CN110861984B - Monitoring method of elevator centering device and monitoring device of elevator centering device - Google Patents
Monitoring method of elevator centering device and monitoring device of elevator centering device Download PDFInfo
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- CN110861984B CN110861984B CN201810978477.5A CN201810978477A CN110861984B CN 110861984 B CN110861984 B CN 110861984B CN 201810978477 A CN201810978477 A CN 201810978477A CN 110861984 B CN110861984 B CN 110861984B
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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
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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
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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Abstract
The invention discloses a monitoring method of an elevator centering device, which is applied to an elevator control system and comprises the following steps: acquiring current information of an elevator door motor in real time in the process of opening the elevator door; judging whether the current information has mutation or not; under the condition that the current information changes suddenly, obtaining distance information of the elevator door motor when the current information changes suddenly; judging whether the distance information meets a preset requirement or not, and generating a corresponding judgment result; and generating corresponding monitoring information according to the judgment result. The invention also discloses a monitoring device of the elevator centering device. The moving distance of the elevator door motor in the centering process is monitored in real time, so that whether the elevator centering device is abnormal or not is judged, the centering accuracy is improved, the real-time performance of monitoring the elevator centering is improved, and the running safety of the elevator is improved.
Description
Technical Field
The invention relates to the technical field of elevator control, in particular to a monitoring method of an elevator centering device and a monitoring device of the elevator centering device.
Background
An elevator, as a type of in-building transportation means, assists a user in a building to move conveniently between different floors by moving vertically in a hoistway in the building, and in order to protect both an elevator car and the user in the elevator floor, a car door is provided at the elevator car and a landing door is provided at each floor. In the conventional elevator structure, in order to ensure that the car door and landing door of the elevator can simultaneously operate when the elevator stops at any floor, and the landing door of the floor where the elevator does not stop cannot be opened, a transmission structure such as a vane, a centering device and the like is arranged between the car door and the landing door of the elevator.
In the prior art, when the elevator opens the door, the car door guide rail firstly contacts with the upper roller of the landing door and pushes the upper roller to move, so that the landing door is unlocked, then further contacts with the lower roller, and the lower roller is pushed to move and the landing door is pushed to move so as to realize the door opening action of the elevator.
However, in the practical application process, when the elevator vertically ascends and descends, the roller collides with the guide rail due to the shaking of the elevator, so that the safety mechanism of the elevator control system is triggered, the emergency braking of the elevator is caused, the running reliability and the user experience of the elevator are greatly reduced, and the elevator door opening and closing device is a potential safety hazard in the opening and closing process of the elevator.
However, in the prior art, a mechanical centering method is often adopted, technicians manually measure the distance of the guide rail and the diameter of the lower roller, and reserve a sufficient space, but when mechanical parts are worn and have dimensional deviation, centering accuracy is influenced, and great safety threat exists.
Disclosure of Invention
In order to solve the technical problems that in the prior art, an elevator centering method is low in accuracy, and the elevator centering cannot be timely monitored, so that the elevator safety is low, the embodiment of the invention provides a monitoring method of an elevator centering device and a monitoring device of the elevator centering device.
In order to achieve the above object, an embodiment of the present invention provides a monitoring method for an elevator centering device, which is applied to an elevator control system, and the monitoring method includes: acquiring current information of an elevator door motor in real time in the process of opening the elevator door; judging whether the current information has mutation or not; under the condition that the current information changes suddenly, obtaining distance information of the elevator door motor when the current information changes suddenly; judging whether the distance information meets a preset requirement or not, and generating a corresponding judgment result; and generating corresponding monitoring information according to the judgment result.
Preferably, the mutation includes a first mutation and a second mutation, and the determining whether the current information has a mutation includes: obtaining a current average current based on the current information; judging whether a current value with a deviation from the current average current larger than a preset mutation range exists in the current information; under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a first mutation; under the condition that the current information has the first mutation, judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information; and under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a second mutation.
Preferably, the distance information includes first distance information and second distance information, and the obtaining of the distance information of the elevator door motor when the current information changes abruptly includes: acquiring first pulse information of the elevator door motor during the first sudden change; obtaining first distance information based on the first pulse information; acquiring second pulse information of the elevator door motor during the second sudden change; second distance information is obtained based on the second pulse information.
Preferably, the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes: determining a first standard distance and a second standard distance; judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result; and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
Preferably, the generating corresponding monitoring information according to the judgment result includes: judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not; generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value; and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
Correspondingly, the invention also provides a monitoring device of the elevator centering device, which comprises the following components: the elevator door opening device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring current information of an elevator door motor in real time in the elevator door opening process; the judging unit is used for judging whether the current information has mutation or not; the distance unit is used for acquiring the distance information of the elevator door motor when the current information changes suddenly under the condition that the current information changes suddenly; the judgment result generation unit is used for judging whether the distance information meets the preset requirement and generating a corresponding judgment result; and the monitoring information generating unit is used for generating corresponding monitoring information according to the judgment result.
Preferably, the mutation includes a first mutation and a second mutation, and the judging unit includes: a current obtaining module, configured to obtain a current average current based on the current information; the first judgment module is used for judging whether a current value with a deviation larger than a preset mutation range exists in the current information or not; the first determining module is used for determining that the current information has first sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range; the second judgment module is used for judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information or not under the condition that the current information has the first mutation; and the second determining module is used for determining that the current information has second sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range.
Preferably, the distance information includes first distance information and second distance information, and the distance unit includes: the first pulse acquisition module is used for acquiring first pulse information of the elevator door motor during the first sudden change; a first distance obtaining module, configured to obtain first distance information based on the first pulse information; the second pulse acquisition module is used for acquiring second pulse information of the elevator door motor during the second sudden change; and the second distance acquisition module is used for acquiring second distance information based on the second pulse information.
Preferably, the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes: determining a first standard distance and a second standard distance; judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result; and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
Preferably, the generating corresponding monitoring information according to the judgment result includes: judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not; generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value; and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
Through the technical scheme provided by the invention, the invention at least has the following technical effects:
the moving distance of the guide rail in the centering process at every time is obtained according to the real-time current change of the elevator door motor in the centering process, so that whether the centering position of the elevator centering device on the current floor is abnormal in deviation or not is judged, the elevator with abnormal deviation is timely processed, the centering accuracy is greatly improved, the real-time performance of monitoring the elevator centering is improved, the running safety of the elevator is improved, the fault rate of the elevator is reduced, and the user experience is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic view of a prior art elevator centering device provided by an embodiment of the present invention;
fig. 2 is a flowchart of a specific implementation of a monitoring method for an elevator centering device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a smooth curve drawn by an elevator control system according to a current average current in a monitoring method of an elevator centering device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an elevator control system acquiring a distance between a guide rail and a sheave in a monitoring method of an elevator centering device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a monitoring device of an elevator centering device provided by an embodiment of the invention.
Detailed Description
In order to solve the technical problems that in the prior art, an elevator centering method is low in accuracy, and the elevator centering cannot be timely monitored, so that the elevator safety is low, the embodiment of the invention provides a monitoring method of an elevator centering device and a monitoring device of the elevator centering device.
First, referring to fig. 1, in order to ensure that a car door and a landing door can move simultaneously when an elevator is opened or closed without causing a safety accident due to mutual interference between the car door and the landing door during the up-and-down running of the elevator in the current elevator door machine design, at least one guide rail is often arranged on the car door, and at least one pulley is arranged on the landing door, for example, in the embodiment of the invention, two guide rails are arranged on the car door, and a pulley a and a pulley B are arranged on the landing door, wherein the guide rails and the pulleys are in non-overlapping positions in the vertical direction, and during the normal running of the elevator, because the guide rails and the pulleys are in the non-overlapping positions, the guide rails can freely pass through the pulleys without affecting the normal running of the elevator, and during the opening or closing of the elevator, under the drive of the gantry crane, the guide rail horizontally moves towards the pulley, and after the guide rail firstly touches the pulley A, the locking state of the landing door is unlocked by driving the pulley A to move, and the guide rail continuously moves horizontally to touch the pulley B, and the landing door is driven to open by driving the pulley B to move.
Because in actual elevator structure, the distance between guide rail and the pulley is less, consequently in the operation of elevator and use, because the elevator uses ageing or cause the distance between guide rail and the pulley to reduce and then lead to the condition of collision because of the elevator shake, make the elevator emergency stop even, greatly reduced the security of elevator operation and reduced user experience, and in prior art, often only can carry out artifical centering by technical staff to elevator car door and layer door when the elevator trouble, consequently can't satisfy current requirement to elevator quality and elevator security.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The terms "system" and "network" in embodiments of the present invention may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present invention. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified. In addition, it should be understood that the terms first, second, etc. in the description of the embodiments of the invention are used for distinguishing between the descriptions and are not intended to indicate or imply relative importance or order to be construed.
Referring to fig. 2, an embodiment of the present invention provides a monitoring method for an elevator centering device, which is applied to an elevator control system, and the monitoring method includes:
s10) acquiring the current information of the elevator door motor in real time in the elevator door opening process;
s20) judging whether the current information has mutation or not;
s30) under the condition that the current information changes suddenly, obtaining the distance information of the elevator door motor when the current information changes suddenly;
s40) judging whether the distance information meets the preset requirement and generating a corresponding judgment result;
s50) generating corresponding monitoring information according to the judgment result.
In one possible implementation mode, after the elevator runs to a destination floor, the elevator control system controls the elevator door motor to output driving force to drive the car door to open, and the elevator control system acquires current information output by the elevator door motor in real time. When the car door is opened, the car door touches the pulley and drives the pulley to continue to move, namely the quality of an object driven by the elevator door machine is changed, so that the output current is suddenly changed, the elevator control system now obtains the distance information of the elevator door motor when the current information changes abruptly, for example, the current pulse of the car door when the current information changes suddenly is obtained through an encoder, and then the current moving position of the car door is obtained according to the current pulse, so that the distance between the guide rail of the car door and the pulley of the landing door in the current floor is obtained, at which point the elevator control system further compares this distance with the preset distance in the database, therefore, whether the distance meets the preset requirement or not is judged, and the monitoring information of the distance between the guide rail and the pulley of the floor is output, namely the monitoring information of the centering device of the elevator is obtained.
In the embodiment of the invention, whether the position of the centering device of the elevator changes is judged according to the sudden change of the driving current output by the elevator in the door opening or closing process, and the corresponding monitoring information is generated in real time, so that the real-time monitoring of the centering device of each floor of the elevator is realized under the condition of not increasing additional hardware or engineering quantity, and the running safety of the elevator is greatly improved.
In an embodiment of the present invention, the mutating includes a first mutating and a second mutating, and the determining whether the current information has a mutation includes: obtaining a current average current based on the current information; judging whether a current value with a deviation from the current average current larger than a preset mutation range exists in the current information; under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a first mutation; under the condition that the current information has the first mutation, judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information; and under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a second mutation.
Referring to fig. 3, in a possible embodiment, in the process of closing the door of the elevator, the elevator control system controls the elevator door motor to output a stable driving current, and simultaneously, the elevator control system draws a smooth curve according to the monitored current average current, at a certain time, the elevator control system monitors that the current and the current average current have a large deviation, and the deviation of the current and the current average current is greater than a preset sudden change range, so that the elevator control system determines that the current has a first sudden change, and at this time, the elevator control system continues to monitor the current, and monitors that the deviation of another current value and the current average current is greater than the preset sudden change range at a second time after the current has the first sudden change, so that the current is determined to have a second sudden change.
It should be noted that, because design parameters of each elevator are different, and triggering structures for opening or closing the elevator door are also different, a technician may set a corresponding preset abrupt change range according to an actual situation, and the elevator door belongs to technical features that the technician in the field can easily think of, and therefore the elevator door also belongs to the protection scope of the present invention, and will not be described in detail herein.
In the embodiment of the invention, the driving current of the elevator door motor is monitored in real time in the door opening or closing process of the elevator, and the contact point of the guide rail and the pulley is determined by utilizing the sudden change of the current, so that the distance between the guide rail and the pulley is further determined, the monitoring accuracy and the real-time performance of the elevator centering device are greatly improved, a technician does not need to check or overhaul the elevator in the field when the elevator fails, the running safety of the elevator is greatly improved, and the user experience is improved.
In an embodiment of the present invention, the obtaining the distance information of the elevator door motor when the current information changes abruptly includes: acquiring first pulse information of the elevator door motor during the first sudden change; obtaining first distance information based on the first pulse information; acquiring second pulse information of the elevator door motor during the second sudden change; second distance information is obtained based on the second pulse information.
Referring to fig. 4, in a possible embodiment, during the operation of the elevator, the elevator control system monitors the driving current of the elevator door motor in real time, and when the driving current has a first sudden change, the first pulse number output by the elevator door motor at the moment is obtained through the encoder, and according to the first pulse number and the stroke corresponding to each pulse of the encoder, the moving distance La from the driven movement of the car door to the first sudden change of the driving current is obtained, and based on the same principle, when the driving power has a second sudden change, the elevator control system obtains the moving distance Lb from the driven movement of the car door to the second sudden change of the driving current according to the second pulse number of the encoder at the moment, namely the distance La between the guide rail and the pulley a and the distance Lb between the guide rail and the pulley B are obtained at the moment.
In the embodiment of the invention, the change condition of the driving current in the door opening or closing process of the elevator is monitored in real time through the elevator control system, so that the real-time monitoring of the distance between the guide rail and the pulley of each floor is realized under the condition of not adding extra monitoring or control hardware, and compared with the traditional manual centering method or manual inspection method, the method greatly improves the monitoring accuracy and real-time performance, does not influence the normal use of the elevator, improves the user experience and improves the use safety of the elevator.
In this embodiment of the present invention, the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes: determining a first standard distance and a second standard distance; judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result; and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
Further, in this embodiment of the present invention, the generating corresponding monitoring information according to the determination result includes: judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not; generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value; and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
In one possible embodiment, after the elevator is installed and commissioned, the technician obtains the distance Sa between the guide rail and the sheave a and the distance Sb between the guide rail and the sheave B, and uses Sa and Sb as the standard distances between the guide rail and the sheave a and between the guide rail and the sheave B, which should be equal or approximately equal for each floor in the initial state. In the running process of the elevator, after obtaining the distance La between a guide rail of a certain floor and a pulley A and the distance Lb between the guide rail and a pulley B, the elevator control system respectively compares La with Sa and compares Lb with Sb, and obtains the deviation of La with Sa and the deviation of Lb with Sb, and at the moment, if any deviation exceeds a preset deviation value, the elevator control system generates alarm information corresponding to the current floor and feeds La and Lb back to a technician so as to prompt the technician to overhaul or adjust the current floor of the elevator in time; and in the case that the deviation of La and Sa and the deviation of Lb and Sb do not exceed the preset deviation value, only feeding back the values of La and Lb to a technician and recording the values.
In the embodiment of the invention, the centering distance of each floor is automatically monitored and judged in real time, so that once the centering distance of a certain floor is abnormal, a technician is immediately alarmed, corresponding maintenance measures are taken in time, larger safety accidents are avoided, the safety in the use process of the elevator is greatly improved, the elevator stopping times are reduced, and the use experience of a user is improved.
The following describes a monitoring device of an elevator centering device according to an embodiment of the present invention with reference to the accompanying drawings.
Referring to fig. 5, based on the same inventive concept, an embodiment of the present invention provides a monitoring device for an elevator centering device, where the monitoring device includes: the elevator door opening device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring current information of an elevator door motor in real time in the elevator door opening process; the judging unit is used for judging whether the current information has mutation or not; the distance unit is used for acquiring the distance information of the elevator door motor when the current information changes suddenly under the condition that the current information changes suddenly; the judgment result generation unit is used for judging whether the distance information meets the preset requirement and generating a corresponding judgment result; and the monitoring information generating unit is used for generating corresponding monitoring information according to the judgment result.
In an embodiment of the present invention, the mutation includes a first mutation and a second mutation, and the determining unit includes: a current obtaining module, configured to obtain a current average current based on the current information; the first judgment module is used for judging whether a current value with a deviation larger than a preset mutation range exists in the current information or not; the first determining module is used for determining that the current information has first sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range; the second judgment module is used for judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information or not under the condition that the current information has the first mutation; and the second determining module is used for determining that the current information has second sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range.
In an embodiment of the present invention, the distance information includes first distance information and second distance information, and the distance unit includes: the first pulse acquisition module is used for acquiring first pulse information of the elevator door motor during the first sudden change; a first distance obtaining module, configured to obtain first distance information based on the first pulse information; the second pulse acquisition module is used for acquiring second pulse information of the elevator door motor during the second sudden change; and the second distance acquisition module is used for acquiring second distance information based on the second pulse information.
In this embodiment of the present invention, the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes: determining a first standard distance and a second standard distance; judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result; and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
In this embodiment of the present invention, the generating corresponding monitoring information according to the determination result includes: judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not; generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value; and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A monitoring method of an elevator centering device is applied to an elevator control system, and is characterized by comprising the following steps:
acquiring current information of an elevator door motor in real time in the process of opening the elevator door;
judging whether the current information has mutation or not;
under the condition that the current information changes suddenly, obtaining distance information of the elevator door motor when the current information changes suddenly;
judging whether the distance information meets a preset requirement or not, and generating a corresponding judgment result;
and generating corresponding monitoring information according to the judgment result.
2. The monitoring method according to claim 1, wherein the abrupt change includes a first abrupt change and a second abrupt change, and the determining whether the current information has an abrupt change includes:
obtaining a current average current based on the current information;
judging whether a current value with a deviation from the current average current larger than a preset mutation range exists in the current information;
under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a first mutation;
under the condition that the current information has the first mutation, judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information;
and under the condition that the current information has a current value with a deviation from the current average current larger than the preset mutation range, determining that the current information has a second mutation.
3. The monitoring method of claim 2, wherein the distance information includes first distance information and second distance information, and the obtaining the distance information of the elevator door motor when the current information abruptly changes comprises:
acquiring first pulse information of the elevator door motor during the first sudden change;
obtaining first distance information based on the first pulse information;
acquiring second pulse information of the elevator door motor during the second sudden change;
second distance information is obtained based on the second pulse information.
4. The monitoring method according to claim 3, wherein the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes:
determining a first standard distance and a second standard distance;
judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result;
and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
5. The monitoring method according to claim 4, wherein the generating corresponding monitoring information according to the determination result includes:
judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not;
generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value;
and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
6. A monitoring device for an elevator centering device, the monitoring device comprising:
the elevator door opening device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring current information of an elevator door motor in real time in the elevator door opening process;
the judging unit is used for judging whether the current information has mutation or not;
the distance unit is used for acquiring the distance information of the elevator door motor when the current information changes suddenly under the condition that the current information changes suddenly;
the judgment result generation unit is used for judging whether the distance information meets the preset requirement and generating a corresponding judgment result;
and the monitoring information generating unit is used for generating corresponding monitoring information according to the judgment result.
7. The monitoring device according to claim 6, wherein the abrupt change includes a first abrupt change and a second abrupt change, and the determining unit includes:
a current obtaining module, configured to obtain a current average current based on the current information;
the first judgment module is used for judging whether a current value with a deviation larger than a preset mutation range exists in the current information or not;
the first determining module is used for determining that the current information has first sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range;
the second judgment module is used for judging whether a current value with a deviation from the current average current larger than the preset mutation range exists in the current information or not under the condition that the current information has the first mutation;
and the second determining module is used for determining that the current information has second sudden change under the condition that the current information has a current value of which the deviation from the current average current is greater than the preset sudden change range.
8. The monitoring device of claim 7, wherein the distance information comprises first distance information and second distance information, and wherein the distance unit comprises:
the first pulse acquisition module is used for acquiring first pulse information of the elevator door motor during the first sudden change;
a first distance obtaining module, configured to obtain first distance information based on the first pulse information;
the second pulse acquisition module is used for acquiring second pulse information of the elevator door motor during the second sudden change;
and the second distance acquisition module is used for acquiring second distance information based on the second pulse information.
9. The monitoring device according to claim 8, wherein the determining whether the distance information meets a preset requirement and generating a corresponding determination result includes:
determining a first standard distance and a second standard distance;
judging whether the deviation of the first distance information and the first standard distance exceeds a preset deviation value or not, and obtaining a first judgment result;
and judging whether the deviation of the second distance information and the second standard distance exceeds the preset deviation value or not, and obtaining a second judgment result.
10. The monitoring device according to claim 9, wherein the generating corresponding monitoring information according to the determination result includes:
judging whether a judgment result that the deviation exceeds the preset deviation value exists in the first judgment result and the second judgment result or not;
generating corresponding alarm information and feeding back the first distance information and the second distance information under the condition that the first judgment result and the second judgment result have judgment results that the deviation exceeds the preset deviation value;
and feeding back the first distance information and the second distance information when a judgment result that the deviation exceeds the preset deviation value does not exist in the first judgment result and the second judgment result.
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