CN112351948A - Point inspection device with function of prompting internal state of elevator shaft - Google Patents
Point inspection device with function of prompting internal state of elevator shaft Download PDFInfo
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- CN112351948A CN112351948A CN201880095396.9A CN201880095396A CN112351948A CN 112351948 A CN112351948 A CN 112351948A CN 201880095396 A CN201880095396 A CN 201880095396A CN 112351948 A CN112351948 A CN 112351948A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bioinformatics & Computational Biology (AREA)
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- Evolutionary Computation (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Provided is an elevator point inspection device capable of presenting a hoistway image corresponding to the position where an abnormality occurs. The elevator spot inspection device is provided with: a storage unit that stores image information of the inside of the hoistway as viewed from the position of the elevator car; an information acquisition unit that acquires information on at least one of sound information and vibration information detected by a detection device provided in the car; and a synchronization unit that generates point inspection image information in which the image information stored in the storage unit and the image information obtained by visualizing the information acquired by the information acquisition unit are synchronized with each other in terms of vertical position.
Description
Technical Field
The present invention relates to a point inspection device having a function of presenting an internal state of an elevator shaft.
Background
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2002-037561
Disclosure of Invention
Problems to be solved by the invention
However, in the abnormal sound detection device described in patent document 1, it is not possible to accurately present a hoistway image corresponding to the position where the abnormal sound is generated. Therefore, it takes a long time to investigate the cause of the occurrence of the abnormality.
The present invention has been made to solve the above problems. The invention aims to provide an elevator point inspection device capable of presenting a hoistway image corresponding to an abnormal occurrence position.
Means for solving the problems
The elevator spot inspection device of the invention comprises: a storage unit that stores image information of the inside of the hoistway as viewed from the position of the elevator car; an information acquisition unit that acquires information on at least one of sound information and vibration information detected by a detection device provided in the car; and a synchronization unit that generates point inspection image information in which the image information stored in the storage unit and the image information obtained by visualizing the information acquired by the information acquisition unit are synchronized with each other in terms of vertical position.
Effects of the invention
According to the present invention, the image information inside the hoistway and the image information obtained by visualizing the information of at least one of the sound information and the vibration information are synchronized with each other in accordance with the position in the vertical direction. Therefore, the hoistway image corresponding to the occurrence position of the abnormality can be easily presented.
Drawings
Fig. 1 is a configuration diagram of an elevator system to which an elevator spot inspection device according to embodiment 1 is applied.
Fig. 2 is a block diagram of a maintenance terminal as an elevator spot inspection device according to embodiment 1.
Fig. 3 is a diagram showing a display screen of a maintenance terminal of an elevator spot inspection device according to embodiment 1.
Fig. 4 is a flowchart for explaining an outline of an operation of a maintenance terminal as an elevator spot inspection device according to embodiment 1.
Fig. 5 is a hardware configuration diagram of a maintenance terminal of the elevator spot inspection device according to embodiment 1.
Fig. 6 is a block diagram of a maintenance terminal as an elevator spot inspection device according to embodiment 2.
Fig. 7 is a diagram showing a display screen of a maintenance terminal of an elevator spot inspection device according to embodiment 2.
Fig. 8 is a flowchart for explaining an outline of an operation of a maintenance terminal as an elevator spot inspection device according to embodiment 2.
Detailed Description
The mode for carrying out the invention is explained with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated explanation of this part is appropriately simplified or omitted.
Fig. 1 is a configuration diagram of an elevator system to which an elevator spot inspection device according to embodiment 1 is applied.
In the elevator system of fig. 1, a hoistway 1 penetrates each floor of a building not shown. The machine room 2 is provided directly above the hoistway 1. The plurality of landings 3 are provided on respective floors of the building. Each of the landings 3 faces the hoistway 1.
The hoisting machine 4 is provided in the machine room 2. The main ropes 5 are wound around the traction machine 4.
The car 6 is disposed inside the hoistway 1. The car 6 is suspended on one side of the main rope 5. The counterweight 7 is disposed inside the hoistway 1. A counterweight 7 is suspended on the other side of the main rope 5.
The landing doors 8 are provided at the entrances of the landings 3. The car door 9 is provided at an entrance of the car 6.
The control device 10 is installed in the machine room 2. The control device 10 is electrically connected to the equipment of the hoisting machine 4 and the car 6. The control device 10 is provided so as to be able to control the elevator as a whole.
The monitoring device 11 is installed in the machine room 2. The monitoring device 11 is electrically connected to the control device 10. The monitoring device 11 is provided so as to be able to monitor the state of the elevator based on information from the control device 10.
The information center apparatus 12 is installed at a place remote from a building where an elevator is installed. For example, the information center device 12 is installed in an elevator maintenance company. The information center device 12 is provided so as to be able to grasp the state of the elevator based on the information from the monitoring device 11.
The maintenance terminal 13 is carried by a maintenance person of the elevator as a point inspection device. The maintenance terminal 13 stores in advance image information of the inside of the hoistway 1 when viewed from the position of the car 6.
In the inspection of an abnormal point of the elevator, a maintenance worker installs a microphone 14 and a vibration sensor 15 as a detection device on the upper part of the car 6 outside the car 6. The maintenance person operates the maintenance terminal 13 to thereby raise and lower the car 6 via the control device 10.
At this time, the maintenance terminal 13 stores the sound information from the microphone 14. The maintenance terminal 13 stores vibration information from the vibration sensor 15. The maintenance terminal 13 simultaneously displays image information of the inside of the hoistway 1 when viewed from the position of the car 6, image information obtained by visualizing sound information from the microphone 14, and information obtained by visualizing vibration information from the vibration sensor 15. At this time, the maintenance terminal 13 also synchronously outputs the sound information.
Next, the maintenance terminal 13 will be described with reference to fig. 2.
Fig. 2 is a block diagram of a maintenance terminal as an elevator spot inspection device according to embodiment 1.
As shown in fig. 2, the maintenance terminal 13 includes a storage unit 13a, an information acquisition unit 13b, a synchronization unit 13c, and an output control unit 13 d.
The storage portion 13a stores image information of the inside of the hoistway 1 when viewed from the position of the car 6. For example, the storage unit 13a stores image information captured by a 180-degree imaging device or a 360-degree imaging device, not shown, attached to the car 6 when the car 6 travels at a low speed when an elevator is newly installed. For example, image information generated from design information of an elevator using virtual Reality technology is stored.
The information acquiring unit 13b acquires audio information from the microphone 14. The information acquiring unit 13b acquires vibration information from the vibration sensor 15. The information acquiring unit 13b acquires the movement start position information, the movement direction information, the acceleration information, and the movement time information of the car 6 from the control device 10 as the control information of the elevator.
The synchronizing unit 13c generates the point inspection image information by synchronizing the image information stored in the storage unit 13a with the image information obtained by visualizing at least one of the sound information and the vibration information acquired by the information acquiring unit 13 b. The synchronization unit 13c generates point inspection image information synchronized with the position in the vertical direction based on the elevator control information. The synchronizing unit 13c synchronizes the audio information acquired by the information acquiring unit 13b with the point inspection image information.
The output control unit 13d outputs the point inspection image information synchronized by the synchronizing unit 13c in accordance with the moving speed of the car 6 in the vertical direction based on the elevator control information to the display screen of the maintenance terminal 13. At this time, the output controller 13d outputs the audio information synchronized with the point inspection image information to a speaker, not shown, of the maintenance terminal 13.
Next, a display screen of the maintenance terminal 13 will be described with reference to fig. 3.
Fig. 3 is a diagram showing a display screen of a maintenance terminal of an elevator spot inspection device according to embodiment 1.
As shown in fig. 3, image information inside the hoistway 1 is displayed on the upper portion of the display screen. Image information obtained by visualizing the sound information is displayed on the display screen directly below the image information inside the hoistway 1. The image information obtained by visualizing the vibration information of the car 6 in the front-rear direction is displayed on the display screen directly below the image information obtained by visualizing the sound information. The image information obtained by visualizing the vibration information in the left-right direction of the car 6 is displayed on the display screen directly below the image information obtained by visualizing the vibration information in the front-rear direction of the car 6. The image information obtained by visualizing the vibration information of the car 6 in the vertical direction is displayed on the display screen directly below the image information obtained by visualizing the vibration information of the car 6 in the horizontal direction. The progress bar is displayed on the display screen directly below the image information obtained by visualizing the vertical vibration information of the car 6.
The left side of the progress bar corresponds to the lower side of the hoistway 1. The right side of the progress bar corresponds to the upper side of the hoistway 1.
For example, the image information inside the hoistway 1 is reproduced as a moving image from the lower side to the upper side of the hoistway 1. At this time, in the progress bar, the slider moves from the left side to the right side in accordance with the generation of the moving image. The position of the slider indicates the position of sound information and vibration information corresponding to image information inside the hoistway 1.
Next, an outline of the operation of the maintenance terminal 13 will be described with reference to fig. 4.
Fig. 4 is a flowchart for explaining an outline of an operation of a maintenance terminal as an elevator spot inspection device according to embodiment 1.
In step S1, the maintenance terminal 13 reads the sound information and vibration information at the time of the abnormal point detection. After that, the maintenance terminal 13 performs the operation of step S2. In step S2, the maintenance terminal 13 reads image information of the inside of the hoistway 1. After that, the maintenance terminal 13 performs the operation of step S3.
In step S3, the maintenance terminal 13 generates spot inspection image information by synchronizing image information inside the hoistway 1, image information obtained by visualizing sound information at the time of abnormal spot inspection, and image information obtained by visualizing vibration information at the time of abnormal spot inspection. After that, the maintenance terminal 13 performs the operation of step S4. In step S4, the maintenance terminal 13 reproduces the checkup image information. After that, the maintenance terminal 13 ends the operation.
According to embodiment 1 described above, the image information inside the hoistway 1 and the image information obtained by visualizing at least one of the sound information and the vibration information are synchronized with each other in accordance with the position in the vertical direction. Therefore, the image of the hoistway 1 corresponding to the occurrence position of the abnormality can be easily presented. As a result, the cause of the abnormality can be found in a short time without depending on the feeling of the operator.
At this time, the reproduction start position, the reproduction speed, and the reproduction end position of the point inspection image information are determined based on the control information of the elevator. Therefore, one file may be referred to as image information inside the hoistway 1. As a result, the amount of stored data can be reduced.
In the abnormal point detection, the imaging device is not required, and the microphone 14 and the vibration sensor 15 may be attached. Therefore, the required sensors can be minimized, and the spot inspection tool can be made inexpensive.
The microphone 14 and the vibration sensor 15 may be provided at all times. In this case, the abnormality can be checked even when the elevator is normally operated. Therefore, it is possible to detect an abnormality that occurs only when many passengers ride on the car 6.
In addition, the sound information is synchronized with the point inspection image information. Therefore, the image of the hoistway 1 corresponding to the position where the abnormal sound is generated can be easily presented.
Further, image information of the inside of the hoistway 1 is captured by an imaging device. Therefore, the image of the hoistway 1 corresponding to the occurrence position of the abnormality can be easily presented in a state suitable for the actual situation.
Further, the image information of the inside of the hoistway 1 is generated based on design information of the elevator. Therefore, even when the interior of the hoistway 1 is dark, an image of the hoistway 1 corresponding to the occurrence position of the abnormality can be easily presented.
Next, an example of the maintenance terminal 13 will be described with reference to fig. 5.
Fig. 5 is a hardware configuration diagram of a maintenance terminal of the elevator spot inspection device according to embodiment 1.
The functions of the maintenance terminal 13 may be implemented by a processing circuit. For example, the processing circuitry includes at least one processor 16a and at least one memory 16 b. The processing circuitry comprises at least one dedicated hardware 17, for example.
When the processing circuitry comprises at least one processor 16a and at least one memory 16b, the functions of the maintenance terminal 13 are implemented in software, firmware or a combination of software and firmware. At least one of the software and the firmware is described as a program. At least one of software and firmware is stored in the at least one memory 16 b. The at least one processor 16a realizes the functions of the maintenance terminal 13 by reading out and executing programs stored in the at least one memory 16 b. The at least one processor 16a is also referred to as a central processing unit, arithmetic unit, microprocessor, microcomputer, DSP. For example, the at least one memory 16b is a nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, a magnetic disk, a floppy disk, an optical disk, a compact disk, a mini disk, a DVD, or the like.
When the processing circuit comprises at least one dedicated hardware 17, the processing circuit is for example implemented by a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA or a combination thereof. For example, each function of the maintenance terminal 13 is realized by a processing circuit. For example, the functions of the maintenance terminal 13 are realized by a processing circuit in a unified manner.
For each function of the maintenance terminal 13, a part may be implemented by dedicated hardware 17, and the other part may be implemented by software or firmware. For example, the function of the synchronization unit 13c may be realized by a processing circuit as dedicated hardware 17, and a function other than the function of the synchronization unit 13c may be realized by at least one processor 16a reading and executing a program stored in at least one memory 16 b.
In this way, the processing circuitry implements the functions of the maintenance terminal 13 via hardware 17, software, firmware, or a combination thereof.
Although not shown, the functions of the control device 10 are also realized by a processing circuit equivalent to the processing circuit that realizes the functions of the maintenance terminal 13. The functions of the monitoring device 11 are also realized by a processing circuit equivalent to the processing circuit that realizes the functions of the maintenance terminal 13. The functions of the information center apparatus 12 are also realized by a processing circuit equivalent to the processing circuit for realizing the functions of the maintenance terminal 13.
Fig. 6 is a block diagram of a maintenance terminal as an elevator spot inspection device according to embodiment 2. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this part is omitted.
The maintenance terminal 13 according to embodiment 2 is a maintenance terminal in which a difference calculation unit 13e and a visual effect determination unit 13f are added to the maintenance terminal 13 according to embodiment 1.
The difference calculation unit 13e calculates the time of the range in which the difference between the sound information at the time of the abnormal point detection and the sound information at the time of the normal operation or the difference between the vibration information occurs. The visual effect determination unit 13f determines the visual effect based on the calculation result of the difference calculation unit 13 e.
Next, a display screen of the maintenance terminal 13 will be described with reference to fig. 7.
Fig. 7 is a diagram showing a display screen of a maintenance terminal of an elevator spot inspection device according to embodiment 2.
In fig. 7, when the difference between the sound information at the time of the abnormal point detection and the sound information at the time of the normal state is larger than the preset difference, the visual effect is output. For example, the color of the image information inside the hoistway 1 changes according to the magnitude of the difference. For example, a noise effect such as a sandstorm effect is added to the image information inside the hoistway 1.
In fig. 7, when the difference between the vibration information at the time of the abnormal point detection and the vibration information at the time of the normal state is larger than the preset difference, the visual effect is output. For example, the image information inside the hoistway 1 swings according to the direction and magnitude of the difference. For example, when the vibration of the car 6 in the front-rear direction is large, the image information in the hoistway 1 becomes large and small. For example, when the car 6 vibrates largely in the left-right direction, the image information in the hoistway 1 moves leftward and rightward at a time. For example, when the vibration of the car 6 in the vertical direction is large, the image information in the hoistway 1 moves upward for a while and moves downward for a while.
Next, an outline of the operation of the maintenance terminal 13 will be described with reference to fig. 8.
Fig. 8 is a flowchart for explaining an outline of an operation of a maintenance terminal as an elevator spot inspection device according to embodiment 2.
In step S11, the maintenance terminal 13 reads the sound information and vibration information at the time of the abnormal point detection. After that, the maintenance terminal 13 performs the operation of step S12. In step S12, the maintenance terminal 13 reads the sound information and vibration information at the normal time. After that, the maintenance terminal 13 performs the operation of step S13.
In step S13, the maintenance terminal 13 calculates the time when the difference between the sound information at the time of the abnormal point detection and the sound information at the time of the normal operation or the range in which the difference between the vibration information occurs. After that, the maintenance terminal 13 performs the operation of step S14. In step S14, the maintenance terminal 13 decides the visual effect based on the calculation result. After that, the maintenance terminal 13 performs the operation of step S15.
In step S15, the maintenance terminal 13 reads image information of the inside of the hoistway 1. After that, the maintenance terminal 13 performs the operation of step S16. In step S16, the maintenance terminal 13 generates spot inspection image information by synchronizing image information inside the hoistway 1, image information obtained by visualizing sound information at the time of abnormal spot inspection, and image information obtained by visualizing vibration information at the time of abnormal spot inspection. After that, the maintenance terminal 13 performs the operation of step S17. In step S17, the maintenance terminal 13 reproduces the checkup image information. After that, the maintenance terminal 13 ends the operation.
According to embodiment 2 described above, the maintenance terminal 13 outputs the visual effect based on the difference between the abnormal point inspection time information and the normal time information. Therefore, it is possible to accurately present an abnormality that is difficult to distinguish from image information visualized from sound information or vibration information. As a result, even a maintenance person who is not used to the image information obtained by visualizing the sound information or the vibration information can easily recognize the presence or absence of the abnormality and the occurrence portion of the abnormality.
Alternatively, the information may be acquired periodically, and the visual effect based on the difference between the information acquired last time and the information acquired this time may be output. In this case, it is possible to accurately present deterioration that is difficult to distinguish from image information visualized from sound information or vibration information.
In addition, the maintenance terminal 13 according to embodiment 1 or embodiment 2 may generate the spot inspection image information obtained by visualizing an array of information at a plurality of past times. In this case, the progress of an abnormality that is difficult to distinguish with the feeling of the maintenance person can be accurately prompted.
The maintenance terminal 13 according to embodiment 1 or embodiment 2 may be applied to an elevator without the machine room 2. In this case, too, the hoistway image corresponding to the occurrence position of the abnormality can be easily presented.
The maintenance terminal 13 according to embodiment 1 or embodiment 2 may be a tablet terminal. In this case, the orientation of the image information inside the hoistway 1 may be changed according to the change in the orientation of the tablet terminal. In this case, the image of the hoistway 1 corresponding to the occurrence position of the abnormality can be presented more easily.
Industrial applicability
As described above, the monitoring device for an elevator of the present invention can be used in an elevator system.
Description of the reference symbols
1: a hoistway; 2: a machine room; 3: a landing; 4: a traction machine; 5: a main rope; 6: a car; 7: a counterweight; 8: a landing door; 9: a car door; 10: a control device; 11: a monitoring device; 12: an information center device; 13: maintaining the terminal; 13 a: a storage unit; 13 b: an information acquisition unit; 13 c: a synchronization section; 13 d: an output control section; 13 e: a difference calculation unit; 13 f: a visual effect determination section; 14: a microphone; 15: a vibration sensor; 16 a: a processor; 16 b: a memory; 17: hardware.
Claims (6)
1. An elevator spot inspection device, comprising:
a storage unit that stores image information of the inside of the hoistway as viewed from the position of the elevator car;
an information acquisition unit that acquires information on at least one of sound information and vibration information detected by a detection device provided in the car; and
and a synchronization unit that generates point inspection image information by synchronizing the image information stored in the storage unit with image information obtained by visualizing the information acquired by the information acquisition unit, in accordance with a position in a vertical direction.
2. The elevator spot inspection device according to claim 1,
the synchronization unit synchronizes the audio information acquired by the information acquisition unit with the point inspection image information.
3. The elevator spot inspection device according to claim 1,
the synchronization unit determines a visual effect based on a difference between the information at the time of the abnormal point inspection acquired by the information acquisition unit and the information at the time of the normal inspection.
4. The elevator spot inspection device according to claim 1,
the synchronization unit generates point inspection image information obtained by visualizing an arrangement of information at a plurality of past times acquired by the information acquisition unit.
5. The elevator spot inspection device according to any one of claims 1 to 3,
the storage unit stores image information captured by an imaging device mounted on the car as image information of the inside of the hoistway.
6. The elevator spot inspection device according to any one of claims 1 to 3,
the storage unit stores image information generated based on design information of the elevator as image information of the interior of the hoistway (1).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/026348 WO2020012608A1 (en) | 2018-07-12 | 2018-07-12 | Inspection device comprising function to indicate state inside elevator shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112351948A true CN112351948A (en) | 2021-02-09 |
| CN112351948B CN112351948B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880095396.9A Active CN112351948B (en) | 2018-07-12 | 2018-07-12 | Point inspection device with function of prompting internal state of elevator shaft |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6780808B2 (en) |
| KR (1) | KR102346448B1 (en) |
| CN (1) | CN112351948B (en) |
| WO (1) | WO2020012608A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115402897A (en) * | 2021-05-27 | 2022-11-29 | 三菱电机株式会社 | Elevator control device |
| CN116997523A (en) * | 2021-03-18 | 2023-11-03 | 三菱电机楼宇解决方案株式会社 | Device for confirming water immersion condition of elevator shaft bottom |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114829281B (en) * | 2020-02-05 | 2022-12-06 | 三菱电机楼宇解决方案株式会社 | Point inspection auxiliary system of elevator |
| US11390488B2 (en) | 2020-06-26 | 2022-07-19 | Otis Elevator Company | Visual inspection diagnostics |
| WO2024009389A1 (en) * | 2022-07-05 | 2024-01-11 | 三菱電機株式会社 | Assistance system for arrangement work on devices of elevator |
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- 2018-07-12 JP JP2020529920A patent/JP6780808B2/en active Active
- 2018-07-12 KR KR1020217001817A patent/KR102346448B1/en active IP Right Grant
- 2018-07-12 WO PCT/JP2018/026348 patent/WO2020012608A1/en active Application Filing
- 2018-07-12 CN CN201880095396.9A patent/CN112351948B/en active Active
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| JPH09208149A (en) * | 1996-02-06 | 1997-08-12 | Hitachi Building Syst Co Ltd | Abnormality detecting device of equipment in hoistway of elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116997523A (en) * | 2021-03-18 | 2023-11-03 | 三菱电机楼宇解决方案株式会社 | Device for confirming water immersion condition of elevator shaft bottom |
| CN115402897A (en) * | 2021-05-27 | 2022-11-29 | 三菱电机株式会社 | Elevator control device |
| CN115402897B (en) * | 2021-05-27 | 2023-08-08 | 三菱电机株式会社 | Elevator control device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102346448B1 (en) | 2022-01-03 |
| KR20210013287A (en) | 2021-02-03 |
| CN112351948B (en) | 2022-07-22 |
| WO2020012608A1 (en) | 2020-01-16 |
| JP6780808B2 (en) | 2020-11-04 |
| JPWO2020012608A1 (en) | 2020-12-17 |
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