JPH06255931A - Trouble diagnosis system for elevator - Google Patents

Abstract

PURPOSE:To provide an elevator trouble diagnosis system by which the inquiry of the cause of trouble and the repair of the trouble can be conducted simply regardless of the length of the work experience of an elevator maintenance person. CONSTITUTION:An elevator trouble diagnosis system is equipped with plural elevator watch terminal devices 1 and a trouble watch center 10, and at each elevator watch terminal device 1, the watch and memory of elevator operation information are conducted, and when abnormality occurs at the operation information, the contents of the abnormality is arranged to be reported to the trouble watch center 10 through a communication circuit 17. A trouble diagnosis center 13 which conducts the contents diagnosis of operation information and generates its diagnosis information, is provided, and a communication means 9 which, in a case in which the abnormality of operation information is detected in an elevator watch terminal device 1, transmits this detected operation information to the trouble diagnosis center 13 through a communication circuit 18 and also receives diagnosis information obtained at the trouble diagnosis center 13 through the communication circuit 18, and a diagnosis information memorizing means 7 to memorize the diagnosis information thus received, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator failure diagnosis system, and in particular, it monitors and stores operation information obtained during elevator operation, and some abnormality has occurred in the operation information. At this time, the present invention relates to a failure diagnosis system for an elevator that automatically diagnoses the contents of its operation information and generates diagnostic information.

[0002]

2. Description of the Related Art Generally, a known elevator failure diagnosis system includes elevator monitoring terminal devices installed in respective buildings (buildings) in which elevators are installed, and communication lines for these elevator monitoring terminal devices. It consists of a common failure monitoring center that is selectively connected through a telephone line).

In this case, the elevator monitoring terminal device has some abnormality (failure) in the operation operation of the elevator.
When a failure occurs, the details of the failure are reported to the failure monitoring center, and the failure monitoring center that receives the notification diagnoses the cause of the failure and goes to the site for repair of the failure. The staff are informed of the details of the failure.

By the way, FIG. 2 is a block diagram showing an example of the known failure diagnosis system for an elevator.

In FIG. 2, 30 is an elevator monitoring terminal device, 31 is an operation information collection unit, 32 is an operation information storage unit, 33 is a failure detection unit, 34 is a failure information communication unit, 35 is an elevator control device, and 36 is information. A display unit, 37 is a communication line (telephone line), 38 is a failure monitoring center, 39 is a communication unit, and 40 is a display unit.

The elevator monitoring terminal device 30
On the basis of the operation information collected by the operation information collection unit 31 that monitors the operation state of the elevator control device 35 and collects the operation information, and the operation information storage unit 32 that stores the operation information. A failure detecting unit 33 that detects an abnormality (failure) in elevator operation and generates failure information when a failure is detected, and a failure that reports the failure information to a failure monitoring center 38 via a telephone line 37. The failure monitoring center 38 includes a communication unit 39 that receives the failure information issued by the elevator monitoring terminal device 30, a display unit 40 that displays the failure information, and the like. To be done. In addition, the operation information storage unit 32 of the elevator monitoring terminal device 30 is configured to be connectable to an information display unit 36 that reads out and displays the stored operation information.

The known elevator failure diagnosis system having the above-described configuration operates as follows.

The elevator monitoring terminal device 30 collects the operation information indicating the operation state of the elevator control device 35 in the operation information collection unit 31, and the operation information collected here is transmitted to the operation information storage unit 32. Stored there. The failure detection unit 33 monitors the operation information collected by the operation information collection unit 31, and during the monitoring, some abnormality (failure) occurs in the operation status of the elevator,
When it is detected that an abnormality has occurred in the operation information, failure information is generated. The failure information communication unit 34 includes the failure detection unit 33.
When the failure information is generated, the failure monitoring center 38 is called by an automatic dial, the elevator monitoring terminal device 30 and the failure monitoring center 38 are connected via a telephone line 37, and the failure information is reported to the failure monitoring center 38. To do.

In the failure monitoring center 38, when the failure information is sent through the telephone line 37, the communication section 39 receives the failure information and the content of the failure information is displayed on the display section 40.
To display. At this time, the operator of the failure monitoring center 38 sees the content of the failure information displayed on the display section 40, and contacts the elevator maintenance staff who are waiting at the required office by telephone or fax. Request dispatch to the site to repair the broken elevator.

The elevator maintenance staff dispatched to the site stores in the operation information storage section 32 of the elevator monitoring terminal device 30,
For example, after connecting the brought-in information display unit 35, reading the operation information stored in the operation information storage unit 32, receiving the operation information in the information display unit 32, and checking the display content displayed in the information display unit 32. So, I try to repair the defective part of the elevator.

[0011]

In the above-mentioned known elevator failure diagnosis system, when the elevator maintenance staff goes to the installation site of the failed elevator due to the notification of the occurrence of the elevator failure, the elevator maintenance staff makes the elevator maintenance work. The operation information stored in the operation information storage unit 32 of the monitoring terminal device 30 is displayed on the information display unit 32 on hand, and the cause of the failure is investigated and the failure is repaired based on the displayed content. . By the way, in order for the elevator maintenance staff to investigate the cause of the failure and repair the failure based on the display contents of the operation information, it is usually necessary to have a fairly high level of technical skill backed by work experience. Despite the large number, not all elevator maintenance personnel have such advanced technical capabilities. For this reason, for example, when an elevator maintenance staff with little work experience is requested to be dispatched to the installation site of a failed elevator and the cause of the failure is investigated, it takes a lot of time to complete the repair of the failure. However, there is a problem that the delay in response causes a great deal of trouble to the customer.

The present invention is intended to solve such a problem, and its purpose is to make it possible to easily determine the cause of a failure and repair the failure, regardless of the depth of work experience of elevator maintenance personnel. To provide a failure diagnosis system of.

[0013]

In order to achieve the above object, the present invention comprises a plurality of elevator monitoring terminal devices and a failure monitoring center, wherein the elevator monitoring terminal devices monitor elevator operating information and When an abnormality occurs in the operation information that is stored, an elevator failure diagnosis system that reports the content of the abnormality to the failure monitoring center via a communication line, performs a content diagnosis of the operation information, and A failure diagnosis center that generates diagnostic information is provided, and when the elevator monitoring terminal device detects an abnormality in the operation information, the detected operation information is transmitted to the failure diagnosis center via a communication line. And communication means for receiving the diagnostic information obtained at the failure diagnosis center via a communication line, and the received diagnostic information Comprises means provided a diagnostic information storage means for storing.

[0014]

According to the above means, when the elevator has a failure, the elevator monitoring terminal device reports the failure information to the failure monitoring center and, at the same time, transmits the operation information at the time of the failure to a separately provided failure diagnosis center. . And
The failure diagnosis center estimates the failure cause of the elevator based on the transmitted operation information at the time of failure occurrence, using information such as failure cases and failure probabilities that occurred in the past, and a diagnosis showing the result. Generate information. Next, this diagnostic information is sent back from the failure diagnostic center to the elevator monitoring terminal device and stored in the diagnostic information storage unit.

When the elevator maintenance staff arrives at the installation site of the faulty elevator, first, he / she connects the information display unit on hand to the diagnostic information storage unit and stores it in the diagnostic information storage unit displayed on the information display unit. After looking at the diagnostic information that has been given, it is sufficient to repair the faulty part indicated in the diagnostic information.

As described above, according to the above-mentioned means, when the elevator maintenance staff who arrives by the report arrives at the site, the cause of the elevator failure is already investigated at the failure diagnosis center, and the failed location of the elevator to be repaired is specified. Therefore, regardless of the depth of work experience of the elevator maintenance personnel, the repair of the failure of the elevator can be completed and restored in a short time.

[0017]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an elevator failure diagnosis system according to the present invention.

In FIG. 1, 1 is an elevator monitoring terminal device, 2 is an operation information collection unit, 3 is an operation information storage unit, 4 is a failure detection unit, 5 is a failure information communication unit, 6 is a diagnostic information communication unit, and 7 is Diagnostic information storage unit, 8 is an elevator control device,
9 is an information display unit, 10 is a failure monitoring center, 11 is a communication unit, 12 is a display unit, 13 is a failure diagnosis center, 14 is a communication unit, 15 is a failure reasoning unit, 16 is a failure probability information storage unit,
Reference numerals 17 and 18 are communication lines (telephone lines).

Then, the elevator monitoring terminal device 1 is
An operation information collecting unit 2 that monitors the operation state of the elevator control device 9 and collects operation information thereof, an operation information storage unit 3 that stores the operation information, and an elevator based on the collected operation information. A fault detection unit 4 that detects an abnormality (fault) in the operation and generates fault information when a fault is detected, and fault information communication that reports the fault information to the fault monitoring center 10 via a telephone line 17. Part 5
When the failure information is generated, the operation information corresponding to the failure information collected in the operation information storage unit 3 is transmitted to the failure diagnosis center 13 via the telephone line 18, and the failure diagnosis center 13 outputs the operation information. The diagnostic information communication unit 6 receives the diagnostic information via the telephone line 18, and the diagnostic information storage unit 7 stores the diagnostic information received by the diagnostic information communication unit 6. The failure monitoring center 10 is composed of a communication unit 11 that receives the failure information issued by the elevator monitoring terminal device 1, a display unit 12 that displays the failure information, and the failure diagnosis center 13 A communication unit 14 that receives the operation information transmitted from the diagnostic information communication unit 6 and transmits the diagnostic information to the diagnostic information communication unit 6;
Using the storage information of the failure probability information storage unit 16, a failure reasoning unit 15 that estimates a failure cause based on the operation information and generates diagnostic information, and information such as a past failure case and a past failure occurrence probability. Failure probability information storage unit 16 that is stored and stored
Composed of and. Furthermore, the diagnostic information storage unit 7 of the elevator monitoring terminal device 1 is configured to be connectable to an information display unit 9 that reads out and displays the stored diagnostic information.

Although only one elevator terminal device 1 is selectively connected to the failure monitoring center 10 and the failure diagnosis center 13 via the telephone lines 17 and 18 in FIG. , A plurality of elevator terminal devices 1 are arranged in parallel to the failure monitoring center 10 and the failure diagnosis center 13.

The elevator failure diagnosis system of the present embodiment having the above-described configuration operates as follows.

In the elevator monitoring terminal device 1, the operation information collection unit 2 collects operation information indicating the operation state of the elevator control device 8, and the operation information collected here is transmitted to the operation information storage unit 3 and stored there. Memorized in. The failure detection unit 4 monitors the operation information collected by the operation information collection unit 3, and at the time of monitoring, some abnormality (failure) occurs in the operation status of the elevator, and the content of the operation information is changed. When it is detected that an abnormality has occurred, failure information is generated and supplied to the failure information communication unit 5 and the diagnostic information communication unit 6. Upon receiving the failure information, the failure information communication unit 5 calls the failure monitoring center 10 by an automatic dial, connects the elevator monitoring terminal device 1 and the failure monitoring center 10 via the telephone line 17, and fails the failure information. The monitoring center 10 is notified. At the same time, the diagnostic information communication unit 6
When the failure information is received, the operator also calls the failure diagnosis center 13 by the automatic dial, and the telephone line 18
The elevator monitoring terminal device 1 and the failure diagnosis center 13 are connected via the, and thereafter, operation information corresponding to the failure information (hereinafter, referred to as operation information at the time of failure) is read from the operation information storage unit 3, The read operation information at the time of failure is transmitted to the failure diagnosis center 13.

In the failure monitoring center 10, when the failure information is sent through the telephone line 17, the communication section 11 receives the failure information and the content of the failure information is displayed on the display section 12.
To display. At this time, the operator of the failure monitoring center 10 sees the content of the failure information displayed on the display section 12, and contacts the elevator maintenance staff who are waiting at the required office by telephone or fax. Request a dispatch to the elevator installation site to repair the broken elevator.

Further, the failure diagnosis center 13 receives the operation information at the time of the failure through the telephone line 18,
The communication unit 14 receives the operation information at the time of this failure, and then
It is transmitted to the fault inference unit 15. When the failure inference unit 15 is supplied with the operation information at the time of the failure, the operation information at the time of the failure and the past failure cases and past failures of the elevator already stored in the failure probability information storage unit 16 are provided. The failure cause is diagnosed by inferring the cause of this failure by comparing it with information such as the occurrence probability of the failure, and diagnostic information representing the diagnosis result is generated. After this diagnostic information is supplied to the communication unit 14, the communication unit 14
Elevator monitoring terminal device 1 through telephone line 18
Is transmitted to the diagnostic information communication unit 6.

When the elevator monitoring terminal device 1 receives the diagnostic information in the diagnostic information communication unit 6 again, it is transferred to the diagnostic information storage unit 7 and stored therein. in this case,
Operation from the failure information communication unit 5 of the elevator monitoring terminal device 1 generating the failure information to the storage of the diagnostic information obtained at the failure diagnostic center 13 in the diagnostic information storage unit 7 of the elevator monitoring terminal device 1. In a fairly short time,
That is, it is executed before the elevator maintenance staff requested to be dispatched arrives at the installation site of the failed elevator.

On the other hand, the elevator maintenance staff dispatched to the installation site of the failed elevator by the notification from the failure monitoring center 10 first finds, for example, the elevator maintenance staff in the diagnostic information storage unit 7 of the elevator monitoring terminal device 1. The information display unit 9 brought by is connected, the diagnostic information already stored in the diagnostic information storage unit 7 is read out and displayed on the information display unit 9. At this time, since the information display unit 9 displays the content of the diagnostic information, that is, the failure location of the failed elevator, the cause of the failure, etc.,
Elevator maintenance personnel, after looking at the displayed contents, can repair the faulty part of the displayed elevator to remove the cause of the fault, and then repair the fault promptly and accurately. Can be restored.

As described above, according to the present embodiment, the elevator maintenance personnel can perform the repair work of the failed elevator by using the operation information stored in the operation information storage unit 3 of the elevator monitoring terminal device 1 as before. Instead of based on the diagnostic information stored in the diagnostic information storage unit 7, the elevator that has failed in a short time regardless of the depth of work experience of the elevator maintenance personnel. Repairs can be completed and restored.

[0029]

As described above, according to the present invention,
When the elevator monitoring terminal device 1 detects a failure of the elevator, the elevator monitoring terminal device 1 transmits the operation information at the time of failure to the failure diagnosis center 13, and the failure diagnosis center 13 also performs the operation information at the time of this failure. The diagnostic information is formed from the diagnostic information, and this diagnostic information is stored in the diagnostic information storage unit 7 of the elevator monitoring terminal device 1. For this reason, when the elevator maintenance staff who receives the report of the failure arrives at the installation site of the failed elevator, the diagnostic information storage unit 7 of the elevator monitoring terminal device 1 shows the failed location of the failed elevator and the cause of the failure. Since the diagnostic information that is the content is stored, the elevator maintenance personnel can display this diagnostic information on the information display unit 9 that he / she has, regardless of the depth of work experience of the elevator maintenance personnel, in a short time. The effect is that repair of a broken elevator can be completed and restored.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator failure diagnosis system according to the present invention.

FIG. 2 is a block diagram showing an example of a known elevator failure diagnosis system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator monitoring terminal device 2 Operation information collection unit 3 Operation information storage unit 4 Failure detection unit 5 Failure information communication unit 6 Diagnostic information communication unit 7 Diagnostic information storage unit 8 Information display unit 9 Elevator control device 10 Failure monitoring center 11 Communication unit 12 Display unit 13 Failure diagnosis center 14 Communication unit 15 Failure inference unit 16 Failure probability information storage unit 17, 18 Communication line (telephone line)

Claims (2)

[Claims] 1. A plurality of elevator monitoring terminal devices and a failure monitoring center are provided, wherein the elevator monitoring terminal devices monitor and store elevator operation information, and when an abnormality occurs in the operation information, In an elevator failure diagnosis system that reports the content of an abnormality to the failure monitoring center via a communication line, a failure diagnosis center that performs the content diagnosis of the operation information and generates the diagnostic information is provided. When an abnormality of the operation information is detected, the terminal device transmits the detected operation information to the failure diagnosis center via a communication line, and communicates the diagnosis information obtained at the failure diagnosis center. A communication means for receiving via a line and a diagnostic information storage means for storing the received diagnostic information are provided. Elevator failure diagnosis system. 2. The external display means for reading and displaying the diagnostic information stored therein is connectable to the diagnostic information storage means.
Elevator failure diagnosis system described.