WO2018122927A1 - Elevator control system - Google Patents

Elevator control system Download PDF

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Publication number
WO2018122927A1
WO2018122927A1 PCT/JP2016/088733 JP2016088733W WO2018122927A1 WO 2018122927 A1 WO2018122927 A1 WO 2018122927A1 JP 2016088733 W JP2016088733 W JP 2016088733W WO 2018122927 A1 WO2018122927 A1 WO 2018122927A1
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WO
WIPO (PCT)
Prior art keywords
command
recovery
elevator
unit
database
Prior art date
Application number
PCT/JP2016/088733
Other languages
French (fr)
Japanese (ja)
Inventor
賢一 小泉
恒次 阪田
奈々穂 大澤
広泰 田畠
智史 山▲崎▼
Original Assignee
三菱電機株式会社
三菱電機ビルテクノサービス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社, 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機株式会社
Priority to KR1020197021433A priority Critical patent/KR102181403B1/en
Priority to JP2018558538A priority patent/JP6536756B2/en
Priority to CN201680091645.8A priority patent/CN110088023B/en
Priority to PCT/JP2016/088733 priority patent/WO2018122927A1/en
Publication of WO2018122927A1 publication Critical patent/WO2018122927A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to an elevator control system.
  • Patent Document 1 describes a system for transmitting information necessary for elevator restoration work from a management center to a portable terminal of a maintenance worker. According to this system, when the maintenance worker is dispatched to the place where the elevator is installed, the recovery work can be made efficient.
  • the present invention has been made to solve the above problems.
  • the purpose is to provide an elevator control system capable of suppressing unnecessary dispatch of maintenance workers.
  • the elevator control system includes a restoration command database in which a restoration command and a restoration success rate are stored for each combination of an elevator abnormality code and a control parameter, and when an abnormality code and a control parameter are transmitted from the elevator.
  • the failure content analysis unit that searches the recovery command database with the combination of the error code and the control parameter, and the recovery command with the highest recovery success rate among the recovery commands included in the search results by the failure content analysis unit to the elevator.
  • the operation command part to transmit and the operation control part to operate an elevator based on the recovery instruction transmitted from the operation command part are provided.
  • the operation command unit transmits a recovery command having the highest recovery success rate to the elevator among the recovery commands included in the search result by the failure content analysis unit. For this reason, according to this invention, it can suppress that a maintenance worker is dispatched unnecessarily.
  • FIG. 1 It is a schematic diagram which shows an example of the structure of an elevator. It is a functional block diagram of the elevator control system in Embodiment 1. It is a figure which shows an example of the recovery instruction database in Embodiment 1.
  • 3 is a part of a flowchart illustrating an operation example of the control device according to the first embodiment. 6 is a remaining part of a flowchart illustrating an operation example of the control device according to the first embodiment. 3 is a flowchart illustrating an operation example of a management center in the first embodiment. It is a hardware block diagram of a management center.
  • FIG. Drawing 1 is a mimetic diagram showing an example of the structure of an elevator.
  • the elevator 1 includes a hoistway 2, a hoisting machine 3, a rope 4, a car 5, a counterweight 6, and a control device 7.
  • the hoistway 2 is formed, for example, so as to penetrate each floor of a building (not shown).
  • the hoisting machine 3 is provided, for example, in a machine room (not shown).
  • the rope 4 is wound around the hoisting machine 3.
  • the car 5 and the counterweight 6 are suspended in the hoistway 2 by the rope 4.
  • the car 5 and the counterweight 6 move up and down when the hoisting machine 3 is driven.
  • the hoisting machine 3 is controlled by the control device 7.
  • the control device 7 is electrically connected to the hoisting machine 3 and the maintenance device 8.
  • the maintenance device 8 has a function of communicating with the management center 9.
  • the control device 7 and the maintenance device 8 are provided, for example, in a building where the elevator 1 is installed.
  • the management center 9 is provided in a building different from the building where the elevator 1 is installed, for example.
  • the management center 9 is, for example, a server provided in a management company for the elevator 1.
  • FIG. 2 is a functional block diagram of the elevator control system in the first embodiment. In FIG. 2, illustration of the maintenance device 8 is omitted.
  • the control device 7 includes an operation control unit 10, a failure determination unit 11, and a recovery operation confirmation unit 12.
  • the control device 7 includes, for example, a flash memory as a storage unit (not shown).
  • the management center 9 includes a recovery command database 13, a failure content analysis unit 14, an operation command unit 15, a command result determination unit 16, and a database update unit 17.
  • the term “database” is written as “DB”.
  • the operation control unit 10 controls the operation of the elevator 1.
  • the operation control unit 10 controls the movement of the car 5 by controlling the driving of the hoisting machine 3, for example.
  • the operation control unit 10 controls the opening and closing of the door of the elevator 1 via a door opening and closing device (not shown).
  • the failure determination unit 11 has a diagnostic function for detecting an abnormality that has occurred in the elevator 1.
  • the diagnostic function is a function for determining whether or not the control parameters of the elevator 1 and various sensor information are normal, for example.
  • the control parameter is information representing an operation command to various devices of the elevator 1, for example. That is, the control parameter represents, for example, the state of the elevator 1 that varies in real time.
  • the failure determination unit 11 outputs an abnormality code corresponding to the detected abnormality.
  • the abnormality code is information set in advance indicating, for example, the type and location of the abnormality.
  • the failure determination unit 11 detects an abnormality of the elevator 1 based on, for example, that the control parameter is not normal. When an abnormality is detected by the failure determination unit 11, the operation control unit 10 stops the elevator 1, for example.
  • the failure determination unit 11 transmits, for example, a control parameter at the time when an abnormality is detected and an abnormality code corresponding to the detected abnormality to the management center 9. Note that the failure determination unit 11 may transmit, for example, a control parameter at a time point that is a predetermined time after the time point when the abnormality is detected to the management center 9.
  • the recovery command database 13 stores a recovery command and a recovery success rate for each combination of the abnormality code of the elevator 1 and the control parameter.
  • the restoration command is an operation command that can restore the elevator 1 from the abnormality.
  • the recovery command indicates, for example, diagnostic operation to be executed after the elevator 1 is restarted.
  • the restoration success rate is a probability that the elevator 1 is restored by a corresponding restoration command.
  • FIG. 3 is a diagram showing an example of the recovery command database in the first embodiment.
  • control parameter associated with the recovery instruction “door opening / closing diagnosis” in FIG. 3 includes information that is not normal as representing at least the operation of the door.
  • control parameter associated with the recovery command “torque diagnosis” in FIG. 3 includes information that is not normal as representing at least the operation of the hoisting machine.
  • the failure content analysis unit 14 searches the recovery command database 13 with a combination of the abnormality code and the control parameter when the failure code and the control parameter are transmitted from the failure determination unit 11.
  • the operation command unit 15 selects, for example, the highest recovery command having a recovery success rate equal to or higher than a certain value from among the recovery commands included in the search result by the failure content analysis unit 14.
  • the operation command unit 15 transmits the selected recovery command to the control device 7 of the elevator 1.
  • the failure content analysis unit 14 outputs a dispatch command for dispatching the maintenance worker 18 when, for example, the recovery success rates of all the recovery commands included in the search result are equal to or less than a preset reference value.
  • the operation command unit 15 does not transmit a recovery command.
  • the reference value is set to a value of 0% or more and less than 100%.
  • the failure content analysis unit 14 when the combination of the retrieved abnormal code and the control parameter does not exist in the recovery command database 13, the failure content analysis unit 14 newly registers the combination in the recovery command database 13. In this case, the failure content analysis unit 14 outputs a dispatch command for dispatching the maintenance worker 18.
  • the dispatch command may be notified from, for example, a display device connected to the management center 9.
  • the dispatch command may be transmitted to an information terminal used by the maintenance worker 18, for example.
  • the operation control unit 10 operates the elevator 1 based on the recovery command transmitted from the operation command unit 15. For example, when there is no response from the management center 9 to the control device 7, the operation control unit 10 continues to stop the elevator 1.
  • the restoration operation confirmation unit 12 has a diagnostic function similar to that of the failure determination unit 11, for example.
  • the recovery operation confirmation unit 12 determines whether or not the control parameters of the elevator 1 after operating based on the recovery command transmitted from the operation command unit 15 are normal. For example, when the control parameter of the elevator 1 is normal, the recovery operation confirmation unit 12 transmits a message indicating that the recovery has been successful to the management center 9 as a command result. For example, when the control parameter of the elevator 1 is not normal, the recovery operation confirmation unit 12 transmits a message indicating that the recovery has failed to the management center 9 as a command result.
  • the operation control unit 10 stops the elevator 1 when the restoration operation confirmation unit 12 determines that the control parameters of the elevator 1 are not normal, for example.
  • the command result determination unit 16 determines whether or not the restoration of the elevator 1 has been successful based on the recovery command transmitted from the operation command unit 15 based on the information transmitted from the recovery operation confirmation unit 12. For example, when the command result indicating that the recovery is successful is received from the recovery operation confirmation unit 12, the command result determination unit 16 determines that the elevator 1 has been successfully recovered. For example, when the command result determination unit 16 receives a command result indicating that the recovery has failed from the recovery operation confirmation unit 12, the command result determination unit 16 determines that the recovery of the elevator 1 is not successful.
  • the database update unit 17 updates the recovery command database 13 based on the determination result by the command result determination unit 16, for example. For example, when the command result determination unit 16 determines that the recovery of the elevator 1 has been successfully recovered by the recovery command transmitted from the operation command unit 15, the database update unit 17 stores the recovery stored in the recovery command database 13. Increase the recovery success rate of the directive.
  • the database update unit 17 is stored in the recovery command database 13 when, for example, the command result determination unit 16 determines that the recovery of the elevator 1 has not been successful by the recovery command transmitted from the operation command unit 15. Reduce the recovery success rate of the recovery order.
  • the increase amount and the decrease amount of the recovery success rate are set in advance, for example.
  • the database update unit 17 may, for example, 13 is not updated. That is, the recovery success rate of the recovery command is deferred.
  • the recovery success rate included in the search result by the failure content analysis unit 14 is below the reference value, and when the combination of the searched abnormal code and the control parameter does not exist in the recovery command database 13
  • the recovery command is not transmitted from the operation command unit 15.
  • a dispatch command is output from the management center 9.
  • the maintenance worker 18 performs maintenance work at the place where the elevator 1 is installed in accordance with the dispatch command.
  • the maintenance worker 18 inputs the contents of the maintenance work performed to the management center 9 after the elevator 1 is restored, for example.
  • the database update unit 17 registers, for example, at least one of the content of the maintenance work performed by the maintenance worker 18 and the recovery command corresponding to the maintenance work in the recovery command database 13.
  • the database update unit 17 maintains the recovery command included in the search result. Replace at least one of the contents of the work and the restoration command corresponding to the maintenance work. In this case, for example, the database update unit 17 sets the recovery success rate included in the search result to 100%.
  • the database update unit 17 performs maintenance work on the newly registered combination. Associate at least one of the contents and the restoration order corresponding to the maintenance work. In this case, for example, the database update unit 17 sets the content of the maintenance work associated with the combination or the recovery success rate of the recovery command to 100%.
  • FIG. 4 is a part of a flowchart showing an operation example of the control device according to the first embodiment.
  • FIG. 5 is the remaining part of the flowchart showing an operation example of the control device according to the first embodiment. 4 and 5 are a flowchart in total.
  • step S101 When the power of the elevator 1 is turned on (step S101), the control parameters are initialized (step S102).
  • the control device 7 starts a diagnostic function (step S103) and performs normal operation of the elevator 1 (step S104).
  • Control device 7 determines whether or not the control parameter is normal during normal operation of elevator 1 (step S105). If it is determined in step S105 that the control parameter is normal, the control device 7 continues normal operation.
  • step S105 If it is determined in step S105 that the control parameter is not normal, the control device 7 ends the diagnostic function and normal operation (step S106), and stops the elevator 1 (step S107).
  • the control device 7 records an abnormal control parameter (step S108).
  • the control device 7 outputs an abnormal code (step S109).
  • the control device 7 transmits the control parameter and the abnormality code to the management center 9 (step S110).
  • the control device 7 determines, for example, whether or not there is a response from the management center 9 until a predetermined time elapses from the processing of step S110 (step S111). When it is determined in step S111 that there is a response from the management center 9, the control device 7 determines whether there is a restart command from the management center 9 (step S112). If it is determined in step S112 that there is a restart command from the management center 9, the control device 7 stores a recovery command to be executed after the restart in the flash memory (step S113). Subsequent to step S113, when the control device 7 restarts (step S114), the control parameters are initialized (step S115).
  • the control device 7 executes the restoration command stored in the flash memory (step S116). Thereafter, the control device 7 determines whether or not the control parameter is normal (step S117). When it is determined in step S117 that the control parameter is normal, the control device 7 transmits a command result indicating that the recovery is successful to the management center 9 (step S118). Following step S118, the control device 7 performs the process of step S103.
  • step S117 When it is determined in step S117 that the control parameter is not normal, the control device 7 transmits a command result indicating that the restoration has failed to the management center 9 (step S119). In this case, a maintenance worker 18 is dispatched to restore the elevator 1. Following step S119, the control device 7 stops the elevator 1 (step S120) and turns off the power (step S121).
  • step S111 If it is determined in step S111 that there is no response from the management center 9 and if it is determined in step S112 that there is no restart command from the management center 9, the control device 7 continues the stop of the elevator 1 (step S122). In this case, a maintenance worker 18 is dispatched to restore the elevator 1. Following step S122, the control device 7 turns off the power of the elevator 1 (step S123).
  • FIG. 6 is a flowchart showing an operation example of the management center in the first embodiment.
  • FIG. 6 shows a case where the reference value is 0% as an example.
  • the management center 9 receives the abnormality code and the control parameter from the elevator 1 (step S201).
  • the management center 9 searches the recovery command database 13 with the combination of the abnormality code and the control parameter (step S202).
  • the management center 9 determines whether there is a search result (step S203). When it is determined in step S203 that there is a search result, the management center 9 determines whether the recovery success rate included in the search result is 0% (step S204).
  • step S204 When it is determined in step S204 that the recovery success rate is not 0%, the management center 9 selects a recovery command having the highest recovery success rate among the search results (step S205). The management center 9 transmits the selected restoration command to the elevator 1 (step S206).
  • the management center 9 determines, for example, whether or not a command result has been received from the elevator 1 until a predetermined time has elapsed from the process of step S206 (step S207). If it is determined in step S207 that the command result has been received, the management center 9 determines whether or not the command result indicates a successful recovery (step S208).
  • step S208 If it is determined in step S208 that the command result indicates a successful recovery, the management center 9 increases the recovery success rate of the recovery command selected in step S205 (step S209). If it is determined in step S208 that the command result indicates a failure in recovery, the management center 9 decreases the recovery success rate of the recovery command selected in step S205 (step S210).
  • step S207 If it is determined in step S207 that the command result has not been received, the management center 9 defers the recovery success rate of the recovery command selected in step S205 (step S211).
  • step S212 If it is determined in step S203 that there is no search result, the management center 9 registers an abnormal code and a control parameter in the recovery command database 13 (step S212). Subsequent to step S212, the management center 9 outputs a dispatch command (step S213). Even when it is determined in step S204 that the recovery success rate is 0%, the management center 9 performs the process of step S213. Subsequent to step S213, the management center 9 registers, for example, the work content of the maintenance worker 18 in the recovery command database 13 (step S214). For example, the management center 9 sets the recovery success rate of the work content to 100% (step S215).
  • the recovery command database 13 stores a recovery command and a recovery success rate for each combination of the abnormality code of the elevator 1 and the control parameter.
  • the failure content analysis unit 14 searches the recovery command database 13 with a combination of the abnormal code and the control parameter.
  • the operation command unit 15 selects a recovery command having a recovery success rate that is equal to or higher than a certain value from among the recovery commands included in the search result by the failure content analysis unit 14, and uses the selected recovery command as an elevator. 1 to send.
  • an appropriate restoration command can be given to the elevator by remote operation. As a result, unnecessary dispatch of maintenance workers can be suppressed.
  • the command result determination unit 16 determines whether or not the restoration of the elevator 1 has been successful based on the recovery command transmitted from the operation command unit 15. For example, when the command result determination unit 16 determines that the recovery of the elevator 1 has been successfully recovered by the recovery command transmitted from the operation command unit 15, the database update unit 17 stores the recovery stored in the recovery command database 13. Increase the recovery success rate of the directive.
  • the database update unit 17 is stored in the recovery command database 13 when, for example, the command result determination unit 16 determines that the recovery of the elevator 1 has not been successful by the recovery command transmitted from the operation command unit 15. Reduce the recovery success rate of the recovery order. For this reason, according to the first embodiment, the recovery success rate stored in the recovery command database 13 can be updated to a more appropriate value. As a result, unnecessary dispatch of maintenance workers can be suppressed.
  • the failure content analysis unit 14 dispatches the maintenance worker 18 when the recovery success rate of all the recovery commands included in the search result is equal to or less than a preset reference value.
  • Output dispatch command For example, the operation command unit 15 does not transmit the recovery command to the elevator 1 when the recovery success rate of all the recovery commands included in the search result by the failure content analysis unit 14 is equal to or less than the reference value. For this reason, according to Embodiment 1, when it is unlikely that the elevator can be restored by remote operation, a maintenance worker can be dispatched.
  • the failure content analysis unit 14 registers the combination in the recovery command database 13 and performs maintenance work.
  • the dispatch command for dispatching the person 18 is output. For this reason, according to the first embodiment, a maintenance worker can be dispatched when an abnormality in which the possibility of restoring the elevator is unknown is detected.
  • the database update unit 17 registers, for example, at least one of the content of the maintenance work performed by the maintenance worker 18 and the recovery command corresponding to the maintenance work in the recovery command database 13. For this reason, according to the first embodiment, it is possible to accumulate in the recovery command database 13 appropriate countermeasures for abnormalities or unknown abnormalities that are unlikely to be recovered. Thereby, the probability that the elevator can be restored by remote control can be improved.
  • the control device 7 does not have to stop the elevator 1 immediately when, for example, the recovery fails.
  • the control device 7 may perform the process of step S103 after step S119. That is, for example, the control device 7 may repeatedly transmit the abnormal code and the control parameter to the management center 9.
  • the operation command unit 15 of the management center 9 may repeatedly transmit a recovery command to the control device 7, for example.
  • the management center 9 may set the recovery success rate of the selected recovery command to 0% when the command result indicating the recovery failure is continuously received for a certain number of times or more. That is, the database update unit 17 transmits, for example, a recovery command from the operation command unit 15 and the determination by the command result determination unit 16 that the recovery of the elevator 1 is not successful by the recovery command is a predetermined number of times or more set in advance. When it is made continuously, the recovery success rate of the recovery command may be set to 0%.
  • the management center 9 may output a dispatch command when a command result indicating a failure in recovery is continuously received a predetermined number of times or more. That is, for example, the failure content analysis unit 14 transmits a recovery command from the operation command unit 15 and a predetermined number of times that the determination by the command result determination unit 16 that the recovery of the elevator 1 has not been successful by the recovery command is set in advance.
  • the dispatch command may be output when the above is continuously performed. Thereby, after trying the restoration of the elevator 1 by remote operation a plurality of times, if the restoration fails, the maintenance worker 18 can be dispatched.
  • FIG. 7 is a hardware configuration diagram of the management center.
  • the functions of the recovery command database 13, the failure content analysis unit 14, the operation command unit 15, the command result determination unit 16, and the database update unit 17 in the management center 9 are realized by a processing circuit.
  • the processing circuit may be dedicated hardware 50.
  • the processing circuit may include a processor 51 and a memory 52.
  • a part of the processing circuit is formed as dedicated hardware 50, and may further include a processor 51 and a memory 52.
  • FIG. 7 shows an example in which the processing circuit is partly formed as dedicated hardware 50 and includes a processor 51 and a memory 52.
  • the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or the like. The combination is applicable.
  • each function of the recovery command database 13, the failure content analysis unit 14, the operation command unit 15, the command result determination unit 16, and the database update unit 17 is software , Firmware, or a combination of software and firmware.
  • Software and firmware are described as programs and stored in the memory 52.
  • the processor 51 reads out and executes the program stored in the memory 52, thereby realizing the function of each unit.
  • the processor 51 is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and 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, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.
  • a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.
  • the processing circuit can realize each function of the management center 9 by hardware, software, firmware, or a combination thereof.
  • Each function of the control device 7 is also realized by a processing circuit similar to the processing circuit shown in FIG.
  • the present invention can be applied to a remotely operable elevator.

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Abstract

Provided is an elevator control system whereby unnecessary dispatching of a maintenance worker can be suppressed. An elevator control system is provided with a restoration command database (13) in which a restoration success rate and a restoration command are stored for each combination of an abnormality code and a control parameter of an elevator (1), a failure content analysis unit (14) for searching the restoration command database (13) using the combination of the abnormality code and the control parameter when an abnormality code and a control parameter are transmitted from the elevator (1), an operation command unit (15) for transmitting the restoration command having the highest restoration success rate from among restoration commands included in the search result by the failure content analysis unit (14), and an operation control unit (10) for actuating the elevator (1) on the basis of the restoration command transmitted from the operation command unit (15).

Description

エレベーター制御システムElevator control system
　本発明は、エレベーターの制御システムに関する。 The present invention relates to an elevator control system.
　下記特許文献１には、エレベーターの復旧作業に必要な情報を管理センターから保守作業者の携帯端末に送信するシステムが記載されている。このシステムによれば、保守作業者がエレベーターの設置場所に派遣される場合に、復旧作業を効率化し得る。 The following Patent Document 1 describes a system for transmitting information necessary for elevator restoration work from a management center to a portable terminal of a maintenance worker. According to this system, when the maintenance worker is dispatched to the place where the elevator is installed, the recovery work can be made efficient.
日本特開２００３－１０４６４４号公報Japanese Unexamined Patent Publication No. 2003-104644
　特許文献１に記載のシステムでは、遠隔操作によってエレベーターを復旧可能である場合であっても、保守作業者が派遣される必要がある。このため、保守作業者が不必要に派遣されることを抑制できない。 In the system described in Patent Document 1, a maintenance worker needs to be dispatched even when the elevator can be restored by remote control. For this reason, it cannot suppress that a maintenance worker is dispatched unnecessarily.
　本発明は、上記の課題を解決するためになされた。その目的は、保守作業者が不必要に派遣されることを抑制できるエレベーター制御システムを提供することである。 The present invention has been made to solve the above problems. The purpose is to provide an elevator control system capable of suppressing unnecessary dispatch of maintenance workers.
　本発明に係るエレベーター制御システムは、エレベーターの異常コードと制御パラメータとの組合せごとに復旧指令及び復旧成功率が記憶されている復旧指令データベースと、エレベーターから異常コード及び制御パラメータが送信された場合に、当該異常コードと当該制御パラメータとの組合せで復旧指令データベースを検索する故障内容分析部と、故障内容分析部による検索結果に含まれる復旧指令の中で復旧成功率が最も高い復旧指令をエレベーターに送信する運転指令部と、運転指令部から送信された復旧指令に基づいてエレベーターを動作させる運転制御部と、を備えたものである。 The elevator control system according to the present invention includes a restoration command database in which a restoration command and a restoration success rate are stored for each combination of an elevator abnormality code and a control parameter, and when an abnormality code and a control parameter are transmitted from the elevator. The failure content analysis unit that searches the recovery command database with the combination of the error code and the control parameter, and the recovery command with the highest recovery success rate among the recovery commands included in the search results by the failure content analysis unit to the elevator The operation command part to transmit and the operation control part to operate an elevator based on the recovery instruction transmitted from the operation command part are provided.
　本発明に係るエレベーター制御システムにおいて、運転指令部は、故障内容分析部による検索結果に含まれる復旧指令の中で復旧成功率が最も高い復旧指令をエレベーターに送信する。このため、本発明によれば、保守作業者が不必要に派遣されることを抑制することができる。 In the elevator control system according to the present invention, the operation command unit transmits a recovery command having the highest recovery success rate to the elevator among the recovery commands included in the search result by the failure content analysis unit. For this reason, according to this invention, it can suppress that a maintenance worker is dispatched unnecessarily.
エレベーターの構造の一例を示す模式図である。It is a schematic diagram which shows an example of the structure of an elevator. 実施の形態１におけるエレベーター制御システムの機能ブロック図である。It is a functional block diagram of the elevator control system in Embodiment 1. 実施の形態１における復旧指令データベースの一例を示す図である。It is a figure which shows an example of the recovery instruction database in Embodiment 1. 実施の形態１における制御装置の動作例を示すフローチャートの一部である。3 is a part of a flowchart illustrating an operation example of the control device according to the first embodiment. 実施の形態１における制御装置の動作例を示すフローチャートの残部である。6 is a remaining part of a flowchart illustrating an operation example of the control device according to the first embodiment. 実施の形態１における管理センターの動作例を示すフローチャートである。3 is a flowchart illustrating an operation example of a management center in the first embodiment. 管理センターのハードウェア構成図である。It is a hardware block diagram of a management center.
　添付の図面を参照して、本発明を詳細に説明する。各図では、同一又は相当する部分に同一の符号を付している。重複する説明は、適宜簡略化あるいは省略する。 The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.
実施の形態１．
　図１は、エレベーターの構造の一例を示す模式図である。 Embodiment 1 FIG.
Drawing 1 is a mimetic diagram showing an example of the structure of an elevator.
　図１に示すように、エレベーター１は、昇降路２、巻上機３、ロープ４、かご５、釣合おもり６及び制御装置７を備えている。昇降路２は、例えば、図示しない建物の各階を貫くように形成されている。巻上機３は、例えば、図示しない機械室等に設けられている。ロープ４は、巻上機３に巻き掛けられている。かご５及び釣合おもり６は、ロープ４によって昇降路２内に吊り下げられている。かご５及び釣合おもり６は、巻上機３が駆動することにより昇降する。巻上機３は、制御装置７によって制御される。 As shown in FIG. 1, the elevator 1 includes a hoistway 2, a hoisting machine 3, a rope 4, a car 5, a counterweight 6, and a control device 7. The hoistway 2 is formed, for example, so as to penetrate each floor of a building (not shown). The hoisting machine 3 is provided, for example, in a machine room (not shown). The rope 4 is wound around the hoisting machine 3. The car 5 and the counterweight 6 are suspended in the hoistway 2 by the rope 4. The car 5 and the counterweight 6 move up and down when the hoisting machine 3 is driven. The hoisting machine 3 is controlled by the control device 7.
　制御装置７は、巻上機３及び保守装置８と電気的に接続されている。保守装置８は、管理センター９と通信する機能を有する。 The control device 7 is electrically connected to the hoisting machine 3 and the maintenance device 8. The maintenance device 8 has a function of communicating with the management center 9.
　制御装置７及び保守装置８は、例えば、エレベーター１が設置された建物に設けられている。管理センター９は、例えば、エレベーター１が設置された建物とは別の建物に設けられている。管理センター９は、例えば、エレベーター１の管理会社に設けられたサーバー等である。 The control device 7 and the maintenance device 8 are provided, for example, in a building where the elevator 1 is installed. The management center 9 is provided in a building different from the building where the elevator 1 is installed, for example. The management center 9 is, for example, a server provided in a management company for the elevator 1.
　図２は、実施の形態１におけるエレベーター制御システムの機能ブロック図である。図２において、保守装置８の図示は省略されている。 FIG. 2 is a functional block diagram of the elevator control system in the first embodiment. In FIG. 2, illustration of the maintenance device 8 is omitted.
　図２に示すように、制御装置７は、運転制御部１０、故障判定部１１及び復旧動作確認部１２を有する。制御装置７は、例えば、図示しない記憶部として、Ｆｌａｓｈメモリ等を有する。管理センター９は、復旧指令データベース１３、故障内容分析部１４、運転指令部１５、指令結果判定部１６及びデータベース更新部１７を有する。なお、図中において、「データベース」という語句は「ＤＢ」と表記されている。 As shown in FIG. 2, the control device 7 includes an operation control unit 10, a failure determination unit 11, and a recovery operation confirmation unit 12. The control device 7 includes, for example, a flash memory as a storage unit (not shown). The management center 9 includes a recovery command database 13, a failure content analysis unit 14, an operation command unit 15, a command result determination unit 16, and a database update unit 17. In the figure, the term “database” is written as “DB”.
　運転制御部１０は、エレベーター１の動作を制御する。運転制御部１０は、例えば、巻上機３の駆動を制御することで、かご５の移動を制御する。運転制御部１０は、例えば、図示しない戸開閉装置を介して、エレベーター１のドアの開閉を制御する。 The operation control unit 10 controls the operation of the elevator 1. The operation control unit 10 controls the movement of the car 5 by controlling the driving of the hoisting machine 3, for example. For example, the operation control unit 10 controls the opening and closing of the door of the elevator 1 via a door opening and closing device (not shown).
　故障判定部１１は、エレベーター１に発生した異常を検出する診断機能を有する。診断機能は、例えば、エレベーター１の制御パラメータ及び各種のセンサ情報等が正常であるか否かを判定する機能である。制御パラメータは、例えば、エレベーター１の各種機器への動作指令を表す情報である。つまり、制御パラメータは、例えば、リアルタイムで変動するエレベーター１の状態を表す。故障判定部１１は、検出された異常に対応する異常コードを出力する。異常コードは、例えば、異常の種類及び発生箇所等を示す予め設定された情報である。 The failure determination unit 11 has a diagnostic function for detecting an abnormality that has occurred in the elevator 1. The diagnostic function is a function for determining whether or not the control parameters of the elevator 1 and various sensor information are normal, for example. The control parameter is information representing an operation command to various devices of the elevator 1, for example. That is, the control parameter represents, for example, the state of the elevator 1 that varies in real time. The failure determination unit 11 outputs an abnormality code corresponding to the detected abnormality. The abnormality code is information set in advance indicating, for example, the type and location of the abnormality.
　故障判定部１１は、例えば、制御パラメータが正常でないことに基づいてエレベーター１の異常を検出する。故障判定部１１により異常が検出されると、運転制御部１０は、例えば、エレベーター１を停止させる。故障判定部１１は、例えば、異常が検出された時点の制御パラメータ及び検出された異常に対応する異常コードを管理センター９に送信する。なお、故障判定部１１は、例えば、異常が検出された時点から一定時間遡った時点の制御パラメータを管理センター９に送信してもよい。 The failure determination unit 11 detects an abnormality of the elevator 1 based on, for example, that the control parameter is not normal. When an abnormality is detected by the failure determination unit 11, the operation control unit 10 stops the elevator 1, for example. The failure determination unit 11 transmits, for example, a control parameter at the time when an abnormality is detected and an abnormality code corresponding to the detected abnormality to the management center 9. Note that the failure determination unit 11 may transmit, for example, a control parameter at a time point that is a predetermined time after the time point when the abnormality is detected to the management center 9.
　復旧指令データベース１３には、エレベーター１の異常コードと制御パラメータとの組合せごとに復旧指令及び復旧成功率が記憶されている。復旧指令は、エレベーター１を異常から復旧させ得る動作指令である。復旧指令は、例えば、エレベーター１の再起動後に実行すべき診断運転等を示す。復旧成功率は、対応する復旧指令によってエレベーター１が復旧する確率である。 The recovery command database 13 stores a recovery command and a recovery success rate for each combination of the abnormality code of the elevator 1 and the control parameter. The restoration command is an operation command that can restore the elevator 1 from the abnormality. The recovery command indicates, for example, diagnostic operation to be executed after the elevator 1 is restarted. The restoration success rate is a probability that the elevator 1 is restored by a corresponding restoration command.
　図３は、実施の形態１における復旧指令データベースの一例を示す図である。 FIG. 3 is a diagram showing an example of the recovery command database in the first embodiment.
　例えば、図３における「戸開閉診断」という復旧指令と関連付けられている制御パラメータは、少なくともドアの動作を表すものとして正常でない情報を含んでいる。例えば、図３における「トルク診断」という復旧指令と関連付けられている制御パラメータは、少なくとも巻上機の動作を表すものとして正常でない情報を含んでいる。 For example, the control parameter associated with the recovery instruction “door opening / closing diagnosis” in FIG. 3 includes information that is not normal as representing at least the operation of the door. For example, the control parameter associated with the recovery command “torque diagnosis” in FIG. 3 includes information that is not normal as representing at least the operation of the hoisting machine.
　故障内容分析部１４は、故障判定部１１から異常コード及び制御パラメータが送信された場合に、当該異常コードと当該制御パラメータとの組合せで復旧指令データベース１３を検索する。 The failure content analysis unit 14 searches the recovery command database 13 with a combination of the abnormality code and the control parameter when the failure code and the control parameter are transmitted from the failure determination unit 11.
　運転指令部１５は、例えば、故障内容分析部１４による検索結果に含まれる復旧指令の中で、復旧成功率が一定値以上であり且つ最も高い復旧指令を選択する。運転指令部１５は、選択した復旧指令をエレベーター１の制御装置７に送信する。 The operation command unit 15 selects, for example, the highest recovery command having a recovery success rate equal to or higher than a certain value from among the recovery commands included in the search result by the failure content analysis unit 14. The operation command unit 15 transmits the selected recovery command to the control device 7 of the elevator 1.
　故障内容分析部１４は、例えば、検索結果に含まれる全ての復旧指令の復旧成功率が予め設定された基準値以下である場合に、保守作業者１８を出動させるための出動指令を出力する。この場合、運転指令部１５は、復旧指令の送信を行わない。基準値は、例えば、０％以上１００％未満の値に設定される。 The failure content analysis unit 14 outputs a dispatch command for dispatching the maintenance worker 18 when, for example, the recovery success rates of all the recovery commands included in the search result are equal to or less than a preset reference value. In this case, the operation command unit 15 does not transmit a recovery command. For example, the reference value is set to a value of 0% or more and less than 100%.
　故障内容分析部１４は、例えば、検索された異常コードと制御パラメータとの組合せが復旧指令データベース１３に存在しない場合に、当該組合せを新たに復旧指令データベース１３に登録する。この場合、故障内容分析部１４は、保守作業者１８を出動させるための出動指令を出力する。 For example, when the combination of the retrieved abnormal code and the control parameter does not exist in the recovery command database 13, the failure content analysis unit 14 newly registers the combination in the recovery command database 13. In this case, the failure content analysis unit 14 outputs a dispatch command for dispatching the maintenance worker 18.
　出動指令は、例えば、管理センター９に接続された表示装置等から報知されてもよい。出動指令は、例えば、保守作業者１８が使用する情報端末に対して送信されてもよい。 The dispatch command may be notified from, for example, a display device connected to the management center 9. The dispatch command may be transmitted to an information terminal used by the maintenance worker 18, for example.
　運転制御部１０は、運転指令部１５から送信された復旧指令に基づいてエレベーター１を動作させる。運転制御部１０は、例えば、管理センター９から制御装置７への応答が無い場合、エレベーター１の停止を継続させる。 The operation control unit 10 operates the elevator 1 based on the recovery command transmitted from the operation command unit 15. For example, when there is no response from the management center 9 to the control device 7, the operation control unit 10 continues to stop the elevator 1.
　復旧動作確認部１２は、例えば、故障判定部１１と同様の診断機能を有する。復旧動作確認部１２は、運転指令部１５から送信された復旧指令に基づいて動作した後のエレベーター１の制御パラメータが正常であるか否かを判定する。復旧動作確認部１２は、例えば、エレベーター１の制御パラメータが正常である場合に、復旧成功した旨を指令結果として管理センター９に送信する。復旧動作確認部１２は、例えば、エレベーター１の制御パラメータが正常でない場合に、復旧失敗した旨を指令結果として管理センター９に送信する。 The restoration operation confirmation unit 12 has a diagnostic function similar to that of the failure determination unit 11, for example. The recovery operation confirmation unit 12 determines whether or not the control parameters of the elevator 1 after operating based on the recovery command transmitted from the operation command unit 15 are normal. For example, when the control parameter of the elevator 1 is normal, the recovery operation confirmation unit 12 transmits a message indicating that the recovery has been successful to the management center 9 as a command result. For example, when the control parameter of the elevator 1 is not normal, the recovery operation confirmation unit 12 transmits a message indicating that the recovery has failed to the management center 9 as a command result.
　運転制御部１０は、例えば、復旧動作確認部１２によりエレベーター１の制御パラメータが正常でないと判定された場合に、エレベーター１を停止させる。 The operation control unit 10 stops the elevator 1 when the restoration operation confirmation unit 12 determines that the control parameters of the elevator 1 are not normal, for example.
　指令結果判定部１６は、復旧動作確認部１２から送信された情報に基づいて、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功したか否かを判定する。指令結果判定部１６は、例えば、復旧成功した旨の指令結果を復旧動作確認部１２から受信した場合、エレベーター１の復旧が成功したと判定する。指令結果判定部１６は、例えば、復旧失敗した旨の指令結果を復旧動作確認部１２から受信した場合、エレベーター１の復旧が成功していないと判定する。 The command result determination unit 16 determines whether or not the restoration of the elevator 1 has been successful based on the recovery command transmitted from the operation command unit 15 based on the information transmitted from the recovery operation confirmation unit 12. For example, when the command result indicating that the recovery is successful is received from the recovery operation confirmation unit 12, the command result determination unit 16 determines that the elevator 1 has been successfully recovered. For example, when the command result determination unit 16 receives a command result indicating that the recovery has failed from the recovery operation confirmation unit 12, the command result determination unit 16 determines that the recovery of the elevator 1 is not successful.
　データベース更新部１７は、例えば、指令結果判定部１６による判定結果に基づいて、復旧指令データベース１３を更新する。データベース更新部１７は、例えば、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功したと指令結果判定部１６により判定された場合に、復旧指令データベース１３に記憶されている当該復旧指令の復旧成功率を増加させる。データベース更新部１７は、例えば、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功していないと指令結果判定部１６により判定された場合に、復旧指令データベース１３に記憶されている当該復旧指令の復旧成功率を減少させる。復旧成功率の増加量及び減少量は、例えば、予め設定されている。 The database update unit 17 updates the recovery command database 13 based on the determination result by the command result determination unit 16, for example. For example, when the command result determination unit 16 determines that the recovery of the elevator 1 has been successfully recovered by the recovery command transmitted from the operation command unit 15, the database update unit 17 stores the recovery stored in the recovery command database 13. Increase the recovery success rate of the directive. The database update unit 17 is stored in the recovery command database 13 when, for example, the command result determination unit 16 determines that the recovery of the elevator 1 has not been successful by the recovery command transmitted from the operation command unit 15. Reduce the recovery success rate of the recovery order. The increase amount and the decrease amount of the recovery success rate are set in advance, for example.
　なお、運転指令部１５から復旧指令が送信されたにもかかわらず、指令結果判定部１６が復旧動作確認部１２からの情報を受信しなかった場合、データベース更新部１７は、例えば、復旧指令データベース１３を更新しない。つまり、当該復旧指令の復旧成功率は、据置きとされる。 If the command result determination unit 16 does not receive information from the recovery operation confirmation unit 12 even though the recovery command is transmitted from the operation command unit 15, the database update unit 17 may, for example, 13 is not updated. That is, the recovery success rate of the recovery command is deferred.
　上述したとおり、例えば、故障内容分析部１４による検索結果に含まれる復旧成功率が基準値以下である場合、及び、検索された異常コードと制御パラメータとの組合せが復旧指令データベース１３に存在しない場合には、運転指令部１５から復旧指令が送信されない。これらの場合、管理センター９から出動指令が出力される。保守作業者１８は、出動指令に従い、エレベーター１の設置場所で保守作業を実施する。 As described above, for example, when the recovery success rate included in the search result by the failure content analysis unit 14 is below the reference value, and when the combination of the searched abnormal code and the control parameter does not exist in the recovery command database 13 The recovery command is not transmitted from the operation command unit 15. In these cases, a dispatch command is output from the management center 9. The maintenance worker 18 performs maintenance work at the place where the elevator 1 is installed in accordance with the dispatch command.
　保守作業者１８は、例えば、エレベーター１を復旧させた後に、実施した保守作業の内容を管理センター９に入力する。データベース更新部１７は、例えば、保守作業者１８によって実施された保守作業の内容及び当該保守作業に対応する復旧指令の少なくとも一方を復旧指令データベース１３に登録する。 The maintenance worker 18 inputs the contents of the maintenance work performed to the management center 9 after the elevator 1 is restored, for example. The database update unit 17 registers, for example, at least one of the content of the maintenance work performed by the maintenance worker 18 and the recovery command corresponding to the maintenance work in the recovery command database 13.
　データベース更新部１７は、例えば、故障内容分析部１４による検索結果に含まれる復旧成功率が基準値以下であることを理由として出動指令が出力された場合、当該検索結果に含まれる復旧指令を保守作業の内容及び当該保守作業に対応する復旧指令の少なくとも一方で置き換える。この場合、データベース更新部１７は、例えば、当該検索結果に含まれる復旧成功率を１００％に設定する。 For example, when the dispatch command is output because the recovery success rate included in the search result by the failure content analysis unit 14 is equal to or less than the reference value, the database update unit 17 maintains the recovery command included in the search result. Replace at least one of the contents of the work and the restoration command corresponding to the maintenance work. In this case, for example, the database update unit 17 sets the recovery success rate included in the search result to 100%.
　データベース更新部１７は、例えば、検索された異常コードと制御パラメータとの組合せが復旧指令データベース１３に存在しないことを理由として出動指令が出力された場合、新たに登録された当該組合せに保守作業の内容及び当該保守作業に対応する復旧指令の少なくとも一方を関連付ける。この場合、データベース更新部１７は、例えば、当該組合せに関連付けられる保守作業の内容又は復旧指令の復旧成功率を１００％に設定する。 For example, when the dispatch command is output because the combination of the retrieved abnormal code and the control parameter does not exist in the recovery command database 13, the database update unit 17 performs maintenance work on the newly registered combination. Associate at least one of the contents and the restoration order corresponding to the maintenance work. In this case, for example, the database update unit 17 sets the content of the maintenance work associated with the combination or the recovery success rate of the recovery command to 100%.
　図４は、実施の形態１における制御装置の動作例を示すフローチャートの一部である。図５は、実施の形態１における制御装置の動作例を示すフローチャートの残部である。図４及び図５は、合わせて１つのフローチャートである。 FIG. 4 is a part of a flowchart showing an operation example of the control device according to the first embodiment. FIG. 5 is the remaining part of the flowchart showing an operation example of the control device according to the first embodiment. 4 and 5 are a flowchart in total.
　エレベーター１の電源がＯＮになると（ステップＳ１０１）、制御パラメータが初期化される（ステップＳ１０２）。制御装置７は、診断機能を開始し（ステップＳ１０３）、エレベーター１の通常運転を行う（ステップＳ１０４）。 When the power of the elevator 1 is turned on (step S101), the control parameters are initialized (step S102). The control device 7 starts a diagnostic function (step S103) and performs normal operation of the elevator 1 (step S104).
　制御装置７は、エレベーター１の通常運転中に、制御パラメータが正常であるか否かを判定する（ステップＳ１０５）。ステップＳ１０５で、制御パラメータが正常であると判定された場合、制御装置７は、通常運転を継続させる。 Control device 7 determines whether or not the control parameter is normal during normal operation of elevator 1 (step S105). If it is determined in step S105 that the control parameter is normal, the control device 7 continues normal operation.
　ステップＳ１０５で、制御パラメータが正常でないと判定された場合、制御装置７は、診断機能及び通常運転を終了させ（ステップＳ１０６）、エレベーター１を停止させる（ステップＳ１０７）。制御装置７は、正常でない制御パラメータを記録する（ステップＳ１０８）。制御装置７は、異常コードを出力する（ステップＳ１０９）。制御装置７は、制御パラメータと異常コードを管理センター９に送信する（ステップＳ１１０）。 If it is determined in step S105 that the control parameter is not normal, the control device 7 ends the diagnostic function and normal operation (step S106), and stops the elevator 1 (step S107). The control device 7 records an abnormal control parameter (step S108). The control device 7 outputs an abnormal code (step S109). The control device 7 transmits the control parameter and the abnormality code to the management center 9 (step S110).
　制御装置７は、例えば、ステップＳ１１０の処理から一定時間が経過するまでに管理センター９から応答があるか否かを判定する（ステップＳ１１１）。ステップＳ１１１で、管理センター９から応答があると判定された場合、制御装置７は、管理センター９から再起動指令があるか否かを判定する（ステップＳ１１２）。ステップＳ１１２で、管理センター９から再起動指令があると判定された場合、制御装置７は、再起動後に実行する復旧指令をＦｌａｓｈメモリに格納する（ステップＳ１１３）。ステップＳ１１３に続いて、制御装置７が再起動を行うと（ステップＳ１１４）、制御パラメータが初期化される（ステップＳ１１５）。 The control device 7 determines, for example, whether or not there is a response from the management center 9 until a predetermined time elapses from the processing of step S110 (step S111). When it is determined in step S111 that there is a response from the management center 9, the control device 7 determines whether there is a restart command from the management center 9 (step S112). If it is determined in step S112 that there is a restart command from the management center 9, the control device 7 stores a recovery command to be executed after the restart in the flash memory (step S113). Subsequent to step S113, when the control device 7 restarts (step S114), the control parameters are initialized (step S115).
　制御装置７は、Ｆｌａｓｈメモリに格納されている復旧指令を実行する（ステップＳ１１６）。その後、制御装置７は、制御パラメータが正常であるか否かを判定する（ステップＳ１１７）。ステップＳ１１７で、制御パラメータが正常であると判定された場合、制御装置７は、復旧成功した旨の指令結果を管理センター９に送信する（ステップＳ１１８）。ステップＳ１１８に続いて、制御装置７は、ステップＳ１０３の処理を行う。 The control device 7 executes the restoration command stored in the flash memory (step S116). Thereafter, the control device 7 determines whether or not the control parameter is normal (step S117). When it is determined in step S117 that the control parameter is normal, the control device 7 transmits a command result indicating that the recovery is successful to the management center 9 (step S118). Following step S118, the control device 7 performs the process of step S103.
　ステップＳ１１７で、制御パラメータが正常でないと判定された場合、制御装置７は、復旧失敗した旨の指令結果を管理センター９に送信する（ステップＳ１１９）。この場合、エレベーター１を復旧させるために保守作業者１８が出動する。ステップＳ１１９に続いて、制御装置７は、エレベーター１を停止させ（ステップＳ１２０）、電源をＯＦＦにする（ステップＳ１２１）。 When it is determined in step S117 that the control parameter is not normal, the control device 7 transmits a command result indicating that the restoration has failed to the management center 9 (step S119). In this case, a maintenance worker 18 is dispatched to restore the elevator 1. Following step S119, the control device 7 stops the elevator 1 (step S120) and turns off the power (step S121).
　ステップＳ１１１で管理センター９から応答が無いと判定された場合、及び、ステップＳ１１２で管理センター９から再起動指令が無いと判定された場合、制御装置７は、エレベーター１の停止を継続させる（ステップＳ１２２）。この場合、エレベーター１を復旧させるために保守作業者１８が出動する。ステップＳ１２２に続いて、制御装置７は、エレベーター１の電源をＯＦＦにする（ステップＳ１２３）。 If it is determined in step S111 that there is no response from the management center 9 and if it is determined in step S112 that there is no restart command from the management center 9, the control device 7 continues the stop of the elevator 1 (step S122). In this case, a maintenance worker 18 is dispatched to restore the elevator 1. Following step S122, the control device 7 turns off the power of the elevator 1 (step S123).
　図６は、実施の形態１における管理センターの動作例を示すフローチャートである。図６は、一例として、基準値が０％である場合を示している。 FIG. 6 is a flowchart showing an operation example of the management center in the first embodiment. FIG. 6 shows a case where the reference value is 0% as an example.
　管理センター９は、エレベーター１から異常コードと制御パラメータを受信する（ステップＳ２０１）。管理センター９は、当該異常コードと当該制御パラメータの組合せで復旧指令データベース１３を検索する（ステップＳ２０２）。管理センター９は、検索結果があるか否かを判定する（ステップＳ２０３）。ステップＳ２０３で、検索結果があると判定された場合、管理センター９は、検索結果に含まれる復旧成功率が０％であるか否かを判定する（ステップＳ２０４）。 The management center 9 receives the abnormality code and the control parameter from the elevator 1 (step S201). The management center 9 searches the recovery command database 13 with the combination of the abnormality code and the control parameter (step S202). The management center 9 determines whether there is a search result (step S203). When it is determined in step S203 that there is a search result, the management center 9 determines whether the recovery success rate included in the search result is 0% (step S204).
　ステップＳ２０４で、復旧成功率が０％でないと判定された場合、管理センター９は、検索結果の中で復旧成功率が最も高い復旧指令を選択する（ステップＳ２０５）。管理センター９は、選択した復旧指令をエレベーター１に送信する（ステップＳ２０６）。 When it is determined in step S204 that the recovery success rate is not 0%, the management center 9 selects a recovery command having the highest recovery success rate among the search results (step S205). The management center 9 transmits the selected restoration command to the elevator 1 (step S206).
　管理センター９は、例えば、ステップＳ２０６の処理から一定時間が経過するまでにエレベーター１から指令結果を受信したか否かを判定する（ステップＳ２０７）。ステップＳ２０７で、指令結果を受信したと判定された場合、管理センター９は、指令結果が復旧成功を示しているか否かを判定する（ステップＳ２０８）。 The management center 9 determines, for example, whether or not a command result has been received from the elevator 1 until a predetermined time has elapsed from the process of step S206 (step S207). If it is determined in step S207 that the command result has been received, the management center 9 determines whether or not the command result indicates a successful recovery (step S208).
　ステップＳ２０８で、指令結果が復旧成功を示していると判定された場合、管理センター９は、ステップＳ２０５で選択した復旧指令の復旧成功率を増加させる（ステップＳ２０９）。ステップＳ２０８で、指令結果が復旧失敗を示していると判定された場合、管理センター９は、ステップＳ２０５で選択した復旧指令の復旧成功率を減少させる（ステップＳ２１０）。 If it is determined in step S208 that the command result indicates a successful recovery, the management center 9 increases the recovery success rate of the recovery command selected in step S205 (step S209). If it is determined in step S208 that the command result indicates a failure in recovery, the management center 9 decreases the recovery success rate of the recovery command selected in step S205 (step S210).
　ステップＳ２０７で、指令結果を受信していないと判定された場合、管理センター９は、ステップＳ２０５で選択した復旧指令の復旧成功率を据置きにする（ステップＳ２１１）。 If it is determined in step S207 that the command result has not been received, the management center 9 defers the recovery success rate of the recovery command selected in step S205 (step S211).
　ステップＳ２０３で、検索結果が無いと判定された場合、管理センター９は、復旧指令データベース１３に異常コードと制御パラメータを登録する（ステップＳ２１２）。ステップＳ２１２に続いて、管理センター９は、出動指令を出力する（ステップＳ２１３）。ステップＳ２０４で、復旧成功率が０％であると判定された場合も、管理センター９は、ステップＳ２１３の処理を行う。ステップＳ２１３に続いて、管理センター９は、例えば、保守作業者１８による作業内容を復旧指令データベース１３に登録する（ステップＳ２１４）。管理センター９は、例えば、当該作業内容の復旧成功率を１００％に設定する（ステップＳ２１５）。 If it is determined in step S203 that there is no search result, the management center 9 registers an abnormal code and a control parameter in the recovery command database 13 (step S212). Subsequent to step S212, the management center 9 outputs a dispatch command (step S213). Even when it is determined in step S204 that the recovery success rate is 0%, the management center 9 performs the process of step S213. Subsequent to step S213, the management center 9 registers, for example, the work content of the maintenance worker 18 in the recovery command database 13 (step S214). For example, the management center 9 sets the recovery success rate of the work content to 100% (step S215).
　実施の形態１において、復旧指令データベース１３には、エレベーター１の異常コードと制御パラメータとの組合せごとに復旧指令及び復旧成功率が記憶されている。故障内容分析部１４は、エレベーター１から異常コード及び制御パラメータが送信された場合に、当該異常コードと当該制御パラメータとの組合せで復旧指令データベース１３を検索する。運転指令部１５は、例えば、故障内容分析部１４による検索結果に含まれる復旧指令の中で復旧成功率が一定値以上であり且つ最も高い復旧指令を選択し、当該選択された復旧指令をエレベーター１に送信する。このため、実施の形態１によれば、エレベーターに対して適切な復旧指令を遠隔操作で与えることができる。その結果、保守作業者が不必要に派遣されることを抑制することができる。 In the first embodiment, the recovery command database 13 stores a recovery command and a recovery success rate for each combination of the abnormality code of the elevator 1 and the control parameter. When an abnormal code and a control parameter are transmitted from the elevator 1, the failure content analysis unit 14 searches the recovery command database 13 with a combination of the abnormal code and the control parameter. For example, the operation command unit 15 selects a recovery command having a recovery success rate that is equal to or higher than a certain value from among the recovery commands included in the search result by the failure content analysis unit 14, and uses the selected recovery command as an elevator. 1 to send. For this reason, according to Embodiment 1, an appropriate restoration command can be given to the elevator by remote operation. As a result, unnecessary dispatch of maintenance workers can be suppressed.
　実施の形態１において、指令結果判定部１６は、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功したか否かを判定する。データベース更新部１７は、例えば、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功したと指令結果判定部１６により判定された場合に、復旧指令データベース１３に記憶されている当該復旧指令の復旧成功率を増加させる。データベース更新部１７は、例えば、運転指令部１５から送信された復旧指令によってエレベーター１の復旧が成功していないと指令結果判定部１６により判定された場合に、復旧指令データベース１３に記憶されている当該復旧指令の復旧成功率を減少させる。このため、実施の形態１によれば、復旧指令データベース１３に記憶されている復旧成功率をより適切な値に更新することができる。その結果、保守作業者が不必要に派遣されることを抑制することができる。 In the first embodiment, the command result determination unit 16 determines whether or not the restoration of the elevator 1 has been successful based on the recovery command transmitted from the operation command unit 15. For example, when the command result determination unit 16 determines that the recovery of the elevator 1 has been successfully recovered by the recovery command transmitted from the operation command unit 15, the database update unit 17 stores the recovery stored in the recovery command database 13. Increase the recovery success rate of the directive. The database update unit 17 is stored in the recovery command database 13 when, for example, the command result determination unit 16 determines that the recovery of the elevator 1 has not been successful by the recovery command transmitted from the operation command unit 15. Reduce the recovery success rate of the recovery order. For this reason, according to the first embodiment, the recovery success rate stored in the recovery command database 13 can be updated to a more appropriate value. As a result, unnecessary dispatch of maintenance workers can be suppressed.
　実施の形態１において、故障内容分析部１４は、例えば、検索結果に含まれる全ての復旧指令の復旧成功率が予め設定された基準値以下である場合に、保守作業者１８を出動させるための出動指令を出力する。運転指令部１５は、例えば、故障内容分析部１４による検索結果に含まれる全ての復旧指令の復旧成功率が基準値以下である場合に、エレベーター１に復旧指令を送信しない。このため、実施の形態１によれば、遠隔操作でエレベーターを復旧させられる可能性が低い場合に、保守作業者を派遣することができる。 In the first embodiment, for example, the failure content analysis unit 14 dispatches the maintenance worker 18 when the recovery success rate of all the recovery commands included in the search result is equal to or less than a preset reference value. Output dispatch command. For example, the operation command unit 15 does not transmit the recovery command to the elevator 1 when the recovery success rate of all the recovery commands included in the search result by the failure content analysis unit 14 is equal to or less than the reference value. For this reason, according to Embodiment 1, when it is unlikely that the elevator can be restored by remote operation, a maintenance worker can be dispatched.
　実施の形態１において、故障内容分析部１４は、例えば、検索された異常コードと制御パラメータとの組合せが復旧指令データベース１３に存在しない場合に、当該組合せを復旧指令データベース１３に登録し、保守作業者１８を出動させるための出動指令を出力する。このため、実施の形態１によれば、エレベーターを復旧させられる可能性が未知である異常が検出された場合に、保守作業者を派遣することができる。 In the first embodiment, for example, when the combination of the retrieved abnormal code and the control parameter does not exist in the recovery command database 13, the failure content analysis unit 14 registers the combination in the recovery command database 13 and performs maintenance work. The dispatch command for dispatching the person 18 is output. For this reason, according to the first embodiment, a maintenance worker can be dispatched when an abnormality in which the possibility of restoring the elevator is unknown is detected.
　実施の形態１において、データベース更新部１７は、例えば、保守作業者１８によって実施された保守作業の内容及び当該保守作業に対応する復旧指令の少なくとも一方を復旧指令データベース１３に登録する。このため、実施の形態１によれば、復旧できる可能性が低い異常又は未知の異常への適切な対処法を復旧指令データベース１３に蓄積していくことができる。これにより、遠隔操作でエレベーターが復旧可能となる確率を向上させることができる。 In the first embodiment, the database update unit 17 registers, for example, at least one of the content of the maintenance work performed by the maintenance worker 18 and the recovery command corresponding to the maintenance work in the recovery command database 13. For this reason, according to the first embodiment, it is possible to accumulate in the recovery command database 13 appropriate countermeasures for abnormalities or unknown abnormalities that are unlikely to be recovered. Thereby, the probability that the elevator can be restored by remote control can be improved.
　実施の形態１において、制御装置７は、例えば、復旧失敗した場合に即座にエレベーター１を停止させなくともよい。制御装置７は、例えば、ステップＳ１１９の次にステップＳ１０３の処理を行ってもよい。つまり、制御装置７は、例えば、管理センター９に対して繰り返し異常コード及び制御パラメータを送信してもよい。この場合、管理センター９の運転指令部１５は、例えば、制御装置７に対して繰り返し復旧指令を送信してもよい。 In the first embodiment, the control device 7 does not have to stop the elevator 1 immediately when, for example, the recovery fails. For example, the control device 7 may perform the process of step S103 after step S119. That is, for example, the control device 7 may repeatedly transmit the abnormal code and the control parameter to the management center 9. In this case, the operation command unit 15 of the management center 9 may repeatedly transmit a recovery command to the control device 7, for example.
　以下、制御装置７に対する復旧指令の送信が繰り返される場合における管理センター９の動作例を説明する。管理センター９は、例えば、復旧失敗を示す指令結果を一定回数以上連続して受信した場合に、選択した復旧指令の復旧成功率を０％に設定してもよい。つまり、データベース更新部１７は、例えば、運転指令部１５からの復旧指令の送信及び当該復旧指令によってエレベーター１の復旧が成功していないという指令結果判定部１６による判定が予め設定された一定回数以上連続してなされた場合に、当該復旧指令の復旧成功率を０％に設定してもよい。また、管理センター９は、例えば、復旧失敗を示す指令結果を一定回数以上連続して受信した場合に、出動指令を出力してもよい。つまり、故障内容分析部１４は、例えば、運転指令部１５からの復旧指令の送信及び当該復旧指令によってエレベーター１の復旧が成功していないという指令結果判定部１６による判定が予め設定された一定回数以上連続してなされた場合に、出動指令を出力してもよい。これにより、遠隔操作によるエレベーター１の復旧を複数回試みた上で、復旧失敗した場合には保守作業者１８を派遣することができる。 Hereinafter, an operation example of the management center 9 when the transmission of the recovery command to the control device 7 is repeated will be described. For example, the management center 9 may set the recovery success rate of the selected recovery command to 0% when the command result indicating the recovery failure is continuously received for a certain number of times or more. That is, the database update unit 17 transmits, for example, a recovery command from the operation command unit 15 and the determination by the command result determination unit 16 that the recovery of the elevator 1 is not successful by the recovery command is a predetermined number of times or more set in advance. When it is made continuously, the recovery success rate of the recovery command may be set to 0%. In addition, for example, the management center 9 may output a dispatch command when a command result indicating a failure in recovery is continuously received a predetermined number of times or more. That is, for example, the failure content analysis unit 14 transmits a recovery command from the operation command unit 15 and a predetermined number of times that the determination by the command result determination unit 16 that the recovery of the elevator 1 has not been successful by the recovery command is set in advance. The dispatch command may be output when the above is continuously performed. Thereby, after trying the restoration of the elevator 1 by remote operation a plurality of times, if the restoration fails, the maintenance worker 18 can be dispatched.
　図７は、管理センターのハードウェア構成図である。 FIG. 7 is a hardware configuration diagram of the management center.
　管理センター９における復旧指令データベース１３、故障内容分析部１４、運転指令部１５、指令結果判定部１６及びデータベース更新部１７の各機能は、処理回路により実現される。処理回路は、専用ハードウェア５０であってもよい。処理回路は、プロセッサ５１及びメモリ５２を備えていてもよい。処理回路は、一部が専用ハードウェア５０として形成され、更にプロセッサ５１及びメモリ５２を備えていてもよい。図７は、処理回路が、その一部が専用ハードウェア５０として形成され、プロセッサ５１及びメモリ５２を備えている場合の例を示している。 The functions of the recovery command database 13, the failure content analysis unit 14, the operation command unit 15, the command result determination unit 16, and the database update unit 17 in the management center 9 are realized by a processing circuit. The processing circuit may be dedicated hardware 50. The processing circuit may include a processor 51 and a memory 52. A part of the processing circuit is formed as dedicated hardware 50, and may further include a processor 51 and a memory 52. FIG. 7 shows an example in which the processing circuit is partly formed as dedicated hardware 50 and includes a processor 51 and a memory 52.
　処理回路の少なくとも一部が、少なくとも１つの専用ハードウェア５０である場合、処理回路は、例えば、単一回路、複合回路、プログラム化したプロセッサ、並列プログラム化したプロセッサ、ＡＳＩＣ、ＦＰＧＡ、又はこれらを組み合わせたものが該当する。 When at least a part of the processing circuit is at least one dedicated hardware 50, the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or the like. The combination is applicable.
　処理回路が少なくとも１つのプロセッサ５１及び少なくとも１つのメモリ５２を備える場合、復旧指令データベース１３、故障内容分析部１４、運転指令部１５、指令結果判定部１６及びデータベース更新部１７の各機能は、ソフトウェア、ファームウェア、又はソフトウェアとファームウェアとの組み合わせにより実現される。ソフトウェア及びファームウェアはプログラムとして記述され、メモリ５２に格納される。プロセッサ５１は、メモリ５２に記憶されたプログラムを読み出して実行することにより、各部の機能を実現する。プロセッサ５１は、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、中央処理装置、処理装置、演算装置、マイクロプロセッサ、マイクロコンピュータ、ＤＳＰともいう。メモリ５２は、例えば、ＲＡＭ、ＲＯＭ、フラッシュメモリー、ＥＰＲＯＭ、ＥＥＰＲＯＭ等の、不揮発性又は揮発性の半導体メモリ、磁気ディスク、フレキシブルディスク、光ディスク、コンパクトディスク、ミニディスク、ＤＶＤ等が該当する。 When the processing circuit includes at least one processor 51 and at least one memory 52, each function of the recovery command database 13, the failure content analysis unit 14, the operation command unit 15, the command result determination unit 16, and the database update unit 17 is software , Firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52, thereby realizing the function of each unit. The processor 51 is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and 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, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.
　このように、処理回路は、ハードウェア、ソフトウェア、ファームウェア、又はこれらの組み合わせによって、管理センター９の各機能を実現することができる。なお、制御装置７の各機能も、図７に示す処理回路と同様の処理回路により実現される。 Thus, the processing circuit can realize each function of the management center 9 by hardware, software, firmware, or a combination thereof. Each function of the control device 7 is also realized by a processing circuit similar to the processing circuit shown in FIG.
　以上のように、本発明は、遠隔操作可能なエレベーターに適用できる。 As described above, the present invention can be applied to a remotely operable elevator.
１　エレベーター
２　昇降路
３　巻上機
４　ロープ
５　かご
６　釣合おもり
７　制御装置
８　保守装置
９　管理センター
１０　運転制御部
１１　故障判定部
１２　復旧動作確認部
１３　復旧指令データベース
１４　故障内容分析部
１５　運転指令部
１６　指令結果判定部
１７　データベース更新部
１８　保守作業者
５０　専用ハードウェア
５１　プロセッサ
５２　メモリ DESCRIPTION OF SYMBOLS 1 Elevator 2 Hoistway 3 Hoisting machine 4 Rope 5 Car 6 Counterweight 7 Control device 8 Maintenance device 9 Management center 10 Operation control part 11 Failure determination part 12 Restoration operation confirmation part 13 Restoration command database 14 Failure content analysis part 15 Operation Command unit 16 Command result determination unit 17 Database update unit 18 Maintenance worker 50 Dedicated hardware 51 Processor 52 Memory

Claims (7)

  1. 　エレベーターの異常コードと制御パラメータとの組合せごとに復旧指令及び復旧成功率が記憶されている復旧指令データベースと、
    　エレベーターから異常コード及び制御パラメータが送信された場合に、当該異常コードと当該制御パラメータとの組合せで前記復旧指令データベースを検索する故障内容分析部と、
    　前記故障内容分析部による検索結果に含まれる復旧指令の中で復旧成功率が最も高い復旧指令をエレベーターに送信する運転指令部と、
    　前記運転指令部から送信された復旧指令に基づいてエレベーターを動作させる運転制御部と、
    を備えたエレベーター制御システム。     A recovery command database in which a recovery command and a recovery success rate are stored for each combination of an elevator error code and control parameters;
    When an abnormal code and a control parameter are transmitted from the elevator, a failure content analysis unit that searches the recovery command database with a combination of the abnormal code and the control parameter;
    An operation command unit that transmits a recovery command having the highest recovery success rate to the elevator among the recovery commands included in the search result by the failure content analysis unit,
    An operation control unit for operating the elevator based on the recovery command transmitted from the operation command unit;
    Elevator control system with
  2. 　前記運転指令部から送信された復旧指令によってエレベーターの復旧が成功したか否かを判定する指令結果判定部と、
    　前記運転指令部から送信された復旧指令によってエレベーターの復旧が成功したと前記指令結果判定部により判定された場合に当該復旧指令の復旧成功率を増加させ、前記運転指令部から送信された復旧指令によってエレベーターの復旧が成功していないと前記指令結果判定部により判定された場合に当該復旧指令の復旧成功率を減少させるデータベース更新部と、
    を備えた請求項１に記載のエレベーター制御システム。     A command result determination unit that determines whether or not the restoration of the elevator is successful by the recovery command transmitted from the operation command unit;
    The recovery command transmitted from the operation command unit is increased by increasing the recovery success rate of the recovery command when the command result determining unit determines that the elevator has been successfully recovered by the recovery command transmitted from the operation command unit. A database update unit that reduces the recovery success rate of the recovery command when the command result determination unit determines that the elevator recovery is not successful by
    The elevator control system according to claim 1 provided with.
  3. 　前記故障内容分析部は、検索結果に含まれる全ての復旧指令の復旧成功率が予め設定された基準値以下である場合に、保守作業者を出動させるための出動指令を出力し、
    　前記運転指令部は、前記故障内容分析部による検索結果に含まれる全ての復旧指令の復旧成功率が前記基準値以下である場合に、エレベーターに復旧指令を送信しない請求項２に記載のエレベーター制御システム。     The failure content analysis unit outputs a dispatch command for dispatching a maintenance worker when the recovery success rate of all the recovery commands included in the search result is equal to or less than a preset reference value,
    3. The elevator control according to claim 2, wherein the operation command unit does not transmit a recovery command to the elevator when a recovery success rate of all the recovery commands included in the search result by the failure content analysis unit is equal to or less than the reference value. system.
  4. 　前記故障内容分析部は、検索された異常コードと制御パラメータとの組合せが前記復旧指令データベースに存在しない場合に、当該組合せを前記復旧指令データベースに登録し、保守作業者を出動させるための出動指令を出力する請求項２又は３に記載のエレベーター制御システム。 The failure content analysis unit, when the combination of the retrieved abnormal code and the control parameter does not exist in the recovery command database, registers the combination in the recovery command database, and dispatch command for dispatching the maintenance worker The elevator control system according to claim 2 or 3 which outputs.
  5. 　前記故障内容分析部は、前記運転指令部からの復旧指令の送信及び当該復旧指令によってエレベーターの復旧が成功していないという前記指令結果判定部による判定が予め設定された一定回数以上連続してなされた場合に、保守作業者を出動させるための出動指令を出力する請求項２から４のいずれか１項に記載のエレベーター制御システム。 The failure content analysis unit continuously performs transmission of a recovery command from the operation command unit and determination by the command result determination unit that the restoration of the elevator is not successful by the recovery command for a predetermined number of preset times or more. The elevator control system according to any one of claims 2 to 4, wherein a dispatch command for dispatching a maintenance worker is output when the maintenance worker is dispatched.
  6. 　前記データベース更新部は、前記運転指令部からの復旧指令の送信及び当該復旧指令によってエレベーターの復旧が成功していないという前記指令結果判定部による判定が予め設定された一定回数以上連続してなされた場合に、当該復旧指令の復旧成功率を０％に設定する請求項２から５のいずれか１項に記載のエレベーター制御システム。 The database update unit continuously transmits a recovery command from the operation command unit and the determination by the command result determination unit that the restoration of the elevator is not successful by the recovery command is more than a predetermined number of times set in advance. In this case, the elevator control system according to any one of claims 2 to 5, wherein a recovery success rate of the recovery command is set to 0%.
  7. 　前記データベース更新部は、保守作業者によって実施された保守作業の内容及び当該保守作業に対応する復旧指令の少なくとも一方を前記復旧指令データベースに登録する請求項２から６のいずれか１項に記載のエレベーター制御システム。 7. The database update unit according to claim 2, wherein the database update unit registers at least one of a content of a maintenance work performed by a maintenance worker and a restoration command corresponding to the maintenance job in the restoration command database. 8. Elevator control system.
PCT/JP2016/088733 2016-12-26 2016-12-26 Elevator control system WO2018122927A1 (en)

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