CN115626538A - Detection device and detection method for working condition of steel wire rope of traction type elevator traction wheel - Google Patents
Detection device and detection method for working condition of steel wire rope of traction type elevator traction wheel Download PDFInfo
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- CN115626538A CN115626538A CN202211166082.8A CN202211166082A CN115626538A CN 115626538 A CN115626538 A CN 115626538A CN 202211166082 A CN202211166082 A CN 202211166082A CN 115626538 A CN115626538 A CN 115626538A
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- wire rope
- steel wire
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- working condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
Abstract
The invention discloses a detection device and a detection method for the working condition of a steel wire rope of a traction type elevator traction sheave, wherein the detection device comprises an ultra-high definition camera, a light supplement lamp, a power adapter and network transmission exchange equipment, wherein the ultra-high definition camera is installed in an elevator machine room through a camera hoisting support and is parallel to the bead of the steel wire rope of the traction type elevator traction sheave; the light supplement lamp is positioned behind the ultra-high-definition camera; the ultra-high definition camera is communicated with an elevator control system through a 485 communication interface; the ultra-high-definition camera is internally provided with a built-in chip and a built-in memory connected with the built-in chip, and the built-in chip is internally provided with an intelligent algorithm; the built-in memory stores a standard gallery. According to the device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction wheel, the working condition monitoring can be completed in real time through the real-time image of the steel wire rope of the traction type elevator traction wheel obtained by the ultra-high-definition camera, and the influence of human factors is avoided to the maximum extent.
Description
Technical Field
The invention relates to a detection device and a detection method for the working condition of a steel wire rope of a traction sheave of a traction elevator.
Background
The steel wire rope of the traction sheave of the traction type elevator is an important device for bearing and transporting the elevator and the personnel and goods carried by the elevator, and the maintenance of stable and qualified working conditions is of great importance to the whole elevator system.
Under the conventional condition, various working conditions of the steel wire rope of the traction type elevator traction wheel are inspected in a mode of regular inspection by maintenance personnel, a mode of visual inspection, a mode of tool measurement and the like. Once the abnormal working condition is found, treatment is immediately given. The mode is greatly influenced by human factors, so that risks such as delay in abnormal working condition discovery, faulty elevator operation and the like can be caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for detecting the working condition of a steel wire rope of a traction type elevator traction wheel.
The technical scheme for realizing the purpose is as follows: a detection device and a detection method for the working condition of a steel wire rope of a traction sheave of a traction type elevator are disclosed, wherein the detection device comprises an ultra-high definition camera, a light supplement lamp, a power adapter and network transmission exchange equipment, and the detection method comprises the following steps:
the ultrahigh-definition camera is installed in an elevator machine room through a camera hoisting support, is parallel to a bead of a steel wire rope of a traction wheel of the traction type elevator, and is 50-60 cm away;
the light supplement lamp is connected with the camera hoisting support through a light supplement lamp support, is positioned behind the ultrahigh-definition camera and is opposite to the bead of a steel wire rope of a traction type elevator traction sheave;
the power adapter provides power for the ultra-high definition camera and the light supplement lamp; the network transmission switching equipment is used for transmitting images acquired by the ultra-high-definition camera; the light supplement lamp is communicated with an elevator control system;
the ultra-high-definition camera is communicated with an elevator control system through a 485 communication interface;
a built-in chip and a built-in memory connected with the built-in chip are arranged in the ultra-high definition camera, and an intelligent algorithm is arranged in the built-in chip; the built-in memory stores a standard gallery, and the standard gallery is a state picture of a steel wire rope of a traction type elevator traction sheave under a normal working condition;
the detection method comprises the following steps:
s1, when the elevator is not started, the ultrahigh-definition camera takes a snapshot of the working condition of a steel wire rope of a traction wheel of the traction type elevator, a built-in chip takes the snapshot picture after weight loss and screening, and the picture meeting the following conditions is selected: the steel wire rope of the traction wheel of the traction type elevator is positioned in the middle of the captured picture; and the snap shot picture has no phenomena of overexposure and over darkness; the snapshot picture is well focused and clear;
s2, intelligently comparing, analyzing and judging the acquired snapshot picture and a state picture of a steel wire rope of a traction type elevator traction wheel in a standard image library under a normal working condition through an intelligent algorithm by using a built-in chip of the ultra-high definition camera, transmitting a judgment result to an elevator control system through a 485 protocol, and feeding back the received judgment result to an elevator remote management center by the elevator control system.
The detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction wheel are characterized in that the camera hoisting support is L-shaped, the top end of the vertical part of the camera hoisting support is connected with the roof of an elevator machine room, and the ultra-high definition camera is fixed on the transverse part of the camera hoisting support through a flange plate; one end of the light supplement lamp support is connected with the vertical portion of the camera hoisting support, and the light supplement lamp is rotatably connected with the other end of the light supplement lamp support.
The device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction wheel are characterized in that the light supplement lamp is an LED flat light supplement lamp, and the illuminance of the steel wire rope of the traction type elevator traction wheel after light supplement is 280Lux.
The detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction wheel are characterized in that the physical resolution of the ultra-high-definition camera is not less than 3920 × 2160, the frame rate is not less than 25 frames/second, the computing power of a built-in chip is not less than 1.2T H/s, a power supply adopts 12VDC, and a network conforming to a TCP/IP protocol is adopted as a transmission carrier of video signals.
The detection device and the detection method thereof are used for judging four working conditions of the steel wire rope of the traction type elevator traction wheel, wherein the four working conditions are whether the steel wire rope is greasy or not, whether the steel wire rope is thin or not, whether cage-shaped distortion exists or not and whether the steel wire rope is out of groove or not; the built-in chip of the ultra-high definition camera intelligently compares the acquired snapshot picture with the state picture of the steel wire rope of the traction type elevator traction wheel in the standard image library under the normal working condition through an intelligent algorithm, and the comparison analysis abnormity judgment standard of the four working conditions is shown in table 1:
table 1: comparison analysis abnormity judgment standard for four working conditions
When the working condition of the steel wire rope of the traction type elevator traction wheel is judged to be abnormal, the built-in chip transmits the working condition abnormality judgment result to the elevator control system through a 485 protocol, and the elevator control system feeds the received working condition abnormality judgment result back to the elevator remote management center to remind maintenance personnel to process the working condition abnormality judgment result in time.
According to the detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction wheel, the real-time image of the steel wire rope of the traction type elevator traction wheel obtained by the ultra-high-definition camera is compared with the state image of the steel wire rope of the traction type elevator traction wheel under the normal working condition; when the working condition of a steel wire rope of a traction wheel of a traction type elevator changes, the working condition can be monitored at the first time, and a judgment result is given; the influence of human factors can be avoided to the maximum extent, and the monitoring and the judgment of the change of the working condition of the steel wire rope of the traction wheel of the traction type elevator can be real-time and are not influenced by external factors; the elevator control system can be suitable for any elevator with a machine room and is not influenced by the installation environment of the elevator.
Drawings
FIG. 1 is a schematic view of the installation of a device for detecting the working condition of a steel wire rope of a traction sheave of a traction elevator;
FIG. 2 is a diagram of the position relationship between a steel wire rope of a traction sheave of a traction elevator and an ultra-high definition camera;
fig. 3 is a flowchart of a method of the device for detecting the working condition of the wire rope of the traction sheave of the traction elevator of the present invention;
fig. 4 is a schematic diagram of comparing, measuring and calculating the diameter of a wire rope of a traction sheave of a traction elevator.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1 and 2, in a preferred embodiment of the present invention, a detection apparatus for detecting a working condition of a steel wire rope of a traction sheave of a traction elevator and a detection method thereof include an ultra high definition video camera 1, a fill light 2, a power adapter (not shown in the figure) and a network transmission switching device (not shown in the figure).
The ultra-high-definition camera 1 is installed in an elevator machine room through a camera hoisting support 4, and the ultra-high-definition camera 1 is parallel to the bead of a steel wire rope 9 of a traction type elevator traction wheel and is 50-60 cm away from the bead; the light supplement lamp 2 is connected with the vertical part of the camera hoisting support 4 through a light supplement lamp support 21, and the light supplement lamp 2 is positioned behind the ultra-high definition camera 1 and is opposite to the bead of the steel wire rope 9 of the traction type elevator traction sheave; the power adapter provides power to the ultra-high definition camera 1 and the light supplement lamp 2; the network transmission switching equipment is used for transmitting images acquired by the ultra-high-definition camera 1; the light supplement lamp 2 is communicated with an elevator control system; the ultrahigh-definition camera 1 is communicated with an elevator control system through a 485 communication interface; the ultra-high definition camera 1 is internally provided with a built-in chip and a built-in memory connected with the built-in chip, and the built-in chip is internally provided with an intelligent algorithm; the built-in memory stores a standard gallery, and the standard gallery is a state picture of the traction sheave steel wire rope of the traction type elevator under the normal working condition.
Specifically, the traction machine 5 is installed in an elevator machine room through an I-steel 8, the camera hoisting support 4 is L-shaped, the height of the L-shaped camera hoisting support 4 is matched with the tangent position of a traction type elevator traction wheel and a steel wire rope, and the length of the L-shaped camera hoisting support is matched with the installation position of the traction type elevator traction wheel. The top end of the vertical part of the camera hoisting support 4 is connected with the roof 6 of the elevator machine room, the ultra-high definition camera 1 is fixed on the horizontal part of the camera hoisting support 4 through a flange plate, the focusing surface of the ultra-high definition camera 1 is positioned on the plane 9 where the steel wire rope 9 of the traction type elevator traction wheel is positioned, and the distance between the ultra-high definition camera 1 and the steel wire rope which is not in the protective cover of the traction type elevator traction wheel is about 50 cm-60 cm (see figure 2). The physical resolution of the ultra-high definition video camera 1 is not less than 3920 × 2160, the frame rate is not less than 25 frames/second, the computing power of a built-in chip is not less than 1.2T H/s, a power supply adopts 12VDC, and a network conforming to a TCP/IP protocol is adopted as a transmission carrier of video signals. The ultra-high-definition camera 1 is connected with the elevator control cabinet 7 through a twisted pair by using a 485 interface, so that the ultra-high-definition camera 1 is communicated with an elevator control system through a 485 protocol.
In order to better obtain high-definition pictures of the steel wire rope of the traction sheave of the traction type elevator, the detection device also comprises a light supplementing lamp 2. The light supplement lamp 2 is an LED flat light supplement lamp, and is fixed on an L-shaped support for hoisting the ultra-high definition camera through a light supplement lamp support. One end of the light supplement lamp support is fixed on a camera hoisting support for hoisting the ultra-high definition camera in a hoop mode, and the other end of the light supplement lamp support is connected with the LED flat light supplement lamp in a reliable and rigid mode through a universal joint support. The angle of the LED flat light supplement lamp can be flexibly adjusted through the universal joint support, so that the best adaptive illumination intensity can be obtained when the ultra-high definition camera shoots, and the illumination intensity of the steel wire rope of the traction type elevator traction wheel after light supplement is 280Lux. The light supplement lamp 2 is connected with a switching value output interface of the elevator control cabinet 7, and the elevator control system outputs a switching value signal to the LED panel light supplement lamp through the elevator control cabinet 7.
When the elevator works, namely the traction type elevator traction sheave starts to move, the elevator control system outputs 485 signals to the ultra-high-definition camera 1 through the elevator control cabinet 7. At this time, the ultra-high definition camera 1 temporarily stops capturing the working condition of the steel wire rope. When the elevator stops working, namely when the traction sheave of the traction type elevator stops moving, the elevator control system outputs 485 signals to the ultra-high definition camera through the elevator control cabinet 7 and outputs switching value signals to the LED panel light supplementing lamp 2. At the moment, the LED flat light supplement lamp 2 is turned on to start light supplement; meanwhile, the ultra-high-definition camera 1 starts to capture the working condition of the steel wire rope. The snapshot frequency is 5 pieces/second, until the traction sheave of the traction type elevator starts to move again, the ultrahigh-definition camera 1 stops the snapshot of the working condition of the steel wire rope. And comparing the snap shot picture with a working condition picture of a standard traction type elevator traction sheave steel wire rope preset in the memory of the ultra-high definition camera, and analyzing and judging through a built-in intelligent algorithm.
Referring to fig. 3, the detection device can be used for detecting the working condition of the steel wire rope of the traction sheave of the traction elevator, and the detection method comprises the following steps:
s1, when the elevator is not started, the ultrahigh definition camera 1 captures the working condition of a steel wire rope of a traction wheel of the traction type elevator, and a built-in chip selects pictures meeting the following conditions after removing weights and screening the captured pictures: the steel wire rope of the traction wheel of the traction type elevator is positioned in the middle of the captured picture; and the snap shot picture has no phenomena of overexposure and over darkness; the snapshot picture is good in focusing and clear;
s2, intelligently comparing, analyzing and judging the acquired snapshot picture and a state picture of a steel wire rope of a traction type elevator traction wheel in a standard image library under a normal working condition through an intelligent algorithm by using a built-in chip of the ultra-high definition camera, transmitting a judgment result to an elevator control system through a 485 protocol, and feeding back the received judgment result to an elevator remote management center by the elevator control system.
The detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction wheel can be used for judging four working conditions of the steel wire rope of the traction type elevator traction wheel, wherein the four working conditions are whether the steel wire rope is greasy or not, whether the steel wire rope is thin or not, whether cage-shaped distortion exists or not and whether the steel wire rope is out of groove or not; the acquired snapshot picture and a state picture of a traction type elevator traction wheel steel wire rope in a standard image library under a normal working condition are intelligently compared through an intelligent algorithm by a built-in chip of the ultra-high-definition camera, and the comparison analysis abnormity judgment standard of four working conditions is shown in a table 1:
table 1:
when the working condition of the steel wire rope of the traction type elevator traction wheel is judged to be abnormal, the built-in chip transmits the working condition abnormality judgment result to the elevator control system through a 485 protocol, and the elevator control system feeds the received working condition abnormality judgment result back to the elevator remote management center to remind maintenance personnel to process the working condition abnormality judgment result in time.
The following takes an intelligent algorithm for comparing, measuring and calculating the diameter of the steel wire rope of the traction sheave of the traction type elevator as an example,
referring to fig. 4, when the detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction sheave of the present invention are used to determine whether the diameter of the steel wire rope of the traction type elevator traction sheave is reduced, the reference standard is obtained by the built-in chip of the ultra high definition camera 1 through the calibration reference pattern a in the standard library. The reference standard is defined as a square block of 5mm x 5 mm. The ultra high definition camera 1 shoots and obtains a steel wire rope picture B, a built-in chip of the ultra high definition camera 1 utilizes a square block in the calibration reference pattern as a comparison reference object, and the comparison reference object is compared with the obtained steel wire rope image, so that the diameter of the steel wire rope is measured and calculated. If the diameter of the steel wire rope measured and calculated by the ultra-high-definition camera is smaller than 90% of a set value, the judgment result of diameter reduction is output to the elevator control system, the elevator control system feeds back the received working condition abnormity judgment result of the diameter reduction of the steel wire rope to the elevator remote management center, and maintenance personnel are reminded to process the working condition abnormity in time.
When judging whether the steel wire rope of the traction type elevator traction wheel is greasy or not, whether cage-shaped distortion exists or not and whether a groove is separated or not, the detection principle is similar to that of judging whether the diameter of the steel wire rope of the traction type elevator traction wheel is thin or not.
In summary, according to the detection device and the detection method for the working condition of the steel wire rope of the traction type elevator traction wheel, the real-time image of the steel wire rope of the traction type elevator traction wheel obtained by the ultra-high definition camera is compared with the state image of the steel wire rope of the traction type elevator traction wheel under the normal working condition; when the working condition of a steel wire rope of a traction wheel of a traction type elevator changes, the working condition can be monitored at the first time, and a judgment result is given; the influence of human factors can be avoided to the maximum extent, and the monitoring and the judgment of the change of the working condition of the steel wire rope of the traction wheel of the traction type elevator can be real-time and are not influenced by external factors; the elevator control system can be suitable for any elevator with a machine room and is not influenced by the installation environment of the elevator.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (5)
1. A detection device and a detection method for the working condition of a steel wire rope of a traction type elevator traction wheel are characterized in that the detection device comprises an ultra-high-definition camera, a light supplement lamp, a power adapter and network transmission and exchange equipment, wherein:
the ultrahigh-definition camera is installed in an elevator machine room through a camera hoisting support, is parallel to a bead of a steel wire rope of a traction wheel of the traction type elevator and is 50-60 cm away from the bead;
the light supplement lamp is connected with the camera hoisting support through a light supplement lamp support, is positioned behind the ultrahigh-definition camera and is opposite to the bead of a steel wire rope of a traction type elevator traction sheave;
the power adapter provides power for the ultra-high definition camera and the light supplement lamp; the network transmission switching equipment is used for transmitting images acquired by the ultra-high-definition camera; the light supplement lamp is communicated with an elevator control system;
the ultra-high-definition camera is communicated with an elevator control system through a 485 communication interface;
a built-in chip and a built-in memory connected with the built-in chip are arranged in the ultra-high definition camera, and an intelligent algorithm is arranged in the built-in chip; the built-in memory stores a standard gallery, and the standard gallery is a state picture of a steel wire rope of a traction type elevator traction sheave under a normal working condition;
the detection method comprises the following steps:
s1, when the elevator is not started, the ultra-high definition camera takes a snapshot of the working condition of a steel wire rope of a traction wheel of the traction type elevator, and a built-in chip takes the snapshot of the picture after weight losing and screening and selects the picture meeting the following conditions: the steel wire rope of the traction wheel of the traction type elevator is positioned in the middle of the captured picture; and the snap shot picture has no phenomena of overexposure and over darkness; the snapshot picture is good in focusing and clear;
s2, intelligently comparing, analyzing and judging the acquired snapshot picture and a state picture of a traction type elevator traction wheel steel wire rope in a standard image library under a normal working condition through an intelligent algorithm by using a built-in chip of the ultra-high definition camera, transmitting a judgment result to an elevator control system through a 485 protocol, and feeding back the received judgment result to an elevator remote management center by the elevator control system.
2. The device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction wheel according to claim 1, wherein the camera hoisting support is L-shaped, the top end of the vertical part of the camera hoisting support is connected with the roof of an elevator machine room, and the ultra-high definition camera is fixed on the horizontal part of the camera hoisting support through a flange plate; one end of the light supplement lamp support is connected with the vertical part of the camera hoisting support, and the light supplement lamp is rotatably connected with the other end of the light supplement lamp support.
3. The device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction wheel according to claim 1, wherein the light supplement lamp is an LED flat light supplement lamp, and the illuminance of the steel wire rope of the traction type elevator traction wheel after light supplement is 280Lux.
4. The device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction sheave according to claim 1, wherein the physical resolution of the ultra-high-definition camera is not less than 3920 × 2160, the frame rate is not less than 25 frames/second, the computing power of a built-in chip is not less than 1.2T H/s, a power supply adopts 12VDC, and a network conforming to a TCP/IP protocol is adopted as a transmission carrier of video signals.
5. The device and the method for detecting the working condition of the steel wire rope of the traction type elevator traction wheel according to claim 1 are characterized in that the device and the method are used for judging four working conditions of the steel wire rope of the traction type elevator traction wheel, wherein the four working conditions are whether the steel wire rope is greasy or not, whether the steel wire rope is thin or not, whether cage-shaped distortion exists or not and whether the steel wire rope is out of groove or not; the built-in chip of the ultra-high definition camera intelligently compares the acquired snapshot picture with the state picture of the steel wire rope of the traction type elevator traction wheel in the standard image library under the normal working condition through an intelligent algorithm, and the comparison analysis abnormity judgment standard of the four working conditions is shown in table 1:
table 1: comparison analysis abnormity judgment standard for four working conditions
When the working condition of the steel wire rope of the traction type elevator traction wheel is judged to be abnormal, the built-in chip transmits the working condition abnormality judgment result to the elevator control system through a 485 protocol, and the elevator control system feeds the received working condition abnormality judgment result back to the elevator remote management center to remind maintenance personnel to process the working condition abnormality judgment result in time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211166082.8A CN115626538A (en) | 2022-09-23 | 2022-09-23 | Detection device and detection method for working condition of steel wire rope of traction type elevator traction wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211166082.8A CN115626538A (en) | 2022-09-23 | 2022-09-23 | Detection device and detection method for working condition of steel wire rope of traction type elevator traction wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116553440A (en) * | 2023-04-14 | 2023-08-08 | 云南建源电力器材有限公司 | Anti-falling device for overhead operation of power transmission line |
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2022
- 2022-09-23 CN CN202211166082.8A patent/CN115626538A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116553440A (en) * | 2023-04-14 | 2023-08-08 | 云南建源电力器材有限公司 | Anti-falling device for overhead operation of power transmission line |
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