KR102236152B1 - Elevator remote monitoring system - Google Patents

Abstract

The elevator remote monitoring system includes an elevator control device 200 that controls driving of the elevator 20, and a remote control device 300 that communicates with the elevator control device 200 and causes the elevator 20 to perform a failure response operation. It is equipped with. When the elevator control device 200 detects a failure of the equipment included in the elevator 20, it transmits a failure signal including a failure code for identifying the failure equipment. The remote operation device 300 transmits a power cut-off command to the faulty device when the cause of the fault of the faulty device is an ON fault in which an ON signal is continuously output. Further, the remote control device 300 monitors the input signal from the faulty device to the elevator control device 200 after the transmission of the power cut-off command, and when an ON signal is detected, the elevator control device 200 is provided with an extension from the faulty device. It is determined that the connection between the connection terminal 420 connected to and the input terminal 418 of the elevator control device 200 to be connected is defective. Thereby, when an ON failure occurs, it becomes possible to determine whether the cause is a failure of the device of the signal output source or a poor connection between the connection terminal 420 and the input terminal 418.

Description

Elevator remote monitoring system

The present invention relates to a system for remote monitoring an elevator.

BACKGROUND ART Conventionally, a control panel (control device) that controls an elevator drive is equipped with a self-diagnosis function that checks the presence or absence of a failure of the equipment constituting the elevator and the control panel itself.

For example, in Patent Document 1, a self-diagnosis function is added to the micom control unit of an elevator, and it is determined whether or not the cause of the failure of the elevator lies with the micom control unit itself. Further, in Patent Document 2, when the serial communication between the elevator control panel and the elevator monitoring control device is cut off due to power cut off of the elevator control panel, etc., the serial communication is down by using a soundness check.

Japanese Unexamined Patent Application Publication No. 2001-058769 Japanese Unexamined Patent Application Publication No. 2009-173411

However, as one of the failure modes of the elevator components, there is a so-called ON failure in which an ON signal is continuously output. As the cause of the ion failure, there are cases due to a failure of a device of a signal output source, and a connection failure between a connection terminal extended from the device and an input terminal of an interface board of an elevator control panel. An object of the present invention is to provide an elevator remote monitoring system capable of determining which of the above causes is caused when an ON failure is detected.

The present invention relates to an elevator remote monitoring system. The system includes an elevator control device that performs drive control of an elevator, and a remote control device that communicates with the elevator control device and causes the elevator to perform a failure response operation. When the elevator control device detects a failure of the equipment included in the elevator, it transmits a failure signal including a failure code for identifying the failure equipment. The remote operation device transmits a power cut-off command to the faulty device when the cause of the fault of the faulty device is an ON fault in which an ON signal is continuously outputted. In addition, the elevator control device monitors the input signal from the faulty device to the elevator control device after the transmission of the power cut-off command, and when an ON signal is detected, the elevator control device extends from the faulty device and connects to the elevator control device. It is determined that the connection of the input terminal of the elevator control device to be connected is defective.

In addition, in the above invention, the remote control device monitors the input signal from the faulty device to the elevator control device after the power cut command is transmitted, and when the ON signal is not detected for a predetermined period, the faulty device itself fails. You may decide.

In addition, in the above invention, the remote operation device transmits a recovery command including an identification symbol of the elevator and a failed device to be repaired to a management device that manages an operator performing restoration of the elevator, and determines connection failure. At least one of the connected terminal and the input terminal, or a procurement instruction for replacement parts of the faulty device for which the fault was determined may be transmitted.

Further, in the above invention, the remote control device refers to an input signal from the malfunctioning device to the elevator control device and an input signal from a device included in an elevator other than the malfunctioning device to the elevator control device when receiving the malfunction signal. Thus, it may be determined whether or not the cause of the failure of the malfunctioning device is an on-off failure.

According to the present invention, when an ON failure occurs, it is possible to determine whether the cause is a failure of a device of a signal output source or a poor connection between a connection terminal and an input terminal.

1 is a system diagram showing the configuration of a remote recovery system for an elevator failure according to an embodiment of the present invention.
Fig. 2 is a functional block diagram of an elevator failure remote recovery system according to an embodiment of the present invention.
Fig. 3 is a diagram showing the configuration of the step database shown in Fig. 2;
FIG. 4 is a diagram showing the configuration of the recovery diagnosis database shown in FIG. 2.
5 is a flowchart showing the operation of the remote recovery system for an elevator failure according to the embodiment of the present invention.
6 is a flowchart showing the operation of the remote recovery system for an elevator failure according to the embodiment of the present invention.
7 is a diagram showing the configuration of another recovery diagnosis database.
8 is a diagram showing the configuration of another recovery diagnosis database.
9 is a diagram for explaining the structure of an elevator.
Fig. 10 is a functional block diagram of an elevator failure remote recovery system according to an embodiment of the present invention.
11 is a diagram illustrating a flow of narrowing the range of a cause of a failure in the embodiment of the present invention.

Hereinafter, the elevator failure remote recovery system 100 of 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 controls driving of an elevator 20 disposed in a hoistway 11 of a building 10, an elevator control device 200, and A remote recovery device 300 is provided that communicates and causes the elevator 20 to perform a fault recovery operation. The elevator 20 that causes the remote recovery device 300 to perform the recovery operation may be one or a plurality of elevators. In addition, when there are multiple elevators 20, each elevator 20 may be installed in the same building 10, or may be installed in another building 10.

The elevator control device 200 includes a control panel 210 and a communication device 250 for controlling driving of the elevator 20. The control panel 210 is a computer including a CPU and a memory therein. In addition, the remote recovery device 300 includes a remote monitoring center 310 including a communication device 320 and a monitoring panel 330, an information processing device 360, a maintenance database 370, and a recovery diagnosis database 380. ). The remote monitoring center 310, the information processing device 360, the maintenance database 370, and the recovery diagnosis database 380 may be installed in the same place, or may be installed in different places to connect 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. In addition, the communication device 250 receives a command for the control panel 210 selected by the information processing device 360 with reference to the recovery diagnosis database 380 through the communication device 320 and the communication network 30, and Print to (210). The communication device 320 receives a signal from the control panel 210 through the communication device 250 and the communication network 30, and outputs the signal to the information processing device 360. In addition, the communication device 320 transmits a command for the control panel 210 selected by the information processing device 360 to the communication network 30. The communication devices 250 and 320 may be devices that perform wireless communication or devices that perform wired communication. Further, the communication network 30 may be an Internet communication network or a telephone line network.

The remote monitoring center 310 transfers data to and from the information processing device 360, and a monitoring panel 330 that monitors the operation status and failure status of the elevator 20 is disposed. In the monitoring panel 330, a display 331 on which the operation status of the elevator 20, a failure status, a notification from the information processing device 360, etc. are displayed, and a switch 332 for operating the display of the display 331. It is prepared. Further, the monitoring panel 330 is provided with a telephone 333 that communicates with the service center 340 via the communication network 35.

The maintenance database 370 stores specifications of the elevator 20 and historical data such as inspection, maintenance, and repair. The recovery diagnosis database 380 stores data such as a plurality of failure factors corresponding to the failure codes output from the control panel 210 of the elevator 20, the number of cases, and recovery rates.

The information processing device 360 is a computer including a CPU and a memory therein. To the information processing device 360, a failure signal output from the control panel 210 when a failure occurs in the elevator 20 is input through the communication devices 250 and 320 and the communication network 30. When a fault signal is input, the information processing device 360 refers to data in the recovery diagnostic database 380 and selects a recovery command and a recovery diagnostic command corresponding to the fault code included in the fault signal. The selected recovery command and recovery diagnostic command are input to the control panel 210 through the communication devices 250 and 320 and the communication network 30, and cause the elevator 20 to perform a recovery operation and a recovery diagnosis operation.

As shown in Fig. 2, in the maintenance database 370, elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, and modulation history data 375 , Repair work history data 376, failure history data 377, failure factor data 378, and operation history data 379 are stored.

Hereinafter, referring to FIG. 3, elevator specification data 371, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data ( 376), the failure history data 377, and the data structure of the failure factor data 378 will be described. In addition, the driving history data 379 will be described later.

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

The inspection history data 372 has a data structure for storing data of the management number of the elevator 20, the date and time of the inspection performed by the technician 350 locally, inspection items, and inspection results. The inspection column is, for example, an inspection of the open/closed state of the doors 13 and 26 of the elevator 20 shown in FIG. 1, and an inspection of the stop position of each floor (floor 12 and the floor of the car 22 ( 27), an inspection of the wire 23, an inspection of a running speed, and the like. In addition, as a result of the inspection, whether or not an abnormality was found as a result of the inspection, an abnormality was not found, but maintenance work such as cleaning or the like is required, or parts replacement is required soon. In addition, in Fig. 1, reference numeral 25 denotes a weight.

The maintenance work history data 373 has a database structure for storing the management number of the elevator 20, the maintenance work date and time, maintenance work items, and maintenance work results of the elevator 20 performed by the technician 350 on site. Maintenance work items include, for example, inspection of the operating state of the elevator 20, cleaning of the door rail of the elevator 20, lubrication to the drive device 24 shown in Fig. 1, adjustment of the brake of the elevator 20, etc. to be. In the maintenance work result, the results of inspection, cleaning, refueling, adjustment, etc. are input.

The remote inspection history data 374 has a data structure for storing a management number of the elevator 20, a remote inspection date and time, a remote inspection item, and a remote inspection result. The remote inspection of the elevator 20 is performed by the control panel 210 of the elevator 20 according to a preset schedule, such as once a month, for example. The control panel 210 of the elevator 20 moves the 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 there is any abnormality in the operation performance (acceleration, presence or absence of abnormal noise), door opening and closing, brakes, emergency batteries, and external communication devices. The inspection result is stored in the remote inspection history data 374 from the information processing device 360 through the communication devices 250 and 320 and the communication network 30. Further, the remote inspection may be performed in response to an instruction from the remote monitoring center 310.

The modulation history data 375 has a data structure for storing a management number of the elevator 20, a modulation occurrence date and time, a modulation item, and a modulation response result. The modulation of the elevator 20 refers to a case where the result of inspection, inspection, maintenance work, or remote inspection by the technician 350 does not reach an abnormal value, but is changed from the normal value of the elevator 20 . For example, as a result of the inspection of the running speed, it is within the allowable value, but when the difference from the value of the inspection result up to the present of the elevator 20 or the previous inspection is large, among the modulation items, " Travel speed”.

The repair construction history data 376 has a data structure storing the management number of the elevator 20, the repair construction date and time, the repair construction item, and the repair construction result. The repair work is a repair work by replacement of parts such as replacement of the wire 23, replacement of a hanger roller, replacement of a brake pad, replacement of a control board, and replacement of a relay. Therefore, in the item of repair work, ``replacement of wires'' and ``hanger rollers Names of replacement parts such as "replacement" and "brake pad replacement" are input, and items such as "repair work end" and "repair required" are input in the column of the repair work result.

The failure history data 377 has a data structure for storing the management number of the elevator 20, the date and time of failure, a failure code, a restoration method, and a restoration determination result. The failure code is a code that is output from the control panel 210 when a failure occurs in the elevator 20 or a combination of numbers and English characters. The types of fault codes are, for example, about 1000 types. In the item of the restoration method, for example, when the technician 350 is dispatched to perform inspection, inspection, and restoration, it is input such as "engineer dispatch". In addition, in the item of the recovery method, for example, in the case of recovery by the remote recovery system 100, "remote recovery" is input. In the item of the restoration determination result, when the elevator 20 is restored and the operation is resumed, it is input as "recovery". In addition, in the case where the elevator 20 fails to recover, the item of the recovery determination result is input as "failure".

The failure factor data 378 is the number of failure factors corresponding to the failure code based on the result of inspection and inspection by the technician 350 dispatching to the site when a failure code is output from the control panel 210, and, When the remote recovery system 100 recovers, the total number of the number of failure factors corresponding to the failure code is stored. For example, if the failure code is 0001 indicating a failure with respect to the doors 13 and 26, as a result of a local inspection by the technician 350, the cause of the output of the failure code ``0001'' is the accumulation of garbage on the door sill ( Failure factor 1), contact failure of the switch of the door opening/closing device (failure factor 2), or other failure factor 3. Therefore, in the case of the failure factor data, when the failure code "0001" is output, 100 cases are the cause of garbage accumulation on the door sill (failure factor 1), and the contact failure of the switch of the door opening and closing device is the factor (failure factor 2). The data structure has the same data structure as 50 cases in case of, and 10 cases in other cases of failure factor 3, and the data is arranged so that the number of cases is increased in the order of the number of cases. In the case of restoration by the remote restoration system 100, the number of failure factors corresponding to the failure code that is the basis of the restoration instruction when the elevator 20 is successfully restored by the restoration command is the total number of failure factors. Is added to.

As shown in Fig. 4, the restoration diagnosis database 380 includes a set of restoration diagnosis instructions, which is a set of restoration instructions and restoration diagnosis instructions, in the order in which the number of failure factors of the failure factor-specific data 378 is large, and the restoration instruction set. The recovery rate (%), which is the rate at which the failure of the elevator 20 is recovered by the execution of, is stored. The recovery diagnostic database 380 is a database obtained by linking the recovery diagnostic command set and the recovery rate to the data 378 for each failure factor described above.

Hereinafter, the data structure of the recovery diagnosis database 380 in the case where the failure code is "0001" indicating a failure with respect to the doors 13 and 26 will be described. When the accumulation of trash on the door sill is a factor (failure factor 1), the recovery diagnostic data is included in the number of failure factor 1 data as a recovery command ``door circuit reset + door high torque open/close'', and recovery diagnostic command ``doors''. A data structure in which a recovery diagnosis command set A, which is a set of two commands of “open/close diagnosis”, and a recovery rate x% by a recovery operation in accordance with the recovery command are linked. Similarly, when the contact failure of the switch of the door opening/closing device is the cause (failure factor 2), the recovery diagnostic data is included in the number of failure factor 2 data as the recovery command ``door circuit reset + door open/close retry'', and the recovery diagnostic command is `` A data structure in which a recovery diagnosis command set B, which is a set of two commands of “door opening/closing diagnosis”, and a recovery rate y% of the recovery operation by this recovery command are linked. Similarly, in the case of the failure factor 3, the recovery diagnosis data has a data structure in which the recovery diagnosis command set C and the recovery rate z% are linked to the number of failure factors 3 data. In this way, the recovery diagnostic database 380 associates a fault code, a fault factor corresponding to the fault code, the number of fault factors, a recovery diagnostic command set, which is a set of recovery commands and recovery diagnostic commands, and a recovery rate. It was stored in a database. Further, in the present embodiment, the recovery rate y% is a value larger than the recovery rates x% and z%, and the recovery diagnosis command set B has a recovery rate higher than that of the recovery diagnosis command set A and the recovery diagnosis command set C.

Hereinafter, the operation of the remote recovery system 100 when a failure signal is transmitted from the elevator 20 will be described with reference to FIGS. 2 and 5 and 6. In the following description, first, a remote recovery operation when a fault code signal "0001" related to the doors 13 and 26 is transmitted will be described. Next, a remote recovery operation when a fault code "0002" related to the control circuit installed in the control panel 210 is transmitted will be described. Next, a description will be given of a remote recovery operation when a fault code "0003" related to the brake in the drive device 24 is transmitted. In addition, the remote recovery system 100 can respond even when a failure code related to a part other than the above is transmitted.

2 and 5, the control panel 210 of the elevator 20 determines whether or not a failure has occurred in the elevator 20. In the event of a failure related to the doors 13 and 26 of the elevator 20, for example, a door opening/closing failure, the control panel 210 displays the date and time of the failure and a failure code indicating that the failure is a failure related to the door. "0001" is output to the communication device 250. When no failure has occurred in the elevator 20, the control panel 210 returns to the beginning of step S101 and continues monitoring the elevator 20.

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

Then, the information processing device 360 determines whether or not the elevator 20 in which the failure has occurred can be remotely restored, as shown in step S104 of FIG. 5. As shown in FIGS. 2 and 3, the information processing device 360 acquires the model, manufacturing date, and serial number of the elevator 20 from the elevator specification data 371 using the management number of the elevator 20. Based on the acquired specification data, the information processing device 360 confirms whether the elevator 20 is a specification capable of a recovery operation or a recovery diagnosis operation according to a recovery command from the remote recovery device 300 or a recovery diagnosis command. do. When the elevator 20 is a model in which the remote restoration operation is not possible, the information processing device 360 is a signal for notifying the remote monitoring center 310 that the remote restoration is impossible, as shown in step S124 of FIGS. 2 and 5 Prints.

In addition, the information processing device 360, as shown in Fig. 2, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history With reference to the data 376 and the failure history data 377, confirm the following (a) to (f).

(a) The elevator 20 has been instructed to correct the adjustment in the recent inspection.

(b) The possibility of misregulation is predicted because the elevator 20 has a maintenance plan recently or on the same day.

(c) There was an abnormal diagnosis result in the elevator 20 due to remote inspection.

(d) Recently, there has been an occurrence of modulation in the elevator 20.

(e) The elevator 20 has recently undergone repair work.

(f) The elevator 20 recently sent a fault signal according to the same fault code "0001".

And, in the case of any one or more of the above (a) to (f), the information processing device 360 dispatches the technician 350 to the building 10 rather than the recovery by the remote recovery system 100. It is determined that it is better, and it is determined as NO in step S104 of FIG. 5. Then, as shown in step S124 of FIGS. 2 and 5, the information processing device 360 outputs a notification that remote restoration is impossible to the remote monitoring center 310.

In addition, the information processing device 360 uses the management number of the elevator 20 to determine from the elevator specification data 371 and the failure history data 377 whether the building 10 is a building with many false signals of failure. Confirm. In such a case, the information processing device 360 determines that it is better to dispatch the technician 350 to the building 10 than to recover by the remote recovery system 100, since there is a high possibility of erroneous transmission of a fault signal. , It is determined as NO in step S104 of FIG. 5. Then, the information processing device 360 outputs a notification that the remote restoration is impossible to the remote monitoring center 310 as shown in step S124 of FIGS. 2 and 5.

A notification of the inability to recover remotely output from the information processing device 360 to the remote monitoring center 310 is displayed on the display 331 of the remote monitoring center 310 as shown in FIG. 2. When the monitor 334 confirms this display, as shown in step S125 of Figs. 2 and 6, the monitor 334 makes an instruction of stopping the operation of the elevator 20 and an announcement operation. Then, the supervisor 334 dispatches the technician 350 to the building 10 to the service center 340 near the building 10 as shown in step S126 in FIGS. 2 and 6 over the telephone 333 Instruct them to do it.

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

On the other hand, in step S104 shown in FIG. 5, as shown in FIG. 2, the information processing device 360, inspection history data 372, maintenance work history data 373, remote inspection history data 374, and modulation With reference to the history data 375, the repair work history data 376, and the failure history data 377, the following (g)-(n) is confirmed.

(g) The elevator 20 is a specification capable of performing a recovery operation and a recovery diagnosis operation by a recovery command from the remote recovery device 300 and a recovery diagnosis command.

(h) Elevator 20 was not instructed to correct the adjustment in the recent inspection.

(i) The possibility of misadjustment is not predicted because the elevator 20 does not have a maintenance plan on the latest or the same day.

(j) There is no abnormal diagnosis result in the elevator 20 due to remote inspection.

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

(l) The elevator 20 has not been repaired recently.

(m) The elevator 20 has not recently sent a fault signal according to the same fault code "0001".

(n) Building (10) is not a building with many false signals.

And, in the case of satisfying all the requirements of the above (g) to (n), the information processing device 360 determines YES in step S104 shown in FIG. 5, and remotely to the remote monitoring center 310 in step S105. Notify the start of restoration. This signal is displayed on the display 331 of the remote monitoring center 310. Thereby, the monitor 334 of the remote monitoring center 310 is notified that the remote restoration of the elevator 20 is started.

When the information processing device 360 notifies the remote monitoring center 310 of the start of remote restoration in step S105, the process proceeds to step S106 shown in FIG. 5 to issue a restoration instruction and a restoration diagnosis instruction corresponding to the failure code "0001". Choose. Previously, as described with reference to FIG. 4, the recovery diagnosis database 380 is a database in which the recovery diagnosis command set and the recovery rate are linked to the data 378 for each failure factor. Hereinafter, the data structure of the recovery diagnosis database 380 in the case where the failure code is "0001" indicating a failure with respect to the doors 13 and 26 will be briefly described again. When the accumulation of trash on the door sill is a factor (failure factor 1), the recovery diagnostic data is the number of failure factor 1 data, ``door circuit reset + door high torque opening'' as a recovery command, and ``door opening/closing diagnosis'' as a recovery diagnostic command. A data structure in which a recovery diagnosis command set A, which is a set of two commands of "", is linked with a recovery rate x% by the recovery operation according to the recovery command. Similarly, if the contact failure of the switch of the door opening/closing device is a factor (failure factor 2), the recovery diagnostic data is included in the number of failure factor 2 data as a recovery command, ``door circuit reset + door open/close retry,'' and a recovery diagnostic command. As an example, there is a data structure in which a recovery diagnosis command set B, which is a set of two commands of "door opening/closing diagnosis", is linked with a recovery rate y% of the recovery operation by this recovery command. Similarly, in the case of the failure factor 3, the recovery diagnosis data has a data structure in which the recovery diagnosis command set C and the recovery rate z% are linked to the number of failure factors 3 data. Further, as described above, the recovery rate y% is a value larger than the recovery rates x% and z%, and the recovery diagnosis command set B has a recovery rate higher than that of the recovery diagnosis command set A and the recovery diagnosis command set C.

The information processing device 360 may select, as a recovery command, an instruction corresponding to the failure factor with the largest number of failure factors among a plurality of failure factors corresponding to the failure code "0001". Further, the information processing device 360 may select, as the recovery command, the command having the highest recovery rate among a plurality of commands corresponding to the failure code "0001". Then, the information processing device 360 selects a recovery diagnostic command set in which the recovery diagnostic command corresponding to the selected recovery command is set with the selected recovery command.

First, a description will be given of a case where the information processing device 360 selects, as a recovery command, a command corresponding to the failure factor with the largest number of failure factors corresponding to the failure code "0001". The information processing device 360 refers to the recovery diagnosis database 380 and checks the failure factor with the largest number of cases in the case of the failure code "0001" as a recovery command. In addition, the information processing device 360 includes a "door circuit reset + door high torque open/close", which is a recovery command that executes a recovery operation corresponding to the accumulation of garbage on the door sill (failure factor 1), which is the most frequent failure factor. A recovery diagnostic command set A consisting of two "door opening/closing diagnostics", which is a recovery diagnostic command for executing a recovery diagnostic operation corresponding to the result of the recovery operation, is selected.

Next, a description will be given of a case where the information processing device 360 selects, as the recovery command, the command having the highest recovery rate among the plurality of commands corresponding to the failure code "0001". The information processing device 360 refers to the recovery diagnosis database 380 and checks the recovery rate with the highest recovery rate corresponding to the failure code "0001" as a recovery command. Further, the information processing device 360 includes a "door circuit reset + door open/close retry", which is a recovery command for executing a recovery operation corresponding to the cause (failure factor 2) due to the contact failure of the switch having the highest recovery rate y%. A recovery diagnostic command set B consisting of two "door opening/closing diagnostics", which is a recovery diagnostic command for executing a recovery diagnostic operation corresponding to the result of the recovery operation, is selected.

When selecting the recovery diagnosis command set, the selection of whether it is based on the failure factor with the largest number of cases corresponding to the failure code "0001" or the recovery rate of the recovery diagnosis command set corresponding to the failure code "0001" is as follows. You may do it. For example, of the ratio between the maximum number of cases and the next number (the number of cases) and the ratio of the maximum recovery rate and the next recovery rate (recovery rate ratio), the side with a larger ratio, that is, the side where the maximum value protrudes from the next value. You can choose. Further, for example, in the case of failure in the previous remote recovery, a selection method different from the previous one may be taken. In addition, the selection of the restoration diagnosis command set may be determined by, for example, the model and specifications of the elevator 20.

In the following description, a case in which the information processing device 360 selects the recovery diagnosis command set A based on the failure factor 1 with the largest number corresponding to the failure code "0001" will be described.

When the restoration diagnosis command set A is selected in step S106 in FIG. 5, the information processing device 360 transmits the selected restoration diagnosis command set A from the communication device 320 as shown in steps S107 in FIGS. 2 and 5. do. As shown in step S108 of FIGS. 2 and 5, when the communication device 250 receives the recovery diagnostic command set A from the communication device 320, it outputs the recovery command and the recovery diagnostic command to the control panel 210.

The control panel 210 is, first, that the elevator 20 is stopped, a weight sensor of the car 22, a camera in the car 22, and the car 22 as shown in step S109 of FIG. 5. It is confirmed that there are no passengers in the car 22 from the output of the inside person sensor or the like. Then, when the control panel 210 confirms that the elevator 20 is stopped and that there are no passengers in the car 22, the speaker of the telephone apparatus installed in the car 22 says, ``Remote recovery is started from now on. Do it. The elevator door opens and closes.”

When the announcement ends, the control panel 210 proceeds to step S110 in FIG. 5 and performs a recovery operation according to the recovery command. Since the currently received recovery command is ``door circuit reset + door high torque open/close,'' which is a recovery command that executes a recovery operation corresponding to the accumulation of garbage on the door sill (failure factor 1), the control panel 210 has priority. , Reset the door circuit of the control panel 210. In this operation, the door circuit resets the state in which the door 13 or the door 26 is detecting an open (or closed) state, or a half-open (or half-closed) state as the door 13 or the door 26 is incapable of opening and closing, and the door 13 Alternatively, it is an operation of allowing the door 26 to be opened and closed. Next, the control panel 210 increases the torque of the drive motor of the door 13 and the door 26 by 20 to 30% higher than usual to open and close the door 13 and the door 26 with a greater force than usual. This operation is an operation of moving the garbage accumulated on the door sill from the sill, and restoring the opening/closing operation of the doors 13 and 26 to a normal state. In order to check whether the trash accumulated on the threshold of the doors 13 and 26 is moved by the above operation and the opening and closing of the doors 13 and 26 is restored, the control panel 210 is shown in step S111 of FIG. As described above, "door opening/closing diagnosis", which is a restoration diagnosis command, is executed. The control panel 210 opens and closes the door 13 and the door 26 with a normal torque, and whether the opening and closing operation is performed at a predetermined opening and closing time, and the current of the driving motor of the door 13 and the door 26 is normal. Check if it is larger than. Next, the control panel 210 opens and closes the door 13 and the door 26 by lowering the torque of the drive motor by about 20% lower than usual, and checks whether there is any abnormality in the opening and closing time.

Then, when the control panel 210 determines that the doors 13 and 26 have been restored to the normal state by the restoration diagnosis operation as shown in step S112 in FIG. 5, the control panel 210 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 been restored. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S114 in FIG. 6, and the determination result is input to the information processing device 360. In addition, the determination result is notified to the remote monitoring center 310 from the information processing device 360 as shown in step S115 of FIG. 6, and the result is displayed on the display 331 of the remote monitoring center 310. . When the monitor 334 of the remote monitoring center 310 confirms this display, as shown in step S116 of FIG. 6, the elevator 20 resumes operation and makes an announcement operation. Further, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in steps S117 and S118 in FIG. 6.

On the other hand, when the control panel 210 determines NO in step S112 of FIG. 5 as a result of the recovery diagnosis operation, it proceeds to step S119 of FIG. 5. In step S119, the control panel 210 outputs a determination result signal indicating that the restoration of the elevator 20 has failed. This signal is transmitted from the communication device 250 to the communication network 30. The transmitted determination result signal is received by the communication device 320 as shown in step S120 in FIG. 6, and the determination result is input to the information processing device 360. In addition, the determination result is notified to the remote monitoring center 310 from the information processing device 360 as shown in step S121 in FIG. 6, and the result is displayed on the display 331 of the remote monitoring center 310. . If the monitor 334 confirms this display, as shown in step S122 of FIG. 6, the monitor 334 makes an instruction of stopping the operation of the elevator 20 and an announcement operation. In addition, the supervisor 334 dispatches the technician 350 to the building 10 to the service center 340 near the building 10 as shown in step S123 in FIGS. 2 and 6 over the telephone 333 Instruct them to do it. Further, the information processing device 360 updates the maintenance database 370 and the recovery diagnosis database 380 as shown in steps S117 and S118 in FIG. 6.

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

When a determination signal indicating that the elevator 20 has been restored as shown in step S113 of Fig. 5 is input, the information processing device 360 returns "remote recovery" to the item of the recovery method of the failure history data 377. "Recovery" is stored in the item of the judgment result. As described above, when the communication device 320 receives a failure signal, the information processing device 360 receives the failure code "0001" input from the communication device 320, the control number of the elevator 20, and the failure occurs. The date and time are stored in the failure history data 377 of the maintenance database 370. Accordingly, all items of the failure history data 377 are updated by the current recovery method and the storage of the recovery determination result.

In addition, in this remote recovery, the information processing device 360 refers to the recovery diagnosis database 380, and in the case of a failure code "0001" as a recovery command, garbage accumulation on the door sill, which is the most frequent failure factor ( ``Door circuit reset + door open/close retry'', which is a restoration command that executes a restoration operation corresponding to the failure factor 1), and ``door open/close diagnosis,” which is a restoration diagnosis command that executes a restoration diagnosis operation corresponding to the result of this restoration operation. The recovery diagnosis command set A, which consists of two of is selected, and the recovery operation and the recovery diagnosis operation are executed. Therefore, in the case of successful restoration of the elevator 20, the number of failure codes "0001" and failure factor 1 (the accumulation of trash on the door sill) in the restoration diagnosis database 380 is increased by one, and the number of cases in which the restoration is successful is increased. Increase the recovery rate. Further, the information processing device 360 increases the number of failure factors 1 of the failure code "0001" of the data 378 for each failure factor by one.

On the other hand, when a determination signal indicating that the restoration of the elevator 20 has failed as shown in step S119 of FIG. 5 is input, the information processing device 360, as follows, the maintenance database 370 and the restoration diagnosis database ( 380). When a determination signal indicating that the restoration of the elevator 20 has failed as shown in step S119 of FIG. 5 is input, the information processing device 360 returns "remote restoration" to the item of the restoration method of the failure history data 377. , "Failure" is stored in the item of the recovery determination result. In addition, the number of failure codes "0001" and failure factor 1 (garbage accumulation on the door sill) in the restoration diagnosis database 380 are kept as it is, and the restoration rate is reduced by the number of failures in restoration. In addition, when recovery fails, the number of failure factors 1 of the failure code "0001" of the failure factor data 378 is not changed.

In the above description, the case where the information processing device 360 selects the recovery diagnosis command set A based on the most numerous failure factors corresponding to the failure code "0001" has been described. When the information processing device 360 selects the recovery diagnostic command set B based on the recovery rate of the recovery diagnostic command set corresponding to the fault code "0001", instead of the recovery operation of "door high torque opening and closing", the normal torque The difference is that the restoration operation of the "door open/close retry" in which the open/close operation of the furnace doors 13 and 26 is performed again is performed. Other operations are the same as those in the case where the recovery diagnosis command set A is selected.

If the remote restoration of the elevator 20 is successful, the number of garbage accumulation on the door sill (failure factor 1), which was the most frequent failure factor in the case of the failure code "0001" until then, increases. For this reason, when the remote recovery system 100 selects the recovery diagnosis command set based on the number of fault factors corresponding to the fault code "0001", the fault code "0001" was input at the next remote recovery. At this time, the information processing device 360 selects the restoration diagnosis command set A again. In addition, when the recovery rate of the recovery diagnostic command set A is higher than the recovery rate of the recovery diagnostic command set B, the information processing device 360 returns the command with the highest recovery rate among the plurality of commands corresponding to the failure code "0001". Even in the case of selecting as, the recovery diagnosis command set A is selected.

On the other hand, if the remote restoration of the elevator 20 fails, the number of failure factors 1 of the failure code "0001" of the failure factor data 378 is not changed, but the restoration rate of the restoration diagnosis command set A decreases. Thereby, the recovery rate of the recovery diagnosis command set B is relatively high. That is, the recovery rate ratio of the recovery diagnostic command set B to the recovery diagnostic command set A increases. When this recovery rate ratio is greater than the ratio of the number of cases calculated as the ratio of the number of failure factor 1 to the number of failure factor 2, the information processing device 360 is a command with the highest recovery rate among a plurality of commands corresponding to the failure code "0001". Is selected as the recovery command. For this reason, when the fault code "0001" is input at the next remote recovery, the information processing device 360 selects the recovery diagnostic command set B having the highest recovery rate. In addition, when the information processing device 360 does not select the recovery diagnostic command set A that failed to recover in the previous remote recovery, the number of cases corresponding to the fault code "0001" after the fault factor 1 is applied to the fault factor 2. Select the linked recovery diagnostic command set B.

In addition, when the information processing device 360 selects the recovery diagnostic command set B having the highest recovery rate from among a plurality of commands corresponding to the failure code "0001" and successfully restores the elevator 20, the recovery diagnostic command set B The recovery rate of is higher. Accordingly, in the next remote recovery, the information processing device 360 selects the recovery diagnosis command set B, similarly to the previous time. On the other hand, when restoration of the elevator 20 fails with the restoration diagnosis instruction set B, the restoration rate of the restoration diagnosis instruction set B is lowered. Then, when the recovery rate of the recovery diagnosis command set B is lower than the recovery rate of the recovery diagnosis command set A, the information processing device 360 selects the recovery diagnosis command set A. In addition, when the information processing device 360 does not select the recovery diagnostic command set B that failed to recover in the previous remote recovery, the recovery diagnostic command set B is followed by a recovery diagnosis with a high recovery rate corresponding to the failure code "0001". Select command set A.

In this way, when remote recovery is successful, the remote recovery system 100 increases the number of failure factors and the recovery rate of the selected recovery diagnosis command set. In addition, when remote recovery fails, the remote recovery system 100 lowers the recovery rate of the selected recovery diagnosis command set while maintaining the number of failure factors. For this reason, if remote recovery is successful, there is a high possibility that the recovery diagnosis command set selected in the remote recovery will be selected at the next remote recovery. Further, if the remote recovery fails, the possibility that the recovery diagnostic command set selected in the remote recovery will be selected at the next remote recovery is lowered. For this reason, as the number of remote restorations increases, the information processing device 360 can select a restoration diagnosis command set with a high restoration possibility corresponding to the failure code from the restoration diagnosis database 380, and the elevator 20 You can improve the certainty of recovery.

In the embodiment described above, the operation of the remote recovery system 100 when a fault code "0001" indicating a fault with respect to the doors 13 and 26 is output from the control panel 210 has been described. Next, a case where a failure code "0002" indicating a failure related to the control circuit is output from the control panel 210 will be described. In addition, the description is abbreviate|omitted about the operation similar to the case where the fault code "0001" was output.

If the fault code is "0002" indicating a fault related to the control circuit, as a result of local inspection by the technician 350, the reason for which the fault code "0002" was output is a fault in the relay mounted on the control panel 210. If there is (failure factor 4), there is a fault in the relay drive circuit that drives the relay (failure factor 5), or other failure factor 6). In the case of the failure factor data (378), in the case of the failure code "0002", 100 cases were caused by a defect in the relay (failure factor 4), and 50 cases were due to a defect in the relay drive circuit (failure factor 5) The other failure factor 6 has the same data structure as 10 cases, and the data is arranged so that the number of cases is increased in order. As described above, in the case of restoration by the remote restoration system 100, when restoration of the elevator 20 is successful according to the restoration command, the total number of failure factors corresponding to the failure code based on the restoration command Is added to the number of causes of failure.

As shown in Fig. 7, the recovery diagnosis database 380 is a database in which a set of recovery diagnosis commands and a recovery rate are linked to data 378 for each failure factor. Hereinafter, the data structure of the recovery diagnosis database 380 in the case where the fault code is "0002" indicating a fault with respect to the control circuit will be described. If the relay is defective (failure factor 4), the recovery diagnostic data is used as the recovery command in the number of fault factor 4 data, "control circuit reset + low speed up, down operation", and recovery diagnosis command "each floor operation, high speed operation. A data structure in which a recovery diagnostic command set D, which is a set of two commands of "diagnosis", and a recovery rate a% by a recovery operation by this recovery diagnostic command are linked. When there is a defect in the relay drive circuit (failure factor 5), the recovery diagnostic data is used as a recovery command in the number of fault factor 5 data, ``control circuit reset + uppermost, lowermost level operation'', and recovery diagnosis command ``each floor operation, A data structure in which a recovery diagnostic command set E, which is a set of two commands of "High Speed Operation Diagnosis", is linked with a recovery rate b% by a recovery operation by this recovery diagnostic command. Similarly, in the case of the failure factor 6, the recovery diagnosis data has a data structure in which the recovery diagnosis command set F and the recovery rate c% are linked to the number of failure factors 6 data. In this way, the recovery diagnostic database 380 associates a fault code, a fault factor corresponding to the fault code, the number of fault factors, a recovery diagnostic command set, which is a set of recovery commands and recovery diagnostic commands, and a recovery rate. It was stored in a database. In addition, as for the recovery rate, b% of the recovery diagnosis command set E is the highest.

When the failure code is "0002", when the information processing device 360 selects the recovery diagnosis command set D based on the failure factor with the largest number corresponding to the failure code "0002", the information processing device 360 , The recovery diagnosis command set D is transmitted to the control panel 210. After executing the control circuit reset operation, the control panel 210 performs low-speed up and down operations in which the car 22 of the elevator 20 is raised and lowered at a low speed. Thereafter, the control panel 210 does not open and close the doors 13 and 26, performs a high-speed operation for stopping each floor, a high-speed operation for driving a plurality of floors at high speed, and a high-speed operation for stopping each floor, and a high-speed operation. Check that there is no abnormality in driving to and from the vehicle. When there is no abnormality in the operation of each floor or high-speed operation, the control panel 210 outputs a determination result that the restoration of the elevator 20 is successful. In addition, when an abnormality is detected in each floor operation or high-speed operation, the control panel 210 outputs a determination result that the restoration of the elevator 20 has failed. The result of this determination 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 device 360 includes failure history data 377, data for each failure factor 378, and a recovery diagnosis database so that a recovery diagnosis command set with a higher recovery possibility can be selected based on the determination result. (380) is updated.

Further, when the information processing device 360 selects the recovery diagnostic command set E with the highest recovery rate corresponding to the fault code "0002", the information processing device 360 sends the recovery diagnostic command set E to the control panel 210. Send. After executing the control circuit reset operation, the control panel 210 performs an operation between the lowermost floor and the uppermost floor in which the car 22 of the elevator 20 is moved between the lowermost floor and the uppermost floor. Next, the control panel 210 performs each floor operation and high-speed operation described above, performs a restoration diagnosis of the elevator 20, and outputs a determination result of whether the restoration of the elevator 20 has succeeded or failed. As described above, the determination result is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing device 360 updates the failure history data 377, the data for each failure factor 378, and the restoration diagnosis database 380 so that a restoration diagnosis command set with a higher probability of restoration can be selected based on the determination result. do.

Next, the case of "0003" indicating that the fault code is a fault related to the brake will be described.

If the fault code is 0003 indicating a breakdown related to the brake, as a result of local inspection by the technician 350, the output factor of the fault code "0003" is caused by an abnormality in the brake circuit of the control panel 210 (failure factor 7). ) Or other failure factor 8 or failure factor 9. Therefore, in the case of the failure factor data 378, in the case of the failure code "0003", 100 cases were caused by an abnormality in the brake circuit (failure factor 7), 50 cases were the failure factor 8, and 9 other failure factors. The data structure is the same as 10 cases, and data are arranged in the order of the largest number of cases. As described above, in the case of restoration by the remote restoration system 100, when restoration of the elevator 20 is successful by the restoration command, the total number of failure factors corresponding to the failure code that is the basis of the restoration command Is added to the number of causes of failure.

As shown in Fig. 8, the recovery diagnosis database 380 is a database in which the recovery diagnosis command set and the recovery rate are linked to the data 378 for each failure factor. Hereinafter, the data structure of the recovery diagnosis database 380 in the case where the fault code is "0003" indicating a breakdown related to the brake will be described. When an abnormality in the brake circuit is a factor (failure factor 7), the recovery diagnostic data is the number of fault factor 7 data, and two commands: ``control circuit reset'' as a recovery command and ``brake torque diagnosis'' as a recovery diagnostic command. It has a data structure in which a set-in recovery diagnostic command set G is linked with a recovery rate d% by a recovery operation in accordance with the recovery diagnostic command. In the case of failure factor 8 and failure factor 9, the recovery diagnosis data is linked to the data of the number of failure factors 8 and 9, respectively, with the recovery diagnosis command set H and the recovery rate e%, and the recovery diagnosis command set I and the recovery rate f%, respectively. It is composed of the data that was set. In this way, the recovery diagnostic database 380 associates a fault code, a fault factor corresponding to the fault code, the number of fault factors, a recovery diagnostic command set, which is a set of recovery commands and recovery diagnostic commands, and a recovery rate. It was stored in a database. In addition, as for the recovery rate, e% of the recovery diagnosis command set H is the highest.

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

When the fault code is "0003", the information processing device 360 instructs the information processing device 360 in step S106 of FIG. 5 based on the most frequent fault factors corresponding to the fault code "0003". When the set G is selected, the information processing device 360 transmits the restoration diagnosis command set G to the control panel 210.

When the fault code is "0003", upon receiving this restoration diagnosis command set G, the control panel 210 performs a brake torque diagnosis operation in the on-site confirmation shown in step S109 of FIG. 5. The brake torque diagnosis operation is an operation to confirm that the traction machine in the drive device 24 does not rotate with a mechanical brake, and a driving force is applied to the traction machine to confirm that the traction machine does not rotate due to the holding force of the brake. If there is no abnormality in this operation, the control panel 210 announces the remote restoration assuming that the on-site confirmation of the elevator 20 was possible in step S109 of FIG. 5. After that, the process proceeds to step S110 in Fig. 5, and the control panel 210 executes a control circuit reset operation.

After that, the control panel 210 performs a brake torque diagnosis operation. When there is no rotation of the hoisting machine by this operation, the control panel 210 outputs a determination result that the restoration of the elevator 20 is successful. In addition, when the hoisting machine rotates, the control panel 210 outputs a determination result that the restoration of the elevator 20 has failed. The result of this determination is input from the control panel 210 to the information processing device 360 via the communication devices 250 and 320. The information processing device 360 updates the failure history data 377, the data for each failure factor 378, and the restoration diagnosis database 380 so that the restoration diagnosis command set with a high restoration possibility can be selected based on the determination result. .

In addition, as described above, the information processing device 360 may select the recovery diagnostic command set H with the highest recovery rate corresponding to the fault code "0003" to cause the control panel 210 to perform a recovery operation and a recovery diagnostic operation. .

In addition, when there is an abnormality in the brake torque diagnosis operation, the control panel 210 determines that remote restoration cannot be started, does not execute the remote restoration operation, and notifies the remote monitoring center 310 that remote restoration is impossible. .

As described above, the remote recovery system 100, when several failures occur in the elevator 20, the elevator 20 with a command from the remote recovery device 300 disposed in a place away from the elevator 20. The elevator 20 can be repaired by executing a repair operation and a repair diagnosis operation. For this reason, when a failure occurs in the elevator 20, the elevator 20 can be restored in a short time without dispatching the technician 350 to the site, and the operation service of the elevator 20 can be improved.

In addition, the remote recovery system 100 can select a recovery diagnostic command set with a higher recovery possibility at the next remote recovery based on the recovery determination result, failure history data 377, failure factor data 378. , The recovery diagnosis database 380 is updated. For this reason, as the number of remote restorations increases, the information processing apparatus 360 can select a more appropriate restoration diagnosis command set corresponding to the failure code from the restoration diagnosis database 380. Accordingly, it is possible to reliably restore the elevator 20, shorten the time required for restoration, and improve the operating service of the elevator 20.

<Treatment of narrowing the range of faulty devices>

In the flowchart of the remote recovery system of FIGS. 5 and 6, when the remote recovery operation is impossible, a notification of the inability of remote recovery is notified to the remote monitoring center (S124), and the operation is stopped (S125) and dispatch of a technician (S126). Although it has been performed, an operation to narrow down the cause of the failure may be performed prior to the notification that the remote restoration is not possible.

For example, when an ON failure of various sensors installed in the elevator 20 occurs, the cause of the failure may be a failure of the sensor itself (sensor circuit, etc.), and a failure of a connection of a terminal extended from the sensor.

In FIG. 9, an enlarged view of the elevator 20 shown in FIG. 1 is illustrated. In this example, a failure of the landing sensor 400 provided in the car 22 will be described. Configurations having low relevance to this failure and the narrowing of the cause of the failure are appropriately omitted.

The car 22 is suspended from a wire 23, and a weight 25 (counter weight) is suspended from the other end of the wire 23. The wire 23 is hung on the drive device 24 (winding machine). The drive device 24 is constituted by, for example, a three-phase AC motor, and the three-phase AC power modulated by the inverter 402 is supplied.

Various sensors are provided in the elevator 20. These sensors include, for example, an encoder 404, current sensors 406u and 406v, a gate switch 408, and an implantation sensor 400.

The encoder 404 is mounted on the drive device 24 and detects the rotation angle of the drive device 24. The current sensors 406u and 406v detect the u-phase current and the v-phase current supplied from the inverter 402 to the drive device 24, respectively.

The gate switch 408 and the landing sensor 400 are provided in the car 22. The gate switch 408 detects the open/closed state of the door 26 on the car 22 side. The landing sensor 400 detects whether the car 22 has landed on a predetermined floor. The implantation sensor 400 is optically, for example, and is disposed so that the light transmitting part and the light receiving part face each other at intervals. In the hoistway, rails are provided in the height direction, and landing position plates (not shown) are provided on each floor. As the car 22 is raised and lowered, the landing sensor 400 is also raised and lowered, and the landing position plate enters between the light transmitting part and the light receiving part of the landing sensor 400 at a predetermined position to block light reception to the light receiving part. Thereby, the relative position of the car 22 with respect to the floor 12 (refer to FIG. 1) is grasped, and based on this, the floor 27 and the floor 12 of the car 22 are positioned. Fitted, the door 26 is opened and closed. For example, the implantation sensor 400 applies a predetermined ON voltage to the signal wiring 414 as an ON signal when the light-transmitting portion and the light-shielding portion are blocked by the implantation position plate.

A cable 410 is provided in the car 22, one end is connected to various electric devices provided in the car 22, and the other end is connected to the interface board 416 of the control panel 210. The cable 410 is a wiring bundle including a power supply wiring 412 and a signal wiring 414. The power supply wiring 412 connects to electric devices provided in the car 22, including the gate switch 408 and the landing sensor 400, and supplies electric power to these devices. The signal wiring 414 transmits the gate switch 408 and the landing sensor 400, as well as an operation signal of a car control panel or an image signal of a security camera, to the control panel 210.

The interface board 416 receives signals from various electric devices (hardware) of the elevator 20 including cables 410 and transmits them to the processing board 417 of the control panel 210, or supplies power to various electric devices. do. The interface board 416 includes a plurality of input terminals 418A to 418E and output terminals 418F and 418G. These terminals are also called contact receivers. In addition, in the example of Fig. 9, only seven input/output terminals are shown for simplification of the illustration, but the number of input terminals and output terminals is not limited to this.

The current sensors 406u and 406v, the encoder 404, the implantation sensor 400, and the connection terminals 420A to 420E of the gate switch 408 are connected to the input terminals 418A to 418E in that order. In addition, the connection terminals 420F and 420G of the power supply wiring 412 of the inverter 402 and the cable 410 are connected to the output terminals 418F and 418G in that order.

In the flow of narrowing the range of the cause of the failure described below, when a so-called ON failure in which a signal from the electric equipment in the elevator 20 is continuously output occurs, whether the cause is a failure of the equipment itself, input/output terminals 418A to 418G. ) And the connection terminals 420A to 420G are determined to be due to poor connection.

Further, in the present embodiment, the remote recovery device 300 executes the flow of narrowing down the cause of the failure. Here, as described later, the flow of narrowing the range of the cause of the failure is basically executed when remote recovery is difficult. From this, if limiting to the execution of the flow of narrowing the cause of the failure, the remote recovery device 300 can be replaced with a remote operation device that causes the elevator 20 to perform a failure response operation. In addition, the remote recovery system 100 may be replaced with a remote monitoring system.

Fig. 10 shows an example in which a functional block (functional unit) of a flow of narrowing down the cause of a failure is added to the remote recovery processing in Fig. 2. The information processing apparatus 360 is provided with a functional block that narrows the range of the cause of the failure, transmits the cause of the failure, and prepares replacement parts as part of the remote recovery process.

In addition, the operation history data 379 is stored in the maintenance database 370. In the operation history data 379, data received by the elevator control apparatus 200 from various devices of the elevator 20 are stored in a time series and for each device.

In Fig. 11, the flow of narrowing the range of the cause of the failure is illustrated. This flow starts with step S103 (failure code reception) in Fig. 5, step S105 (notifies the remote monitoring center of the start of remote restoration), one end point, and step S124 (notifies the remote monitoring center of remote restoration impossibility). Let it be another end point. In addition, since the flow proceeding from step S104 to step S105 has been described above, explanation is omitted below.

Prior to the description of the flow in FIG. 11, with reference to FIG. 9, a failure mode occurring on the elevator side will be described. The control panel 210 (the elevator control device 200) receives signals from various devices included in the elevator 20 through the interface board 416. The control panel 210 does not transmit a fault signal when these various signals are within the range of a predetermined normal value, and transmits various signals to the remote recovery device 300 as necessary. In addition, when these various signals are within a predetermined modulation range that deviates from the normal value, the signal included in the modulation range and the identification ID of the device that output the signal, etc., are transmitted to the remote recovery device ( 300). In addition, when various signals are included in the abnormal range deviating from the normal range more than the modulation range, it is assumed that a device failure has been detected, and the control panel 210 includes a failure signal including a failure code for identifying the malfunctioning device, and A signal or the like included in the above range is transmitted to the remote recovery device 300.

For example, in the case of the implantation sensor 400, when the reception period of the ON signal (on voltage) continues for a predetermined period (e.g., 5 minutes) or more, the control panel 210 (the elevator control device 200) communicates The fault signal is transmitted to the remote recovery device 300 through the device 250 and the communication network 30. The remote recovery device 300 transmits a failure signal to the information processing device 360 via the communication device 320. For example, the failure signal includes a failure code "0010" indicating a failure of the implantation sensor 400.

As described above, the fault signal does not contain information on the specific cause of the failure (the contents of the fault), but basically only the faulty device information. The information processing device 360 receives a failure signal and narrows down the range of the cause of the failure.

For example, as a cause of failure of the implantation sensor 400, there are an off failure (failure cause 1) and an on failure (failure cause 2). The off failure is a failure mode in which the control panel 210 cannot receive an ON signal (the ON voltage is not applied to the input terminal 418D) even when the landing position plate enters between the light transmitting unit and the light receiving unit. On fault, contrary to the off fault, the ON signal is continuously output (on voltage is continuously applied to the input terminal 418D) regardless of when the implantation position plate is inserted or removed between the emitter and the light receiver. ) It is a failure mode.

In addition, as a detailed cause of the on failure, a failure of the faulty device, the implantation sensor 400 itself, for example, an abnormality in the sensitivity of the light-receiving unit (failure cause 2-1), and the control panel 210 (elevator) extended from the landing sensor 400 A connection failure with the input terminal 418D of the connection terminal 420D connected to the control device) (problem cause 2-2) can be mentioned. The information processing device 360 narrows the range of the cause of the failure of the implantation sensor 400 according to the flow of narrowing the range of the cause of the failure shown in FIG. 11.

When the information processing device 360 receives step S103 (failure code reception) and receives a failure signal including a failure code "0010" (floating sensor failure), it is determined whether the received failure is a failure capable of remote recovery operation. Do (S104).

Specifically, as described above, inspection history data 372, maintenance work history data 373, remote inspection history data 374, modulation history data 375, repair work history data 376, failure history data ( 377), it confirms about the following (a)-(f).

(a) The elevator 20 has been instructed to correct the adjustment in the recent inspection.

(b) The possibility of misregulation is predicted because the elevator 20 has a maintenance plan recently or on the same day.

(c) There was an abnormal diagnosis result in the elevator 20 due to remote inspection.

(d) Recently, there has been an occurrence of modulation in the elevator 20.

(e) The elevator 20 has recently undergone repair work.

(f) The elevator 20 recently sent a fault signal according to the same fault code "0010".

And, in the case of any one or more of the above (a) to (f), the information processing device 360 dispatches the technician 350 to the building 10 rather than the recovery by the remote recovery system 100 It is determined that it is better to do so, and it is determined as NO in step S104 of FIG.

In addition, in addition to the above (a) to (f), remote recovery is difficult (because the replacement operation cannot be performed from a remote location), even when an off fault or an on fault that requires replacement of a device or a terminal is suspected. , It is determined that it is better to dispatch the engineer to the building 10, and it is determined as NO in step S104 of FIG. 11.

At the time of determination of the off failure/on failure, the information processing device 360 includes an input signal from the faulty device (floating sensor 400) to the control panel 210 and the elevator 20 other than the faulty device. Refer to the input signal from the device to the control panel 210. For example, the information processing device 360 is sent to the control panel 210 via the remote monitoring center 310 from all the devices received by the control panel 210 in a period of about 10 minutes before and after the time when the failure signal is transmitted. Acquire the received data. Alternatively, past data received from all the devices of the elevator 20 is acquired from the operation history data 379 of the maintenance database 370. Next, the information processing device 360 analyzes these received data.

For example, after the on signal from the implantation sensor 400 is switched to the off state, the gate switch 408 is switched from the off state (gate open signal) to the on signal (gate closed signal), and further after the encoder ( From 404, consider a case in which the rotational position of the drive device 24 is switched from a constant state to a fluctuating state. In this case, since the landing sensor 400 has been switched to the off state before the car 22 in the stopped state starts to move, it is considered to correspond to an off failure (failure cause 1).

In addition, for example, during the period in which the signal from the implantation sensor 400 continues to be output, a sine wave is received from the current sensors 406u and 406v, and the rotational position of the drive device 24 from the encoder 404 Think of the case that received the change. In this case, even after the car 22 leaves the floor 12, it is considered that the signal from the landing sensor 400 is being output, so it is considered to be an ON failure (failure cause 2).

In step S104, when it is determined as the above-described off failure (failure cause 1) or on failure (failure cause 2), it is determined that it is better to dispatch a technician to the building 10, and it is determined as NO in step S104 of FIG. do. In the next step S1002, it is determined whether or not the cause of the failure of the failed device is an on failure (failure cause 2). If it is not the ON failure, the process proceeds as it is to step S124 (notifying the remote monitoring center that remote restoration is not possible).

When the cause of the failure of the faulty device is an on failure, the information processing device 360 further narrows down the cause of the failure. Specifically, whether the cause of the ON failure is a failure of the implantation sensor 400 itself (failure cause 2-1), which is a malfunctioning device, or a poor connection between the connection terminal 420D and the input terminal 418D (failure cause 2-2). ) To narrow down recognition.

In addition, as described later, when the range of the cause of the failure is narrowed, the supply of power to some of the electric devices in the car 22 is temporarily interrupted, so after performing an evacuation operation to evacuate the passengers in the car 22, there is a failure. You may narrow down the scope of the cause. For example, the elevator control device 200 makes an emergency stop to the nearest floor, opens the doors 13 and 26, and additionally sends a message in the car 22 to urge exit from the car 22. Print it out.

The information processing device 360 transmits a power cut-off command for the faulty device (the landing sensor 400) to the elevator control device 200 (S1004). The control panel 210 of the elevator control device 200 stops supplying power to the output terminal 418G, which is a power supply terminal. During this time, signal information of all devices (a specific device may be selected) is transmitted from the elevator control device 200 to the information processing device 360.

After stopping the power supply, the information processing device 360 monitors the signal of the input terminal 418D, and determines whether the input signal from the terminal is 0 over a predetermined period (for example, 5 minutes) (S1006). ). When there is no input of a signal from the implantation sensor 400 to the input terminal 418D over a predetermined period, the information processing device 360 determines that the faulty implantation sensor 400 itself is a failure (S1008).

On the other hand, after the power supply is interrupted, when a signal from the input terminal 418D is detected during the predetermined period, the information processing device 360 connects the connection terminal 420D and the input terminal 418D of the implantation sensor 400 It is determined as defective (S1010).

Next, the information processing device 360 transmits a recovery command including failure information to the remote monitoring center 310 (S1012). Specifically, the failure information includes an identification symbol of the elevator 20, a malfunctioning device, a cause of the failure, and the details of the cause of the failure. For example, information such as &quot;failure device: landing sensor, failure cause: on failure, details of failure cause: connection failure&quot; is transmitted from the information processing device 360 to the remote monitoring center 310.

In addition, the information processing device 360 transmits an order for procurement of replacement parts for at least one of the connection terminal 420 and the input terminal 418 determined to be defective, or the defective device (floating sensor 400) determined to be defective, to a remote monitoring center ( 310) is transmitted (S1014). In this way, the replacement work is quickly performed.

The failure information (recovery command) sent to the remote monitoring center 310 and the procurement command are transmitted to the service center 340 via the communication network 35. The service center 340 is a management device that manages an operator who restores the elevator 20. Thereafter, a notification of the inability to recover remotely is transmitted to the remote monitoring center 310 (S124).

In the above-described embodiment, the failure of the implantation sensor 400 is employed as an example, but the failure device is not limited to this. In short, if it is a device that includes a fault that came as the cause of the fault, and it is a device that the cause of the fault is a fault that came from a comparison with signals from other devices, and the terminal is connected to the interface board 416 in addition, the device On the other hand, the flow of narrowing the range of the cause of the failure according to the present embodiment can be executed. For example, for a sensor whose output signal is two values of ON/OFF, the flow of narrowing the range of the cause of the failure according to the present embodiment can be executed.

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

10 building, 11 hoistway, 12 floor floor, 13 door, 20 elevator, 22 car, 23 wire, 24 drive, 25 weight, 26 door, 27 car floor, 30 communication network, 35 communication network, 100 remote recovery System, 200 Elevator Control Unit, 210 Control Panel, 250 Communication Unit, 300 Remote Recovery Unit (Remote Operation Unit), 310 Remote Monitoring Center, 320 Communication Unit, 330 Monitoring Unit, 331 Display, 332 Switch, 333 Telephone, 334 Monitor, 340 Service Center, 350 technicians, 360 information processing unit, 370 maintenance database, 371 elevator specification data, 372 inspection history data, 373 maintenance work history data, 374 remote inspection history data, 375 modulation history data, 376 repair work history data, 377 failure history Data, 378 Fault Factor Data, 379 Operation History Data, 380 Recovery Diagnostic Database, 400 Landing Sensor, 402 Inverter, 404 Encoder, 406u, 406v Current Sensor, 408 Gate Switch, 410 Cable, 412 Power Supply Wiring, 414 Signal Wiring, 416 Interface board, 417 processing board, 418A~E input terminal, 418F, 418G output terminal, 420A~420G connection terminal.

Claims (4)

As a remote monitoring system for elevators,
An elevator control device that controls driving of the elevator,
A remote control device that communicates with the elevator control device and causes the elevator to perform a failure response operation,
When the elevator control device detects a failure of the equipment included in the elevator, it transmits a failure signal including a failure code for identifying the failure equipment,
The remote control device,
When the cause of the failure of the faulty device is an on fault in which an on signal is continuously output, a power cut-off command to the faulty device is transmitted,
After the transmission of the power cut command, the input signal from the faulty device to the elevator control device is monitored, and when the ON signal is detected, a connection terminal extended from the faulty device and connected to the elevator control device and its connection Determined as a poor connection of the input terminal of the target elevator control device,
An elevator remote monitoring system that monitors an input signal from the faulty device to the elevator control device after transmission of the power cut-off command, and determines that the faulty device itself is faulty when the ON signal is not detected for a predetermined period of time. . The method according to claim 1,
The remote operation device transmits, to a management device that manages an operator performing restoration of the elevator, a restoration command including an identification symbol of the elevator and the failed device as a restoration work target, and the connection with which the connection is determined to be defective. A remote monitoring system for an elevator that transmits a procurement instruction for at least one of a terminal and the input terminal, or a replacement part for the defective device for which failure has been determined. As a remote monitoring system for elevators,
An elevator control device that controls driving of the elevator,
A remote control device that communicates with the elevator control device and causes the elevator to perform a failure response operation,
When the elevator control device detects a failure of the equipment included in the elevator, it transmits a failure signal including a failure code for identifying the failure equipment,
The remote control device,
Upon receiving the failure signal, referring to an input signal from the malfunctioning device to the elevator control device and an input signal from a device included in the elevator other than the malfunctioning device to the elevator control device, Determine whether the cause of the failure is an on failure in which an on signal is continuously output, and
When the cause of the failure of the faulty device is the ON fault, transmits a power cut-off command to the faulty device,
After the transmission of the power cut command, the input signal from the faulty device to the elevator control device is monitored, and when the ON signal is detected, a connection terminal extended from the faulty device and connected to the elevator control device and its connection An elevator remote monitoring system that determines that a connection failure of an input terminal of the target elevator control device is defective. The method according to claim 1 or 2,
When receiving the failure signal, the remote control device refers to an input signal from the malfunctioning device to the elevator control device and an input signal from a device included in the elevator other than the malfunctioning device to the elevator control device. Thus, a remote monitoring system for an elevator that determines whether the cause of the failure of the malfunctioning device is the ON failure.

Images