JP4942265B2 - Elevator maintenance tool safety system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator maintenance tool that performs maintenance and inspection of elevators incorporated in each building, and more particularly to an elevator maintenance tool safety system that ensures safety in the maintenance tool.
[0002]
[Prior art]
In recent years, in an elevator installed in a building such as a building or a condominium, the movement position of a “car” on which passengers are moved between floors is controlled by digital control using a computer. Therefore, it is very important to regularly check that such computer-managed elevators operate normally in order to ensure the safety of elevator users.
[0003]
In this computer-managed elevator maintenance inspection work, various test data are applied to the control unit incorporated in this elevator, and the data indicating the actual movement position of the “car” is verified, Various setting data set in the control unit are updated. Then, maintenance inspection result data such as control responses and setting data is collected.
[0004]
As such a maintenance tool for maintaining and inspecting the operation of a computer-managed elevator, it is only necessary to be able to input / output data to / from the control unit incorporated in the elevator, so that a worker can easily carry it around. A maintenance tool composed of a type information terminal is used.
[0005]
In this maintenance tool, a maintenance / inspection program (application program) for performing the above-described maintenance / inspection processing for an elevator is installed in a commercially available portable information terminal. And the input / output port of this maintenance tool and the external control terminal of the control part built in the elevator are connected by a communication cable or an optical communication device. When the worker activates the maintenance / inspection program for the maintenance tool, the maintenance / inspection process for the operation state of the elevator is automatically performed, and the data of the maintenance / inspection result is automatically collected in the maintenance tool.
[0006]
The worker sends the maintenance inspection result data collected by the maintenance tool to the elevator monitoring center via the communication network, or takes the maintenance tool back to the elevator monitoring center installation location and directly takes the elevator monitoring center. I was typing in.
[0007]
[Problems to be solved by the invention]
However, there are still the following problems that should still be solved in the maintenance tool that automatically performs the maintenance inspection for the operation of the elevator.
[0008]
That is, in the elevator maintenance tool, a third party cannot easily operate the maintenance tool by requiring a password input when starting the OS of the mobile terminal itself constituting the maintenance tool.
[0009]
However, the password system for starting up the OS of the mobile terminal itself is a rudimentary password system and can be easily broken by a malicious third party.
[0010]
For this reason, if this maintenance tool is leaked to a non-related party for some reason and the password system is decrypted, a malicious third party operates the maintenance tool and sets the setting data of the control unit incorporated in the elevator. There was a possibility of changes, etc., and there was a risk of elevator passengers being harmed.
[0011]
The present invention has been made in view of such circumstances. The purpose of the present invention is to allow a maintenance tool to exist in the maintenance tool only when necessary, so that even a third party who has malicious intent on the maintenance tool. Provide an elevator maintenance tool safety system that ensures that the safety of the maintenance tool and the elevator can be ensured without the third party being able to manipulate the maintenance tool to tamper with the elevator setting data. Objective.
[0012]
[Means for Solving the Problems]
The present invention is selectively connected via a communication means to a control unit incorporated in an elevator and controlling the operation of the elevator, and in the connected state, a maintenance inspection is performed on the operation state of the elevator, and the maintenance inspection result Is applied to an elevator maintenance tool safety system that ensures safety in a portable maintenance tool that transmits to the elevator monitoring center via a communication line.
[0013]
And in order to eliminate the said subject, in the elevator maintenance tool safety system of invention corresponding to Claim 1 , according to the transmission request | requirement of the maintenance inspection program from a maintenance tool with respect to an elevator monitoring center, a maintenance inspection program Is transmitted to the maintenance tool of the transmission request source, responsible range storage means for storing the responsible range indicating the location range of the elevator where the maintenance tool performs maintenance inspection, and the location of the maintenance tool is searched. Location search means and alarm output means for outputting an alarm when the detected location is out of the scope of the maintenance tool are added.
[0014]
Furthermore, in the elevator maintenance tool safety system of the invention corresponding to claim 1, a transmission request means for transmitting a maintenance inspection program transmission request to the elevator monitoring center based on an operation instruction to the maintenance tool, and the elevator monitoring center A maintenance / inspection execution unit for performing maintenance / inspection on the elevator based on the maintenance / inspection program received from the program and a program erasing unit for deleting the maintenance / inspection program when the maintenance / inspection on the elevator is completed are added.
[0015]
In the elevator maintenance tool safety system configured as described above, a worker who wants to perform maintenance and inspection on the elevator operates the maintenance tool and downloads a maintenance and inspection program from the elevator monitoring center immediately before starting the work. . Then, the maintenance tool is caused to perform maintenance inspection on the elevator using the downloaded maintenance inspection program. When the maintenance inspection for the elevator is completed, the maintenance inspection program is automatically deleted. As a result, since this maintenance tool does not have a maintenance inspection program stored in a normal period, even if this maintenance tool is transferred to a third party, the maintenance inspection of the elevator can be easily performed using this maintenance tool. Cannot be implemented. Therefore, the safety of the maintenance tool can be ensured.
In addition, the elevator monitoring center keeps track of the location of the maintenance tool, and if this location is outside the scope of responsibility for the maintenance tool, an alarm is issued. You can quickly know that the tool has been taken away by a third party.
[0017]
Further, the invention corresponding to claim 3 is provided for the maintenance tool of the elevator maintenance tool safety system according to the present invention described above, when a certain time has elapsed from the reception time of the maintenance inspection program from the elevator monitoring center. The program erasing means for erasing the maintenance inspection program is added.
[0018]
In the elevator maintenance tool safety system configured as described above, when an operator downloads a maintenance inspection program from the elevator monitoring center and does not perform maintenance inspection work on the elevator for a certain period of time, the maintenance inspection program Is automatically deleted, so that the safety for the maintenance tool can be further enhanced.
[0019]
According to a fourth aspect of the present invention, in the elevator maintenance tool safety system according to the above-described invention, each program erasing means is executed in accordance with a program transmitted from the elevator monitoring center simultaneously with the maintenance inspection program.
[0020]
In the elevator maintenance tool safety system configured in this way, automatic deletion of the downloaded maintenance inspection program is also performed by the downloaded program, so this automatic deletion cannot be canceled by operating the maintenance tool itself. The safety of the maintenance inspection for the elevator can be further improved.
[0025]
Further, in the elevator maintenance tool safety system according to the second aspect of the present invention, in the elevator maintenance tool safety system , the elevator monitoring center sends the maintenance inspection program to the maintenance of the transmission request source in response to the transmission request of the maintenance inspection program from the maintenance tool. A program transmission means for transmitting to the tool, a location search means for searching for the location of the maintenance tool that has issued the maintenance inspection program transmission request, and the detected location of the maintenance inspection target included in the transmission request for the maintenance inspection program. A location check means for transmitting the maintenance / inspection program to the transmission request source maintenance tool only when the location matches the location of the elevator ;
The maintenance tool executes a maintenance inspection for the elevator based on a transmission request means for transmitting a transmission request for a maintenance inspection program to the elevator monitoring center based on an operation instruction, and a maintenance inspection program received from the elevator monitoring center. The system includes a maintenance / inspection execution unit and a program erasing unit that erases the maintenance / inspection program when the maintenance / inspection for the elevator is completed.
[0026]
In the elevator maintenance tool safety system configured as described above, the maintenance inspection program transmits if the location of the elevator subject to maintenance inspection transmitted from the maintenance tool does not match the actual location of the detected maintenance tool. Therefore, safety is ensured when a third party designates a different elevator as a maintenance inspection target.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Drawing 1 is a mimetic diagram showing a schematic structure of an elevator maintenance tool safety system concerning an embodiment.
[0028]
A maintenance tool 1 composed of a portable information terminal incorporates a PHS 2. The maintenance tool 1 indirectly operates the PHS 2 to monitor an elevator via the base station 3, the PHS network 4, and the public telephone network 5. Various information exchanges with the center 6 are possible.
[0029]
Further, the maintenance tool 1 transmits a signal cable or a signal such as an optical signal path to the control unit 8 incorporated in the elevator 7 to be a maintenance inspection object in a state where the maintenance inspection program is downloaded from the elevator monitoring center 6. Connected via line 9. The elevator 7 has a car 10 on which a user is moved to move between the floors, a drive machine 10 including a hoisting machine that moves the car 10 up and down, and a control that controls the movement of the car 10 via the drive machine 10. Part 8.
[0030]
In FIG. 1, only one maintenance tool 1 and one elevator 7 are shown, but actually, a plurality of maintenance tools 1 and a plurality of elevators 7 are provided.
[0031]
FIG. 2 is a block diagram showing a schematic configuration of the elevator monitoring center 6 composed of computers installed in an elevator maintenance management company.
In the elevator monitoring center 6, an elevator management table 14, a maintenance tool management table 15, a program memory 16, in addition to a modem 12 and a transmission / reception unit 13 for exchanging information with the maintenance tool 1 via the public telephone network 5. Is formed. In the program memory 16, a maintenance inspection program 17, a time management program 18, and an erasure management program 19 are stored.
[0032]
The maintenance / inspection program 17 is a program for automatically performing maintenance / inspection processing on the elevator 7 in a state downloaded to the maintenance tool 1. The time management program 18 is the maintenance inspection program 17 and all programs downloaded from the elevator monitoring center 6 including the maintenance inspection program 17 when a certain period has elapsed from the time when the time management program 18 was downloaded to the maintenance tool 1. This program automatically deletes 17, 18, and 19.
[0033]
The erasure management program 19 is an elevator including the maintenance / inspection program 17 when the maintenance / inspection program 17 and the erasure management program 19 are downloaded to the maintenance tool 1 and when the maintenance / inspection processing in the maintenance / inspection program 17 is completed. This is a program for automatically erasing all programs 17, 18, and 19 downloaded from the monitoring center 6.
[0034]
In the elevator management table 14, as shown in FIG. 3 (a), the machine number, location, customer name, etc., for the management numbers assigned to all elevators 7 managed by this elevator monitoring center 6. Is set.
[0035]
In the maintenance tool management table 15, as shown in FIG. 3B, PHS is assigned to the device (tool) numbers assigned to all the maintenance tools 1 managed by the elevator monitoring center 6. A charge range that includes the number (telephone number), password (password), and the location of each elevator 7 assigned to the maintenance tool 1 is set.
[0036]
Further, in the elevator monitoring center 6, as shown in FIG. 2, a position search unit 20, a position confirmation unit 21, a password check unit 22, a program transmission unit 23, a maintenance inspection data reception unit 24, a maintenance inspection data file 25, An alarm output unit 26 and the like are formed on the application program.
[0037]
The position search 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. The data is sent to the position confirmation unit 21. The position confirmation unit 21 compares and refers to the location (current position) of each maintenance tool 1 received from the position search unit 20 and the assigned range of each maintenance tool 1 stored in the maintenance tool management table 15. When the location (current position) of the maintenance tool 1 is out of the scope of responsibility of the corresponding maintenance tool 1, the location (current position) of the old maintenance tool 1 and the old maintenance tool 1 Outputs a warning that the current position is out of the assigned range.
[0038]
The program transmission unit 23 transmits the maintenance / inspection program 17, the time management program 18, and the erasure management program 19 stored in the program memory 16 to the maintenance tool 1 as a program transmission request source.
[0039]
FIG. 4 is a block diagram showing a schematic configuration of each maintenance tool 1.
In the maintenance tool 1 composed of a portable terminal, the PHS 2 for forming a communication line to the elevator monitoring center 6 via the PHS network 4 and the elevator monitoring center 6 having a communication line formed by the PHS 2 are connected. Various information exchanges are performed among the transmission / reception unit 27 for transmitting / receiving various information, the display unit 28a, the keyboard 28b, and the CUI 28 including the input buttons 28c, the program memory 29, the program operation unit 30, and the control unit 8 of the elevator 7. A transmitting / receiving unit 31 is incorporated.
[0040]
In the program execution unit 30, the maintenance inspection for executing the maintenance inspection for the elevator 7 based on the maintenance inspection program 17, the time management program 18, and the erasure management program 19 downloaded from the elevator monitoring center 6 to the program memory 29. A processing unit 32, a time control processing unit 33 for executing time control, and a program erasing unit 34 for erasing the programs 17, 18, and 19 are provided.
[0041]
The elevator monitoring center 66 in the elevator maintenance tool safety system configured as described above performs management processing for each maintenance tool 1 according to the flowchart of FIG.
[0042]
When a transmission request for a maintenance inspection program consisting of a management number of the elevator 7 subject to maintenance inspection, a machine number, a password, a device number of the maintenance tool 1, and a password is input from one maintenance tool 1 via the transmission / reception unit 20 ( S1), the transmission request of the input program is temporarily written in the reception buffer (S2). The password check unit 22 is activated to check whether the password included in the transmission request matches the password of the device number included in the transmission request of the maintenance tool management table 15 (S2).
[0043]
If they match (S3), a search request for the location (current location) of the corresponding maintenance tool 1 is transmitted from the location search unit 20 to the PHS network 4 (S4), and the location (current location) of the maintenance tool 1 is grasped. (S5). From the elevator management table 14, the location of the elevator 7 having the management number and the machine number included in the transmission request is read (S6). It is determined whether or not the location of the designated elevator 7 matches the location (current location) of the maintenance tool 1.
[0044]
If they match (S7), the program transmission unit 23 is activated, and the maintenance inspection program 17, the time management program 18, and the erasure management program 19 stored in the program memory 16 are collectively stored in the maintenance tool of the program transmission request source. Send to 1.
[0045]
If the passwords (passwords) do not match at S1 or the locations do not match at S7, it is determined that the maintenance tool 1 is operated by a third person, not a regular worker. Then, the transmission of the maintenance inspection program 17 is returned to the maintenance tool 1 as the transmission request source.
[0046]
Then, after each program 17, 18, 19 is transmitted to the maintenance tool 1 of the program transmission request source, when the maintenance inspection data receiving unit 24 receives the maintenance inspection result data from the maintenance tool 1, the received maintenance inspection is received. The result data is stored in the maintenance inspection data file 25.
[0047]
Moreover, each maintenance tool 1 performs the maintenance inspection process with respect to the elevator 7 according to the flowchart of Fig.6 (a).
[0048]
An operator operates the keyboard 28b (Q1), activates PHS2, and establishes a communication line with the elevator monitoring center 6 (Q2). When an operator inputs the management number, unit number, and password of the elevator 7 to be inspected and maintenance using the GUI 28 including the keyboard 28b (Q3), the management number, the unit number, and the code number input by the operation are entered. Then, a transmission request for the maintenance inspection program including the device number for specifying the maintenance tool 1 is transmitted to the elevator monitoring center 6 (Q4).
[0049]
When the maintenance inspection program 17, the time management program 18, and the erasure management program 19 are transmitted in a batch from the elevator monitoring center 6, the received programs 17, 18, 19 are temporarily written in the program memory 29. (Q5). And the program execution part 30 starts each program 17, 18, 19 written in the program memory 29 all at once (Q6). Then, when the processing of each program 17, 18, and 19 is completed (Q7), this flowchart is ended.
[0050]
If information indicating that the program cannot be transmitted is received from the elevator monitoring center 6 instead of the program at Q5, an error is displayed on the display unit 28a (Q8).
[0051]
Further, the maintenance / inspection processing unit 32, the time control processing unit 33, and the program erasing unit 34 of the program execution unit 30 execute the flowchart of FIG. 6B using the programs 17, 18, and 19 described above.
[0052]
When the program is started, first, a timer for measuring the elapsed time T is started (T = 0) (R1), and the operator waits for the connection operation to the control unit 8 of the elevator 7 to be performed (R2). . When the connection operation is performed within a predetermined time Tmax (R3), a communication line is established for the control unit 8 of the elevator 7 (R4). Then, a maintenance / inspection process for the elevator 7 is performed via the control unit 8 (R5), and the maintenance / inspection result data is captured and transmitted to the elevator monitoring center 6 (R6).
[0053]
When the maintenance inspection process for the elevator 7 is completed, the maintenance inspection program 17, the time management program 18, and the deletion management program 19 downloaded from the elevator monitoring center 6 temporarily stored in the program memory 29 are deleted (R7).
[0054]
If the connection operation is not performed within a predetermined time Tmax (R3), the program immediately moves to R7, and the programs 17, 18, and 19 stored in the program memory 29 are deleted.
[0055]
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 and starts the maintenance and inspection program from the elevator monitoring center 6. 17. The time management program 18 and the erase management program 19 are downloaded. Then, the maintenance tool 1 is caused to perform maintenance and inspection for the elevator 7 by using the downloaded maintenance and inspection program 17.
[0056]
When the maintenance inspection for the elevator 7 is completed, the programs 17, 18 and 19 including the maintenance inspection program 17 are automatically deleted. Furthermore, if the maintenance work for the elevator 7 is not performed by the worker within a predetermined time Tmax, the programs 17, 18, 19 downloaded from the elevator monitoring center 6 are automatically deleted. .
[0057]
Accordingly, since the maintenance / inspection program 17 is not stored in the maintenance tool 1 in a normal period, even if the maintenance tool 1 is transferred to a third party, the maintenance tool 1 can be easily used by the elevator. 7 maintenance inspection cannot be carried out. Therefore, the safety of the elevator 7 and the maintenance tool 1 can be ensured.
[0058]
Since the password is checked for the password entered by the worker to the maintenance tool 1 on the elevator monitoring center 6 side, the safety of the maintenance inspection for the elevator 7 can be further improved.
[0059]
Further, the elevator monitoring center 6 always keeps track of the location (current location) of each maintenance tool 1, and if this location (current location) is outside the assigned range assigned to the maintenance tool 1 in advance, an alarm is issued. As a result, the manager of the elevator monitoring center can quickly detect that the maintenance tool 1 has been taken away by a third party.
[0060]
In addition, since the location of the maintenance tool 1 (current location) and the location of the elevator notified from the maintenance tool 1 are confirmed to match, safety when a third party designates a different elevator as a maintenance inspection target. Is secured.
[0061]
【Effect of the invention】
As described above, in the elevator maintenance tool safety system of the present invention, the maintenance inspection program is present 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 falsify the elevator setting data, and the safety of the maintenance tool and the elevator can be reduced. It can be secured reliably.
[Brief description of the 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 according to the embodiment. FIG. 3 is a diagram showing storage contents of an elevator management table and a maintenance tool management table formed in the elevator monitoring center. FIG. 4 is a schematic configuration of a maintenance tool incorporated in the elevator maintenance tool safety system of the embodiment. Fig. 5 is a flowchart showing the operation of the 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. ]
1 ... Maintenance tool 2 ... PHS
DESCRIPTION OF SYMBOLS 4 ... PHS network 6 ... Elevator monitoring center 7 ... Elevator 8 ... Control part 14 ... Elevator management table 15 ... Maintenance tool management table 17 ... Maintenance inspection program 18 ... Time management program 19 ... Erase management program 22 ... Password check part 23 ... Program Transmitter 28 ... GUI
29 ... Program memory 30 ... Program execution unit

Claims (4)

A control unit incorporated in the elevator and selectively connected to a control unit that controls the operation of the elevator is selectively connected via communication means, and in the connected state, the maintenance inspection for the operation state of the elevator is performed, and the result of the maintenance inspection is transmitted through a communication line. In the elevator maintenance tool safety system to ensure the safety of portable maintenance tools that are sent to the elevator monitoring center via
The elevator monitoring center responds to a transmission request for a maintenance inspection program from the maintenance tool, program transmission means for transmitting the maintenance inspection program to the maintenance request source maintenance tool, and the maintenance tool performs the maintenance inspection. Responsible range storage means for storing a responsible range indicating the location range of the elevator, location search means for retrieving the location of the maintenance tool, and an alarm that outputs a warning when the detected location is out of the responsible range of the maintenance tool Output means ,
The maintenance tool executes a maintenance inspection for the elevator based on a transmission request means for transmitting a transmission request for a maintenance inspection program to the elevator monitoring center based on an operation instruction, and a maintenance inspection program received from the elevator monitoring center. An elevator maintenance tool safety system comprising maintenance inspection execution means and program erasure means for erasing the maintenance inspection program when the maintenance inspection for the elevator is completed. A control unit incorporated in the elevator and selectively connected to a control unit that controls the operation of the elevator is selectively connected via communication means, and in the connected state, the maintenance inspection for the operation state of the elevator is performed, and the result of the maintenance inspection is transmitted through a communication line. In the elevator maintenance tool safety system to ensure the safety of portable maintenance tools that are sent to the elevator monitoring center via
In response to a maintenance inspection program transmission request from the maintenance tool, the elevator monitoring center executed a program transmission means for transmitting the maintenance inspection program to the transmission request source maintenance tool, and a maintenance inspection program transmission request. Location search means for searching for the location of the maintenance tool, and when the detected location matches the location of the elevator subject to maintenance inspection included in the transmission request of the maintenance inspection program, the maintenance inspection program is transmitted to the transmission request source. A location check means to send to the maintenance tool ,
The maintenance tool executes a maintenance inspection for the elevator based on a transmission request means for transmitting a transmission request for a maintenance inspection program to the elevator monitoring center based on an operation instruction, and a maintenance inspection program received from the elevator monitoring center. An elevator maintenance tool safety system comprising maintenance inspection execution means and program erasure means for erasing the maintenance inspection program when the maintenance inspection for the elevator is completed . Claim the maintenance tool, when a predetermined time has elapsed from the reception time of the maintenance program from the elevator monitoring center, which is characterized in <br/> have a program erase means for erasing the maintenance program the received The elevator maintenance tool safety system according to claim 1 or 2. Each of the 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.
The elevator maintenance tool safety system according to claim 3 .

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