CN112225025A - Method and device for monitoring engagement condition of lock hook of elevator landing door lock - Google Patents
Method and device for monitoring engagement condition of lock hook of elevator landing door lock Download PDFInfo
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- CN112225025A CN112225025A CN202011178816.5A CN202011178816A CN112225025A CN 112225025 A CN112225025 A CN 112225025A CN 202011178816 A CN202011178816 A CN 202011178816A CN 112225025 A CN112225025 A CN 112225025A
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- hook
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- landing door
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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
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
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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
- B66B5/0037—Performance analysers
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Abstract
The invention discloses a method and a device for monitoring the engagement condition of a door lock hook of an elevator landing door, which realize the online monitoring of the engagement condition of the door lock hook of the elevator landing door and ensure the operation safety by the steps of acquiring and storing the data of the engagement standard state of the door lock hook of the elevator landing door, acquiring and transmitting the data of the engagement actual state of the door lock hook of the elevator landing door in the actual operation of the elevator, comparing the data of the engagement actual state of the door lock hook of the elevator landing door with the data of the engagement standard state of the door lock hook of the elevator landing door, outputting judgment information when the data comparison difference exceeds a set threshold value or a set condition, and the like.
Description
Technical Field
The invention relates to the field of elevators, in particular to a method and a device for monitoring the engagement condition of a door lock hook of an elevator landing door.
Background
When elevator layer door lock latch hook meshing amount is not conform to the requirements, the disconnection of electrical contact made the safety circuit cut off this moment, finally made the elevator unable to continue to move, because each layer door lock signal of elevator is concatenated together, so although know the layer door and break down, can not indicate that the layer door of which floor breaks down, need the maintenance personnel to go up the sedan-chair top and carry out manual investigation next floor this moment, when the floor is more, efficiency is very low, and can inspect carelessly neglected, causes the repeat work.
In another situation, when the meshing amount of the lock hook of the door lock of the elevator floor is not in line with the requirements, the electrical contact is in virtual connection at the moment, the operation of the elevator cannot be influenced immediately, but the potential hazard of emergency stop of the elevator exists due to poor contact of the contact, and maintenance personnel are easy to miss during daily inspection.
In the invention described in conventional patent document 1CN108238519A, an optical camera is continuously used for shooting, and respective layers of door lock images are extracted from a plurality of images to determine abnormality, and the determination method is to supplement light by a light projector, calculate the gap between the left and right sides and the upper side of a lock hook according to the brightness change of a picture, and determine that a door lock is abnormal when the gap exceeds a threshold value. And each time the elevator car is started, the elevator car must be moved to the uppermost layer firstly, and the floor information of the door lock can be identified.
However, in the invention of patent document 1, a light projector must be added, and the invention is not applicable in a strong light environment such as a sightseeing elevator. In addition, if an old building or an ultra-high building is encountered, the problem that the building is inclined exists, and the gaps between the left side and the right side and the upper side of the lock hook obtained by shooting by the method are different from the gap values obtained when the building is normal and vertical, so that a large amount of misjudgments can be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method and a device for monitoring the engagement condition of a lock hook of a door lock of an elevator landing door, which can monitor the engagement condition of the lock hook of the door lock of the landing door, identify a corresponding floor and send floor information of which the engagement quantity does not meet the requirement to a maintenance worker for inspection.
In order to solve the technical problem, the method for monitoring the engagement condition of the lock hook of the elevator landing door lock comprises the following steps:
step one, acquiring and storing data of an elevator landing door lock latch hook engagement standard state;
acquiring and transmitting actual state data of the elevator landing door lock hook engagement in the actual operation of the elevator;
step three, comparing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement;
and step four, outputting judgment information when the data comparison difference exceeds a set threshold value or a set condition.
Preferably, the data of the engagement state of the elevator landing door lock hook is the proportion of the engagement amount of the elevator landing door fixed lock hook in the vertical direction of the hook body of the rotating hook when the elevator landing door fixed lock hook is engaged with the rotating hook.
Preferably, the proportion threshold is P/L, wherein P is the weight of the rotating hook and the fixed hook in the vertical direction, L is the length of the rotating hook in the vertical direction, and when the proportion of the clamping amount of the elevator landing door fixed hook in clamping the rotating hook in the vertical direction of the rotating hook is smaller than P/L in actual operation, dangerous judgment information is output.
Preferably, the value of P is more than or equal to 7.
Preferably, P is in the range of 9-11.
Preferably, the data of the engagement state of the door lock hook of the elevator landing door is the included angle between the radial scribed line fixed by the door lock roller and the horizontal track.
Preferably, the comparison rotation angle difference threshold is an angle, where a is arctan (P/M), where P is an overlap amount of the rotating hook and the fixed hook in the vertical direction, and M is an arm length from an inner edge of a hook body of the rotating hook to a roller rotation center, when an angle between a fixed radial reticle of the door lock roller and the horizontal track in actual operation and an angle between the fixed radial reticle of the door lock roller and the horizontal track in an elevator floor door lock hook engagement health state differ by more than an angle, the danger warning information is output.
Preferably, the value of P is more than or equal to 7.
Preferably, P is in the range of 9-11.
Preferably, the data of the engagement state of the door lock hook of the elevator landing door is a critical position marking line mark arranged on the hook body of the rotating hook.
Preferably, the condition set by the data comparison difference is that a critical position marking is identifiable, and when the critical position marking provided on the hook body of the rotating hook is identifiable in actual operation, a danger warning message is output.
Preferably, the data of the engagement state of the lock hook of the elevator landing door lock is a graphic mark formed by engraving the rotating hook and the landing door device around the lock hook.
Preferably, the condition set by the data comparison difference is that the rotary hook and a graphic mark formed by engraving the landing door device around the lock hook are obviously dislocated in actual operation, and danger warning information is output.
Preferably, the meshing state data of the elevator landing door lock hook further comprises the floor sequence number information where the elevator landing door lock hook is located, and the floor information where the elevator landing door lock hook is located is output simultaneously when the danger warning information is output.
The invention also relates to a device for monitoring the engagement condition of the lock hook of the elevator landing door lock, which comprises the following components:
the data acquisition unit is used for acquiring the data of the standard state of the engagement of the elevator landing door lock hook and the data of the actual state of the engagement of the elevator landing door lock hook in real-time operation;
the data processing module is used for comparing and analyzing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement;
the data storage and transmission module is used for transmitting and storing data between the data acquisition device and the data processing module;
and the data display module is used for displaying and outputting the related information when the data comparison difference exceeds a set threshold or a set condition.
Preferably, the data collector is a high-definition camera or a TOF sensor;
the invention also relates to an elevator system comprising:
at least one elevator car is installed in the elevator system according to the device for monitoring the engagement condition of the door lock hook of the elevator landing door.
The invention can achieve the technical effects that:
the elevator landing door lock hook meshing condition monitoring device has the function of automatically monitoring the meshing condition of the elevator landing door lock hook, maintenance personnel do not need to go to the car roof in person to check floors one by one, and the floor with unqualified meshing of the lock hook can be automatically positioned through the elevator landing door lock hook meshing condition monitoring device and then manual maintenance is carried out.
The invention can greatly improve the working efficiency and accuracy of maintenance personnel. The signal detection and transmission of the device do not relate to an elevator system, and the device is an independent system, has strong universality, and is safe and effective.
The invention adopts a coincidence quantity proportion calculation method to solve the problem of misjudgment in the prior art and more accurately monitor the engagement condition of the lock hook of the elevator landing door lock.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a logic block diagram of a method for monitoring the engagement of a latch hook of an elevator landing door latch according to the present invention;
fig. 2 is a schematic structural view of a door lock hook of an elevator landing door;
FIG. 3 is a schematic diagram of a method for calculating the proportion of the overlapping amount;
FIG. 4 is a schematic diagram of a judging method using a line marking method;
FIG. 5 is a schematic diagram of a determination method using a pattern method.
Description of reference numerals:
1 rotating hook 2 fixed hook
3 door lock gyro wheel 4 layers of door device dust covers
5 rotating hook body 6 two-dimensional code mark
7 moving contact 8 stationary contact
9 marking line 10 graphic mark
Detailed Description
Example one
The method for monitoring the engagement condition of the lock hook of the elevator landing door lock disclosed by the invention comprises the following steps as shown in figure 1:
step one, acquiring and storing data of the standard state of the engagement of a lock hook of a door lock of an elevator landing.
In the step, the image collector can be installed firstly, the image collector is installed in front of the top of the elevator car and faces to the position of the door lock hook, and pictures of the door lock hook of each floor are shot. The power supply of the image collector obtains electricity from the car top station, and other lines and signal transmission of the elevator cannot be influenced.
Standard status data is then collected. A group of door lock latch hook photos qualified in meshing are manually shot on site, the photos are set as standard state data and stored in a local database of the image processing module, the standard state data do not need to be shot again every time, the door lock latch hooks of the same structure only need to be preset once, and then the standard data can be directly called for judgment.
And step two, acquiring and transmitting actual state data of the elevator landing door lock latch hook engagement in the actual operation of the elevator.
Firstly, the current floor information can be marked by directly manually marking ink or stickers at the designated position (within the acquisition range of the image collector) near the latch hook, and the two-dimensional code mark 6 is optimally used. The two-dimensional code sticker is best pasted on the dustproof cover of the landing door device and is most striking. After the image collector collects the two-dimension code image of the sticker, the image processing module can read all information such as the elevator number and the floor number to which the current floor belongs through identifying the two-dimension code.
Then, the image collector starts the shooting state, the elevator preferably runs from the lowest floor once from bottom to top, automatically collects a picture once when a door lock is identified on the way, and marks physical floors 1, 2 and 3 … … from bottom to top, and so on. This identification mode can compare with two-dimensional code information, prevents that the two-dimensional code from pasting wrong floor, and this step just can go on before elevator hands over the customer, when the floor is pasted wrong to the two-dimensional code sign, in time carries out the repayment and provides support for maintaining the correctness of work in the future.
Then, images are collected, the elevator is operated under the running state of the camera, the image collector continuously scans and matches the appearance of the pattern of the lock hook of the door lock, and when the lock hook is matched, the current images are collected once and cached.
And step three, comparing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement.
And comparing the picture of the actual state of the engagement of the lock hook of the door lock acquired by the image acquisition device with the standard picture in the local database, matching the lock hook engagement amount of the two pictures, and when the lock hook engagement amount of the lock hook of the picture of the actual state of the engagement of the lock hook of the door lock is smaller than the threshold value of the standard picture, judging that the engagement is unqualified, and marking the picture, the floor and the elevator number information.
Specifically, when passing through a floor, the roller of the door lock is focused to determine the position of the door lock, the size of the roller 3 of the door lock is determined, the relative position of the roller 3 and the lock hook is a unique value, the door lock can be quickly positioned by focusing the roller 3, and the method can solve the problem that the elevator cannot find the position of the lock hook in time in the quick moving process. After finding the latch hook, carry out the figure collection to the latch hook fast. The specific mode can adopt a method of scribing a line in the radial direction of the roller wheel, and the meshing state of the lock hook is monitored by measuring the included angle between the fixed radial scribed line of the roller wheel of the lock and the horizontal track through a door; and comparing the rotation angle difference threshold value to alpha degree, wherein alpha is arctan (P/M), wherein P is the vertical overlapping amount of the rotating hook 1 and the fixed hook 2, M is the arm length from the inner edge of the rotating hook body 5 to the rotation center of the roller 3, and when the angle between the fixed radial reticle of the door lock roller 3 and the horizontal track in actual operation and the angle between the fixed radial reticle of the door lock roller 3 and the horizontal track in an elevator floor door lock hook meshing health state are different by more than alpha degree, outputting danger warning information. The value of P is more than or equal to 7. Preferably, P is in the range of 9-11.
Preferably, the judgment adopts a coincidence quantity proportion calculation method: and the proportion threshold value is P/L, wherein P is the weight of the rotating hook 1 and the fixed hook 2 in the vertical direction, L is the length of the rotating hook body 5 in the vertical direction, and when the proportion of the clamping amount of the elevator landing door fixed hook 2 in the vertical direction of the rotating hook body when the rotating hook 1 is clamped is smaller than P/L in actual operation, dangerous judgment information is output. The value of P is more than or equal to 7. Preferably, P is in the range of 9-11.
For example, the vertical direction overlapping amount of the rotating hook 1 and the fixed hook is proportionally calculated. If the overlapping amount of the standard picture is 10mm, namely, the height of the rotating hook 1 in the vertical direction is 10mm to be overlapped with the fixed hook 2. However, the actual size of the rotating hook 1 cannot be really reflected on the picture, and the ratio of the vertical overlapping amount of the rotating hook 1 and the fixed hook 2 to the vertical total length of the rotating hook 1 can only be reflected. If the vertical total length of the rotating hook body 5 is 12mm, when 10mm is the standard weight, the ratio of the standard weight to the total length is P: L10: 12, namely 5:6, which can be accurate to 0.833. And setting a threshold value, and determining the poor working condition when the ratio of the vertical overlapping amount of the rotating hook 1 and the fixed hook 2 on a certain layer to the vertical total length of the rotating hook 1 is less than 0.75. In this condition, the elastic pressing amount of the movable contact 7 and the stationary contact 8 is insufficient, and the condition of virtual contact is likely to occur.
And step four, outputting judgment information when the data comparison difference exceeds a set threshold value or a set condition.
When a fault occurs, the information of the layer is attached with the elevator number and the contract number of the elevator and is sent to a remote service center in a wireless or wired transmission mode, and the service center allocates maintenance personnel to quickly go to the site to maintain the fault layer.
Example two:
the difference with the first embodiment is that the two-dimensional code can also be directly attached to the fixed hook 2, and the two-dimensional code is focused during focusing, and the fixed hook 2 has a small area, so that the requirement on an image collector is high, and equipment with high definition is required.
The image collector can adopt a high-definition camera, a TOF sensor and the like.
Example three:
the method for judging whether the meshing amount meets the requirement comprises the following steps:
as shown in fig. 4, a marking line 9 is formed on the landing door device behind the rotating hook 1, and the position of the marking line is at a critical point where the engagement amount is acceptable. Under normal working conditions, the rotating hook 1 can completely cover the marking line 9, and when the engagement amount is not satisfactory, the marking line 9 can be exposed. When the image collector scans, as long as the mark line 9 is shot, the engagement amount of the layer of lock hooks is considered to be not in accordance with the requirement.
Example four:
the method for judging whether the meshing amount meets the requirement comprises the following steps:
as shown in fig. 5, a graphic mark 10 is made on the rotating hook 1 and the landing door device around the locking hook, the graphic mark may be a two-dimensional code or a pattern, and a part of the graphic mark 10 needs to be on the rotating hook 1 and a part needs to be on the landing door device around. Under the normal operating mode, the engagement amount of the rotating hook 1 meets the requirement, the graphic mark 10 is marked as a graphic A, when the engagement amount does not meet the requirement, the graphic mark 10 can deform and is marked as a graphic B, when the graphic B is collected by the image collector, the graphic mark is compared with the graphic A, and if the engagement amount is not consistent, the engagement amount of the layer of lock hook is considered to be not met.
Example five:
in order to realize the method, the device for monitoring the engagement condition of the elevator landing door lock hook comprises a monitoring device cooperative system consisting of a data acquisition unit, a data processing module, a data storage and transmission module and a data display module, wherein the data acquisition unit is used for acquiring the elevator landing door lock hook engagement standard state data and the elevator landing door lock hook engagement actual state data in real-time operation; the data processing module is used for comparing and analyzing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement; the data storage and transmission module is used for transmitting and storing data between the data acquisition device and the data processing module; and the data display module is used for displaying and outputting the related information when the data comparison difference exceeds a set threshold or a set condition. The data acquisition device can be selected as a high-definition camera or a TOF sensor, and the data display module can be a computer and other devices in a property equipment control room where the elevator is located; the data collector is arranged at the position of the elevator car, which is convenient for monitoring and shooting the door lock of the elevator landing door.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (15)
1. A method of monitoring an elevator landing door latch hook engagement condition, the method comprising the steps of:
step one, acquiring and storing data of an elevator landing door lock latch hook engagement standard state;
acquiring and transmitting actual state data of the elevator landing door lock hook engagement in the actual operation of the elevator;
step three, comparing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement;
and step four, outputting judgment information when the data comparison difference exceeds a set threshold value or a set condition.
2. The method of monitoring the engagement of an elevator landing door latch hook according to claim 1, wherein: the elevator landing door lock hook engagement state data is the proportion of the clamping amount of the elevator landing door fixed lock hook in the vertical direction of the hook body of the rotating hook when the rotating hook is clamped by the elevator landing door fixed lock hook.
3. The method of monitoring the engagement of the latch hook of an elevator landing door latch according to claim 2, wherein: and the proportion threshold is P/L, wherein P is the weight of the rotating hook and the fixed hook in the vertical direction, L is the length of the rotating hook in the vertical direction, and when the proportion of the clamping amount of the elevator landing door fixed hook in the process of clamping the rotating hook in the vertical direction of the rotating hook body is smaller than P/L in actual operation, dangerous judgment information is output.
4. The method of monitoring the engagement of an elevator landing door latch hook according to claim 1, wherein: and the data of the engagement state of the door lock latch hook of the elevator landing door is the included angle between the fixed radial scribed line of the door lock roller and the horizontal track.
5. The method of monitoring the engagement of the latch hook of an elevator landing door latch according to claim 3, wherein: and when the angle difference between the door lock roller fixed radial reticle and the horizontal track in actual operation and the angle difference between the door lock roller fixed radial reticle and the horizontal track in an elevator floor door lock hook meshing health state is greater than the angle alpha, outputting danger warning information.
6. The method of monitoring the engagement of the latch hook of an elevator landing door latch according to claim 3 or 5, wherein: the value of P is more than or equal to 7.
7. The method of monitoring the engagement of the latch hook of an elevator landing door latch according to claim 3 or 5, wherein: the value range of P is 9-11.
8. The method of monitoring the engagement of an elevator landing door latch hook according to claim 1, wherein: and the data of the engagement state of the lock hook of the elevator landing door lock is a critical position scribed line mark arranged on the hook body of the rotating hook.
9. The method of monitoring the engagement of the elevator landing door latch hook according to claim 6, wherein: and the condition set by the data comparison difference is that the critical position scribed line mark can be identified, and when the critical position scribed line mark arranged on the hook body of the rotating hook can be identified in actual operation, danger warning information is output.
10. The method of monitoring the engagement of an elevator landing door latch hook according to claim 1, wherein: the data of the engagement state of the lock hook of the elevator landing door lock is a graphic mark formed by engraving the rotating hook and the landing door device around the lock hook.
11. The method of monitoring the engagement of the elevator landing door latch hook according to claim 8, wherein: the condition set by the data comparison difference is that the graphic marks formed by the surface engraving of the rotating hook and the layer door device around the lock hook are obviously dislocated in the actual operation, and danger warning information is output.
12. Method for monitoring the engagement of the locking hooks of the door locks of the elevator landing doors according to any of the preceding claims 1 to 11, characterized in that: the elevator landing door lock latch hook meshing state data further comprise floor sequence number information where the elevator landing door lock latch hook is located, and the floor information where the elevator landing door lock latch hook is located is output simultaneously when the danger warning information is output.
13. An apparatus for monitoring the engagement of a latch hook of an elevator landing door latch, comprising:
the data acquisition unit is used for acquiring the data of the standard state of the engagement of the elevator landing door lock hook and the data of the actual state of the engagement of the elevator landing door lock hook in real-time operation;
the data processing module is used for comparing and analyzing the actual state data of the elevator landing door lock latch hook engagement with the standard state data of the elevator landing door lock latch hook engagement;
the data storage and transmission module is used for transmitting and storing data between the data acquisition device and the data processing module;
and the data display module is used for displaying and outputting the related information when the data comparison difference exceeds a set threshold or a set condition.
14. The apparatus for monitoring the engagement of an elevator landing door latch hook according to claim 13, wherein: the data acquisition device is a high-definition camera or a TOF sensor.
15. An elevator system, comprising:
at least one elevator car, the device for monitoring the engagement of the locking hooks of the door locks of the elevator landing according to claim 13 or 14 being installed in an elevator system.
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| CN202011178816.5A CN112225025A (en) | 2020-10-29 | 2020-10-29 | Method and device for monitoring engagement condition of lock hook of elevator landing door lock |
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| CN202011178816.5A CN112225025A (en) | 2020-10-29 | 2020-10-29 | Method and device for monitoring engagement condition of lock hook of elevator landing door lock |
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| CN202011178816.5A Pending CN112225025A (en) | 2020-10-29 | 2020-10-29 | Method and device for monitoring engagement condition of lock hook of elevator landing door lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044691A (en) * | 2021-03-12 | 2021-06-29 | 四川百凡智能科技有限公司 | Elevator detection method and device and elevator |
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