CN110054042B - Program erasing apparatus and program erasing method - Google Patents
Program erasing apparatus and program erasing method Download PDFInfo
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- CN110054042B CN110054042B CN201810699291.6A CN201810699291A CN110054042B CN 110054042 B CN110054042 B CN 110054042B CN 201810699291 A CN201810699291 A CN 201810699291A CN 110054042 B CN110054042 B CN 110054042B
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- remote monitoring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides a program erasing apparatus and a program erasing method, which can effectively prevent the unfavorable condition of technical information leakage caused by analysis of a program for remote monitoring even if the remote monitoring apparatus can not be recovered after a maintenance contract is finished. The program erasing apparatus of the embodiment has a timer and a control section. The timer sets a set time based on an interval at which maintenance work of the elevator is performed, and outputs a control signal when the measured time reaches the set time. The control unit erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs the control signal.
Description
Technical Field
Embodiments of the present invention relate to a program erasing apparatus and a program erasing method.
Background
Maintenance of the elevator is carried out on the basis of a maintenance contract. During the maintenance contract, remote monitoring of the elevator and maintenance work performed regularly on site by a maintenance worker are generally performed. After signing the maintenance contract, a remote monitoring apparatus is installed at the installation site of the elevator to enable remote monitoring of the elevator, and the remote monitoring apparatus is connected to a remote monitoring server installed in a monitoring center via a communication line. The remote monitoring apparatus collects information for diagnosis from the elevator control panel and transmits the information to the remote monitoring server according to a program for remote monitoring stored in advance, for example, performs self-diagnosis of the elevator using the collected information and transmits the diagnosis result to the remote monitoring server.
When the maintenance contract is ended without being updated, the remote monitoring apparatus is no longer necessary because the remote monitoring of the elevator is not continued. However, after the maintenance contract is completed, there are many cases where a maintenance worker or the like cannot enter the installation site of the elevator, and in this case, the remote monitoring apparatus cannot be collected and placed. When the remote monitoring device is installed at the installation site of the elevator, the remote monitoring program stored in the remote monitoring device may be analyzed by a third party, and confidential technical information may be leaked.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2016-216151
Disclosure of Invention
Problems to be solved by the invention
The present invention is directed to provide a program erasing apparatus and a program erasing method, which can effectively prevent technical information leakage and other disadvantages caused by analysis of a program for remote monitoring even when a remote monitoring apparatus cannot be recovered after a maintenance contract is completed.
Means for solving the problems
The program erasing apparatus of the embodiment has a timer and a control section. The timer holds a set time set based on an interval at which maintenance work of the elevator is performed, and outputs a control signal when the counted time reaches the set time. The control unit erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs the control signal.
Drawings
Fig. 1 is a block diagram showing an example of the configuration of an elevator remote monitoring system having a program erasing apparatus according to embodiment 1.
FIG. 2 is a flowchart showing an example of the operation of the program erasing apparatus according to embodiment 1.
Fig. 3 is a block diagram showing an example of the configuration of the elevator remote monitoring system having the program erasing apparatus according to embodiment 2.
FIG. 4 is a flowchart showing an example of the operation of the program erasing apparatus according to embodiment 2.
Detailed Description
Hereinafter, a program erasing apparatus and a program erasing method according to an embodiment will be described in detail with reference to the drawings. In the present embodiment, by automatically erasing the remote monitoring program stored in the remote monitoring device installed at the installation site of the elevator, even when the remote monitoring device cannot be recovered, it is possible to effectively prevent the inconvenience such as the technical information leakage caused by the analysis of the remote monitoring program.
< embodiment 1 >
Fig. 1 is a block diagram showing an example of the configuration of an elevator remote monitoring system having a program erasing apparatus 10A according to embodiment 1. As shown in fig. 1, the elevator remote monitoring system has a program erasing apparatus 10A, a remote monitoring apparatus 20, an elevator control board 30, and a remote monitoring server 40. The program erasing device 10A, the remote monitoring device 20 and the elevator control panel 30 are installed at the installation site of the elevator. The remote monitoring server 40 is provided at a monitoring center. The remote monitoring device 20 installed at the elevator installation site and the remote monitoring server 40 installed at the monitoring center are connected via a communication line 50 so as to be able to communicate with each other.
The remote monitoring device 20 stores a program 21 for remote monitoring for performing processing necessary for remote monitoring of the elevator. The remote monitoring apparatus 20 is installed at an elevator installation site in response to an event that a maintenance contract including remote monitoring of the elevator is signed, and executes various processes necessary for remote monitoring of the elevator in accordance with a program 21 for remote monitoring. For example, the remote monitoring apparatus 20 collects information for diagnosis from the elevator control board 30 and transmits it to the remote monitoring server 40, or performs self-diagnosis of the elevator using the information collected from the elevator control board 30 and transmits the diagnosis result to the remote monitoring server 40. The remote monitoring apparatus 20 can execute various processes related to remote monitoring of the elevator based on the stored program 21 for remote monitoring. For example, the following configuration may be adopted: the remote monitoring device 20 analyzes the information collected from the elevator control panel 30 to detect a sign of a failure, and transmits information corresponding to the degree of the failure to the remote monitoring server 40.
The elevator control panel 30 is a control device that controls various operations of the elevator. The elevator control panel 30 has a function of performing general elevator operation control, and a function of transmitting various information indicating the operation state of the elevator to the remote monitoring device 20 in response to a request from the remote monitoring device 20. For example, the elevator control panel 30 holds various information indicating the operation state of the elevator, and transmits the held information to the remote monitoring device 20 in accordance with a request from the remote monitoring device 20. The elevator control panel 30 may operate the elevator in the diagnosis mode in response to a request from the remote monitoring device 20, and transmit various information indicating the operation state of the elevator at that time to the remote monitoring device 20.
The remote monitoring server 40 performs remote monitoring of the elevator by cooperation with the remote monitoring apparatus 20. For example, the remote monitoring server 40 performs diagnosis of the elevator based on information received from the remote monitoring device 20, and issues an abnormal alarm if a failure is detected, or determines whether a failure is present based on a diagnosis result received from the remote monitoring device 20, and issues an abnormal alarm if a failure is detected. In addition, the remote monitoring server 40 can provide various remote monitoring services through cooperation with the remote monitoring apparatus 20. Further, in order for the remote monitoring server 40 and the remote monitoring apparatus 20 to cooperate to perform remote monitoring of the elevator, it is necessary to establish communication between the remote monitoring apparatus 20 and the remote monitoring server 40 via the communication line 50.
The program erasing apparatus 10A has a function of automatically erasing the program 21 for remote monitoring stored in the remote monitoring apparatus 20 installed at the elevator installation site after the maintenance contract of the elevator is completed. As shown in fig. 1, the program erasing apparatus 10A includes a timer 11, a control section 12, and a reset switch 13.
The timer 11 has a register 14 for holding a set time Ts, a counter 15 for counting time based on a clock generated inside the program erasing apparatus 10A, and a comparator 16 for comparing a time Tc counted by the counter 15 with the set time Ts held by the register 14, and outputs a control signal when the time Tc counted by the counter 15 reaches the set time Ts. Here, the set time Ts held in the register 14 is set based on the interval (cycle, pause) Ti at which the maintenance worker performs the maintenance work in the elevator installation site. The interval Ti for performing the maintenance work is set based on, for example, a maintenance contract, and a time (Ti + α) obtained by adding a predetermined margin α to the interval Ti for performing the maintenance work is set as a set time Ts in the register 14. For example, if the interval Ti at which the maintenance work is performed is 30 days (720 hours), 35 days (840 hours) obtained by adding, for example, 5 days (120 hours) to the interval Ti as the margin α are set as the set time Ts in the register 14. In this case, the timer 11 outputs a control signal once the time Tc counted by the counter 15 reaches 840 hours.
When the control signal is output from the timer 11, the control unit 12 erases the remote monitoring program 21 stored in the remote monitoring device 20. For example, the control unit 12 can erase the remote monitoring program 21 stored in the remote monitoring device 20 by overwriting the remote monitoring program 21 with random data.
The reset switch 13 is a switch that can be operated by a maintenance worker who performs maintenance work at the elevator installation site. When the maintenance worker operates the reset switch 13, the time Tc counted by the counter 15 of the timer 11 is reset (Tc equals 0). Since the set time Ts held in the register 14 is set based on the interval Ti at which the maintenance work is performed as described above, the time Tc counted by the counter 15 does not reach the set time Ts at the time when the maintenance worker performs the maintenance work. The maintenance worker operates the reset switch 13 at the end of the maintenance work, for example, to reset the time Tc counted by the counter 15, thereby preventing the remote monitoring program 21 from being erased until the next maintenance work is performed. In the maintenance contract period, the remote monitoring program 21 can be prevented from being erased in the maintenance contract period by the maintenance operator operating the reset switch 13 every time the maintenance operation is performed.
The reset switch 13 is a switch for resetting the time Tc counted by the counter 15 of the timer 11 as described above, but if communication via the communication line 50 is not established between the remote monitoring apparatus 20 and the remote monitoring server 40, the time Tc counted by the counter 15 is not reset even if the reset switch 13 is operated. That is, on condition that communication via the communication line 50 is established between the remote monitoring apparatus 20 and the remote monitoring server 40, the time Tc counted by the counter 15 is reset in accordance with the operation of the reset switch 13.
For example, the control unit 12 monitors the operation of the reset switch 13, and confirms the operation state of the remote monitoring apparatus 20 when the reset switch 13 is operated. Then, if in a state in which the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established, the operation of the reset switch 13 is regarded as being valid, thereby resetting the time Tc counted by the counter 15. Thus, it is possible to prevent the program 21 for remote monitoring from remaining stored in the remote monitoring apparatus 20 without being erased by the operation of the reset switch 13 by the third party until the time Tc counted by the counter 15 of the timer 11 reaches the set time Ts after the maintenance contract is terminated (that is, after the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is cut off).
The program erasing apparatus 10A configured as described above is installed at the elevator installation site together with the remote monitoring apparatus 20 in response to the event that a maintenance contract including remote monitoring of the elevator is signed, for example. In addition, the program erasing apparatus 10A can also be installed later with respect to the installed remote monitoring apparatus 20. When the program erasing apparatus 10A is installed, a set time Ts is set in the register 14 of the timer 11 based on the interval Ti defined by the maintenance contract.
Next, an outline of the operation of the program erasing apparatus 10A according to the present embodiment will be described with reference to fig. 2. FIG. 2 is a flowchart showing an example of the operation of the program erasing apparatus 10A.
When the operation of the program erasing apparatus 10A is started, first, the counter 15 of the timer 11 starts counting time (step S101). Then, the comparator 16 compares the time Tc counted by the counter 15 with the set time Ts held by the register 14, and determines whether or not the time Tc counted by the counter 15 has reached the set time Ts (step S102).
Here, if the time Tc counted by the counter 15 does not reach the set time Ts (step S102: no), it is determined whether or not the reset switch 13 is operated (step S103). Then, if the reset switch 13 is not operated (NO in step S103), the process returns to step S102, and the determination as to whether or not the time Tc counted by the counter 15 has reached the set time Ts is repeated.
On the other hand, when the reset switch 13 is operated (step S103: YES), next, it is judged whether or not communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established (step S104). Then, if the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established (step S104: YES), the time Tc counted by the counter 15 is reset (step S105), and the process returns to step S101 and the counting of the time is restarted. On the other hand, if the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is not established (no in step S104), the operation of the reset switch 13 is regarded as invalid, and the process returns to step S102 to repeatedly determine whether the time Tc counted by the counter 15 reaches the set time Ts.
When the time Tc counted by the counter 15 reaches the set time Ts (step S102: YES), the timer 11 outputs a control signal (step S106). Then, the control unit 12 erases the remote monitoring program 21 stored in the remote monitoring device 20 in accordance with the control signal output from the timer 11 (step S107).
As described above, the program erasing apparatus 10A according to the present embodiment is configured as follows: when the time Tc counted by the counter 15 of the timer 11 reaches the set time Ts, the control unit 12 erases the remote monitoring program 21. Therefore, the remote monitoring program 21 stored in the remote monitoring apparatus 20 can be automatically erased after the maintenance contract is terminated, and even when the remote monitoring apparatus 20 cannot be collected after the maintenance contract is terminated, it is possible to effectively prevent a problem that the remote monitoring program 21 is analyzed and technical information leaks.
< embodiment 2 >
Next, embodiment 2 will be explained. The present embodiment is provided in the following manner: the set time Ts and the reset of the counter 15 are performed using a maintenance terminal carried by a maintenance worker. In the above-described embodiment 1, the counter 15 counts the time based on the clock generated inside the program erasing apparatus 10A, but in the present embodiment, the time is counted based on the time information acquired from the elevator control panel 30. Hereinafter, the same components as those in embodiment 1 are denoted by common reference numerals, and description thereof will be omitted as appropriate, and only the characteristic portions of the present embodiment will be described.
Fig. 3 is a block diagram showing an example of the configuration of the elevator remote monitoring system having the program erasing apparatus 10B according to embodiment 2. The program erasing apparatus 10B according to the present embodiment has a connection portion 17 to which the maintenance terminal 60 is connected, instead of the reset switch 13, as compared with the program erasing apparatus 10A according to embodiment 1 described above. The remote monitoring device 20, the elevator control panel 30, and the remote monitoring server 40 are configured in the same manner as in embodiment 1 described above.
Once the maintenance terminal 60 carried by the maintenance operator is connected to the connection portion 17, the program erasing apparatus 10B cooperates with the maintenance terminal 60. For example, if a maintenance operator uses the maintenance terminal 60 to perform an operation of instructing the reset of the counter 15, a reset signal is input from the maintenance terminal 60 to the program erasing apparatus 10B via the connection portion 17. At this time, if the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established, the input reset signal is regarded as valid, and the time Tc counted by the counter 15 is reset according to the reset signal. For example, as in embodiment 1, whether or not communication is established between the remote monitoring apparatus 20 and the remote monitoring server 40 can be determined by the control unit 12 confirming the operating state of the remote monitoring apparatus 20.
Further, if the maintenance operator uses the maintenance terminal 60 to perform an operation for setting the set time Ts, a setting signal is input from the maintenance terminal 60 to the program erasing apparatus 10B via the connection portion 17. Then, the setting time Ts specified by the maintenance operator is set in the register 14 based on the setting signal. The maintenance operator can set the set time Ts by operating the maintenance terminal 60 by connecting the maintenance terminal 60 to the connection portion 17 of the program erasing apparatus 10B, for example, when performing maintenance work at the elevator installation site for the first time. The set time Ts set by the maintenance operator is, for example, a time obtained by adding a predetermined margin α to the interval Ti at which the maintenance operation is performed at the site. In addition, when it is desired to change the timing of the next maintenance operation, the set time Ts held in the register 14 can be changed by the operation of the maintenance terminal 60.
The program erasing apparatus 10B according to the present embodiment acquires time information from the elevator control panel 30 via the remote monitoring apparatus 20, for example. Then, the counter 15 of the timer 11 counts the time Tc based on the time information acquired from the elevator control panel 30. The time information may be information indicating time such as a system clock of the elevator control panel 30 and global time. In the present embodiment, the time information is acquired from the elevator control panel 30, but the time information may be acquired from another external device.
Next, an outline of the operation of the program erasing apparatus 10B according to the present embodiment will be described with reference to fig. 4. FIG. 4 is a flowchart showing an example of the operation of the program erasing apparatus 10B.
In the present embodiment, first, the maintenance terminal 60 is connected to the connection portion 17 of the program erasing apparatus 10B, and the set time Ts is set in the register 14 of the timer 11 according to the operation of the maintenance operator using the maintenance terminal 60 (step S201). When the set time Ts is set in the register 14, the counter 15 of the timer 11 starts counting time (step S202). Then, the comparator 16 compares the time Tc counted by the counter 15 with the set time Ts held by the register 14, and determines whether or not the time Tc counted by the counter 15 reaches the set time Ts (step S203).
Here, if the time Tc counted by the counter 15 does not reach the set time Ts (no in step S203), it is determined whether or not a reset signal is input from the maintenance terminal 60 via the connection unit 17 (step S204). Then, if the reset signal is not inputted (step S204: No), the process returns to step S203, and the determination as to whether the time Tc counted by the counter 15 has reached the set time Ts is repeated.
On the other hand, when the reset signal is input (yes in step S204), next, it is determined whether or not communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established (step S205). Then, if communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is established (step S205: YES), the time Tc counted by the counter 15 is reset according to the reset signal (step S206), the process returns to step S202, and counting of the time is restarted. On the other hand, if the communication between the remote monitoring apparatus 20 and the remote monitoring server 40 is not established (no in step S205), the reset signal is regarded as invalid, and the process returns to step S203 to repeatedly determine whether the time Tc counted by the counter 15 reaches the set time Ts.
When the time Tc counted by the counter 15 reaches the set time Ts (step S203: YES), the timer 11 outputs a control signal (step S207). Then, in response to the control signal output from the timer 11, the control section 12 erases the remote monitoring program 21 stored in the remote monitoring device 20 (step S208).
As described above, the program erasing apparatus 10B according to the present embodiment is configured as follows: as in the program erasing apparatus 10A according to embodiment 1 described above, the control unit 12 erases the remote monitoring program 21 when the time Tc counted by the counter 15 of the timer 11 reaches the set time Ts. Therefore, the remote monitoring program 21 stored in the remote monitoring apparatus 20 can be automatically erased after the maintenance contract is terminated, and even when the remote monitoring apparatus 20 cannot be collected after the maintenance contract is terminated, it is possible to effectively prevent a problem that the remote monitoring program 21 is analyzed and technical information leaks.
In addition, since the program erasing apparatus 10B according to the present embodiment can reset the time Tc counted by the counter 15 by using the maintenance terminal 60 carried by the maintenance worker, the reset switch 13 can be deleted, and the configuration can be simplified. Further, the program erasing apparatus 10B according to the present embodiment can set and change the set time Ts by using the maintenance terminal 60 carried by the maintenance worker, and thus can flexibly cope with various conditions.
In addition, the program erasing device 10B according to the present embodiment obtains time information from an external device such as the elevator control board 30 and counts time by the counter 15, so that the configuration of the program erasing device 10B can be further simplified, and the program erasing device 10B can be miniaturized.
Although the program erasing apparatuses 10A and 10B are assumed to be separate apparatuses from the remote monitoring apparatus 20 in the above-described embodiments 1 and 2, the program erasing apparatuses 10A and 10B may be implemented as one function of the remote monitoring apparatus 20. The program erasing devices 10A and 10B can also be implemented as a function of the elevator control panel 30.
According to at least one embodiment described above, even when the remote monitoring apparatus 20 cannot be collected after the maintenance contract is completed, it is possible to effectively prevent a disadvantage such as technical information leakage due to analysis of the remote monitoring program 21.
While the embodiments of the present invention have been described above, the above embodiments are provided as examples and are not intended to limit the scope of the invention. The above embodiment can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalent scope thereof.
Description of the symbols
10A, 10B program erasing device
11 time-meter
12 control part
13 reset switch
17 connecting part
20 remote monitoring device
21 remote monitoring program
30 elevator control panel
40 remote monitoring server
The terminal is maintained 60.
Claims (9)
1. A program erasing apparatus, comprising:
a timer for holding a set time set based on an interval for performing maintenance work of the elevator and outputting a control signal when the set time is reached;
a control unit that erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs the control signal; and
a reset switch operable by a maintenance operator who performs the maintenance work,
resetting the time counted by the timer according to the operation of the reset switch.
2. The program erasing apparatus of claim 1,
the time counted by the timer is reset on condition that communication between the remote monitoring apparatus and a remote monitoring server provided at a monitoring center is established.
3. The program erasing apparatus of claim 1,
the timer counts time based on time information acquired from an elevator control panel provided at an installation site of the elevator.
4. A program erasing apparatus, comprising:
a timer for holding a set time set based on an interval for performing maintenance work of the elevator and outputting a control signal when the set time is reached;
a control unit that erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs the control signal; and
a connection part to which a maintenance terminal carried by a maintenance worker who performs the maintenance work is connected,
the time counted by the timer is reset upon input of a reset signal from the maintenance terminal via the connection portion.
5. The program erasing apparatus of claim 4, wherein,
the time counted by the timer is reset on condition that communication between the remote monitoring apparatus and a remote monitoring server provided at a monitoring center is established.
6. The program erasing apparatus of claim 4, wherein,
the setting time of the timer is set based on a setting signal input from the maintenance terminal via the connection unit.
7. The program erasing apparatus of claim 4, wherein,
the timer counts time based on time information acquired from an elevator control panel provided at an installation site of the elevator.
8. A program erasing method which is executed using a timer and a control section, said program erasing method being characterized in that,
the timer holds a set time set based on an interval of performing maintenance work of the elevator, and outputs a control signal when the measured time reaches the set time;
resetting the time counted by the timer in accordance with an operation of a reset switch operable by a maintenance operator who performs the maintenance work;
the control unit erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs a control signal.
9. A program erasing method which is executed using a timer and a control section, said program erasing method being characterized in that,
the timer holds a set time set based on an interval of performing maintenance work of the elevator, and outputs a control signal when the measured time reaches the set time;
a reset signal is input from a maintenance terminal carried by a maintenance worker who performs the maintenance work via a connection portion to which the maintenance terminal is connected, and the time counted by the timer is reset;
the control unit erases a program for remote monitoring stored in a remote monitoring device installed at an installation site of the elevator when the timer outputs a control signal.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2018-007335 | 2018-01-19 | ||
| JP2018007335A JP6483297B1 (en) | 2018-01-19 | 2018-01-19 | Program erasing apparatus and program erasing method |
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| CN110054042A CN110054042A (en) | 2019-07-26 |
| CN110054042B true CN110054042B (en) | 2021-10-08 |
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| CN110745660B (en) * | 2019-10-25 | 2021-12-07 | 上海三菱电梯有限公司 | Elevator monitoring system and elevator monitoring method |
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| JP6483297B1 (en) | 2019-03-13 |
| CN110054042A (en) | 2019-07-26 |
| JP2019123621A (en) | 2019-07-25 |
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