JP2003095553A - Elevator maintenance tool safety system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent abnormal operation of a maintenance tool and an elevator by a third party. SOLUTION: An elevator monitor center 6 has a program transmission means 23 to transmit a maintenance inspection program 17 to the maintenance tool of a transmission demanding source in accordance with a transmission demand of the maintenance inspection program 17 from the maintenance tool 1 under an elevator maintenance tool safety system to secure safety in the elevator 7 and on the portable type maintenance tool 1. Additionally, the maintenance tool 1 has a transmission demanding means to transmit the transmission demand of the maintenance inspection program to the elevator monitor center 6 in accordance with an operational indication, a maintenance inspection practicing means to practice maintenance inspection against the elevator 7 in accordance with the maintenance inspection program 17 received from the elevator monitor center and a program erasing means to erase the maintenance inspection program at a point of time when the maintenance inspection against the elevator is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator maintenance tool for performing maintenance and inspection of an elevator incorporated in each building, and more particularly to an elevator maintenance tool safety system for ensuring the safety of this maintenance tool.

[0002]

2. Description of the Related Art In recent years, in elevators installed in buildings such as buildings and condominiums, the movement position of a "car" that carries passengers and moves between floors is controlled by digital control using a computer. . Therefore, it is very important to regularly maintain and check that such a computer-controlled elevator operates normally in order to ensure the safety of the user of the elevator.

In the maintenance and inspection work of the computer-controlled elevator, various test data are applied to the control unit incorporated in the elevator to verify the data indicating the actual movement position of the "car". Or update various setting data set in this control unit. Then, data of maintenance inspection results such as control responses and setting data is collected.

As a maintenance tool for maintaining and inspecting the operation of such a computer-controlled elevator, it suffices that data can be input / output to / from a control unit incorporated in the elevator, so that a worker can easily carry it. A maintenance tool composed of a portable information terminal capable of performing is used.

This maintenance tool is a maintenance inspection program (application program) for performing the above-described maintenance inspection processing for an elevator on a commercially available portable information terminal.
Is installed. Then, the input / output port of the maintenance tool and the external control terminal of the control unit incorporated in the elevator are connected by a communication cable or an optical communication device. Then, when the worker activates the maintenance inspection program of the maintenance tool, the maintenance inspection process for the operating state of the elevator is automatically performed, and the maintenance inspection result data is automatically collected in the maintenance tool.

[0006] The worker transmits the data of the maintenance inspection result collected in the maintenance tool to the elevator monitoring center via the communication network, or takes the maintenance tool home to the installation location of the elevator monitoring center and directly sends the data. I was inputting to the elevator monitoring center.

[0007]

However, even in the maintenance tool for automatically performing the maintenance inspection for the operation of the elevator, there are the following problems to be solved.

That is, in the elevator maintenance tool, a password input is required when the OS of the portable terminal itself which constitutes the maintenance tool is activated, so that the third embodiment can be easily performed.
Personnel cannot operate this maintenance tool.

However, the password system for starting the OS of the portable terminal itself is a rudimentary password system, and can be easily broken by a malicious third party.

For this reason, if the maintenance tool leaks to a person other than the parties concerned for some reason and the password system is deciphered, a malicious third party operates the maintenance tool to operate the maintenance unit of the elevator. There is a possibility that the setting data may be changed, and there is a risk that the elevator passengers would be harmed.

The present invention has been made in view of such circumstances, and an object of the present invention is to make a maintenance tool malicious even if the maintenance inspection program exists in the maintenance tool only when necessary. Even if a third party obtains the elevator maintenance tool safety system, the third party cannot operate the maintenance tool to tamper with the setting data of the elevator and ensure the safety of the maintenance tool and the elevator. The purpose is to provide.

[0012]

SUMMARY OF THE INVENTION The present invention is selectively connected via communication means to a control unit incorporated in an elevator to control the operation of the elevator and, in the connected state, to the operating state of the elevator. It is applied to an elevator maintenance tool safety system that secures the safety of a portable maintenance tool that executes maintenance inspection and transmits the maintenance inspection result to the elevator monitoring center via a communication line.

In order to solve the above problems, in the elevator maintenance tool safety system of the present invention, the maintenance inspection program is sent to the elevator monitoring center in response to the maintenance inspection program transmission request from the maintenance tool. Program transmission means for transmitting to the maintenance tool of the transmission request source is added.

Further, transmission request means for transmitting to the maintenance tool a transmission request for the maintenance inspection program to the elevator monitoring center based on the operation instruction, and maintenance inspection for the elevator based on the maintenance inspection program received from the elevator monitoring center. And a program erasing means for erasing the maintenance / inspection program when the maintenance / inspection for the elevator is completed.

In the elevator maintenance tool safety system configured as described above, a worker who intends to perform maintenance and inspection on the elevator operates the maintenance tool immediately before the start of the work, and the elevator monitoring center starts the maintenance and inspection program. To download. Then, the maintenance tool is caused to perform maintenance and inspection for the elevator by using the downloaded maintenance and inspection program. When the maintenance inspection for the elevator is completed, the maintenance inspection program is automatically deleted.

Therefore, in this maintenance tool, since the maintenance inspection program is not stored in the normal period, even if this maintenance tool is passed to a third party, it is easy to use the maintenance tool to lift the elevator. Maintenance inspection cannot be performed. Therefore, the safety of this maintenance tool can be ensured.

Another aspect of the present invention is to receive the maintenance tool of the elevator maintenance tool safety system of the above-mentioned invention, when a certain time has elapsed from the time when the maintenance inspection program was received from the elevator monitoring center. A program erasing means for erasing the maintenance inspection program is added.

In the elevator maintenance tool safety system configured as described above, the worker downloads the maintenance inspection program from the elevator monitoring center,
When the maintenance and inspection work is not performed on the elevator for a certain period of time, the maintenance and inspection program is automatically deleted, so that the safety of the maintenance tool can be further improved.

Another invention is the elevator maintenance tool safety system of the above-mentioned invention, wherein each program erasing means is executed in accordance with a program transmitted from the elevator monitoring center at the same time as the maintenance inspection program.

In the elevator maintenance tool safety system configured as described above, since the downloaded maintenance inspection program is also automatically erased by the downloaded program, the maintenance tool itself is operated to cancel the automatic elimination. Since it is not possible, the safety of the maintenance inspection for the elevator can be further improved.

Another aspect of the present invention relates to the elevator monitoring center of the elevator maintenance tool safety system of the above-mentioned invention, and further, the password (personal identification number) transmitted from the maintenance tool, which is the transmission request source of the maintenance inspection program, is in advance. Only when the password (password) set in the maintenance tool matches, a password check means is added to send the maintenance inspection program to the maintenance tool.

In the elevator maintenance tool safety system configured as described above, a password check is performed on the password (personal identification number) input by the operator to the maintenance tool at the elevator monitoring center side, and then the maintenance inspection program is sent to the maintenance tool. Since the information is transmitted, the safety of maintenance and inspection of the elevator can be further improved.

Further, another aspect of the present invention is, in addition to the elevator monitoring center of the elevator maintenance tool safety system of the above-mentioned invention, a range of responsibility for storing the range of responsibility of the elevator where the maintenance tool performs maintenance inspection. A storage means, a location search means for searching the location of the maintenance tool, and an alarm output means for outputting an alarm when the detected location is out of the area covered by the maintenance tool are added.

In the thus constructed elevator maintenance tool safety system, the elevator monitoring center always keeps track of the location of the maintenance tool, and when this location is out of the range of the maintenance tool in question, an alarm is issued. Is issued, the manager of the elevator monitoring center can promptly know that the maintenance tool has been taken away to a third party.

Another aspect of the present invention further includes location search means for searching the location of the maintenance tool for which the transmission request of the maintenance inspection program has been made, to the elevator monitoring center of the elevator maintenance tool safety system of the above-mentioned invention, A location check means for transmitting the maintenance / inspection program to the maintenance tool which is the source of the transmission request is added only when the detected location coincides with the location of the elevator for maintenance / inspection included in the transmission request for the maintenance / inspection program.

In the elevator maintenance tool safety system configured as described above, if the location of the elevator subject to maintenance and inspection transmitted from the maintenance tool does not match the actual location of the detected maintenance tool, maintenance and inspection is performed. Since the program is not transmitted, safety is ensured when a third party designates a different elevator for maintenance inspection.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a schematic configuration of an elevator maintenance tool safety system according to an embodiment.

A PHS 2 is incorporated in the maintenance tool 1 composed of a portable information terminal.
By indirectly operating S2, various kinds of information can be exchanged with the elevator monitoring center 6 via the base station 3, the PHS network 4, and the public telephone network 5.

Further, the maintenance tool 1 has an elevator 7 to be a maintenance inspection target in a state where the maintenance inspection program is downloaded from the elevator monitoring center 6.
It is connected to the control unit 8 incorporated in the device via a signal line 9 such as a signal cable or an optical signal path. Elevator 7
Is a drive machine 10 including a car 10 on which a user is placed to move between floors, and a hoist that moves the car 10 up and down.
And a control unit 8 that controls the movement of the car 10 via the drive machine 10.

In FIG. 1, one maintenance tool 1, 1
Although only the elevators 7 are described, actually, a plurality of maintenance tools 1 and a plurality of elevators 7 are provided.

FIG. 2 is a block diagram showing a schematic configuration of an elevator monitoring center 6 which is a computer installed in an elevator maintenance management company. In the elevator monitoring center 6, a modem 12 and a transmitting / receiving unit 13 for exchanging information with the maintenance tool 1 via the public telephone network 5, an elevator management table 14, a maintenance tool management table 15, a program memory 16 and the like. Are formed. A maintenance inspection program 17, a time management program 18, and an erase management program 19 are stored in the program memory 16.

The maintenance inspection program 17 is the maintenance tool 1
It is a program for automatically performing maintenance and inspection processing on the elevator 7 in a state in which it has been downloaded to. The time management program 18 is the maintenance inspection program 1
7 and this time management program 18 have been downloaded to the maintenance tool 1 for a certain period of time, all programs 17, 18, 1 downloaded from the elevator monitoring center 6 including the maintenance inspection program 17
9 is a program for automatically erasing 9.

Further, the erasure management program 19 is a maintenance / inspection program 17 and the maintenance / inspection program 17 when the maintenance / inspection program 17 has finished downloading the maintenance / inspection program 19 to the maintenance tool 1. All programs 17 downloaded from the elevator monitoring center 6 including
This is a program for automatically deleting 18 and 19.

In the elevator management table 14, FIG.
As shown in (a), a machine number, a location, a customer name, etc. are set for the management numbers assigned to all the elevators 7 managed by the elevator monitoring center 6.

Further, in the maintenance tool management table 15, as shown in FIG. 3B, the equipment (tool) numbers assigned to all the maintenance tools 1 managed by the elevator monitoring center 6 are assigned. Then, a PHS number (telephone number), a personal identification number (password), and a range in charge including the location of each elevator 7 assigned to the maintenance tool 1 are set.

Further, in the elevator monitoring center 6, as shown in FIG. 2, a position searching unit 20 and a position confirming unit 2 are provided.
1, password check unit 22, program transmission unit 2
3, maintenance / inspection data receiving section 24, maintenance / inspection data file 25, alarm output section 26, etc. are formed on the application program.

The position searching unit 20 sends a request for detecting the position of each maintenance tool 1 in which the PHS 2 is incorporated to the management center of the PHS network 4, and receives the location (current position) of each maintenance tool 1. And sends it to the position confirmation unit 21.
The position confirmation unit 21 compares the location (current position) of each maintenance tool 1 received from the position search unit 20 with the range in charge of each maintenance tool 1 stored in the maintenance tool management table 15, and refers to each of them. When the location (current position) of the maintenance tool 1 is out of the range in which the maintenance tool 1 is in charge, the location (current position) of the old maintenance tool 1 and the old maintenance tool 1 are output via the alarm output unit 26. An alarm is output when the current position is out of the assigned range.

The program transmission unit 23 collectively transmits the maintenance / inspection program 17, the time management program 18, and the erase management program 19 stored in the program memory 16 to the maintenance tool 1 as the program transmission request source.

FIG. 4 is a block diagram showing a schematic configuration of each maintenance tool 1. In the maintenance tool 1 composed of a mobile terminal, a PHS2 for forming a communication line to the elevator monitoring center 6 via the PHS network 4, and this PHS2
A transmission / reception unit 27 for transmitting / receiving various kinds of information to / from the elevator monitoring center 6 having a communication line formed therein, a CUI 28 including a display unit 28a, a keyboard 28b and an input button 28c, a program memory 29, a program operation unit 30, an elevator. The transmitter / receiver 31 for exchanging various kinds of information with the control unit 8 is incorporated.

In the program execution unit 30, maintenance and inspection is performed on the elevator 7 based on the maintenance and inspection program 17, the time management program 18, and the deletion management program 19 downloaded from the elevator monitoring center 6 to the program memory 29. Maintenance / inspection processing unit 32, time control processing unit 33 that executes time control, each program 1
Program erasing unit 34 for erasing 7, 18, 19
Is provided.

The elevator monitoring center 66 in the elevator maintenance tool safety system having such a configuration carries out a management process for each maintenance tool 1 according to the flowchart of FIG.

From one maintenance tool 1, a transmission request for a maintenance inspection program consisting of a control number, a machine number, a personal identification number, a device number of the maintenance tool 1, and a personal identification number of the elevator 7 to be inspected is sent via the transmitting / receiving section 20. When you enter (S
1) The transmission request of the input program is once written in the reception buffer (S2). Password check part 2
2 starts, and it is checked whether or not the personal identification number included in the transmission request matches the personal identification number of the device number included in the transmission request of the maintenance tool management table 15 (S2).

If they match (S3), the location search unit 20 sends a search request for the location (current location) of the maintenance tool 1 concerned to the PHS network 4 (S4), and the location (current location) of the maintenance tool 1 concerned. Is grasped (S5). The location of the elevator 7 having the management number and the machine number included in the transmission request is read from the elevator management table 14 (S6). It is determined whether the location of the elevator 7 designated by the location (current location) of the maintenance tool 1 is the same.

If they match (S7), the program transmission unit 23 is activated, and the maintenance inspection program 17, the time management program 18, stored in the program memory 16,
The erase management program 19 is collectively transmitted to the maintenance tool 1 of the program transmission request source.

If the passwords (passwords) do not match in S1 or the locations do not match in S7, the maintenance tool 1 is operated by a third person instead of an authorized worker. A judgment is made and a message indicating that the maintenance / inspection program 17 cannot be transmitted is returned to the maintenance tool 1 as the transmission request source.

After transmitting each of the programs 17, 18 and 19 to the maintenance tool 1 which is the program transmission request source,
When the maintenance / inspection data receiving unit 24 receives the data of the maintenance / inspection result from the corresponding maintenance tool 1, the maintenance / inspection data file 25 stores the received data of the maintenance / inspection result.

Further, each maintenance tool 1 carries out maintenance inspection processing for the elevator 7 in accordance with the flowchart of FIG. 6 (a).

The operator operates the keyboard 28b (Q1) to activate the PHS2 to establish a communication line with the elevator monitoring center 6 (Q2). When the operator uses the GUI 28 including the keyboard 28b to input the management number, the machine number, and the personal identification number of the elevator 7 to be inspected and inspected (Q3), the operation input management number, machine number, and personal identification number are entered. A request for transmitting the maintenance inspection program including the device number for identifying the maintenance tool 1 is transmitted to the elevator monitoring center 6 (Q4).

When the maintenance and inspection program 17, the time management program 18, and the erasure management program 19 are collectively transmitted from the elevator monitoring center 6, the received programs 17, 18, and 19 are temporarily stored in the program memory 29. Write to (Q5). Then, the program execution unit 30 simultaneously activates the programs 17, 18, and 19 written in the program memory 29 (Q6). When the processing of each of the programs 17, 18, and 19 is completed (Q7), this flow chart is ended.

When information indicating that the program cannot be transmitted is received from the elevator monitoring center 6 in Q5 instead of the program, an error is displayed on the display unit 28a (Q
8).

The maintenance / inspection processing section 32, the time control processing section 33, and the program erasing section 34 of the program executing section 30.
Using the above programs 17, 18 and 19,
The flow chart of FIG. 6B is executed.

When the program is started, first, a timer for measuring the elapsed time T is started (T = 0) (R
1) Wait for the worker to perform a connecting operation to the control unit 8 of the elevator 7 (R2). When the connection operation is performed within a predetermined fixed time Tmax (R3), a communication line is established for the control unit 8 of the elevator 7 (R4). Then, the maintenance / inspection process for the elevator 7 is performed via the control unit 8 (R5), the maintenance / inspection result data is fetched and transmitted to the elevator monitoring center 6 (R6).

When the above maintenance / inspection processing for the elevator 7 is completed, the maintenance / inspection program 17, the time management program 18, and the deletion management program 19, which are temporarily stored in the program memory 29 and downloaded from the elevator monitoring center 6, are erased ( R7).

If the connection operation is not performed within the predetermined constant time Tmax (R3), the program immediately moves to R7 and erases the programs 17, 18 and 19 stored in the program memory 29.

In the elevator maintenance tool safety system configured as described above, a worker who intends to perform maintenance and inspection on the elevator 7 operates the maintenance tool 1 immediately before the start of the work to operate the elevator monitoring center 6
To maintenance inspection program 17, time management program 1
8. The erasure management program 19 is downloaded. And this downloaded maintenance inspection program 17
Maintenance tool for the elevator 7 using the maintenance tool 1
To implement.

When the maintenance and inspection of the elevator 7 is completed, the programs 17, 18, and 19 including the maintenance and inspection program 17 are automatically erased. Further, if the worker does not perform maintenance work on the elevator 7 within a predetermined fixed time Tmax, each program 17, 18, 19 downloaded from the elevator monitoring center 6 is automatically deleted. .

Therefore, the maintenance / inspection program 17 is not stored in the maintenance tool 1 during a normal period, so even if the maintenance tool 1 is passed to a third party, the maintenance tool 1 is used. Maintenance of elevator 7 cannot be carried out easily. Therefore, the safety of the elevator 7 and the maintenance tool 1 can be ensured.

At the elevator monitoring center 6 side, a password check is carried out for the personal identification number entered by the worker into the maintenance tool 1, so the safety of maintenance and inspection of the elevator 7 can be further improved.

Further, the elevator monitoring center 6 always knows the location (current location) of each maintenance tool 1,
If this location (current location) is out of the assigned range of the maintenance tool 1 in advance, an alarm is issued, so the administrator of the elevator monitoring center sends the maintenance tool 1 to a third party, You can quickly sense that you have been taken away.

The location of the maintenance tool 1 (current location)
And the location of the elevator notified from the maintenance tool 1 is confirmed, the safety is ensured when a third person designates a different elevator as a maintenance inspection target.

[0061]

As described above, in the elevator maintenance tool safety system of the present invention, the maintenance inspection program is made to exist in the maintenance tool only when it is really necessary. Therefore, even if a malicious third party obtains the maintenance tool, the third party cannot operate the maintenance tool to tamper with the setting data of the elevator, and the safety of the maintenance tool and the elevator cannot be improved. It can be ensured.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of an elevator maintenance tool safety system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of an elevator monitoring center incorporated in the elevator maintenance tool safety system of the embodiment.

FIG. 3 is a diagram showing stored contents of an elevator management table and a maintenance tool management table formed in the elevator monitoring center.

FIG. 4 is a block diagram showing a schematic configuration of a maintenance tool incorporated in the elevator maintenance tool safety system of the embodiment.

FIG. 5 is a flow chart showing the operation of an elevator monitoring center incorporated in the elevator maintenance tool safety system.

FIG. 6 is a flowchart showing the operation of the maintenance tool incorporated in the elevator maintenance tool safety system.

[Explanation of symbols]

1 ... Maintenance tool 2 ... PHS 4 ... PHS network 6 ... Elevator monitoring center 7 ... elevator 8 ... Control unit 14 ... Elevator management table 15 ... Maintenance tool management table 17 ... Maintenance inspection program 18 ... Time management program 19 ... Erase management program 22 ... Password check section 23 ... Program transmission section 28 ... GUI 29 ... Program memory 30 ... Program execution unit

Claims (6)

[Claims] 1. A control unit incorporated in an elevator and selectively connected to a control unit for controlling the operation of the elevator through a communication means, and in the connected state, a maintenance inspection for the operating state of the elevator is executed to perform maintenance. In an elevator maintenance tool safety system that secures safety in a portable maintenance tool that transmits inspection results to an elevator monitoring center via a communication line, the elevator monitoring center sends a maintenance inspection program transmission request from the maintenance tool. Accordingly, the maintenance tool has a program transmission unit for transmitting the maintenance inspection program to the maintenance tool of the transmission request source, and the maintenance tool transmits a transmission request for the maintenance inspection program to the elevator monitoring center based on an operation instruction. Requesting means and maintenance inspection program received from the elevator monitoring center Elevator maintenance tool characterized by having a maintenance inspection executing means for executing maintenance inspection for the elevator based on a program, and a program erasing means for erasing the maintenance inspection program when the maintenance inspection for the elevator is completed. Safety system. 2. The maintenance tool has a program erasing means for erasing the received maintenance / inspection program when a predetermined time has elapsed from the reception time of the maintenance / inspection program from the elevator monitoring center. The elevator maintenance tool safety system according to item 1. 3. The elevator maintenance tool safety system according to claim 2, wherein each of the program erasing means is executed according to a program transmitted from the elevator monitoring center at the same time as the maintenance inspection program. 4. The elevator monitoring center sets the maintenance inspection program to the maintenance tool only when the password transmitted from the maintenance tool sending the maintenance inspection program matches the password preset in the maintenance tool. 4. The elevator maintenance tool safety system according to claim 1, further comprising a password check means for transmitting the password to the elevator maintenance tool. 5. The elevator monitoring center, a range storage means for storing a range of responsibility indicating the range of the elevator where the maintenance tool performs maintenance and inspection, location search means for searching the location of the maintenance tool, The elevator maintenance tool safety system according to any one of claims 1 to 4, further comprising: an alarm output unit that outputs an alarm when the detected location is out of a range in charge of the maintenance tool. 6. The elevator monitoring center, location search means for searching the location of the maintenance tool that has transmitted the maintenance inspection program transmission request, and the maintenance inspection where the detected location is included in the maintenance inspection program transmission request. The elevator maintenance tool safety system according to claim 5, further comprising: a location check means for transmitting the maintenance / inspection program to the maintenance tool of the transmission request source only when the location coincides with the location of the target elevator.