JP3349618B2 - Elevator monitoring system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator monitoring system for reliably restoring maintenance information data stored in an elevator control device of each elevator.

[0002]

2. Description of the Related Art In the prior art, when a microcomputer of an elevator is out of order or a power failure occurs, a volatile memory R
When the maintenance information data on the AM has been lost, the maintenance staff must rewrite the data at a later date using the maintenance portable terminal, and it is effective only for a part of the data, and all the data is restored to the original state. That was impossible.

[0005] FIG. 5 is a diagram showing a conventional configuration when rewriting is performed when maintenance information data is lost. In FIG. 5, reference numeral 100 denotes an elevator control device, 1 denotes a control unit for controlling the movement of the elevator, and 2 denotes a microcomputer. In the microcomputer 2, 2a
Is a rewritable volatile memory for storing data that needs to be rewritten, and 2b is a ROM described later.
CPU, which performs control processing and the like according to a control program stored in the ROM, shows a ROM which is a nonvolatile memory storing the control program and the like.

[0004] Reference numeral 3 denotes a maintenance portable terminal for referring to data in the RAM 2a at the time of maintenance, and reference numeral 4 denotes a transmission interface for transmitting data in the RAM 2a to the outside.

Next, the operation will be described. Microcomputer 2
When a failure occurs or a power failure occurs, the maintenance information data stored in the RAM 2a is lost. To recover the maintenance information data, the maintenance staff goes to the site with the maintenance portable terminal 3 and connects it to the board on which the microcomputer 2 of the control unit 1 of the elevator control device 100 is mounted. By operating the portable terminal 3, writing to the RAM 2a was performed manually.

[0006]

In the conventional elevator monitoring system, the maintenance information data is rewritten as described above. Therefore, since the maintenance information data is rewritten by the maintenance staff himself, the work time and the workload are increased. In addition, there is a possibility that wrong data is written. In addition, since it is a manual operation, it is very difficult to rewrite all the maintenance information data due to time constraints and the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and transfers maintenance information data stored in a monitoring center to a microcomputer of an elevator control device even when maintenance information data is lost. Accordingly, an object of the present invention is to provide an elevator monitoring system in which maintenance information data precious for maintenance of an elevator can be reliably restored in a short time.

[0008]

SUMMARY OF THE INVENTION In view of the above object, a first invention of the present invention controls an elevator,
A control unit including a volatile maintenance information storage memory for storing the maintenance information data, at least one elevator control device provided with a modem unit for communicating with the outside, and a host computer; A monitoring unit that monitors the control device and includes a database that stores respective maintenance information data; a monitoring center that includes a modem unit that communicates with each elevator control device; and a monitoring unit that monitors the modem unit of the elevator control device. A telephone line for connecting a modem section of the center; a maintenance information abnormality detecting means for detecting an abnormality in the maintenance information data in the maintenance information storage memory of the elevator control device; and the maintenance information storage memory of the elevator control device in which the abnormality is detected. Then, the maintenance information data is written from the monitoring center database via the telephone line. In an elevator monitoring system characterized by comprising cormorants and maintenance information writing means.

According to a second aspect of the present invention, there is provided a maintenance portable terminal having a microcomputer, wherein the maintenance information abnormality detecting means and the maintenance information writing means are detachably connected to a control unit of the elevator control device. The elevator monitoring system according to claim 1, wherein:

A third aspect of the present invention is the elevator monitoring system according to claim 1, wherein said maintenance information abnormality detecting means and maintenance information writing means comprise a monitoring unit of said monitoring center.

[Action]

In the first aspect of the present invention, when an abnormality in the maintenance information data in the maintenance information storage memory of the elevator control device is detected by the maintenance information abnormality detection means, the maintenance information writing means causes the maintenance information writing means to execute the operation of each elevator control device. The maintenance information data is written (rewritten) from the database of the monitoring center storing the maintenance information data to the maintenance information storage memory of the elevator control device via a telephone line.

In the second aspect of the present invention, the above-described detection and writing are performed by a maintenance portable terminal detachably connected to a control unit of the elevator control device.

In the third aspect of the present invention, the above detection and writing are performed by the monitoring unit of the monitoring center.

[0014]

Embodiments will be described below.

Embodiment 1 FIG. FIG. 1 is a diagram showing a configuration of an elevator monitoring system according to one embodiment of the present invention. The system comprises one monitoring center 200 and at least one elevator control device 110 monitored and controlled thereby,
Maintenance portable terminal 3 connected to this elevator control device
Consists of zero. In the figure, the same or corresponding parts as those of the conventional art are denoted by the same reference numerals.

In the elevator control device 110, 1 is a control unit for controlling the movement of the elevator, 2 is a microcomputer, 2a is a RAM (maintenance information storage memory) storing maintenance information data, 2b is a CPU, 2c is a ROM, 4 is a transmission interface.

Reference numeral 5 denotes the maintenance information data stored in the RAM 2a of the microcomputer 2 of the control unit 1, which is sent to the monitoring center 200 which remotely monitors the status of the elevator, and conversely, the data from the monitoring center 200 is taken into the control unit 1. 6 is a transmission interface for exchanging data with the control unit 1, 7 is a microcomputer, and 7a, 7b, 7c
Are RAM, CPU, and RO constituting the microcomputer 7, respectively.
M.

Reference numeral 8 denotes a transmission interface for transmitting data from the control unit 1 to the monitoring center 200, and conversely, exchanging data with the modem unit 10 on the monitoring center side in order to fetch data from the monitoring center 200 into the control unit 1. It is.

Reference numeral 30 denotes a maintenance portable terminal which is connected to the control unit 1 at the time of maintenance and detects the abnormality of the data in the RAM 2a and controls the writing of the maintenance information data from the monitoring center 200 when the abnormality is detected. It is. The maintenance portable terminal 30 includes a microcomputer, and performs processing based on a control program (especially not shown) built in the microcomputer in accordance with, for example, a command keyed in by a maintenance person. Reference numeral 9 denotes a telephone line used for data communication between the modem unit 5 on the elevator control device side and the modem unit 10 on the monitoring center side.

On the other hand, in the monitoring center 200, reference numeral 10 denotes a modem unit on the monitoring center 200 side, and reference numeral 11 denotes data transmission from the monitoring center 200 to the control unit 1 on the elevator control device side, and conversely, data from the control unit 1 Monitoring center 200
A transmission interface for exchanging data with the modem unit 5 on the elevator control device side for taking in
Denotes a microcomputer, and 12a, 12b, and 12c denote a RAM, a CPU, and a ROM that constitute the microcomputer 12, respectively. 1
Reference numeral 3 denotes a transmission interface for exchanging data with the monitoring unit 14.

Reference numeral 14 denotes a monitoring unit which actually performs monitoring control of each elevator control device connected to the monitoring center 200, 15 denotes a transmission interface for exchanging data with the modem unit 10, and 16 denotes an inside of the monitoring unit 14. A host computer 17 for processing and editing data from the control unit 1 taken into the host computer 17; a database for storing data processed and edited by the host computer 16 for storing maintenance information data of each elevator control device ing.

The maintenance information abnormality detecting means and the maintenance information writing means are basically constituted by the maintenance portable terminal 30.

FIG. 2 is a flowchart showing a series of operations of the system shown in FIG. Next, the operation will be described in accordance with this. First, the maintenance portable terminal 30 is connected to a board on which the microcomputer 2 of the control unit 1 of the elevator control device 110 is mounted when the maintenance staff checks the elevator (step S1).
Next, the RAM 2 of the microcomputer 2 is
Abnormality detection is performed to check if there is any abnormality in the contents of a.
(Step S2).

Next, if an abnormality is detected, a request for connection between the control unit 1 and the monitoring unit 14 is output from the maintenance portable terminal 30 to the monitoring center 200 (step S3). next,
In response to the connection request from the monitoring center 200, a connection OK signal is input to the maintenance portable terminal 30 (step S
4) The repair item is selected in the maintenance data repair menu, and the maintenance information repair request is sent to the monitoring unit 14 of the monitoring center 200.
(Step S5). In the case of connection NG in step S4, a connection request is output again.

Next, the maintenance information repair request is sent to the monitoring center 20.
When the data is input to the monitoring unit 14, the necessary maintenance information data in the database 17 is written from the monitoring unit 14 to the RAM 2a on the microcomputer 2 of the control unit 1 of the elevator control device 110 (step S6). Then, when the writing of all necessary data is normally performed and completed, the writing (rewriting) of the maintenance information data ends here. When the data writing is not performed normally, the data writing is performed again (step S7).

Embodiment 2 FIG. FIG. 3 is a diagram showing a configuration of an elevator monitoring system according to another embodiment of the present invention. The system comprises one monitoring center 210 and at least one elevator controller 120 monitored and controlled thereby.
Consists of In this embodiment, the maintenance portable terminal is not used, and the abnormality detection of the maintenance information data in the RAM 2b of the control unit 1 and the writing of the maintenance information data from the monitoring center 210 side are all performed by the host of the monitoring unit 14 of the monitoring center 210. This is performed under the control of the computer 16a.

The maintenance information abnormality detecting means and the maintenance information writing means are basically constituted by the monitoring unit 14.

FIG. 4 is a flowchart showing a series of operations of the system shown in FIG. Next, the operation will be described in accordance with this. First, the monitoring unit 14 periodically collects maintenance information data from the control unit 1 of each elevator control device.
(Step S1). Then, the contents of the collected maintenance information data are compared with the contents of the previously collected data, and it is determined by the host computer 16a of the monitoring unit 14 whether or not there is any abnormality in the manner and degree of change of the data (step S2). .

If it is determined in step S2 that the abnormality has occurred, the monitoring unit 14 outputs the previously collected maintenance information data stored in the database 17 to the control unit 1 of the elevator control unit 120. RAM2
is written to a (step S3). Then, when the writing of all necessary data is normally performed and completed, the writing (rewriting) of the maintenance information data ends here. If not successful, try to write data again
(Step S4).

[0030]

As described above, according to the first aspect of the present invention, when the abnormality of the maintenance information data in the maintenance information storage memory of the elevator control device is detected by the maintenance information abnormality detection means, the maintenance information writing means. By writing the maintenance information data (rewriting) from the database of the monitoring center that stores the maintenance information data of each elevator control device to the maintenance information storage memory of the elevator control device via the telephone line, Even if maintenance information data is lost due to a failure, power failure, etc., there is no need for the maintenance staff to directly write data as in the past, and efficient maintenance work that can restore all data to its original state The effect of being able to provide an elevator monitoring system that can be performed is obtained.

In the second aspect of the present invention, the above-described detection and writing are performed by the maintenance portable terminal detachably connected to the control unit of the elevator control device. There are obtained effects such as provision of an elevator monitoring system that can be realized without increasing the number.

In the third aspect of the present invention, the above-described detection and writing are performed by the monitoring unit of the monitoring center, so that the abnormality in the maintenance information data of the control unit of each elevator control device is determined by the monitoring center. Automatically detected,
It is not necessary for the maintenance staff to connect the maintenance portable terminal to each elevator control device, and effects such as providing an elevator monitoring system capable of reducing the amount of maintenance work can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an elevator monitoring system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a series of operations of the system of FIG. 1;

FIG. 3 is a diagram showing a configuration of an elevator monitoring system according to another embodiment of the present invention.

FIG. 4 is a flowchart showing a series of operations of the system of FIG. 3;

FIG. 5 is a diagram showing a conventional configuration at the time of writing maintenance information data.

[Explanation of symbols]

1 control unit, 2, 7, 12 microcomputer (microcomputer), 2a, 7a, 12a RAM, 2b, 7b,
12b CPU, 2c, 7c, 12c ROM, 4,
6, 8, 11, 13, 15 transmission interface,
5, 10 modem section, 9 telephone line, 14 monitoring section, 1
6, 16a Host computer, 17, database, 30 portable terminal for maintenance, 110, 120 elevator control device, 200, 210 monitoring center.

Claims (3)

(57) [Claims] At least one elevator provided with a control unit for controlling an elevator and including a volatile maintenance information storage memory for storing maintenance information data of the elevator and a modem unit for communicating with the outside. A monitoring unit having a control unit and a host computer, for monitoring the elevator control unit, including a database including a database storing respective maintenance information data, and a modem unit for communicating with each elevator control unit; A center, a telephone line connecting a modem section of the elevator control device and a modem section of the monitoring center, a maintenance information abnormality detecting means for detecting an abnormality of maintenance information data in a maintenance information storage memory of the elevator control device, In the maintenance information storage memory of the detected elevator control device, the database of the monitoring center is used. Elevator monitoring system characterized by comprising a, and maintenance information writing means for writing service information data over the serial telephone line. 2. The maintenance information abnormality detecting means and the maintenance information writing means comprise a maintenance portable terminal having a microcomputer, which is detachably connected to a control unit of the elevator control device. Item 2. An elevator monitoring system according to Item 1. 3. The elevator monitoring system according to claim 1, wherein the maintenance information abnormality detecting means and the maintenance information writing means comprise a monitoring unit of the monitoring center.