JP2747071B2 - Elevator remote monitoring device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remote monitoring device for remotely monitoring an elevator such as an elevator and appropriately responding to an abnormality occurring in the elevator.

[Conventional technology]

BACKGROUND ART In recent years, elevators such as elevators, escalators, and lifts have been installed in various types of buildings and provided to flights of residents and visitors, and have become indispensable to people. Therefore, if a failure occurs in the elevator, residents and people entering and exiting the building not only cause a great deal of inconvenience in their life and work, but also may cause personal injury. For this reason, a monitoring system that constantly monitors the elevator for the presence or absence of the abnormality is employed. Such a monitoring system will be described with reference to the drawings.

FIG. 8 is a block diagram of a conventional elevator remote monitoring device. In the figure, reference numeral 1 denotes an elevator installed in a building, and 2 denotes an elevator controller for controlling the operation of the elevator 1. The elevator control device 2 includes a control unit 2a that executes drive control of the elevator 1, and a diagnosis unit 2b that diagnoses whether the elevator 1 is abnormal. 3 is a monitoring terminal device, 4 is a monitoring center,
The monitoring terminal device 3 and the monitoring center 4 are connected via a telephone line 5. The monitoring terminal device 3 manages a predetermined number of elevators (only one is shown in the figure). When an abnormality occurs, the monitoring terminal device 3 notifies the monitoring center 4 via the telephone line 5 and notifies the monitoring center 4. 4 is provided with a function of receiving a command. The monitoring center 4 monitors a large number of monitoring terminal devices via telephone lines. Reference numeral 6 denotes a business office that manages inspection, repair, and the like of the elevator 1, and manages a number of elevators. A telephone line 7 connects the monitoring center 4 and the business office 6.

The control unit 2a of the elevator control device 2 issues an instruction from the elevator 1,
For example, the operation of the elevator 1 is controlled in accordance with, for example, pressing of a push button in an elevator car, while the diagnosis unit 2b generates an abnormality in the elevator 1 based on a signal from the elevator 1 and an embodiment of control of the control unit 2a. Diagnosis is made at all times. Diagnosis unit
When a serious abnormality is diagnosed in 2b, the monitoring terminal device 3
Sends this to the monitoring center 4 via the telephone line 5.
After receiving the notification, the monitoring center 4 notifies the business office 6 that manages the elevator 1 via the telephone line 7 of which elevator of which building has an abnormality. In the sales office 6, the patrol maintenance staff is immediately informed of this, and the maintenance staff rushes to the elevator 1 to take appropriate measures to prevent a personal injury and to recover the elevator 1.

[Problems to be solved by the invention]

By the way, in the above-mentioned conventional elevator remote monitoring device, the monitoring terminal device 3 constantly monitors the diagnosis unit 2b of the elevator control device 2, and when an abnormality occurs, the elevator 1 is controlled based on the abnormality.
Is determined. This determination is made in a critical state, for example, "a passenger is locked in the elevator", "inoperable state", "a state in which the safety device operates", and the like. When these serious conditions occur, it is normal for the diagnosis unit 2b to diagnose abnormalities at a plurality of locations, and the monitoring terminal device 3 determines whether a serious condition has occurred based on the plurality of abnormalities. You will decide. When it is determined that a serious condition has occurred, the monitoring terminal device 3 notifies the monitoring center 4 of the serious condition itself as data, that is, only reports that a serious condition has occurred. Contact place 6. Therefore, the maintenance staff who rushes to the sales office 6 and the elevator 1 where the abnormality has occurred starts the action without knowing the cause of the notified serious condition, and the maintenance staff arrives at the elevator 1 and diagnoses. By reading the data stored in the unit 2b, the cause of the abnormality is known for the first time, and the corresponding process is taken.
As a result, response to critical situations is delayed,
If the maintenance staff does not bring the equipment required for the processing and needs to contact the sales office 6 to get the equipment, the size will be even larger. When the maintenance person arrives at the elevator 1, if the abnormality has already been recovered for some reason and the serious condition has been resolved, the diagnostic unit 2b stores the presence or absence of the abnormality at each point at the present time. Therefore, even if the maintenance personnel reads the data of the diagnostic unit 2b, it becomes unknown where the abnormality occurred,
It is not possible to prepare for the prevention of subsequent serious conditions.

An object of the present invention is to solve the above-described problems in the prior art, and to know the content and state of the abnormality at the time of occurrence of the abnormality. An object of the present invention is to provide an elevator remote monitoring device that can be known.

[Means for solving the problem]

In order to achieve the above object, according to the present invention, the elevator control device determines whether or not there is an abnormality in the elevator, and when it is determined that there is an abnormality, the information of the importance of the abnormality and the content and state of the abnormality are stored in the storage unit. When the elevator control device detects an abnormality of the elevator, the monitoring terminal device stores the importance of the abnormality, the content and state of the abnormality in the storage means, and issues only the signal of the importance of the abnormality to the monitoring center. Receiving the signal indicating the importance of the abnormality, the monitoring center determines the importance of the abnormality,
Determine whether it is necessary to transmit the contents and status of the abnormality, and if it is of the highest importance, unconditionally, When a judgment is required, the monitoring terminal is instructed to transmit the contents of the abnormality and the status according to the judgment of the monitor.

[Action]

With this configuration, the elevator control device determines whether there is an abnormality in the elevator, and when it is determined that there is an abnormality, stores information on the importance of the abnormality of the elevator and the content and state of the abnormality in the storage unit. When the elevator control device detects an abnormality of the elevator, the monitoring terminal device stores the importance of the abnormality, the content and state of the abnormality in the storage means, and issues only the signal of the importance of the abnormality to the monitoring center. I do. When the monitoring center receives the signal indicating the importance of the abnormality, the monitoring center determines the importance of the abnormality, determines whether it is necessary to transmit the content and status of the abnormality, and determines the highest importance. If it is unconditional, the monitoring terminal of the monitoring center must make a judgment regarding the transmission of the details and status of the abnormality. To send the contents and status of. When the abnormality is resolved, the information of the content and state of the abnormality stored in the storage unit is deleted, but is stored in the storage unit of the monitoring terminal device.

〔Example〕

 Hereinafter, the present invention will be described with reference to the illustrated embodiments.

FIG. 1 is a block diagram of an elevator remote monitoring device according to an embodiment of the present invention. In the figure, the same parts as those shown in FIG. 20 is a lift control device corresponding to the lift control device 2 shown in FIG. 8, 30 is a monitoring terminal device corresponding to the monitoring terminal device 3 shown in FIG.
Is a monitoring center corresponding to the monitoring center 4 shown in FIG. The elevator control device 20 is an MP that performs necessary calculations and controls.
It comprises a micro computer comprising a U20a, a ROM 20b for storing the processing procedure of the MPU 20a, a RAM 20c for storing required data, and an I / O 20d for inputting and outputting data. The monitoring terminal device 30 is an MPU 3 that performs necessary calculations and controls.
0a, a ROM 30b for storing the processing procedure of the MPU 30a, a RAM 30c for storing required data, and input / output of data
Microcomputer consisting of I / O 30d, automatic dialing device 30 for automatically dialing the telephone number of monitoring center 40
e, and a transmission / reception circuit 30f for transmitting and receiving information via the telephone line 5.

The monitoring center 40 automatically receives the information transmitted from the monitoring terminal device 30, receives and temporarily stores the information, a keyboard 40e for the monitoring staff to operate as necessary, and automatically stores the telephone number of the terminal device 30. Automatic dialing device 40f for dialing into the device, device data storage device 40c storing the specifications of the monitoring terminal device 30 and information on the elevator 1 being monitored, information stored in the reception storage device 40a and the device storage device A processing circuit 40d for associating the equipment information stored in the storage device 40c with the equipment information stored therein, determining a failure rank, and controlling the automatic dialing device 40f, and transmitting and receiving information via the telephone line 5. 40g, a display device 40b that receives the failure signal from the processing device 40d and sequentially displays the failure rank, contents, status, and the like, and a telephone 40h for a supervisor to contact the sales office 6.

FIG. 2 is a view for explaining the contents of a part of the RAM 20c shown in FIG. As shown in RAM 20c, a portion, A rank fault storage unit 20c _1, B rank fault storage unit 20c _2, C rank fault storage unit 20c _3, D rank fault storage unit 20c _4, and state storage unit It includes a 20c _5, and stores the abnormality of the elevator 1 to the fault storage unit ranks accordance connexion applicable to rank predetermined for the abnormality. State storage unit 20c _5, when abnormality in the elevator 1 has occurred, a storage unit for storing the state of the elevator 1 at that time. The above ranking and status are described in FIGS. 3 and 4 using an elevator as an example.
This will be described with reference to the drawings.

FIG. 3 is an explanatory diagram for explaining an example of ranks of elevator abnormal items (contents of self-diagnosis), and FIG. 4 is an explanatory diagram for explaining state storage items when an elevator abnormality occurs. Third
In the figure, the abnormal items classified into the rank A may have a disturbing effect on passengers of the elevator, and are serious abnormalities that require an emergency stop of the elevator. Abnormal items classified into rank B do not have immediate and alarming effects on the passengers of the elevator. However, measures should be taken to drive the elevator to the nearest floor at low speed, stop there, and drop off the passengers. It is abnormal. In addition, abnormal items classified into rank C do not pose a danger to the passengers of the elevator, but if left unchecked, they may develop into abnormalities of ranks B and A. It is an abnormality that should be stopped there and the passengers taken off. Finally, the abnormal items classified into the D rank are minor abnormalities which do not hinder the operation of the elevator even if left unchecked and need only be checked during the next elevator inspection and maintenance. All the abnormal items classified into each rank are self-diagnosed by the diagnostic function of the elevator control device 20,
It is stored in the failure storage unit of the corresponding rank for each abnormality.
Specifically, each abnormal item is individually associated with an address determined in the RAM 20c, and a rank is determined for each of these addresses. Then, when an abnormality occurs in a certain abnormal item, the value of the address corresponding to this abnormal item changes from, for example, “0” to “1”.

It should be noted that a supplementary explanation of the abnormal items shown in FIG. 3 indicates that “frequent rescue operation” means, for example, a state in which abnormalities of rank C have occurred continuously for a predetermined number of times, and “position abnormalities” means that the elevator control device An abnormality that the position of the elevator can not be grasped on the middle floor for some reason, "landing operation abnormality" means that the speed when the elevator stops is too fast,
An error that is too slow, "load compensation error" refers to an error in elevator level compensation when a large number of passengers are on board, and "county management communication error" refers to an error in group operation of a plurality of elevators and "excessive operation times." ”Means that the motor has been rotated more than the specified number of times, and“ normal operation after restarting ”means a state in which an abnormality has occurred once, but a normal operation has been resumed after restarting. .

Next, FIG. 4 shows a state in which an abnormality has occurred in the elevator,
Is a diagram illustrating a state of the elevator to be stored in the state storage unit 20c ₅ shown in the figure, the state storage items are listed. Specifically, each of these state storage items is individually stored in the RAM 20c.
, And each of these addresses constitutes a state storage unit shown in FIG.

It should be noted that the state storage item shown in FIG. 4 is supplementarily described. The “call occurrence state, car call presence / absence” is an item indicating whether a passenger has pressed the call push button on any floor or car, The “automatic, manual, low-speed operation type” is an item indicating in which operation mode the elevator is operated (low-speed operation is an operation for maintenance).

Next, the operation of this embodiment will be described with reference to the flowcharts shown in FIGS. 5, 6, and 7. FIG. FIG. 5 is a flowchart showing the self-diagnosis operation of the elevator control device 20. The elevator controller 20 monitors the detection signal of the elevator 1 and the control mode of the elevator controller 20 (this monitoring is repeatedly executed in milliseconds), and based on this, an abnormality occurs for each abnormal item. the and of determining whether to have always line summer (Step S ₂₁ shown in FIG. 5). For example, the "main circuit abnormality" shown in FIG. 3 is determined as follows. That is, when the contactor of the main circuit does not perform the ON operation even though the microcomputer of the elevator control device 20 outputs the start command, or when the microcomputer outputs the stop command, If the contactor of the circuit does not perform the OFF operation, the elevator controller 20 determines this as “main circuit abnormality”. When the determination is made in this way, the elevator control device 20 performs necessary processing (control) according to the determination. For example, in the case of the “main circuit abnormality”, an emergency stop command is output to the elevator 1.

Elevator control device 20 has determined an abnormality as described above, stores the Supporting connexion the abnormality to the rank of the predetermined the abnormality in the corresponding abnormal item of the failure memory of the RAM 20c (Step S _22). Specifically, the abnormality is, for example, a value “1” (“0” if normal) in the address of the corresponding abnormality item.
Is stored, and the abnormality is also ranked when the address is ranked.
Then, the state of the elevator 1 when the abnormality occurred is stored in a predetermined address of the state storage unit 20c ₅ (Step S _23). Then, it is determined whether a command for stopping the self-diagnosis function of the elevator control device 20 is being output (Step S _24), it repeats the processing of steps S ₂₁ to S ₂₄ again if not.

Next, the operation of the monitoring terminal control device 30 will be described. FIG. 6 is a flowchart for explaining the operation of the monitoring terminal device 30. Monitoring terminal device 30 I / O20d, the state of the storage of the addresses of RAM20c fault storage unit 20c ₁ ~20c ₄ of the elevator control device via the 30d 20, for example repeatedly confirmed in milliseconds (Sixth
Step S ₃₁ shown in FIG.), The abnormality is determined whether the generated (Step S _32). If changes to "1" storage state of each address of the fault storage unit 20c ₁ ~20c ₄ of RAM20c from "0", the abnormality in step S ₃₂ is judged to have occurred, the rank to which the abnormality belongs confirming with (Step S _33), and stores the contents of all abnormal items in the rank, and the contents thereof when stored in the state storage unit 20c ₅ immediately RAM 30c. Next, the automatic dialing device 30e is instructed to dial the monitoring center 40, and the telephone line with the monitoring center 40 is connected via the telephone line 5 (step _S34 ). Then, only the rank of the occurred abnormality is notified to the monitoring center 40 (procedure S
₃₅ ). If there are multiple abnormal ranks, only the rank with the highest urgency is issued.

Next, the operation of the monitoring center 40 will be described. FIG. 7 is a flowchart for explaining the operation of the monitoring center 40. The monitoring center 40 makes a telephone line connection in response to a telephone line connection request from the monitoring terminal device 30 (procedure shown in FIG. 7).
_S41 ), receive the rank of the abnormality issued from the monitoring terminal device 30, and store it in the storage device (procedure)
_S42 ). Then, the received rank is displayed on the display device (step _S43 ), and it is automatically determined whether or not this rank is the A rank (step _S44 ). If the rank is not the A rank, it is further determined whether the rank is a rank that needs to be confirmed by the supervisor of the monitoring center 40 or a mild rank that does not need to be confirmed by the supervisor. Step _S45 ). In the case of the former rank, after the observer confirms the rank, a command is issued to the processing device 40d by the keyboard 40e, whereby the processing device 40d
0e, and instructs the monitoring terminal device 30 via the transmission / reception circuit 40f and the telephone line 5 to adjust the content and state of the abnormality stored in the RAM 30c and to transmit these to the monitoring center 40. At the same time, it receives the data transmitted according to this command and stores it in the reception storage device 40a (procedure _S46 ). Then, the content and state of the received abnormality are displayed on the display device 40b.

On the other hand, a rank A rank in Step S _44. That is, when an abnormality is judged to be an important abnormality, without the process of the monitoring personnel confirmation in Step S _45, immediately and processing steps S ₄₆ by automatically processing device 40d is made. Thus, it is possible to quickly respond to the abnormality without bothering the monitor staff. Further steps
In S _45, abnormality when it is determined that the slight abnormality that does not require monitoring by the monitoring personnel, and the process ends without performing also the processing of all.

When the display is made on the display device 40b, the person in charge of the monitoring center 40 first informs the sales office 6 managing the elevator 1 in which the abnormality has occurred, via the telephone line 7, of the abnormality occurrence and the rank of the abnormality. And then perform step S ₄₆ above.
If the processing has been performed, based on the read data, looking at the displayed display item for informing the content and state of the elevator 1 in the abnormal offices 6 by the procedure S _47. Based on the notification of the abnormality from the monitoring center 40, the sales office 6 immediately informs the maintenance staff on patrol of the occurrence of the abnormality in the elevator 1 and the rank of the abnormality. When the state of the elevator 1 at that time is known, these contents are also communicated, and the elevator 1 is made to rush the maintenance staff. The maintenance staff can know in advance which part of the cause of the abnormality of the elevator 1 and what state the elevator 1 is in by this communication.
When you arrive, you can take appropriate action promptly. Further, when the maintenance staff rushes to the elevator 1 in a state where only the rank of the abnormality is first notified to the maintenance staff, the maintenance staff knows the abnormal item and the state of the elevator 1 by making an adjustment to the sales office 6 thereafter. And the same rapid and appropriate treatment can be taken.

On the other hand, at the sales office 6, if there is any equipment required for repairing the abnormality of the elevator 1 which is not carried by the maintenance personnel based on the content of the abnormality, a staff member is dispatched to immediately raise the equipment. 1 to ensure reliable and rapid repair of the anomaly. In addition, since the rank of the abnormality is reported first, it is possible to promptly take care of personnel corresponding to the rank (usually, in the case of rank A, two maintenance personnel are often required). further,
Even when an abnormality occurs in a plurality of elevators at the same time, the rank is notified, so that a priority action can be taken immediately for the abnormality of the rank.

On the other hand, if the abnormality notification to the monitoring center 40 is in the D rank, the monitoring center 40
The fact that there is an abnormality in the rank is notified, and the sales office 6 stores the information by appropriate means, confirms the content of the abnormality when inspecting the elevator 1, and takes necessary measures. In this case,
The contents of the abnormality can be read out at the monitoring center 40 if there is room, or the maintenance personnel can directly read out the contents from the monitoring terminal device 30 using a dedicated device.

〔The invention's effect〕

As described above, according to the present invention, when detecting an abnormality in an elevator, the monitoring terminal device issues only a signal indicating the importance of the abnormality to the monitoring center, and the monitoring center transmits the signal indicating the importance of the abnormality to the monitoring center. Judge whether or not the transmission of the contents and status is necessary, and if it is the highest priority, unconditional, the judgment of the monitoring center monitoring personnel regarding the transmission of the contents and status of the abnormality is required. In the event that the abnormality has occurred, the monitoring terminal device is instructed to transmit the content and status of the abnormality according to the judgment of the supervisor, so that prompt and appropriate response to the abnormality that has occurred, that is, An appropriate number of maintenance staff can be arranged to the sales offices and the cause of the abnormality can be reported.In addition, even if multiple elevators have an abnormality at the same time, priority is given according to the importance of the abnormality. Recovery work can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an elevator remote monitoring device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the storage contents of a RAM of the monitoring terminal device shown in FIG. 1, and FIG. FIG. 4 is an explanatory view of a state storage item when an abnormality occurs in an elevator, FIGS. 5, 6, and 7 are flow charts for explaining the operation of the apparatus shown in FIG. 1, and FIG. It is a block diagram of the conventional elevator remote monitoring apparatus. 1 ... elevator, 6 ... office, 20 ... elevator control device,
20c …… RAM, 30 …… Monitoring terminal device, 30c …… RAM, 40 ……
Monitoring center, 40d ... Processing unit.

Claims (1)

(57) [Claims] An elevator control device having a function of controlling an elevator provided in a building and diagnosing an abnormality of the elevator, and issuing an abnormality when the abnormality of the elevator is detected by the elevator control device. In an elevator remote monitoring device including a monitoring terminal device and a monitoring center that manages a plurality of the monitoring terminal devices via a telephone line, the elevator control device determines whether the elevator has an abnormality, and determines whether there is an abnormality. When the determination is made, the information on the importance of the abnormality and the content and state of the abnormality are stored in the storage unit, and the monitoring terminal device determines the importance and abnormality of the abnormality when the elevator control device detects the abnormality of the elevator. And the state of the abnormality are stored in the storage means, and only the signal of the importance of the abnormality is notified to the monitoring center. When the signal of the importance of the abnormality is received, the monitoring center To determine whether it is necessary to transmit the content and state of the abnormality, and when it is of the highest importance, unconditionally, If it is necessary to make a decision from the supervisor of the monitoring center, in accordance with the decision of the supervisor,
An elevator remote monitoring device, wherein the monitoring terminal device is instructed to transmit the content and status of the abnormality.