each function of the management system 12 by reading and executing the program stored in memory 100b. The program may also be a program package containing multiple subprograms, modules, or libraries. The program is sometimes called a program product.

[0065] The processor 100a is also called a CPU (Central Processing Unit), processing unit, arithmetic unit, microprocessor, microcomputer, or DSP. The memory 100b is composed of non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, or EEPROM.

[0066] When a processing circuit has dedicated hardware, it can be implemented as, 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 the management system 12 can be implemented by a processing circuit. Alternatively, each function of the management system 12 can be implemented collectively by a processing circuit. For each function of the management system 12, some may be implemented by dedicated hardware, and others by software or firmware. In this way, the processing circuit implements each function of the management system 12 using dedicated hardware, software, firmware, or a combination thereof.

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

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

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

[0071] To summarize the above explanation, the possible configurations of the technology relating to this disclosure include the configurations listed below as appendices. (Note 1) Local equipment installed in buildings to which elevators, including cars that travel vertically, are applicable, A management device that communicates with the aforementioned local equipment, Equipped with, The aforementioned local equipment is A pressure sensor is provided in the aforementioned cage, which measures the atmospheric pressure at the cage's position when the cage stops. A first storage unit that stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure, A position calculation unit that calculates the position of the cage based on the reference pressure and the pressure measured by the pressure sensor, A first communication unit transmits to the management device the position of the cage calculated by the position calculation unit from the atmospheric pressure measured by the pressure sensor, and the reference atmospheric pressure stored in the first storage unit. Equipped with, The aforementioned control device is A second communication unit obtains weather data, including atmospheric pressure at the location where the building is installed, from an external service, and obtains the position of the cage and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor from the first communication unit. A determination unit that determines whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the first communication unit is outside a preset first error range, Equipped with, Elevator management system. (Note 2) The aforementioned local equipment is An acceleration sensor provided in the aforementioned basket for measuring the vertical acceleration of the basket. Equipped with, The position calculation unit calculates the position of the basket based on the acceleration measured by the acceleration sensor. The elevator management system described in Appendix 1. (Note 3) The aforementioned control device is The second storage unit stores the reference atmospheric pressure obtained by the second communication unit from the first communication unit. Equipped with, The first communication unit transmits the reference atmospheric pressure stored in the first storage unit to the management device when the local equipment is started up. The second communication unit obtains the reference atmospheric pressure transmitted from the first communication unit. The elevator management system described in Appendix 1 or Appendix 2. (Note 4) The second communication unit transmits the atmospheric pressure data obtained from the external service to the local device when the local device is started up. The first storage unit updates and stores the reference atmospheric pressure information transmitted from the second communication unit. The elevator management system described in Appendix 3. (Note 5) The aforementioned local equipment is Detection unit that detects abnormal stopping of the basket based on the atmospheric pressure measured by the pressure sensor when the basket stops. Equipped with, The first communication unit sends an alert to the management device when the detection unit detects an abnormal stop. The first storage unit updates and stores the atmospheric pressure of the ground level when the elevator car stops at the ground level. The detection unit suspends detection of abnormal stoppage when the difference between the reference atmospheric pressure and the atmospheric pressure at the ground level stored in the first storage unit is outside a preset second error range. An elevator management system as described in any of the appendices 1 through 4. (Note 6) The first communication unit transmits the atmospheric pressure of the ground level stored in the first storage unit to the management device when the detection unit detects an abnormal stoppage and issues an alarm. The determination unit determines that the alarm is a false alarm when the difference between the atmospheric pressure in the weather data obtained from the external service and the atmospheric pressure at the ground level obtained from the first communication unit at the time of the alarm issuance is outside a preset third error range. The elevator management system described in Appendix 5. (Note 7) The aforementioned control device is A generation unit that generates correction information used to correct the calculation of the cage's position by the position calculation unit, based on the atmospheric pressure of the weather data obtained from the external service. Equipped with, The correction information includes the atmospheric pressure of the weather data obtained 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 pressure based on the atmospheric pressure of the meteorological data included in the correction information transmitted from the second communication unit to the first communication unit. An elevator management system as described in any of the appendices 1 through 6. (Note 8) The correction information includes a correction coefficient used to correct the atmospheric pressure measured by the 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 basket after correcting the difference between the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor using the correction coefficient stored in the first storage unit. The elevator management system described in Appendix 7. (Note 9) The first storage unit updates and stores the reference atmospheric pressure when the elevator car stops at the ground level. An elevator management system as described in any of the appendices 1 through 4. (Note 10) This is a management device that communicates with on-site equipment installed in buildings where elevators, including cars that travel vertically, are used. The aforementioned local equipment has a pressure sensor installed in the cage that measures the atmospheric pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned on-site equipment calculates the position of the cage based on the reference pressure and the pressure measured by the pressure sensor, The control device is A second communication unit obtains weather data, including atmospheric pressure, at the location where the building is located from an external service, and obtains the position of the cage and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor from the local equipment. A position calculation unit that determines whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, Equipped with, Management device. (Note 11) A method for managing an elevator, which includes a car that travels vertically, is performed by a computer that communicates with on-site equipment installed in a building to which the elevator is applied, The aforementioned local equipment has a pressure sensor installed in the cage that measures the pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned local equipment calculates the position of the basket based on the reference pressure and the pressure measured by the pressure sensor. In the elevator management system, The aforementioned computer, Obtaining weather data, including atmospheric pressure, for the location where the aforementioned building is constructed from an external service, The position of the cage and the reference pressure, calculated from the atmospheric pressure measured by the pressure sensor, are obtained from the local equipment. Determining whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, A method for managing and executing this process. (Note 12) This is a program that causes a computer to perform processing in which it communicates with on-site equipment installed in a building to which an elevator, including a car that travels vertically, is applied. The aforementioned local equipment has a pressure sensor installed in the cage that measures the pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned local equipment calculates the position of the basket based on the reference pressure and the pressure measured by the pressure sensor. In the elevator management system, To the aforementioned computer, Obtaining weather data, including atmospheric pressure, for the location where the aforementioned building is constructed from an external service, The position of the cage and the reference pressure, calculated from the atmospheric pressure measured by the pressure sensor, are obtained from the local equipment. Determining whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, A program that executes something. [Explanation of symbols]

[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 On-site equipment, 14 Management device, 15 Monitoring terminal, 16 Car equipment, 17 Edge equipment, 18 Communication network, 19 External services, 20 Barometric 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 installed in buildings to which elevators, including cars that travel vertically, are applicable, A management device that communicates with the aforementioned local equipment, Equipped with, The aforementioned local equipment is A pressure sensor is provided in the aforementioned cage, which measures the atmospheric pressure at the cage's position when the cage stops. A first storage unit that stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure, A position calculation unit that calculates the position of the cage based on the reference pressure and the pressure measured by the pressure sensor, A first communication unit transmits to the management device the position of the cage calculated by the position calculation unit from the atmospheric pressure measured by the pressure sensor, and the reference atmospheric pressure stored in the first storage unit. Equipped with, The aforementioned control device is A second communication unit obtains weather data, including atmospheric pressure at the location where the building is installed, from an external service, and obtains the position of the cage and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor from the first communication unit. A determination unit that determines whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the first communication unit is outside a preset first error range, Equipped with, Elevator management system.

2. The aforementioned local equipment is An acceleration sensor provided in the aforementioned basket for measuring the vertical acceleration of the basket. Equipped with, The position calculation unit calculates the position of the basket based on the acceleration measured by the acceleration sensor. The elevator management system according to claim 1.

3. The aforementioned control device is The second storage unit stores the reference atmospheric pressure obtained by the second communication unit from the first communication unit. Equipped with, The first communication unit transmits the reference atmospheric pressure stored in the first storage unit to the management device when the local equipment is started up. The second communication unit obtains the reference atmospheric pressure transmitted from the first communication unit. An elevator management system according to claim 1 or claim 2.

4. The second communication unit transmits the atmospheric pressure data obtained from the external service to the local device when the local device is started up. The first storage unit updates and stores the reference atmospheric pressure information transmitted from the second communication unit. The elevator management system according to claim 3.

5. The aforementioned local equipment is Detection unit that detects abnormal stopping of the basket based on the atmospheric pressure measured by the pressure sensor when the basket stops. Equipped with, The first communication unit sends an alert to the management device when the detection unit detects an abnormal stop. The first storage unit updates and stores the atmospheric pressure of the ground level when the elevator car stops at the ground level. The detection unit suspends detection of abnormal stoppage when the difference between the reference atmospheric pressure and the atmospheric pressure at the ground level stored in the first storage unit is outside a preset second error range. An elevator management system according to claim 1 or claim 2.

6. The first communication unit transmits the atmospheric pressure of the ground level stored in the first storage unit to the management device when the detection unit detects an abnormal stoppage and issues an alarm. The determination unit determines that the alarm is a false alarm when the difference between the atmospheric pressure in the weather data obtained from the external service and the atmospheric pressure at the ground level obtained from the first communication unit at the time of the alarm issuance is outside a preset third error range. The elevator management system according to claim 5.

7. The aforementioned control device is A generation unit that generates correction information used to correct the calculation of the cage's position by the position calculation unit, based on the atmospheric pressure of the weather data obtained from the external service. Equipped with, The correction information includes the atmospheric pressure of the weather data obtained 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 pressure based on the atmospheric pressure of the weather data included in the correction information transmitted from the second communication unit to the first communication unit. An elevator management system according to claim 1 or claim 2.

8. The correction information includes a correction coefficient used to correct the atmospheric pressure measured by the 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 basket after correcting the difference between the reference atmospheric pressure and the atmospheric pressure measured by the atmospheric pressure sensor using the correction coefficient stored in the first storage unit. The elevator management system according to claim 7.

9. The first storage unit updates and stores the reference atmospheric pressure when the elevator car stops at the ground level. An elevator management system according to claim 1 or claim 2.

10. This is a management device that communicates with on-site equipment installed in buildings where elevators, including cars that travel vertically, are used. The aforementioned local equipment has a pressure sensor installed in the cage that measures the atmospheric pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned on-site equipment calculates the position of the cage based on the reference pressure and the pressure measured by the pressure sensor, The control device is A second communication unit obtains weather data, including atmospheric pressure, at the location where the building is installed from an external service, and obtains the position of the cage and the reference atmospheric pressure calculated from the atmospheric pressure measured by the pressure sensor from the local equipment. A position calculation unit that determines whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, Equipped with, Management device.

11. A method for managing an elevator, which includes a car that travels vertically, is performed by a computer that communicates with on-site equipment installed in a building to which the elevator is applied, The aforementioned local equipment has a pressure sensor installed in the cage that measures the pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned local equipment calculates the position of the basket based on the reference pressure and the pressure measured by the pressure sensor. In the elevator management system, The aforementioned computer, Obtaining weather data, including atmospheric pressure, for the location where the aforementioned building is constructed from an external service, The position of the cage and the reference pressure, calculated from the atmospheric pressure measured by the pressure sensor, are obtained from the local equipment. Determining whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, A method for managing and executing this process.

12. This is a program that causes a computer to perform processing in which it communicates with on-site equipment installed in a building to which an elevator, including a car that travels vertically, is applied. The aforementioned local equipment has a pressure sensor installed in the cage that measures the pressure at its own position when the cage stops, The aforementioned on-site equipment stores the atmospheric pressure measured by the pressure sensor when the cage is located on a predetermined ground floor of the building as the reference atmospheric pressure. The aforementioned local equipment calculates the position of the basket based on the reference pressure and the pressure measured by the pressure sensor. In the elevator management system, To the aforementioned computer, Obtaining weather data, including atmospheric pressure, for the location where the aforementioned building is constructed from an external service, The position of the cage and the reference pressure, calculated from the atmospheric pressure measured by the pressure sensor, are obtained from the local equipment. Determining whether the difference between the atmospheric pressure of the weather data obtained from the external service and the reference atmospheric pressure obtained from the local equipment is outside a preset first error range, A program that executes something.

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