CN112265889A - Detection method and detection device for elevator steel wire rope - Google Patents
Detection method and detection device for elevator steel wire rope Download PDFInfo
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- CN112265889A CN112265889A CN202011159074.1A CN202011159074A CN112265889A CN 112265889 A CN112265889 A CN 112265889A CN 202011159074 A CN202011159074 A CN 202011159074A CN 112265889 A CN112265889 A CN 112265889A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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Abstract
The invention discloses a detection method of an elevator steel wire rope, wherein the elevator comprises a hoistway, and the detection method comprises the following steps: acquiring an initial position of a rigid body directly or indirectly connected with a steel wire rope, wherein the rigid body moves in the well; acquiring a preset time period; acquiring the detection position of the rigid body according to the preset time period; and generating a detection result of the steel wire rope based on the initial position and the detection position. The invention also discloses a detection device of the elevator steel wire rope. On the basis of the existing elevator control system, the existing elevator structure is utilized, the rigid body directly or indirectly connected with the steel wire rope is subjected to height detection, and the length information of the steel wire rope can be quickly and timely acquired under the condition that no influence is caused on the steel wire rope, so that the problem that the steel wire rope is stretched to cause inaccurate leveling is effectively avoided, the user experience is improved, the safe use of the steel wire rope is further ensured, and the safety risk caused by the stretching and thinning of the steel wire rope is reduced.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to a detection method and a detection device for an elevator steel wire rope.
Background
In the field of modern buildings, it is a normal state to arrange elevators in buildings, and elevators are commonly used in buildings with a certain height.
The lifting control of the traditional elevator is realized by applying acting force on a steel wire rope through a traction machine so as to drive an elevator car connected with the steel wire rope to move up and down. The steel wire rope is a flexible body with a complex space structure, the elevator steel wire rope can slightly extend due to long-time stretching, bending, extruding and other acting forces, and the elevator car performs leveling operation according to an absolute position, so that after the steel wire rope deforms and extends, the elevator car cannot accurately perform leveling operation, troubles are caused for users, and user experience is reduced. On the other hand, the deformation of the steel wire rope can also cause the dragging phenomenon of the compensating chain, and the service life of the compensating chain is reduced.
Further, as the steel wire rope is stretched continuously, the cross section of the steel wire rope is also reduced continuously, and on the basis of continuously reducing the service life of the steel wire rope, great safety threat is caused to the safety use of a user, so that the length of the steel wire rope is detected quickly and timely, and the elevator safety use is very important, but no technical scheme for quickly and timely detecting the steel wire rope of the elevator exists at present.
Disclosure of Invention
In order to solve the technical problems that the length of a steel wire rope cannot be detected quickly and timely to cause low user experience and high use safety risk of an elevator in the prior art, the embodiment of the invention provides a detection method of the steel wire rope of the elevator and a detection device of the steel wire rope of the elevator.
In order to achieve the above object, an embodiment of the present invention provides a method for detecting a steel wire rope of an elevator, where the elevator includes a hoistway, and the method includes: acquiring an initial position of a rigid body directly or indirectly connected with a steel wire rope, wherein the rigid body moves in the well; acquiring a preset time period; acquiring the detection position of the rigid body according to the preset time period; and generating a detection result of the steel wire rope based on the initial position and the detection position.
Preferably, the elevator comprises an elevator car, and the acquiring of the initial position of the rigid body directly or indirectly connected to the wire rope comprises: under the condition of the initial operation of the elevator, acquiring the rigid body type of the rigid body; under the condition that the rigid body is a bendable rigid body, acquiring the height of a first lowest point of the bendable rigid body; under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to a preset initial position, and obtaining a first hoistway height of the non-bendable rigid body; taking the first nadir height or the first hoistway height as the initial position.
Preferably, the acquiring the detection position of the rigid body includes: under the condition that the rigid body is a bendable rigid body, acquiring the height of a second lowest point of the bendable rigid body; under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to the preset initial position, and obtaining a second hoistway height of the non-bendable rigid body; using the second nadir height or the second hoistway height as the detection location.
Preferably, the generating a detection result of the steel wire rope based on the initial position and the detection position includes: obtaining a difference between the initial position and the inspection position; judging whether the difference value is larger than a preset difference value threshold value or not; and generating corresponding alarm information under the condition that the difference is larger than a preset difference threshold, and feeding back the alarm information as the inspection result.
Preferably, the detection method further comprises: judging whether a re-detection instruction is acquired; acquiring a correction detection position of the rigid body under the condition that the re-detection instruction is acquired; and generating a corresponding correction detection result based on the initial position and the correction detection position.
Correspondingly, the embodiment of the invention also provides a detection device of the elevator steel wire rope, which comprises the following components: the first position acquisition module is used for acquiring the initial position of a rigid body directly or indirectly connected with the steel wire rope, wherein the rigid body moves in the shaft; the period acquisition module is used for acquiring a preset time period; the second position acquisition module is used for acquiring the detection position of the rigid body according to the preset time period; and the detection module is used for generating a detection result of the steel wire rope based on the initial position and the detection position.
Preferably, the first position detection module includes: the type acquisition unit is used for acquiring the rigid body type of the rigid body under the condition of the initial running of the elevator; a first initial position acquiring unit configured to acquire a first lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body; the second initial position obtaining unit is used for controlling the elevator car to move to a preset initial position under the condition that the rigid body is a non-bendable rigid body, and obtaining the first hoistway height of the non-bendable rigid body; a first determination unit for taking the first lowest point height or the first hoistway height as the initial position.
Preferably, the second position acquisition module includes: a first detection position acquisition unit configured to acquire a second lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body; the second detection position acquisition unit is used for controlling the elevator car to move to the preset initial position under the condition that the rigid body is a non-bendable rigid body, and acquiring the height of a second shaft of the non-bendable rigid body; a second determination unit configured to use the second lowest point height or the second hoistway height as the detection position.
Preferably, the detection module comprises: a difference acquisition unit configured to acquire a difference between the initial position and the inspection position; the first judgment unit is used for judging whether the difference value is larger than a preset difference value threshold value or not; and the detection unit is used for generating corresponding alarm information under the condition that the difference value is greater than a preset difference value threshold value, and feeding back the alarm information as the check result.
Preferably, the detection device further comprises a correction module, the correction module comprising: the second judgment unit is used for judging whether a re-detection instruction is acquired or not; a corrected position acquisition unit configured to acquire a corrected detection position of the rigid body when the re-detection instruction is acquired; a correction unit for generating a corresponding correction detection result based on the initial position and the correction detection position.
Through the technical scheme provided by the invention, the invention at least has the following technical effects:
through on current elevator control system's basis, utilize current elevator structure, carry out the height detection to the rigid body of being connected with wire rope directly or indirectly, under the condition that does not cause any influence to wire rope, can acquire wire rope's length information fast, in time to effectively avoided leading to the unsafe problem of flat bed because of the wire rope is tensile, improved user experience, further guaranteed wire rope's safe handling simultaneously, reduced the safe risk that leads to because of the wire rope is tensile thinly.
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 flowchart of a specific implementation of a method for detecting an elevator steel wire rope according to an embodiment of the present invention;
fig. 2 is a schematic view of an elevator system provided by an embodiment of the present invention;
fig. 3 is a flowchart illustrating a specific implementation of a detection result of a steel wire rope generated in a method for detecting an elevator steel wire rope according to an embodiment of the present invention;
fig. 4 is a flowchart of a specific implementation of re-detecting a steel wire rope in a method for detecting a steel wire rope of an elevator according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a detection device for an elevator rope according to an embodiment of the present invention.
Detailed Description
In order to solve the technical problems that the length of a steel wire rope cannot be detected quickly and timely to cause low user experience and high use safety risk of an elevator in the prior art, the embodiment of the invention provides a detection method of the steel wire rope of the elevator and a detection device of the steel wire rope of the elevator.
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. 1, an embodiment of the present invention provides a method for detecting a steel wire rope of an elevator, where the elevator includes a hoistway, and the method includes:
s10) obtaining the initial position of a rigid body directly or indirectly connected with the steel wire rope, wherein the rigid body moves in the well;
s20) acquiring a preset time period;
s30) obtaining the detection position of the rigid body according to the preset time period;
s40) generating a detection result of the steel wire rope based on the initial position and the detection position.
Further, in an embodiment of the present invention, the elevator includes an elevator car, and the acquiring an initial position of the rigid body directly or indirectly connected to the wire rope includes: under the condition of the initial operation of the elevator, acquiring the rigid body type of the rigid body; under the condition that the rigid body is a bendable rigid body, acquiring the height of a first lowest point of the bendable rigid body; under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to a preset initial position, and obtaining a first hoistway height of the non-bendable rigid body; taking the first nadir height or the first hoistway height as the initial position.
In order to realize simple, quick and timely detection of the elevator steel wire rope and simultaneously not cause any influence on the normal use of the elevator steel wire rope in the detection process, the length change of the elevator steel wire rope in the use process is obtained by detecting the position change of a rigid body directly or indirectly connected with the steel wire rope.
Referring to fig. 2, an elevator system according to an embodiment of the present invention is provided. Before the steel wire rope is detected, the initial position of a rigid body directly or indirectly connected with the steel wire rope is obtained. For example, in the embodiment of the invention, the elevator is installed in a shaft of a building, the elevator car moves up and down along the shaft wall to stop at different floor positions, the elevator car is connected with a counterweight through a steel wire rope, and a compensation chain is correspondingly arranged between the elevator car and the counterweight so as to further compensate weight deviation caused by the steel wire rope in an elevator system. When the elevator is installed and operated for the first time, technicians control the elevator to operate in the hoistway, and measure the initial position of the rigid body in the operation process. For example, in one possible embodiment, the rigid body is a non-bendable rigid body, for example, the non-bendable rigid body may be a counterweight, and in the process of performing the measurement, the technician first moves the elevator car to a preset initial position through the elevator control system, for example, at the preset initial position, which is a flat position of a floor of the current building, at which time the technician measures a position of the counterweight in the hoistway at the time, so as to obtain a height of the counterweight in the current hoistway, that is, obtain an initial position of the counterweight.
After obtaining the initial position of the rigid body, the elevator control system further obtains a preset time period, for example, the preset time period is input into the elevator control system by a technician at the time of elevator installation, and the timer is started after the elevator is initially operated. When the elevator control system monitors that the current time reaches the preset time period, for example, the preset time period is one month, the current detection position of the rigid body is further obtained, for example, in the embodiment of the present invention, the elevator may be controlled to run to the flat position of the first floor, and then the height of the counterweight in the hoistway at that time is obtained, that is, the detection position of the rigid body is obtained. Further, the elevator control system may generate a corresponding detection result based on the initial position and the detected position.
It should be noted that the rigid bodies include, but are not limited to, rigid objects such as a counterweight, a compensation chain, and an elevator car in an elevator shaft, which should be easily conceivable by those skilled in the art based on the embodiments of the present invention, and redundant description is omitted here.
In the embodiment of the invention, the rigid body directly or indirectly connected with the steel wire rope is subjected to position detection, so that whether the current length of the elevator steel wire rope is changed or not is directly or indirectly obtained, meanwhile, no influence is caused on the normal use of the steel wire rope, the convenience of the length detection of the steel wire rope is effectively improved, the length of the steel wire rope can be quickly and timely detected, the condition that the elevator car is not accurately leveled due to the deformation of the steel wire rope is effectively avoided, the user experience is improved, the safety threat caused by the thinning of the steel wire rope is avoided, and the use safety of the elevator is improved.
Furthermore, the implementation process of the embodiment of the invention is realized based on the original structure of the elevator system, so that the steel wire rope is quickly and timely detected, the implementation cost is not increased, and the commercial popularization of the invention is facilitated.
In an embodiment of the present invention, the acquiring a detection position of the rigid body includes: under the condition that the rigid body is a bendable rigid body, acquiring the height of a second lowest point of the bendable rigid body; under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to the preset initial position, and obtaining a second hoistway height of the non-bendable rigid body; using the second nadir height or the second hoistway height as the detection location.
Further, referring to fig. 3, in an embodiment of the present invention, the generating a detection result of the steel wire rope based on the initial position and the detection position includes:
s401) obtaining a difference value between the initial position and the checking position;
s402) judging whether the difference value is larger than a preset difference value threshold value;
s403) generating corresponding alarm information under the condition that the difference is larger than a preset difference threshold, and feeding back the alarm information as the inspection result.
In one possible embodiment, the rigid bendable rigid body is a compensation chain. In the practical application process, after the elevator is installed, a technician firstly detects the first lowest point height of the lowest point of the compensation chain in the hoistway, namely obtains the initial position of the compensation chain. Then, after a period of operation, for example, after 2 months of operation, a technician may further measure the height of the second low point of the compensation chain, and then input the height of the second low point into the elevator control system, that is, at this time, the elevator control system acquires the detection position of the compensation chain, and based on the difference between the initial position and the detection position further acquired, thereby acquiring the deformation amount of the stretched side length of the steel wire rope, at this time, the elevator control system further determines whether the difference is greater than a preset difference threshold, for example, in the embodiment of the present invention, the elevator control system finds that the difference is greater than the preset difference threshold, so that a corresponding alarm message is immediately generated, and the alarm message is fed back to the relevant technician as a detection result.
Further, in order to reduce the workload of technicians and avoid waste of manpower resources, in the embodiment of the present invention, the height of the first location and the height of the second location may also be automatically obtained by installing a distance sensor at the bottom of the elevator shaft, and the elevator control system generates a corresponding detection result according to the automatically obtained initial position and the detection position.
In the embodiment of the invention, the position of the rigid body in the elevator shaft is automatically detected, so that the length change of the steel wire rope can be monitored in real time, and a technician does not need to frequently check or measure the steel wire rope on site, thereby greatly reducing the workload of the technician, improving the control accuracy in the elevator leveling control process, effectively ensuring the use safety of the steel wire rope and improving the use safety of the elevator by timely feeding back the abnormity of the steel wire rope.
Referring to fig. 4, in the embodiment of the present invention, the detecting method further includes:
s501) judging whether a re-detection instruction is acquired;
s502) acquiring a correction detection position of the rigid body under the condition of acquiring the re-detection instruction;
s503) generates a corresponding corrected detection result based on the initial position and the corrected detection position.
In a possible implementation, after obtaining the above detection result, the technician determines that the length of the current steel wire rope is stretched, and the current steel wire rope is dragged, which reduces the service life of the compensation chain, and has potential safety threats, for example, an excessively low compensation chain may hang on an object below the hoistway, such as a buffer, during the operation of the elevator, so that the technician immediately performs a rope cutting operation on the steel wire rope to reduce the length of the steel wire rope, and after the rope cutting operation, sends a corresponding re-detection command to the elevator control system. At this time, the elevator control system automatically detects the length of the steel wire rope again, obtains the corrected detection position of the rigid body, and obtains a corresponding corrected detection result according to the corrected detection position and the initial position of the rigid body.
In the embodiment of the invention, the length of the steel wire rope is quickly and timely detected, so that technicians are better guided to adjust the length of the steel wire rope, the control accuracy of the elevator in the floor leveling process is improved, and the use safety of the elevator is improved.
The following describes a detection device for an elevator wire rope 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 device for detecting an elevator steel wire rope, where the device includes: the first position acquisition module is used for acquiring the initial position of a rigid body directly or indirectly connected with the steel wire rope, wherein the rigid body moves in the shaft; the period acquisition module is used for acquiring a preset time period; the second position acquisition module is used for acquiring the detection position of the rigid body according to the preset time period; and the detection module is used for generating a detection result of the steel wire rope based on the initial position and the detection position.
In an embodiment of the present invention, the first position detecting module includes: the type acquisition unit is used for acquiring the rigid body type of the rigid body under the condition of the initial running of the elevator; a first initial position acquiring unit configured to acquire a first lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body; the second initial position obtaining unit is used for controlling the elevator car to move to a preset initial position under the condition that the rigid body is a non-bendable rigid body, and obtaining the first hoistway height of the non-bendable rigid body; a first determination unit for taking the first lowest point height or the first hoistway height as the initial position.
In an embodiment of the present invention, the second position obtaining module includes: a first detection position acquisition unit configured to acquire a second lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body; the second detection position acquisition unit is used for controlling the elevator car to move to the preset initial position under the condition that the rigid body is a non-bendable rigid body, and acquiring the height of a second shaft of the non-bendable rigid body; a second determination unit configured to use the second lowest point height or the second hoistway height as the detection position.
In an embodiment of the present invention, the detection module includes: a difference acquisition unit configured to acquire a difference between the initial position and the inspection position; the first judgment unit is used for judging whether the difference value is larger than a preset difference value threshold value or not; and the detection unit is used for generating corresponding alarm information under the condition that the difference value is greater than a preset difference value threshold value, and feeding back the alarm information as the check result.
In an embodiment of the present invention, the detection apparatus further includes a correction module, and the correction module includes: the second judgment unit is used for judging whether a re-detection instruction is acquired or not; a corrected position acquisition unit configured to acquire a corrected detection position of the rigid body when the re-detection instruction is acquired; a correction unit for generating a corresponding correction detection result based on the initial position and the correction detection position.
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 detection method of an elevator steel wire rope, wherein the elevator comprises a hoistway, and the detection method comprises the following steps:
acquiring an initial position of a rigid body directly or indirectly connected with a steel wire rope, wherein the rigid body moves in the well;
acquiring a preset time period;
acquiring the detection position of the rigid body according to the preset time period;
and generating a detection result of the steel wire rope based on the initial position and the detection position.
2. The detection method according to claim 1, wherein the elevator comprises an elevator car, and wherein the obtaining of the initial position of the rigid body directly or indirectly connected to the wire rope comprises:
under the condition of the initial operation of the elevator, acquiring the rigid body type of the rigid body;
under the condition that the rigid body is a bendable rigid body, acquiring the height of a first lowest point of the bendable rigid body;
under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to a preset initial position, and obtaining a first hoistway height of the non-bendable rigid body;
taking the first nadir height or the first hoistway height as the initial position.
3. The detection method according to claim 2, wherein the acquiring of the detected position of the rigid body includes:
under the condition that the rigid body is a bendable rigid body, acquiring the height of a second lowest point of the bendable rigid body;
under the condition that the rigid body is a non-bendable rigid body, controlling the elevator car to move to the preset initial position, and obtaining a second hoistway height of the non-bendable rigid body;
using the second nadir height or the second hoistway height as the detection location.
4. The method according to claim 1, wherein the generating a detection result of the wire rope based on the initial position and the detection position comprises:
obtaining a difference between the initial position and the inspection position;
judging whether the difference value is larger than a preset difference value threshold value or not;
and generating corresponding alarm information under the condition that the difference is larger than a preset difference threshold, and feeding back the alarm information as the inspection result.
5. The detection method according to any one of claims 1-4, further comprising:
judging whether a re-detection instruction is acquired;
acquiring a correction detection position of the rigid body under the condition that the re-detection instruction is acquired;
and generating a corresponding correction detection result based on the initial position and the correction detection position.
6. A detection device of an elevator wire rope, the elevator comprising a hoistway, the detection device comprising:
the first position acquisition module is used for acquiring the initial position of a rigid body directly or indirectly connected with the steel wire rope, wherein the rigid body moves in the shaft;
the period acquisition module is used for acquiring a preset time period;
the second position acquisition module is used for acquiring the detection position of the rigid body according to the preset time period;
and the detection module is used for generating a detection result of the steel wire rope based on the initial position and the detection position.
7. The detection device of claim 6, wherein the first position detection module comprises:
the type acquisition unit is used for acquiring the rigid body type of the rigid body under the condition of the initial running of the elevator;
a first initial position acquiring unit configured to acquire a first lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body;
the second initial position obtaining unit is used for controlling the elevator car to move to a preset initial position under the condition that the rigid body is a non-bendable rigid body, and obtaining the first hoistway height of the non-bendable rigid body;
a first determination unit for taking the first lowest point height or the first hoistway height as the initial position.
8. The detection device according to claim 7, wherein the second position acquisition module comprises:
a first detection position acquisition unit configured to acquire a second lowest point height of a bendable rigid body in a case where the rigid body is the bendable rigid body;
the second detection position acquisition unit is used for controlling the elevator car to move to the preset initial position under the condition that the rigid body is a non-bendable rigid body, and acquiring the height of a second shaft of the non-bendable rigid body;
a second determination unit configured to use the second lowest point height or the second hoistway height as the detection position.
9. The detection device of claim 8, wherein the detection module comprises:
a difference acquisition unit configured to acquire a difference between the initial position and the inspection position;
the first judgment unit is used for judging whether the difference value is larger than a preset difference value threshold value or not;
and the detection unit is used for generating corresponding alarm information under the condition that the difference value is greater than a preset difference value threshold value, and feeding back the alarm information as the check result.
10. The detection apparatus according to any one of claims 6-9, further comprising a correction module, the correction module comprising:
the second judgment unit is used for judging whether a re-detection instruction is acquired or not;
a corrected position acquisition unit configured to acquire a corrected detection position of the rigid body when the re-detection instruction is acquired;
a correction unit for generating a corresponding correction detection result based on the initial position and the correction detection position.
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| JP2008280101A (en) * | 2007-05-08 | 2008-11-20 | Mitsubishi Electric Building Techno Service Co Ltd | Device and method of managing and measuring clearance between elevator counterweight and governor rope stretching sheave |
| CN106660741A (en) * | 2014-07-03 | 2017-05-10 | 三菱电机株式会社 | Rope deterioration elongation diagnosis device for elevator, rope deterioration elongation diagnosis method for elevator, and projecting member for rope deterioration elongation diagnosis for elevator |
| CN106927327A (en) * | 2017-03-27 | 2017-07-07 | 无锡英威腾电梯控制技术有限公司 | A kind of elevator safety detection method and device |
| CN108328453A (en) * | 2018-02-27 | 2018-07-27 | 苏州江南嘉捷电梯有限公司 | A kind of counterweight system for elevator |
| US20190337758A1 (en) * | 2018-05-02 | 2019-11-07 | Otis Elevator Company | Elevator alert system |
| CN110240044A (en) * | 2019-05-24 | 2019-09-17 | 苏州汇川技术有限公司 | Traction steel-cable extends amount detection systems, method and elevator |
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Application publication date: 20210126 |