JPH04201963A - Remote supervisory control device for elevator - Google Patents

Abstract

PURPOSE:To send out maintenance work indication such as parts replacement and adjustment required parts before getting to grave failure by collecting the supervisory data of an optional elevator by a supervisory program on the supervisory center device side, and performing the automatic diagnosis of even slight abnormality by a failure diagnosis program. CONSTITUTION:At the preset diagnosis execution timing of a total supervison object elevator device, the supervisory terminal call of this elevator device is performed. In the case of changing the abnormality detecting condition of this elevator device from the supervisory center device 4 side, a change program and data are transmitted to change the abnormality detecting condition of the supervisory terminal of the elevator device. The supervisory data and abnormality data are then transmitted and held. A failure diagnosis program is executed on the basis of the received data, and the existence of abnormality, its cause, or a place with a sign of abnormality and its content are diagnosed. The diagnosis result is automatically communicated/indicated to the maintenance service point of this elevator. Even slight abnormality can be thereby disposed of without being left as it is.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applied to a remote monitoring and control device for an elevator, in particular, monitors and controls the operating status of the elevator, and analyzes the cause of the abnormality on the abnormality detection information viewing center device side. This invention relates to a remote monitoring and control device for elevators that issues instructions for maintenance and restoration work.

[Prior Art] Conventionally, a method for changing the program or data of an elevator control circuit from a monitoring center device via a telephone line has been disclosed, for example, in Japanese Patent Application Laid-Open No. 63-258382. For example, Japanese Unexamined Patent Publication No. 2-138081 discloses a system in which a fault is notified to a monitoring center device, the cause of the failure is diagnosed on the monitoring center device side, and the result is automatically reported to a service center.

[Problems to be Solved by the Invention] However, in the past, abnormalities in the elevator were detected and the alarm trigger signal, operating status, and operation history were sent to the monitoring center WL, feeder, and supervisory center equipment Wt. In order to diagnose failures, (1) the monitoring center equipment W side cannot detect abnormalities other than the abnormality detection conditions set in advance on the elevator side; (2) even minor abnormalities can be sent to the monitoring center equipment, and the If there are many elevators and escalators, the capacity of the telephone line and the processing capacity of the monitoring center equipment cannot keep up, hindering the monitoring of major failures. The problem was that the equipment was left unattended until a serious failure occurred.

This invention was made in order to solve the above-mentioned problems, and allows maintenance activities to be carried out before serious failures occur.Also, it is possible to perform maintenance work on elevators and escalators without increasing the number of telephone lines or the human monitoring processing capacity of the monitoring center equipment. The purpose of this invention is to obtain a remote monitoring and control device for elevators that can perform detailed monitoring.

[Means for Solving the Problems] A remote monitoring and control device for an elevator according to the present invention includes a monitoring terminal that transmits operating status, operating history, and abnormality detection information of the elevator via a communication line; The apparatus includes a monitoring center device that receives the information or requests the monitoring terminal to transmit the information at any time, and has a diagnostic function based on the received information.

[Operation] In this invention, the monitoring data of any elevator is collected by the monitoring program on the monitoring center device side, and even minor abnormalities are automatically diagnosed by the fault diagnosis program, the cause and abnormal location can be identified, and major malfunctions can be detected. It is possible to issue maintenance work instructions such as parts replacement and areas that require adjustment before the maintenance is completed. Since the monitoring program is provided in the monitoring center device, the number of telephone lines and the processing capacity of the monitoring center device can be set economically and effectively. Furthermore, secondary failures can be prevented by priority monitoring using a tracking monitoring program.

“Example” An example of the present invention will be described below with reference to the drawings.
The figure is a configuration diagram, but does not show one embodiment of the present invention. In Figure 1, (1), (2), and 3) are multiple elevators, such as elevator equipment, (4) is a monitoring center equipment, and (5) is an elevator equipment (]), (2), and (3). Monitoring center equipment!
Telephone network connecting (4), (11), (21), (31
) are monitoring terminals provided in the elevator devices (1), (2), and (3), respectively. Multiple elevator installations (
1), (2), (3) side monitoring terminals (11), (
21) and (31) are connected to the monitoring center device (4) via a telephone line network (5).

Each of the monitoring terminals (1]), (21), (31) includes one or more elevator control devices (12), (13),
and in-car intercoms (14), (15) of an elevator (not shown) controlled by these are connected. Monitoring terminal 11) and elevator control system! (12
), (], and 3) are connected by an electrically insulated common line type elevator communication signal line (16). Electrical isolation is achieved by using a pulse transformer or the like, so that even if any of the devices connected to the elevator communication signal line (16) breaks down, it will not affect the others. or,
Monitoring terminal (11) via elevator communication signal line (16)
can periodically capture the internal operating status of the elevator control devices (12), (13). The elevator car intercoms (14) and (15) are used to make voice calls between the inside of the elevator car and the monitoring center device (4) via a telephone line. The monitoring terminal (11) and intercoms (14) and (15) are also connected by an electrically insulated common intercom signal line (17). The monitoring terminal (11) monitors the operating status of the elevator control devices (12) and (13), and when an abnormality is detected, the abnormality is reported to the monitoring center via the telephone line R (5). (4) and intercoms (14) and (15).
), when a call request is made, a voice call is made between the elevator car and the monitoring center device (4) by using the same telephone line in a time-sharing manner.

Sor 1. −, Whistle 1 1VI +, −−:
l Su-,” /71 m a day a>'a
i Pupil ml /71 N work will be explained with reference to FIGS. 2 and 3.

Figure 2 shows the monitoring terminals (11) and (21) on the elevator equipment side.
) and (31), step (50) monitors the operating status of the elevator equipment and performs diagnostic processing based on predetermined abnormality detection conditions, and step (51) If an abnormality occurs, the abnormal data is held in the next steps (52) and (53) and is transmitted to the monitoring center device (4).

If there is no major abnormality and the abnormality is minor, the process proceeds from steps (54) to (55), the abnormality data is retained, and no notification is sent to the monitoring center device (4). If there is no abnormality, in step (56) kneeling (
Call) is checked, if not, step (50
) Return to

When there is a call from the monitoring center device (4), the line connection is fully confirmed in step (57), and then step (
In step 58), the monitoring data requested to be sent from the monitoring center device (4) (the processing result in step (50)) and the abnormal data held in steps (52) and (55) are sent to the monitoring center device (4). While transmitting, the monitoring center device (4)
If there is a request to change the abnormality detection conditions from , the detection conditions of the abnormality detection program are changed. The process of step (57) is to sufficiently check that the elevator system is the one in question and that it is not a third party other than the monitoring center device (4) when changing the processing program of the monitoring terminal. For example, you can confirm the match between the monitoring terminal (11), etc., end the call, and reinstall the monitoring center from the monitoring terminal (11), etc. (
Any method such as connecting 4) to a calling line may be used.

FIG. 3 shows a part of the monitoring control program on the monitoring center device (4) side. In step (60), a call from the monitoring terminal of the elevator device is checked, and if there is a call (when a serious abnormality occurs), step (61), (62), (
In step 63), abnormality data is received and a failure diagnosis is performed, and the diagnosis results, restoration, and maintenance work instructions are automatically notified to the maintenance service base of the elevator equipment in question.

If there is no call in step (60), step (
64) The subsequent monitoring program according to the schedule of the monitoring center device (4) is executed.

At steps (64), (65), and (66), when a predetermined diagnosis execution time for all the elevator apparatuses to be monitored comes, the monitoring terminal of the corresponding elevator apparatus is called. The process in step (66) is performed in step (5) in FIG.
This corresponds to the process 7).

When changing the abnormality detection conditions of the corresponding elevator equipment from the monitoring center equipment (4) side, steps (67) and (6)
In step 8), the change program and data are transmitted, and the abnormality detection conditions of the monitoring terminal of the elevator system are changed. Next, in steps (6), monitoring data and abnormal data are received and held, and the call is terminated in step (70). After that, in steps (62) and (63), a fault diagnosis program is executed based on this received data, and the presence or absence of an abnormality, the cause, or the location and contents of abnormality signs are diagnosed, and the diagnosis results and recovery/ Maintenance work instructions are automatically reported to the maintenance service center for the elevator equipment in question, and even minor abnormalities are dealt with without being ignored.

In this way, in this embodiment, not only serious abnormalities are reported to the monitoring center device, but also minor abnormalities are discovered through periodic remote diagnosis from the monitoring center device, and the corresponding maintenance service base is automatically restored and repaired. Can issue maintenance work instructions. In addition, for sites where major failures occur, the dedicated abnormality detection conditions can be changed to the monitoring terminal, and the monitoring center equipment can change the monitoring schedule and increase the priority of monitoring, allowing for follow-up investigations. This makes it possible to detect secondary abnormalities at an early stage and prevent recurrence of failures.

Incidentally, in the above-described embodiments, the case where an elevator device is used as the elevator has been described, but the present invention is not limited thereto, and may be applied to other elevators such as escalators.

[Effects of the Invention] As described above, according to the present invention, there is provided a monitoring terminal that transmits the operating status, operating history, and abnormality detection information of an elevator via a telephone line, and a monitoring terminal that receives or receives the above information from the monitoring terminal. Since it is equipped with a monitoring center device that requests the transmission of the above information at any time on TL17 and has a snooping function based on the received information, maintenance activities can be carried out before a major failure occurs, thereby improving the reliability of the elevator. Further, there is an effect that a remote monitoring and control device for elevators and escalators can be obtained which can perform detailed monitoring of elevators and escalators without increasing the number of telephone lines and the human monitoring processing capacity of the monitoring center device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts 1 to explain the operation of FIG. 1, respectively. In the figure, (1), (2), and (3) are elevator equipment, (4) is a monitoring center equipment, (5) is a telephone line network, and (1) is a monitoring center equipment.
1), (2], ), and (31) are monitoring terminals.

Claims (4)

[Claims] (1) A monitoring terminal that sends the operating status, operating history, and abnormality detection information of the elevator via a telephone line, and receives the above information from the monitoring terminal, or requests and receives the above information from the monitoring terminal at any time. 1. A remote monitoring and control device for an elevator, comprising: a monitoring center device having an information-based diagnostic function. (2) The remote monitoring and control device for an elevator according to claim 1, wherein the monitoring center device automatically sends out the cause of the failure and instructions for restoration and maintenance work. (3) The remote monitoring and control device for an elevator according to claim 1, wherein the abnormality detection conditions of the monitoring terminal can be changed by instructions from the monitoring center device. (4) The remote monitoring and control device for an elevator according to claim 1, wherein the execution schedule of the information transmission request from the monitoring center device to the monitoring terminal is variable.