JP6521195B2 - Seismic detector for elevators - Google Patents

Description

  The present invention relates to a seismic sensor for an elevator.

  2. Description of the Related Art Conventionally, there has been known a system that performs earthquake control operation and automatic diagnosis operation of an elevator according to the output of an earthquake detector when an earthquake occurs. As a technique related to earthquake control operation of an elevator, for example, there is one described in Patent Document 1 below.

Japanese Patent Application Publication No. 2006-160449

  The output of the conventional seismic sensor is, for example, a simple contact signal that merely indicates that the acceleration due to the shaking has exceeded a reference value. For this reason, the conventional seismic sensor is difficult to use when trying to extend the service of the elevator at the time of an earthquake occurrence.

  The present invention was made to solve the above-mentioned problems. The purpose is to provide a seismic sensor for an elevator that can extend the service of the elevator at the time of an earthquake.

The earthquake sensor for an elevator according to the present invention detects, as a swing time, a time in which an acceleration detection unit that detects a shake as acceleration and a time in which an acceleration exceeding a preset threshold is continuously detected by the acceleration detection unit. When the interval from the end time of the first swing time to the start time of the second swing time is less than a predetermined time, one from the start time of the first swing time to the end time of the second swing time A period of time from when the acceleration detected by the acceleration detection unit exceeds the threshold until it becomes less than or equal to the threshold. 1 from the start of the numbers and shake time detector indicating the maximum acceleration is a maximum value of the detected acceleration by the acceleration detecting unit is a first swing time until the end of the second swing time in Comprising of a communication unit that transmits successive and numerical values indicating the one continuous shaking time upon detecting a swing time to the control panel, the.

  In the present invention, the communication unit has a function of performing two-way communication with the control panel of the elevator, and transmits a numerical value indicating the maximum acceleration detected by the acceleration detection unit to the control panel. Therefore, according to the present invention, the service of the elevator at the time of the occurrence of an earthquake can be expanded.

It is a schematic diagram which shows an example of the structure of an elevator. FIG. 1 is a functional block diagram of an elevator automatic recovery system according to a first embodiment. It is a figure for demonstrating restoration of the elevator after an earthquake occurrence. 5 is a flowchart showing an operation example of the elevator automatic recovery system according to the first embodiment. It is a hardware block diagram of a maintenance apparatus.

  The earthquake sensor for elevators and the automatic restoration system for elevators will be described in detail with reference to the attached drawings. In each of the drawings, the same or corresponding parts are denoted by the same reference numerals. Duplicate descriptions will be simplified or omitted as appropriate.

Embodiment 1
FIG. 1 is a schematic view showing an example of the structure of an elevator.

  As shown in FIG. 1, the elevator 1 includes a hoistway 2, a hoist 3, a rope 4, a car 5, a counterweight 6, a control board 7 and an earthquake sensor 8. The hoistway 2 is formed, for example, to penetrate each floor of a building (not shown). The hoisting machine 3 is provided, for example, in a machine room (not shown) or the like. The rope 4 is wound around the hoisting machine 3. The car 5 and the counterweight 6 are suspended by the rope 4 in the hoistway 2. The car 5 and the counterweight 6 are raised and lowered by driving the hoisting machine 3. The hoisting machine 3 is controlled by a control board 7.

  As shown in FIG. 1, the control panel 7 and the seismic sensor 8 are provided, for example, in the hoistway 2. The control panel 7 and the seismic sensor 8 are provided, for example, in a pit. The control panel 7 and the seismic sensor 8 may be provided, for example, in a machine room or the like. The earthquake sensor 8 is electrically connected to the control panel 7.

  The control panel 7 is electrically connected to the hoisting machine 3 and the maintenance device 9. The maintenance device 9 has a function of communicating with the monitoring center 10. That is, the control panel 7 can communicate with the monitoring center 10 via the maintenance device 9.

  The control panel 7 and the maintenance device 9 are provided, for example, in a building where the elevator 1 is installed. The monitoring center 10 is provided, for example, in a building different from the building in which the elevator 1 is installed. The monitoring center 10 is, for example, a server or the like provided in a management company of the elevator 1.

  The monitoring center 10 may be able to communicate with the control boards 7 of a plurality of elevators 1, for example. The monitoring center 10 may be capable of communicating with, for example, a plurality of maintenance devices 9 provided in different buildings.

  FIG. 2 is a functional block diagram of the elevator automatic recovery system according to the first embodiment.

  As shown in FIG. 2, the control panel 7 has an operation control unit 11. The earthquake sensor 8 includes a communication unit 12, an acceleration detection unit 13, a swing direction detection unit 14, a swing time detection unit 15, and a self-diagnosis unit 16. The maintenance device 9 includes a sensor control unit 17, an automatic diagnosis control unit 18, a storage unit 19, and a notification unit 20. The monitoring center 10 has a storage unit 21 and an update unit 22.

  The operation control unit 11 controls the operation of the elevator 1. The operation control unit 11 controls the movement of the car 5 by controlling the drive of the hoisting machine 3, for example. The operation control unit 11 controls the opening and closing of the door of the elevator 1 via, for example, a door opening and closing device (not shown).

  The communication unit 12 communicates with the control board 7. The signals transmitted and received between the communication unit 12 and the control panel 7 are not contact signals, for example. The transmission method between the communication unit 12 and the control panel 7 is, for example, serial transmission. The communication unit 12 transmits information to the control board 7. The communication unit 12 receives information from the control board 7. That is, the seismic sensor 8 has a function to perform two-way communication with the control panel 7. In addition, the seismic sensor 8 has a function of performing bidirectional communication with the maintenance device 9 via the control panel 7.

  The acceleration detection unit 13 detects a shake due to an earthquake or the like as an acceleration. The acceleration detection unit 13 constantly detects, for example, acceleration. The acceleration is represented, for example, by a Gal value.

  The swing direction detection unit 14 detects an acceleration in each swing direction. The swing direction includes, for example, the horizontal direction and the vertical direction. As the swing direction, for example, directions corresponding to the X axis, the Y axis, and the Z axis orthogonal to one another may be set. Among the swing directions, as the horizontal direction, for example, a direction corresponding to four azimuths or eight azimuths may be set. Of the swing directions, the horizontal direction may be set, for example, according to the planar shape of the building. The swing direction detection unit 14 constantly detects, for example, the acceleration in each swing direction. The acceleration for each swing direction is represented, for example, by a Gal value associated with the direction.

  The swing direction detection unit 14 may calculate the acceleration in each swing direction by, for example, decomposing the acceleration detected by the acceleration detection unit 13. The swing direction detection unit 14 may detect, for example, acceleration in each swing direction by a plurality of sensors corresponding to each of the swing directions.

  The swing time detection unit 15 detects a swing time. The shaking time is, for example, a time when shaking at an acceleration exceeding a preset threshold continues. The swing time is, for example, a time during which an acceleration exceeding the threshold is continuously detected by the acceleration detection unit 13. For example, when the interval from the end time of the first swing time to the start time of the second swing time is less than a predetermined time, the swing time detection unit 15 starts the second swing time from the start time of the first swing time. The end of the swing time may be detected as one continuous swing time. The swing time is expressed, for example, in seconds or minutes.

  The communication unit 12 transmits, for example, various numerical values detected by the acceleration detection unit 13, the swing direction detection unit 14 and the swing time detection unit 15 to the control panel 7. The communication unit 12 transmits various numerical values, for example, when the acceleration detection unit 13 detects an acceleration exceeding a threshold. The control panel 7 transmits, for example, various numerical values to the maintenance device 9.

The communication unit 12 transmits, for example, a numerical value indicating the maximum acceleration detected by the acceleration detection unit 13. The communication unit 12 transmits, for example, a numerical value indicating the maximum acceleration in each swing direction detected by the swing direction detection unit 14. The communication unit 12 transmits, for example, a numerical value indicating the been rocking is time detected by the shake time detector 15. Thus, the earthquake sensor 8 detects a shake as an acceleration and outputs a numerical value based on the detected acceleration.

  The maximum acceleration is, for example, the maximum value of the acceleration detected by the acceleration detecting unit 13 in a period from when the acceleration detected by the acceleration detecting unit 13 exceeds the threshold until it becomes equal to or less than the threshold. The maximum acceleration for each swing direction is, for example, the maximum value of the acceleration detected by the swing direction detection unit 14 in the period.

  The sensor control unit 17 transmits, for example, a reset signal to the earthquake sensor 8. For example, when receiving the reset signal, the earthquake sensor 8 stops the output of the numerical value based on the acceleration.

  The sensor control unit 17 performs, for example, the alive check of the earthquake sensor 8 periodically. The sensor control unit 17 transmits, for example, a request signal to the earthquake sensor 8. The communication unit 12 returns, for example, a response signal to the request signal. The sensor control unit 17 determines that the earthquake sensor 8 is operating, for example, when receiving a response signal within a predetermined time after transmitting the request signal. For example, when the sensor control unit 17 does not receive a response signal within a predetermined time after transmitting the request signal, the seismic sensor 8 is not operating or the connection between the control panel 7 and the seismic sensor 8 is disconnected. It determines that it is done.

  The sensor control unit 17 transmits, for example, a function diagnosis command to the earthquake sensor 8. The self-diagnosis unit 16 performs, for example, a diagnosis operation based on a function diagnosis command. The diagnostic operation is, for example, to check whether the detection of acceleration or the reset of the seismic sensor 8 is properly performed. The communication unit 12 sends, for example, the result of diagnosis by the self-diagnosis unit 16 to the maintenance device 9.

  The automatic diagnosis control unit 18 has a function of executing an automatic diagnosis operation via the control panel 7. The automatic diagnosis operation is an operation performed after an actual earthquake to determine whether the elevator 1 may be restored automatically. By the automatic diagnosis operation, for example, it is determined whether there is an object loss in the device of the elevator 1 or not.

  The automatic diagnosis control unit 18 executes an automatic diagnosis operation, for example, when the maximum acceleration output by the earthquake sensor 8 is included in a certain range equal to or less than the general reference value. The general reference value is preset, for example, based on the earthquake resistance standard or the like defined by the law. The general reference value is represented by, for example, a Gal value.

  For example, even if the maximum acceleration output by the earthquake sensor 8 exceeds the general reference value, the automatic diagnosis control unit 18 may determine that the numerical value based on the acceleration output by the earthquake sensor 8 satisfies the individual reference To perform an automatic diagnostic operation. The individual reference is set, for example, for each building where the elevator 1 is installed or for each elevator 1. That is, the content of the individual standard may differ depending on the building or elevator 1.

  The storage unit 19 of the maintenance device 9 stores individual reference data 23. The individual reference data 23 is, for example, data indicating an individual reference set for the elevator 1 controlled by the control panel 7 connected to the maintenance device 9 or the building in which the elevator 1 is installed.

  The individual standard for a certain elevator 1 or a building in which the elevator 1 is installed is set, for example, based on the acceleration due to the past shaking that did not cause the elevator 1 to cause property loss. The individual reference is set, for example, based on the acceleration previously output by the elevator 1 or the earthquake sensor 8 provided in the building. The individual reference is set, for example, as an upper limit value of numerical values based on the acceleration output by the earthquake sensor 8.

  The individual reference includes, for example, a numerical value indicating the maximum acceleration due to the past shaking that did not cause the elevator 1 to lose property. The numerical value may be, for example, a value larger than the general reference value. For example, even if the maximum acceleration due to an earthquake exceeds the general reference value, the automatic diagnosis control unit 18 executes the automatic diagnosis operation when the maximum acceleration is equal to or less than the value included in the individual reference. The automatic diagnosis control unit 18 does not execute the automatic diagnosis operation, for example, when the maximum acceleration due to the earthquake exceeds the numerical value included in the individual reference.

  The individual reference includes, for example, a numerical value indicating the maximum acceleration for each swing direction due to the past swing that did not cause the elevator 1 to lose property. The numerical value may be, for example, a value larger than the general reference value. For example, even if the maximum acceleration due to the earthquake exceeds the general reference value, the automatic diagnosis control unit 18 performs the automatic diagnosis operation when the maximum acceleration for each direction of the shaking due to the earthquake is equal to or less than the value included in the individual reference. Run. The automatic diagnosis control unit 18 does not execute the automatic diagnosis operation, for example, when the maximum acceleration in each shaking direction due to an earthquake exceeds the value included in the individual reference.

Individual standards include, for example, a numerical value indicating the Rocked by past shaking did not generate damage only to the elevator 1 time. Automatic diagnosis control unit 18, for example, even the maximum acceleration caused by an earthquake exceeds a general reference value to or less than the number that time is rocking due to earthquake included in the individual reference performs automatic diagnosis operation. Automatic diagnosis control unit 18, for example, if it exceeds the number that time is rocking due to earthquake included in the individual reference does not execute the automatic diagnosis operation.

Individual basis, for example, numerical values indicating the maximum acceleration according to past shaking did not generate damage only to elevator 1, comprising two or more of the numerical value indicating the numeric and rocking is time shows a maximum acceleration for each swing direction It may be Automatic diagnosis control unit 18, for example, based on a result of comparison between two or more and the individual standard of maximum acceleration, maximum acceleration and rocking is time for each swing direction output by the seismic sensor 8, the automatic diagnostic operation It may be determined whether or not to execute.

The reporting unit 20 reports to the monitoring center 10. The reporting unit 20 reports, for example, information related to the operation of the maintenance device 9 to the monitoring center 10. The reporting unit 20 reports, for example, information indicating the state of the elevator 1 obtained from the control panel 7 to the monitoring center 10. The reporting unit 20 reports, for example, information obtained from the earthquake sensor 8 to the monitoring center 10. Reporting unit 20, for example, to report the maximum acceleration output by the seismic sensor 8 when the earthquake occurred, the maximum acceleration and swing is time, etc. for each swing direction in the monitoring center 10.

  For example, when it is determined from the result of the automatic diagnosis operation that the property loss has not occurred in the elevator 1, the notification unit 20 notifies the monitoring center 10 to that effect.

  For example, when it is determined from the result of the automatic diagnosis operation that the property loss has occurred in the elevator 1, the notification unit 20 requests the monitoring center 10 to dispatch a maintenance worker.

  For example, when the numerical value based on the acceleration output by the earthquake sensor 8 does not satisfy the individual standard, the notification unit 20 requests the monitoring center 10 to dispatch the maintenance worker.

  The maintenance worker carries out the inspection work of the elevator 1 in response to the dispatch request. The maintenance worker reports completion to the monitoring center 10 after the work is completed. The completion report may be performed, for example, via the control panel 7 or the maintenance device 9 or the like. The completion report may be made directly to the monitoring center 10, for example. The content of the completion report includes, for example, information indicating whether or not property loss has actually occurred in the elevator 1.

  The storage unit 21 of the monitoring center 10 stores accumulated data 24 and individual reference data 25.

The accumulated data 24 is, for example, data indicating a numerical value based on the acceleration output in the past by the earthquake sensor 8 corresponding to the elevator 1 to be monitored by the monitoring center 10. The accumulated data 24 may include output data of a plurality of seismic sensors 8 corresponding to different elevators 1 or different buildings. The stored data 24 may, for example, include the maximum acceleration, maximum acceleration and rocking is time for each swing direction and the like.

  The individual reference data 25 is, for example, data indicating an individual reference set for an elevator 1 to be monitored by the monitoring center 10 or a building where the elevator 1 is installed. The individual reference data 25 may include a plurality of individual references corresponding to different elevators 1 or different buildings. The individual reference data 25 is set, for example, based on the accumulated data 24.

  The update unit 22 changes the individual reference of the building or elevator 1 corresponding to the earthquake detector 8 among the individual reference data 25 based on, for example, the latest output data of the earthquake detector 8. The updating unit 22 changes, for example, the individual reference data 23 corresponding to the changed individual reference in the individual reference data 25. That is, the updating unit 22 updates the individual reference stored in the maintenance device 9. The individual reference data 23 stored in the storage unit 19 is not changed by the operation on the control panel 7 and the maintenance device 9, for example.

  For example, when the maximum acceleration due to the earthquake exceeds the general reference value, the updating unit 22 does not satisfy the individual standard with the numerical value based on the acceleration output by the earthquake sensor 8 and the property loss occurs in the elevator 1 If there is a completion report indicating that it did not, set the value as a new individual standard. That is, for example, the updating unit 22 does not generate any property loss in the elevator 1 although the present shaking is larger than the previous shaking in which the property loss was not generated in the elevator 1, for example. Amend individual criteria upwards.

  For example, when the maximum acceleration due to the earthquake exceeds the general reference value, the updating unit 22 satisfies the individual reference by the numerical value based on the acceleration output by the earthquake sensor 8 and the property loss occurs in the elevator 1 If there is a completion report that indicates the event, set the value as a new individual standard. That is, the updating unit 22 is, for example, separate when there is a loss of property in the elevator 1 although the current swing is smaller than the previous swing that did not cause the loss in the elevator 1. Correct the criteria downward.

  FIG. 3 is a diagram for explaining the restoration of the elevator after the occurrence of the earthquake.

  FIG. 3 shows an example of the action according to the value of the maximum acceleration output by the earthquake sensor 8. As shown in FIG. 3, for example, Gal values corresponding to “special low”, “low”, “high”, and “diagnosis” are set as the reference of the maximum acceleration output by the earthquake sensor 8. “High” corresponds to, for example, a general reference value set for the earthquake resistant class A elevator 1. The “diagnosis” corresponds to, for example, a general reference value set for the earthquake resistant class S elevator 1.

  For example, when the maximum acceleration output by the earthquake sensor 8 is equal to or less than “special low”, normal traveling of the elevator 1 is continued.

  For example, if the maximum acceleration output by the earthquake sensor 8 is greater than "low" and less than or equal to "low", the elevator 1 is automatically reset a predetermined time after it has stopped. The elevator 1 resumes operation after the automatic reset.

  For example, when the maximum acceleration output by the earthquake sensor 8 is greater than “low” and not more than “high”, the automatic diagnosis operation of the elevators 1 of the seismic class A and the seismic class S is performed.

  For example, when the maximum acceleration output by the earthquake sensor 8 is greater than "high" and less than or equal to "diagnosis", automatic diagnosis operation of the earthquake resistant class S elevator 1 is performed.

  For example, conventionally, when the maximum acceleration output by the earthquake sensor 8 is greater than "high", the earthquake resistant class A elevator 1 needs to be restored by a maintenance worker. Also, for example, conventionally, when the maximum acceleration output by the earthquake sensor 8 is larger than the “diagnosis”, the elevator 1 of the earthquake resistant class S needs to be restored by the maintenance worker. On the other hand, according to the first embodiment, the automatic diagnosis operation of the elevator 1 is performed based on the individual criteria even if the maximum acceleration output by the earthquake sensor 8 is larger than "high" or "diagnosis". To be done.

  FIG. 4 is a flowchart showing an operation example of the elevator automatic recovery system according to the first embodiment.

  When an earthquake occurs, the automatic diagnosis control unit 18 determines whether or not the maximum acceleration output by the earthquake sensor 8 is less than or equal to the "extra low" (step S101). If it is determined in step S101 that the maximum acceleration is equal to or less than "special travel", the service of the elevator 1 is continued.

  If it is determined in step S101 that the maximum acceleration is greater than the "special travel", the elevator 1 is stopped (step S102). The automatic diagnosis control unit 18 determines whether or not the maximum acceleration output by the earthquake sensor 8 is "low" or less (step S103). If it is determined in step S103 that the maximum acceleration is "low" or less, the elevator 1 is automatically reset, for example, after one minute (step S104). After step S104, the service of the elevator 1 is continued.

  If it is determined in step S103 that the maximum acceleration is greater than "low", the automatic diagnosis control unit 18 determines whether or not the maximum acceleration output by the earthquake sensor 8 is "high" or less (step S103). Step S105). If it is determined in step S105 that the maximum acceleration is "high" or less, the process of step S108 is performed.

  If it is determined in step S105 that the maximum acceleration is larger than "high", the automatic diagnosis control unit 18 determines whether the earthquake resistance class of the elevator 1 is the earthquake resistance class S (step S106). If it is determined in step S106 that the earthquake resistance class S is determined, the automatic diagnosis control unit 18 determines whether the maximum acceleration output by the earthquake sensor 8 is "diagnosis" or less (step S107). If it is determined in step S107 that the maximum acceleration is equal to or less than "diagnosis", the process of step S108 is performed.

  In step S108, the reporting unit 20 reports to the monitoring center 10. The content notified in step S108 indicates, for example, execution of an automatic diagnosis operation. Following step S108, the automatic diagnosis control unit 18 executes an automatic diagnosis operation of the elevator 1 (step S109). The automatic diagnosis control unit 18 determines whether there is an object loss in the elevator 1 based on the result of the automatic diagnosis operation (step S110). When it is determined in step S110 that there is no loss of property in the elevator 1, the reporting unit 20 reports to the monitoring center 10 (step S111). The content notified in step S111 indicates, for example, that the elevator 1 has no property loss. In this case, the service of the elevator 1 is continued.

  If it is determined in step S110 that the elevator 1 has a property loss, the reporting unit 20 reports to the monitoring center 10 (step S112). The content notified in step S112 is, for example, a dispatch request of the maintenance worker. The maintenance worker inspects and repairs the elevator 1 in response to the dispatch request (step S113). After the work is completed, the maintenance worker reports completion to the monitoring center 10 (step S114).

  If it is determined in step S106 that the class is not earthquake resistant class S, the process of step S115 is performed. If it is determined in step S107 that the maximum acceleration is larger than "diagnosis", the process of step S115 is performed.

  In step S115, the automatic diagnosis control unit 18 determines whether the automatic diagnosis operation using the individual reference is executable. The determination in step S115 is based on, for example, whether or not there is a maintenance contract for the elevator 1 for automatic diagnosis operation using individual criteria. If it is determined in step S115 that the automatic diagnosis operation using the individual reference is not executable, the process of step S112 is performed.

  If it is determined in step S115 that the automatic diagnosis operation using the individual reference is executable, the automatic diagnosis control unit 18 acquires output data based on the acceleration due to the present earthquake from the earthquake sensor 8 (step S116). ). The reporting unit 20 reports the output data to the monitoring center 10 (step S117). The automatic diagnosis control unit 18 determines whether the acquired output data satisfies the individual reference (step S118).

  If it is determined in step S118 that the output data satisfies the individual reference, the process of step S108 is performed. If it is determined in step S118 that the output data does not meet the individual criteria, the process of step S112 is performed.

In the first embodiment, the communication unit 12 of the earthquake sensor 8 has a function of performing bidirectional communication with the control panel 7 of the elevator 1. The communication unit 12 transmits, for example, numerical values indicating the maximum acceleration, the numerical value indicating the numeric and rocking is time shows a maximum acceleration for each swing direction control board 7. That is, the output data of the earthquake sensor 8 is not a simple contact signal according to the magnitude of the shake but a detailed numerical value representing the feature of the shake. Therefore, according to the first embodiment, it is possible to expand services such as control operation and automatic diagnosis operation of the elevator at the time of the occurrence of an earthquake using output data of the earthquake detector. Further, according to the first embodiment, the connection state between the earthquake sensor and the control panel can be easily checked.

  In the first embodiment, the earthquake sensor 8 may have, for example, a vibration generating unit. The vibration generating unit has a function of generating vibration by, for example, a servomotor or the like. The self-diagnosis unit 16 operates the vibration generation unit based on, for example, the function diagnosis command transmitted from the sensor control unit 17. The self-diagnosis unit 16 determines, for example, whether or not various values detected by the acceleration detection unit 13, the swing direction detection unit 14 and the swing time detection unit 15 are normal after the start of the operation of the vibration generation unit. The communication unit 12 sends, for example, various numerical values and the determination result of the self-diagnosis unit 16 back to the maintenance device 9. This makes it possible to easily confirm that the earthquake detector operates normally when an actual earthquake occurs. The vibration generating unit may be provided as a separate device from the earthquake sensor 8 as long as the vibration can be transmitted to the earthquake sensor 8.

  In the first embodiment, the automatic diagnosis control unit 18 has a function of executing the automatic diagnosis operation of the elevator 1 after the occurrence of an earthquake, and the maximum acceleration output by the earthquake sensor 8 is less than a preset general reference value. Automatic diagnosis operation is performed when it is included in a certain range. The storage unit 19 stores an individual reference set for each building or each elevator 1. Even if the maximum acceleration output by the earthquake sensor 8 exceeds the general reference value, the automatic diagnosis control unit 18 stores the numerical value based on the acceleration output by the earthquake sensor 8 in the storage unit 19. Automatic diagnostic operation is performed if the individual standard is satisfied. Therefore, according to the first embodiment, the automatic diagnosis operation can be performed according to the seismic capacity of the individual building or the individual elevator. As a result, it is possible to increase the proportion of elevators that automatically recover after an earthquake. In addition, the load on maintenance workers after the occurrence of an earthquake can be reduced.

  In the first embodiment, the individual reference includes, for example, the maximum acceleration due to the past shaking that did not cause the elevator 1 to lose property. The automatic diagnosis control unit 18 determines whether or not to execute the automatic diagnosis operation based on, for example, the comparison result between the maximum acceleration output by the earthquake sensor 8 and the individual reference. For this reason, it is possible to carry out an automatic diagnosis operation according to the seismic capacity of the individual building or the individual elevator.

  In the first embodiment, the individual reference includes, for example, the maximum acceleration for each swing direction due to the past swing that did not cause the elevator 1 to lose property. The automatic diagnosis control unit 18 determines whether or not to execute the automatic diagnosis operation based on, for example, the comparison result between the maximum acceleration in each swing direction output by the earthquake sensor 8 and the individual reference. In this case, it is possible to determine whether or not to execute the automatic diagnosis operation in consideration of the fact that the seismic capacity of the building or elevator varies depending on the swing direction. For this reason, automatic diagnostic operation can be performed depending on the detailed seismic capacity of the individual building or individual elevator.

In the first embodiment, the individual criteria may include, for example, is rocking due to past shaking did not generate damage only to the elevator 1 time. Automatic diagnosis control unit 18, for example, based on a result of comparison between the outputted oscillating been time and individual standard by seismic sensor 8, to determine whether to perform automatic diagnosis operation. In this case, it is possible to decide whether or not to execute the automatic diagnosis operation in consideration of the fact that the seismic capacity of the building or the elevator varies depending on the swing time. For this reason, automatic diagnostic operation can be performed depending on the detailed seismic capacity of the individual building or individual elevator.

In the first embodiment, the automatic diagnosis control unit 18, for example, based on a result of comparison between at least two and individual standard of maximum acceleration, maximum acceleration and rocking is time for each swing direction output by the seismic sensor 8 To determine whether or not to execute the automatic diagnosis operation. For this reason, automatic diagnostic operation can be performed depending on the more detailed seismic capacity of the individual building or individual elevator.

  In the first embodiment, the individual reference is set, for example, based on the acceleration due to the past shaking that did not cause the elevator 1 to cause property loss. For this reason, an automatic diagnostic operation can be performed depending on the actual seismic capacity of the individual building or individual elevator.

  In the first embodiment, the updating unit 22 updates, for example, the individual reference stored in the storage unit 19. The automatic diagnosis control unit 18 and the storage unit 19 are provided, for example, in a maintenance device 9 installed in the same building as the elevator 1. The updating unit 22 is provided, for example, in the monitoring center 10 capable of communicating with the maintenance device 9. Therefore, it is possible to prevent the maintenance worker from accidentally changing the individual reference when the elevator is inspected.

  In the first embodiment, for example, when the maximum acceleration output by the earthquake sensor 8 exceeds the general reference value, the numerical value based on the acceleration output by the earthquake sensor 8 satisfies the individual reference. In addition, when it is confirmed by the maintenance worker that no property loss has occurred in the elevator 1, the numerical value is set as an individual reference. That is, the updating unit 22 upwardly corrects the individual reference for the building or elevator 1 having high seismic capacity. For this reason, an automatic diagnostic operation can be performed depending on the actual seismic capacity of the individual building or individual elevator.

  In the first embodiment, for example, when the maximum acceleration output by the earthquake sensor 8 exceeds the general reference value, the numerical value based on the acceleration output by the earthquake sensor 8 satisfies the individual reference And, when it is confirmed by the maintenance worker that the property loss has occurred in the elevator 1, the numerical value is set as an individual reference. That is, the updating unit 22 downwardly corrects the individual reference for the building or elevator 1 having a low seismic capacity. For this reason, an automatic diagnostic operation can be performed depending on the actual seismic capacity of the individual building or individual elevator.

  In the first embodiment, the individual standard for a certain elevator 1 or a building where the elevator 1 is installed is output in the past by, for example, the elevator 1 or the earthquake sensor 8 provided at a different place from the building. It may be set based on the acceleration. The individual reference for a certain elevator 1 may be set based on, for example, the accelerations output in the past by the earthquake sensor 8 provided in another elevator 1 having the same or similar model and hoistway dimensions and the like. Individual criteria for a certain building are set based on, for example, the acceleration previously output by the earthquake sensor 8 provided in another building having the same or similar floor number, age, plane shape, structural material, ground, etc. It may be done. In this case, for example, an appropriate individual standard can be set for a newly installed elevator or a newly completed building.

  In the first embodiment, the sensor control unit 17, the automatic diagnosis control unit 18, the storage unit 19, and the notification unit 20 may be provided as a function of the control panel 7. Even in this case, the automatic diagnosis operation can be performed depending on the seismic capacity of the individual building or the individual elevator.

  FIG. 5 is a hardware configuration diagram of the maintenance device.

  Each function of the sensor control unit 17, the automatic diagnosis control unit 18, the storage unit 19, and the notification unit 20 in the maintenance device 9 is realized by a processing circuit. The processing circuit may be dedicated hardware 50. The processing circuit may comprise a processor 51 and a memory 52. The processing circuit is partially formed as dedicated hardware 50 and may further include a processor 51 and a memory 52. FIG. 5 shows an example in which the processing circuit is partially formed as dedicated hardware 50 and includes a processor 51 and a memory 52.

  When at least a part of the processing circuit is at least one dedicated hardware 50, the processing circuit may for example be a single circuit, a complex circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA or The combination is applicable.

  When the processing circuit includes at least one processor 51 and at least one memory 52, each function of the sensor control unit 17, the automatic diagnosis control unit 18, the storage unit 19 and the notification unit 20 is software, firmware, or software and firmware It is realized by the combination of The software and the firmware are described as a program and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52 to implement the functions of the respective units. The processor 51 is also referred to as a central processing unit (CPU), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. The memory 52 corresponds to, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD or the like.

  Thus, the processing circuit can realize each function of the maintenance device 9 by hardware, software, firmware, or a combination thereof. The functions of the control panel 7, the earthquake sensor 8 and the monitoring center 10 are also realized by the same processing circuit as the processing circuit shown in FIG.

  As mentioned above, the present invention is applicable to an elevator.

Reference Signs List 1 elevator 2 hoistway 3 hoisting machine 4 rope 5 car 6 balance weight 7 control board 8 earthquake detector 9 maintenance device 10 monitoring center 11 operation control unit 12 communication unit 13 acceleration detection unit 14 swing direction detection unit 15 swing time detection Unit 16 self-diagnosis unit 17 sensor control unit 18 automatic diagnosis control unit 19 storage unit 20 notification unit 21 storage unit 22 update unit 23 individual reference data 24 accumulated data 25 individual reference data 50 dedicated hardware 51 processor 52 memory

Claims (4)

An acceleration detection unit that detects a shake as an acceleration;
An acceleration exceeding a preset threshold is detected as the shaking time continuously detected by the acceleration detection unit as the shaking time, and the interval from the end time of the first shaking time to the start time of the second shaking time is A swing time detection unit configured to detect one continuous swing time from the start time point of the first swing time to the end time of the second swing time when it is less than a predetermined time;
It has a function to perform two-way communication with the control panel of the elevator, and the maximum of the acceleration detected by the acceleration detection unit in the period from when the acceleration detected by the acceleration detection unit exceeds the threshold until it falls below the threshold. The numerical value indicating the maximum acceleration, which is a value, and the swing time detection unit detects one continuous swing time from the start of the first swing time to the end of the second swing time as one continuous swing time A communication unit that transmits a numerical value indicating a swing time to the control panel;
Earthquake detector for elevators equipped with. A swing direction detection unit that detects an acceleration in each swing direction;
The communication unit determines the maximum acceleration for each swing direction, which is the maximum value of the acceleration detected by the swing direction detection unit in a period from when the acceleration detected by the acceleration detection unit exceeds the threshold until it falls below the threshold. The earthquake sensor for elevators according to claim 1, wherein the numerical value is transmitted to the control panel. The earthquake sensor for an elevator according to claim 1 or 2 , wherein the communication unit returns a response signal to the control panel when receiving a request signal for alive check from the control panel. A vibration generating unit having a function of generating vibration;
A self-diagnosis unit that determines whether the numerical value indicating the acceleration detected by the acceleration detection unit after the start of the operation of the vibration generation unit is normal;
The earthquake sensor for an elevator according to any one of claims 1 to 3 , comprising:

Images