CN110035969B

CN110035969B - Remote recovery system for elevator fault

Info

Publication number: CN110035969B
Application number: CN201680091152.4A
Authority: CN
Inventors: 西山秀树
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: 2020-09-25
Anticipated expiration: 2036-11-29
Also published as: CN110035969A; KR20190083669A; KR102162671B1; JPWO2018100606A1; WO2018100606A1; JP6522254B2

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 transmits a failure signal including a failure code of the elevator (20) and at least one elevator status code, and when receiving the failure signal, the remote recovery device (300) transmits a recovery command and a recovery diagnosis command corresponding to the failure code and the elevator status 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 of a failure, wherein the elevator control device transmits a failure signal including a failure code of the elevator and at least one elevator status code when detecting the failure of the elevator, and the remote recovery device transmits a recovery command and a recovery diagnosis command corresponding to the failure code included in the failure signal and the elevator status code to the elevator control device when receiving the failure signal, and causes the elevator control device to execute the recovery operation and the recovery diagnosis operation of the elevator.

In the remote recovery system for an elevator failure according to the present invention, when the elevator status code received from the elevator control device is one, 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 and the elevator status code, or a command having a high recovery rate, which is a ratio of recovering the elevator by the recovery command, out of a plurality of recovery commands corresponding to the failure code and the elevator status code, and when the elevator status code received from the elevator control device is a plurality of, 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 and the elevator status code having a large number of times of reception together with the failure code, Or a restoration rate, which is a ratio of the failure code to the elevator state code received together with the failure code, to be restored by the restoration command, among a plurality of restoration commands corresponding to the failure code and the elevator state code received together with the failure code a plurality of times, and the restoration diagnosis command is a command corresponding to the restoration 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 factors among a plurality of failure factors corresponding to the failure code and the elevator status code, or a command having the highest recovery rate, which is a ratio of the failure factor to recover the elevator by the recovery command, among a plurality of recovery commands corresponding to the failure code and the elevator status code, when the elevator status code received from the elevator control device is a plurality of, the recovery command may be a command corresponding to a failure factor having the largest number of factors among a plurality of failure factors corresponding to the elevator status code having the largest number of times of reception together with the failure code, Or a command having the highest recovery rate, which is the ratio of the elevator to be recovered by the recovery command, among a plurality of recovery commands corresponding to the fault code and the elevator status code received together with the fault code a large number of times.

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 recovery diagnosis device may include a recovery diagnosis database in which the failure code, the elevator status code, the number of causes of failure corresponding to the failure code and the elevator status 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 and the elevator status 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 elevator status code, the number of causes of failure corresponding to the failure code and the elevator status 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 elevator status 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 data categorized by the failure principal cause in the maintenance database shown in fig. 2.

Fig. 5 is a diagram showing the structure of the recovery diagnosis database shown in fig. 2.

Fig. 6 is a diagram showing another structure of the restoration diagnosis database shown in fig. 2.

Fig. 7 is a flowchart showing the operation of the remote recovery system for an elevator failure in the embodiment of the present invention.

Fig. 8 is a flowchart showing the operation of the remote recovery system for an elevator failure in the embodiment of the present invention.

Fig. 9 is a diagram showing the structure of another data categorized by the failure principal cause in the maintenance database shown in fig. 2.

Fig. 10 is a diagram showing the structure of the recovery diagnosis database corresponding to the data categorized by the failure principal cause shown in fig. 9.

Fig. 11 is a diagram showing the structure of another recovery diagnosis database corresponding to the data categorized by the failure principal cause shown in fig. 9.

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 the 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 command and a recovery diagnosis command corresponding to a failure code and an elevator status 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, the data structure of the elevator specification data 371, the inspection history data 372, the maintenance operation history data 373, the remote inspection history data 374, the anomaly history data 375, the repair construction history data 376, the failure history data 377, and the data 378 categorized by the failure cause will be described with reference to fig. 3 and 4.

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 elevator status 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. The elevator status code is a code composed of a term indicating the status of the elevator 20, which is output from the control panel 210 together with the failure code when the elevator 20 has failed. The elevator status code includes, for example, "door cannot be opened" and "door cannot be closed". One elevator status code may be output together with one trouble code, or a plurality of elevator status codes may be output together with one trouble code. 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".

As shown in fig. 4, the data 378 classified by the cause of failure stores the number of times that a certain failure code and a certain elevator status code are received when the certain failure code and the certain elevator status code are output from the control panel 210. The data 378 classified into the failure causes stores the total number of the number of failure causes corresponding to the failure code and the elevator status code based on the result of the inspection and the spot check performed when the technician 350 goes to the site, and the number of failure causes corresponding to the failure code and the elevator status code when the recovery by the remote recovery system 100 has been performed.

For example, a case will be described where the fault code is 0001 indicating a fault related to the

doors

13, 26 and the elevator status code "cannot open the door" is received a times. As a result of the on-site spot inspection by the technician 350, the main causes of outputting the fault code "0001" and the elevator status code "door cannot be opened" are a threshold trash jam (fault cause 1), a contact failure of a switch of the door opening/closing device (fault cause 2), and other fault causes 3. Therefore, the data 378 categorized as the cause of failure is configured such that when the elevator status codes of the failure code "0001" and "door cannot be opened" are output, 100 pieces of data are output when the threshold trash jam is the cause (failure cause 1), 50 pieces of data are output when the switch contact failure of the door opening and closing device is the cause (failure cause 2), and 10 pieces of data are output when the other failure causes 3. When the recovery of the elevator 20 is successful by the recovery command in the case of recovery by the remote recovery system 100, the number of failure causes corresponding to the failure code and the elevator status code that are the bases of the recovery command is added to the total number of failure causes.

Similarly, when the failure code is 0001 indicating a failure in the

doors

13 and 26 and the B-time elevator status code "door not closed" is received, the main causes of the elevator status code for outputting the failure code "0001" and "door not closed" are a threshold garbage jam (failure main cause 1), a switch contact failure of the door opening/closing device (failure main cause 2), and another failure main cause 3. Therefore, the data 378 categorized as the cause of failure is configured such that when the elevator status codes of the failure code "0001" and "door not closed" are output, 100 pieces of data are output when the threshold trash jam is the cause (failure cause 1), 50 pieces of data are output when the switch contact failure of the door opening/closing device is the cause (failure cause 2), and 10 pieces of data are output when the other failure cause 3.

The same applies to the case where two elevator status codes, i.e., "door cannot be opened" and "door cannot be closed", are output together with the fault code "0001".

As shown in fig. 5 and 6, the restoration diagnosis database 380 stores a restoration diagnosis command group as a group of a restoration command and a restoration diagnosis command and a restoration rate (%) as a rate at which the failure of the elevator 20 has been restored by the execution of the restoration command in the order of the number of failure causes corresponding to the failure code and the elevator status code of the data 378 classified by the failure causes. 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, as shown in fig. 5, a data structure of the recovery diagnosis database 380 when the failure code is "0001" indicating a failure related to the

doors

13 and 26 and the elevator status code is "door cannot be opened" 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 formed by associating a recovery diagnosis command group a, which is a group of two commands including "gate circuit reset + door high torque opening/closing" as a recovery command and "door opening/closing diagnosis" as a recovery diagnosis command, with the number data of the failure factor 1 corresponding to the elevator state code "door not openable". When the switch contact failure of the door opening/closing device is a main cause (failure main cause 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 + door open/close retry" as a recovery command and "door open/close diagnosis" as a recovery diagnosis command, with the number data of the failure factor 2 corresponding to the elevator state code "door open disabled" at the recovery rate B% 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 formed by associating the restoration diagnosis command group C and the restoration rate C% with the number data of the failure main cause 3 corresponding to the elevator state code "door cannot be opened". In this way, the restoration diagnosis database 380 stores the failure code, the elevator status code, the failure factor corresponding to the failure code and the elevator status code, the number of the failure factors, the restoration diagnosis command group as the group of the restoration command and the restoration diagnosis, and the restoration rate in the database in association with each other. In the present embodiment, the recovery rate B% is a numerical value larger than the recovery rates a% and C%, 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, as shown in fig. 6, a data structure of the restoration diagnosis database 380 when the failure code indicates "0001" indicating a failure related to the

doors

13 and 26 and the elevator status code indicates "door not closed" 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 formed by associating a recovery diagnosis command group a, which is a group of two commands including "gate circuit reset + door high torque opening/closing" as a recovery command and "door opening/closing diagnosis" as a recovery diagnosis command, with the number data of failure main causes 1 corresponding to elevator state codes "door not closed" based on the recovery rate d% of recovery operation of the recovery command. When the switch contact failure of the door opening/closing device is a main cause (failure main cause 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 circuit reset + door open/close retry" as a recovery command and "door open/close diagnosis" as a recovery diagnosis command, with the number data of failure causes 2 corresponding to the elevator state code "door not closed" at a recovery rate e% 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 formed by associating the recovery diagnosis command group C and the recovery rate f% with the number data of the failure factor 3 corresponding to the elevator state code "door not closed". In this way, the restoration diagnosis database 380 stores the failure code, the elevator status code, the failure factor corresponding to the failure code and the elevator status code, the number of the failure factors, the restoration diagnosis command group as the group of the restoration command and the restoration diagnosis, and the restoration rate in the database in association with each other. In the present embodiment, the recovery rate e% is a numerical value larger than the recovery rates d% and f%, 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, 7, and 8. In the following description, the remote restoration operation when the elevator state codes of the fault code signal "0001" and "door cannot be opened" relating to the

doors

13 and 26 are transmitted first, and the remote restoration operation when the two elevator state codes of the fault code signal "0001" and "door cannot be opened" and "door cannot be closed" are transmitted will be described. Next, a remote restoration operation when the elevator state codes of the trouble code "0002" and "no start" related to the control circuit incorporated in the control panel 210 are transmitted, and a remote restoration operation when two elevator state codes of the trouble code "0002", no start "and" inter-floor stop "are 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.

First, a remote restoration operation when the elevator state code of the fault code signal "0001" and "door cannot be opened" is transmitted will be described. As shown in fig. 2 and step S101 of fig. 7, the control panel 210 of the elevator 20 outputs the trouble code "0001" and the elevator status code "door cannot be opened" associated with the

doors

13, 26 of the elevator 20 to the communication device 250. If the elevator 20 is not in trouble, the control panel 210 returns to the beginning of step S101 to continue monitoring of the elevator 20.

When a trouble code "0001" and an elevator status code of "door cannot be opened" are input from the control board 210, the communication device 250 transmits a trouble signal including the trouble code "0001" and the elevator status code of "door cannot be opened", 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 7. As shown in step S103 of fig. 2 and 7, when the communication device 320 of the remote monitoring center 310 receives the fault signal transmitted by the communication device 250 via the communication network 30, the fault code "0001" and the elevator status code "cannot be opened" included in the fault signal, and the management number, the fault occurrence date and time of the elevator 20 are output to the processing device 360. The information processing device 360 stores the inputted fault code "0001" and the elevator status code of "door cannot be opened" and 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. 7, 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 manufacture number of the elevator 20 from the elevator specification data 371 using the management number of the elevator 20, and confirms whether or not the elevator 20 is of a specification in which the recovery operation and the recovery diagnosis operation can be performed based on the recovery command and the recovery diagnosis command from the remote recovery device 300. When the elevator 20 is of a type that cannot perform the remote restoration operation, a signal notifying that the remote restoration is not possible is output to the remote monitoring center 310 as shown in step S124 of fig. 2 and 7.

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. 7. Then, as shown in step S124 of fig. 2 and 7, 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. If it is determined that there is a building in which there is a large number of false transmissions of the failure signal, 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 because of the high possibility of the false transmission of the failure signal, and determines no in step S104 in fig. 7. Then, as shown in step S124 of fig. 2 and 7, 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 8. Further, as shown in step S126 of fig. 2 and 8, 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. 7 that the elevator 20 is not remotely recoverable, in step S103, the information processing device 360 stores the input failure code "0001" and the elevator status code "door cannot be opened", the management number of the elevator 20, and the failure occurrence date and time in the failure history data 377 of the maintenance database 370. Then, the remote restoration action is ended 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. 7, 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. 7, and outputs a signal notifying the start of remote restoration to the remote monitoring center 310 in step S105 shown in fig. 7. 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.

When the remote restoration start is notified to the remote monitoring center 310 in step S105, the information processing device 360 proceeds to step S106 shown in fig. 7, and selects a restoration command and a restoration diagnosis command corresponding to the failure code "0001" and the elevator state code "door cannot be opened". As described above with reference to fig. 5 and 6, the restoration diagnosis database 380 is a database that associates a restoration diagnosis instruction group and a restoration rate with the data 378 categorized by the failure cause.

The data structure of the restoration diagnosis database 380 when the fault code is "0001" and the elevator status code is "door cannot be opened" 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: this data structure is obtained by associating a recovery diagnosis command group a, which is a group of two commands including "gate circuit reset + door high torque open/close" as a recovery command and "door open/close diagnosis" as a recovery diagnosis command, and the recovery rate a% of recovery operation based on the recovery command with the number data of the failure factor 1 corresponding to the elevator state code "door open impossible". When the switch contact failure of the door opening/closing device is a main cause (failure main cause 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 + door open/close retry" as a recovery command and "door open/close diagnosis" as a recovery diagnosis command, with the number data of the failure factor 2 corresponding to the elevator state code "door open disabled" at the recovery rate B% 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 formed by associating the recovery diagnosis command group C and the recovery rate C% with the number data of the failure factor 3 corresponding to the elevator state code "door cannot be opened". As described above, the recovery rate B% is a numerical value larger than the recovery rates a% and C%, and the recovery rate of the recovery diagnosis command group B is higher than that of the recovery diagnosis command groups a and C.

The information processing device 360 may select, as the restoration command, a command corresponding to the largest number of failure factors among the plurality of failure factors corresponding to the failure code "0001" and the elevator state code "door cannot be opened". Further, the information processing device 360 may select, as the restoration command, a command having the highest restoration rate among the plurality of commands corresponding to the fault code "0001" and the elevator state code "door cannot be opened". Then, the information processing apparatus 360 selects a recovery diagnosis instruction group in which the 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 device 360 selects, as a restoration command, a command corresponding to the largest number of failure factors among the plurality of failure factors corresponding to the failure code "0001" and the elevator state code "door cannot be opened". The information processing device 360 selects, with reference to the restoration diagnosis database 380 shown in fig. 5, a restoration diagnosis command group a composed of two commands, namely "gate reset + door opening/closing retry" as a restoration command for executing a restoration operation corresponding to a threshold garbage jam (failure factor 1) which is a failure factor causing the largest number of elevator state codes "no door opening" when the failure code "0001" and the elevator state code "no door opening" are present, and "door opening/closing diagnosis" as a restoration diagnosis command for executing a restoration diagnosis operation corresponding to the result of the restoration operation.

Next, a case will be described in which the information processing device 360 selects, as a restoration command, a command having the highest restoration rate among a plurality of commands corresponding to the failure code "0001" and the elevator state code "door cannot be opened". The information processing device 360 refers to the restoration diagnosis database 380 shown in fig. 5, and checks, as a restoration command, the restoration rate having the highest restoration rate corresponding to the failure code "0001" and the elevator state code "door open disabled". Then, the information processing device 360 selects a recovery diagnosis command group B composed of two commands, i.e., "gate reset + gate opening/closing retry" as a recovery command for executing a recovery operation corresponding to a cause of a switch contact failure (failure cause 2) which is the highest recovery rate B%, and "gate opening/closing diagnosis" as a recovery diagnosis command for executing a recovery diagnosis operation corresponding to a result of the recovery operation.

When the recovery diagnosis command group is selected, a selection method will be described in which the selection is based on the failure factor having the largest number of times corresponding to the failure code "0001" and the elevator status code "door cannot be opened", or the recovery rate of the recovery diagnosis command group corresponding to the failure code "0001" and the elevator status code "door cannot be opened". 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, the maximum value may be more prominent than the next numerical value. For example, in the case where the previous remote recovery failed, a different selection method from the previous one may be adopted. 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 command group a based on the failure factor 1 having the largest number of times corresponding to the failure code "0001" and the elevator state code "door cannot be opened".

When the restoration diagnosis instruction group a is selected in step S106 of fig. 7, 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. 7. As shown in fig. 2 and step S108 of fig. 7, 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. 7, 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 human 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 doors of the elevator will open and close. "etc.

When the broadcast is finished, the control panel 210 advances the process to step S110 in fig. 7, 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 a state in which it is detected that the

door

13 or 26 is not openable and closable, or is in a closed state or a half-open state, so that the

door

13 or 26 can be opened and closed. 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. 7. 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. 7, 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. 7. 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. 8, 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. 8. Further, as shown in step S117 and step S118 of fig. 8, 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. 7, the control panel 210 advances the process to step S119 in fig. 7. 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. 8, 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. 8, 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. 8. Further, as shown in step S123 of fig. 2 and 8, 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. 8, 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. 7, 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. 7, 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, the management number of the elevator 20 whose elevator status code "door cannot be opened", and 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 restoration, the information processing device 360 refers to the restoration diagnosis database 380 shown in fig. 5, and selects a restoration diagnosis command group a composed of two commands, i.e., "gate reset + gate opening/closing retry" as a restoration command for executing a restoration operation corresponding to the threshold garbage jam (failure cause 1) which is the failure cause for the largest number of pieces when the failure code "0001" and the elevator state code "cannot be opened" are the restoration commands, and "gate opening/closing diagnosis" as a restoration diagnosis command for executing the restoration diagnosis operation corresponding to the result of the restoration operation, and executes the restoration operation and the restoration diagnosis operation. Therefore, when the elevator 20 is successfully restored, the number of the failure factor 1 (threshold garbage jam) in the case where the failure code "0001" and the elevator status code "cannot be opened" in the restoration diagnosis database 380 is increased by 1, and the restoration rate is increased by the amount of the restoration success. In addition, the information processing device 360 increases the number of failure cause 1 pieces by 1 piece in the case where the failure code "0001" and the elevator status code "cannot be opened" of the data 378 categorized by failure causes shown in fig. 4.

On the other hand, when the determination signal indicating the failure of the recovery of the elevator 20 shown in step S119 in fig. 7 is input, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as described below. When a determination signal indicating that the elevator 20 has failed to recover is input as shown in step S119 in fig. 7, the information processing device 360 stores "remote recovery" in the item of the recovery method of the failure history data 377 shown in fig. 3, and stores "failure" in the item of the recovery determination result. In addition, the number of failure factors 1 (threshold garbage clogging) when the failure code "0001" and the elevator status code in the recovery diagnosis database 380 shown in fig. 5 are "door cannot be opened" is kept as it is, and the recovery rate is reduced by the amount of recovery failure. In addition, in the case of a failure in recovery, the number of failure factor 1 when the failure code "0001" and the elevator status code "cannot be opened" of the data 378 categorized by failure factor shown in fig. 4 are not changed.

In the above description, the case where the information processing device 360 selects the restoration diagnosis command group a based on the failure factor having the largest number of times corresponding to the failure code "0001" and the elevator status code "door cannot be opened" 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" and the elevator state code "door cannot be opened", the difference is that, instead of the recovery operation of "door high torque opening/closing", a recovery operation of "door opening/closing retry" is performed in which the opening/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 recovery of the elevator 20 is successful, the number of threshold garbage jams (failure cause 1) which are the failure causes having the largest number of pieces when the failure code "0001" and the elevator status code "cannot be opened" are increased. Therefore, when the remote restoration system 100 selects the restoration diagnosis command group based on the failure factor having the largest number of times corresponding to the failure code "0001" and the elevator status code "door cannot be opened", the information processing device 360 selects the restoration diagnosis command group a again when the failure code "0001" and the elevator status code "door cannot be opened" are input at the next remote restoration. Further, in the case where the recovery rate of the recovery diagnosis command group a is higher than that of the recovery diagnosis command group B, the information processing device 360 selects the recovery diagnosis command group a even in the case where the command having the highest recovery rate is selected as the recovery command among the plurality of commands corresponding to the failure code "0001" and the elevator state code "door cannot be opened".

On the other hand, when the remote recovery of the elevator 20 fails, the number of failure causes 1, which are the failure codes "0001" and the elevator status codes "cannot be opened" of the data 378 categorized by failure causes shown in fig. 4, is not changed, but the recovery rate of the recovery 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-causes ratio calculated as the ratio of the number of causes of failure 1 to the number of causes of failure 2, the information processing device 360 selects, as a recovery command, a command having the highest recovery rate among the plurality of commands corresponding to the failure code "0001" and the elevator state code "door cannot be opened". Therefore, when the failure code "0001" and the elevator status code "cannot be opened" are input at the next remote recovery, the information processing device 360 selects the recovery diagnosis command 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 of the failure primary cause 2, the number of pieces of which is greater 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 failure code "0001" and the elevator state code "door cannot be opened" and succeeds in the recovery of the elevator 20, the recovery rate of the recovery diagnosis command group B is increased. Therefore, in the next remote restoration, the restoration diagnostic instruction group B is selected in the same manner as in the previous remote restoration. On the other hand, if the recovery of the elevator 20 fails 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, when the information processing device 360 does not select the recovery diagnosis command group B in which recovery failed in the previous remote recovery, the recovery diagnosis command group a having the recovery rate lower than that of the recovery diagnosis command group B is selected, the recovery diagnosis command group a having the failure code "0001" and the elevator state code "cannot be opened".

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 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 gradually improve the reliability of restoration of the elevator 20.

In the embodiment described above, the operation of the remote restoration system 100 when the fault code "0001" indicating a fault related to the

doors

13 and 26 and the elevator status code "cannot be opened" are output from the control panel 210 is described.

Next, a case will be described in which two elevator status codes, i.e., a failure code "0001" and a "door cannot be opened" and a "door cannot be closed" are output from the control panel 210. In this case, the information processing device 360 selects a restoration diagnosis command group in the same manner as described above, based on the failure code "0001" and the elevator status code of the one having the larger number of times of reception together with the failure code "0001", with reference to the data 378 categorized by the failure factor shown in fig. 4.

For example, when the number of times a that the elevator status code of "door cannot be opened" is received is greater than the number of times B that the elevator status code of "door cannot be closed", the information processing device 360 selects the recovery diagnosis command group as follows. Referring to recovery diagnosis database 380 shown in fig. 5, information processing apparatus 360 selects a recovery diagnosis command group a or a recovery diagnosis command group B associated with failure factor 1 having the largest number of failure factors corresponding to failure codes "0001" and elevator state codes "door cannot be opened", and having the highest recovery rate of B% corresponding to failure codes "0001" and elevator state codes "door cannot be opened". The operation of the remote recovery system 100 after the recovery diagnosis command group a or the recovery diagnosis command group B is selected is the same as the case where the failure code "0001" and the elevator status code "door cannot be opened" are output from the control panel 210 described above.

When the number of times B of reception of the elevator status code "door not closed" is greater than the number of times a of reception of the elevator status code "door not opened", the information processing device 360 selects the recovery diagnosis command set as follows. Referring to the restoration diagnosis database 380 shown in fig. 6, the information processing device 360 selects a restoration diagnosis command group a or a restoration diagnosis command group B, in which the restoration diagnosis command group a is associated with the failure factor 1 having the largest number of failure factors corresponding to the failure code "0001" and the elevator state code "door not closed", and the restoration diagnosis command group B has the highest restoration rate e% corresponding to the failure code "0001" and the elevator state code "door not closed". The operation of the remote recovery system 100 after the recovery diagnosis command group a or the recovery diagnosis command group B is selected is the same as the case where the failure code "0001" and the elevator status code "door cannot be opened" are output from the control panel 210 as described above.

Next, a case will be described in which elevator status codes indicating a failure code "0002" and "no start" indicating a failure related to the control circuit are output. Note that the same operation as in the case where the fault code "0001" and the elevator status code "door cannot be opened" are output is not described.

When the trouble code is 0002 indicating a trouble related to the control circuit and the status code of the elevator is "no start", the technician 350 checks on the spot that the main cause of outputting the trouble code "0002" is a case where a relay mounted on the control panel 210 is defective (trouble cause 4), a case where a relay drive circuit driving the relay is defective (trouble cause 5), or another trouble cause 6. As shown in fig. 9, the data 378 categorized as the cause of failure is configured such that when the failure code is "0002" and the status code of the elevator is "unable to start", 100 pieces of data are acquired when the failure of the relay is the cause (failure cause 4), 50 pieces of data are acquired when the failure of the relay drive circuit is the cause (failure cause 5), and 10 pieces of data are acquired when the failure of the other failure causes 6. As described above, when the recovery is performed by the remote recovery system 100, and the recovery of the elevator 20 is successful in accordance with the recovery command, the number of failure causes corresponding to the failure code and the elevator status code that are the basis of the recovery command is added to the total number of failure causes.

As shown in fig. 10, a data structure of the recovery diagnosis database 380 when the failure code indicates "0002" indicating a failure related to the control circuit and the status code of the elevator indicates "no start" 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 "operation in each layer and high-speed operation diagnosis" as a recovery diagnosis command, and the number data of the failure factor 4 with the recovery rate g% of the recovery operation based on the recovery diagnosis command. Similarly, 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, and the number data of the causes of failure 5 with the recovery rate h% of the recovery operation based on the recovery diagnosis command. 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 i% are associated with the number data of the failure factor 6. In this way, the restoration diagnosis database 380 stores the failure code, the elevator status code, the failure factor corresponding to the failure code and the elevator status code, the number of the failure factors, the restoration diagnosis command group as the group of the restoration command and the restoration diagnosis, and the restoration rate in the database in association with each other. In addition, the recovery rate is highest in h% of the recovery diagnosis instruction group E.

When the trouble code is "0002" and the state code of the elevator is "unable to start", the information processing device 360 transmits the restoration diagnosis command group D to the control panel 210 when the information processing device 360 selects the restoration diagnosis command group D based on the failure factor having the largest number of times corresponding to the trouble code "0002" and the state code of the elevator "unable to start" shown in fig. 10. 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 trouble code "0002" and the elevator status code "no start", 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.

When two elevator state codes, i.e., "fault code" 0002 "and" no start "and" inter-floor stop ", are output from the control panel 210, the information processing device 360 refers to the data 378 categorized by the cause of the fault shown in fig. 9, and selects a recovery diagnosis command group based on the fault code" 0002 "and the elevator state code that has been received together with the fault code" 0002 "more frequently, as described above.

For example, when the number of times C of reception of the elevator status code "unable to start" is greater than the number of times D of reception of the elevator status code "stop between floors", the information processing device 360 selects the recovery diagnosis command group as follows. Referring to recovery diagnosis database 380 shown in fig. 10, information processing apparatus 360 selects recovery diagnosis command group D associated with failure factor 4 having the largest number of failure factors corresponding to failure codes "0002" and elevator state codes "unable to start" or recovery diagnosis command group E having the highest recovery rate of h% corresponding to failure codes "0002" and elevator state codes "unable to start". The operation of the remote restoration system 100 after the restoration diagnosis command group D or the restoration diagnosis command group E is selected is the same as the case where the failure code "0001" and the elevator status code "door cannot be opened" are output from the control panel 210 as described above.

When the number of times D of reception of the elevator status code of "floor stop" is greater than the number of times C of reception of the elevator status code of "floor stop", the information processing device 360 selects the recovery diagnosis command group as follows. With reference to recovery diagnosis database 380 shown in fig. 11, information processing apparatus 360 selects recovery diagnosis command group D associated with failure factor 4 having the largest number of failure factors corresponding to elevator status codes of failure codes "0002" and "inter-floor stoppage" or recovery diagnosis command group E having the highest recovery rate of k% corresponding to elevator status codes of failure codes "0002" and "inter-floor stoppage". The operation of the remote restoration system 100 after the restoration diagnosis command group D or the restoration diagnosis command group E is selected is the same as the case where the failure code "0001" and the elevator status code "door cannot be opened" are output from the control panel 210 as described above.

As described above, in the remote recovery system 100, when various failures 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 response to a command from the remote recovery device 300 disposed at a location remote 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 information processing apparatus 360 updates the failure history data 377, the data 378 categorized by the failure cause, and the recovery diagnosis database 380 based on the recovery determination result so as to be able to select a recovery diagnosis instruction group with a higher recovery possibility at the next remote recovery. Thus, 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 or 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, characterized by 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 fault signal including a fault code of the elevator and at least one elevator state code when detecting the fault of the elevator,

the remote recovery device

The system is provided with a recovery diagnosis database for associating the fault code, the elevator status code, the number of failure causes corresponding to the fault code and the elevator status code, a recovery diagnosis command group, and a recovery rate which is a rate at which the elevator is recovered by a recovery command, wherein the recovery diagnosis command group is a group of two commands, namely a recovery command and a recovery diagnosis command corresponding to the recovery command,

upon receipt of the said fault signal, the said fault signal is transmitted,

when the elevator status code received from the elevator control device is one, referring to the recovery diagnosis database, 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 the failure code and the elevator status 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 and the elevator status code included in the failure signal,

when the elevator status code received from the elevator control device is plural, referring to the recovery diagnosis database, a recovery diagnosis command group corresponding to a failure factor having a large number of failure factors from among a plurality of failure factors corresponding to the failure code included in the failure signal and the elevator status code having a large number of times of reception together with the failure code, or a recovery diagnosis command group including a recovery command having a high recovery rate from among a plurality of recovery commands corresponding to the failure code included in the failure signal and the elevator status code having a large number of times of reception together with the failure code is selected,

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

the elevator control device executes the recovery action of the elevator and the recovery diagnosis action corresponding to the result of the recovery action in sequence,

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 recovery device

Selecting, when the elevator status code received from the elevator control device is one, a restoration diagnosis command group corresponding to a failure factor having the largest number of items among a plurality of failure factors corresponding to the failure code and the elevator status code, or a restoration diagnosis command group including a restoration command having the highest restoration rate among a plurality of restoration commands corresponding to the failure code and the elevator status code, with reference to the restoration diagnosis database,

when the elevator status code received from the elevator control device is plural, the recovery diagnosis database is referred to, and a recovery diagnosis command group corresponding to a failure factor having the largest number of items among a plurality of failure factors corresponding to the failure code and the elevator status code having the largest number of times of reception together with the failure code, or a recovery diagnosis command group including a recovery command having the highest recovery rate among a plurality of recovery commands corresponding to the failure code and the elevator status code having the largest number of times of reception together with the failure code is selected.

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 and the elevator status 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.

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 and the elevator status 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.