CN110035968B

CN110035968B - Remote recovery system for elevator fault

Info

Publication number: CN110035968B
Application number: CN201680091145.4A
Authority: CN
Inventors: 西山秀树; 田畠广泰; 文屋太阳; 松枝丰
Original assignee: Mitsubishi Electric Corp; Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Corp; Mitsubishi Electric Building Solutions Corp
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2020-10-27
Anticipated expiration: 2036-11-29
Also published as: JPWO2018100604A1; CN110035968A; KR20190083668A; JP6522256B2; WO2018100604A1; KR102162669B1

Abstract

The disclosed device is provided with: an elevator control device (200) which controls the driving of the elevator (20); and a remote recovery device (300) which communicates with the elevator control device (200) and causes the elevator (20) to perform a recovery operation of a failure, wherein when the elevator control device (200) detects a failure of the elevator (20), the remote recovery device (300) transmits a failure signal including a failure code of the elevator (20), and when receiving the failure signal, the remote recovery device transmits a recovery command and a recovery diagnosis command corresponding to the failure code included in the failure signal to the elevator control device (200), and causes the elevator control device (200) to perform the recovery operation and the recovery diagnosis operation of the elevator (20). Thereby improving the operational service of the elevator.

Description

Remote recovery system for elevator fault

Technical Field

The present invention relates to a system for performing remote recovery when an elevator has failed.

Background

Conventionally, there is known an elevator failure recovery support system including: a communication terminal connected to a control panel for controlling the driving of the elevator, and transmitting a fault signal including an error code when the elevator has a fault; and a monitoring center that receives a failure signal transmitted from the communication terminal, retrieves failure history data corresponding to an error code, and transmits the failure history data to a portable terminal held by a maintenance person, wherein the elevator failure recovery support system analyzes the error code received from the monitoring center by the portable terminal held by the maintenance person, and displays the error code as recovery content for each failure cause (see, for example, patent document 1). The failure recovery support system described in patent document 1 can know the failure content of an elevator before a maintenance worker arrives at the elevator having a failure, and can perform recovery work immediately after arriving at a building, thereby enabling efficient recovery work.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2003-104644

Disclosure of Invention

Problems to be solved by the invention

However, in the system described in patent document 1, when the elevator fails, it is necessary for a maintenance person or a technician to move to the site to recover the elevator, and therefore, it takes time until the recovery, which causes a problem that the service of the elevator is reduced. On the other hand, in recent years, there is an increasing demand for improvement in the running service of elevators.

The object of the invention is therefore to improve the operational service of elevators.

Means for solving the problems

The present invention provides a remote recovery system for elevator failure, comprising: an elevator control device for performing drive control of an elevator; and a remote recovery device that communicates with the elevator control device and causes the elevator to perform a recovery operation for a failure, wherein when a failure of the elevator is detected, the elevator control device transmits a failure signal including a failure code of the elevator, and when the remote recovery device receives the failure signal, the remote recovery device transmits a recovery command and a recovery diagnosis command corresponding to the failure code included in the failure signal to the elevator control device, and causes the elevator control device to perform the recovery operation and the recovery diagnosis operation for the elevator.

In the remote recovery system for an elevator failure according to the present invention, the recovery command transmitted by the remote recovery device may be a command corresponding to a failure factor having a large number of failure factors out of a plurality of failure factors corresponding to the failure code, or a command having a high recovery rate, which is a ratio at which the elevator is recovered by the recovery command, out of a plurality of recovery commands corresponding to the failure code, and the recovery diagnosis command may be a command corresponding to the recovery command.

In the remote recovery system for an elevator failure according to the present invention, the recovery command may be a command corresponding to a failure factor having the largest number of failure factors among the plurality of failure factors corresponding to the failure code, or a command having the highest recovery rate, which is a rate at which the elevator is recovered by the recovery command, among the plurality of recovery commands corresponding to the failure code.

In the remote recovery system for an elevator failure according to the present invention, the elevator control device may determine whether or not the elevator has recovered by the recovery diagnosis operation after the recovery operation performed in accordance with the recovery command, and may transmit a determination result to the remote recovery device.

In the remote recovery system for an elevator failure according to the present invention, the remote recovery device may include a recovery diagnosis database in which the failure code, the number of causes of failure corresponding to the failure code, the recovery command, and the recovery diagnosis command are associated with each other, and the number of causes of failure corresponding to the failure code may be updated based on the determination result of whether or not the elevator has recovered, which is transmitted from the elevator control device.

In the remote recovery system for an elevator failure according to the present invention, the recovery diagnosis database may be obtained by associating the failure code, the number of causes of failure corresponding to the failure code, the recovery command, the recovery diagnosis command, and the recovery rate, and the number of causes of failure corresponding to the failure code and the recovery rate may be updated based on the determination result of whether or not the elevator has recovered, which is transmitted from the elevator control device.

Effects of the invention

The invention can realize the improvement of the running service of the elevator.

Drawings

Fig. 1 is a system diagram showing the configuration of a remote recovery system for an elevator failure in an embodiment of the present invention.

Fig. 2 is a functional block diagram of a remote recovery system for elevator failure in an embodiment of the present invention.

Fig. 3 is a diagram showing the structure of the maintenance database shown in fig. 2.

Fig. 4 is a diagram showing the structure of the recovery diagnosis database shown in fig. 2.

Fig. 5 is a flowchart showing the operation of the remote recovery system for an elevator failure in the embodiment of the present invention.

Fig. 6 is a flowchart showing the operation of the remote recovery system for an elevator failure in the embodiment of the present invention.

Fig. 7 is a diagram showing the structure of another recovery diagnosis database.

Fig. 8 is a diagram showing the structure of another recovery diagnosis database.

Detailed Description

Next, the remote recovery system 100 for an elevator failure according to the present embodiment will be described with reference to the drawings. As shown in fig. 1, the remote recovery system 100 includes: an elevator control device 200 that performs drive control of an elevator 20 disposed in a hoistway 11 of a building 10; and a remote recovery device 300 that communicates with the elevator control device 200 and causes the elevator 20 to perform a recovery operation for the failure. One or more elevators 20 that the remote recovery apparatus 300 causes to perform the recovery operation may be provided. In the case where there are a plurality of elevators 20, each elevator 20 may be installed in the same building 10 or may be installed in a different building 10.

The elevator control device 200 includes a control panel 210 for controlling the driving of the elevator 20 and a communication device 250. The control board 210 is a computer including a CPU and a memory therein. Further, the remote restoring apparatus 300 includes a remote monitoring center 310 including a communication apparatus 320 and a monitoring disk 330, an information processing apparatus 360, a maintenance database 370, and a restoration diagnosis database 380. The remote monitoring center 310, the information processing device 360, the maintenance database 370, and the recovery diagnosis database 380 may be installed at the same place, or may be installed at different places, and may be connected to each other via an internet line or the like.

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, communication device 250 receives the instruction for control panel 210 selected by information processing device 360 with reference to recovery diagnosis database 380 via communication device 320 and communication network 30, and outputs the instruction to control panel 210. The communication device 320 receives the 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. Further, the communication device 320 transmits the command to 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 wired communication. The communication network 30 may be the internet or a telephone line network.

The remote monitoring center 310 is provided with a monitoring panel 330, and the monitoring panel 330 transmits and receives data to and from an information processing device 360 to monitor the operation state and the failure state of the elevator 20. A monitor panel 330 is provided with a display 331 and a switch 332, wherein the display 331 displays the operation state, the failure state, the notification from the information processing device 360, and the like of the elevator 20, and the switch 332 operates the display of the display 331. Further, the monitoring board 330 is provided with a telephone 333 that performs communication with the service center 340 via the communication network 35.

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

The information processing device 360 is a computer including a CPU and a memory therein. When a failure occurs in elevator 20, a failure signal output from control panel 210 is input to information processing device 360 via

communication devices

250 and 320 and communication network 30. When a failure signal is input, the information processing device 360 refers to the data in the recovery diagnosis database 380, and selects a recovery instruction and a recovery diagnosis instruction corresponding to a 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 the elevator 20 is caused to perform the restoration operation and the restoration diagnosis operation.

As shown in fig. 2, the maintenance database 370 stores elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, anomaly history data 375, repair construction history data 376, failure history data 377, and data 378 categorized by the cause of failure.

Next, referring to fig. 3, description will be given of data structures of elevator specification data 371, inspection history data 372, maintenance operation history data 373, remote inspection history data 374, anomaly history data 375, repair construction history data 376, failure history data 377, and data 378 categorized by the cause of failure.

The elevator specification data 371 has a data structure for storing data of a management number, a model, a manufacturing date, a manufacturing number, a name of a building to be installed, and a purpose of installing the building of the elevator 20. The use for setting up a building includes, for example, office work, general residence, restaurants, schools, and the like.

Inspection history data 372 has a data structure in which data of the management number of elevator 20, the date and time of inspection by technician 350 on site, the inspection item, and the inspection result are stored. The inspection is, for example, an inspection of the opened and closed states of the

doors

13 and 26 of the elevator 20 shown in fig. 1, an inspection of a stop position of each floor (a point inspection of a height deviation amount between the floor 12 and the floor 27 of the car 22), an inspection of the rope 23, an inspection of a traveling speed, and the like. In addition, whether or not an abnormality is found, maintenance work such as cleaning is required although no abnormality is found, or replacement of parts is required recently, is input in the inspection result. In fig. 1, reference numeral 25 denotes a counterweight.

The maintenance operation history data 373 has a database structure in which the management number of the elevator 20, the date and time of the maintenance operation of the elevator 20 performed by the technician 350 on site, the maintenance operation items, and the maintenance operation results are stored. The maintenance work items include, for example, checking the operating state of the elevator 20, cleaning the door rail of the elevator 20, supplying oil to the drive device 24 shown in fig. 1, and adjusting the brake of the elevator 20. The actual results of the spot inspection, cleaning, oil supply, adjustment, and the like are input to the maintenance work results.

The remote checkup history data 374 has a data structure for storing the management number of the elevator 20, the remote checkup date and time, the remote checkup items, and the remote checkup result. The remote spot 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. The control panel 210 of the elevator 20 moves the car 22 of the elevator 20 shown in fig. 1 to a predetermined floor. During this movement, various sensors mounted on the elevator 20 are used to check whether or not there is an abnormality in the operation performance (presence or absence of acceleration or abnormal sound), door opening/closing, brake, emergency battery, external communication device, and the like. The results of the checkups are stored from the information processing device 360 into the remote checkup history data 374 via the

communication devices

250, 320 and the communication network 30. The remote spot check may be performed in response to an instruction from the remote monitoring center 310.

The anomaly history data 375 has a data structure in which the management number of the elevator 20, the anomaly occurrence date and time, the anomaly item, and the anomaly correspondence result are stored. The abnormal state of the elevator 20 is a case where the result of the inspection, spot inspection, maintenance work, or remote spot inspection performed by the technician 350 does not reach an abnormal value, but changes from a normal value of the elevator 20. For example, if the result of the travel speed check is within the allowable value, but the value is largely different from the previous point check or the value of the check result of the elevator 20 so far, the "travel speed" is recorded in the abnormal item.

The repair construction history data 376 has a data structure in which the management number of the elevator 20, the repair construction date and time, the repair construction item, and the repair construction result are stored. The repair work is a recovery work for replacing parts such as replacement of the cable 23, replacement of the hanger roller, replacement of the brake pad, replacement of the control board, and replacement of the relay. Therefore, the names of the replacement parts such as "replacement cable", "replacement hanger roller", and "replacement brake pad" are input in the repair work project, and the items such as "repair work completion", "repair required", and the like are input in the repair work result column.

The failure history data 377 has a data structure for storing the management number of the elevator 20, the failure occurrence date and time, the failure code, the recovery method, and the recovery determination result. The trouble code is a code in which a number or a combination of a number and an english alphabet is output from the control panel 210 when the elevator 20 has a trouble. The types of the fault codes are, for example, about 1000. For example, when the technician 350 moves to check, and restore, the item of the restoration method is input as "the technician moves". Further, for example, in the case where recovery is performed by the remote recovery system 100, a remote recovered item is input as "remote recovery". In the case where the elevator 20 is recovered and the operation is restarted, an item of the recovery determination result is input as "recovery". Further, in the case where the recovery of the elevator 20 fails, an item of the recovery determination result is input as "failure".

The data 378 classified into the failure causes stores the total number of the failure causes corresponding to the failure code when a certain failure code is output from the control panel 210, the number of the failure causes corresponding to the failure code based on the results of the inspection and the spot check by the technician 350, and the number of the failure causes corresponding to the failure code when the recovery is performed by the remote recovery system 100. For example, when the failure code is 0001 indicating a failure in the

doors

13 and 26, the technician 350 checks the failure code on site, and as a result, the main cause of outputting the failure code "0001" is a threshold garbage jam (failure main cause 1), a switch contact failure of the door opening/closing device (failure main cause 2), or another failure main cause 3. Therefore, the data 378 categorized as the cause of failure is configured such that when the failure code "0001" is output, 100 pieces of data are output when the threshold trash jam is the cause (cause of failure 1), 50 pieces of data are output when the switch contact failure of the door opening and closing device is the cause (cause of failure 2), and 10 pieces of data are output when the other failures are the causes 3. When the recovery of the elevator 20 is successful by the recovery command in the case of the recovery by the remote recovery system 100, the number of failure main causes corresponding to the failure code that is the basis of the recovery command is added to the number of failure main causes in the whole.

As shown in fig. 4, in the restoration diagnosis database 380, a restoration diagnosis command group, which is a group of a restoration command and a restoration diagnosis command, and a restoration rate (%) which is a rate at which the failure of the elevator 20 is restored by executing the restoration command are stored in the order of the number of causes of failure of the data 378 categorized by the causes of failure. The recovery diagnostics database 380 is a database that associates recovery diagnostics instruction sets and recovery rates with the previously described data 378 categorized by the primary cause of the failure.

Next, a data structure of the recovery diagnosis database 380 when the failure code is "0001" indicating a failure in the

gates

13 and 26 will be described. When the threshold garbage jam is a main cause (failure main cause 1), the recovery diagnosis data has the following data structure: the data structure is obtained by associating a recovery diagnosis command group a, which is a group of two commands including "gate circuit reset + gate high torque open/close" as a recovery command and "gate open/close diagnosis" as a recovery diagnosis command, with the number data of the failure cause 1, and the recovery rate x% of the recovery operation based on the recovery command. Similarly, when the contact failure of the switch of the door opening/closing device is a factor (failure factor 2), the recovery diagnosis data has the following data structure: this data structure is obtained by associating a recovery diagnosis command group B, which is a group of two commands including "gate reset + gate open/close retry" as a recovery command and "gate open/close diagnosis" as a recovery diagnosis command, and the number data of failure cause 2 with the recovery rate y% of recovery operation based on the recovery command. Similarly, in the case of failure cause 3, the recovery diagnosis data has the following data structure: the data structure is obtained by associating the recovery diagnosis command group C and the recovery rate z% with the number data of the failure factor 3. In this way, the recovery diagnosis database 380 stores the fault code, the fault factor corresponding to the fault code, the number of the fault factors, the recovery diagnosis command group as the group of the recovery command and the recovery diagnosis, and the recovery rate in the database in association with each other. In the present embodiment, the recovery rate y% is a numerical value larger than the recovery rates x% and z%, and the recovery rate of the recovery diagnosis command group B is higher than that of the recovery diagnosis command groups a and C.

Next, the operation of the remote recovery system 100 when a failure signal is transmitted from the elevator 20 will be described with reference to fig. 2, 5, and 6. In the following description, the remote recovery operation when the fault code signal "0001" related to the

gates

13 and 26 is transmitted will be described first. Next, a remote recovery operation when the failure code "0002" relating to the control circuit incorporated in the control panel 210 is transmitted will be described. Next, a remote recovery operation when the failure code "0003" relating to the brake in the drive device 24 is transmitted will be described. The remote recovery system 100 can also cope with a case where a fault code relating to a part other than the above is transmitted.

As shown in fig. 2 and step S101 of 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 occurs in

doors

13 and 26 of elevator 20, for example, a failure such as a door failure, control panel 210 outputs the date and time of the failure occurrence and a failure code "0001" indicating that the failure is a failure in doors to communication device 250. If the elevator 20 is not in trouble, the control panel 210 returns to the beginning of step S101 and continues monitoring the elevator 20.

When the trouble code "0001" is input from the control board 210, the communication device 250 transmits a trouble signal including the trouble code "0001", the management number of the elevator 20, and the trouble occurrence date and time to the communication network 30 as shown in step S102 of fig. 2 and 5. As shown in step S103 of fig. 2 and 5, the communication device 320 of the remote monitoring center 310 receives the failure signal transmitted by the communication device 250 via the communication network 30. Upon receiving the failure signal, communication device 320 outputs failure code "0001", the management number of elevator 20, and the failure occurrence date and time, which are included in the failure signal, to information processing device 360. The information processing device 360 stores the inputted fault code "0001", the management number of the elevator 20, and the fault occurrence date and time in the fault history data 377 of the maintenance database 370.

Then, as shown in step S104 of fig. 5, the information processing device 360 determines whether the elevator 20 in which the failure has occurred can be remotely recovered. As shown in fig. 2 and 3, the information processing device 360 acquires the model, the date of manufacture, and the number of manufacture of the elevator 20 from the elevator specification data 371 using the management number of the elevator 20. The information processing device 360 checks whether or not the elevator 20 is of a specification that enables the recovery operation and the recovery diagnosis operation based on the recovery command and the recovery diagnosis command from the remote recovery device 300, based on the acquired specification data. When the elevator 20 is of a type that cannot perform the remote restoration operation, the information processing device 360 outputs a signal notifying that the remote restoration is not possible to the remote monitoring center 310 as shown in step S124 of fig. 2 and 5.

As shown in fig. 2, the information processing apparatus 360 checks the following (a) to (f) with reference to the inspection history data 372, the maintenance job history data 373, the remote checkup history data 374, the anomaly history data 375, the repair construction history data 376, and the failure history data 377.

(a) Elevator 20 is the elevator for which there was an indication of modification of the adjustment in the most recent inspection.

(b) Elevator 20 is the elevator that has been scheduled for maintenance recently or that day and is predicted to have a possibility of a regulatory error.

(c) In the remote spot inspection, the elevator 20 has an abnormal diagnosis result.

(d) Recently, the elevator 20 has a different shape.

(e) The elevator 20 is an elevator in which repair work has been recently performed.

(f) Elevator 20 has recently transmitted a fault signal based on the same fault code "0001".

If the result matches any one or more of the above (a) to (f), the information processing device 360 determines that the dispatch of the technician 350 to the building 10 is better than the recovery by the remote recovery system 100, and determines no in step S104 in fig. 5. Then, as shown in step S124 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.

Further, the information processing device 360 checks whether the building 10 is a building in which a failure signal is frequently erroneously transmitted, based on the elevator specification data 371 and the failure history data 377 using the management number of the elevator 20. In such a case, since the possibility of erroneous transmission of the failure signal is high, the information processing device 360 determines that the dispatch of the technician 350 to the building 10 is better than the recovery by the remote recovery system 100, and determines no in step S104 in fig. 5. Then, as shown in step S124 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.

As shown in fig. 2, the notification of non-remote-recoverability output from the information processing apparatus 360 to the remote monitoring center 310 is displayed on the display 331 of the remote monitoring center 310. If the monitoring party 334 confirms the display, the operation of the elevator 20 is instructed and the broadcast operation is performed as shown in step S125 in fig. 2 and 6. Further, as shown in step S126 of fig. 2 and 6, the monitoring party 334 instructs the service center 340 in the vicinity of the building 10 to dispatch a technician 350 to the building 10 using the telephone 333.

When it is determined in step S104 of fig. 5 that the elevator 20 is not remotely recoverable, in step S103, the information processing device 360 stores the input failure code "0001" and the management number and the failure occurrence date and time of the elevator 20 in the failure history data 377 of the maintenance database 370. Then, the information processing apparatus 360 terminates the remote restoration operation without performing the update of the other data of the maintenance database 370 and the update of the restoration diagnosis database 380.

On the other hand, in step S104 shown in fig. 5, as shown in fig. 2, the information processing apparatus 360 refers to the inspection history data 372, the maintenance job history data 373, the remote checkup history data 374, the anomaly history data 375, the repair construction history data 376, and the failure history data 377, and confirms the following (g) to (n).

(g) The elevator 20 is a standard capable of performing a recovery operation and a recovery diagnosis operation in response to a recovery command and a recovery diagnosis command from the remote recovery device 300.

(h) Elevator 20 has no adjustment modification indication in the most recent inspection.

(i) Elevator 20 has no maintenance schedule recently or the day and is not predicted to have a possibility of adjustment error.

(j) There is no diagnosis result of abnormality of the elevator 20 in the remote spot inspection.

(k) Recently, no anomaly has occurred in the elevator 20.

(l) The elevator 20 has not recently performed a repair work.

(m) the elevator 20 has not recently transmitted a fault signal based on the same fault code "0001".

(n) the building 10 is not a building in which the false transmission of the failure signal is large.

When all of the above conditions (g) to (n) are satisfied, the information processing apparatus 360 determines yes in step S104 shown in fig. 5, and notifies the remote monitoring center 310 of the start of remote restoration in step S105. The signal is displayed on the display 331 of the remote monitoring center 310. This notifies the monitoring party 334 of the remote monitoring center 310 of the start of remote restoration of the elevator 20.

If the information processing apparatus 360 notifies the remote monitoring center 310 of the start of remote restoration in step S105, the flow proceeds to step S106 shown in fig. 5, and a restoration instruction and a restoration diagnosis instruction corresponding to the failure code "0001" are selected. As previously described with reference to fig. 4, the recovery diagnostics database 380 is a database that associates groups of recovery diagnostics instructions and recovery rates with data 378 categorized by the primary cause of the failure. Hereinafter, the data structure of the recovery diagnosis database 380 when the failure code is "0001" indicating a failure in the

gates

13 and 26 will be described again in brief. When the threshold garbage jam is a main cause (failure main cause 1), the recovery diagnosis data has the following data structure: the data structure is obtained by associating a recovery diagnosis command group a, which is a group of two commands including "gate circuit reset + gate high torque open/close" as a recovery command and "gate open/close diagnosis" as a recovery diagnosis command, with the number data of the failure cause 1, and the recovery rate x% of the recovery operation based on the recovery command. Similarly, when the contact failure of the switch of the door opening/closing device is a factor (failure factor 2), the recovery diagnosis data has the following data structure: this data structure is obtained by associating a recovery diagnosis command group B, which is a group of two commands including "gate reset + gate open/close retry" as a recovery command and "gate open/close diagnosis" as a recovery diagnosis command, with the number data of the failure factor 2, by the recovery rate y% of the recovery operation based on the recovery command. Similarly, in the case of failure cause 3, the recovery diagnosis data has the following data structure: the data structure is obtained by associating the recovery diagnosis command group C and the recovery rate z% with the number data of the failure factor 3. As described above, the recovery rate y% is a numerical value greater than the recovery rates x% and z%, and the recovery rate of the recovery diagnosis instruction group B is higher than that of the recovery diagnosis instruction groups a and C.

The information processing apparatus 360 may select, as the restoration instruction, an instruction corresponding to the failure factor having the largest number of pieces out of the plurality of failure factors corresponding to the failure code "0001". Further, the information processing apparatus 360 may select, as the restoration instruction, an instruction having the highest restoration rate among the plurality of instructions corresponding to the failure code "0001". Then, the information processing apparatus 360 selects a recovery diagnosis instruction group in which a recovery diagnosis instruction corresponding to the selected recovery instruction and the selected recovery instruction form a group.

First, a case will be described in which the information processing apparatus 360 selects, as a recovery instruction, an instruction corresponding to the failure factor having the largest number of pieces out of the failure factors corresponding to the failure code "0001". The information processing apparatus 360 refers to the restoration diagnosis database 380 as a restoration instruction, and confirms the cause of the failure with the largest number of times in the case of the failure code "0001". Then, the information processing device 360 selects a recovery diagnosis command group a composed of two commands, i.e., "gate reset + gate high torque opening/closing" as a recovery command for executing a recovery operation corresponding to the threshold garbage jam (failure cause 1) which is the cause of the failure having the largest number of failures, and "gate opening/closing diagnosis" as a recovery diagnosis command for executing a recovery diagnosis operation corresponding to the result of the recovery operation.

Next, a case will be described in which the information processing apparatus 360 selects, as a recovery instruction, an instruction having the highest recovery rate among a plurality of instructions corresponding to the fault code "0001". The information processing apparatus 360 refers to the restoration diagnosis database 380 as a restoration instruction, and checks the restoration rate corresponding to the failure code "0001" that is the highest restoration rate. Then, the information processing device 360 selects a recovery diagnosis command group B composed of two commands, i.e., "gate reset + gate open/close retry" as a recovery command for executing a recovery operation corresponding to the cause of the switch contact failure (failure cause 2) which is the highest recovery rate y%, and "gate open/close diagnosis" as a recovery diagnosis command for executing a recovery diagnosis operation corresponding to the result of the recovery operation.

When the recovery diagnosis command group is selected, the selection may be made based on the failure factor having the largest number of times corresponding to the failure code "0001" or based on the recovery rate of the recovery diagnosis command group corresponding to the failure code "0001" as described below. For example, the ratio of the maximum number of pieces to the next number of pieces (the number ratio) and the ratio of the maximum recovery rate to the next recovery rate (the recovery rate ratio) may be selected to be larger, that is, to be larger than the next numerical value. For example, when the previous remote recovery failed, a different selection method may be used. The selection of the restoration diagnosis command group may be determined, for example, according to the model, specification, and the like of the elevator 20.

In the following description, a case will be described in which the information processing device 360 selects the restoration diagnosis instruction group a based on the failure factor 1 having the largest number of pieces corresponding to the failure code "0001".

When the restoration diagnosis instruction group a is selected in step S106 of fig. 5, the information processing apparatus 360 transmits the selected restoration diagnosis instruction group a from the communication apparatus 320 as shown in fig. 2 and step S107 of fig. 5. As shown in step S108 of fig. 2 and 5, when receiving the restoration diagnostic instruction group a from the communication device 320, the communication device 250 outputs a restoration instruction and a restoration diagnostic instruction to the control panel 210.

First, as shown in step S109 of fig. 5, the control panel 210 checks that there is no passenger in the car 22 based on the stop of the elevator 20 and the outputs of the weight sensor of the car 22, the imaging device in the car 22, the people sensor in the car 22, and the like. Then, the control board 210 makes "now start remote restoration from the speaker of the call device provided in the car 22 if it is confirmed that the elevator 20 has stopped and there is no passenger in the car 22. The elevator door will open and close. "etc.

When the broadcast is finished, the control panel 210 advances the process to step S110 in fig. 5, and executes the resume operation in accordance with the resume instruction. Since the currently received restoration command is "gate reset + high-torque gate opening/closing" as a restoration command for executing the restoration operation corresponding to the threshold garbage jam (failure cause 1), the control panel 210 first resets the gate of the control panel 210. This operation is an operation in which the gate circuit resets the state in which it is detected that the

door

13 or 26 is not openable and closable, and is in the open (or closed) state or the half-open (or half-closed) state, thereby allowing the

door

13 or 26 to be openable and closable. Then, the control panel 210 makes the torque of the driving motor of the door 13 and the door 26 higher than the normal torque by 20 to 30%, and opens and closes the door 13 and the door 26 with a larger force than the normal torque. This operation is an operation of moving the dust jammed on the door sill of the door from the door sill to return the opening and closing operations of the

doors

13 and 26 to the normal state. In order to confirm whether or not the opening and closing of the

doors

13 and 26 are resumed by moving the dust jammed on the doorsills of the

doors

13 and 26 by the above-described operation, the control panel 210 executes "door opening and closing diagnosis" as a resume diagnosis command, as shown in step S111 of fig. 5. The control panel 210 opens and closes the door 13 and the door 26 with a normal torque, and checks whether or not the opening and closing operations are successfully performed with a predetermined opening and closing time, and whether or not the current of the drive motor of the door 13 and the door 26 is not larger than a normal current. Next, the control panel 210 opens and closes the door 13 and the door 26 so that the torque of the drive motor is lower than the normal torque by about 20%, and checks whether or not there is an abnormality in the opening and closing time.

Then, as shown in step S112 in fig. 5, when the control board 210 determines that the

doors

13 and 26 have been returned to the normal state by the return diagnosis operation, the process proceeds to step S113 in fig. 5. In step S113, the control panel 210 outputs a determination result signal indicating that the elevator 20 has recovered. The signal is transmitted from the communication device 250 to the communication network 30. As shown in step S114 of fig. 6, the transmitted determination result signal is received by the communication device 320, and the determination result is input to the information processing device 360. Further, as shown in step S115 of fig. 6, the determination result is notified to the remote monitoring center 310 by the information processing apparatus 360, and the result is displayed on the display 331 of the remote monitoring center 310. When the monitoring party 334 of the remote monitoring center 310 confirms the display, the operation of the elevator 20 is restarted and the broadcast operation is performed as shown in step S116 of fig. 6. Further, as shown in step S117 and step S118 of fig. 6, the information processing apparatus 360 updates the maintenance database 370 and the recovery diagnosis database 380.

On the other hand, if the result of the recovery diagnosis operation is determined as no in step S112 in fig. 5, the control panel 210 advances the process to step S119 in fig. 5. In step S119, the control panel 210 outputs a determination result signal indicating that the recovery of the elevator 20 has failed. The signal is transmitted from the communication device 250 to the communication network 30. As shown in step S120 in fig. 6, the transmitted determination result signal is received by the communication device 320, and the determination result is input to the information processing device 360. Further, as shown in step S121 of fig. 6, the determination result is notified to the remote monitoring center 310 by the information processing apparatus 360, and the result is displayed on the display 331 of the remote monitoring center 310. When confirming the display, the monitoring party 334 instructs the elevator 20 to stop the operation and performs a broadcast operation as shown in step S122 in fig. 6. Further, as shown in step S123 of fig. 2 and 6, the monitoring party 334 instructs the service center 340 near the building 10 to dispatch a technician 350 to the building 10 using the telephone 333. Further, as shown in step S117 and step S118 of fig. 6, the information processing apparatus 360 updates the maintenance database 370 and the recovery diagnosis database 380.

When the determination signal indicating that the elevator 20 has recovered is input as shown in step S113 in fig. 5, the information processing device 360 updates the maintenance database 370 as follows.

When the determination signal that the elevator 20 has recovered is input as shown in step S113 in fig. 5, the information processing device 360 stores "remote recovery" in the item of the recovery method of the failure history data 377 and "recovery" in the item of the recovery determination result. As described above, when the communication device 320 receives the failure signal, the information processing device 360 stores the failure code "0001" input from the communication device 320 and the management number of the elevator 20, the failure occurrence date and time in the failure history data 377 of the maintenance database 370. Therefore, all the items of the failure history data 377 are updated by the present recovery method and the storage of the recovery determination result.

In the present remote recovery, the information processing apparatus 360 refers to the recovery diagnosis database 380, and selects a recovery diagnosis command group a having two configurations, that is, a recovery command for causing the recovery operation corresponding to the threshold garbage jam (failure cause 1) which is the failure cause having the largest number of times in the case of the failure code "0001", to be executed by a "gate reset + gate opening/closing retry", and a "gate opening/closing diagnosis" which is a recovery diagnosis command for causing the recovery diagnosis operation corresponding to the result of the recovery operation, and executes the recovery operation and the recovery diagnosis operation. Therefore, when the elevator 20 is successfully restored, the number of the failure codes "0001" and the number of the failure cause 1 (threshold garbage clogging) in the restoration diagnosis database 380 are increased by 1, and the restoration rate is increased by the restoration success amount. Further, the information processing device 360 increases the number of failure cause 1 pieces of the failure code "0001" of the data 378 categorized by the failure cause by 1 piece.

On the other hand, when a determination signal indicating that the elevator 20 has failed to be recovered is input as shown in step S119 in fig. 5, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as follows. When a determination signal indicating that the elevator 20 has failed to recover is input as shown in step S119 in fig. 5, the information processing device 360 stores "remote recovery" in the item of the recovery method of the failure history data 377 and "failure" in the item of the recovery determination result. Further, the failure code "0001" in the recovery diagnosis database 380 and the number of the failure cause 1 (threshold garbage jam) are kept as they are, and the recovery rate is reduced by the amount of recovery failure. In addition, in the case of failure of recovery, the number of failure cause 1 of the failure code "0001" of the data 378 categorized as a failure cause is not changed.

In the above description, the case where the information processing device 360 selects the restoration diagnosis instruction group a based on the failure factor having the largest number of pieces corresponding to the failure code "0001" has been described. When the information processing device 360 selects the recovery diagnosis command group B based on the recovery rate of the recovery diagnosis command group corresponding to the failure code "0001", the difference is that, instead of the recovery operation of "door high torque opening and closing", the recovery operation of "door opening and closing retry" is performed in which the opening and closing operations of the

doors

13 and 26 are performed again at normal torque. The other operations are the same as those in the case where the recovery diagnosis instruction group a is selected.

When the remote restoration of the elevator 20 is successful, the number of threshold trash plugs (failure cause 1) that are the failure causes having the largest number of times in the case of the failure code "0001" has been increased. Therefore, in the case where the remote recovery system 100 selects the recovery diagnosis command group based on the failure factor having the largest number of times corresponding to the failure code "0001", when the failure code "0001" is input at the next remote recovery, the information processing apparatus 360 selects the recovery diagnosis command group a again. Further, in the case where the recovery rate of the recovery diagnosis instruction group a is higher than that of the recovery diagnosis instruction group B, even in the case where the information processing apparatus 360 selects, as the recovery instruction, an instruction having the highest recovery rate among the plurality of instructions corresponding to the fault code "0001", the recovery diagnosis instruction group a is selected.

On the other hand, when the remote restoration of the elevator 20 fails, the number of failure cause 1 of the failure code "0001" of the data 378 classified by the failure cause is not changed, but the restoration rate of the restoration diagnosis instruction group a is decreased. Thus, the recovery rate of the recovery diagnosis instruction group B becomes relatively high. That is, the recovery rate ratio of the recovery diagnosis instruction group B to the recovery diagnosis instruction group a becomes high. When the recovery rate ratio is larger than the number-of-pieces ratio calculated as the ratio of the number of failure causes 1 to the number of failure causes 2, the information processing device 360 selects, as a recovery instruction, an instruction having the highest recovery rate among the plurality of instructions corresponding to the failure code "0001". Therefore, when the failure code "0001" is input at the next remote recovery, the information processing apparatus 360 selects the recovery diagnosis instruction group B having the highest recovery rate. Further, in a case where the information processing apparatus 360 does not select the recovery diagnosis instruction group a in which recovery failed in the last remote recovery, the recovery diagnosis instruction group B associated with the failure primary cause 2, the number of which is more than the failure primary cause 1, corresponding to the failure code "0001", is selected.

When the information processing device 360 selects the recovery diagnosis command group B having the highest recovery rate among the plurality of commands corresponding to the trouble code "0001" and succeeds in the recovery of the elevator 20, the recovery rate of the recovery diagnosis command group B becomes high. Therefore, in the next remote restoration, the information processing apparatus 360 selects the restoration diagnostic instruction group B in the same manner as in the previous time. On the other hand, if the recovery of the elevator 20 is failed by the recovery diagnosis command group B, the recovery rate of the recovery diagnosis command group B becomes low. Then, if the recovery rate of the recovery diagnosis instruction group B is lower than that of the recovery diagnosis instruction group a, the information processing apparatus 360 selects the recovery diagnosis instruction group a. In addition, in a case where the information processing apparatus 360 does not select the recovery diagnosis instruction group B whose recovery failed in the last remote recovery, the recovery diagnosis instruction group a having the recovery rate corresponding to the failure code "0001" next higher than that of the recovery diagnosis instruction group B is selected.

In this way, when the remote restoration is successful, the remote restoration system 100 increases the number of causes of the failure and the restoration rate of the selected restoration diagnosis instruction set. Further, when the remote restoration fails, the remote restoration system 100 reduces the restoration rate of the selected restoration diagnosis instruction set by keeping the number of the causes of the failure as it is. Therefore, when the remote restoration is successful, the possibility that the restoration diagnostic instruction group selected in the remote restoration is selected at the next remote restoration becomes high. Further, when the remote restoration fails, the possibility that the restoration diagnostic instruction group selected in the remote restoration is selected at the next remote restoration becomes small. Therefore, as the number of times of remote restoration increases, the information processing device 360 can select a restoration diagnosis command group having a high possibility of restoration corresponding to the trouble code from the restoration diagnosis database 380, and can improve the reliability of the restoration of the elevator 20.

In the above-described embodiment, the operation of the remote recovery system 100 when the failure code "0001" indicating a failure in the

doors

13 and 26 is output from the control panel 210 is described. Next, a case will be described in which the control panel 210 outputs a failure code "0002" indicating that the failure is related to the control circuit. Note that the same operation as in the case where the failure code "0001" is output is not described.

When the failure code is "0002" indicating a failure related to the control circuit, the failure code "0002" is output mainly due to the presence of a failure in the relay mounted on the control board 210 (failure cause 4), the presence of a failure in the relay drive circuit that drives the relay (failure cause 5), or another failure cause 6. The data 378 categorized as the cause of failure is configured such that, in the case of the failure code "0002", 100 pieces of data are used when the failure of the relay is the cause (cause of failure 4), 50 pieces of data are used when the failure of the relay drive circuit is the cause (cause of failure 5), and 10 pieces of data are used when the failure of the other cause of failure 6. As described above, when the recovery of the elevator 20 is successful by the recovery command when the recovery is performed by the remote recovery system 100, the number of failure causes corresponding to the failure code that is the basis of the recovery command is added to the total number of failure causes.

As shown in fig. 7, the recovery diagnosis database 380 is a database that associates a recovery diagnosis instruction group and a recovery rate with data 378 categorized by a failure primary cause. Hereinafter, a data structure of the recovery diagnosis database 380 when the failure code indicates "0002" indicating a failure related to the control circuit will be described. When there is a failure in the relay (failure factor 4), the recovery diagnosis data is configured as a data structure including: the data structure is obtained by associating a recovery diagnosis command group D, which is a group of two commands including "control circuit reset + low-speed up/down operation" as a recovery command and "diagnosis of operation at each level and high-speed operation" as a recovery diagnosis command, with the number data of the failure factor 4, the recovery rate a% of the recovery operation based on the recovery diagnosis command. When there is a failure in the relay drive circuit (failure factor 5), the recovery diagnosis data has the following data structure: the data structure is obtained by associating a recovery diagnosis command group E, which is a group of two commands including "control circuit reset + operation between the uppermost layer and the lowermost layer" as a recovery command and "operation at each layer and high-speed operation diagnosis" as a recovery diagnosis command, with the number data of the causes of failure 5 by the recovery diagnosis command recovery rate b%. Similarly, in the case of the failure factor 6, the recovery diagnosis data is configured as a data structure in which the recovery diagnosis command group F and the recovery rate c% are associated with the number data of the failure factor 6. In this way, the restoration diagnosis database 380 stores the failure code, the failure factor corresponding to the failure code, the number of the failure factors, the restoration diagnosis instruction group as the group of the restoration instruction and the restoration diagnosis, and the restoration rate in the database in association with each other. In addition, with respect to the recovery rate, b% of the recovery diagnosis instruction group E is the highest.

When the failure code is "0002", if the information processing device 360 selects the restoration diagnosis command group D based on the failure factor having the largest number of pieces corresponding to the failure code "0002", the information processing device 360 transmits the restoration diagnosis command group D to the control panel 210. After the control circuit reset operation is performed, the control panel 210 performs low-speed up/down operation for raising/lowering the car 22 of the elevator 20 at a low speed. Then, the control panel 210 executes high-speed operation for stopping at each floor without opening and closing the

doors

13 and 26 and high-speed operation for operating at high speed between a plurality of floors, and checks whether or not there is no abnormality in the operation at each floor and the traveling operation at high speed. The control panel 210 outputs a result of determination of success of recovery of the elevator 20 when there is no abnormality in the operation of each floor and the high-speed operation. When an abnormality is detected during the operation at each floor or the high-speed operation, the control panel 210 outputs a result of determination of failure in recovery of the elevator 20. The 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 updates the failure history data 377, the data 378 categorized by the failure cause, and the restoration diagnosis database 380 based on the determination result so that a restoration diagnosis instruction group having a higher restoration possibility can be selected.

When the information processing device 360 selects the recovery diagnosis command group E having the highest recovery rate corresponding to the failure code "0002", the information processing device 360 transmits the recovery diagnosis command group E to the control panel 210. After the control circuit reset operation is performed, the control panel 210 performs the lowermost floor and the uppermost floor operation for moving the car 22 of the elevator 20 between the lowermost floor and the uppermost floor. Next, the control panel 210 executes the above-described operation at each floor and high-speed operation, performs a recovery diagnosis of the elevator 20, and outputs a result of determination as to whether the recovery of the elevator 20 is successful 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 apparatus 360 updates the failure history data 377, the data 378 categorized by the failure cause, and the restoration diagnosis database 380 based on the determination result so that a restoration diagnosis instruction group with a higher restoration possibility can be selected.

Next, a case where the failure code is "0003" indicating a failure related to the brake will be described.

If the failure code is 0003 indicating a failure related to the brake, the technician 350 checks the failure code on site, and as a result, outputs the failure code "0003" mainly due to an abnormality of the brake circuit of the control panel 210 (failure main cause 7), or other failure main causes 8 and 9. Therefore, the data 378 categorized as the cause of failure is configured such that, in the case of the failure code "0003", 100 pieces of data are used when the abnormality of the brake circuit is the cause (failure cause 7), 50 pieces of data are used when the failure cause 8, and 10 pieces of data are used when the other failure cause 9. As described above, when the recovery of the elevator 20 is successful by the recovery command in the case of the recovery by the remote recovery system 100, the number of failure causes corresponding to the failure code that is the basis of the recovery command is added to the total number of failure causes.

As shown in fig. 8, the recovery diagnosis database 380 is a database that associates a recovery diagnosis instruction group and a recovery rate with data 378 categorized by a failure primary cause. Hereinafter, a 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 brake circuit abnormality is a factor (failure factor 7), the recovery diagnosis data has the following data structure: the data structure is obtained by associating a recovery diagnosis command group G, which is a group of two commands including "control circuit reset" as a recovery command and "brake torque diagnosis" as a recovery diagnosis command, with the number data of the failure factor 7, the recovery rate d% of the recovery operation based on the recovery diagnosis command. In the case of the failure factor 8 and the failure factor 9, the recovery diagnosis data is configured as a data structure in which the recovery diagnosis command group H and the recovery rate e%, and the recovery diagnosis command group I and the recovery rate f% are associated with the pieces of data of the failure factor 8 and the failure factor 9, respectively. In this way, the restoration diagnosis database 380 stores the failure code, the failure factor corresponding to the failure code, the number of the failure factors, the restoration diagnosis instruction group as the group of the restoration instruction and the restoration diagnosis, and the restoration rate in the database in association with each other. In addition, as for the recovery rate, e% of the recovery diagnosis instruction group H is the highest.

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

If the failure code is "0003", in step S106 in fig. 5, if the information processing device 360 selects the restoration diagnosis command group G based on the failure factor having the largest number of pieces corresponding to the failure code "0003", the information processing device 360 transmits the restoration diagnosis command group G to the control panel 210.

When the failure code is "0003", the control panel 210, upon receiving the recovery diagnosis command group G, executes the brake torque diagnosis operation in the site confirmation shown in step S109 in fig. 5. The brake torque diagnosis operation is an operation of applying a driving force to the hoisting machine in the drive device 24 in a state where the hoisting machine is not rotated by the mechanical brake and confirming that the hoisting machine is not rotated by the holding force of the brake. If there is no abnormality in this operation, the control panel 210 broadcasts a remote recovery as a successful on-site confirmation of the elevator 20 in step S109 in fig. 5. Then, the process proceeds to step S110 in fig. 5, and the control panel 210 executes a control circuit reset operation.

Then, the control panel 210 executes the brake torque diagnosing operation. If there is no rotation of the hoisting machine due to this operation, the control panel 210 outputs a determination result of success of recovery of the elevator 20. When the hoisting machine is rotated, the control panel 210 outputs a result of determination that the elevator 20 has failed to recover. 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 apparatus 360 updates the failure history data 377, the data 378 categorized by the failure cause, and the restoration diagnosis database 380 based on the determination result so that a restoration diagnosis instruction group having a high restoration possibility can be selected.

In addition, as described above, the information processing device 360 can select the recovery diagnosis command group H having the highest recovery rate corresponding to the failure code "0003" and cause the control panel 210 to execute the recovery operation and the recovery diagnosis operation.

In addition, when there is an abnormality in the brake torque diagnosis operation, the brake disk 210 determines that the remote restoration cannot be started, and notifies the remote monitoring center 310 that the remote restoration is not possible without executing the remote restoration operation.

As described above, when various kinds of trouble occur in the elevator 20, the recovery of the elevator 20 can be performed by causing the elevator 20 to execute the recovery operation and the recovery diagnosis operation in accordance with a command from the remote recovery device 300 disposed at a place distant from the elevator 20. Therefore, when the elevator 20 has a failure, the service of the elevator 20 can be improved by recovering the elevator 20 in a short time without moving the technician 350 to the site.

Further, the remote restoration system 100 updates the failure history data 377, the data 378 categorized by the failure main cause, and the restoration diagnosis database 380 based on the restoration determination result, so that a restoration diagnosis instruction group with a higher restoration possibility can be selected at the next remote restoration. Therefore, as the number of remote recoveries increases, the information processing apparatus 360 can select a more appropriate recovery diagnosis instruction group corresponding to the trouble code from the recovery diagnosis database 380. This enables the elevator 20 to be restored more reliably, and the time required for restoration can be shortened, thereby improving the operation service of the elevator 20.

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

Description of the reference symbols

10: a building; 11: a hoistway; 12: a floor; 13, 26: a door; 20: an elevator; 22: a car; 23: a cable; 24: a drive device; 27: a ground surface; 30, 35: a communication network; 100: remotely restoring the system; 200: an elevator control device; 210: a control panel; 250, 320: a communication device; 300: a remote recovery device; 310: a remote monitoring center; 330: monitoring the disc; 331: a display; 332: a switch; 333: a telephone; 334: a monitoring party; 340: a service center; 350: a technician; 360: an information processing device; 370: maintaining a database; 371: elevator specification data; 372: checking historical record data; 373: maintaining job history data; 374: remote checking historical record data; 375: abnormal historical record data; 376: repairing construction history record data; 377: fault history data; 378: data categorized by failure primary cause; 380: the diagnostic database is restored.

Claims

1. A remote recovery system for an elevator failure, comprising:

an elevator control device for performing drive control of an elevator; and

a remote recovery device which communicates with the elevator control device and causes the elevator to perform a recovery operation for the failure,

the elevator control device sends a failure signal when detecting the failure of the elevator,

characterized in that the fault signal contains a fault code of the elevator,

the remote restoration device is provided with a restoration diagnosis database which associates the fault code, the number of failure causes corresponding to the fault code, a restoration diagnosis command group which is a group of two commands, namely a restoration command corresponding to the fault code and a restoration diagnosis command corresponding to the restoration command, and a restoration rate which is a rate at which the elevator is restored by the restoration command,

upon receiving the failure signal, selecting a recovery diagnosis command group corresponding to a failure factor having a large number of failure factors among a plurality of failure factors corresponding to a failure code included in the failure signal, or a recovery diagnosis command group including a recovery command having a high recovery rate among a plurality of recovery commands corresponding to the failure code included in the failure signal, with reference to the recovery diagnosis database,

transmitting the selected restoration diagnostic instruction group to the elevator control device,

causing the elevator control device to continuously execute a recovery operation of the elevator and a recovery diagnosis operation corresponding to a result of the recovery operation,

the elevator control device determines whether the elevator has recovered through a recovery diagnosis operation after a recovery operation performed according to a recovery command, and transmits a determination result to the remote recovery device.

2. The remote recovery system of an elevator fault according to claim 1,

the remote restoration apparatus selects a restoration diagnosis instruction group corresponding to the restoration instruction with the largest number of failure causes among the plurality of failure causes corresponding to the failure code, or a restoration diagnosis instruction group including a restoration instruction with the highest restoration rate among the plurality of restoration instructions corresponding to the failure code.

3. The remote recovery system of an elevator fault according to claim 1 or 2, wherein,

the remote restoration device updates the number of failure causes corresponding to the failure code in the restoration diagnosis database based on the determination result of whether the elevator has been restored, the determination result being transmitted from the elevator control device.

4. The remote recovery system of an elevator fault according to claim 3,

the remote restoration device updates the number of failure causes and the restoration rate of the failure cause corresponding to the failure code in the restoration diagnosis database according to the determination result of whether the elevator has been restored, which is transmitted from the elevator control device.