CN114593686A - Device and method for monitoring deformation of hoistway wall of elevator - Google Patents
Device and method for monitoring deformation of hoistway wall of elevator Download PDFInfo
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- CN114593686A CN114593686A CN202210271588.9A CN202210271588A CN114593686A CN 114593686 A CN114593686 A CN 114593686A CN 202210271588 A CN202210271588 A CN 202210271588A CN 114593686 A CN114593686 A CN 114593686A
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- laser
- elevator
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- guide rail
- wall
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a device and a method for monitoring deformation of a hoistway wall of an elevator, wherein the device comprises the following steps: the optical fiber sensor is embedded in concrete around the wall of the elevator shaft and used for monitoring the deformation condition of the elevator shaft; the laser transmitter and the laser receiver are respectively arranged at two ends of the elevator guide rail; the laser limiting plate is fixed on one side of the elevator guide rail and positioned between the laser transmitter and the laser receiver, and the deformation state of the elevator guide rail is monitored by judging whether the laser transmitted by the laser transmitter reaches the laser receiver through the laser limiting plate; the camera and the lighting equipment are used for acquiring information of a deformation area of the elevator guide rail; and the control system is used for controlling the elevator car to move to the deformation area, controlling the camera and the lighting equipment to acquire images of the deformation area, and transmitting the deformation information of the elevator guide rail to workers. The invention can comprehensively monitor the deformation of the elevator shaft wall, effectively reduce the manual labor and improve the riding comfort and safety guarantee of elevator passengers.
Description
Technical Field
The invention belongs to the technical field of elevator shaft wall deformation monitoring, and particularly relates to a shaft wall deformation monitoring device and method for an elevator.
Background
The elevator shaft is sometimes deformed by factors such as its structural design, use of materials, and changes in the external environment, among which,
if the elevator well deflection is great, will influence the rail brackets who fixes on the well wall and stabilize or the guide rail straightness accuracy, any bending and the distortion of any point on the guide rail all can give the car a side force, influence the linear motion about the car, make the car have and rock the sense, along with the elevator speed improves, the car has the vibration sense to influence the comfort level. Cause fixing bolt to drop when serious and bring the hidden danger to the safety of car, current elevator safety inspection technique mainly focuses on detection such as elevator guide rail, elevator car, cable safety, because the wall of a well warp is a long-term process, and elevator well overlength, and the space is very narrow and small to be unfavorable for manual detection between car and well wall.
Therefore, it is necessary to design a device and a method for monitoring deformation of a hoistway wall of an elevator to solve the above problems.
Disclosure of Invention
Based on the defects of the prior art, the technical problem solved by the invention is to provide the device and the method for monitoring the deformation of the hoistway wall of the elevator, which are simple and easy to realize, have low cost, are comprehensive in monitoring the deformation of the hoistway wall of the elevator, can effectively reduce manual labor, and improve the riding comfort and safety guarantee of elevator passengers.
In order to solve the technical problems, the invention is realized by the following technical scheme: the invention provides a shaft wall deformation monitoring device of an elevator, comprising:
the optical fiber sensor is embedded in concrete around the wall of the elevator shaft and used for monitoring the deformation condition of the elevator shaft;
the laser transmitter and the laser receiver are respectively arranged at two ends of an elevator guide rail fixed on the wall of the elevator shaft;
the laser limiting plate is fixed on one side of the elevator guide rail and positioned between the laser transmitter and the laser receiver, and the deformation state of the elevator guide rail is monitored by judging whether the laser transmitted by the laser transmitter reaches the laser receiver through the laser limiting plate;
the camera and the lighting equipment are fixed on the outer side of the elevator car and used for acquiring information of a deformation area of the elevator guide rail;
and the control system is connected with the optical fiber sensor, the laser transmitter, the laser receiver, the camera and the lighting equipment and used for controlling the elevator car to move to the deformation area, controlling the camera and the lighting equipment to acquire images of the deformation area and simultaneously transmitting deformation information of the elevator guide rail on the wall of the elevator shaft to workers.
Furthermore, the laser limiting plate is provided with a through hole for laser to pass through.
The deformation conditions of the elevator shaft wall and an elevator guide rail are monitored by matching an optical fiber displacement sensor with a laser transmitter, wherein the optical fiber displacement sensor is embedded in the elevator shaft wall in a dispersing manner, and whether the elevator shaft wall is subjected to structural deformation such as inclination or not is judged by analyzing input and output signals of an optical fiber; laser that laser emitter transmitted is received by laser receiver after successively passing through a plurality of laser limiting plates of installing on the elevator guide rail, when laser receiver did not receive laser signal, it shows that elevator well wall local area takes place deformation damage such as concrete inflation, fracture, lead to elevator guide rail local straightness accuracy to receive the influence signal and be blocked by the barrier, laser emitter calculates the relative laser emitter's of deformation region distance according to signal reflection time, when the elevator moved to this position, gather this regional well wall local situation through the camera, and inform the maintainer with information and investigate.
The invention also provides a method for monitoring the deformation of the hoistway wall of the elevator, which comprises the following steps:
s1, the optical fiber sensors are embedded in concrete around the elevator shaft wall, when the elevator shaft is inclined or the bearing change causes the optical fiber sensors embedded around the elevator shaft to bend, the control system analyzes output signals of the optical fiber sensors to know whether the optical fibers bend or not, and therefore whether the elevator shaft wall deforms or not is judged;
s2, fixing the laser transmitter and the laser receiver on the wall of the elevator shaft and at two ends of the elevator guide rail, wherein when the monitoring equipment starts to work, the laser transmitted by the laser transmitter is received by the laser receiver after passing through the laser limiting plate, which shows that the straightness of the elevator guide rail is good, and the elevator shaft wall attached to the elevator guide rail normally has no local deformation problem;
s3, if the local area of the elevator shaft wall deforms, the elevator guide rail attached to the elevator shaft wall deforms, so that the relative original position of the laser limiting plate fixed on the elevator guide rail is changed, and the laser signal emitted by the laser emitter cannot penetrate through the through hole in the laser limiting plate to reach the laser receiver and is blocked by the laser limiting plate;
s4, the control system calculates the distance from the laser limiting plate to the laser emitter according to the reflection signal of the laser on the laser limiting plate, the control system controls the elevator car to move to a deformation area, controls the camera and the lighting equipment which are fixed on the outer side of the elevator car to collect images of the deformation area, transmits the deformation information of the elevator guide rail on the wall of the elevator shaft to workers, and the workers analyze the information collected by the camera after receiving the information and detect the fault area to check the deformation of the wall of the elevator shaft.
Therefore, the device and the method for monitoring the deformation of the hoistway wall of the elevator have the following beneficial effects:
the method comprises the steps that firstly, the deformation state of the wall of an elevator shaft is monitored in real time by using an optical fiber sensor and a laser transmitter, when the elevator shaft deforms to enable optical fibers embedded in the wall of the elevator shaft to bend and deform, a control system judges the deformation state of the wall of the elevator shaft according to the signal change of the optical fiber sensor; the laser emitter monitors the straightness of the elevator guide rail, when the elevator shaft wall is locally deformed to influence the straightness of the elevator guide rail, laser cannot irradiate on a laser limiting plate through a laser limiting hole, the control system controls a camera on the elevator car to acquire images of the guide rail deformation area and inform workers of troubleshooting, and the monitoring method is simple, easy to achieve, low in cost, capable of effectively reducing manual labor and improving the riding comfort level and safety guarantee of elevator passengers.
The elevator shaft deformation state real-time monitoring method is simple and easy to achieve through the optical fiber sensor and the laser sensor, the monitoring equipment is low in cost, stable and reliable, the optical fiber sensor monitors the whole deformation state of the elevator shaft, the laser sensor monitors the deformation state of the elevator guide rail fixed on the wall of the elevator shaft, the camera collects local fault area information in the shaft wall, the deformation monitoring of the elevator shaft wall is comprehensive, the elevator shaft wall is short in response time and long in service life from the whole to the local part, higher safety guarantee can be provided for the elevator, and the elevator shaft deformation state real-time monitoring method is beneficial to the safety of elevator passengers.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments, together with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic cross-sectional view of an installation position of a deformation monitoring device of a hoistway wall of an elevator of the present invention;
FIG. 2 is a schematic view of the mounting position of the laser limiting plate of the present invention;
FIG. 3 is a schematic diagram of the effect of elevator guide rail deformation on a laser transmitter signal;
FIG. 4 is a flow chart of the operation of the present invention;
fig. 5 is a control program block diagram of the present invention.
In the figure, 1-optical fiber sensor; 2-elevator guide rails; 3-an elevator car; 4-laser limiting plate; 5-a laser emitter; 6-a laser receiver; 7-a deformation guide rail; 8-a camera; 9-lighting device.
Detailed Description
Other aspects, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which form a part of this specification, and which illustrate, by way of example, the principles of the invention. In the referenced drawings, the same or similar components in different drawings are denoted by the same reference numerals.
As shown in fig. 1 to 5, the optical fiber sensor 1 of the hoistway wall deformation monitoring apparatus of an elevator according to the present invention is embedded in concrete around a hoistway wall, and when the optical fiber sensor 1 embedded around the elevator hoistway is bent due to inclination of the elevator hoistway or a change in load, a propagation path of light at the optical fiber sensor 1 is changed due to the bending of the optical fiber, and a control system (computer) analyzes an output signal of the optical fiber sensor 1 to determine whether the optical fiber is bent, thereby determining whether the hoistway wall is deformed.
A laser transmitter 5 is fixed at one end of an elevator guide rail 2, a laser receiver 6 is fixed at the other end of the elevator guide rail 2, a laser limiting plate 4 is fixed at one side of the elevator guide rail 2 and is positioned between the laser transmitter 5 and the laser receiver 6, a camera 8 and a lighting device 9 are fixed at the outer side of an elevator car 3, and an optical fiber sensor 1 and the laser transmitter 5 transmit data to a control system through a wire. The elevator guide rail 2 is fixed on the wall of the elevator shaft and used for limiting the position of the elevator car 3 in the elevator shaft to play a guiding role, the laser limiting plate 4 is fixed with the elevator guide rail 2, and the laser limiting plate 4 is provided with a through hole with a certain diameter and used for allowing laser to penetrate through the through hole.
As shown in fig. 4 and 5, the method for monitoring deformation of a hoistway wall of an elevator according to the present invention comprises the steps of:
As shown in fig. 3, if the local area of the elevator shaft wall has deformation problems such as swelling and cracking, the elevator guide rail 2 attached to the elevator shaft wall will deform and become a deformed guide rail 7, so that the laser position-limiting plate 4 fixed on the elevator guide rail 2 also changes relative to the original position, the laser signal emitted by the laser emitter 5 can not pass through the through hole of the laser position-limiting plate 4 to reach the laser receiver 6 and is blocked by the laser position-limiting plate 4, at this time, the distance from the laser position-limiting plate 4 to the laser emitter 5 is calculated according to the reflection signal of the laser irradiated on the laser position-limiting plate 4 by the control system, the control system controls the elevator car 3 to move to the deformed area, and controls the camera 8 and the lighting device 9 to perform image acquisition on the deformed area, and simultaneously transmits the deformation information of the elevator guide rail 2 on the elevator shaft wall to the worker, the staff receives the information and then analyzes the information collected by the camera 8, and detects the fault area to check the deformation of the wall of the elevator shaft.
Further, the specific quantity of laser limiting plates 4, laser transmitters 5 and laser receivers 6 is flexibly selected according to the vertical height of the elevator shaft, and if the height of the elevator shaft is large, the elevator shaft is monitored in a segmented mode according to the measuring range of the laser transmitters. The camera 8 collects image signals of the fault area and then stores the collected information to wait for manual analysis and investigation of maintenance personnel.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (3)
1. A hoistway wall deformation monitoring apparatus of an elevator, comprising:
the optical fiber sensor is embedded in concrete around the wall of the elevator shaft and used for monitoring the deformation condition of the elevator shaft;
the laser transmitter and the laser receiver are respectively arranged at two ends of an elevator guide rail fixed on the wall of the elevator shaft;
the laser limiting plate is fixed on one side of the elevator guide rail and positioned between the laser transmitter and the laser receiver, and the deformation state of the elevator guide rail is monitored by judging whether the laser transmitted by the laser transmitter reaches the laser receiver through the laser limiting plate;
the camera and the lighting equipment are fixed on the outer side of the elevator car and used for acquiring information of a deformation area of the elevator guide rail;
and the control system is connected with the optical fiber sensor, the laser transmitter, the laser receiver, the camera and the lighting equipment and used for controlling the elevator car to move to the deformation area, controlling the camera and the lighting equipment to acquire images of the deformation area and simultaneously transmitting deformation information of the elevator guide rail on the wall of the elevator shaft to workers.
2. The hoistway wall deformation monitoring device of claim 1, wherein the laser limiting plate has a through hole for passing the laser therethrough.
3. A method for monitoring deformation of a hoistway wall of an elevator, comprising the steps of:
s1, the optical fiber sensors are embedded in concrete around the elevator shaft wall, when the elevator shaft is inclined or the bearing change causes the optical fiber sensors embedded around the elevator shaft to bend, the control system analyzes output signals of the optical fiber sensors to know whether the optical fibers bend or not, and therefore whether the elevator shaft wall deforms or not is judged;
s2, fixing the laser transmitter and the laser receiver on the wall of the elevator shaft and at two ends of the elevator guide rail, when the monitoring equipment starts to work, the laser transmitted by the laser transmitter is received by the laser receiver after passing through the laser limiting plate, which shows that the straightness of the elevator guide rail is good, and the elevator shaft wall attached to the elevator guide rail normally has no local deformation problem;
s3, if the local area of the elevator shaft wall deforms, the elevator guide rail attached to the elevator shaft wall deforms, so that the relative original position of the laser limiting plate fixed on the elevator guide rail is changed, and the laser signal emitted by the laser emitter cannot penetrate through the through hole in the laser limiting plate to reach the laser receiver and is blocked by the laser limiting plate;
s4, the control system calculates the distance from the laser limiting plate to the laser emitter according to the reflection signal of the laser on the laser limiting plate, the control system controls the elevator car to move to a deformation area, controls the camera and the lighting equipment which are fixed on the outer side of the elevator car to collect images of the deformation area, transmits the deformation information of the elevator guide rail on the wall of the elevator shaft to workers, and the workers analyze the information collected by the camera after receiving the information and detect the fault area to check the deformation of the wall of the elevator shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210271588.9A CN114593686B (en) | 2022-03-18 | 2022-03-18 | Device and method for monitoring deformation of shaft wall of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210271588.9A CN114593686B (en) | 2022-03-18 | 2022-03-18 | Device and method for monitoring deformation of shaft wall of elevator |
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| Publication Number | Publication Date |
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| CN114593686A true CN114593686A (en) | 2022-06-07 |
| CN114593686B CN114593686B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210271588.9A Active CN114593686B (en) | 2022-03-18 | 2022-03-18 | Device and method for monitoring deformation of shaft wall of elevator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454831A (en) * | 2002-05-03 | 2003-11-12 | 因温特奥股份公司 | Method for monitoring shaft door of elevator |
| CN101477179A (en) * | 2009-01-15 | 2009-07-08 | 艾默生网络能源有限公司 | On-line AC detection method and system for internal resistance of accumulator |
| CN108627186A (en) * | 2018-03-22 | 2018-10-09 | 安徽理工大学 | To the method for fiber optic sensor system and deformation early warning that the borehole wall is monitored |
| JP2021091508A (en) * | 2019-12-09 | 2021-06-17 | 株式会社日立ビルシステム | Automatic measuring system for rail bracket fixing unit |
| CN113218318A (en) * | 2021-04-23 | 2021-08-06 | 佛山市新一建筑集团有限公司 | Deformation monitoring method and device |
| CN214951155U (en) * | 2021-06-09 | 2021-11-30 | 扎赉诺尔煤业有限责任公司 | Vertical shaft cage guide deformation optical fiber real-time monitoring system |
-
2022
- 2022-03-18 CN CN202210271588.9A patent/CN114593686B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454831A (en) * | 2002-05-03 | 2003-11-12 | 因温特奥股份公司 | Method for monitoring shaft door of elevator |
| CN101477179A (en) * | 2009-01-15 | 2009-07-08 | 艾默生网络能源有限公司 | On-line AC detection method and system for internal resistance of accumulator |
| CN108627186A (en) * | 2018-03-22 | 2018-10-09 | 安徽理工大学 | To the method for fiber optic sensor system and deformation early warning that the borehole wall is monitored |
| JP2021091508A (en) * | 2019-12-09 | 2021-06-17 | 株式会社日立ビルシステム | Automatic measuring system for rail bracket fixing unit |
| CN113218318A (en) * | 2021-04-23 | 2021-08-06 | 佛山市新一建筑集团有限公司 | Deformation monitoring method and device |
| CN214951155U (en) * | 2021-06-09 | 2021-11-30 | 扎赉诺尔煤业有限责任公司 | Vertical shaft cage guide deformation optical fiber real-time monitoring system |
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| CN114593686B (en) | 2023-07-28 |
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