JPH0993660A - Remote monitor diagnostic system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitor diagnostic system for elevators in which fault information for elevators having a fault is quickly and automatically reported even when while remote diagnostic measurement data are collected, a communication channel is busy, and it is not required to install newly a communication channel without causing a hindrance to a remote monitor function. SOLUTION: A terminal equipment 1a (1b) of an elevator 3a (3b) is provided with a changeover control means 12a (12b) conducting channel changeover control to connect the terminal equipment to an abnormal monitor center 6 when an abnormal monitor means 13a (13b) sends an abnormal notice signal. Upon the receipt of the abnormal notice signal when other terminal equipment connects the a measurement data collection center 7 and a communication channel 4 is busy, the changeover control means sends a channel open request signal to other terminal equipment via an interphone line to open the communication channel 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remote monitoring / diagnosing system having both a remote monitoring function based on abnormality information and a remote diagnostic function based on measurement data.

[0002]

2. Description of the Related Art Today, with many high-rise buildings and high-rise houses being built, elevators have become indispensable as means of moving people and carrying luggage. For example, elevators with improved performance such as high-speed elevators. However, at the same time, there is also a strong demand for improvement of the elevator management system that can prevent a failure in advance and can promptly respond in the event of a failure.

Therefore, in order to meet such a demand, a remote monitoring device as disclosed in, for example, Japanese Patent Laid-Open No. 63-288880 is used to immediately send maintenance personnel of a maintenance company when an abnormality such as a failure occurs. An elevator remote monitoring system that can be dispatched to the site has been conventionally proposed. That is, such a conventional proposal is such that when an abnormality such as a failure occurs, the elevator control device generates a signal according to the content of the abnormality, and the terminal device that detects this signal informs the abnormality that has occurred (hereinafter referred to as abnormality information. Is called) to the abnormality monitoring center of the maintenance company via a communication line. However, the above-mentioned remote monitoring system is only related to the response after the occurrence of an abnormality, and thus it has not been possible to prevent the failure of the elevator in advance.

On the other hand, the conventional proposal disclosed in Japanese Unexamined Patent Publication No. 5-178557 has a remote monitoring function of automatically reporting abnormality information to an abnormality monitoring center when an abnormality such as a failure occurs. Whether or not there is a sign of failure in the elevator by measuring and accumulating various data such as the number of times each elevator component operates and the traveling data of the car, and sending it periodically to the measurement data collection center of the maintenance company. Since the system has a remote diagnosis function that can judge whether or not a failure has occurred, the system is not only capable of promptly responding to a failure, but also capable of preventing the failure.

[0005]

However, the conventional system having both the remote monitoring function and the remote diagnostic function as described above is not without problems. That is, in such a conventional technique, the abnormality information for emergency contact and the measurement data for remote diagnosis are transmitted to the abnormality monitoring center and the measurement data collection center via the same communication line, respectively. In the case of a building equipped with, if an abnormality such as a failure occurs in another elevator while the measurement data collection center is collecting the measurement data of one elevator, the communication line is blocked by the transmission of the measurement data, It was not possible to immediately report the abnormality information to the abnormality monitoring center automatically, and there was a possibility that an emergency situation could not be dealt with. If the communication line for transmitting the abnormality information and the communication line for transmitting the measurement data are separately provided, such an inconvenience does not occur, but it is not preferable to install a new communication line because the cost increases.

The present invention has been made in view of the above problems of the prior art, and an object thereof is abnormality information of an elevator in which an abnormality has occurred even when a communication line is blocked while collecting measurement data for remote diagnosis. It is an object of the present invention to provide a remote monitoring / diagnosing system for an elevator, which can promptly and automatically notify the user, does not hinder the remote monitoring function, and does not need to install a new communication line.

[0007]

The above-mentioned object of the present invention is to provide data measuring means for each terminal device connected to each control device of a plurality of elevators to measure operation data of the elevator, and the elevator. In the remote monitoring and diagnostic system, the terminal monitoring device is connected to the measurement data collection center and the abnormality monitoring center through a common communication line so as to be switchable. The terminal device is provided with switching control means for performing line switching control for connecting the terminal device to the abnormality monitoring center when the abnormality monitoring means detects an abnormality and transmits an abnormality notification signal. When the means receives the abnormality notification signal when another terminal device is connected to the measurement data collection center and the communication line is blocked, A line release request signal for opening the communication line through the interphone circuit is achieved by configured to transmit to the other terminal devices.

[0008]

According to the above remote monitoring and diagnosis system for an elevator, when a data request is made to the terminal device of an elevator from the measurement data collection center and the communication line is blocked during the collection of the measurement data for remote diagnosis. , When an abnormality such as a failure occurs in another elevator, the switching control means of the abnormality-occurring elevator transmits a line release request signal to the terminal device of the elevator that is collecting measurement data through the intercom line. Immediately opens the communication line. Therefore, if this system is adopted, it is possible to promptly and automatically notify the abnormality monitoring center of abnormality information of the elevator in which an abnormality has occurred, without newly installing a communication line.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of an elevator remote monitoring / diagnosing system according to this embodiment.
This embodiment is an example in which the present invention is applied to a customer building equipped with two elevators, and is denoted by reference numerals 2a and 2 in the drawing.
b is a control device for the elevator bodies 3a and 3b, 1
a and 1b are terminal devices for remote monitoring and diagnosis connected to the control devices 2a and 2b, respectively, and 4 is each terminal device 1a and 1b.
A communication line connected to the line interfaces 11a and 11b in b, 5 is a switch attached to this communication line 4, 6 is an abnormality monitoring center of a maintenance company, and 7 is a measurement data collection center of the maintenance company. The abnormality monitoring center 6 and the measurement data collection center 7 located at a location distant from the customer building are selectively connected to the communication line 4 by the switching of the switch 5. It has become so.

Further, the terminal devices 1a, 1 for remote monitoring and diagnosis
b are the line interfaces 11a and 1 respectively.
Switching control means 12a, 12b for performing basic control of 1b and switching of usage rights of the communication line 4, and a control device 2a,
2b, communication means 15a, 15b for communicating with 2b,
The elevator main bodies 3a, 3 are selected from the control information of the control devices 2a, 2b obtained via the communication means 15a, 15b.
Abnormality monitoring means 13a, 13b for detecting the data representing the abnormality of b and outputting abnormal information including the abnormality alarm signal to the switching control means 12a, 12b when the abnormality is detected.
From the control information of the control devices 2a and 2b, which are also obtained through the communication means 15a and 15b, various data such as the number of times of operation of each component of the elevator main bodies 3a and 3b, the operation time, and the traveling data of the car are displayed. Intercom slave unit 3 in the car via data measuring means 14a and 14b for measuring and accumulating and intercom master unit 8 installed in a machine room or the like.
The interphone interfaces 16a and 16b are provided which are connected to the communication lines 4 via the switching control means 12a and 12b, while being connected to the 1a and 31b.

That is, the abnormality monitoring means 13a, 13b
Respectively, the control data of the control devices 2a and 2b are periodically monitored, and when a signal indicating an abnormality is detected, the abnormality information including the abnormality notification signal is output to the switching control means 12a and 12b. Then, the switching control means 12a, 12b, which have received the abnormality notification signal, respectively control the line interfaces 11a, 11b to connect the terminal devices 1a, 1b to the abnormality monitoring center 6 via the communication line 4, Abnormality information about the elevator bodies 3a and 3b is transmitted to the center 6.

Further, these switching control means 12a,
12b are respectively connected to the data measuring means 14a, 14b, and when there is a data request from the measurement data collection center 7, the measured data of the elevator main bodies 3a, 3b accumulated in the data measuring means 14a, 14b, The data is transmitted to the center 7 via the communication line 4.

Further, when the switching control means 12a receives an abnormality alarm signal from the abnormality monitoring means 13a when the terminal device 1b is connected to the measurement data collection center 7 and the communication line 4 is blocked, the intercom master signal is received. A line open request signal for opening the communication line 4 is transmitted to the terminal device 1b via the machine 8. Similarly, when the switching control means 12b receives an abnormality alarm signal from the abnormality monitoring means 13b when the terminal device 1a is connected to the measurement data collection center 7 and the communication line 4 is blocked, the intercom master unit 8 Via the terminal device 1
A line open request signal for opening the communication line 4 is transmitted to a.

The elevator main bodies 3a and 3b are designed so that operation control such as motor control is performed by the control signals of the control devices 2a and 2b, respectively, and are installed in the cars of the elevator main bodies 3a and 3b. The intercom master unit 8 and the intercom interface 16 are used by using the intercom slave units 31a and 31b.
a, 16b, the communication line 4, etc., through the abnormality monitoring center 6
It is possible to call with. Further, the control devices 2a and 2b are respectively provided with communication means 21a and 21b for performing communication with the terminal devices 1a and 1b for remote monitoring and diagnosis.

Therefore, an abnormality such as a failure occurs in the elevator bodies 3a and 3b, and the abnormality information output from the abnormality monitoring means 13a and 13b of the terminal devices 1a and 1b is notified to the abnormality monitoring center 6 via the communication line 4. In this case, the center 6 can promptly respond such as dispatching maintenance personnel to the site immediately, and the intercom slaves 31a, 31
When a call is made to the abnormality monitoring center 6 from b, the person in charge of the center 6 can give an appropriate instruction to the passenger in the car.

On the other hand, in the measurement data collection center 7, the data measuring means 14a, 14 of the terminal devices 1a, 1b are regularly arranged.
Since the measurement data of the elevator main bodies 3a and 3b accumulated by b are collected, it is possible to remotely diagnose whether or not there is a sign of failure occurrence in the elevator main bodies 3a and 3b by analyzing the data. The data will be used as detailed reference data during regular inspection work and when failures occur.

Next, regarding the specific operation of this embodiment,
This will be described with reference to the flowchart of FIG.

Now, the elevator bodies 3a and 3b are operating normally, and one of the terminal devices 1a for remote monitoring and diagnosis is being operated.
However, it is assumed that the measurement data collection center 7 periodically requests data. This data request is sent from the measurement data collection center 7 via the communication line 4 to the terminal device 1a.
Is transmitted to the data measuring means 14a as a type code signal, and the data measuring means 14a having received this signal transmits the measurement data corresponding to the type code to the center 7.
At this time, the terminal device 1a and the measurement data collection center 7
The communication lines 4 are kept connected to each other until collection of necessary measurement data is completed.

The operation of the switching control means 12a during this period will be described with reference to FIG. 2. In the step S1 "line in use?", The communication line 4 is in use at the time when the data request is started. Therefore, the process proceeds to the "Yes" direction, and the next step "S2 is" Measuring data collection? "Is being collected. Since the line release request signal has not arrived from the switching control means 12b of another unit, "N
In the next step S6, the measurement data collection is continued.

However, if some abnormality occurs in the elevator main body 3b when the terminal device 1a and the measurement data collection center 7 are connected in this way,
The abnormality monitoring means 13b of the terminal device 1b detects an abnormality, outputs abnormality information including an abnormality notification signal, and the switching control means 12b which has received the abnormality notification signal controls the line interface 11b to control the terminal device. 1b and the abnormality monitoring center 6 are to be connected, but the communication line 4 is blocked because the other terminal device 1a is connected to the measurement data collection center 7. In such a case, the switching control means 12b
Outputs a line release request signal to another terminal device 1a via the intercom interface 16b and the intercom master unit 8, and this request signal is transmitted to the switching control means 12a via the intercom interface 16a. The switching control means 12a immediately opens the communication line 4.

Specifically, when the switching control means 12a receives the line release request signal from the switching control means 12b via the intercom line, the type code signal of the measurement data requested by the measurement data collection center 7 is ignored. Then, a communication end command is transmitted to the center 7, and then the line interface 11a is controlled to terminate the connection with the measurement data collection center 7 and open the communication line 4. The operation of the switching control means 12a during this period will be described with reference to FIG. 2. In step S3, "Is there a line release request for other units?", The process proceeds to the "Yes" direction, and in the next step S4, an abnormality occurs in the other units. A communication end command meaning that it has occurred is transmitted to the measurement data collection center 7, the connection with the center 7 is terminated and the communication line 4 is opened in the next step S5, and the abnormality information of another machine is transmitted to the communication line 4. The abnormality monitoring center 6 can be automatically notified via this.

Therefore, when an abnormality occurs in the elevator main body 3b and the terminal device 1b tries to make an emergency contact to the abnormality monitoring center 6, another terminal device 1a is connected to the measurement data collection center 7 and the communication line 4 is connected. Even if it is blocked, the switching control means 12 is connected via the intercom line.
The communication line 4 is opened immediately after the line opening request signal is transmitted from the switch a to the switching control means 12b, and the elevator main body 3
Abnormality information relating to b will be automatically notified to the abnormality monitoring center 6 promptly, and the center 6 that has received the notification can take prompt action such as urging a maintenance person to the site. The measurement data collection center 7 to which the communication end command has been transmitted from the terminal device 1a despite the collection of the measurement data remains in the standby state for a while when the connection with the communication line 4 is released. When the time has elapsed, the data collection that was interrupted is restarted.

Thus, in this embodiment, the terminal device 1a
(Or 1b), when a data request is made from the measurement data collection center 7 and the communication line 4 is blocked, if another terminal device 1b (or 1a) generates an abnormal alarm signal, this terminal device 1b The switching control means 12b (or 12a) of 1b (or 1a) transmits a line release request signal to the terminal device 1a (or 1b) of the elevator which is collecting the measurement data via the intercom line, and this terminal device 1a (or 1b) immediately opens the communication line 4, so that no new communication line or special device needs to be installed.
It is possible to promptly and automatically notify the abnormality monitoring center 6 of abnormality information regarding the elevator in which an abnormality has occurred. Therefore, a system having both a remote diagnosis function by periodically collecting measurement data and a remote monitoring function that does not hinder emergency response when an abnormal situation occurs is realized at low cost.

In the above embodiment, the case where the present invention is applied to a customer building equipped with two elevators is illustrated, but each terminal device of three or more elevators collects measurement data via a common communication line. It goes without saying that the present invention can be applied even when the center and the abnormality monitoring center are switchably connected. That is, when the communication line is blocked during the measurement data collection of one elevator and an abnormality such as a failure occurs in another elevator and an abnormality alarm signal is output, the terminal device of this abnormality remains. Since the line release request signal is transmitted to the elevator terminal device of the above through the intercom line, the elevator terminal device during the measurement data collection immediately opens the communication line, and therefore the elevator terminal device in which the abnormality has occurred. The abnormal information can be promptly automatically notified from the abnormal monitoring center.

[0026]

As described above, according to the present invention,
In a building equipped with multiple elevators, when a measurement data collection center makes a data request to a terminal device of an elevator and the communication line is blocked, an abnormality occurs in another elevator A terminal open request signal is sent from the terminal device of the above to the terminal device of the elevator that is collecting the measurement data via the intercom line, so that the communication line is opened immediately, so the abnormal information of the elevator where the abnormality occurred Can be quickly and automatically notified to the anomaly monitoring center at any time.Therefore, the remote diagnostic function of the elevator by collecting the measurement data on a regular basis and the remote monitoring function of the elevator that does not hinder emergency response in the event of an abnormal situation. Providing an excellent system that combines both at low cost without the need to install new communication lines, etc. It can be.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of an elevator remote monitoring and diagnosis system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a specific operation of a switching control means in the remote monitoring / diagnosis terminal device in the embodiment.

[Explanation of symbols]

 1a, 1b Terminal device 2a, 2b Control device 3a, 3b Elevator body 4 Communication line 5 Exchanger 6 Abnormality monitoring center 7 Measurement data collection center 8 Intercom master unit 12a, 12b Switching control means 13a, 13b Abnormality monitoring means 14a, 14b Data Measuring means 31a, 31b Intercom handset

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichiro Kono 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (72) Kiyoshi Kawanishi 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside the Hitachi Building System Service

Claims (1)

[Claims] 1. Each terminal device connected to each control device of a plurality of elevators comprises data measuring means for measuring operation data of the elevator and abnormality monitoring means for monitoring abnormality of the elevator. A remote monitoring diagnostic system in which these terminal devices are switchably connected to a measurement data collection center and an abnormality monitoring center via a common communication line, and the terminal device has an abnormality monitoring means. Is provided and an abnormal alarm signal is transmitted, switching control means is provided for performing line switching control for connecting the terminal device to the abnormality monitoring center, and this switching control means is used by another terminal device to perform the measurement. If the abnormal alarm signal is received while the communication line is blocked by being connected to the data collection center, the line must be opened to open this communication line. A remote monitoring and diagnostic system for an elevator, characterized in that the request signal is transmitted to another terminal device via an intercom line.