Management system of an elevator and field device thereof

Abstract

The elevator management system and its field equipment are capable of suppressing the degradation of the reliability of the stored operating data. The management system (12) has field equipment (13) installed in the building (2) where the elevator (1) is used. The field equipment (13) has an observation device (20), a calculation unit (21), a detection unit (22), a normal storage unit (29), and a temporary storage unit (30). The observation device (20) installed in the car (8) observes observation data containing the car's travel information. The calculation unit (21) calculates operating data containing the car's position based on the observation data when the car stops. The detection unit detects unreliable states as states where the car's position in the operating data calculated by the calculation unit (21) may be unreliable. The operating data is stored in the normal storage unit (29) when the detection unit does not detect an unreliable state, and stored in the temporary storage unit (30) when the detection unit detects an unreliable state.

Description

Technical Field

[0001] This disclosure relates to elevator management systems and their field equipment. Background Technology

[0002] Patent Document 1 discloses an example of an elevator car position determination device. The car position determination device obtains air pressure data from an air pressure sensor installed in the elevator car. The car position determination device determines the floor the car will stop at based on the air pressure sensor.

[0003] Patent Document 1: Japanese Patent No. 7395433

[0004] However, the car position determination device in Patent Document 1 is a device independent of the elevator itself. Therefore, even if the car position, such as the landing floor, cannot be reliably determined due to an anomaly in the car position determination device, the elevator continues to operate. Regarding the elevator's operation during this period, the car position determined and recorded by the car position determination device may be unreliable, and the reliability of elevator operation data, such as the car position, may be reduced. Summary of the Invention

[0005] This disclosure relates to a solution to this problem. This disclosure provides an elevator management system and its field equipment capable of suppressing the degradation of the reliability of stored operational data.

[0006] The elevator field equipment disclosed herein is installed in a building using the elevator and is included in the elevator management system. The elevator includes a car that travels in a vertical direction. The field equipment comprises: an observation device disposed in the car that observes observation data including the car's travel information; a calculation unit that calculates operating data including the car's position based on the observation data observed by the observation device when the car stops; a detection unit that detects a pre-set unreliable state in the operating data calculated by the calculation unit, indicating that the car's position may be unreliable; a normal storage unit that stores the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state; and a temporary storage unit that stores the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

[0007] The elevator management system disclosed herein includes an elevator management system for an elevator comprising a car traveling in a vertical direction, wherein the management system comprises: a field device installed in the building where the elevator is used; and a management device communicating with the field device, the field device comprising: an observation device installed in the car to observe observation data including the car's travel information; a calculation unit to calculate operating data including the car's position based on the observation data observed by the observation device when the car stops; a detection unit to detect a pre-set unreliable state in the operating data calculated by the calculation unit, indicating that the car's position may be unreliable; a normal storage unit to store the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state; and a temporary storage unit to store the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

[0008] Invention Effects

[0009] The elevator management system or its field equipment according to this disclosure can suppress the degradation of the reliability of the stored operating data. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the elevator according to implementation method 1.

[0011] Figure 2 This is a block diagram showing the structure of the elevator management system according to Embodiment 1.

[0012] Figure 3 This is a diagram illustrating an example of information managed in a management system.

[0013] Figure 4 This is a flowchart illustrating an example of the operation of the management system in Implementation 1.

[0014] Figure 5 This is a hardware structure diagram of the main parts of the management system in Implementation Method 1.

[0015] Figure 6 This is a block diagram showing the structure of the elevator management system according to Embodiment 2.

[0016] Figure 7 This is a flowchart illustrating an example of the operation of the management system in Implementation 2.

[0017] Figure 8 This is a block diagram showing the structure of the elevator management system according to Embodiment 3.

[0018] Figure 9 This is a flowchart illustrating an example of the operation of the management system in Implementation 3.

[0019] Label Explanation

[0020] 1: Elevator; 2: Building; 3: Shaft; 4: Landing; 5: Landing door; 6: Traction machine; 7: Main rope; 8: Car; 9: Counterweight; 10: Control panel; 11: Car door; 12: Management system; 13: Field equipment; 14: Management device; 15: Monitoring terminal; 16: Car equipment; 17: Edge equipment; 18: Communication network; 19: External services; 20: Observation device; 21: Computing unit; 22: Detection unit; 23: First Communication Unit; 24: First Storage Unit; 25: Integration Unit; 26: Barometric Pressure Sensor; 27: Accelerometer Sensor; 28: Camera; 29: Normal Storage Unit; 30: Provisional Storage Unit; 31: Second Communication Unit; 32: Second Storage Unit; 33: Judgment Unit; 34: Generation Unit; 35: Calibration Unit; 36: Display Unit; 37: Operation Unit; 100a: Processor; 100b: Memory; 200: Dedicated Hardware. Detailed Implementation

[0021] The embodiments for implementing this disclosure will be described with reference to the accompanying drawings. In the drawings, identical or equivalent parts are labeled with the same reference numerals, and repetitive descriptions are simplified or omitted where appropriate. Furthermore, the scope of this disclosure is not limited to the following embodiments; any modifications or omissions of structural elements of the embodiments are possible without departing from the spirit of this disclosure.

[0022] Implementation Method 1

[0023] Figure 1 This is a structural diagram of elevator 1 according to implementation method 1.

[0024] Elevator 1 is used in building 2. Elevator 1 is a device for transporting users of building 2 between multiple floors of building 2. A shaft 3 for elevator 1 is provided in building 2. Shaft 3 is a relatively long space extending vertically through multiple floors. Each floor of building 2 has a landing 4 for elevator 1. Landing 4 is a location that communicates with shaft 3. Each landing 4 has a landing door 5. Landing door 5 is a door that separates landing 4 from shaft 3.

[0025] Elevator 1 includes a traction machine 6, a main rope 7, a car 8, a counterweight 9, and a control panel 10. The traction machine 6 includes a motor that generates driving torque and a sheave that rotates by the driving torque generated by the motor. The traction machine 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 traction machine 6. The main rope 7 supports the load of the car 8 on one side of the sheave of the traction machine 6. The main rope 7 supports the load of the counterweight 9 on the other side of the sheave of the traction machine 6. As the sheave of the traction machine 6 rotates, the main rope 7 moves such that either side of the sheave of the traction machine 6 is wound up. The car 8 and the counterweight 9 are disposed in the hoistway 3. As the main rope 7 moves through the traction machine 6, the car 8 and the counterweight 9 travel in opposite directions in the vertical direction. The car 8 is a device that transports users traveling vertically between multiple floors in the hoistway 3. The car 8 has a car door 11. The car door 11 is the door that divides the interior and exterior of the car 8. When the car 8 arrives at any floor, the car door 11 causes the landing door 5 of the landing 4 located on that floor to open and close in conjunction, allowing users to board and alight. The counterweight 9 is a device configured to balance the load applied to both sides of the sheave of the traction machine 6 between itself and the car 8. The control panel 10 is a device that controls the movement of the car 8 via the control of the traction machine 6, etc. The control panel 10 is connected to the traction machine 6 and the car 8, etc., to obtain operating information including the position of the car 8. The control panel 10 is, for example, located in the upper or lower part of the hoistway 3. When the machine room of the elevator 1 is located above the hoistway 3, the traction machine 6 and the control panel 10 may also be located in the machine room.

[0026] A management system 12 is applied to elevator 1. The management system 12 is a system that manages elevator 1 by monitoring its operating status. The management system 12 can be an external system added to an existing elevator 1, or it can be an internal system that is part of an elevator system that includes elevator 1. The management system 12 has field devices 13, management devices 14, and monitoring terminals 15.

[0027] Field device 13 is a device installed in a building 2 where elevator 1 is used. Field device 13 is installed, for example, in elevator 1 used in building 2. Field device 13 includes car device 16 and edge device 17. Car device 16 is installed in car 8. Car device 16 moves vertically in the hoistway 3 as car 8 travels. In this example, car device 16 is located at the upper part of car 8. Car device 16 can also be a device located at the lower part of car 8, or multiple devices can be located at both the upper and lower parts of car 8. Car device 16 is a device that acquires information such as the travel of car 8. Edge device 17 is connected to car device 16 in a communicative manner. Edge device 17 is installed, for example, in hoistway 3. Edge device 17 can also be installed in other locations within building 2. Edge device 17 can also be installed in car 8 as an integral part of car device 16. Edge device 17 collects information acquired by car device 16. Edge device 17 is connected to communication network 18 to communicate the collected information. Communication network 18 may include, for example, the Internet, telephone line network, or optical communication line network. Communication network 18 may also include local area networks such as LANs (Local Area Networks) within building 2. Communication network 18 may also include intranets based on wired or wireless methods.

[0028] Management device 14 is a device that performs information management and other processing within management system 12. Management device 14 is, for example, located in an information center. The information center is a hub for collecting and managing information about elevator 1. In this example, the information center is located far from building 2. Management device 14 communicates with external devices, for example, via communication network 18. Management device 14 is, for example, a computer system consisting of one or more server devices, or a device containing such a system. The multiple server devices constituting management device 14 can also be located in different places. In this case, the multiple server devices communicate with each other, for example, via communication network 18. Some or all of the functions of management device 14 can be installed on a virtual machine on a cloud service, or installed using processing or storage resources on a cloud service.

[0029] The management device 14 communicates with the edge device 17, for example, via a communication network 18. The management device 14 collects information from an external service 19, for example, via the communication network 18. The external service 19 provides information services outside the management system 12. For example, the external service 19 provides meteorological information services, such as those that publish weather information. The meteorological information service is provided by a system operated by a public agency that processes weather information, such as the Japan Meteorological Agency, a private company, or another organization. The management device 14 obtains meteorological data from the external service 19. The meteorological data includes information such as the air pressure at the location where the building 2 is located. The air pressure in the meteorological data can be the surface air pressure at the location where the building 2 is located, or the sea level air pressure converted to sea level. The air pressure in the meteorological data can be the air pressure at a representative point in the area where the building 2 is located, the average air pressure of that area, or the air pressure at grid points covering the area.

[0030] Monitoring terminal 15 is an information processing terminal device used to monitor the operating status of elevator 1, etc. Monitoring terminal 15 is installed, for example, in an information center. Monitoring terminal 15 is used by personnel working in the information center, such as operators, to monitor the operating status of elevator 1, etc.

[0031] Figure 2 This is a block diagram showing the structure of the management system 12 of the elevator 1 according to Embodiment 1.

[0032] The field device 13 includes an observation device 20, a computing unit 21, a detection unit 22, a first communication unit 23, a first storage unit 24, and an integration unit 25.

[0033] The observation device 20 is a device that observes quantities or information representing the surrounding environment or other conditions as observation data. The observation device 20 is installed in the car equipment 16. The observation device 20 moves vertically within the hoistway 3 as the car 8 travels to observe the data; therefore, the observation data includes the travel information of the car 8. The observation device 20 can be a single device equipped with one or more sensors, or it can be multiple separable devices. In this example, the observation device 20 includes a pressure sensor 26, an acceleration sensor 27, and a camera 28. The pressure sensor 26 is a sensor that measures the air pressure at its own position. The pressure sensor 26 moves vertically within the hoistway 3 as the car 8 travels; therefore, the air pressure measured by the pressure sensor 26 reflects the position information of the car 8. The pressure sensor 26 is, for example, fixedly mounted on the upper surface of the car 8. The acceleration sensor 27 is a sensor that measures the acceleration of its own motion. In this example, the acceleration sensor 27 measures at least the acceleration in the vertical direction. Accelerometer 27 moves vertically within the hoistway 3 as the car 8 moves. Therefore, the acceleration measured by accelerometer 27 reflects the car 8's acceleration, speed, and position, among other driving information. Accelerometer 27 can also be a 3-axis accelerometer. Accelerometer 27 can be fixedly mounted on the upper surface of the car 8, or it can be mounted on the car door 11, etc. Camera 28 is a device for capturing images of the hoistway 3, etc. Camera 28 moves vertically within the hoistway 3 as the car 8 moves, capturing images of the hoistway 3. Therefore, the images captured by camera 28 reflect the car 8's driving information. Camera 28 can be fixedly mounted on one or both of the upper and lower surfaces of the car 8, for example. Observation device 20 may also include a switch or sensor installed on the car door 11 that observes whether the car door 11 is open or closed, or the degree of opening of the car door 11, as observation data.

[0034] The calculation unit 21 is a component that calculates the operating data of the elevator 1 based on the observation data observed by the observation device 20. The calculation unit 21 is, for example, installed in the edge device 17. The operating data represents data such as the operating history or operating status of the elevator 1. The operating data includes the vertical position information of the car 8. In this example, the operating data includes information such as the number of trips of the car 8, the distance traveled, the travel time, and the number of times the car doors 11 are opened and closed on each floor. Furthermore, the operating data may also include information such as the number of bends of the main rope 7.

[0035] The calculation unit 21 calculates the position of the car 8, for example, based on the measured values ​​of the pressure sensor 26 and the acceleration sensor 27. In this example, the calculation unit 21 calculates the position of the car 8 based on the information obtained from the field device 13, independent of the information from the control panel 10 of the elevator 1. The calculation unit 21 calculates the position of the car 8, for example, based on the difference between the air pressure measured by the pressure sensor 26 when the car 8 stops and a reference air pressure pre-measured by the pressure sensor 26. Here, the difference between the two air pressures is expressed as a ratio or difference between the two air pressures. The reference air pressure is the air pressure measured by the pressure sensor 26 when the car 8 is located at the ground level of the building 2. The ground level is any floor among a plurality of pre-set floors in the building 2. The ground level is, for example, an entrance floor or a main floor where the entrance to the building 2 is located. The calculation unit 21 can detect the stopping status of the car 8 based on the acceleration measured by the accelerometer 27, or by using a constant air pressure measured by the pressure sensor 26, or by using an image of the hoistway 3 captured by the camera 28. The calculation unit 21 can also calculate the position of the car 8 by integrating the measured value of the accelerometer 27 over time. The calculation unit 21 can also independently calculate the position of the car 8 based on the measured value of the pressure sensor 26 and the position of the car 8 based on the measured value of the accelerometer 27. The position of the car 8 calculated by the calculation unit 21 can be, for example, any floor among multiple floors in the building 2.

[0036] The calculation unit 21 calculates information such as the number of trips, travel distance, and travel time of the car 8 based on the measured values ​​of the acceleration sensor 27, for example. The calculation unit 21 also calculates information such as the number of bends of the main rope 7 based on information such as the position of the car 8, the number of trips, travel distance, and travel time calculated based on observation data. The calculation unit 21 calculates information such as the number of times the car door 11 is opened and closed based on the observation device 20, such as the switch or sensor installed on the car door 11, which observes whether the car door 11 is open or closed or the degree of opening of the car door 11. When the acceleration sensor 27 is installed on the car door 11, the calculation unit 21 can also calculate information such as the number of times the car door 11 is opened and closed based on the horizontal acceleration measured by the acceleration sensor 27. The calculation unit 21 can also set the position of the car 8 calculated based on the observation data as the floor where the car door 11 is opened and closed. The calculation unit 21 can also set the observation data itself as the operating data. The computing unit 21 may, for example, set the image of the hoistway 3 captured by the camera 28 when the car 8 stops as operating data.

[0037] The detection unit 22 is equipped with a function to detect unreliable states. The detection unit 22 is, for example, installed in the edge device 17. An unreliable state is a pre-set state that indicates the position of the car 8 in the operating data calculated by the calculation unit 21 may be unreliable. An unreliable state includes, for example, the occurrence of an abnormal stop of the car 8. An abnormal stop of the car 8 includes, for example, an abnormality in the stopping timing or an abnormality in the stopping position. For example, when the change in the measured value of the acceleration sensor 27 deviates from a pre-set acceleration profile, the detection unit 22 detects an abnormality in the stopping timing. The detection unit 22 detects an abnormality in the stopping position, for example, based on the air pressure measured by the air pressure sensor 26 when the car 8 stops. Additionally, the detection unit 22 can also detect an abnormal stop of the car 8 based on external signals output by the control panel 10 or other elevator 1 equipment when there is an abnormality. When an abnormal stop of the car 8 is detected, there are cases where an abnormal stop actually occurs and cases where a false detection occurs due to an abnormality in the calculation of the car 8's position. Therefore, when an abnormal stop of car 8 is detected, the position of car 8 may be unreliable. Furthermore, unreliable states may also include situations where the current position of car 8 is unknown, such as during the initial startup of field equipment 13, restart after maintenance work, or recovery from a power outage, or when a normal value is not stored as a reference pressure. In the case where the current position of car 8 is unknown, the position of car 8 calculated based on the movement of car 8 may be unreliable. Furthermore, unreliable states may also include situations where the position of car 8 based on the measurement value of pressure sensor 26 and the position of car 8 based on the measurement value of acceleration sensor 27 are inconsistent.

[0038] The first communication unit 23 is responsible for communicating with the external environment of the field device 13. The first communication unit 23 is, for example, installed in the edge device 17. The first communication unit 23 communicates information with the management device 14 via a communication network 18, for example. The first communication unit 23, for example, notifies the management device 14 of the detection of unreliable conditions by the detection unit 22. The first communication unit 23 is an example of a notification unit that notifies the management device 14.

[0039] The first storage unit 24 is a part equipped with the function of storing information. The first storage unit 24 is, for example, provided in the edge device 17. The first storage unit 24 stores, for example, information communicated with the management device 14 via the first communication unit 23. The first storage unit 24 has a normal storage unit 29 and a provisional storage unit 30. The normal storage unit 29 stores operating data during normal operation. When the detection unit 22 does not detect an unreliable state, the normal storage unit 29 accumulates and stores observation data observed by the observation device 20 and operating data calculated by the calculation unit 21, such as the measured values ​​of the pressure sensor 26 and the acceleration sensor 27, and the calculated position information of the car 8. The provisional storage unit 30 provisionally stores the operating data of the elevator 1 when the detection unit 22 detects an unreliable state. When the detection unit 22 detects an unreliable state, the provisional storage unit 30 accumulates and stores the observation data observed by the observation device 20 and the operating data calculated by the calculation unit 21, such as the measured values ​​of the pressure sensor 26 and the acceleration sensor 27, as well as the calculated position information of the car 8.

[0040] The integration unit 25 is a component equipped with a function to perform integration processing, which integrates the operating data stored in the provisional storage unit 30 into the operating data stored in the normal storage unit 29. The integration unit 25 is, for example, provided in the edge device 17. For example, the integration unit 25 performs integration processing after an unreliable state detected by the detection unit 22 is eliminated. For example, the integration unit 25 performs integration processing after confirming that the observation data and operating data obtained during the period when the unreliable state was detected by the detection unit 22 are appropriate.

[0041] The management device 14 includes a second communication unit 31, a second storage unit 32, a determination unit 33, and a generation unit 34.

[0042] The second communication unit 31 is responsible for communicating with the outside of the management device 14. For example, the second communication unit 31 communicates with the field device 13 via a communication network 18. The second communication unit 31 receives notifications from the field device 13 at preset times. Notifications from the field device 13 can be periodic notifications at preset intervals or irregular notifications when preset events occur. Notifications from the field device 13 can be, for example, notifications from the detection unit 22 regarding the detection of unreliable conditions. Notifications from the field device 13 can include, for example, information such as the reference air pressure used by the calculation unit 21 in calculating the position of the car 8. Notifications from the field device 13 can also include observation data observed by the observation device 20 and operating data calculated by the calculation unit 21 at the time of notification, such as the air pressure measured by the pressure sensor 26 and the position information of the car 8 calculated based on that air pressure. Notifications from the field device 13 can also include, for example, information such as the reference air pressure used by the calculation unit 21 in calculating the position of the car 8. The second communication unit 31 communicates information with external services 19 via communication network 18, for example. The second communication unit 31 obtains meteorological data, including air pressure at the location where building 2 is located, from external services 19. The second communication unit 31 obtains meteorological data at preset times. The acquisition of meteorological data from external services 19 can be periodic, performed at preset intervals, or irregular, performed when a preset event occurs. The second communication unit 31 communicates information with monitoring terminal 15. For example, when the second communication unit 31 receives notifications such as abnormal stopping of elevator car 8 from field equipment 13, it sends such notification information to monitoring terminal 15. The operator receiving the notification through monitoring terminal 15 can, for example, dispatch maintenance personnel to building 2 where elevator 1 is located.

[0043] The second storage unit 32 is a part equipped with the function of storing information. For example, the second storage unit 32 stores information communicated between the second communication unit 31 and field devices 13 and external services 19. For example, the second storage unit 32 stores information such as observation data and operational data included in notifications from the field device 13. For example, the second storage unit 32 stores information such as reference air pressure included in notifications from the field device 13. For example, the second storage unit 32 stores information such as meteorological data obtained from the external service 19. When the meteorological data includes air pressure information for multiple locations, the second storage unit 32, for example, stores the air pressure of the location closest to the site where the building 2 is located, associated with that building 2. When the meteorological data represents current information such as measured air pressure values, the second storage unit 32 can also update and store the air pressure information associated with the building 2 each time meteorological data is obtained. When the meteorological data represents information for one or more future points in time, such as forecast air pressure values, the second storage unit 32 can also store the air pressure of the point closest to the current time, associated with the building 2.

[0044] The determination unit 33 is equipped with a function to determine the appropriateness of the relationship between observation data and operational data contained in the notification from the field device 13. For example, the determination unit 33 determines the appropriateness of the relationship between the air pressure in the observation data and the position of the car 8 in the operational data based on whether the air pressure in the meteorological data matches the reference air pressure contained in the notification from the field device 13. The determination unit 33 also determines the matching based on whether the difference between the air pressure in the meteorological data and the reference air pressure is outside a preset error range. When the air pressure in the meteorological data does not match the reference air pressure, the position of the car 8 calculated based on the air pressure is inaccurate, and the relationship between the observation data and the operational data may be inappropriate. The determination unit 33 may also determine the appropriateness of the relationship between the observation data and the operational data using other methods.

[0045] The generation unit 34 is a unit that carries correction information used in the calculation of operating data performed by the calculation unit 21. The correction information is generated, for example, based on atmospheric pressure data obtained from external service 19. The correction information includes, for example, the atmospheric pressure data and correction coefficients. The atmospheric pressure data is used, for example, to update the reference atmospheric pressure. The correction coefficients are used, for example, to correct the atmospheric pressure measured by the pressure sensor 26 at each floor or the difference between that atmospheric pressure and the reference atmospheric pressure. The correction information is transmitted to the field device 13 via the second communication unit 31.

[0046] Figure 3 This is a diagram showing an example of the information managed in the management system 12.

[0047] In the field device 13, the first storage unit 24 stores information about the determined surface layer. In this example, the surface layer is set to layer 1. The first storage unit 24 stores the reference air pressure. The first storage unit 24 stores the correction coefficient. In addition, if the first storage unit 24 is not equipped with a function to retain information when the power to the field device 13 is cut off, or if the reference air pressure or other measurements have not yet been performed, initial values ​​for the reference air pressure and correction coefficient can be preset in the field device 13.

[0048] The reference air pressure is measured by the air pressure sensor 26, for example, during the learning operation. The learning operation is an operation performed in the elevator 1 to set up the management system 12, for example, during the initial operation of the management system 12. The learning operation is performed, for example, based on the operation of the maintenance personnel. The maintenance personnel store the air pressure measured by the air pressure sensor 26 when the car 8 is stopped at the ground floor during the learning operation as the reference air pressure in the first storage unit 24. During the learning operation, the maintenance personnel, for example, stop the car 8 at each floor. The maintenance personnel associate the air pressure measured by the air pressure sensor 26 when the car 8 is stopped at each floor with the floor it is stopped at, and store this as the saved air pressure in the first storage unit 24. In this example, the first storage unit 24 stores the measured air pressure values ​​associated with each floor and the reference air pressure as independent information.

[0049] In this example, the calculation unit 21 corrects the ratio of the air pressure measured by the air pressure sensor 26 to the reference air pressure by multiplying it by a correction factor, and then further multiplies it by a conversion factor to calculate the height of the car 8 in the hoistway 3. The conversion factor is set, for example, according to a height measurement formula. The calculation unit 21 can also calculate the height of the car 8 without using a correction factor. The calculation unit 21 reads the reference air pressure and the correction factor from the first storage unit 24 and calculates the height of the car 8. The calculation unit 21 compares the height preset for each floor with the height of the car 8 calculated based on the air pressure, and calculates the floor with the height closest to the height of the car 8 calculated based on the air pressure as the position of the car 8. The height of each floor is preset by the maintenance personnel, for example, during learning operation. The calculation unit 21 can also calculate the height of the car 8 in the hoistway 3 based on the air pressure measured by the air pressure sensor 26 and the reference air pressure during learning operation. In this case, the maintenance personnel associate the height calculated by the calculation unit 21 with each floor and store it in the first storage unit 24. The maintenance personnel can also store the height of each floor in the first storage unit 24 based on the design values ​​or other information.

[0050] During normal operation of elevator 1, the calculation unit 21 obtains the air pressure measured by the air pressure sensor 26 when the car 8 stops. Using the air pressure measured at this time, along with information such as the reference air pressure and correction coefficient stored in the first storage unit 24, the calculation unit 21 calculates the floor where the car 8 is currently stopped as the position of the car 8. Here, the detection unit 22 does not detect any unreliable conditions. At this time, the normal storage unit 29, for example, accumulates and stores the calculated stopping floor as operating data, and accumulates and stores the measured air pressure value as observation data observed by the observation device 20 when the car 8 stops at that floor. The normal storage unit 29 may also store other observation data observed at this time and other operating data calculated based on that observation data.

[0051] The detection unit 22 determines whether the height of the car 8 in the hoistway 3, calculated by the calculation unit 21 based on the air pressure measured by the air pressure sensor 26 when the car 8 stops, is within the pre-set stopping range for each floor. If the height of the car 8 is outside the stopping range for any floor, the detection unit 22 detects an abnormal stop of the car 8 as an unreliable condition. Alternatively, if the difference between the stored air pressure at the stopping floor calculated by the calculation unit 21 based on the car 8's position and the air pressure measured when the car 8 stops at that floor is outside a pre-set error range, the detection unit 22 detects a defective observation data as a malfunction. In this case, the detection unit 22 can also detect an unreliable condition by multiplying these air pressure differences by pre-set correction parameters, etc.

[0052] During normal operation of elevator 1, the detection unit 22 can also update the stored air pressure at any time. For example, whenever the car 8 stops at the ground floor, the detection unit 22 updates the stored air pressure based on the air pressure measured by the air pressure sensor 26. The detection unit 22 updates the stored air pressure of the ground floor using the measured air pressure value from the air pressure sensor 26. The detection unit 22 updates the stored air pressure of the first adjacent floor adjacent to the ground floor by adding the difference between the stored air pressure of the ground floor before the update and the stored air pressure of the first adjacent floor after the update. The detection unit 22 can also add the difference between the stored air pressure before the update by multiplying it by a preset correction parameter, etc., and then add it to the stored air pressure of the ground floor after the update. The detection unit 22 updates the stored air pressure of the second adjacent floor further adjacent to the first adjacent floor by adding the difference between the stored air pressure of the first adjacent floor before the update and the stored air pressure of the second adjacent floor after the update. At this time, the detection unit 22 can also update the stored air pressure using the correction parameter in the same way as the first adjacent floor. Regarding the stored air pressure of other floors, the detection unit 22 updates the pressure by sequentially adding the differences in stored air pressure between each floor. The differences in stored air pressure between each floor are either positive or negative depending on the vertical relationship between the floors. Alternatively, the detection unit 22 can update the stored air pressure of non-adjacent floors by directly adding the difference in stored air pressure between the surface layer and non-adjacent floors before the update to the stored air pressure of the surface layer after the update. In this case, the detection unit 22 can also update the stored air pressure using correction parameters, similar to how it updates the stored air pressure of adjacent floors.

[0053] When an unreliable condition is detected by the detection unit 22 due to factors such as the start-up of the field device 13, abnormal stopping of the car 8, or malfunctioning observation data from the observation device 20, the first communication unit 23 notifies the management device 14. The notification from the field device 13 may include, for example, information such as the reference air pressure stored in the first storage unit 24 and the stored air pressure for each floor. This notification may also include, for example, part or all of the observation data observed when the unreliable condition was detected and the operating data calculated based on that observation data. The notification may also also include information indicating the content of the unreliable condition detected by the detection unit 22.

[0054] In the management device 14, the second storage unit 32 stores the information contained in the notification received from the field device 13. The second storage unit 32 stores, for example, information such as the reference air pressure and the stored air pressure for each floor.

[0055] When the determination unit 33 receives a notification from the field device 13, it determines whether the difference between the air pressure in the meteorological data pre-obtained from the external service 19 and the reference air pressure included in the notification from the field device 13 is outside a preset error range. This error range can be set, for example, with a certain margin to allow for differences in air pressure caused by factors such as the difference between the altitude of the location corresponding to the air pressure in the meteorological data and the altitude of the ground surface layer of building 2. If the difference between the air pressure in the meteorological data and the reference air pressure is outside this error range, the determination unit 33 determines that the meteorological data and the reference air pressure do not match. On the other hand, if the difference between the air pressure in the meteorological data and the reference air pressure is within this error range, the determination unit 33 determines that the meteorological data and the reference air pressure match. The determination unit 33 can also determine whether the stored air pressure at the ground surface layer, etc., matches the meteorological data.

[0056] When the determination unit 33 determines that the meteorological data and the reference or stored pressure match, the management device 14 considers the relationship between the observed data and the operational data to be appropriate, and outputs a recovery command to the field device 13 through the second communication unit 31. The second communication unit 31 is an example of a command unit that outputs a recovery command to the field device 13.

[0057] On the other hand, when the determination unit 33 determines that the meteorological data and the reference or stored air pressure are mismatched, the generation unit 34 generates correction information. The correction information includes the air pressure of the meteorological data and a correction coefficient. The generation unit 34 calculates the correction coefficient to improve the accuracy of the car 8's position calculation by filtering out inherent conditions of the building 2. The correction coefficient is calculated, for example, based on experiments and simulations taking into account the conditions of the building 2, as well as machine learning or other pre-set models using historical information from other buildings with similar conditions. The generation unit 34 may also calculate the correction coefficient using information such as air pressure and temperature from meteorological data obtained from the external service 19. The generation unit 34 calculates the correction coefficient as a tuning parameter to improve the accuracy of the car 8's position calculation. The correction information generated by the generation unit 34 is output to the first communication unit 23 of the field device 13 via the second communication unit 31 along with a recovery command.

[0058] When the first communication unit 23 receives a recovery command from the management device 14, the detection unit 22 deactivates the unreliable state detection. Then, the integration unit 25 considers the unreliable state eliminated and performs integration processing, combining the operating data stored in the provisional storage unit 30 with the operating data stored in the normal storage unit 29. The integration unit 25 performs this integration processing, for example, by adding the operating data accumulated and stored in the provisional storage unit 30 to the operating data accumulated and stored in the normal storage unit 29. When the recovery command includes correction information, the first storage unit 24 updates the stored reference pressure using the air pressure from the meteorological data included in the correction information sent by the management device 14. Furthermore, the first storage unit 24 updates the stored correction coefficients using the correction coefficients included in the correction information sent by the management device 14.

[0059] Next, use Figure 4 An example of the actions of management system 12 is provided.

[0060] Figure 4 This is a flowchart illustrating an example of the operation of the management system 12 in Implementation 1.

[0061] The management device 14 acquires weather data from the external service 19 via the second communication unit 31 at a preset acquisition time (S01). The acquisition time is, for example, a preset regular time such as once or more per day.

[0062] The management device 14 updates the information such as air pressure of the meteorological data stored in the second storage unit 32 using information obtained from the external service 19 (S02).

[0063] During normal operation of elevator 1, the calculation unit 21 of the field equipment 13 acquires observation data, including the air pressure measured by the air pressure sensor 26 when the car 8 stops. The calculation unit 21 uses the acquired observation data to calculate operating data including the position of the car 8 (S03).

[0064] The field device 13 determines whether the detection unit 22 has detected an unreliable state (S04). If no unreliable state is detected, the field device 13 accumulates and stores the observed data and the operating data calculated based on the observed data in the normal storage unit 29 (S05). On the other hand, if an unreliable state is detected, the field device 13 accumulates and stores the observed data and the operating data calculated based on the observed data in the temporary storage unit 30 (S06). The first communication unit 23 notifies the management device 14 of the detection unit 22's detection of the unreliable state (S07).

[0065] When the determination unit 33 of the management device 14 receives a notification of an unreliable state from the field device 13, it determines whether the relationship between the observed data and the operating data is appropriate (S08). If the relationship between the two data is not determined to be appropriate, the generation unit 34 generates correction information (S09). Then, the management device 14 outputs a recovery command to the field device 13 from the second communication unit 31 (S10). The recovery command includes the correction information generated by the generation unit 34. In addition, in the determination of appropriateness, for example, if the determination unit 33 determines that the unreliable state is to a degree that cannot be eliminated by correction based solely on the correction information, the management device 14 may also postpone the output of the recovery command. At this time, the operating data calculated by the field device 13 regarding the operation of the elevator 1 during the period when the unreliable state has not been eliminated is accumulated and stored in the temporary storage unit 30.

[0066] After receiving a recovery command from the management device 14, the integration unit 25 of the field device 13 performs integration processing (S11). If the recovery command includes correction information, the first storage unit 24 updates information such as correction coefficients using the correction information.

[0067] As described above, the management system 12 of Embodiment 1 includes a field device 13. The field device 13 is installed in the building 2 where the elevator 1 is used. The field device 13 includes an observation device 20, a calculation unit 21, a detection unit 22, a normal storage unit 29, and a provisional storage unit 30. The observation device 20 is installed in the car 8. The observation device 20 observes observation data containing travel information of the car 8. The calculation unit 21 calculates operating data including the position of the car 8 based on the observation data observed by the observation device 20 when the car 8 stops. The detection unit 22 detects unreliable states. An unreliable state is preset to a state where the position of the car 8 in the operating data calculated by the calculation unit 21 may be unreliable. When the detection unit 22 does not detect an unreliable state, the normal storage unit 29 stores the operating data calculated by the calculation unit 21. When the detection unit 22 detects an unreliable state, the provisional storage unit 30 stores the operating data calculated by the calculation unit 21.

[0068] According to this structure, normal operating data when no unreliable state is detected and operating data when an unreliable state is detected are stored separately in the normal storage unit 29 and the temporary storage unit 30. For example, when operating data such as the position of the car 8 is stored together before and after an unreliable state is detected without continuity, operating data such as the number of opening and closing times of the car door 11 on each floor may be inaccurate due to this discontinuity. Even in this case, by separating the operating data before and after the unreliable state detection, inaccurate operating data due to data discontinuity can be suppressed. Furthermore, the operating data when an unreliable state is detected is also temporarily stored in the temporary storage unit 30, thus preventing the complete loss of operating data during that period. In this way, the generation of inaccurate data and the possibility of data loss can be suppressed, thereby suppressing the decrease in the reliability of the operating data stored by the field equipment 13.

[0069] Furthermore, the observation device 20 includes a pressure sensor 26 that measures the air pressure at the car 8's own position when the car 8 stops. The observation data includes the air pressure measured by the pressure sensor 26. The detection unit 22 detects unreliable states based on the position of the car 8 calculated by the calculation unit 21 based on the air pressure from the observation data. Additionally, the observation device 20 includes an acceleration sensor 27 that measures the vertical acceleration of the car 8. The observation data includes the acceleration measured by the acceleration sensor 27. The detection unit 22 detects unreliable states based on the acceleration from the observation data. Furthermore, the detection unit 22 detects unreliable states when the field equipment 13 is started. Therefore, even if the calculated position of the car 8 cannot be considered reliable due to abnormal stopping of the car 8 or poor observation data from the observation device 20, the operating data before and after the detection of such unreliable states are stored separately. Furthermore, even if the field equipment 13 has just started, or if the field equipment 13 has not yet determined the current floor of the car 8, the operating data before and after the detection of such unreliable states are stored separately. Therefore, the reliability of the operating data stored by the field equipment 13 can be suppressed. Furthermore, the field equipment 13 detects unreliable states through its own observation device 20, etc. Therefore, even in cases where it is difficult to obtain information from the control panel 10 of the elevator 1, such as when the management system 12 of the elevator 1 is already in place, it is possible to separately save the operating data before and after the detection of unreliable states.

[0070] Furthermore, the field device 13 includes a first communication unit 23 and an integration unit 25. When the detection unit 22 detects an unreliable state, the first communication unit 23 notifies the management device 14 of the observation data observed by the observation device 20 and the operating data calculated by the calculation unit 21. The management device 14 includes a determination unit 33 and a second communication unit 31. The determination unit 33 determines the appropriateness of the relationship between the observation data and the operating data contained in the notification from the field device 13. When the determination unit 33 determines that the relationship between the observation data and the operating data is appropriate, the second communication unit 31 outputs a recovery command to the field device 13. After receiving the recovery command from the management device 14, the integration unit 25 performs an integration process to integrate the operating data stored in the provisional storage unit 30 into the operating data stored in the normal storage unit 29. Thus, after the appropriateness is confirmed in the management device 14, the separately stored operating data before and after the detection of the unreliable state are integrated. Therefore, the reliability of the integrated operating data is further improved.

[0071] Furthermore, the management device 14 includes a generation unit 34. The generation unit 34 generates correction information used in the correction of the operating data calculation performed by the calculation unit 21. The correction information includes correction coefficients used in the correction of the observation data observed by the observation device 20. The second communication unit 31 outputs the correction information generated by the generation unit 34 along with a recovery command to the field device 13. After correcting the observation data using the correction coefficients, the calculation unit 21 calculates the operating data. Thus, the observation data used by the field device 13 in the calculation of the car 8 is corrected by the correction information generated by the management device 14. Therefore, the position of the car 8 calculated based on the observation data is more accurate. Additionally, for information unaffected by differences in the position of the car 8, such as the travel time of the car 8, the calculation unit 21 may not need to perform correction based on the correction information.

[0072] Furthermore, the operating data sometimes includes first data affected by the position of the car 8 and second data unaffected by the position of the car 8. The first data may include, for example, the number of times the car door 11 is opened and closed on each floor. The second data may include, for example, the travel time of the car 8. In this case, when the detection unit 22 detects an unreliable state, the field device 13 can store the first and second data separately in the normal storage unit 29 and the provisional storage unit 30. That is, when the detection unit 22 does not detect an unreliable state, the normal storage unit 29 stores both the first and second data of the operating data. Furthermore, even when the detection unit 22 detects an unreliable state, the normal storage unit 29 also stores the second data of the operating data. When the detection unit 22 detects an unreliable state, the provisional storage unit 30 stores the first data of the operating data. In this way, by filtering the separately stored data, it is easier to perform integrated processing and other similar procedures.

[0073] Furthermore, the first storage unit 24 can also store the stored air pressure associated with the ground surface as the same information as the reference air pressure. That is, the field device 13 can also process the stored air pressure associated with the ground surface by the first storage unit 24 itself as the reference air pressure used for calculating the position of the car 8, etc. At this time, when the car 8 is stopped at the ground surface, the first storage unit 24 updates and stores the reference air pressure by measuring the air pressure by the air pressure sensor 26.

[0074] Furthermore, the first storage unit 24 may also include multiple temporary storage units 30. In this case, when the field device 13 detects an unreliable state, it stores operating data, etc., in any one of the temporary storage units 30. Here, before the unreliable state is eliminated, other unreliable states may occur for other reasons. At this time, the field device 13 further stores the operating data, etc., after the occurrence of other unreliable states in other temporary storage units 30 separately. That is, whenever an unreliable state occurs, the first storage unit 24 stores the operating data separately in layers. Regarding the operating data stored separately in layers, the integration unit 25 performs integration processing sequentially in the reverse order of separation.

[0075] Next, use Figure 5 An example of the hardware structure of the management system 12 is given.

[0076] Figure 5 This is a hardware structure diagram of the main parts of the management system 12 in Implementation Method 1.

[0077] 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 circuitry. The processing circuitry has at least one processor 100a and at least one memory 100b. The processing circuitry may also have at least one piece of dedicated hardware, either together with or in place of the processor 100a and memory 100b.

[0078] In the case where the processing circuit has a processor 100a and a memory 100b, the functions of the management system 12 are implemented by software, firmware, or a combination of software and firmware. At least one of the software and 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, thereby implementing the functions of the management system 12. The program may also be a program package containing multiple subroutines, modules, or libraries, etc. The program is sometimes referred to as a program product.

[0079] The processor 100a is also called a CPU (Central Processing Unit), processing device, arithmetic device, microprocessor, microcomputer, or DSP. The memory 100b is composed of non-volatile or volatile semiconductor memories such as RAM, ROM, flash memory, EPROM, and EEPROM.

[0080] When the processing circuit has dedicated hardware, the processing circuit is implemented, for example, by a single circuit, a composite circuit, a programmable processor, a parallel programmable processor, an ASIC, an FPGA, or a combination thereof.

[0081] Each function of the management system 12 can be implemented separately by processing circuitry. Alternatively, each function of the management system 12 can also be implemented uniformly by processing circuitry. Regarding each function of the management system 12, some can be implemented by dedicated hardware, and others by software or firmware. In this way, the processing circuitry implements each function of the management system 12 through dedicated hardware, software, firmware, or a combination thereof.

[0082] Implementation Method 2

[0083] In Embodiment 2, the differences from the examples disclosed in Embodiment 1 are described in particular detail. Features not described in Embodiment 2 may also be any features of the examples disclosed in Embodiment 1.

[0084] Figure 6 This is a block diagram showing the structure of the management system 12 of the elevator 1 according to Embodiment 2.

[0085] The field equipment 13 of the management system 12 includes an observation device 20, a calculation unit 21, a detection unit 22, a first communication unit 23, a first storage unit 24, an integration unit 25, and a calibration unit 35.

[0086] The correction unit 35 is a component equipped with the function of correcting the operating data stored in the provisional storage unit 30. The correction unit 35 is, for example, installed in the edge device 17. When the detection unit 22 detects an unreliable state, the correction unit 35 performs self-correction on the operating data stored in the provisional storage unit 30 based on the operating data calculated by the calculation unit 21. For example, if overshoot and undershoot occur at the position of the car 8 calculated by the calculation unit 21, the correction unit 35 performs self-correction on the operating data.

[0087] Here, using an example of elevator 1 that can stop seven times on each of the seven floors of building 2, the self-correction of the operation data by the correction unit 35 is explained. In this example of elevator 1, the first floor is set as the ground floor.

[0088] For example, when an unreliable state such as the start-up of field device 13 is detected, field device 13 does not accurately determine the position of car 8. At this time, the calculation unit 21 calculates an arbitrary floor as the temporary position of car 8. In this example, the calculation unit 21 calculates the 1st floor, which is the ground level, as the temporary position of car 8. On the other hand, suppose that the actual position of car 8 at the time of unreliability detection is the 4th floor. In this case, the position of car 8 identified by field device 13 in the provisional storage unit 30 is inconsistent with the actual position of car 8. In this example, the position of car 8 determined by field device 13 is not used for the travel control of car 8, etc. Therefore, the control panel 10 of elevator 1 accurately determines the position of car 8 through the elevator 1's own sensors or switches, thereby performing normal operation.

[0089] Then, the control panel 10 moves the car 8 down two floors based on user calls during normal operation. The calculation unit 21 calculates the car 8's movement down two floors as operating data, for example, using acceleration detected by the acceleration sensor 27. At this time, the actual position of the car 8 is the second floor, but the position of the car 8 identified by the field device 13 in the provisional storage unit 30 is equivalent to the second basement level. Here, the second basement level is below the lowest floor (the first floor), and therefore does not actually exist. Thus, the field device 13 identifies the car 8 as being on a non-existent floor below the lowest floor, resulting in a sinking. When this sinking occurs, the correction unit 35 corrects the position of the car 8 held by the field device 13 in the provisional storage unit 30 to the lowest floor (the first floor). Furthermore, even in the case of an overshoot where the field device 13 identifies the car 8 as being on a non-existent floor above the highest floor, the correction unit 35 similarly corrects the position of the car 8 held by the field device 13 in the provisional storage unit 30 to the highest floor.

[0090] Then, based on user calls during normal operation, the control panel 10 causes the car 8 to move down one floor. The calculation unit 21 calculates that the car 8 has moved down one floor. At this time, the actual position of the car 8 is the first floor, but the position of the car 8 identified by the field equipment 13 in the provisional storage unit 30 is equivalent to the basement level. If sinking occurs again, the correction unit 35 corrects the position of the car 8 held by the field equipment 13 in the provisional storage unit 30 back to the lowest floor, the first floor. At this point, the position of the car 8 identified by the field equipment 13 in the provisional storage unit 30 is consistent with the actual position of the car 8, but the field equipment 13 cannot be certain that further sinking will not occur. Therefore, the correction unit 35 continues self-correction.

[0091] Then, the control panel 10 moves the car 8 upwards by 6 floors based on user calls during normal operation. The calculation unit 21 calculates that the car 8 has moved upwards by 6 floors. At this time, the actual position of the car 8 and the position of the car 8 identified by the field equipment 13 in the provisional storage unit 30 are both the 7th floor. The field equipment 13 identifies the car 8 as stopping at both the 1st floor (the lowest floor) and the 7th floor (the highest floor) in the provisional storage unit 30, therefore, it is determined that there will be no further overshoot or undershoot. At this time, the correction unit 35 completes self-correction.

[0092] Figure 7 This is a flowchart illustrating an example of the operation of the management system 12 in Implementation 2.

[0093] In steps S01 to S06 and steps S08 to S11, the management system 12 of Embodiment 2 is processed in the same way as the management system 12 of Embodiment 1. In step S12, following step S06, the calibration unit 35 of the field device 13 performs self-calibration based on the operating data calculated by the calculation unit 21. In step S07a, after the self-calibration is completed, the first communication unit 23 notifies the management device 14 of the detection unit 22 of the unreliable state. This notification may also include information indicating the content of the self-calibration performed by the calibration unit 35.

[0094] As explained above, the field device 13 of the management system 12 in Embodiment 2 includes a calibration unit 35. When the detection unit 22 detects an unreliable state, the calibration unit 35 corrects the operating data stored in the provisional storage unit 30 based on the operating data calculated by the calculation unit 21. After the calibration unit 35 performs self-calibration, it performs integration processing, etc., thus further improving the reliability of the integrated operating data.

[0095] Implementation Method 3

[0096] In Embodiment 3, the differences from the examples disclosed in Embodiment 1 or Embodiment 2 are described in particular detail. Features not described in Embodiment 3 may also be any features of the examples disclosed in Embodiment 1 or Embodiment 2.

[0097] Figure 8 This is a block diagram showing the structure of the management system 12 of the elevator 1 according to embodiment 3.

[0098] The field equipment 13 of the management system 12 includes an observation device 20, a calculation unit 21, a detection unit 22, a first communication unit 23, a first storage unit 24, an integration unit 25, a display unit 36, and an operation unit 37.

[0099] Display unit 36 ​​is a component equipped with the function of displaying information to the external field device 13. Display unit 36 ​​may be, for example, an indicator light using LEDs (Light Emitting Diodes) or a 7-segment display. Display unit 36 ​​may also be an interface for connecting to and outputting display signals to a maintenance terminal device used by a maintenance personnel. Display unit 36 ​​is provided on one or both of the car device 16 and the edge device 17. Display unit 36 ​​displays information to the maintenance personnel of elevator 1. Operation unit 37 is a component equipped with the function of receiving operations from the external field device 13. Operation unit 37 may be, for example, a rotary switch or a button. Operation unit 37 receives operations performed by the maintenance personnel. Operation unit 37 may also be an interface for connecting to and receiving operation signals from a maintenance terminal device used by a maintenance personnel. Operation unit 37 is provided on one or both of the car device 16 and the edge device 17. Display unit 36 ​​and operation unit 37 are provided close to each other within the field device 13, for example.

[0100] Figure 9 This is a flowchart illustrating an example of the operation of the management system 12 in embodiment 3.

[0101] In steps S03 to S06, the management system 12 of Embodiment 3 is processed in the same way as the management system 12 of Embodiment 1. In step S13, following step S06, the display unit 36 ​​of the field device 13 displays to the maintenance personnel that the detection unit 22 has detected an unreliable state. The display unit 36 ​​can display the unreliable state even when the maintenance personnel are not in the building 2. The maintenance personnel are dispatched to the building 2 according to instructions from the operator from the information center, or during the scheduled maintenance of the elevator 1. The maintenance personnel determine whether the operating data stored in the provisional storage unit 30 is appropriate based on the display of the display unit 36. Then, in step S14, the operation unit 37 of the field device 13 accepts the recovery operation performed by the maintenance personnel. The recovery operation may also include the manual correction of the operating data such as the position of the car 8 stored in the provisional storage unit 30. Then, in step S11b, the integration unit 25 of the field device 13 performs integration processing after the maintenance personnel perform the recovery operation.

[0102] As explained above, the field device 13 of the management system 12 in Embodiment 3 includes a calibration unit 35 and an operation unit 37. The display unit 36 ​​displays to the maintenance personnel that the detection unit 22 detected an unreliable state. The operation unit 37 accepts the operation performed by the maintenance personnel. After the operation unit 37 accepts the recovery operation performed by the maintenance personnel, the integration unit 25 performs integration processing. Thus, after the maintenance personnel confirms the appropriateness, the separately stored operating data before and after the detection of the unreliable state are integrated. Therefore, the reliability of the integrated operating data is further improved.

[0103] To summarize the above description, the preferred structures of this disclosure include the following structures shown as appendices.

[0104] (Postscript 1)

[0105] A field device for an elevator management system, the field device being installed in a building using an elevator and included in the elevator management system, the elevator including a car traveling in a vertical direction, wherein the field device of the elevator management system has:

[0106] An observation device is installed in the car to observe observation data including the car's driving information;

[0107] The calculation unit calculates operating data, including the position of the car, based on the observation data observed by the observation device when the car stops.

[0108] The detection unit detects a pre-defined unreliable state in the operating data calculated by the calculation unit, where the position of the car may be unreliable.

[0109] The storage unit typically stores the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state; and

[0110] A provisional storage unit stores the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

[0111] (Postscript 2)

[0112] According to the field equipment of the elevator management system described in Appendix 1, wherein,

[0113] The observation device includes a barometric pressure sensor that measures the air pressure at its own location when the car stops.

[0114] The observation data includes the air pressure measured by the barometric pressure sensor.

[0115] The detection unit detects the unreliable state based on the position of the car calculated by the calculation unit based on the air pressure from the observed data.

[0116] (Note 3)

[0117] According to Appendix 1 or Appendix 2, the field equipment of the elevator management system, wherein,

[0118] The observation device includes an acceleration sensor that measures the vertical acceleration of the car.

[0119] The observation data includes the acceleration measured by the accelerometer.

[0120] The detection unit detects the unreliable state based on the acceleration of the observed data.

[0121] (Postscript 4)

[0122] The field equipment of the elevator management system according to any one of Appendix 1 to Appendix 3, wherein,

[0123] The detection unit detects the unreliable state when the field equipment is started.

[0124] (Note 5)

[0125] The field equipment of the elevator management system according to any one of Appendix 1 to Appendix 4, wherein,

[0126] The field device has a display unit that shows the maintenance personnel the unreliable state detected by the detection unit.

[0127] (Note 6)

[0128] According to Appendix 5, the field equipment of the elevator management system includes,

[0129] The field equipment of the elevator management system includes:

[0130] The operations unit, which accepts operations performed by the maintenance personnel; and

[0131] The integration unit, after the operation unit accepts the recovery operation performed by the maintenance personnel, performs integration processing to integrate the operating data stored in the temporary storage unit into the operating data stored in the normal storage unit.

[0132] (Note 7)

[0133] The field equipment of the elevator management system according to any one of Appendix 1 to Appendix 6, wherein,

[0134] The operating data includes first data that is affected by the position of the car and second data that is not affected by the position of the car.

[0135] The normal storage unit stores both the first data and the second data when the detection unit does not detect the unreliable state, and stores the second data when the detection unit detects the unreliable state.

[0136] The provisional storage unit stores the first data when the detection unit detects the unreliable state.

[0137] (Note 8)

[0138] The field equipment of the elevator management system according to any one of Appendix 1 to Appendix 7, wherein,

[0139] The field equipment of the elevator management system has a calibration unit that, when the detection unit detects the unreliable state, corrects the operating data stored in the provisional storage unit based on the operating data calculated by the calculation unit.

[0140] (Note 9)

[0141] An elevator management system, the elevator comprising a car traveling in a vertical direction, wherein the elevator management system has:

[0142] Field equipment, which is installed in the building where the elevator is used; and

[0143] The management device communicates with the field devices.

[0144] The field equipment has:

[0145] An observation device is installed in the car to observe observation data including the car's driving information;

[0146] The calculation unit calculates operating data, including the position of the car, based on the observation data observed by the observation device when the car stops.

[0147] The detection unit detects a pre-defined unreliable state in the operating data calculated by the calculation unit, where the position of the car may be unreliable.

[0148] The storage unit typically stores the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state; and

[0149] A provisional storage unit stores the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

[0150] (Postscript 10)

[0151] According to the elevator management system described in Appendix 9, wherein,

[0152] The field equipment has:

[0153] The notification unit, when the detection unit detects the unreliable state, notifies the management device of the observation data observed by the observation device and the operating data calculated by the calculation unit; and

[0154] The integration unit performs integration processing, which integrates the operating data stored in the provisional storage unit into the operating data stored in the normal storage unit.

[0155] The management device has:

[0156] The determination unit determines the appropriateness of the relationship between the observation data and the operational data contained in the notification from the field equipment; and

[0157] The command unit, when the determination unit determines that the relationship between the observed data and the operational data is appropriate, outputs a recovery command to the field equipment.

[0158] The integration unit performs the integration process after receiving the recovery command from the management device.

[0159] (Postscript 11)

[0160] According to the elevator management system described in Appendix 10, wherein,

[0161] The management device has a generation unit that generates correction information used in the correction of the calculations of the operating data performed by the calculation unit.

[0162] The correction information includes correction coefficients used in correcting the observation data observed by the observation device.

[0163] The command unit outputs the correction information generated by the generation unit, along with the recovery command, to the field device.

[0164] The calculation unit calculates the operating data after correcting the observed data using the correction coefficient.

Claims

1. A field device for an elevator management system, the field device being installed in a building using an elevator and included in the elevator management system, the elevator comprising a car traveling in a vertical direction, wherein, The field equipment of the elevator management system includes: An observation device is installed in the car to observe observation data including the car's driving information; The calculation unit calculates operating data, including the position of the car, based on the observation data observed by the observation device when the car stops. The detection unit detects a pre-defined unreliable state in the operating data calculated by the calculation unit, where the position of the car may be unreliable. The storage unit typically stores the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state. as well as A provisional storage unit stores the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

2. The field equipment of the elevator management system according to claim 1, wherein, The observation device includes a barometric pressure sensor that measures the air pressure at its own location when the car stops. The observation data includes the air pressure measured by the barometric pressure sensor. The detection unit detects the unreliable state based on the position of the car calculated by the calculation unit based on the air pressure from the observed data.

3. The field equipment of the elevator management system according to claim 1, wherein, The observation device includes an acceleration sensor that measures the vertical acceleration of the car. The observation data includes the acceleration measured by the accelerometer. The detection unit detects the unreliable state based on the acceleration of the observed data.

4. The field equipment of the elevator management system according to claim 1, wherein, The detection unit detects the unreliable state when the field equipment is started.

5. The field equipment for the elevator management system according to any one of claims 1 to 4, wherein, The field device has a display unit that shows the maintenance personnel the unreliable state detected by the detection unit.

6. The field equipment for the elevator management system according to claim 5, wherein, The field equipment of the elevator management system includes: The operations department accepts the operations performed by the maintenance personnel; as well as The integration unit, after the operation unit accepts the recovery operation performed by the maintenance personnel, performs integration processing to integrate the operating data stored in the temporary storage unit into the operating data stored in the normal storage unit.

7. The field equipment for the elevator management system according to any one of claims 1 to 4, wherein, The operating data includes first data that is affected by the position of the car and second data that is not affected by the position of the car. The normal storage unit stores both the first data and the second data when the detection unit does not detect the unreliable state, and stores the second data when the detection unit detects the unreliable state. The provisional storage unit stores the first data when the detection unit detects the unreliable state.

8. The field equipment for the elevator management system according to any one of claims 1 to 4, wherein, The field equipment of the elevator management system has a calibration unit that, when the detection unit detects the unreliable state, corrects the operating data stored in the provisional storage unit based on the operating data calculated by the calculation unit.

9. A management system for an elevator, the elevator comprising a car traveling in a vertical direction, wherein, The elevator management system has the following features: Field equipment, which is installed in the building where the elevator is used; and The management device communicates with the field devices. The field equipment has: An observation device is installed in the car to observe observation data including the car's driving information; The calculation unit calculates operating data, including the position of the car, based on the observation data observed by the observation device when the car stops. The detection unit detects a pre-defined unreliable state in the operating data calculated by the calculation unit, where the position of the car may be unreliable. The storage unit typically stores the operating data calculated by the calculation unit when the detection unit does not detect the unreliable state. as well as A provisional storage unit stores the operating data calculated by the calculation unit when the detection unit detects the unreliable state.

10. The elevator management system according to claim 9, wherein, The field equipment has: The notification unit, when the detection unit detects the unreliable state, notifies the management device of the observation data observed by the observation device and the operating data calculated by the calculation unit; as well as The integration unit performs integration processing, which integrates the operating data stored in the provisional storage unit into the operating data stored in the normal storage unit. The management device has: The determination unit determines the appropriateness of the relationship between the observation data and the operational data contained in the notification from the field equipment; as well as The command unit, when the determination unit determines that the relationship between the observed data and the operational data is appropriate, outputs a recovery command to the field equipment. The integration unit performs the integration process after receiving the recovery command from the management device.

11. The elevator management system according to claim 10, wherein, The management device has a generation unit that generates correction information used in the correction of the calculations of the operating data performed by the calculation unit. The correction information includes correction coefficients used in correcting the observation data observed by the observation device. The command unit outputs the correction information generated by the generation unit, along with the recovery command, to the field device. The calculation unit calculates the operating data after correcting the observed data using the correction coefficient.

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