WO2018134905A1 - Elevator malfunction remote recovery system and elevator malfunction recovery system - Google Patents

Abstract

An elevator control device (200) transmits a malfunction signal to a remote recovery device (300) upon detecting the occurrence of self-locking in which engagement between a movable hook (563) of a movable engagement member (559A) and a fixed hook (564) of a fixed engagement member (559B) is not released although the movable hook (563) is biased in the opening direction by a vane (537) serving as a biasing member. Upon reception of the malfunction signal, the information processing device (360) of the remote recovery device (300) causes the elevator control device (200) to perform self-locking release processing operation for causing a car door motor (545) to repeat opening and closing movement so that the vane (537) intermittently strikes the roller (562) of the movable engagement member (559A) in the opening direction. In this way, the self-locking can be released.

Description

Elevator failure remote recovery system and elevator failure recovery system

The present invention relates to a system for recovering when a failure occurs in an elevator.

There are two types of elevator door devices: a cage door device and a landing door device, and a lock device is provided on the hoistway side surface of the landing door device to prevent the door from opening. The locking device includes, for example, a hook-shaped movable hook and a fixed hook that engages with the hook. For example, a fulcrum of a movable hook is fixed to a landing door plate, and the movable hook can pivot about this fulcrum. The fixing hook is fixed to the hoistway. When the cage door device is not landing, the movable hook is engaged with the fixed hook, and the landing door is prevented from opening (door opening).

The cage door plate facing the landing door plate is provided with a plate material called a vane. When the cage door device is in the landing state, the vane of the cage door plate and the movable hook of the landing door plate are close to each other. Further, as the cage door plate opens (the door is opened), the vane moves to urge the movable hook and pivot the movable hook in the opening direction opposite to the engaging direction. Thereby, the movable hook and the fixed hook are opened, and the cage door plate and the landing door plate are interlocked and opened (door open).

When opening or closing the door, the door may not be opened or closed due to clogging of the opening and closing path. In Patent Documents 1 and 2, the doors are repeatedly opened and closed to remove foreign substances.

JP-A-4-371480 Japanese Patent Laid-Open No. 9-309682

Incidentally, there are cases where the fixed hook and the movable hook are firmly engaged (fitted). In such a case, even if the movable hook is urged in the opening direction by the vane, the movable hook is not separated from the fixed hook, and the engagement state of both the hooks is maintained. Therefore, an object of the present invention is to provide an elevator failure recovery system capable of releasing the self-lock.

The elevator failure remote recovery system according to the present invention includes a lock device, an urging member, a cage door motor, an elevator control device, and a remote recovery device. The lock device is provided on the side of the landing door device that faces the cage door device, and is movable to a fixed engagement member, an engagement position that engages with the fixed engagement member, and an open position that is separated from the fixed engagement member. A movable engaging member. The biasing member is provided on the side of the cage door device that faces the landing door device and moves with the cage door plate of the cage door device, and closes to the movable engagement member when the cage door device is landed on the floor of the landing door device. The movable engagement member is urged in the opening direction from the engagement position toward the opening position as the basket door plate moves. The cage door motor opens and closes the cage door plate. The elevator control device controls the cage door motor. The remote recovery device communicates with the elevator control device and causes the elevator control device to perform a failure recovery operation. The elevator control device fails when it detects the occurrence of self-locking in which the engagement between the movable engagement member and the fixed engagement member is not released although the movable engagement member is urged in the opening direction by the urging member. Send a signal to the remote recovery device. When the remote recovery device receives a failure signal, it cancels the self-lock that causes the cage door motor to repeatedly open and close so that the biasing member intermittently impacts the movable engagement member in the opening direction. The processing operation is executed by the elevator control device.

In the above invention, a door encoder for detecting the opening degree of the cage door plate may be provided. In this case, the elevator control device performs self-locking when the opening degree of the cage door plate acquired from the door encoder after a predetermined period from when the door opening command is output to the cage door motor is less than a predetermined threshold opening degree. It may be determined that has occurred.

In the above invention, the elevator control device determines that the self-lock is released when the opening degree of the cage door plate acquired from the door encoder is equal to or greater than a predetermined threshold opening degree during the self-lock release processing operation. Also good.

In the above invention, the elevator control device remotely recovers the failure signal when receiving the opening detection signal from the landing door switch for detecting the opening of the landing door plate of the landing door device in addition to detecting the occurrence of self-locking. It may be sent to the device.

Further, in the above invention, the remote recovery device may determine a repetitive cycle of the opening / closing operation of the cage door motor in the self-lock release processing operation based on the weight of the cage door plate.

The elevator failure recovery system according to the present invention includes a lock device, an urging member, a cage door motor, and an elevator control device. The lock device is provided on the side of the landing door device that faces the cage door device, and is movable to a fixed engagement member, an engagement position that engages with the fixed engagement member, and an open position that is separated from the fixed engagement member. A movable engaging member. The biasing member is provided on the side of the cage door device that faces the landing door device and moves with the cage door plate of the cage door device, and closes to the movable engagement member when the cage door device is landed on the floor of the landing door device. The movable engagement member is urged in the opening direction from the engagement position toward the opening position as the basket door plate moves. The cage door motor opens and closes the cage door plate. The elevator control device controls the cage door motor. When the elevator control device detects the occurrence of self-locking in which the engagement between the movable engagement member and the fixed engagement member is not released despite the biasing member biasing the movable engagement member in the opening direction, A self-lock release processing operation is executed in which the cage door motor is repeatedly opened and closed so that the urging member intermittently applies an impact to the movable engagement member in the opening direction.

In the above invention, a door encoder for detecting the opening degree of the cage door plate may be provided. In this case, the elevator control device performs self-locking when the opening degree of the cage door plate acquired from the door encoder after a predetermined period from when the door opening command is output to the cage door motor is less than a predetermined threshold opening degree. It may be determined that has occurred.

In the above invention, the elevator control device determines that the self-lock is released when the opening degree of the cage door plate acquired from the door encoder is equal to or greater than a predetermined threshold opening degree during the self-lock release processing operation. Also good.

Further, in the above invention, the elevator control device may determine a repetition period of the opening / closing operation of the cage door motor in the self-lock release processing operation based on the weight of the cage door plate.

According to the present invention, the self-lock can be released.

It is a distribution diagram showing the composition of the remote restoration system of the elevator failure in the embodiment of the present invention. It is a functional block diagram of the remote recovery system of the elevator failure in the embodiment of the present invention. It is a figure which shows the structure of the maintenance database shown in FIG. It is a figure which shows the structure of the recovery diagnostic database shown in FIG. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a figure which shows the structure of another recovery diagnostic database. It is a figure which shows the structure of another recovery diagnostic database. It is a functional block diagram of the remote recovery system of the elevator failure in the embodiment of the present invention. It is a figure which illustrates an elevator door apparatus. It is a figure which illustrates a landing door apparatus. It is a figure which illustrates a locking device. It is a figure which shows the example which a locking device transfers to an open state from an engagement state normally. It is a figure explaining the self-lock of a locking device. It is a figure explaining the self-lock cancellation | release process driving | operation. It is a figure which illustrates the self-lock presence / absence determination flow. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a flowchart which shows operation | movement of the remote recovery system of the elevator failure in embodiment of this invention. It is a figure which illustrates the content of the failure code 0012 (door failure) preserve | saved at the recovery diagnostic database. It is the time chart which illustrated operation | movement of each apparatus from generation | occurrence | production to cancellation | release from a self-lock. It is a flowchart which shows recovery operation | movement of the elevator failure by an elevator control apparatus.

Hereinafter, an elevator failure remote recovery system 100 according to this embodiment will be described with reference to the drawings. As shown in FIG. 1, the remote recovery system 100 communicates with the elevator control device 200 that performs drive control of the elevator 20 disposed in the hoistway 11 of the building 10, and the elevator control device 200, and the elevator 20 fails. And a remote recovery device 300 for performing the recovery operation. There may be one elevator 20 or a plurality of elevators 20 that cause the remote recovery device 300 to perform the recovery operation. When there are a plurality of elevators 20, each elevator 20 may be installed in the same building 10 or may be installed in different buildings 10.

The elevator control device 200 includes a control panel 210 that performs drive control of the elevator 20 and a communication device 250. The control panel 210 is a computer including a CPU and a memory inside. The remote recovery device 300 includes a remote monitoring center 310 including a communication device 320 and a monitoring panel 330, an information processing device 360, a maintenance database 370, and a recovery diagnosis database 380. The remote monitoring center 310, the information processing apparatus 360, the maintenance database 370, and the recovery diagnosis database 380 may be installed in the same place, or may be installed in different places and connected to each other via an Internet line or the like. Good.

The communication device 250 is connected to the control panel 210 and transmits an output from the control panel 210 to the communication network 30. Further, the communication device 250 receives a command for the control panel 210 selected by the information processing device 360 with reference to the recovery diagnosis database 380 via the communication device 320 and the communication network 30 and outputs the command to the control panel 210. The communication device 320 receives a signal from the control panel 210 via the communication device 250 and the communication network 30 and outputs the signal to the information processing device 360. In addition, the communication device 320 transmits a command for the control panel 210 selected by the information processing device 360 to the communication network 30. The communication devices 250 and 320 may be devices that perform wireless communication or devices that perform wired communication. The communication network 30 may be an Internet communication network or a telephone line network.

The remote monitoring center 310 is provided with a monitoring panel 330 that exchanges data with the information processing device 360 and monitors the operation status and failure status of the elevator 20. The monitoring panel 330 is provided with a display 331 for displaying an operation status of the elevator 20, a failure status, a notification from the information processing device 360, and the like, and a switch 332 for operating the display of the display 331. The monitoring panel 330 is provided with a telephone 333 that communicates with the service center 340 via the communication network 35.

The maintenance database 370 stores history data such as specifications, inspections, maintenance, and repairs of the elevator 20. The restoration diagnosis database 380 stores a plurality of failure factors corresponding to the failure code output from the control panel 210 of the elevator 20, the number of cases, and data such as a restoration rate.

The information processing apparatus 360 is a computer that includes a CPU and a memory therein. A failure signal output from the control panel 210 when a failure occurs in the elevator 20 is input to the information processing device 360 via the communication devices 250 and 320 and the communication network 30. When the failure signal is input, the information processing device 360 refers to the data of the recovery diagnosis database 380 and selects a recovery instruction and a recovery diagnosis instruction corresponding to the failure code included in the failure signal. The selected restoration command and restoration diagnosis command are input to the control panel 210 via the communication devices 250 and 320 and the communication network 30, and cause the elevator 20 to execute a restoration operation and a restoration diagnosis operation.

As shown in FIG. 2, the maintenance database 370 includes elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, failure history data 377. In addition, failure factor-specific data 378 and operation history data 379 are stored. The data structure of the operation history data 379 will be described later.

Hereinafter, with reference to FIG. 3, elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, failure history data 377, by failure factor The data structure of the data 378 will be described.

The elevator specification data 371 has a data structure for storing the management number, model, date of manufacture, manufacturing number, name of the installed building, and usage data of the installed building of the elevator 20. The use of the installed building is, for example, an office, a general residence, a restaurant, a school, and the like.

The inspection history data 372 has a data structure for storing the control number of the elevator 20, the date and time of inspection conducted by the engineer 350 on the site, inspection items, and inspection result data. The inspection includes, for example, inspection of the open / closed state of the doors 13 and 26 of the elevator 20 shown in FIG. 23 inspection, traveling speed inspection, and the like. In addition, whether or not an abnormality has been found as a result of the inspection, whether an abnormality has not been found but maintenance work such as cleaning is necessary, or parts need to be replaced soon are input as the inspection result. In FIG. 1, reference numeral 25 denotes a weight.

The maintenance work history data 373 has a database structure for storing the control number of the elevator 20, the maintenance work date and time of the elevator 20 performed by the engineer 350 in the field, maintenance work items, and maintenance work results. The maintenance work items include, for example, inspection of the operation state of the elevator 20, cleaning of the door rail of the elevator 20, refueling to the driving device 24 shown in FIG. 1, adjustment of the brake of the elevator 20, and the like. The results of maintenance, cleaning, refueling, adjustment, etc. are entered in the maintenance work results.

The remote inspection history data 374 has a data structure for storing the control number of the elevator 20, the remote inspection date and time, the remote inspection item, and the remote inspection result. The remote inspection of the elevator 20 is performed by the control panel 210 of the elevator 20 according to a preset schedule such as once a month, for example. The control panel 210 of the elevator 20 moves the cage 22 of the elevator 20 shown in FIG. 1 to a predetermined floor. During this movement, various sensors attached to the elevator 20 are checked for abnormalities in driving performance (acceleration, presence or absence of abnormal noise), door opening / closing, brakes, emergency batteries, external communication devices, and the like. The inspection result is stored in the remote inspection history data 374 from the information processing device 360 via the communication devices 250 and 320 and the communication network 30. The remote inspection may be performed according to an instruction from the remote monitoring center 310.

The modulation history data 375 has a data structure for storing the management number of the elevator 20, the modulation occurrence date and time, the modulation item, and the modulation correspondence result. The modulation of the elevator 20 refers to a case where the result of the inspection, inspection, maintenance work or remote inspection by the engineer 350 does not reach the abnormal value but changes from the normal value of the elevator 20. . For example, as a result of checking the traveling speed, the value is within the allowable value, but when the previous check or when the deviation of the elevator 20 from the value of the previous check result is large, the modulation item Recorded as “traveling speed”.

The repair work history data 376 has a data structure for storing the control number of the elevator 20, the repair work date, the repair work item, and the repair work result. The repair work is a restoration work by replacement of parts such as replacement of the wire 23, replacement of the hanger roller, replacement of the brake pad, replacement of the control board, and replacement of the relay. Therefore, the name of the replacement part such as “wire replacement”, “hanger roller replacement”, “brake pad replacement”, etc. is entered in the repair work item, and “repair work completed”, “re-repair” are entered in the repair work result column. Items such as “Necessary” are entered.

The failure history data 377 has a data structure for storing a management number of the elevator 20, a failure occurrence date and time, a failure code, a recovery method, and a recovery determination result. The failure code is a code output from the control panel 210 when a failure occurs in the elevator 20 or a combination of numbers and English letters. The types of failure codes are, for example, about 1000 types. For example, when the engineer 350 is dispatched to perform inspection, inspection, and recovery, the restoration method item is input as “engineer dispatch”. Further, in the item of the recovery method, for example, when the remote recovery system 100 recovers, “Remote recovery” is input. In the item of the restoration determination result, when the elevator 20 is restored and the operation is resumed, “Recovery” is input. In addition, in the item of the restoration determination result, when the elevator 20 fails to be restored, “failure” is input.

The failure factor-specific data 378 includes the number of failure factors corresponding to the failure code as a result of inspection and inspection by the engineer 350 when a certain failure code is output from the control panel 210, and remote Stored is the total number of failure factors corresponding to the failure code when the recovery system 100 recovers. For example, when the failure code is 0001 indicating a failure related to the doors 13 and 26, the engineer 350 inspected the site, and as a result, the cause of the output of the failure code “0001” is the clogging of the door sill (failure factor 1). Or a contact failure of the switch of the door opening / closing device (failure factor 2), or other failure factor 3. Therefore, the failure factor-specific data includes 100 cases of a door clogging factor (failure factor 1) when a failure code “0001” is output, and a contact failure of the door opening / closing device switch (failure factor 2). ) In the data structure such that 50 cases and other failure factor 3 cases are 10 cases, and the data is arranged in descending order of the number of cases. In the case of recovery by the remote recovery system 100, when the elevator 20 is successfully recovered by the recovery command, the number of failure factors corresponding to the failure code that is the basis of the recovery command is added to the total number of failure factors.

As shown in FIG. 4, the restoration diagnosis database 380 includes a restoration diagnosis instruction set that is a set of restoration instructions and restoration diagnosis instructions in descending order of the number of failure causes in the failure cause-specific data 378, and elevators by executing the restoration instructions. Stored is a recovery rate (%), which is the rate at which 20 failures have been recovered. The restoration diagnosis database 380 is a database in which the restoration diagnosis command set and the restoration rate are linked to the failure factor-specific data 378 described above.

Hereinafter, the data configuration of the recovery diagnosis database 380 when the failure code is “0001” indicating a failure related to the doors 13 and 26 will be described. If the door sill is clogged (Failure factor 1), the restoration diagnosis data will be “Failure factor 1”, “Door circuit reset + door high torque open / close” as the restoration command, and “Door open / close diagnostic” as the restoration diagnostic command. The data structure is such that a recovery diagnosis command set A, which is a set of two commands, and a recovery rate x% by a recovery operation by this recovery command are linked. Similarly, when the contact failure of the door opening / closing device switch is the cause (failure factor 2), the restoration diagnosis data is “door circuit reset + door opening / retry retry” as the restoration command in the number of failure cause 2 data, restoration diagnosis. The data structure is such that a recovery diagnosis command set B, which is a set of two commands of “door opening / closing diagnosis”, and a recovery rate y% of the recovery operation by this recovery command are linked as commands. Similarly, in the case of the failure factor 3, the recovery diagnosis data has a data configuration in which the recovery diagnosis command set C and the recovery rate z% are linked to the number data of the failure factor 3. As described above, the recovery diagnosis database 380 includes the failure code, the failure factor corresponding to the failure code, the number of the failure factors, the recovery diagnosis command set that is a set of the recovery command and the recovery diagnosis, and the recovery rate. It is stored in the database in association. In this embodiment, the recovery rate y% is a larger value than the recovery rates x% and z%, and the recovery diagnosis command set B has a higher recovery rate than the recovery diagnosis command set A and the recovery diagnosis command set C. ing.

Hereinafter, the operation of the remote recovery system 100 when a failure signal is transmitted from the elevator 20 will be described with reference to FIGS. 2, 5, and 6. In the following description, the remote recovery operation when the failure code signal “0001” regarding the doors 13 and 26 is first transmitted will be described. Next, a remote recovery operation when a failure code “0002” related to a control circuit incorporated in the control panel 210 is transmitted will be described. Next, the remote recovery operation when a failure code “0003” related to the brake in the drive unit 24 is transmitted will be described. The remote recovery system 100 can also cope with a case where a failure code related to a part other than the above is transmitted.

2 and FIG. 5, the control panel 210 of the elevator 20 determines whether or not a failure has occurred in the elevator 20. When a failure relating to the doors 13 and 26 of the elevator 20, for example, a failure such as a door opening / closing failure, the control panel 210 displays a failure code “0001” indicating the failure occurrence date and time and the failure is a failure relating to the door. Output to 250. If no failure occurs in the elevator 20, the control panel 210 returns to the beginning of step S <b> 101 and continues monitoring the elevator 20.

When the failure code “0001” is input from the control panel 210, the communication device 250, as shown in step S102 of FIGS. 2 and 5, includes the failure code “0001”, the management number of the elevator 20, and the failure occurrence date and time. A signal is transmitted to the communication network 30. 2 and 5, the communication device 320 of the remote monitoring center 310 receives the failure signal transmitted from the communication device 250 via the communication network 30. When receiving the failure signal, the communication device 320 outputs the failure code “0001” included in the failure signal, the management number of the elevator 20, and the failure occurrence date and time to the information processing device 360. The information processing apparatus 360 stores the input failure code “0001”, the management number of the elevator 20, and the failure occurrence date / time in the failure history data 377 of the maintenance database 370.

Then, the information processing apparatus 360 determines whether or not the failed elevator 20 can be remotely recovered, as shown in step S104 of FIG. As shown in FIGS. 2 and 3, the information processing device 360 acquires the model, manufacturing date, and manufacturing number of the elevator 20 from the elevator specification data 371 using the management number of the elevator 20. Based on the acquired specification data, the information processing device 360 confirms whether the elevator 20 has a specification that allows a recovery operation and a recovery diagnosis operation based on a recovery command and a recovery diagnosis command from the remote recovery device 300. When the elevator 20 is a model incapable of remote recovery operation, the information processing device 360 outputs a signal notifying the remote monitoring center 310 that remote recovery is impossible, as shown in step S124 in FIGS. To do.

Further, as shown in FIG. 2, the information processing apparatus 360 refers to inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, and failure history data 377. The following (a) to (f) are confirmed.
(A) The elevator 20 has been instructed to re-adjust in a recent inspection.
(B) The elevator 20 has a maintenance plan recently or on the day, and the possibility of misadjustment is predicted.
(C) There was an abnormality diagnosis result in the elevator 20 by remote inspection.
(D) Recently, the elevator 20 has been modulated.
(E) The elevator 20 has recently been repaired.
(F) The elevator 20 has recently transmitted a failure signal with the same failure code “0001”.

If any one or more of the above (a) to (f) is applicable, the information processing apparatus 360 should dispatch the engineer 350 to the building 10 rather than the recovery by the remote recovery system 100. And NO is determined in step S104 of FIG. 2 and 5, the information processing apparatus 360 outputs a notification that remote recovery is not possible to the remote monitoring center 310.

Furthermore, the information processing apparatus 360 confirms whether the building 10 is a building with many false signal transmissions from the elevator specification data 371 and the failure history data 377 using the management number of the elevator 20. In such a case, the information processing apparatus 360 determines that it is better to dispatch the engineer 350 to the building 10 than the recovery by the remote recovery system 100 because there is a high possibility of erroneous transmission of a failure signal. 5 is judged NO. Then, the information processing apparatus 360 outputs a remote recovery impossible notification to the remote monitoring center 310 as shown in step S124 of FIGS.

The notification that remote recovery is not possible, which is output from the information processing device 360 to the remote monitoring center 310, is displayed on the display 331 of the remote monitoring center 310 as shown in FIG. After confirming this display, the supervisor 334 causes the elevator 20 to stop operating and announce as shown in step S125 of FIGS. 2 and 6. Then, the supervisor 334 instructs the service center 340 in the vicinity of the building 10 to dispatch the engineer 350 to the building 10 by the telephone 333 as shown in step S126 of FIGS.

When it is determined in step S104 in FIG. 5 that the elevator 20 cannot be remotely restored, the information processing apparatus 360 displays the input failure code “0001”, the management number of the elevator 20, and the failure occurrence date and time in the maintenance database in step S103. The failure history data 377 of 370 is stored. Then, the information processing apparatus 360 ends the remote recovery operation without updating other data in the maintenance database 370 and updating the recovery diagnosis database 380.

On the other hand, in step S104 shown in FIG. 5, the information processing apparatus 360, as shown in FIG. 2, the inspection history data 372, the maintenance work history data 373, the remote inspection history data 374, the modulation history data 375, and the repair work history data 376. Then, the following (g) to (n) are confirmed with reference to the failure history data 377.
(G) It is a specification that allows the elevator 20 to perform a recovery operation and a recovery diagnosis operation by a recovery command and a recovery diagnosis command from the remote recovery device 300.
(H) The elevator 20 has not been instructed to re-adjust in a recent inspection.
(I) The elevator 20 has no maintenance plan recently or on the day, and the possibility of misadjustment is not predicted.
(J) There is no abnormality diagnosis result in the elevator 20 by remote inspection.
(K) Recently, there is no modulation in the elevator 20.
(L) The elevator 20 has not been repaired recently.
(M) The elevator 20 has not recently transmitted a failure signal with the same failure code “0001”.
(N) The building 10 is not a building with many false signal transmissions.

If all the requirements (g) to (n) are satisfied, the information processing apparatus 360 determines YES in step S104 shown in FIG. 5, and starts remote recovery in the remote monitoring center 310 in step S105. Notice. This signal is displayed on the display 331 of the remote monitoring center 310. As a result, the supervisor 334 of the remote monitoring center 310 is notified that the remote recovery of the elevator 20 is started.

When the information processing apparatus 360 notifies the remote monitoring center 310 of the start of remote recovery in step S105, the information processing apparatus 360 proceeds to step S106 shown in FIG. 5 and selects a recovery instruction and a recovery diagnosis instruction corresponding to the failure code “0001”. As described above with reference to FIG. 4, the recovery diagnosis database 380 is a database in which the recovery factor instruction data and the recovery rate are linked to the failure factor-specific data 378. Hereinafter, the data configuration of the recovery diagnosis database 380 when the failure code is “0001” indicating a failure relating to the doors 13 and 26 will be briefly described again. When the door sill is clogged (Failure factor 1), the restoration diagnosis data is “door circuit reset + door high-torque opening / closing” as the restoration command, and “door opening / closing” as the restoration diagnosis command. This is a data structure in which a recovery diagnosis command set A, which is a set of two commands “diagnosis”, and a recovery rate x% by a recovery operation by this recovery command are linked. Similarly, when the contact failure of the door opening / closing device switch is the cause (failure factor 2), the restoration diagnosis data is “door circuit reset + door opening / retry retry” as the restoration command in the number of failure cause 2 data, restoration diagnosis. The data structure is such that a recovery diagnosis command set B, which is a set of two commands of “door opening / closing diagnosis”, and a recovery rate y% of the recovery operation by this recovery command are linked as commands. Similarly, in the case of failure factor 3, the restoration diagnosis data has a data configuration in which the restoration diagnosis command set C and the restoration rate z% are linked to the number of cases of failure factor 3. Further, as described above, the recovery rate y% is larger than the recovery rates x% and z%, and the recovery diagnosis command set B has a recovery rate higher than that of the recovery diagnosis command set A and the recovery diagnosis command set C. It is high.

The information processing apparatus 360 may select, as a recovery command, a command corresponding to the failure factor having the largest number of cases among the plurality of failure factors corresponding to the failure code “0001”. Further, the information processing apparatus 360 may select a command having the highest recovery rate among a plurality of commands corresponding to the failure code “0001” as a recovery command. Then, the information processing device 360 selects a restoration diagnosis command set that is set together with the restoration command selected by the restoration diagnosis command corresponding to the selected restoration command.

First, a case will be described in which the information processing apparatus 360 selects a command corresponding to a failure factor having the largest number of cases among a plurality of failure factors corresponding to the failure code “0001” as a recovery command. The information processing apparatus 360 refers to the recovery diagnosis database 380 and confirms the failure factor having the largest number of cases when the failure code is “0001” as the recovery instruction. Then, the information processing apparatus 360 performs a restoration operation for executing a restoration operation corresponding to the garbage clogging of the door sill (fault factor 1) which is the most frequent failure factor, “door circuit reset + door high torque opening / closing”, A restoration diagnosis command set A including two “door opening / closing diagnosis” which is a restoration diagnosis command for executing a restoration diagnosis operation corresponding to the result of the restoration operation is selected.

Next, a case where the information processing apparatus 360 selects a command having the highest recovery rate among a plurality of commands corresponding to the failure code “0001” as a recovery command will be described. The information processing apparatus 360 refers to the recovery diagnosis database 380 and confirms the recovery rate with the highest recovery rate corresponding to the failure code “0001” as the recovery command. Then, the information processing apparatus 360 performs a restoration command for executing a restoration operation corresponding to the factor (failure factor 2) caused by the contact failure of the switch having the highest restoration rate y%, “door circuit reset + door opening / closing retry”, A restoration diagnosis command set B including two “door opening / closing diagnosis” which is a restoration diagnosis command for executing a restoration diagnosis operation corresponding to the result of the restoration operation is selected.

When selecting a recovery diagnosis command set, the selection of whether to be based on the most frequent failure factor corresponding to the failure code “0001” or based on the recovery rate of the recovery diagnosis command set corresponding to the failure code “0001” is as follows: You may do as follows. For example, of the ratio of the maximum number of cases to the next number of cases (number of cases ratio) and the ratio of the maximum recovery rate and the next recovery rate (recovery rate ratio), You may select the one where the maximum value protrudes. Further, for example, if the previous remote recovery has failed, a different selection method may be used. Further, the selection of the restoration diagnosis command set may be determined by, for example, the model and specification of the elevator 20.

In the following description, a case will be described in which the information processing apparatus 360 selects the restoration diagnosis instruction set A based on the failure factor 1 having the largest number corresponding to the failure code “0001”.

When the restoration diagnosis command set A is selected in step S106 of FIG. 5, the information processing apparatus 360 transmits the selected restoration diagnosis command set A from the communication device 320 as shown in step S107 of FIGS. 2 and 5, when receiving the recovery diagnosis command set A from the communication device 320, the communication device 250 outputs the recovery command and the recovery diagnosis command to the control panel 210.

First, as shown in step S109 of FIG. 5, the control panel 210 determines that the elevator 20 is stopped, the weight sensor of the cage 22, the camera in the cage 22, the output of the person sensor in the cage 22, etc. Make sure there are no passengers inside. When the control panel 210 confirms that the elevator 20 is stopped and that there are no passengers in the basket 22, the control panel 210 "starts remote recovery from now on" from the speaker of the communication device installed in the basket 22. The elevator door will open and close. "

When the announcement is completed, the control panel 210 proceeds to step S110 in FIG. 5 and executes a recovery operation according to the recovery command. Since the received restoration command is “door circuit reset + door high torque opening / closing” which is a restoration command for executing a restoration operation corresponding to the garbage clogging of the door sill (fault factor 1), the control panel 210 First, the door circuit of the control panel 210 is reset. This operation resets the state in which the door circuit cannot open or close the door 13 or the door 26 and detects the open (or closed) state or the half-open (or half-closed) state, and opens or closes the door 13 or the door 26. This is a possible operation. Next, the control panel 210 increases the torque of the drive motor of the door 13 and the door 26 by 20 to 30% than usual, and opens and closes the door 13 and the door 26 with a force larger than usual. This operation is an operation in which the garbage stuck in the door sill is moved from the sill and the opening / closing operation of the doors 13 and 26 is restored to the normal state. As shown in step S111 of FIG. 5, the control panel 210 restores the garbage stuck in the thresholds of the doors 13 and 26 to check whether the doors 13 and 26 have been opened and closed. “Door open / close diagnosis” which is a diagnosis command is executed. The control panel 210 opens and closes the door 13 and the door 26 with a normal torque, and can the opening and closing operation be performed within a predetermined opening / closing time, or whether the current of the drive motor for the door 13 and the door 26 is larger than usual. Confirm. Next, the control panel 210 opens and closes the door 13 and the door 26 by reducing the torque of the drive motor by about 20% from the normal state, and checks whether there is any abnormality in the opening and closing time.

When the control panel 210 determines that the doors 13 and 26 are restored to the normal state by the restoration diagnosis operation as shown in step S112 of FIG. 5, the control panel 210 proceeds to step S113 of FIG. In step S113, the control panel 210 outputs a determination result signal that the elevator 20 has been restored. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S <b> 114 of FIG. 6, and the determination result is input to the information processing device 360. The determination result is notified from the information processing apparatus 360 to the remote monitoring center 310 as shown in step S115 of FIG. 6, and the result is displayed on the display 331 of the remote monitoring center 310. When the monitor 334 of the remote monitoring center 310 confirms this display, as shown in step S116 of FIG. 6, the operation of the elevator 20 is resumed and an announcement operation is performed. Further, the information processing apparatus 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in steps S117 and S118 of FIG.

On the other hand, if the control panel 210 determines NO in step S112 of FIG. 5 as a result of the recovery diagnosis operation, the control panel 210 proceeds to step S119 of FIG. In step S119, the control panel 210 outputs a determination result signal indicating that the restoration of the elevator 20 has failed. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S120 of FIG. 6, and the determination result is input to the information processing device 360. Further, the determination result is notified from the information processing apparatus 360 to the remote monitoring center 310 as shown in step S121 of FIG. 6, and the result is displayed on the display 331 of the remote monitoring center 310. After confirming this display, the supervisor 334 causes the elevator 20 to stop operating and announce as shown in step S122 of FIG. In addition, the supervisor 334 instructs the service center 340 near the building 10 to dispatch the engineer 350 to the building 10 by the telephone 333 as shown in step S123 of FIGS. Further, the information processing apparatus 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in steps S117 and S118 of FIG.

The information processing apparatus 360 updates the maintenance database 370 as follows, when the determination signal that the elevator 20 has been restored as shown in step S113 of FIG. 5 is input.

When a determination signal indicating that the elevator 20 has been recovered as shown in step S113 of FIG. 5 is input, the information processing apparatus 360 displays “remote recovery” in the recovery method item of the failure history data 377, and the recovery determination result. Store “Recovery” in the item. As described above, when the communication device 320 receives the failure signal, the information processing device 360 maintains the failure code “0001” input from the communication device 320, the management number of the elevator 20, and the failure occurrence date and time. The failure history data 377 of the database 370 is stored. Accordingly, all items of the failure history data 377 are updated by storing the current recovery method and the recovery determination result.

Further, in this remote recovery, the information processing apparatus 360 refers to the recovery diagnosis database 380 and clogs the door sill that is the most frequent failure factor (failure factor 1) when the failure code is “0001” as the recovery command. 2) of “door circuit reset + door open / retry retry” that is a recovery command for executing a recovery operation corresponding to (2)) and “door open / close diagnosis” that is a recovery diagnostic command for executing a recovery diagnostic operation corresponding to the result of this recovery operation. A recovery diagnosis command set A consisting of two is selected and a recovery operation and a recovery diagnosis operation are executed. Accordingly, when the elevator 20 is successfully restored, the number of failure codes “0001” and failure factor 1 (garbage clogs on the door sill) in the restoration diagnosis database 380 is increased by one, and the restoration rate corresponding to the number of successful restorations. To increase. Further, the information processing device 360 increases the number of failure factors 1 of the failure code “0001” in the failure factor-specific data 378 by one.

On the other hand, the information processing device 360 updates the maintenance database 370 and the restoration diagnosis database 380 as follows when the determination signal indicating that the restoration of the elevator 20 has failed as shown in step S119 of FIG. 5 is input. When a determination signal indicating that the restoration of the elevator 20 has failed as shown in step S119 of FIG. 5 is input, the information processing apparatus 360 displays “remote recovery” in the recovery method item of the failure history data 377, and a recovery determination. Store “failure” in the result item. Further, the number of cases of failure code “0001” and failure factor 1 (garbage on the door sill) in the restoration diagnosis database 380 is left as it is, and the restoration rate is lowered by the amount of restoration failure. Note that if the recovery fails, the number of failure factors 1 of the failure code “0001” in the failure factor-specific data 378 is not changed.

In the above description, a case has been described in which the information processing apparatus 360 selects the restoration diagnosis instruction set A based on the most frequent failure factor corresponding to the failure code “0001”. When the information processing device 360 selects the recovery diagnosis command set B based on the recovery rate of the recovery diagnosis command set corresponding to the failure code “0001”, the normal operation is performed instead of the recovery operation of “door high torque opening / closing”. A difference is that a recovery operation of “door opening / closing retry” in which the opening / closing operation of the doors 13 and 26 is performed again by torque is performed. Other operations are the same as when the restoration diagnosis command set A is selected.

When remote restoration of the elevator 20 is successful, the number of door clogging (failure factor 1), which was the most frequent failure factor in the case of the failure code “0001”, increases. For this reason, when the remote recovery system 100 selects a recovery diagnosis command set based on the most frequent failure factor corresponding to the failure code “0001”, the failure code “0001” is input at the time of the next remote recovery. At this time, the information processing apparatus 360 selects the restoration diagnosis command set A again. When the recovery rate of the recovery diagnosis command set A is higher than the recovery rate of the recovery diagnosis command set B, the information processing apparatus 360 has a recovery rate of a plurality of commands corresponding to the failure code “0001”. Even when the highest command is selected as the return command, the restoration diagnosis command set A is selected.

On the other hand, when the remote recovery of the elevator 20 fails, the number of failure factors 1 of the failure code “0001” in the failure factor-specific data 378 is not changed, but the recovery rate of the recovery diagnosis command set A is lowered. Thereby, the recovery rate of the recovery diagnosis command set B becomes relatively high. That is, the recovery rate ratio of the recovery diagnosis command set B to the recovery diagnosis command set A is increased. When the restoration rate ratio becomes larger than the number ratio calculated as the ratio of the number of failure factors 1 to the number of failures 2, the information processing apparatus 360 recovers among the plurality of commands corresponding to the failure code “0001”. The command with the highest rate is selected as the return command. For this reason, the information processing apparatus 360 selects the restoration diagnosis command set B having the highest restoration rate when the failure code “0001” is input at the time of the next remote restoration. Further, when the information processing device 360 does not select the restoration diagnosis command set A that has failed to be restored in the previous remote restoration, the failure factor 1 is linked to the failure factor 2 having the largest number corresponding to the failure code “0001”. Restored diagnosis command set B is selected.

Further, when the information processing apparatus 360 selects the restoration diagnosis command set B having the highest restoration rate among the plurality of instructions corresponding to the failure code “0001” and succeeds in the restoration of the elevator 20, the restoration diagnosis instruction set The recovery rate of B increases. Therefore, in the next remote recovery, the information processing apparatus 360 selects the recovery diagnosis command set B as in the previous time. On the other hand, if the restoration diagnosis command set B fails to restore the elevator 20, the restoration rate of the restoration diagnosis command set B is lowered. When the recovery rate of the recovery diagnosis command set B is lower than the recovery rate of the recovery diagnosis command set A, the information processing device 360 selects the recovery diagnosis command set A. If the information processing device 360 does not select the recovery diagnosis command set B that has failed to recover in the previous remote recovery, the recovery diagnosis with the high recovery rate corresponding to the failure code “0001” next to the recovery diagnosis command set B Select command set A.

Thus, the remote recovery system 100 increases the number of failure factors and the recovery rate of the selected recovery diagnosis command set when the remote recovery is successful. In addition, if the remote recovery system 100 fails, the remote recovery system 100 reduces the recovery rate of the selected recovery diagnosis command set without changing the number of failure factors. For this reason, if the remote recovery is successful, there is a high possibility that the recovery diagnosis command set selected in the remote recovery is selected in the next remote recovery. Further, if the remote recovery fails, the possibility that the recovery diagnosis command set selected by the remote recovery is selected at the next remote recovery is reduced. For this reason, as the number of remote restorations increases, the information processing apparatus 360 can select a restoration diagnosis command set having a high possibility of restoration corresponding to the failure code from the restoration diagnosis database 380, and the restoration of the elevator 20 is ensured. Can be improved.

In the embodiment described above, the operation of the remote recovery system 100 when the failure code “0001” indicating that the door 13 or 26 is a failure is output from the control panel 210 has been described. Next, a case where a failure code “0002” indicating a failure related to the control circuit is output from the control panel 210 will be described. The description of the same operation as when the failure code “0001” is output is omitted.

If the failure code is “0002” indicating a failure related to the control circuit, the engineer 350 inspected the site to find out that the cause of the output of the failure code “0002” is defective in the relay attached to the control panel 210. This is a case (failure factor 4), a case where there is a defect in the relay drive circuit that drives the relay (failure factor 5), or another failure factor 6. The failure factor-specific data 378 indicates that when the failure code is “0002”, there are 100 cases where the failure is caused by a failure (failure factor 4), 50 cases where the failure of the relay drive circuit is caused (failure factor 5), etc. The data structure is such that there are 10 cases of failure factor 6 and the data is arranged in descending order. As described above, in the case of recovery by the remote recovery system 100, when the elevator 20 is successfully recovered by the recovery command, the number of failure factors corresponding to the failure code that is the basis of the recovery command is the overall failure factor. It is added to the number of cases.

As shown in FIG. 7, the restoration diagnosis database 380 is a database in which a restoration diagnosis instruction set and a restoration rate are linked to the failure factor-specific data 378. Hereinafter, the data configuration of the recovery diagnosis database 380 when the failure code is “0002” indicating a failure related to the control circuit will be described. When there is a fault in the relay (Failure factor 4), the restoration diagnosis data is “control circuit reset + low speed up / down operation” as the restoration command in the number data of the failure factor 4 and “each floor operation, high speed” as the restoration diagnosis command. This is a data configuration in which a recovery diagnosis command set D, which is a set of two commands “operation diagnosis”, and a recovery rate a% by a recovery operation based on the recovery diagnosis command are linked. If there is a failure in the relay drive circuit (failure factor 5), the restoration diagnosis data is “control circuit reset + operation between the top and bottom floors” as the restoration command, and the restoration command “ The data structure is obtained by linking a recovery diagnosis command set E, which is a set of two commands, “operation on each floor and high-speed operation diagnosis”, and a recovery rate b% by a recovery operation based on the recovery diagnosis command. Similarly, in the case of the failure factor 6, the recovery diagnosis data has a data structure in which the recovery diagnosis command set F and the recovery rate c% are linked to the number data of the failure factor 6. As described above, the recovery diagnosis database 380 includes the failure code, the failure factor corresponding to the failure code, the number of the failure factors, the recovery diagnosis command set that is a set of the recovery command and the recovery diagnosis, and the recovery rate. It is stored in the database in association. Note that the recovery rate is the highest in b% of the recovery diagnosis command set E.

When the failure code is “0002”, the information processing device 360 selects the restoration diagnosis instruction set D based on the failure factor having the largest number of cases corresponding to the failure code “0002”. 360 transmits a restoration diagnosis command set D to the control panel 210. After executing the control circuit reset operation, the control panel 210 performs low-speed up and down operations that raise and lower the cage 22 of the elevator 20 at low speed. After that, the control panel 210 performs each floor operation that stops on each floor without opening and closing the doors 13 and 26, high speed operation that operates between a plurality of floors at high speed, operation that stops on each floor, and high speed operation Check for any abnormal driving. When there is no abnormality in each floor operation and high-speed operation, the control panel 210 outputs a determination result of successful restoration of the elevator 20. In addition, when an abnormality is detected in each floor operation or high-speed operation, the control panel 210 outputs a determination result of failure in restoration of the elevator 20. This determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. As described above, the information processing apparatus 360 may select failure history data 377, failure factor-specific data 378, recovery diagnosis so that a recovery diagnosis command set having a higher recovery possibility can be selected based on the determination result. The database 380 is updated.

In addition, when the information processing apparatus 360 selects the recovery diagnosis command set E having the highest recovery rate corresponding to the failure code “0002”, the information processing apparatus 360 transmits the recovery diagnosis instruction set E to the control panel 210. After executing the control circuit reset operation, the control panel 210 executes the operation between the lowermost floor and the uppermost floor for moving the basket 22 of the elevator 20 between the lowermost floor and the uppermost floor. Next, the control panel 210 executes each floor operation and high-speed operation described above, performs restoration diagnosis of the elevator 20, and outputs a determination result of whether the restoration of the elevator 20 has succeeded or failed. As described above, the determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing device 360 updates the failure history data 377, the failure factor-specific data 378, and the recovery diagnosis database 380 so that a recovery diagnosis command set having a higher recovery possibility can be selected based on the determination result.

Next, the case where the failure code is “0003” indicating that the failure is related to the brake will be described.

In the case where the failure code is 0003 indicating a failure related to the brake, the engineer 350 inspected the site on the spot. As a result, the failure code “0003” is output due to an abnormality in the brake circuit of the control panel 210 (failure factor 7). Or other failure factor 8 or failure factor 9. Therefore, in the case of the failure code “0003”, the failure factor-specific data 378 includes 100 cases in which the brake circuit abnormality is the cause (failure factor 7), 50 cases in the case of failure factor 8, and other failure factors 9 The data structure is such that there are 10 cases, and the data is arranged in descending order. As described above, in the case of recovery by the remote recovery system 100, when the elevator 20 is successfully recovered by the recovery command, the number of failure factors corresponding to the failure code that is the basis of the recovery command is the overall failure factor. It is added to the number of cases.

As shown in FIG. 8, the restoration diagnosis database 380 is a database in which a restoration diagnosis command set and a restoration rate are linked to failure factor-specific data 378. Hereinafter, the data structure of the recovery diagnosis database 380 when the failure code is “0003” indicating a failure related to the brake will be described. When the abnormality of the brake circuit is a factor (failure factor 7), the restoration diagnosis data includes two data, “control circuit reset” as a restoration command and “brake torque diagnosis” as a restoration diagnosis command. The data configuration is such that a recovery diagnosis command set G, which is a set of commands, and a recovery rate d% by a recovery operation based on the recovery diagnosis command are linked. In the case of the failure factor 8 and the failure factor 9, the recovery diagnosis data includes the recovery diagnosis command set H and the recovery rate e%, the recovery diagnosis command set I and the recovery rate f% in the number data of the failure factor 8 and the failure factor 9, respectively. Are linked to each other. As described above, the recovery diagnosis database 380 includes the failure code, the failure factor corresponding to the failure code, the number of the failure factors, the recovery diagnosis command set that is a set of the recovery command and the recovery diagnosis, and the recovery rate. It is stored in the database in association. Note that the recovery rate is highest in e% of the recovery diagnosis command set H.

Next, the operation of the remote recovery system 100 when the control panel 210 detects a failure related to the brake will be described.

When the failure code is “0003”, the information processing device 360 selects the restoration diagnosis command set G based on the failure factor having the largest number of cases corresponding to the failure code “0003” in step S106 in FIG. In this case, the information processing device 360 transmits a restoration diagnosis command set G to the control panel 210.

When the failure code is “0003”, when receiving the restoration diagnosis command set G, the control panel 210 executes a brake torque diagnosis operation in the field confirmation shown in step S109 of FIG. In the brake torque diagnosis operation, the hoisting machine in the driving device 24 is not rotated by a mechanical brake, and a driving force is applied to the hoisting machine to confirm that the hoisting machine does not rotate by the holding force of the brake. Is the action. If there is no abnormality in this operation, the control panel 210 makes an announcement of remote recovery assuming that the site of the elevator 20 can be confirmed in step S109 of FIG. Thereafter, the process proceeds to step S110 in FIG. 5, and the control panel 210 executes a control circuit reset operation.

After that, the control panel 210 executes a brake torque diagnosis operation. When there is no rotation of the hoist due to this operation, the control panel 210 outputs a determination result indicating that the elevator 20 has been successfully restored. Further, when the hoisting machine rotates, the control panel 210 outputs a determination result of failure in restoration of the elevator 20. This determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing device 360 updates the failure history data 377, the failure factor-specific data 378, and the recovery diagnosis database 380 so that a recovery diagnosis command set having a high recovery possibility can be selected based on the determination result.

Further, as described above, the information processing apparatus 360 selects the restoration diagnosis command set H having the highest restoration rate corresponding to the failure code “0003” and causes the control panel 210 to execute the restoration operation and the restoration diagnosis operation. You can also.

If there is an abnormality in the brake torque diagnosis operation, the control panel 210 determines that remote recovery cannot be started, and notifies the remote monitoring center 310 that remote recovery is not possible without executing the remote recovery operation.

As described above, when various failures occur in the elevator 20, the remote recovery system 100 performs a recovery operation and recovery diagnosis on the elevator 20 according to a command from the remote recovery device 300 disposed at a location away from the elevator 20. The operation can be executed to restore the elevator 20. For this reason, when failure occurs in the elevator 20, the elevator 20 can be restored in a short time without dispatching the technician 350 to the site, and the operation service of the elevator 20 can be improved.

In addition, the remote recovery system 100 can select a failure history data 377, failure factor-specific data 378, so that a recovery diagnosis command set having a high possibility of recovery can be selected in the next remote recovery based on the recovery determination result. The recovery diagnosis database 380 is updated. Therefore, as the number of remote restorations increases, the information processing apparatus 360 can select a more appropriate restoration diagnosis command set corresponding to the failure code from the restoration diagnosis database 380. Thereby, the restoration of the elevator 20 can be reliably performed, and the time required for the restoration can be shortened to improve the operation service of the elevator 20.

<Self-lock release processing>
The self-lock cancellation process according to the present embodiment will be described with reference to FIGS. FIG. 9 illustrates a functional block diagram of the elevator remote recovery system 100 according to the present embodiment. The difference from FIG. 2 is that a “self-lock presence / absence determination unit” and a “self-lock release processing operation execution unit” are added to the control panel 210 of the elevator control device 200, and a counter 1001 is added to the elevator control device 200. The point is that a “self-lock release command unit” is added to the information processing apparatus 360. Details of these additional configurations will be described later.

FIG. 10 shows a state in which the car 22 is viewed from the floor 12 side (see FIG. 1) in the configuration of the elevator door device 520 according to the present embodiment. FIG. 11 shows a state in which the floor 12 is viewed from the cage 22 side (the hoistway side) in the same configuration.

As shown in FIGS. 1, 10, and 11, the elevator door device 520 is mounted on the elevator 20 and constitutes a part of the elevator 20. The elevator door device 520 includes a cage door device 530 and a landing door device 550. The opening / closing operation of the cage door plates 531A and 531B of the cage door device 530 is controlled by the elevator control device 200 (the control panel 210 and the communication device 250).

The elevator 20 on which the elevator door device 520 is mounted has an elevator mechanism unit in which the cage 22 (car) moves up and down between the floors 12 (see FIG. 1) in the hoistway 11 (see FIG. 1), and its operation. It is comprised with the elevator control apparatus 200 to control. In the present embodiment, the elevator control device 200 is a device that controls the entire elevator 20, and includes a control function of the elevator door device 520.

The basket 22 has an indoor space in which a user can get in. For example, the cage 22 moves up and down in the hoistway 11 by driving a hoisting machine (see FIG. 1, drive device 24). An opening (not shown) that forms an entrance / exit is formed on a wall surface that faces the floor 12 that is a platform for the cage 22. The cage 22 is provided with a cage door device 530 including two cage door plates 531A and 531B that open and close the opening. Here, the entrance / exit is an doorway formed between the car 22 and the floor 12 when the car 22 is stopped on the floor 12.

Hanger plates 532 are attached to the upper ends of the cage door plates 531A and 531B. A door shoe 534 is attached to the lower ends of the cage door plates 531A and 531B. The cage door plates 531A and 531B are suspended on the door rail 535 by the hanger roller 533 of the hanger plate 532, and the door shoe 534 is fitted into a sill groove formed in the sill 536, thereby enabling stable sliding movement (opening / closing operation). It has become.

The basket door device 530 further includes an opening / closing device 544 and a vane 537. The opening / closing device 544 includes an inverter 539, a cage door motor 545, a pulley 546, and an arm 547.

The cage door motor 545 is provided on a gantry 513 installed on the upper surface of the cage 22, for example. The driving force of the cage door motor 545 is transmitted to the connecting bar 548 via the pulley 546 and the arm 547, whereby the cage door plates 531A and 531B slide to open and close the opening. The cage door motor 545 is composed of, for example, a three-phase AC synchronous motor, and can rotate forward and backward. The rotation phase of the cage door motor 545 is detected by the motor encoder 549 and transmitted to the elevator control device 200.

The inverter 539 supplies alternating current power to the cage door motor 545 to control forward / reverse rotation of the electric motor. The inverter 539 converts electric power (for example, commercial electric power) supplied from the power source 540 and supplies it to the cage door motor 545. The inverter 539 includes, for example, a converter circuit that converts alternating current into direct current and an inverter circuit that converts direct current into alternating current. The converter circuit and the inverter circuit are provided with a switching element, and the on / off operation of the switching element is controlled by the elevator control device 200. For example, the elevator control device 200 performs on / off control of the switching element of the inverter 539 by PWM control. That is, the car door motor 545 is driven and controlled by the elevator control device 200 via the inverter 539.

The door encoder 543 detects the opening A of the cage door plates 531A and 531B. For example, the door encoder 543 detects the rotational phase of the hanger roller 533, and obtains the opening A of the cage door plate 531B based on this. Further, since the cage door plates 531A and 531B move in conjunction with each other, the opening A of the cage door plate 531B can also be applied as the opening A of the cage door plate 531A. The detected opening A is transmitted to the elevator control device 200.

The vane 537 is a biasing member that biases the roller 562 (see FIG. 11) of the lock device 559 in the opening direction. The vane 537 is provided (fixed) on the side of the cage door device 530 that faces the landing door device 550. Specifically, it is provided at a position facing the lock device 559 provided on the hanger plate 552. For example, the vane 537 is fixed to the hanger plate 532. As the car door motor 545 is driven, the hanger plate 532 and the car door plates 531A and 531B are opened or closed, and the vane 537 is moved accordingly.

The vane 537 is a long plate-like member extending in the up-and-down direction, and protrudes from the hanger plate 532 and the cage door plate 531A toward the landing door plate 551A. Tapered bent portions are provided at both ends of the vane 537 in order to facilitate contact with the lock device 559.

Referring to FIG. 11, the wall surface of floor 12 is formed with an opening that forms a boarding gate, and landing door device 550 includes two landing door plates 551A and 551B that open and close the opening. .

As with the cage door plates 531A and 531B, the landing door plates 551A and 551B have hanger plates 552 attached to the upper ends thereof, and are suspended on the door rails 555 by the hanger rollers 553 of the hanger plates 552. A door shoe 554 that fits into a sill groove of the sill 556 is attached to the lower ends of the landing door plates 551A and 551B.

Above the landing door plates 551A and 551B, an interlocking mechanism including a belt 558 wound around two pulleys 557 provided on the left and right sides and connected to a hanger plate 552 is provided. By this interlocking mechanism, the opening / closing driving force applied to one landing door plate 551A having the locking device 559 is transmitted to the other landing door plate 551B, and the two landing door plates 551A and 551B are slid in opposite directions. Let

The landing door device 550 includes a lock device 559. The lock device 559 is provided on the side of the landing door device 550 that faces the cage door device 530. Specifically, it is provided at a position substantially opposite to the vane 537.

FIG. 12 illustrates a lock device 559. The lock device 559 includes a movable engagement member 559A and a fixed engagement member 559B. The fixed engagement member 559B is fixed to the wall surface in the hoistway 11, and is provided, for example, below the door rail 555. The fixed engagement member 559B includes a fixed hook 564 and a landing door switch 560B.

The fixed hook 564 extends substantially parallel to the opening / closing direction of the landing door plates 551A and 551B. The distal end of the fixed hook 564 is, for example, a substantially U-shaped hook member bent upward in the drawing, and can engage with the movable hook 563 of the movable engagement member 559A. A landing door switch 560B is installed on the fixed hook 564.

The movable engagement member 559A includes a movable hook 563 and a roller 562. The movable hook 563 and the fulcrum 561 of the roller 562 are fixed to the hanger plate 552 above the landing door plate 551A. The movable hook 563 and the roller 562 are rotated around the fulcrum 561 as the rotation center. Further, due to this rotation (pivoting), the movable hook 563 is engaged with the fixed hook 564 of the fixed engagement member 559B (left side in FIG. 13) and the open position separated from the fixed hook 564 (right side in FIG. 13). ) And can be moved. For example, when the roller 562 is biased in the opening direction (right side direction in FIG. 13), the movable hook 563 is also biased in the opening direction.

As shown in FIG. 12, when the movable hook 563 is engaged with the fixed hook 564, the movable hook 563 and the roller 562 are projected so that the roller 562 protrudes from the fulcrum 561 toward the fixed hook 564. The angle is set. The movable hook 563 is always urged to the fixed hook 564 side (the lower side in the drawing) by an elastic member 565 such as a spring. As a result, the entire movable engagement member 559A is constantly urged toward the fixed hook 564 (downward on the paper surface).

Also, a landing door switch 560A is extended in the longitudinal direction of the movable hook 563. As shown in FIG. 12, when the locking device 559 is in the engaged state, the landing door switches 560A and 560B come into contact and enter a conductive state (on state). This conduction signal (ON signal) is transmitted to the elevator control device 200. Upon receiving the ON signal, the elevator control device 200 determines that the landing door plates 551A and 551B are in the closed state.

When the lock device 559 is in the engaged state illustrated in FIG. 12, that is, when the movable engagement member 559A (the movable hook 563) and the fixed engagement member 559B (the fixed hook 564) are in the engaged state. The movement of the landing door plate 551A is locked. Since the landing door plate 551A is locked, the driving force is not transmitted to the interlocking mechanism, and the landing door plate 551B is also immovable. In order to prevent opening of the entrance / exit, this locked state is maintained when there is no landing of the basket 22.

FIG. 13 shows an example in which the locking device 559 is normally engaged (left side in FIG. 13) / released (right side in FIG. 13). When the cage 22 has landed on the floor 12, that is, when the cage door device 530 has landed on the floor of the landing door device 550, the vane 537 and the roller 562 of the movable engagement member 559A and a predetermined predetermined position as shown on the left side of FIG. Adjacent to each other with a gap. Next, when the car door motor 545 of the car door device 530 is driven and the car door plates 531A and 531B are moved to open, the vane 537 is also moved in the door opening direction (door opening direction). Further, the vane 537 urges the roller 562 in the door opening direction (door opening direction) as shown on the right side of FIG. In other words, the vane 537 biases the movable engagement member 559A in the release direction from the engagement position (left side in FIG. 13) to the release position (right side in FIG. 13). As a result, the movable hook 563 jumps up around the fulcrum 561 against the urging force of the elastic member 565 and separates from the fixed engagement member 559B. As a result, the lock device 559 is opened. Thereafter, the cage door plates 531A and 531B and the landing door plates 551A and 551B move in the door opening direction (door opening direction) in conjunction with each other.

FIG. 14 illustrates a so-called self-lock state. Self-locking means that the engagement between the movable engagement member 559A and the fixed engagement member 559B is not released even though the roller 562 of the movable engagement member 559A is urged in the opening direction by the vane 537 (the urging member). Refers to the state.

When the movable engagement member 559A and the fixed engagement member 559B are in an engaged state, that is, when the fixed hook 564 and the movable hook 563 are in an engaged state, the engagement between both the hooks is determined to be strong. It becomes difficult to open. For example, a foreign object enters the threshold 556 (see FIG. 11) and is sandwiched between the landing door plates 551A and 551B, that is, a slight gap is generated between the landing door plates 551A and 551B, and the movable hook 563 is engaged with the fixed hook 564. For example, the hooks can be firmly engaged with each other.

In such a case, by simply moving the landing door plate 551A in the door opening direction (door opening direction) and pressing (biasing) the vane against the roller 562 in such a case, the roller 562 is moved in the opening direction. It may be difficult to move. In particular, as shown in FIG. 14, when the movable hook 563 and the fixed hook 564 are engaged with each other in a slightly floating state, and the landing door switches 560A and 560B are in a disconnected state (off state), the elevator control device 200 is connected to the landing door. It is determined that the plate 551A is in an open state, and the raising / lowering of the basket 22 is prohibited. In other words, the cage door plates 531A and 531B and the landing door plates 551A and 551B are not opened on the side of the cage 22, and cannot be avoided to other floors, so that there is a risk of so-called confinement.

Therefore, when such a self-lock occurs, the elevator control device 200 according to the present embodiment executes a self-lock cancellation processing operation for eliminating the self-lock.

As illustrated in FIG. 15, the self-lock release processing operation intermittently applies an impact in the opening direction to the roller 562 (movable engagement member 559A) by the vane 537 (biasing member), and gradually moves the movable hook 563. It is an operation that lifts it up in the opening direction. In the operation, the vane 537 is repeatedly moved in small increments in the door opening direction and the door closing direction as shown in FIG. In order to perform this repetitive movement, the elevator control device 200 causes the car door motor 545 to repeat the opening / closing operation.

FIG. 16 illustrates a self-lock presence / absence determination flow by the elevator control device 200. In order to make the flow of FIG. 16 executable, resources such as a CPU and a memory of the elevator control device 200 are allocated and a self-lock presence / absence determining unit is generated as shown in FIGS.

FIG. 20 illustrates time charts of various devices from the self-lock determination flow to the self-lock release (recovery). Specifically, in order from the top, the opening control command by the elevator control device 200, the closing command, the motor rotation phase by the motor encoder 549, the door opening A by the door encoder 543, and the signals of the landing door switches 560A and 560B are It is illustrated in the series. The horizontal axis represents time, and each signal is synchronized on the time axis. The signal history of these various devices is stored as operation history data 379 of the maintenance database 370.

The self-lock presence / absence determination flow is started when the landing switch (not shown) of the basket 22 is switched from the off state (not landing) to the on state (landing). The elevator control device 200 outputs a door opening command (door opening command), and drives the car door motor 545 in the door opening direction via the inverter 539 (S1002, time t2 in FIG. 20).

Next, the elevator control device 200 determines whether or not the landing door switches 560A and 560B are switched from on (closed) to off (open) (S1004). If it is not switched, the landing door plates 551A and 551B may not be opened due to the self-locking of the locking device 559. At this time, the elevator control device 200 changes the stop floor and attempts to open the lock device 559 on the stop floor (S1006).

When the landing door switches 560A and 560B are switched from the ON state to the OFF state in step S1004 (time t3 in FIG. 20), that is, after the switching from the closing detection signal to the opening detection signal (time t3), the elevator control is performed after a predetermined period. The apparatus 200 acquires the opening degree A of the door encoder 543. Further, it is determined whether or not the acquired opening degree A is equal to or greater than a predetermined threshold opening degree A_th (first gate) (S1008).

When the opening degree A is equal to or greater than the predetermined threshold opening degree A_th, the flow is finished as it is, assuming that the lock device 559 is normally opened. On the other hand, when the opening degree A is less than the predetermined threshold opening degree A_th, the landing door plates 551A and 551B are not opened although the door opening determination is made by the landing door switches 560A and 560B. May lead to Therefore, the elevator control device 200 determines that self-lock has occurred and transmits a failure signal to the remote recovery device 300 (S1010). For example, the elevator control device 200 transmits a failure signal including a failure code “1012” indicating a door failure to the remote recovery device. Further, the elevator control device 200 temporarily interrupts the output (ON output) of the door opening command and the door closing command (time t4 to t5 in FIG. 20). Alternatively, a door closing command is output.

FIG. 17 illustrates a flowchart showing the operation of the remote recovery system for an elevator failure by the information processing device 360 in the remote recovery device 300. The difference from FIG. 5 is that step S1012 is inserted between step S104 and step S105, and a reference number 4 for shifting from the step S1012 to the flow of FIG. 18 is added. Since the other steps have already been described in the above description, description thereof will be omitted as appropriate.

If it is determined in step S104 that the failure based on the received failure signal is capable of remote recovery operation, the information processing device 360 refers to the failure code of the failure signal and refers to the failure code corresponding to the door failure. It is determined whether or not “1012” (S1012). If the failure code is different from “1012”, the information processing apparatus 360 proceeds to the next step S105.

When the failure code is “1012”, as shown in FIG. 18, the information processing apparatus 360 uses the elevator specification data 371 in the maintenance database 370 to determine the door weight of the elevator 20 that sent the failure signal (the total of the car door plates 531A and 531B). Weight) is acquired (S1014). Next, the information processing device 360 obtains the slip period [Sec] corresponding to the acquired door weight. The slack cycle [Sec] indicates a repetitive cycle of forward / reverse rotation driving (opening / closing operation) of the cage door motor 545.

The shorter the cycle, the more the vane 537 will impact the roller 562 in small increments, and the self-locking can be eliminated early. However, if the cycle is excessively short, the cage door plates 531A and 531B are There is a possibility that the forward / backward movement (opening and closing movement) of the vane 537 may be delayed without being able to follow. Therefore, the information processing apparatus 360 obtains a slip period suitable for the weight of the cage door plates 531A and 531B of the elevator 20 that is the source of the failure signal.

Specifically, the information processing apparatus 360 refers to the recovery diagnosis database 380 and confirms the details of the failure code “0012” (door failure) as shown in FIG. FIG. 19 shows the total number and the recovery rate of the failure code “0012”, the number and the recovery rate of the failure factor 1 (self-lock), and the number and the recovery rate of each recovery diagnosis command set.

The information processing apparatus 360 searches the restoration diagnosis instruction set for door weights corresponding to the cage door plates 531A and 531B of the elevator 20 that is the failure signal source. For example, when the total weight of the cage door plates 531A and 531B is α1, the restoration diagnosis command sets A-1-1 and A-1-2 are selected.

Further, the information processing device 360 selects the one with the highest recovery rate from the selected recovery diagnosis command set (S1016). For example, the restoration diagnosis command set A-1-1 with the restoration rate a1% is selected.

Next, the information processing device 360 commands the elevator control device 200 to execute the self-lock release processing operation (S1018). At this time, β1 [Sec] of the restoration diagnosis command set A-1-1 is designated as the slack cycle.

A self-lock release processing operation execution unit (hereinafter simply referred to as an elevator control device as appropriate) of the elevator control device 200 receives a command from the information processing device 360 and measures a duration of the self-lock release processing operation 1001 ( 9) is reset, and the time is measured from 0 [Sec] (S1020). Further, a self-lock release processing operation for driving the cage door motor 545 in the forward / reverse direction is performed at the slack cycle β1 [Sec] (S1022, time t5 in FIG. 20).

In addition, since vibration is applied to the cage 22 during the self-lock release processing operation, the self-lock release processing operation is executed for the passengers in the cage 22 and the waiting person on the floor 12 before the self-lock release processing operation. You may go through. For example, a message indicating that the unlocking operation is to be performed is displayed on a display device such as a display, or the message is output by voice.

Whether or not the vane 537 hits the roller 562 during the self-lock release processing operation can be detected (determined) when, for example, the detection values of the motor encoder 549 and the door encoder 543 are constant (flat) during the door opening operation. (Time t5 to t6 in FIG. 20).

Furthermore, the elevator control device 200 acquires the opening A from the door encoder 543 during the self-lock release processing operation, and determines whether or not the opening A exceeds a predetermined threshold opening A_th (S1024). When the opening A is less than the threshold opening A_th, the elevator control device 200 refers to the measurement time tc of the counter 1001 and determines whether or not this exceeds the threshold time tc_th (S1026). If the measurement time tc is less than or equal to the threshold time tc_th, the self-lock release processing operation is continued.

If the measurement time tc exceeds the threshold time tc_th, it is determined that the self-lock release has failed, and the elevator control device 200 proceeds to step S113. Step S113 is the same as the step in FIG.

Returning to step S1024, an impact is intermittently applied to the roller 562 by the vane 537, whereby the movable hook 563 rises and is released from the fixed hook 564. Along with this, the opening degree of the door encoder 543 increases (after time t7 in FIG. 20).

When the opening degree A of the door encoder 543 reaches the threshold opening degree A_th or more (time t8 in FIG. 20), the elevator control device 200 performs the restoration diagnosis operation (S111) and the restoration decision (S112) on the assumption that the self-lock is released. Execute. Since these steps are the same as those in FIG. 5, the description thereof is omitted here.

When it is determined that the recovery has failed in the recovery determination (S112), the determination result of the recovery failure is transmitted from the elevator control device 200 to the remote recovery device 300 (S113). When it is determined that the recovery is successful in the recovery determination, the determination result of the recovery success is transmitted from the elevator control device 200 to the remote recovery device 300 (S119). Thereafter, the process proceeds to the flow of FIG.

In the above-described embodiment, the self-lock canceling process is executed by the cooperation of the elevator control device 200 and the remote recovery device 300. However, the present invention is not limited to this mode, and the elevator control device 200 alone cancels the self-lock. Processing may be executed.

FIG. 21 illustrates a flowchart of self-lock release processing by the elevator control device 200 alone. Steps denoted by the same reference numerals as those in FIG. 16 and FIG. 18 have the same contents and will not be described here. However, the execution subject of steps S111, S112, S113, and S119 is the elevator control device 200. In step S1030, the self-lock release processing operation is executed at a predetermined period based on the door weight (the total weight of the cage door plates 531A and 531B).

Further, in the above-described embodiment, the on / off determination of the landing door switches 560A and 560B is performed in step S1004 of FIG. 16 and FIG. 21, and the stop floor is changed (S1006) when it is on (closed). However, it is not limited to this form. For example, steps S1004 and S1006 may be omitted, and it may be determined whether the door opening A after a predetermined period is equal to or greater than the threshold opening A_th (S1008) from the output of the door opening command (S1002). In other words, the car door plates 531A and 531B and the landing door plates 551A and 551B are not fully opened even after a predetermined period of time has elapsed after the opening command, regardless of whether the landing door switches 560A and 560B are on / off. Occurrence determination may be performed.

The present invention is not limited to the embodiments described above, but includes all changes and modifications that do not depart from the technical scope or essence of the present invention defined by the claims. .

10 building, 11 hoistway, 12 floor, 13 door, 20 elevator, 22 basket, 23 wire, 24 drive, 25 weight, 26 door, 27 floor, 30, 35 communication network, 100 remote recovery system, 200 elevator control Device, 210 control panel, 250 communication device, 300 remote recovery device, 310 remote monitoring center, 320 communication device, 330 monitoring panel, 331 display, 332 switch, 333 telephone, 334 monitor, 340 service center, 350 technician, 360 Information processing device, 370 maintenance database, 371 elevator specification data, 372 inspection history data, 373 maintenance work history data, 374 remote inspection history data, 375 modulation history data, 376 repair work history data 377 Failure history data, 378 Failure factor data, 379 Operation history data, 380 Restoration diagnosis database, 513 Mount, 520 Elevator door device, 530 Basket door device, 531A, 531B Basket door plate, 532, 552 hanger plate, 533, 553 hanger Roller, 534, 554 door shoe, 535, 555 door rail, 536, 556 threshold, 537 vane, 539 inverter, 540 power supply, 543 door encoder, 544 opening / closing device, 545 cage door motor, 546 pulley, 547 arm, 548 connecting bar, 549 Motor encoder, 550 landing door device, 551A, 551B landing door plate, 557 pulley, 558 belt, 559 lock device, 559A movable engagement part , 559b fixed engagement member, 560A, 560B landing door switch, 561 the fulcrum, 562 roller, 563 movable hook, 564 fixing hook, 565 elastic member.

Claims (9)

1. A remote recovery system for elevator failure,
   Provided on the side of the landing door device that faces the cage door device and movable to a fixed engagement member, an engagement position that engages with the fixed engagement member, and an open position that is separated from the fixed engagement member A locking device comprising an engaging member;
   The cage door device is provided on the side facing the landing door device and moves together with the cage door plate of the cage door device, and approaches the movable engagement member when the cage door device is landed on the floor of the landing door device. A biasing member that biases the movable engagement member in an opening direction from the engagement position toward the release position in accordance with the opening movement of the basket door plate;
   A cage door motor for opening and closing the cage door plate;
   An elevator control device for controlling the cage door motor;
   A remote recovery device that communicates with the elevator control device and causes the elevator control device to perform a failure recovery operation;
   With
   The elevator control device generates a self-lock in which the engagement between the movable engagement member and the fixed engagement member is not released even though the movable engagement member is urged in the opening direction by the urging member. When a failure signal is detected, a failure signal is sent to the remote recovery device,
   The remote recovery device is:
   When the failure signal is received, the self-lock release that repeats the opening / closing operation of the cage door motor is performed so that the biasing member intermittently applies an impact to the movable engagement member in the opening direction. Causing the elevator control device to perform processing operation;
   Remote recovery system for elevator failure.
2. A remote recovery system for an elevator failure according to claim 1,
   A door encoder that detects the opening of the cage door plate;
   When the opening degree of the cage door plate acquired from the door encoder after a predetermined period from when the door opening command is output to the cage door motor is less than a predetermined threshold opening degree, Elevator failure remote recovery system that determines that a lock has occurred.
3. A remote recovery system for an elevator failure according to claim 2,
   The elevator control device determines that the self-lock is released when the opening degree of the cage door plate acquired from the door encoder is equal to or greater than a predetermined threshold opening degree during the self-lock release processing operation. Fault remote recovery system.
4. The elevator recovery remote recovery system according to any one of claims 1 to 3,
   When the elevator control device receives an opening detection signal from a landing door switch that detects opening of the landing door plate of the landing door device in addition to the detection of the occurrence of the self-lock, the elevator control device sends the failure signal to the remote recovery device. Elevator malfunction remote recovery system to send to.
5. The elevator fault remote recovery system according to any one of claims 1 to 4,
   The remote recovery system for an elevator failure, wherein the remote recovery device determines a repetition period of the opening / closing operation of the cage door motor in the self-lock release processing operation based on the weight of the cage door plate.
6. An elevator failure recovery system,
   Provided on the side of the landing door device that faces the cage door device and movable to a fixed engagement member, an engagement position that engages with the fixed engagement member, and an open position that is separated from the fixed engagement member A locking device comprising an engaging member;
   The cage door device is provided on the side facing the landing door device and moves together with the cage door plate of the cage door device, and approaches the movable engagement member when the cage door device is landed on the floor of the landing door device. A biasing member that biases the movable engagement member in an opening direction from the engagement position toward the release position in accordance with the opening movement of the basket door plate;
   A cage door motor for opening and closing the cage door plate;
   An elevator control device for controlling the cage door motor;
   With
   The elevator control device generates a self-lock in which the engagement between the movable engagement member and the fixed engagement member is not released even though the movable engagement member is urged in the opening direction by the urging member. A self-lock release processing operation in which the cage door motor is repeatedly opened and closed so that the biasing member intermittently applies an impact in the opening direction to the movable engagement member. Execute,
   Elevator failure recovery system.
7. The elevator failure recovery system according to claim 6,
   A door encoder that detects the opening of the cage door plate;
   When the opening degree of the cage door plate acquired from the door encoder after a predetermined period from when the door opening command is output to the cage door motor is less than a predetermined threshold opening degree, Elevator failure recovery system that determines that a lock has occurred.
8. The elevator failure recovery system according to claim 7,
   The elevator control device determines that the self-lock is released when the opening degree of the cage door plate acquired from the door encoder is equal to or greater than a predetermined threshold opening degree during the self-lock release processing operation. Failure recovery system.
9. The elevator failure recovery system according to any one of claims 6 to 8,
   The elevator control device is an elevator failure recovery system that determines a repetition period of the opening / closing operation of the cage door motor in the self-lock release processing operation based on the weight of the cage door plate.
   

Images