CN104660988B - Mining elevator winch main shaft radial direction bias detecting method - Google Patents
Mining elevator winch main shaft radial direction bias detecting method Download PDFInfo
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- CN104660988B CN104660988B CN201510042215.4A CN201510042215A CN104660988B CN 104660988 B CN104660988 B CN 104660988B CN 201510042215 A CN201510042215 A CN 201510042215A CN 104660988 B CN104660988 B CN 104660988B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 15
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Abstract
The invention discloses a kind of mining elevator winch main shaft radial direction bias detecting method and supervising device, it is parallel with brake disc end face including high-definition camera, image processing module, target monitoring module, characteristic extracting module, computing module, display and alarm, high-definition camera camera lens；And high-definition camera alignment lenses brake disc end face local edge, high-definition camera, image processing module, target monitoring module, characteristic extracting module and computing module are sequentially connected electrically, display and alarm are electrically connected in computing module, pass through calculating, draw maximum beat and the beat direction of brake disc, that is, the inclined size of radial direction of winch main shaft and offset direction；Beneficial effect is to realize to monitor elevator winch main shaft radial deflection in real time, and size and the offset direction of the radial deflection of winch main shaft are shown by display, and is furnished with alarm, is alarmed when offset reaches given threshold.
Description
Technical field
The present invention relates to a kind of mining elevator winch main shaft radial direction bias detecting method and supervising device, belongs to mine prison
Control engineering device technique field.
Background technology
Mine hoist is the large-scale key equipment in the production processes such as coal, nonferrous metallic ores, and elevator is mainly made
For lifts personnel and ore, coal etc., its performance and security reliability directly affect the production and its operation of coal, ore
The life security of personnel, once accident, which occurs, necessarily causes the serious damage of the normal production disruption in mine, the injures and deaths of personnel and equipment
It is bad, great economic loss is caused, is known as the title of " ore throat ".With the progress of modern science and technology, Modern Pit
Build, more attention and the protection of mining equiment to operating personnel's life, security reliability of the people to mine hoist
Propose higher requirement.
In recent years, relevant department of China does a lot of work in terms of mine hoist safety, makes the peace of mine hoisting machine equipment
Full property has significant progress, and the theory of " reliability system engineering " is introduced to the field of mine hoist.Mutually fit therewith
Should, to brake disc in rotation process, radially maximum beat amount requires also more and more higher to elevator.Mining equiment belongs to heavy duty
Type equipment, winch main shaft used are essentially all sliding bearing with rotating bearing used.During winch main shaft works,
The phenomenon of radial deflection occurs, offset crosses the vibration and noise that conference directly influences bearing in the course of the work, and then
The performance of the whole lifting system of elevator is influenceed, equipment can be caused to damage more than the deviation range allowed, can be real-time
Monitor its offset and alarm during more than allowance is particularly important.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of mining elevator winch main shaft radial deflection inspection
Survey method and supervising device, realize the real-time monitoring and alarm of pair twist lathe main shaft radial deflection.
To achieve these goals, the technical solution adopted by the present invention is：A kind of mining elevator winch main shaft is radially inclined
Detection method is moved, is comprised the following steps：
A：Monitoring shooting, and brake disc is worked in real time is carried out to the edge local location of brake disc using high-definition camera
Moving image in journey is delivered in image processing module；
B：The video image information that high-definition camera collection comes is resolved into each frame image information by image processing module；
C：Image edge processing is carried out to each frame brake disc topography collected, extracts brake disc local edge image；
D：Boundary curve extraction is carried out to the local edge image extracted；
E：The boundary curve of extraction is smoothed, obtains boundary curve；
F：The coordinate of three coordinate points is extracted on boundary curve in each two field picture, coordinate value is respectively；P1(x1,
y1)、P2(x2,y2)、P3(x3,y3)；
G：According to the coordinate of three coordinate points, P1 (x1,y1)、P2(x2,y2)、P3(x3,y3), try to achieve side in each two field picture
Edge curve circle centre coordiate；Computational methods are：If A=x1 2+y1 2, B=x2 2+y2 2, C=x3 2+y3 2, G=(y3-y2)*x1+(y1-y3)*
x2+(y2-y1)*x3, the central coordinate of circle P0 (x of boundary curve can be obtained0,y0), wherein x0=((B-C) * y1+(C-A)*y2+(A-B)*
y3)/2G,y0=((C-B) * x1+(A-C)*x2+(B-A)*x3)/2G；
H：The central coordinate of circle of boundary curve in each two field picture is subjected to xo 2+yo 2Processing, compares size, draws maximum
When brake disc centre coordinate (xmax,ymax), the maximum beat of brake disc is, beat direction is with x-axis institute angulation
arctan(ymax / xmax)；
I：The brake disc maximum beat being calculated and beat direction are delivered into computer display real-time display, whenStart alarm module when reaching given threshold.
Preferably, in step B, processing is filtered to the image of each frame.
A kind of mining elevator winch main shaft radial direction offset monitoring, including high-definition camera, image processing module, mesh
It is parallel with brake disc end face to mark monitoring modular, characteristic extracting module, computing module, display and alarm, high-definition camera camera lens；
And high-definition camera alignment lenses brake disc end face local edge, high-definition camera, image processing module, target monitoring module, spy
Sign extraction module and computing module are sequentially connected electrically, and display and alarm are electrically connected in computing module.
The present invention realizes to be monitored in real time to elevator winch main shaft radial deflection, and winch is shown by display
The size of the radial deflection of main shaft and offset direction, and it is furnished with alarm, alarmed when offset reaches given threshold.
Brief description of the drawings
Fig. 1 is brake disc axial direction and high-definition camera position relationship schematic diagram；
Fig. 2 is brake disc radial direction and high-definition camera position relationship schematic diagram；
Fig. 3 is imaging schematic diagram of the brake disc in high-definition camera；
Fig. 4 is brake disc local edge curve synoptic diagram；
Fig. 5 is that coordinate points schematic diagram is extracted on boundary curve；
Fig. 6 is brake disc motion process schematic diagram；
Fig. 7 is the flow chart of detection method in the present invention；
Fig. 8 is the theory diagram of supervising device in the present invention.
In figure：1st, brake disc, 2, high-definition camera.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Mining elevator winch main shaft radial direction bias detecting method in the present invention, comprises the following steps：
A：Monitoring shooting in real time is carried out to the edge local location of brake disc 1 using high-definition camera 2, and by the work of brake disc 1
Moving image during work is delivered in image processing module；
B：High-definition camera 2 is gathered the video image information to come and resolves into each two field picture letter by image processing module
Breath；
C：Image edge processing is carried out to each topography of frame brake disc 1 collected, extracts the local edge figure of brake disc 1
Picture；
D：Boundary curve extraction is carried out to the local edge image extracted；
E：The boundary curve of extraction is smoothed, obtains boundary curve；
F：The coordinate of three coordinate points is extracted on boundary curve in each two field picture, coordinate value is respectively；P1(x1,
y1)、P2(x2,y2)、P3(x3,y3)；
G：According to the coordinate of three coordinate points, P1 (x1,y1)、P2(x2,y2)、P3(x3,y3), try to achieve side in each two field picture
Edge curve circle centre coordiate；Computational methods are：If A=x1 2+y1 2, B=x2 2+y2 2, C=x3 2+y3 2, G=(y3-y2)*x1+(y1-y3)*
x2+(y2-y1)*x3, the central coordinate of circle P0 (x of boundary curve can be obtained0,y0), wherein x0=((B-C) * y1+(C-A)*y2+(A-B)*
y3)/2G,y0=((C-B) * x1+(A-C)*x2+(B-A)*x3)/2G；
H：The central coordinate of circle of boundary curve in each two field picture is subjected to xo 2+yo 2Processing, compares size, draws maximum
When the centre coordinate (x of brake disc 1max,ymax), the maximum beat of brake disc 1 is, beat direction and x-axis institute angulation
For arctan (ymax / xmax)；
I：The 1 maximum beat of brake disc being calculated and beat direction are delivered into computer display real-time display, whenStart alarm module when reaching given threshold.
As shown in FIG. 7 and 8, the mining elevator winch main shaft radial direction offset monitoring in the present invention, including high definition are taken the photograph
Camera, image processing module, target monitoring module, characteristic extracting module, computing module, display and alarm, such as Fig. 1 and figure
Shown in 2, high-definition camera camera lens is parallel with brake disc end face；And high-definition camera alignment lenses brake disc end face local edge, high definition
Video camera, image processing module, target monitoring module, characteristic extracting module and computing module are sequentially connected electrically, display and report
Alert device is electrically connected in computing module.High-definition camera holding position is constant, realizes and monitoring shooting in real time is carried out to brake disc, will
Moving image in the brake disc course of work is transferred in image processing module；Image processing module comes high-definition camera collection
Video image information resolve into each frame image information, while in order to avoid picture noise has influence on the complete of whole image processing
Process and the result of output, noise filtering, i.e. filtering process preferably are carried out to each two field picture；Target monitoring module is to filtering
Image after processing carries out target monitoring, specially carries out image edge processing to the brake disc topography collected, extracts lock
Disk local edge image, boundary curve extraction is carried out to image, the boundary curve of extraction is smoothed to three steps；Will
The boundary curve information that smoothing processing is crossed delivers to characteristic extracting module, using characteristic extracting module, extracts three on boundary curve
The coordinate of individual coordinate points；Because winch main shaft has beat in motion process, so as to which brake disc beat in motion process can be driven,
Brake disc center can deviate former center of rotation, the i.e. origin of coordinates in slip chart 6 in motion process.The curve movement meeting at brake disc center
Form SPL, it is assumed that the curve movement at brake disc center is as shown in the SPL in Fig. 6, the direction of motion such as direction of arrow institute
Show, shown a, b, c, d point is each more a little bigger to beat.Brake disc center is moved by SPL, obtains brake disc in motion process
In coordinate points of the brake disc center on SPL corresponding to each frame, by calculating, draw the maximum beat and beat of brake disc
Direction, that is, the size of the radial deflection of winch main shaft and beat direction；Counted brake disc maximum beat and beat direction will be counted
Display real-time display is delivered to, starts alarm when evaluation reaches given threshold.
Claims (2)
1. a kind of mining elevator winch main shaft radial direction bias detecting method, it is characterised in that comprise the following steps：
A：Monitoring shooting in real time is carried out to the edge local location of brake disc (1) using high-definition camera (2), and by brake disc (1)
Moving image in the course of work is delivered in image processing module；
B：The video image information that high-definition camera (2) collection comes is resolved into each frame image information by image processing module；
C：Image edge processing is carried out to each frame brake disc (1) topography collected, extracts brake disc (1) local edge figure
Picture；
D：Boundary curve extraction is carried out to the local edge image extracted；
E：The boundary curve of extraction is smoothed, obtains boundary curve；
F：The coordinate of three coordinate points is extracted on boundary curve in each two field picture, coordinate value is respectively；P1(x1,y1)、P2
(x2,y2)、P3(x3,y3)；
G：According to the coordinate of three coordinate points, P1 (x1,y1)、P2(x2,y2)、P3(x3,y3), it is bent to try to achieve edge in each two field picture
Line central coordinate of circle；Computational methods are：If A=x1 2+y1 2, B=x2 2+y2 2, C=x3 2+y3 2, G=(y3-y2)*x1+(y1-y3)*x2+
(y2-y1)*x3, the central coordinate of circle P0 (x of boundary curve can be obtained0,y0), wherein x0=((B-C) * y1+(C-A)*y2+(A-B)*y3)/
2G,y0=((C-B) * x1+(A-C)*x2+(B-A)*x3)/2G；
H：The central coordinate of circle of boundary curve in each two field picture is subjected to xo 2+yo 2Processing, compares size, draws lock during maximum
Disk (1) centre coordinate (xmax,ymax), the maximum beat of brake disc (1) is, beat direction is with x-axis institute angulation
arctan(ymax / xmax)；
I：The maximum beat of the brake disc being calculated (1) and beat direction are delivered into computer display real-time display, whenStart alarm module when reaching given threshold.
A kind of 2. mining elevator winch main shaft radial direction bias detecting method according to claim 1, it is characterised in that B
In step, processing is filtered to the image of each frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510042215.4A CN104660988B (en) | 2015-01-27 | 2015-01-27 | Mining elevator winch main shaft radial direction bias detecting method |
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| CN201510042215.4A CN104660988B (en) | 2015-01-27 | 2015-01-27 | Mining elevator winch main shaft radial direction bias detecting method |
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| CN104660988B true CN104660988B (en) | 2018-01-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217111A (en) * | 2012-11-28 | 2013-07-24 | 西南交通大学 | Non-contact contact line geometrical parameter detecting method |
| CN103352713A (en) * | 2013-07-17 | 2013-10-16 | 中国矿业大学 | Artificial intelligent type hydraulic support electric-hydraulic control system |
| CN103968856A (en) * | 2014-04-04 | 2014-08-06 | 中国矿业大学 | Real-time detection method of hydraulic support poses |
| CN104003141A (en) * | 2014-04-21 | 2014-08-27 | 中国矿业大学 | Device and method for wirelessly monitoring scraper conveyer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8009193B2 (en) * | 2006-06-05 | 2011-08-30 | Fuji Xerox Co., Ltd. | Unusual event detection via collaborative video mining |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217111A (en) * | 2012-11-28 | 2013-07-24 | 西南交通大学 | Non-contact contact line geometrical parameter detecting method |
| CN103352713A (en) * | 2013-07-17 | 2013-10-16 | 中国矿业大学 | Artificial intelligent type hydraulic support electric-hydraulic control system |
| CN103968856A (en) * | 2014-04-04 | 2014-08-06 | 中国矿业大学 | Real-time detection method of hydraulic support poses |
| CN104003141A (en) * | 2014-04-21 | 2014-08-27 | 中国矿业大学 | Device and method for wirelessly monitoring scraper conveyer |
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Address after: No. 1, Tongshan University Road, Xuzhou, Jiangsu Province, Jiangsu Patentee after: China University of Mining & Technology Address before: 221000 Xuzhou University Road, Jiangsu, No. 1 Patentee before: China University of Mining & Technology |
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Granted publication date: 20180126 Termination date: 20190127 |