JP3170558B2 - Elevator operating status display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an operation status display device such as an elevator operation status display device which displays a plurality of operation data of an elevator on a screen of a display device with the passage of time.

[0002]

2. Description of the Related Art Recently, an elevator maintenance management system is installed in a remote place by an abnormality detecting device attached to each of a plurality of elevators to monitor an operation state of the elevator and immediately when an abnormality occurs in the elevator, A remote monitoring method has been adopted in which a monitoring center connected via the PC is notified of a failure. In Japanese Patent Application Laid-Open No. 6-1556, a data collection device that constantly collects operation data of an elevator and stores the data in a memory is connected to the elevator control device. There is disclosed an invention of an abnormality detecting device which reads out preset operation data of an elevator including at least data of a movement locus of a car during a period from a memory and transmits the data together with an abnormality signal to a failure diagnosis device.

[0003] A display device is provided in the failure diagnosis device installed in the monitoring center. When the operation data of the elevator immediately before the occurrence of the abnormality is transmitted from the abnormality detection device together with the abnormality signal via the communication line, the display device is displayed. The operation data is displayed. The operation data of the elevator is transmitted from the abnormality detection device to the failure diagnosis device in the form of an ON / OFF signal, and only the ON signal of each operation data is displayed on the display device as a thick line with the passage of time. Observers stationed at the monitoring center compare the elevator operation data immediately before the occurrence of the abnormality displayed on the display device with the operation data immediately after the occurrence of the abnormality to accurately grasp the operation status of the elevator before and after the occurrence of the abnormality even in remote locations. It can be used to prepare for recovery work.

[0004]

By the way, in order to accurately grasp the operation state of the elevator, it is necessary to display various operation data on a display device and to examine the mutual relations. It is necessary to collectively display various kinds of operation data for a period of several minutes to several tens of minutes immediately before the occurrence. As described above, if the operation data for a period of several minutes or more than ten minutes is displayed on the display device, for example, the operation data for the ON period of 10 seconds or more can be clearly recognized on the display device. Operation data during an ON period of about seconds or less becomes difficult to identify on a display device.

Therefore, in order to clearly identify the operation data of the ON period of about 1 second, the time axis of the display form of the ON period of the operation data to be displayed on the display device is extended so that the ON period is short. If the operation data is also displayed on the display screen, the period of the operation data that can be displayed on one display screen is limited to about one or two minutes, and various operation data for a longer period is displayed on one display screen. And these cannot be compared and examined. Therefore, in order to compare and evaluate the operation of the elevator over the entire period, the display contents of the operation data separated into two or more screens must be switched and compared, and the analysis operability is significantly reduced. I will. The present invention has been made to solve such a problem in the prior art, and can display an instantaneous ON period or OFF period of operation data, and furthermore, various operation data of a sufficiently long period can be displayed on one display screen. It is an object of the present invention to provide an operation state display device for an elevator, which can collectively display the operation states.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention collects a plurality of operation data output from an elevator control device for controlling the operation of an elevator, stores the data in a storage means, and stores an abnormality in the elevator. Is generated, the data is read out from the storage means and displayed on the screen of the display device as a graph of operation data that changes on and off with the passage of time, and the interval between the ON period and the OFF period of the operation data is shorter than a predetermined time. In such a case, the interval is extended and output to the display device.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An elevator control device controls the operation of the elevator, checks the operating state of the elevator, and outputs the operation data. The elevator control device is provided with a data collection device, and collects and stores the operation data of the elevator output from the elevator control device. The stored operation data is read out at a predetermined timing, and transmitted to an operation state display device of the connected elevator via a communication line. When the ON period or the OFF period of the transmitted operation data is instantaneous, the ON period or the OFF period of the operation data is continued for a predetermined time so that the ON period or the OFF period is significantly longer than the ON periods of the other operation data. Try not to be short.

Hereinafter, a specific example in which the present invention is applied to a failure diagnosis apparatus for an elevator will be described in detail with reference to FIGS. FIG. 1 is a block diagram showing a configuration of an elevator failure diagnosis apparatus according to one embodiment of the present invention. In FIG. 1, B and C indicated by broken lines are a building in which an elevator (not shown) is installed and a monitoring center for monitoring the elevator. Regarding the configuration shown by the solid line in the building B, 1 is an elevator control device for controlling the operation of the elevator, 2 is an elevator control device 1
, An abnormality detection device that constantly checks the elevator operation data output from the elevator control device 1 and outputs an abnormal signal when an abnormal operation of the elevator is detected, and 3 is connected to the elevator control device 1 and controls the elevator control. A data collection device that collects and stores the elevator operation data output from the device 1 and reads and outputs the stored operation data when an abnormality signal is output from the abnormality detection device 2. Device 3
And a communication device that manages data exchange with a failure diagnosis device to be described later via a communication line.

Further, regarding the configuration of the data collection device 3, reference numeral 31 denotes a data collection unit for collecting operation data received from the elevator control device 1, and 32 denotes a data collection unit 31.
Elevator operation data collected by
When displayed on a data display unit to be described later, a drawing data editing unit for editing so as to be displayed in a more easily viewable form,
A data storage unit 33 stores the operation data edited by the drawing data editing unit 32 as necessary.

On the other hand, with respect to the configuration shown by a solid line in the monitoring center C for remotely monitoring the elevator, 4b is a communication device for controlling the exchange of data with the communication device 4a in the building B via a communication line. Is a failure diagnosis device that analyzes operation data of the elevator received by the communication device 4b via the communication line and diagnoses a failure of the elevator;
Reference numeral 61 in the failure diagnosis device 6 denotes a data display unit for displaying a plurality of operation data of the elevator received by the communication device 4b in the form of an operation data display graph indicated by a bold line only during a period of the ON signal. Line 5 connecting C
Is a communication line. The data collection device 3 is provided with a data reading unit (not shown), and when an abnormality signal is output from the abnormality detection device 2, a predetermined period before the abnormality occurs in the elevator, for example, several minutes to ten minutes. The operation data of the elevator for several minutes and for a predetermined period after the occurrence of the abnormality is read out and transmitted to the failure diagnosis device 6 via the communication device 4a.

Next, the operation of this embodiment will be described. When the elevator operates, the data collection unit 31 outputs various operation data output from the elevator control device 1 from time to time, such as an elevator travel signal, on / off data of safety shoes and door switches, data on full open doors, and data on closing doors. Various operation data of the elevator, such as data and door inversion data, are fetched and transferred to the drawing data editing unit 32. The drawing data editing unit 32 determines the on-time of various operation data transferred from the data collection unit 31, and if the time is shorter than a predetermined time interval, continues the on-time of the operation data for a predetermined time interval. The data to be edited is edited and transferred to the data storage unit 33 for storage.

When an abnormality occurs in the elevator and is detected by the abnormality detecting device 2, an abnormal signal is output to the data collecting device 3. When the data collection device 3 receives the abnormality signal, the data reading unit reads the operation data of the elevator for a predetermined period before the abnormality occurs in the elevator and for a predetermined period after the abnormality occurs from the data storage unit 33, and reads the communication device 4a The data is transmitted to the failure diagnosis device 6 in the monitoring center C via the communication line 5. The failure diagnosis device 6 causes the data display section 61 to display the received elevator operation data.

FIG. 2 is a time lapse graph of various operation data before and after the occurrence of an abnormality in the elevator displayed on the data display section 61. In the drawing, the ON signals are indicated by thick lines in the display of each signal. A is an elevator traveling signal, that is, a signal indicating that the vehicle is traveling, B is an open button signal,
C indicates an operation signal of a safety tissue, D indicates an operation signal of a door switch, E indicates a door closing signal, F indicates a door fully open signal, and G indicates a door inversion signal. In addition, the graph of the inverted signal of the door indicated by * indicates that the drawing data editing unit 32 displays a corrected signal in which the time interval is continued for a predetermined time. In addition, the actual operating time of the corrected signal is indicated by a plurality of symbols indicating the actual operating time, in addition to the mark *, on the graph of the operating signal.
By visually recognizing these symbols displayed on the data display section 61, it is possible to know the approximate actual operation time.

In the example shown in FIG. 2, when an abnormality occurs in the elevator, the traveling signal A is turned off, that is, the elevator is stopped, and at the same time, the door closing signal E is turned off. . In other words, it can be assumed that the abnormal operation of the elevator at this time is caused by the fact that the safety device of the elevator operated and the vehicle suddenly stopped because the door was opened during traveling of the elevator. However, at this time, the inverted signal of the door whose time interval has been corrected is on at the same time,
It can be seen that the malfunction of the elevator is not due to a malfunction, but to a mischief in which the passenger forcibly opened the door. In such a case, it is not necessary for the maintenance staff to go to the site, so that unnecessary dispatch can be omitted.

As described above, in this embodiment, various operation data for several minutes to several tens of minutes before and after the occurrence of an abnormality in the elevator is, for example, an operation signal which becomes an instantaneous short ON signal like an inverted signal. Since the ON signal is extended and displayed as a graph on the data display unit 61 over time,
It is possible to read the change of all operation data including the operation signal with a short ON signal during a long period of time before and after the occurrence of an abnormality in the elevator. Can be analyzed. Therefore, before starting the recovery work,
It is possible to take prompt and correct measures for the subsequent restoration work, and it is possible to reduce the time required for the restoration work for the abnormality of the elevator. In the present embodiment, the operation data to be displayed on the data display unit 61 is the signals indicated by the above-mentioned reference symbols (a) to (c). However, the present invention is not limited thereto.
The operation state of the open extension button signal may be added and displayed on the data display unit 61. As shown in FIG. 2, the graph of the operation data in which the ON signal period has been extended is indicated by adding an asterisk (*) near the graph or changing the color or density.
The actual ON signal period may be distinguished from the graph of the operation data displayed as it is.

[0016]

As described above, according to the present invention, a plurality of operation data output from the elevator control device are collected and stored in the storage means, and when an abnormality occurs in the elevator, the data is read out from the storage means. Displaying on the screen of the display device a graph of operation data that changes on and off with the passage of time, and when the interval of the on period or the off period of the operation data is shorter than a predetermined time, the interval is extended to extend the display device. Output, the instantaneous ON or OFF period of the operation data can be displayed, and
Since various operation data for a sufficiently long period can be collectively displayed on one display screen, the cause of the occurrence of the abnormality in the elevator can be analyzed in detail, accurately and early.

[Brief description of the drawings]

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

FIG. 2 is a time-lapse graph of various operation data of the elevator displayed on the data display unit.

[Explanation of symbols]

 Reference Signs List 1 elevator control device 2 abnormality detection device 3 data collection device 4a, 4b communication device 5 communication line 6 failure diagnosis device 31 data collection unit 32 drawing data editing unit 33 data storage unit 61 data display unit B building C monitoring center

Continued on the front page (72) Inventor Hajime Okamoto 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd. (72) Inventor Shinichiro Kawano 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Hitachi Building System Co., Ltd. In service (56) References JP-A-6-1556 (JP, A) JP-A-55-74972 (JP, A) JP-A-6-137901 (JP, A) (58) Fields investigated (Int. . ^7, DB name) B66B 3/00 - 5/28

Claims (1)

(57) [Claims] 1. An operation state display of an elevator, wherein a plurality of operation data of an elevator is displayed on a screen of a display device with the passage of time, and the operation state of the elevator is displayed by an on-off change of the operation data. In the device, the operation data output from the elevator control device that controls the operation of the elevator is collected and stored in the storage unit. When an abnormality occurs in the elevator, the operation data is read out from the storage unit and displayed on the screen of the display device. It is displayed as a graph of operation data that changes on and off with the passage of time, and when the interval of the on period or the off period of the operation data is shorter than a predetermined time, the interval is extended and output to the display device. An operation state display device for an elevator, characterized in that: